JPH09211176A - Tester for power range monitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency in the operation of a plant by saving the time and labor required for a linearity test for a local power range monitor(LPRM) unit in the start-up or a periodical inspection. SOLUTION: A parameter collecting means 23 collects LPRM gains of an LPRM unit 3 to be tested, and a dummy signal calculating means 21 calculates the set values of dummy detection signals on the basis of the LPRM gains so as to generate LPRM signals showing a prescribed local output value. Then, a dummy signal inputting means 22 inputs the dummy detection signals based on the calculated set value into the LPRM unit to be tested instead of in-vessel output signals, and a data collecting means 23 collects the LPRM signals sent from the LPRM unit. On the basis of the LPRM signals collected by the data collecting means 23 and the prescribed local output value mentioned above, moreover, an LPRM judgment means 21 judges whether the LPRM unit to be tested is abnormal or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output area monitor test device for testing a digital output area monitor which is a measurement control device in a nuclear power plant.

[0002]

2. Description of the Related Art In order to ensure the safety of a nuclear reactor, a nuclear power plant monitors the reactor output based on a signal obtained from a detector in the reactor, and outputs a reactor stop signal when the reactor is abnormal. Is provided with a digital output area monitor, and the digital output area monitor is provided with a test device for testing its connection and operation.

FIG. 13 is a block diagram schematically showing the construction of this type of digital output area monitor and its testing apparatus. This digital output range monitor is a
DPRNM (Digital Power Range Nuclea) in which detector 1 including 08 LPRM (Local Power Range Monitor) detectors and 4 core flow meters is divided and arranged in four.
r Monitor) 2 is connected separately. Since the four DPRNM2 have the same configuration, the first DPRNM2 will be described as an example, and the description of the other DPRNM2s will be omitted.

DPRNM2 is a plurality of LPRM units 3
And an APRM (Average Power Range Monitor) unit 4, and the APRM unit 4 is an RBM (Rod Block).
Monitor) Unit 5 is connected.

Each LPRM unit calculates each of the analog neutron detection signals received from the detector 1 in% conversion, and individually digitally converts the neutron detection signals to produce LPRM signals.
This LPRM signal is transmitted to the test equipment 6, host system 7 and A
It is given to the PRM unit 4. Each neutron detection signal is transmitted from the detector 1 to the APR without passing through the LPRM unit 3.
Some are input to the M unit 4.

[0006] The APRM unit 4 receives each LPRM signal and LPR obtained from the neutron detection signal received from the detector 1.
Each LPRM signal received from the M unit 3 is averaged to calculate an APRM signal, and this APRM signal is given to the test apparatus 6 and the RBM unit 5.

The RBM unit 5 calculates the RBM gain based on this APRM signal, calculates the RBM value from the RBM gain, and sends this RBM value to the test apparatus 6.

Further, the APRM unit 4 converts the analog core flow rate signal received from the detector 1 into% and FLOW.
A signal is obtained and this FLOW signal is sent to the host system 7 and the test apparatus 6.

On the other hand, the test apparatus 6 includes an LPRM / FLOW signal generator 8 composed of a neutron detector / core flow rate simulation signal generator and a voltmeter as an output signal monitor in order to test such a digital output range monitor. 9, other categories /
It is provided with a data control unit 10 composed of a simulated signal generator of another system and a data collection unit 11 as a DPRNM system signal monitor. During the test, the detector 1 of the actual plant, the host system 7, and the signal input unit 12 of the other system / other section are separated from the DPRNM 2.

The LPRM / FLOW signal generator 8 generates a neutron detection signal from the detector 1 or a simulated signal of the core flow rate signal based on the input operation of the operator, and the simulated signal corresponds to the LPRM unit 3 or APRM unit 4
Give to.

The voltmeter 9 turns back the LPRM signal sent from the LPRM unit 3 and the APRM unit 4
When the APRM signal sent from the
The LPRM value and A based on the M signal and the APRM signal
Display the PRM value.

Here, the LPRM / FLOW by the operator
When the value of the simulated signal is changed linearly by operating the signal generator 8, it is determined whether or not the display of the voltmeter 9 rises / falls in proportion to the value of the simulated signal.
It is possible to test the linearity of the M unit 3 and the APRM unit 4.

Further, in the trip test, similarly, the value of the simulated signal is changed for each minute unit, and the presence or absence of the trip is confirmed at the trip set point. The trimmer (variable resistance) is manually operated when the value of the simulated signal is changed in minute units.

On the other hand, similarly, when the simulation signal corresponding to the neutron detector around the selected control rod is input, the data collection unit 11 receives the RBM value sent from the RBM unit 5. , This RBM value is displayed.

The operation of the RBM unit 5 can be tested by determining whether or not the RBM value matches the expected RBM value.

[0016]

However, in the above-described test apparatus for the digital output area monitor, since the simulated signal is individually changed for the 208 neutron detectors by the input operation of the operator, the test is greatly performed. It takes a lot of time and effort.

Further, the simulated signal to be inputted needs to be calculated individually because the gain varies depending on the individual neutron detector, so that there is a problem that it takes more time and labor for the test.

Even when the simulated signal is input, when the simulated signal is raised or lowered in minute units, such as in the vicinity of a trip set point in a trip test or the like, a manual input using a trimmer requires an adjustment operation. There is a problem that takes time. Further, in the trip test, the trip set point tends to fluctuate as the simulated signal rises, and the adjustment operation of this tends to be troublesome.

When testing the RBM unit 5,
Since there is a work of changing only the simulated signal corresponding to the control rod, it is necessary to confirm the correspondence relationship in addition to the calculation of the simulated signal, and there is a problem that the test further takes time and labor.

The present invention has been made in consideration of the above-mentioned circumstances, and shortens the time required for tests such as start-up and periodic inspections and saves labor, and thus an output that can improve the operation efficiency of a plant. An object is to provide an area monitor test device.

A second object of the present invention is to provide an output area monitor test apparatus capable of improving the quality of the system by generating a simulation signal which is difficult to input manually.

[0022]

The invention according to claim 1 is to provide a plurality of LPRM units for converting an in-reactor output detection signal individually sent from a plurality of detectors in a nuclear reactor into an LPRM signal and sending the LPRM signal. An output range monitor test device for testing a reactor nuclear instrumentation system output range monitor comprising:
Of the LPRM units, a parameter collecting unit that collects the LPRM gain of the LPRM unit to be tested, and the LPRM collected by the parameter collecting unit
Simulation signal calculation means for calculating a setting value of the simulation detection signal so as to generate an LPRM signal showing a predetermined local output value based on the gain, and the simulation signal calculation instead of the in-reactor output signal of the detector. A simulated signal inputting means for inputting a simulated detection signal based on the set value calculated by the means to the LPRM unit to be tested, and when the simulated signal inputting means inputs the simulated detection signal to the LPRM unit, A data collection unit that collects the LPRM signal to be sent, and an LPRM determination that determines whether or not the LPRM unit to be tested is abnormal based on the LPRM signal collected by the data collection unit and the predetermined local output value. And an output area monitor test apparatus including means.

The invention according to claim 2 is an atom equipped with a plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals and sending the LPRM signals. A power range monitor test apparatus for testing a power range monitor of a nuclear reactor instrumentation system, comprising:
Parameter collecting means for collecting the LPRM gain of the unit, and each LP collected by the parameter collecting means
Based on the RM gain, a simulated signal input means for individually calculating simulated detection signals so as to generate LPRM signals showing the same value in all LPRM units and giving them to all LPRM units, and this simulated signal input means All LP
When the LPRM signals sent from the RM unit show substantially the same value, the simulated signal changing means for sequentially changing only the simulated detection signal of one LPRM unit to different values, and one simulated detection by this simulated signal changing means When only the signal is changed, an erroneous connection detecting means for determining whether or not there is an erroneous connection depending on whether or not the LPRM signal of this LPRM unit shows the changed value, and a simulation of one LPRM unit by this erroneous connection detecting means. When only the detection signal is changed, interference detection means for determining the presence / absence of interference by determining whether or not the LPRM signal of another LPRM unit changes, and for all LPRM units, the erroneous connection detection means causes an error. When it is determined that there is no connection, and when the interference detection means determines that there is no interference, all simulated detection signals are the same as each other. All signal changing means for changing the local output value to a predetermined value while holding the lock, and the simulated detection signals changed by the all signal changing means are sent from all LPRM units when input to all LPRM units. L
Data collecting means for individually collecting PRM signals, and all LPRM determining means for judging whether or not there is an abnormality in all LPRM units based on all LPRM signals collected by the data collecting means and the predetermined local output value It is an output area monitor test device provided with.

Further, the invention according to claim 3 is the output area monitor test apparatus according to claim 1 or claim 2, wherein each LPR collected by the data collecting means.
The M signal is stored as the current value, and the current value and
The output area monitor test device includes a history abnormality determination unit that determines whether or not there is an abnormality by comparing both previously stored values with a previously stored value.

The invention according to claim 4 is a plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals, and sending the LPRM signals, and Each LPR sent by the LPRM unit
AP for averaging M signals and converting to APRM signals for transmission
An output range monitor test apparatus for testing a reactor nuclear instrumentation system output range monitor including an RM unit, the LPRM gain of each LPRM unit connected to an APRM unit to be tested among the LPRM units. A first parameter collecting means for collecting
Second parameter collecting means for collecting the APRM gain of the unit, each LPRM gain collected by the first parameter collecting means, and a predetermined average based on the APRM gain collected by the second parameter collecting means. Simulated signal calculation means for individually calculating the set value of the simulated detection signal of each LPRM unit so as to generate the APRM signal indicating the output value, and the simulated signal calculation means instead of the in-reactor output signal of the detector. The simulated signal input means for inputting individual simulated detection signals based on each set value calculated by the above into each LPRM unit, and when each simulated detection signal is inputted into each LPRM unit by this simulated signal input means, A connected to LPRM unit
Based on the data collection means for collecting the APRM signal sent from the PRM unit, the APRM signal collected by the data collection means and the predetermined average output value,
It is an output area monitor test apparatus including APRM determination means for determining whether or not the APRM unit to be tested is abnormal.

Further, the invention according to claim 5 is the plurality of LPRMs for converting the in-reactor output detection signals individually sent from the plurality of detectors in the nuclear reactor into LPRM signals and sending the LPRM signals.
Unit and each LP sent by each LPRM unit
An APRM unit having a function of averaging RM signals and converting to an APRM signal for sending, and a function of converting a core flow rate detection signal individually sent from a plurality of flowmeters in the nuclear reactor to a FLOW signal and sending the signal. A power range monitor test apparatus for testing a power range monitor of a nuclear reactor instrumentation system, comprising: collecting LPRM gains of respective LPRM units connected to an APRM unit to be tested among the LPRM units. A first parameter collecting means, a second parameter collecting means for collecting an APRM gain of the APRM unit, a third parameter collecting means for collecting a core flow rate calculation coefficient of the APRM unit, and the first parameter collecting means. Each LPRM gain collected by the means and the AP collected by the second parameter collection means Based on the M gain, the respective LP to cause APRM signal indicating the predetermined average output value
First simulated signal calculating means for individually calculating the set value of the simulated detection signal of the RM unit, and an individual based on each set value calculated by the simulated signal calculating means instead of the in-reactor output signal of the detector First simulated signal inputting means for inputting the simulated detection signal of 1 to each LPRM unit, each LPRM gain collected by the first parameter collecting means, and A collected by the second parameter collecting means.
A second value for calculating the set value of the simulated flow rate detection signal so as to generate a FLOW signal indicating a predetermined in-core flow rate value based on the PRM gain and the core flow rate calculation coefficient collected by the third parameter collecting means. Simulated signal calculation means,
Second simulated signal input means for inputting a simulated flow rate detection signal based on a set value calculated by the second simulated signal calculation means to the APRM unit instead of the core flow rate detection signal of the flow meter, and the second simulated signal input means. When each simulated detection signal and simulated flow rate detection signal are input by the first and second simulated signal input means, the FLO sent from the APRM unit concerned.
Data collection means for collecting the W signal, and APRM determination means for determining whether or not the APRM unit to be tested is abnormal based on the FLOW signal collected by the data collection means and the predetermined core flow rate value. It is an output area monitor test device provided.

The invention according to claim 6 is a plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals, and sending the LPRM signals. Each LPR sent by the LPRM unit
A reactor nuclear instrumentation system output range monitor equipped with an APRM unit having a function of averaging M signals and converting them into an APRM signal to be sent, and a function of sending trip occurrence information when the APRM signal exceeds a trip set value. An output area monitor test device for testing, comprising:
A first parameter collecting means for collecting an LPRM gain of each LPRM unit connected to the APRM unit to be tested among the units; and A of the APRM unit.
Second parameter collecting means for collecting the PRM gain;
Each LP collected by the first parameter collecting means
Based on the RM gain and the APRM gain collected by the second parameter collecting means, each LPRM signal is generated so as to generate an APRM signal showing a predetermined average output value.
In place of the in-furnace output signal of the detector, a simulated signal calculating means for individually calculating the set value of the simulated detection signal of the unit,
Simulated signal input means for inputting individual simulated detection signals based on each set value calculated by the simulated signal calculation means to each LPRM unit, and each simulated detection signal is input to each LPRM unit by this simulated signal input means. When the trip occurrence information is collected by the trip information collecting means capable of gathering the trip occurrence information transmitted from the APRM unit connected to each LPRM unit, a predetermined trip setting criterion is set when the trip occurrence information is collected by the trip information collecting means. When the trip occurrence information is not collected by the APRM judging means for judging whether or not the APRM unit is abnormal by comparing with the value, the predetermined average output value in the simulated signal calculating means is set to the trip value. Minimum measurement resolution of the APRM unit towards the set reference value A power range monitor test apparatus and a setting changing means for updating at a unit smaller than.

Further, in the invention corresponding to claim 7, in the output area monitor testing device according to claim 6, when the trip occurrence information is not collected by the trip information collecting means as the setting changing means, the simulation is performed. When the deviation between the predetermined average output value in the signal calculating means and the trip setting reference value is larger than the predetermined changing unit, the predetermined average output value is updated toward the trip setting reference value in the predetermined changing unit. It is an output area monitor test device having a function to perform.

The invention according to claim 8 is a plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals, and sending the LPRM signals. Each LPR sent by the LPRM unit
A function of averaging M signals and converting them into APRM signals to be sent out, and a core flow rate detection signal individually sent out from a plurality of flowmeters in the reactor is converted into a FLOW signal, and this FL is used.
Function for determining trip set value from OW signal and AP
An output range monitor test apparatus for testing a reactor nuclear instrumentation system output range monitor, comprising an APRM unit having a function of transmitting trip occurrence information when an RM signal exceeds this trip set value, wherein each of the LPRMs Of the units, each L connected to the APRM unit under test
A first parameter collecting means for collecting a LPRM gain of a PRM unit, a second parameter collecting means for collecting an APRM gain of the APRM unit, and the AP
Third parameter collecting means for collecting core flow rate calculation coefficients of the RM unit, each LPRM gain collected by the first parameter collecting means, APRM gain collected by the second parameter collecting means, and the third parameter collecting means.
Simulated flow rate signal calculation means for calculating a set value of the simulated flow rate detection signal so as to generate a FLOW signal for generating the predetermined trip set value, based on the core flow rate calculation coefficient collected by the parameter collection means of , Simulated flow rate signal input means for inputting a simulated flow rate detection signal based on the set value calculated by the simulated flow rate signal calculation means to the APRM unit instead of the core flow rate detection signal of the flow meter, and the simulated flow rate signal input When the simulated flow rate detection signal is inputted by the means, the trip set value collecting means for collecting the trip set value from the APRM unit, the trip set value collected by the trip set value collecting means and the simulated flow rate signal calculating means are provided. When the trip set value corresponding to the FLOW signal calculated by Setting the simulated detection signal of each LPRM unit to generate an APRM signal exhibiting a predetermined average output value based on each LPRM gain collected by the means and the APRM gain collected by the second parameter collecting means. In place of the in-reactor output signal of the detector and the simulated signal calculating means for individually calculating the value, an individual simulated detection signal based on each set value calculated by the simulated signal calculating means is input to each LPRM unit. And a trip information capable of collecting trip occurrence information sent from the APRM unit connected to each LPRM unit when each simulation detection signal is input to each LPRM unit by the simulation signal input unit. When the trip occurrence information is collected by the collecting means and the trip information collecting means, By comparison with the trip setting value, when the the APRM determination means determines abnormal or not for APRM units, trip occurrence information is not collected by the trip information collecting means,
An output area monitor test apparatus comprising: a setting change unit that updates a predetermined average output value in the simulated signal calculation unit toward the trip setting reference value in a predetermined unit.

Further, in the invention corresponding to claim 9, the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor in which a plurality of control rods are arranged are converted into LPRM signals and sent out. A plurality of LPRM units and each of the LPRMs
APRM by averaging each LPRM signal transmitted by the unit
The APRM unit for converting into a signal and transmitting the signal, and the L
An output range monitor test apparatus for testing a reactor nuclear instrumentation system output range monitor, comprising: an RBM unit for monitoring the state inside the reactor based on each LPRM signal sent from the PRM unit; When a certain control rod is selected, a control rod / detector correspondence storage means in which the correspondence between the rod and each of the detectors is stored, and when a control rod is selected, the control rod / detector correspondence storage means is referred to Detector searching means for searching each corresponding detector, and a first parameter for collecting LPRM gain of each LPRM unit connected to each detector searched by the detector searching means among the LPRM units. Collecting means and a second parameter for collecting the APRM gain from an APRM unit connected via an LPRM unit to each detector different from the searched detectors. Based on the LPRM gain collected by the collecting means and the first parameter collecting means, a first simulated signal calculation for calculating a set value of the simulated detection signal so as to generate an LPRM signal showing a predetermined local output value. Unit and the in-furnace output signal of each detector searched by the detector searching unit, a simulated detection signal based on the set value calculated by the first simulated signal calculating unit is supplied to each corresponding LPRM unit. Based on the first simulated signal inputting means for inputting, the LPRM gain collected by the first parameter collecting means and the APRM gain collected by the second parameter collecting means, a predetermined R
The second simulated signal calculating means for calculating the set value of the simulated detection signal so as to generate the APRM signal indicating the average output value calculated from the BM gain, and the respective detectors searched by the detector searching means. Second simulated signal input means for inputting a simulated detection signal based on the set value calculated by the second simulated signal calculation means to each of the corresponding LPRM units instead of the in-reactor output signals of different detectors, The second
When the simulated detection signal is inputted to each LPRM unit by the simulated signal input means of No. 2, the selection control rod signal input means for inputting the selected control rod signal for selecting the control rod to the RBM unit and the simulated signal input means are inputted. The average value of the simulated detection signals is calculated, and the average value and the predetermined RB
The RBM gain is calculated based on the APRM signal corresponding to the M gain, and the selection control rod signal is input to the RBM unit by the RBM value calculation means for calculating the RBM value based on the calculation result and the selection control rod signal input means. Then, the RBM value collecting means for collecting the RBM value from the RBM unit, the RBM value calculated by the RBM value calculating means and the RBM value collected by the RBM value collecting means are compared, and both are compared. It is an output area monitor test apparatus including RBM determination means for determining that the RBM unit is abnormal when they do not match.

According to a tenth aspect of the present invention, in the output area monitor test apparatus according to the ninth aspect, positional information is included in the correspondence relationship between each control rod and each detector and stored. When the control rod / detector correspondence storage means and each detector corresponding to the control rod to be tested are retrieved from the control rod / detector correspondence storage means by the detector retrieval means, based on the retrieval result And an output area monitor test apparatus including display output means for displaying and outputting the position information of the control rod and each of the detectors.

Therefore, in the invention according to claim 1, the parameter collecting means collects the LPRM gain of the LPRM unit to be tested among the LPRM units by calculating the simulated signal by taking the above means. Means for collecting the LPRM collected by this parameter collecting means
Based on the gain, a set value of the simulated detection signal is calculated so as to generate an LPRM signal showing a predetermined local output value,
The simulated signal input means, in place of the in-reactor output signal of the detector,
When the simulated detection signal based on the set value calculated by the simulated signal calculating means is input to the LPRM unit to be tested, and the data collecting means inputs the simulated detection signal to the LPRM unit by this simulated signal inputting means, the LPRM unit concerned.
Collect the LPRM signal sent from the unit and
The M judgment means is the L collected by this data collection means.
Since it is determined whether or not the LPRM unit to be tested is abnormal based on the PRM signal and the predetermined local output value, it is possible to reduce the time and work required for the linearity test of the LPRM unit at the time of start-up or periodic inspection. It is possible to save labor and improve the operation efficiency of the plant.

In the invention corresponding to claim 2, the parameter collecting means collects the LPRM gains of all LPRM units, and the simulated signal inputting means collects the LPRM gains collected by the parameter collecting means. All L
In the PRM unit, simulated detection signals are individually calculated so as to generate LPRM signals having the same value, and all L
When the simulated signal changing means applied to the PRM unit and the LPRM signals transmitted from all the LPRM units by the simulated signal input means show substantially the same value, one L
Only the simulated detection signal of the PRM unit is changed to a different value, and the erroneous connection detection means is set to 1 by this simulated signal changing means.
When only one simulated detection signal is changed, this LPRM
Whether or not there is an erroneous connection is determined depending on whether or not the LPRM signal of the unit shows the changed value, and when the interference detecting means changes only the simulated detection signal of one LPRM unit by the erroneous connection detecting means, L of the LPRM unit
The presence or absence of interference is determined by determining whether or not the PRM signal changes, and the all signal changing means determines that there is no incorrect connection by the incorrect connection detecting means for all LPRM units, and there is no interference by the interference detecting means. If it is determined that all the simulated detection signals are changed to a predetermined local output value while maintaining the same relationship with each other, the data collection means changes all the simulated detection signals changed by the all signal changing means to all L levels.
When input to the PRM unit, each LPRM signal sent from all LPRM units is individually collected to
RM determining means, based on all LPRM signals collected by the data collecting means and the predetermined local output value,
Since it is determined whether or not all LPRM units are abnormal, it is possible to further shorten the time required for the linearity test of LPRM units at startup and for periodic inspections and to save labor, thus improving plant operation efficiency. Can be improved.

Further, in the invention according to claim 3, the history abnormality determining means stores each LPRM signal collected by the data collecting means according to claim 1 or 2 as a current value, and this time, Since the value is compared with the last value stored last time to determine whether there is an abnormality,
In addition to the action corresponding to claim 1 or claim 2, the reliability of the test can be improved.

In the invention according to claim 4, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units, and the second parameter collecting means collects the LPRM gain. The parameter collection means collects the APRM gain of the APRM unit,
The simulated signal calculation means generates an APRM signal having a predetermined average output value based on each LPRM gain collected by the first parameter collection means and the APRM gain collected by the second parameter collection means. The set value of the simulated detection signal of each LPRM unit is calculated individually, and the simulated signal input means replaces the in-reactor output signal of the detector with an individual simulation based on each set value calculated by the simulated signal calculation means. The detection signal is input to each LPRM unit, and when the simulated detection signal is input to each LPRM unit by the simulation signal inputting unit, the data collecting unit sends out the APRM unit connected to each LPRM unit. The APRM signal is collected, and the APRM judging means collects the APRM signal collected by the data collecting means.
Since it is determined whether or not the APRM unit to be tested is abnormal based on the M signal and the predetermined average output value, it is possible to reduce the time and work required for the linearity test of the APRM unit at the time of start-up or periodic inspection. It is possible to save labor and improve the operation efficiency of the plant.

Furthermore, the invention corresponding to claim 5 is the first aspect.
Parameter collecting means of each LPRM unit,
The LPRM gain of each LPRM unit connected to the APRM unit to be tested is collected, the second parameter collecting means collects the APRM gain of the APRM unit, and the third parameter collecting means calculates the core flow rate of the APRM unit. The first simulated signal calculating means collects the coefficients, and each LP collects by the first parameter collecting means.
Based on the RM gain and the APRM gain collected by the second parameter collecting means, the set value of the simulated detection signal of each LPRM unit is individually calculated so as to generate an APRM signal showing a predetermined average output value, The first simulated signal input means inputs an individual simulated detection signal based on each set value calculated by the simulated signal calculation means to each LPRM unit in place of the in-furnace output signal of the detector, and the second simulated signal input means The simulated signal calculation means is based on each LPRM gain collected by the first parameter collection means, the APRM gain collected by the second parameter collection means, and the core flow rate calculation coefficient collected by the third parameter collection means. Then, the set value of the simulated flow rate detection signal is calculated so as to generate the FLOW signal indicating the predetermined in-furnace flow rate value, and the second simulated signal is input. The stage inputs the simulated flow rate detection signal based on the set value calculated by the second simulated signal calculation means to the APRM unit in place of the core flow rate detection signal of the flow meter, and the data collection means causes the first and first When each simulated detection signal and simulated flow rate detection signal are input by the simulated signal input means 2 of F, the F sent from the APRM unit concerned.
At the time of start-up, the LOW signal is collected, and the APRM determination means determines whether or not the APRM unit under test is abnormal based on the FLOW signal collected by the data collection means and the predetermined core flow rate value. It is possible to shorten the time required for the linearity test of the FLOW signal of the APRM unit such as periodical inspection and save labor, and thus improve the operation efficiency of the plant.

In the invention according to claim 6, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units, and the second parameter collecting means collects the LPRM gain. The parameter collection means collects the APRM gain of the APRM unit,
The simulated signal calculation means generates an APRM signal having a predetermined average output value based on each LPRM gain collected by the first parameter collection means and the APRM gain collected by the second parameter collection means. The set value of the simulated detection signal of each LPRM unit is calculated individually, and the simulated signal input means replaces the in-reactor output signal of the detector with an individual simulation based on each set value calculated by the simulated signal calculation means. A detection signal is input to each LPRM unit, and when the trip information collecting unit inputs each simulation detection signal to each LPRM unit by this simulation signal input unit, the APR connected to each LPRM unit.
Collect the trip occurrence information sent from the M unit,
When the trip information collecting means collects the trip occurrence information, the APRM judging means judges whether or not the APRM unit is abnormal by comparing it with a predetermined trip setting reference value, and the setting changing means collects the trip information. When the trip occurrence information is not collected by the means, the predetermined average output value in the simulated signal calculating means is updated toward the trip setting reference value in a unit smaller than the minimum measurement resolution of the APRM unit, so at the time of start-up or periodic inspection, etc. Shortens the time required for the trip test and saves labor, thus improving the operating efficiency of the plant.
By generating a simulated signal that is difficult to input manually,
The quality of the system can be improved.

Further, in the invention according to claim 7, as the setting changing means according to claim 6, when the trip occurrence information is not collected by the trip information collecting means, a predetermined average output value in the simulated signal calculating means is set. When the deviation from the trip setting reference value is larger than the predetermined change unit, the function has the function of updating the predetermined average output value toward the trip setting reference value in the predetermined change unit. In addition, the time taken for the trip test can be significantly shortened.

In the invention corresponding to claim 8, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units, and the second parameter collecting means collects the LPRM gain. The parameter collection means collects the APRM gain of the APRM unit,
The third parameter collection means collects the core flow rate calculation coefficient of the APRM unit, and the simulated flow rate signal calculation means is the first
Each LPRM gain collected by the parameter collecting means of the above, APR collected by the second parameter collecting means
Based on the M gain and the core flow rate calculation coefficient collected by the third parameter collecting means, the set value of the simulated flow rate detection signal is calculated so as to generate the FLOW signal for generating the predetermined trip set value, and simulated. The flow rate signal input means inputs a simulated flow rate detection signal based on the set value calculated by the simulated flow rate signal calculation means into the APRM unit instead of the core flow rate detection signal of the flow meter, and the trip set value collection means simulates. When the simulated flow rate detection signal is input by the flow rate signal input means, the trip set value is collected from the APRM unit, and the simulated signal calculation means calculates the trip set value and simulated flow rate signal collected by the trip set value collection means. When the trip setting value corresponding to the FLOW signal calculated by the means matches, the first parameter collecting means Each was collected LPRM gain and the second
Based on the APRM gain collected by the parameter collecting means, the set value of the simulated detection signal of each LPRM unit is individually calculated so as to generate an APRM signal showing a predetermined average output value, and the simulated signal input means Instead of the in-furnace output signal of the detector, an individual simulated detection signal based on each set value calculated by the simulated signal calculation means is used for each L.
After inputting into the PRM unit, the trip information collecting means uses the simulated signal input means to convert each simulated detection signal into each LPRM.
When the trip occurrence information transmitted from the APRM unit connected to each LPRM unit is collected when the trip information is input to the unit, and when the trip occurrence information is collected by the trip information collecting means, the trip occurrence information is collected,
By comparing with the predetermined trip set value, it is determined whether or not the APRM unit is abnormal, and the setting changing means,
When trip occurrence information is not collected by the trip information collection means, the predetermined average output value in the simulated signal calculation means is updated in a predetermined unit toward the trip setting reference value, so the trip setting value is fixed during the trip test. It is possible to improve the quality of the system and shorten the test time by generating a simulation signal that is difficult to input manually.

Further, the invention according to claim 9 has a control rod / detector correspondence storage means in which the correspondence between each control rod and each detector is stored, and the detector retrieval means has a certain control rod. Is selected, the control rod / detector correspondence storage means is referred to search for each detector corresponding to this control rod, and the first parameter collecting means selects the detector search means of each LPRM unit. Each connected L of each searched detector
The LPRM gain of the PRM unit is collected, and the second parameter collecting means collects the APRM gain from the APRM unit connected via the LPRM unit to each detector different from the searched detector, The simulated signal calculation means is an L indicating a predetermined local output value based on the LPRM gain collected by the first parameter collection means.
The setting value of the simulated detection signal is calculated so as to generate the PRM signal, and the first simulated signal input means replaces the in-furnace output signal of each detector searched by the detector search means with the first simulated signal input means.
The simulated detection signal based on the set value calculated by the simulated signal calculating means of is input to each corresponding LPRM unit, and the second simulated signal calculating means receives the LPRM gain and the second LPRM gain collected by the first parameter collecting means. AP indicating an average output value calculated from a predetermined RBM gain based on the APRM gain collected by the parameter collecting means
The setting value of the simulated detection signal is calculated so as to generate the RM signal, and the second simulated signal input means substitutes the in-furnace output signal of each detector different from each detector searched by the detector search means. Then, when the simulated detection signal based on the set value calculated by the second simulated signal calculation means is input to each corresponding LPRM unit, the selection control rod signal input means outputs the simulated detection signal by the second simulated signal input means. When input to each LPRM unit, a selection control rod signal for selecting a control rod is input to the RBM unit, and the RBM value calculation means obtains the average value of each simulated detection signal input by the simulated signal input means. The RBM gain is calculated on the basis of the average value and the APRM signal corresponding to the predetermined RBM gain, and the RBM value is calculated based on the calculation result. Selection control rod signal by the input means R
When input to the BM unit, the RBM unit outputs the RB
The M value is collected, the RBM determination means compares the RBM value calculated by the RBM value calculation means with the RBM value collected by the RBM value collection means, and when the two values do not match, the RBM unit is determined to be abnormal. Since the determination is made, it is possible to shorten the time required for the operation test of the RBM unit at the time of start-up, periodic inspection, etc. and to save the labor of the work, thereby improving the operation efficiency of the plant.

According to a tenth aspect of the present invention, the control rod / detector correspondence storage means according to the ninth aspect stores the correspondence information between the control rods and the detectors including position information. When the display output means retrieves each detector corresponding to the control rod to be tested from the control rod / detector correspondence storage means by the detector retrieval means, based on the retrieval result, the control Since the position information of the rod and each of the detectors is displayed and output, in addition to the action corresponding to claim 9, the correspondence between the control rod and each of the detectors can be visually confirmed, thereby improving the reliability. it can.

[0042]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing a configuration in which the test apparatus according to the first embodiment of the present invention is applied to a digital output area monitor, and FIG. 2 explains a concrete hardware configuration of this test apparatus. FIG. 14 is a schematic diagram for doing so, and the same reference numerals are given to the digital output area monitor having the same configuration as in FIG. 13, and the detailed description thereof will be omitted.

The test apparatus 20 comprises a host computer 21, an LPRM / FLOW signal generator 22, a data acquisition / control unit 23 and a printer 24.

Here, the host computer 21 uses the LPRM / FLO as a simulated detection value of the in-furnace output or the in-furnace flow rate.
It has a function of setting in the W signal generator 22 and a function of processing the data given from the data collection / control unit 23, and specifically executes the processing in the procedure shown in each flowchart described later. In addition, the host computer 21 has a storage medium such as a hard disk and a display device (not shown), and stores the past test results in this storage medium. Further, as shown in FIG. 3, the control rod position information and the detector are detected. Is stored as a position coordinate table, which can be displayed and output as a control rod matrix diagram as shown in FIG. 4, for example.

The LPRM / FLOW signal generator 22 generates a simulated signal based on the value set by the host computer 21, and here, as shown in FIG. The / A converter 22a is connected, and each D / A converter 22a is connected to the LPRM unit 3 via the V / I converter 22b. Also, LP
In the RM / FLOW signal generator 22, the multiplexer 22c connected to the LPRM unit 3 and the APRM unit 4 is connected to the expansion bus via the A / D converter 22d.

The data collection / control unit 23 uses the APR
The APRM value received from the M unit 4 is provided to the host computer 21, and as shown in FIG.
I / F 23a and CPU connected to the APRM unit 4
23b, the memory 23c, the I / F 23d, and the I / F 23e are connected via a bus 23f.
23 a is connected to the host computer 21 via the serial transmission line 25.

The printer 24 is the host computer 21.
The data sent from the printer is printed out.

Next, the operation of such a test apparatus will be described.

(Linearity test of LPRM unit 3) As shown in FIG.
Set the default value of 11 times and set the test count m to 1
An initialization process for setting the number of times is performed (ST1).

Next, the host computer 21 uses the LPRM to obtain the LPRM gain of the LPRM unit 3 to be tested.
A gain request is given to the data acquisition / control unit 23.
The data collection / control unit 23 gives this LPRM gain request to the APRM unit 4 to which the LPRM unit 3 to be tested belongs. The APRM unit 4 gives this LPRM gain request to the LPRM unit 3 to be tested, and collects the LPRM gain sent from the LPRM as data.
It is given to the control unit 23.

The data collection / control unit 23 gives the LPRM gain fetched from the output area monitor to the host computer 21 (ST2).

The host computer 21 stores this LPRM gain. Further, the host computer 21 sets the number of times of linearity measurement n (ST3). The default value of the number of measurements n, 11 times, is used as it is.

The host computer 21 sets a simulated LPRM value at each measurement point (ST4).
In this case, the LPRM output 0 to 125% is divided into 11, so the LPRM values at the measurement points are 0.0, 12.5, 25.0,
37.5, 50.0, 62.5, 75.0, 87.5, 100.0, 112.5, 125.
It becomes 0%. If the error range of this LPRM value is 1% of full scale, for example, in the case of maximum output, LPR
The standard value of M value is 125.0 ± 1.25%.

Next, the host computer 21 selects the LPRM value based on the current measurement point, and the LPRM value is selected.
Based on the RM value and the LPRM gain given in step ST2, as shown in the following equation (1), the LPRM
The input current value corresponding to the value is calculated (ST5).

Input current value = (maximum current value of LPRM detector / LPRM gain) × (LPRM value / 125%) [μA] (1) For example, the maximum current value of the LPRM detector is 3000 μA, and LPRM
When the gain is 2 and the LPRM value obtained as the output is 12.5%, the input current value = (3000 μA / 2) × (12.5
% / 125%) = 150 μA.

The expression (1) is obtained from the relationship of the following expression (2).

LPRM value = ((input current × LPRM gain) / 3000 μA) × 125 [%] (2) After the calculation of the input current value, the host computer 21 outputs D corresponding to the current signal having this input current value. / A converter 22
Calculate the set value of a, and set this value via the expansion bus to D
It is set in the / A converter 22a (ST6).

The D / A converter 22a sets this set value to D / A.
It is A-converted and given to the V / I converter 22b. The V / I converter 22b converts the D / A converted set value into a current signal,
This current signal is output to the LPRM unit 3 in the output area monitor.
To send to.

In the LPRM unit 3, the above (2)
As shown in the equation, this current signal is converted into% and digitized to create an LPRM signal, and the LPRM signal is sent to the APRM unit 4. APRM unit 4
Collects data from the LPRM signal in the test equipment 20.
It is sent to the control unit 23.

The data collection / control unit 23 uses this L
The PRM signal is taken in (ST7) and this LPRM
The signal is given to the host computer 21 via the serial transmission line 25.

The host computer 21 collects the collected L
PRM signal and LPRM set in step ST4
When the LPRM value of the collected LPRM signal is within the standard value range, it is determined to be normal (ST
8) Furthermore, the relationship between the test count m and the number of measurements n is m
It is determined whether or not> n (ST9).

If the result of determination in step ST9 is that m> n, the test count m is less than the number of times of measurement n, and therefore the linearity test is continued, so the test count m is updated by incrementing by "+1" ( ST10), the process from step ST5 is executed for the next measurement point.

As a result of the determination in step ST9, m>
When it is not n, the test count m and the number of times of measurement n are equal, and the test is completed for all the measurement points. Therefore, the linearity test is completed for the LPRM unit 3 to be tested.

As a result, the LP can be
It is possible to shorten the time required for the linearity test of the RM unit and save labor, thereby improving the operating efficiency of the plant.

(Linearity Test of APRM Unit 4) Next, the linearity test of the APRM unit 4 will be described with reference to FIG.

The host computer 21 uses the test target A
The above steps ST1 to ST4 are executed for all LPRM units 3 belonging to the PRM unit 4,
The input current value is calculated individually by the equation (3) (ST
5). The APRM gain and the LPRM gain in the equation (3) are requested and fetched in step ST2 in the same manner as described above.

Input current value = (maximum current value of LPRM detector / LPRM gain / APRM gain) × (APRM value / 125%) [μA] (3) Here, for example, the maximum current value of the LPRM detector is Input current value = (3000μA / 2/2) x (12.5%) when APRM gain is 2, LPRM gain is 2 and APRM value obtained as output is 12.5% when 3000μA
/ 125%) = 75 μA.

However, since the LPRM gain differs depending on the individual LPRM unit 3, this input current value is the same for all LP currents.
It is calculated individually for the RM unit 3.

After calculating each input current value, the host computer 21 calculates a set value for each D / A converter 22a for generating each current signal of each input current value, and sets these set values respectively. Set in the D / A converter 22a (ST
6).

As a result, the respective current signals are simultaneously and individually sent from the respective D / A converters 22a to the respective LPRM units 3 in the output area monitor via the V / I converters 22b.

Each LPRM unit 3 has its own L
The PRM signal is given to the APRM unit 4. The APRM unit 4 calculates the APRM value based on the LPRM value indicated by each LPRM signal, as shown in the following equation (4).

APRM value = ((sum of operating LPRM values) / (number of operating LPRM channels)) × APRM gain [%] (4) Thereafter, the APRM unit 4 outputs the APRM signal indicating this APRM value. Is sent to the data collection / control unit 23 in the test apparatus 20.

Thereafter, as described above, the data collection / control unit 23 takes in this APRM signal and (ST
7), giving to the host computer 21. The host computer 21 tests the linearity of the APRM unit 4 to be tested based on the APRM signal thus obtained (ST8 to ST10).

As a result, the AP at the time of start-up or periodic inspection is
It is possible to shorten the time required for the linearity test of the RM unit and save labor, thereby improving the operating efficiency of the plant.

(Linearity test of core flow rate signal) Next, AP
Similarly, the linearity test of the FLOW signal in the RM unit 4 will be described with reference to FIG.

A current signal is applied to each LPRM unit 3 belonging to the APRM unit 4 to be tested, similarly to the linearity test of the APRM unit 4, and the APRM unit 4 is tested.
From the APRM signal to the data collection / control unit 23.

Here, the data collection / control unit 23
Adds a time constant of 6 seconds to the APRM signal output from the APRM unit 4 (waits for 6 seconds from the step response) to obtain a TPM value, and gives this TPM value to the host computer 21.

The host computer 21 calculates the input current value based on the TPM value as shown in the following equation (5) (ST5).

Input current value = f ⁻¹ (FLOW value, TPM value, a, b, c, d, e, f, k) [mA] (5) For example, TPM value is 100%, a = 11.029, b = 55.596, c
= 14.592, d = 1.193, e = -3.134 × 10 ^-3 , f = 6.8 × 1
When 0 ⁻⁶ , k = 1, and the FLOW value obtained as the output is 89%, the input current value = 11.0 mA.

After the calculation of the input current value, the host computer 21 sends D / s corresponding to the current signal having this input current value.
The setting value of the A converter 22a is calculated, and this setting value is D / A
Set in the converter 22a.

The D / A converter 22a sets this set value to D / A.
It is A-converted and given to the V / I converter 22b. The V / I converter 22b converts the D / A converted set value into a current signal,
This current signal is output to the APRM unit 4 in the output area monitor.
To send to.

Upon receiving this current signal, the APRM unit 4 calculates the FLOW value based on the following equation (6) and calculates the FLOW value.
The LOW signal is sent to the data collection / control unit 23 in the test apparatus 20.

FLOW value = f (input current value, TPM value, a, b, c, d, e, f, k) [%] (6) where a to f and k are core flow rate calculation coefficients. .

Thereafter, as described above, the data collection / control unit 23 fetches this FLOW signal and (ST
7), giving to the host computer 21. Based on the FLOW signal thus obtained, the host computer 21 tests the linearity of the core flow rate signal conversion function of the APRM unit 4 to be tested (ST8 to ST).
10).

As a result, at the time of start-up and periodic inspections, AP
It is possible to shorten the time required for the linearity test of the FLOW signal of the RM unit and save labor, and thus improve the operating efficiency of the plant.

(Trip Test) Next, a trip test concerning the generation / release of the trip signal in the APRM unit 4 will be described with reference to FIG. The occurrence and cancellation of the trip are different in that they occur when the input current value rises and are canceled when the input current value falls, and since they are essentially the same operations, the trip occurrence will be described here as an example.

In the test apparatus 20, the above-mentioned APR
Similar to the linearity test of the M unit 4, the data collection / control unit 23 obtains the APRM gain from the APRM unit 4 to be tested and the LPRM gain of each LPRM unit 3 belonging to this APRM unit 4. Also, trip set point data is obtained from this APRM unit 4 (ST11). In addition, these APRM gain, each LP
The data of RM gain and trip set point are the same as above.
It is given to the host computer 21.

Next, in the test apparatus 20, the host computer 21 uses each of the LPRs by using the above equation (1).
The input current value is individually calculated for the M unit 3 (S
T12).

After the calculation of each input current value, the host computer 21 calculates the set value for each D / A converter 22a for generating each current signal of each input current value, and sets these set values respectively. Set in the D / A converter 22a (ST1
3).

As a result, similarly to the above, each current signal is sent from the test apparatus 20 to each LPRM unit 3 in the output area monitor.

In the output area monitor, the APR
LPR that M unit 4 receives from each LPRM unit 3
The APRM signal is generated based on the M signal, and the trip information signal indicating whether or not a trip has occurred is generated based on the APRM signal, and the APRM signal and the trip information signal are collected in the data collection / control unit in the test apparatus 20. It sends to 23.

In the test apparatus 20, the data collection / control unit 23 takes in the APRM signal and the trip information signal (ST14) and outputs both signals to the host computer 2.
Give to 1.

Of the two signals, the host computer 21 determines whether or not a trip has occurred based on the trip information signal (ST15). When no trip occurs, the host computer 21 returns to step ST12 to increase the input current value and trip. Continue the test. At this time, in step ST12, the input current value is increased by the minimum unit (for example, 0.1%) of the measurement resolution of the APRM unit 4.

If the result of determination in step ST14 is that a trip has occurred, the APRM value indicated by the tripped APRM signal is referenced to determine whether this APRM value is within the standard value range from the trip set point. Is confirmed (ST16).

As a result, the time required for a trip test such as start-up or periodic inspection can be shortened and the labor can be saved. Therefore, the operation efficiency of the plant can be improved, and a simulated signal which is difficult to input manually is generated. By doing so, the quality of the system can be improved.

(Operation test of RBM unit) Next, RB
The operation test of the M unit will be described. In addition, this R
The BM operation test will be described with reference to the configuration diagram of FIG. 7 and FIG. 8 from the viewpoint of easy understanding.

In the test apparatus 20, as shown in FIG. 8, when the control rod address indicating the control rod to be tested is set by the host computer 21 (ST21), the control rod address shown in FIG. The detector around the control rod is searched from the position coordinate table of (ST22), and the search result is displayed as a control rod matrix diagram as shown in FIG.

Next, in the test apparatus 20, the LPRM unit 3 corresponding to the detector around the selected control rod is used.
A current signal obtained from the LPRM gain is sent toward (ST23).

Further, in the test apparatus 20, the host computer 21 controls the data collection / control unit 23 to give the RBM unit an APRM signal belonging to a section other than the control rod to be tested. Note that this A
The PRM signal is calculated back from the RBM gain desired to be set in advance in the test.

Further, in the test apparatus 20, a selection control rod signal for selecting the control rod to be tested is given to the RBM unit (ST24).

Here, the test apparatus 20 uses the RRM unit 3 as shown in the equation (8) based on the current signal for the LPRM unit 3 and the APRM signal of another section, which are given to the RBM unit.
While calculating the BM gain, as shown in the equation (9),
An RBM value (standard value) is calculated from this RBM gain (ST25).

RBM gain = APRM value of other section / average value of LPRM value around control rod (8) However, the expression (8) is expressed as “APRM value of other section> L around control rod”.
It is true only in the case of the relation of “average value of PRM values”. In addition,
If “the APRM value of the other category ≦ the average value of the LPRM values around the control rod”, the RBM gain = 1. Also, RBM value = RBM gain × average value of peripheral LPRM values (9) Next, the test apparatus 20 takes in the RBM value from the RBM unit (ST26).

The test apparatus 20 determines whether or not the RBM value fetched in step ST26 matches the RBM value calculated in step ST25 (ST27). If they match, it is normal or non-matching. If it is abnormal, the RBM test ends.

It is possible to shorten the time required for the operation test of the RBM unit at the time of start-up, periodical inspection, etc., and save labor, thereby improving the operating efficiency of the plant.

Further, by displaying the control rod matrix diagram, the correspondence between the control rod and each detector can be visually confirmed,
Therefore, reliability can be improved.

(Second Embodiment) Next, a second embodiment of the present invention will be described.
The test apparatus according to the embodiment will be described with reference to FIGS. 1 and 2. In addition to the effects of the first embodiment, this test apparatus mainly aims at shortening the test time. As a specific configuration, the hardware is similar to that of the first embodiment. Since they have the same configuration, detailed description thereof will be omitted, and only different parts in terms of software will be described here.

(Linearity Test of LPRM Unit 3) The linearity test of the LPRM unit 3 by the test apparatus according to the present embodiment will be described with reference to the flowchart of FIG. 9 partially overlapping the flowchart of FIG. Unlike the first embodiment, this test apparatus 20 has a step of confirming that there is no misconnection or interference (crosstalk) with each other in each channel toward each LPRM unit 3, and obtains this confirmation. Then, the linearity is tested by applying a current signal to all channels at the same time.

It is now assumed that the host computer 21 ends step ST2 and fetches the LPRM gain for each LPRM unit 3 as described above.

The host computer 21 uses the loaded LPs.
All LPRM units 3 have the same LP using RM gain
Each input current value is calculated so as to output an LPRM signal having an RM value (ST2-2). The same LPRM value is 0%, for example.

After calculating each input current value, the host computer 21 calculates a set value for each D / A converter 22a for generating each current signal of each input current value, and sets these set values respectively. Set in the D / A converter 22a (ST2-
3).

As a result, similarly to the above, each current signal is transferred from the D / A converter 22a in the test apparatus 20 to the V / I converter 2 in the test apparatus 20.
Each LPRM unit 3 in the output area monitor via 2b
Sent to

On the other hand, in the output area monitor, each LP
The RM unit 3 individually performs LP based on each current signal.
Generate an RM signal and assign each of these LPRM signals to the corresponding A
It is sent to the PRM unit 4.

The APRM unit 4 generates an APRM signal based on these LPRM signals and
The M signal and the APRM signal are sent to the data collection / control unit 23 in the test apparatus 20.

The data acquisition / control unit 23 takes in these LPRM signals and APRM signals (ST2-
4) Give to the host computer 21.

The host computer 21 determines each LPRM value indicated by each LPRM signal and the APRM indicated by the APRM signal.
The value is stored in the storage medium.

Next, in the test apparatus 20, the setting of the D / A converter 22a is changed so that the host computer 21 changes only the current signal of a certain channel. For example,
Now, all channels have the same LPRM value of 0%,
Only one channel is set and changed to the LPRM value of 125% (ST2-5).

Thereafter, as described above, the data collection / control unit 23 determines that the LPRM signals of all channels and the A / P signal.
Capture the PRM signal from the output area monitor (ST2-
6) Give to the host computer 21.

The host computer 21 uses each of these LPs.
Each LPRM value indicated by the RM signal and A indicated by the APRM signal
It is individually confirmed whether the PRM value is within the range of the standard value (ST2-7). It should be noted that this step ST2-7 is for confirming that there is no crosstalk on the changed channel.

After the confirmation is completed, the setting changed in step ST2-5 is returned to the original setting, and it is judged whether or not steps ST2-5 to ST2-7 described above have been completed for all channels (ST). If not, step S to confirm that there is no crosstalk on other channels.
When the process returns to T2-5 and all channels are completed, the process proceeds to step ST3 similar to the above.

Hereinafter, steps ST3 to ST1 similar to the above.
0 is executed, but in the present embodiment, unlike the first embodiment, each LPRM unit 3 is simultaneously increased or decreased by simultaneously increasing or decreasing each LPRM value of all channels.
Test the linearity of.

As described above, since the LPRM values of all the channels are simultaneously changed, the test time can be remarkably shortened. Further, even in such a test method, it is confirmed that there is no crosstalk and no erroneous connection for all channels, so the effectiveness of the test can be maintained.

(Linearity Test of APRM Unit 4) Next, the linearity test of the APRM unit 4 by the apparatus of this embodiment will be described. Basically, like the linearity test of the LPRM unit 3 in the present embodiment, after confirming that there is no crosstalk, the setting of each current signal is simultaneously changed to test the linearity. However, the test subject is APR
Since it is the M unit 4, even when confirming that there is no crosstalk, it is not necessary to change the setting of the current signal for each channel, but for each L belonging to the APRM unit 4 to be tested.
This is performed for each of a plurality of channels reaching the PRM unit 3.

As a result, similarly to the above, each LPRM value of each channel is changed simultaneously, so that the test time can be significantly shortened. Also, similarly, since it has been confirmed that there is no crosstalk and no misconnection for each channel, the effectiveness of the test can be maintained.

(Trip Test) Next, a trip test by the apparatus of this embodiment will be described.

That is, the apparatus of the present embodiment is intended to shorten the test time. Specifically, in step ST12 of the above-mentioned trip test, the input current value at a value far from the trip set point is specified. Is changed with a large value, and the input current value is changed with a fine value at a value close to the trip set point.

For example, as shown in FIG. 10, when the trip set point is 90%, it is 80% lower than the trip set point.
The input current value is changed in 10% units up to 89%, 1% units up to 89%, 0.1% units up to 99%, and 0.01% units thereafter. Change the unit of change corresponding to the relationship with the point.

Since 0.1% is the minimum measurement resolution of the LPRM unit 3, there is no big error even if 0.1% is the minimum change amount of the input current value, but from the viewpoint of improving the measurement accuracy. In the device of the present embodiment, the input current value is changed in the vicinity of the trip set point by a value smaller than 0.1%.

Thus, the test time can be shortened and the measurement accuracy can be improved.

(Third Embodiment) Next, the third embodiment of the present invention will be described.
The test apparatus according to the embodiment will be described with reference to FIG. Note that this test apparatus is mainly for facilitating the trip test, and since the specific configuration is the same as that of the first embodiment in terms of hardware, detailed description thereof is omitted. , Here, only the different parts in terms of software will be described.

(Trip Test) A trip test by the test apparatus according to this embodiment will be described with reference to the flowchart of FIG. This test apparatus 20 has a step of calculating the input current value of the FLOW signal for controlling the trip set point, unlike FIG. 6 according to the second embodiment, and sets the calculated input current value. Then, the test apparatus 20
The trip test is executed after confirming the agreement between the trip set point inside and the trip set point inside the output area monitor.

That is, in this test apparatus 20, the trip set value fluctuates according to the FLOW value, and the FLOW value becomes TPM.
By utilizing the fact that it has the property of varying according to the value, the FLOW value corresponding to the current TPM value fetched from the output area monitor is obtained, and this FLOW value is given to the output area monitor. It has a function to fix the trip set value to the current value.

Now, it is assumed that the host computer 21 completes the above-mentioned step ST11 and obtains data of LPRM gain, APRM gain and trip set value.

Next, the host computer 21 takes in the TPM value which is the basis of the trip setting value on the current output area monitor side from the APRM unit 4 in the output area monitor, and uses this TPM value (5). The input current value of the FLOW signal is calculated by the equation (ST11-2), this input current value is set in the D / A converter 22a, and this FLOW signal is set to A
It is given to the PRM unit 4. That is, the host computer 21 calculates a FLOW signal (corresponding to the current value) for fixing the trip set value on the output area monitor side to the current value, and supplies this to the APRM unit 4.

Thereafter, the host computer 21 determines whether or not the trip set value corresponding to the FLOW signal of the calculated input current value and the trip set value obtained from the APRM unit 4 match (ST11-3). ), If the determination result is “No” and the two do not match, the process returns to step ST11-2 to make the two match, and if the determination result shows the two match, the process proceeds to step ST12 and the trip test is performed as described above. In order to increase or decrease the LPRM value.

When no trip occurs in step ST15, the process returns to step ST11-2 to continue the trip test while fixing the trip set value.

As described above, in the trip test, the system quality can be improved and the test time can be shortened by generating a simulation signal for fixing the trip set value, which is difficult to input manually. .

(Fourth Embodiment) Next, the fourth embodiment of the present invention will be described.
The test apparatus according to the embodiment will be described. This test apparatus aims to create a database of test results, and since the specific configuration is the same as that of the first embodiment in terms of hardware, its detailed description is omitted here. Only the parts that differ in terms of software will be described.

The test apparatus 20 is the same as the LPRM unit 3 and the APR in the first to third embodiments described above.
The test results of the M unit 4 linearity test, trip test and RBM test are stored in a hard disk or the like, and the present test result and the previous test result are compared. In some cases, even if both test results are within the standard values, an abnormality is detected.

For example, when the previous test result is near the upper limit of the standard value and the test result this time is near the lower limit of the standard value, even if both test results are within the range of the standard value, they are between the two. An abnormality can be detected by the significant error in.

In parallel with this, as shown in FIG. 12, even when the test result of this time is simply out of the range of the standard value shown by the broken line, the abnormality can be detected as described above.

In this way, even within the standard value range,
When the value is significantly different from the previous value, an abnormality in the data history can be detected, so that the reliability of the test can be improved.

Besides, the present invention can be variously modified and implemented without departing from the gist thereof.

[0144]

As described above, according to the invention of claim 1, the parameter collecting means collects the LPRM gain of the LPRM unit to be tested among the LPRM units, and the simulated signal calculating means uses this parameter. Based on the LPRM gain collected by the collecting means, a set value of the simulated detection signal is calculated so as to generate an LPRM signal showing a predetermined local output value, and the simulated signal input means converts the set value into the in-reactor output signal of the detector. Instead, the simulated detection signal based on the set value calculated by the simulated signal calculation means is used as the LPRM to be tested.
When the simulated detection signal is input to the unit and the simulated detection signal is input to the LPRM unit by the simulated signal input unit, the LPR transmitted from the LPRM unit.
At the time of start-up, the M signal is collected, and the LPRM determination means determines whether or not the LPRM unit to be tested is abnormal based on the LPRM signal collected by the data collection means and the predetermined local output value. It is possible to provide an output area monitor test device capable of improving the operation efficiency of the plant by shortening the time required for the linearity test of the LPRM unit such as a periodical inspection and saving labor.

According to the invention of claim 2, the parameter collecting means collects LPRM gains of all LPRM units, and the simulated signal inputting means collects the LPRM gains obtained by the parameter collecting means. All LP
In the RM unit, simulated detection signals are individually calculated so as to generate LPRM signals having the same value, and all LPs are calculated.
The simulated signal changing means, which is supplied to the RM unit, sends the L signal sent from all LPRM units by the simulated signal input means.
When the PRM signals show approximately the same value, one LP
Change only the simulated detection signal of the RM unit to a different value,
When only one simulated detection signal is changed by this simulated signal changing means, the incorrect connection detecting means determines whether or not there is an incorrect connection by checking whether or not the LPRM signal of this LPRM unit shows the changed value, and causes interference. When the detection means changes only the simulated detection signal of one LPRM unit by this misconnection detection means, the LPR of another LPRM unit is detected.
The presence or absence of interference is determined by determining whether or not the M signal is changed, and the all signal changing means determines that there is no incorrect connection by the incorrect connection detecting means for all LPRM units.
When the interference detecting means determines that there is no interference, all simulated detection signals are changed to a predetermined local output value while maintaining the same relationship with each other, and the data collecting means is changed by the all signal changing means. Simulated detection signal is all LPRM
When input to the unit, each LPRM signal transmitted from all LPRM units is individually collected, and all LPRM determination means collect all LPs collected by this data collection means.
Based on the RM signal and the predetermined local output value, all LPs
Since it determines whether or not the RM unit is abnormal, it further shortens the time required for the linearity test of the LPRM unit during start-up, periodic inspections, etc., and saves labor, thereby improving the operating efficiency of the plant. It is possible to provide an output area monitor that can.

Further, according to the invention of claim 3, the history abnormality judging means stores each LPRM signal collected by the data collecting means of claim 1 or 2 as a current value and Since the presence / absence of abnormality is determined by comparing both the previously stored value and the previously stored value, the reliability of the test can be improved in addition to the effect of claim 1 or claim 2.

Further, according to the invention of claim 4, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units, and the second parameter collecting means collects the LPRM gain of the second LPRM unit. The parameter collecting means collects the APRM gain of the APRM unit, and the simulated signal calculating means based on each LPRM gain collected by the first parameter collecting means and the APRM gain collected by the second parameter collecting means, The set value of the simulated detection signal of each LPRM unit is individually calculated so as to generate an APRM signal showing a predetermined average output value, and the simulated signal input means replaces the in-reactor output signal of the detector with the simulated signal. Individual simulated detection signals based on each set value calculated by the calculating means are input to each LPRM unit to collect data. When the simulated detection signal is input to each LPRM unit by the simulated signal input means, the stage collects the APRM signal sent from the APRM unit connected to each LPRM unit, and the APRM determination means collects this data. APR collected by collection means
Since it is determined whether or not the APRM unit to be tested is abnormal based on the M signal and the predetermined average output value, it is possible to reduce the time and work required for the linearity test of the APRM unit at the time of start-up or periodic inspection. It is possible to provide an output area monitor test device that can save labor and thus improve the operation efficiency of the plant.

Further, according to the invention of claim 5, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among each LPRM unit, and the second parameter collecting means collects the LPRM gain of each LPRM unit. The parameter collection means collects the APRM gain of the APRM unit,
The third parameter collecting means collects the core flow rate calculation coefficient of the APRM unit, and the first simulated signal calculating means collects each LPRM gain collected by the first parameter collecting means and the second parameter collecting means. Was A
AP showing a predetermined average output value based on PRM gain
The setting value of the simulated detection signal of each LPRM unit is individually calculated so as to generate the RM signal, and the first simulated signal input means calculates the simulated signal calculation means instead of the in-reactor output signal of the detector. The individual simulated detection signals based on the respective set values are input to the respective LPRM units, and the second simulated signal calculating means causes the LPRM gains collected by the first parameter collecting means and the second parameter collecting means. The set value of the simulated flow rate detection signal is calculated so as to generate the FLOW signal indicating the predetermined in-core flow rate value based on the APRM gain collected by the above and the core flow rate calculation coefficient collected by the third parameter collecting means. The second simulated signal input means, instead of the core flow rate detection signal of the flow meter, detects the simulated flow rate based on the set value calculated by the second simulated signal calculation means. The input to the APRM unit No., FLO data acquisition means, when each simulated detection signal and the simulated flow rate detection signal by the first and second simulation signal input means is input, sent from the APRM unit
Since the W signal is collected and the APRM judging means judges whether or not the APRM unit to be tested is abnormal based on the FLOW signal collected by the data collecting means and the predetermined core flow rate value, at the time of start-up. It is possible to provide an output area monitor test device capable of improving the operation efficiency of the plant by shortening the time required for the linearity test of the FLOW signal of the APRM unit such as periodical inspection and saving labor.

Further, according to the invention of claim 6, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units, and the second parameter collecting means collects the LPRM gain of the second LPRM unit. The parameter collecting means collects the APRM gain of the APRM unit, and the simulated signal calculating means based on each LPRM gain collected by the first parameter collecting means and the APRM gain collected by the second parameter collecting means, The set value of the simulated detection signal of each LPRM unit is individually calculated so as to generate an APRM signal showing a predetermined average output value, and the simulated signal input means replaces the in-reactor output signal of the detector with the simulated signal. An individual simulated detection signal based on each set value calculated by the calculation means is input to each LPRM unit, and trip information is input. Collecting means, when each simulated detection signal is input to each LPRM units by the simulation signal input means, connected to the respective LPRM units APRM
Collect the trip occurrence information sent from the unit, and
When the trip occurrence information is collected by the trip information collecting means, the PRM judging means judges whether or not the APRM unit is abnormal by comparing with the predetermined trip setting reference value, and the setting changing means collects the trip information. When the trip occurrence information is not collected by the means, the predetermined average output value in the simulated signal calculating means is updated toward the trip setting reference value in a unit smaller than the minimum measurement resolution of the APRM unit, so at the time of start-up or periodic inspection, etc. Shortens the time required for the trip test and saves labor, thus improving the operating efficiency of the plant.
By generating a simulated signal that is difficult to input manually,
It is possible to provide an output area monitor test device capable of improving the system quality.

Further, according to the invention of claim 7, as the setting changing means of claim 6, when trip occurrence information is not collected by the trip information collecting means, a predetermined average output value and trip setting in the simulated signal calculating means are set. When the deviation from the reference value is larger than the predetermined change unit, since it has a function of updating the predetermined average output value in the predetermined change unit toward the trip setting reference value, the same effect as in claim 6 is obtained. Thus, it is possible to provide an output area monitor test device that can significantly reduce the time required for a trip test.

In the invention corresponding to claim 8, the first parameter collecting means collects the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units, and the second parameter collecting means collects the LPRM gain of the second LPRM unit. The parameter collection means collects the APRM gain of the APRM unit,
The third parameter collection means collects the core flow rate calculation coefficient of the APRM unit, and the simulated flow rate signal calculation means is the first
Each LPRM gain collected by the parameter collecting means of the above, APR collected by the second parameter collecting means
Based on the M gain and the core flow rate calculation coefficient collected by the third parameter collecting means, the set value of the simulated flow rate detection signal is calculated so as to generate the FLOW signal for generating the predetermined trip set value, and simulated. The flow rate signal input means inputs a simulated flow rate detection signal based on the set value calculated by the simulated flow rate signal calculation means into the APRM unit instead of the core flow rate detection signal of the flow meter, and the trip set value collection means simulates. When the simulated flow rate detection signal is input by the flow rate signal input means, the trip set value is collected from the APRM unit, and the simulated signal calculation means calculates the trip set value and simulated flow rate signal collected by the trip set value collection means. When the trip setting value corresponding to the FLOW signal calculated by the means matches, the first parameter collecting means Each was collected LPRM gain and the second
Based on the APRM gain collected by the parameter collecting means, the set value of the simulated detection signal of each LPRM unit is individually calculated so as to generate an APRM signal showing a predetermined average output value, and the simulated signal input means Instead of the in-furnace output signal of the detector, an individual simulated detection signal based on each set value calculated by the simulated signal calculation means is used for each L.
After inputting into the PRM unit, the trip information collecting means uses the simulated signal input means to convert each simulated detection signal into each LPRM.
When the trip occurrence information transmitted from the APRM unit connected to each LPRM unit is collected when the trip information is input to the unit, and when the trip occurrence information is collected by the trip information collecting means, the trip occurrence information is collected,
By comparing with the predetermined trip set value, it is determined whether or not the APRM unit is abnormal, and the setting changing means,
When trip occurrence information is not collected by the trip information collection means, the predetermined average output value in the simulated signal calculation means is updated in a predetermined unit toward the trip setting reference value, so the trip setting value is fixed during the trip test. It is possible to provide an output area monitor test device capable of improving the quality of the system and shortening the test time by generating a simulated signal which is difficult to input manually.

Further, according to the invention of claim 9, there is provided control rod / detector correspondence storage means for storing the correspondence between each control rod and each detector, and the detector retrieval means has a certain control rod. Is selected, the control rod / detector correspondence storage means is referred to search for each detector corresponding to this control rod, and the first parameter collecting means selects the detector search means of each LPRM unit. Each connected LP of each searched detector
Collecting the LPRM gain of the RM unit, the second parameter collecting means collecting the APRM gain from the APRM unit connected via the LPRM unit to each detector different from the one searched for The simulated signal calculating means is the L collected by the first parameter collecting means.
LP showing a predetermined local output value based on the PRM gain
The setting value of the simulated detection signal is calculated so as to generate the RM signal, and the first simulated signal input means replaces the in-furnace output signal of each detector searched by the detector searching means with the first simulated signal. The simulated detection signal based on the set value calculated by the signal calculation means is input to each corresponding LPRM unit, and the second
The simulated signal calculation means of APR indicates an average output value calculated from a predetermined RBM gain based on the LPRM gain collected by the first parameter collection means and the APRM gain collected by the second parameter collection means.
The setting value of the simulated detection signal is calculated so as to generate the M signal, and the second simulated signal input means substitutes the in-furnace output signal of each detector different from each detector searched by the detector search means. Then, when the simulated detection signal based on the set value calculated by the second simulated signal calculation means is input to each corresponding LPRM unit, the selection control rod signal input means outputs the simulated detection signal by the second simulated signal input means. When input to each LPRM unit, a selection control rod signal for selecting a control rod is input to the RBM unit, and the RBM value calculation means obtains the average value of each simulated detection signal input by the simulated signal input means. The RBM gain is calculated based on the average value and the APRM signal corresponding to the predetermined RBM gain, the RBM value is calculated based on the calculation result, and the RBM value collecting means causes the selection control rod signal to be calculated. Selection control rod signals by the force means R
When input to the BM unit, the RBM unit outputs the RB
The M value is collected, the RBM determination means compares the RBM value calculated by the RBM value calculation means with the RBM value collected by the RBM value collection means, and when the two values do not match, the RBM unit is determined to be abnormal. Since the determination is made, it is possible to provide an output area monitor test device capable of improving the operation efficiency of the plant by shortening the time required for the operation test of the RBM unit at the time of start-up and periodical inspection and saving labor.

According to the tenth aspect of the invention, the control rod / detector correspondence storage means of the ninth aspect stores the positional information included in the correspondence between each control rod and each detector. ,
When the display output means retrieves each detector corresponding to the control rod to be tested from the control rod / detector correspondence storage means by the detector retrieval means, based on the retrieval result, the control rod and the relevant control rod are detected. Since the position information of each detector is displayed and output,
In addition to the effect of the ninth aspect, it is possible to provide an output area monitor test device capable of visually confirming the correspondence between the control rod and each detector, and thus improving reliability.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a configuration applied to a digital output area monitor according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining a specific hardware configuration of the test apparatus according to the same embodiment.

FIG. 3 is a schematic diagram showing a position coordinate table in the same embodiment.

FIG. 4 is a control rod matrix diagram in the same embodiment.

FIG. 5 is a flowchart for explaining the operation of the linearity test in the same embodiment.

FIG. 6 is a flowchart for explaining the operation of a trip test in the same embodiment.

FIG. 7 is a configuration diagram for explaining an operation test of the RBM unit according to the same embodiment.

FIG. 8 is a flowchart for explaining an operation test of the RBM unit according to the same embodiment.

FIG. 9 is a flowchart for explaining the operation of a linearity test by the test apparatus according to the second embodiment of the present invention.

FIG. 10 is a flowchart for explaining an operation of a trip test according to the same embodiment.

FIG. 11 is a flowchart for explaining the operation of a trip test by the test device according to the third embodiment of the present invention.

FIG. 12 is a schematic diagram showing storage of history data by the test apparatus according to the fourth embodiment of the present invention.

FIG. 13 is a schematic diagram showing a configuration in which a conventional test apparatus is applied to a digital output area monitor.

[Explanation of symbols]

 2 ... DPRNM. 3 ... LPRM unit. 4 ... APRM unit. 5 ... RBM unit. 20 ... Test apparatus. 21 ... Host computer. 22 ... LPRM / FLOW signal generator. 22a ... D / A converter. 22b ... V / I converter. 22c ... Multiplexer. 22d ... A / D converter. 23 ... Data collection / control unit. 23a, 23d, 23e ... I / F. 23b ... CPU. 23c ... memory. 23f ... bus. 24 ... Printer. 25 ... Serial transmission line.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuhiro Tanaka No. 1 Toshiba-cho, Fuchu-shi, Tokyo Toshiba Corporation Fuchu factory inside

Claims (10)

[Claims] 1. A nuclear reactor instrumentation system power range monitor equipped with a plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals and sending the LPRM signals. An output range monitor test device for performing the predetermined, based on the LPRM gain collected by the parameter collecting means and the LPRM gain collected by the parameter collecting means, The simulated signal calculation means for calculating the set value of the simulated detection signal so as to generate the LPRM signal indicating the local output value, and the setting calculated by the simulated signal calculation means instead of the in-reactor output signal of the detector. A simulated signal input means for inputting a simulated detection signal based on a value to the LPRM unit to be tested, and the simulated signal input means. When the pseudo detection signal is input to the LPRM unit, data collecting means for collecting the LPRM signal sent from the LPRM unit, and based on the LPRM signal collected by the data collecting means and the predetermined local output value, LP to be tested
An output area monitor test device, comprising: an LPRM determining means for determining whether or not an RM unit is abnormal. 2. A reactor nuclear instrumentation system power range monitor equipped with a plurality of LPRM units for converting in-core output detection signals individually sent from a plurality of detectors in a reactor into LPRM signals and sending the LPRM signals. An output range monitor test device for performing all LPRM gains based on parameter collecting means for collecting LPRM gains of all LPRM units and each LPRM gain collected by the parameter collecting means.
In the M unit, simulated detection signals are individually calculated so as to generate LPRM signals having the same value, and all LPR signals are calculated.
Simulated signal input means to be given to the M unit and LPs sent from all LPRM units by this simulated signal input means
When the RM signals show approximately the same value, one LPR
Simulated signal changing means for changing only the simulated detection signal of the M unit to a different value, and when only one simulated detection signal is changed by the simulated signal changing means, the LPRM signal of this LPRM unit indicates the changed value. Whether or not the LPRM signal of one LPRM unit changes when only the simulated detection signal of one LPRM unit is changed by this connection error detecting unit that determines whether or not there is an error connection. Interference detection means that determines the presence or absence of interference by determining whether there is interference, and all LPRM units, when it is determined that there is no incorrect connection by the incorrect connection detection means and there is no interference by the interference detection means, all All signal changing means for changing the simulated detection signals of 1 to a predetermined local output value while maintaining the same relationship with each other; When the simulated detection signal modified by the means is input to all LPRM units, data collecting means for individually collecting each LPRM signal transmitted from all LPRM units, and all LPRM signals collected by this data collecting means, An output range monitor test apparatus, comprising: all LPRM determination means for determining whether or not all LPRM units are abnormal based on the predetermined local output value. 3. The output area monitor test apparatus according to claim 1, wherein each LPRM signal collected by the data collecting means is stored as a current value, and the current value and the previous value are stored. An output area monitor test apparatus comprising a history abnormality determining means for comparing the previous value with the previous value and determining the presence or absence of an abnormality. 4. A plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals and sending the LPRM signals, and each LPRM signal sent by each LPRM unit. An output range monitor test apparatus for testing a reactor nuclear instrumentation system output range monitor, comprising: an APRM unit for averaging and converting the APRM signal to be transmitted, wherein the APRM to be tested among the LPRM units. First parameter collecting means for collecting the LPRM gain of each LPRM unit connected to the unit, and second for collecting the APRM gain of the APRM unit
Parameter collecting means, and each LP collected by the first parameter collecting means
Based on the RM gain and the APRM gain collected by the second parameter collecting means, each LPRM signal is generated so as to generate an APRM signal showing a predetermined average output value.
Simulated signal calculation means for individually calculating the set value of the simulated detection signal of the unit, and an individual simulated detection signal based on each set value calculated by the simulated signal calculation means instead of the in-furnace output signal of the detector To the respective LPRM units, and the simulated signal input means converts each simulated detection signal into each LPR.
When input to the M unit, the APRM sent from the APRM unit connected to each LPRM unit concerned
Data collection means for collecting signals, and the AP to be tested based on the APRM signal collected by the data collection means and the predetermined average output value
An output area monitor test device, comprising: an APRM determination means for determining whether or not there is an abnormality in an RM unit. 5. A plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals and sending the LPRM signals, and each LPRM signal sent by each LPRM unit. And an APRM unit having a function of converting into an APRM signal on average and sending out, and a function of converting a core flow rate detection signal individually sent out from a plurality of flowmeters in the reactor into a FLOW signal and sending out. An output range monitor test apparatus for testing a reactor nuclear instrumentation system output range monitor, the first range collecting LPRM gain of each LPRM unit connected to an APRM unit to be tested among the LPRM units. Parameter collection means and APR of the APRM unit
Second parameter collecting means for collecting M gain, third parameter collecting means for collecting core flow rate calculation coefficient of the APRM unit, each LPRM gain collected by the first parameter collecting means and the second First simulated signal calculation for individually calculating the set value of the simulated detection signal of each LPRM unit so as to generate an APRM signal showing a predetermined average output value, based on the APRM gain collected by the parameter collecting means Means, and first simulated signal input means for inputting an individual simulated detection signal based on each set value calculated by the simulated signal calculation means to each LPRM unit in place of the in-furnace output signal of the detector. , Each LPRM gain collected by the first parameter collecting means, A collected by the second parameter collecting means A second value for calculating the set value of the simulated flow rate detection signal so as to generate a FLOW signal indicating a predetermined in-core flow rate value based on the RM gain and the core flow rate calculation coefficient collected by the third parameter collecting means. A second simulated signal for inputting to the APRM unit a simulated flow rate detection signal based on the set value calculated by the second simulated signal calculation means instead of the simulated signal calculation means and the core flow rate detection signal of the flow meter. Input means, and the first and second
Data collecting means for collecting a FLOW signal sent from the APRM unit when each simulated detection signal and simulated flow rate detection signal are inputted by the simulated signal input means of
The AP to be tested is based on the FLOW signal collected by the data collecting means and the predetermined core flow rate value.
An output area monitor test device, comprising: an APRM determination means for determining whether or not there is an abnormality in an RM unit. 6. A plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals and sending the LPRM signals, and each LPRM signal sent by each LPRM unit. To test a reactor nuclear instrumentation system power range monitor equipped with an APRM unit having a function of converting into an APRM signal on average and sending out, and a function of sending out trip occurrence information when this APRM signal exceeds a trip set value Of the LPRM units, the first parameter collecting unit collecting the LPRM gain of each LPRM unit connected to the APRM unit to be tested, and the APR.
Second parameter collecting means for collecting the APRM gain of the M unit, and each LP collected by the first parameter collecting means
Based on the RM gain and the APRM gain collected by the second parameter collecting means, each LPRM signal is generated so as to generate an APRM signal showing a predetermined average output value.
Simulated signal calculation means for individually calculating the set value of the simulated detection signal of the unit, and an individual simulated detection signal based on each set value calculated by the simulated signal calculation means instead of the in-furnace output signal of the detector To the respective LPRM units, and the simulated signal input means converts each simulated detection signal into each LPR.
Trip information collecting means capable of collecting trip occurrence information sent from the APRM unit connected to each LPRM unit when the trip occurrence information is collected by the trip information collecting means, An APRM determination unit that determines whether or not the APRM unit is abnormal by comparison with a predetermined trip setting reference value, and a predetermined average in the simulated signal calculation unit when trip occurrence information is not collected by the trip information collection unit. The output value toward the trip setting reference value
An output area monitor testing device, comprising: a setting changing means for updating in units smaller than the minimum measurement resolution of the RM unit. 7. The output area monitor test apparatus according to claim 6, wherein the setting changing means has a predetermined average output value in the simulated signal calculating means when trip occurrence information is not collected by the trip information collecting means. When the deviation between the trip setting reference value and the trip setting reference value is greater than a predetermined change unit, the predetermined average output value is updated toward the trip setting reference value in the predetermined change unit. Output area monitor test equipment. 8. A plurality of LPRM units for converting the in-reactor output detection signals individually sent from a plurality of detectors in a nuclear reactor into LPRM signals and sending the LPRM signals, and each LPRM signal sent by each LPRM unit. A function of averaging and converting into an APRM signal to be sent out, a function of converting a core flow rate detection signal individually sent out from a plurality of flowmeters in the nuclear reactor into a FLOW signal, and defining a trip set value from the FLOW signal, and AP having a function of transmitting trip occurrence information when the APRM signal exceeds the trip set value
An output range monitor test apparatus for testing a nuclear reactor instrumentation system output range monitor comprising an RM unit, wherein the LPRM gain of each LPRM unit connected to the APRM unit to be tested among the LPRM units. And a second parameter collecting means for collecting the APRM gain of the APRM unit.
Parameter collecting means, third parameter collecting means for collecting core flow rate calculation coefficients of the APRM unit, and each LP collected by the first parameter collecting means.
Based on the RM gain, the APRM gain collected by the second parameter collecting means, and the core flow rate calculation coefficient collected by the third parameter collecting means, a FLOW signal for generating the predetermined trip set value is generated. A simulated flow rate signal calculating means for calculating the set value of the simulated flow rate detection signal so as to generate, and a simulated flow rate detection based on the set value calculated by the simulated flow rate signal calculation means instead of the core flow rate detection signal of the flow meter. Simulated flow rate signal input means for inputting a signal to the APRM unit, and trip set value collection means for collecting trip set values from the APRM unit when the simulated flow rate detection signal is inputted by the simulated flow rate signal input means, The trip set value collected by the trip set value collection means and the simulated flow rate signal calculation means Out the FLO
When the trip set value corresponding to the W signal matches, each LPR collected by the first parameter collecting means.
Based on the M gain and the APRM gain collected by the second parameter collecting means, the set value of the simulated detection signal of each LPRM unit is individually calculated so as to generate an APRM signal showing a predetermined average output value. Simulated signal calculation means, and simulated signal input means for inputting individual simulated detection signals based on each set value calculated by the simulated signal calculation means to each LPRM unit instead of the in-furnace output signal of the detector. , Each simulated detection signal is transmitted to each LPR by this simulated signal input means.
Trip information collecting means capable of collecting trip occurrence information sent from the APRM unit connected to each LPRM unit when the trip occurrence information is collected by the trip information collecting means, An APRM determination unit that determines whether or not the APRM unit is abnormal by comparison with the predetermined trip set value, and a predetermined average in the simulated signal calculation unit when trip occurrence information is not collected by the trip information collection unit. An output area monitor test apparatus, comprising: a setting changing unit that updates an output value toward the trip setting reference value in a predetermined unit. 9. An in-reactor output detection signal individually sent from a plurality of detectors in a nuclear reactor in which a plurality of control rods are arranged is L.
A plurality of LPRM units that are converted into PRM signals and sent, an APRM unit that averages the LPRM signals sent by the LPRM units and converts the APRM signals to send, and an LPR unit sent by the LPRM units.
An output area monitor test device for testing a reactor nuclear instrumentation system output area monitor equipped with an RBM unit for monitoring the state of the inside of a reactor based on an M signal. Control rod / detector correspondence storage means in which the correspondence relation with the control rod is stored, and when a control rod is selected, each detector corresponding to this control rod is referred to by referring to the control rod / detector correspondence storage means. A first parameter collecting unit that collects an LPRM gain of each LPRM unit connected to each detector searched by the detector searching unit among the LPRM units; LPRM for each detector that is different from each searched detector
APRM unit connected via unit to AP
Second parameter collecting means for collecting RM gain, and LPR collected by the first parameter collecting means
LPRM indicating a predetermined local output value based on M gain
A first simulated signal calculating means for calculating a set value of the simulated detection signal so as to generate a signal, and the first simulated signal in place of the in-reactor output signal of each detector searched by the detector searching means. Each LP corresponding to the simulated detection signal based on the set value calculated by the signal calculation means
First simulated signal inputting means for inputting to the RM unit, and LPR collected by the first parameter collecting means
Calculating a set value of the simulated detection signal so as to generate an APRM signal indicating an average output value calculated from a predetermined RBM gain based on the M gain and the APRM gain collected by the second parameter collecting means; 2 instead of the in-reactor output signal of each of the simulated signal calculating means and each of the detectors searched by the detector searching means, instead of the set value calculated by the second simulated signal calculating means. Second simulated signal input means for inputting a simulated detection signal based on the above to each corresponding LPRM unit;
When input to the PRM unit, a selection control rod signal input means for inputting a selection control rod signal for selecting the control rod to the RBM unit and an average value of each simulated detection signal input by the simulated signal input means are obtained. , RBM gain calculating means for calculating an RBM gain based on this average value and an APRM signal corresponding to the predetermined RBM gain, and an RBM value calculating means for calculating an RBM value based on the calculation result, and selection control by the selection control rod signal input means The stick signal is R
RBM value collecting means for collecting an RBM value from the RBM unit when input to the BM unit, RBM value calculated by the RBM value calculating means, and R
An output area monitor test apparatus comprising: RBM determination means for comparing the RBM values collected by the BM value collection means and for judging that the RBM unit is abnormal when the RBM values do not match. 10. The output area monitor testing device according to claim 9, wherein the control rod / detector correspondence storage means stores position information in the correspondence between each control rod and each detector. And when each detector corresponding to the control rod to be tested is searched from the control rod / detector correspondence storage means by the detector searching means, based on the search result, the control rod and each detection An output area monitor test device comprising display output means for displaying and outputting the position information of the container.