KR20190119272A - Radioactivity detector - Google Patents

Abstract

A radioactivity measuring device according to the present invention, comprises: a device case through which outside air passes; a collection unit embedded in the device case and collecting radioactive particulates and radioactive gas of the outside air; and a detection unit installed in the device case and measuring the radioactive particles and the radioactive gas collected in the collection unit in real-time. Therefore, an objective of the present invention to provide the radioactivity measuring device capable of simultaneously collecting and measuring radioactive particles and radioactive gas.

Description

Radioactivity Measuring Equipment {RADIOACTIVITY DETECTOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radioactivity measuring device, which measures radioactive particles in air and radiation of radioactive gas.

In addition to the normal operation of nuclear facilities, radionuclides released during accidents spread in the form of particulates in the air, polluting the air, and over time, they are deposited on the surface by radioactive fallout.

In general, a low volume air sampler is used to obtain a radioactive concentration in the air, each of which is provided with a glass fiber filter and a charcoal filter which are prepared and installed independently of each other.

In this case, the glass fiber filter collects radioactive fine particles in air, and the charcoal filter collects radioactive iodine in the form of a noble gas.

In order to monitor the normal operation of nuclear facilities, the continuous collection device is fixedly installed and operated in the designated monitoring post.In order to respond in case of an accident, the continuous collection device is installed in the necessary places such as the accident area or the surrounding residential area.

In order to analyze the radioactivity of the collected air particles, the collected filters are brought to a general radiation analysis room and analyzed for their concentration.

This results in the hassle of having to visit the site at regular intervals, take out the collected filter and replace it with a new one.

Therefore, the disadvantage of conventional airborne concentration analysis is that disaster prevention personnel should go directly to the site in case of an accident and operate the airborne particulate and radioactive iodine continuous collection device, which may inevitably be exposed to risks such as radiation exposure. Is the point.

In addition, since a long time interval from the sampling to the radioactive analysis room to analyze occurs, it is difficult to effectively radioactive disaster prevention as the real-time radiation concentration of the accident site is unknown.

In order to compensate for these drawbacks, unmanned systems have been introduced to collect samples using airborne continuous particle collection devices, filter paper supply by rollers, and radioactivity analysis. However, this requires a large-scale facility, and most of them are collected. After the pre-collection, the analysis method is not selected.

Furthermore, in the case of a charcoal filter for radioactive iodine collection, methods such as sample collection, analysis, and automatic filter supply have not yet been widely used.

Japanese Unexamined Patent Publication No. 1995-198856

The present invention has been made to solve the above problems, and an object thereof is to provide a radioactivity measuring apparatus capable of simultaneously collecting and measuring radioactive particles and radioactive gas.

Radioactivity measuring apparatus according to an embodiment of the present invention to achieve the above object, the device case through which the outside air passes; A collecting unit embedded in the apparatus case and collecting radioactive particulates and radioactive gas of the outside air; And a detection unit installed in the apparatus case and measuring the radioactive particles and the radioactive gas collected in the collection unit in real time.

In the radioactivity measuring device according to the present invention, the collection unit and the detection unit are configured as a single device to collect radioactive particles and radioactive gases in the air at the same time, and to measure radioactivity by measuring radiation from the radioactive particles and radioactive gases. It has the effect of analyzing in real time.

In addition, the radioactivity measuring device according to the present invention comprises the first detector and the second detector together with the glass fiber filter unit and the charcoal filter unit of the filter cartridge, so that all radiation of alpha nuclides, beta nuclides, and gamma nuclides. Has the advantage of being able to measure with a single device.

In addition, the radioactivity measuring device according to the present invention is formed of a filter cartridge as a glass fiber filter unit and a charcoal filter unit as a single unit, and made of a single member, and can be easily and easily replaced by a replacement unit. Even if it has the advantage to increase the productivity.

In addition, the radiation measuring apparatus according to the present invention is configured by the replacement unit for automatically replacing the filter cartridge, it is possible to easily and easily replace the filter cartridge, and above all, disaster prevention personnel need to replace the filter cartridge in the field There is no advantage in reducing the risk of radiation exposure.

1 is a view showing the interior of the radioactivity measuring apparatus according to the present invention.
2 is a view showing a collecting unit and a detection unit in the radioactivity measuring apparatus of FIG.
3 is a view showing a filter cartridge in the collecting unit of FIG.
FIG. 4 is a view illustrating a suction nozzle and a filter cartridge of the air suction unit in the collecting unit of FIG. 2.
5 and 6 are views showing that the outside air flows into the collecting unit side of FIG.
7 is a view showing that the assembly is moved in the first detector of the detection unit of FIG.
8 is a view showing a process of replacing the collection unit in the radiation measuring apparatus of FIG.
9 and 10 are views showing the placement and movement of the locking bar in the radiation measuring apparatus of FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail. In the reference numerals to the components of each drawing, it is noted that the same reference numerals are assigned to the same components as much as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a view showing the interior of the radioactivity measuring apparatus according to the present invention, Figure 2 is a view showing a collecting unit and a detection unit in the radioactivity measuring apparatus of FIG.

In addition, Figure 3 is a view showing the filter cartridge in the collecting unit of Figure 2, Figure 4 is a view showing the suction nozzle and the filter cartridge of the air intake unit in the collecting unit of FIG.

5 and 6 are views illustrating the inflow of outside air into the collecting unit side of FIG. 2, and FIG. 7 is a view illustrating the assembly movement of the first detector of the detection unit of FIG. 2.

Referring to the drawings, the radiation measuring apparatus according to the present invention includes a device case 100, the collecting unit 200, and the detection unit 300.

Here, the device case 100 is formed with a receiving space for accommodating the collecting unit 200 and the detection unit 300 while passing the outside air therein, the collection unit 200 and the detection unit 300 is All can be built in.

Such a device case 100 has a handle 109 is formed on the top, it is portable and can be easily and easily carried by the operator to the site to measure the radioactivity.

Furthermore, the device case 100 only needs to include a collection unit 200, a detection unit 300, and a replacement unit 400 to be described below, but the specific appearance is not limited by the present invention. Of course.

In addition, the collecting unit 200 is configured to collect radioactive particles and radioactive gas of the outside air, the detection unit 300 is configured to measure the radioactive particles and radioactive gas collected in the collecting unit 200 in real time. .

As described above, the radioactivity measuring apparatus according to the present invention comprises a collection unit 200 and a detection unit 300 as a single device, and simultaneously collect radioactive particles and radioactive gases in the air in the field, and at the same time, these radioactive particles and radioactive By measuring the radiation from the gas, the radioactivity can be analyzed in real time.

Then, the collection unit 200 and the detection unit 300 will be described here.

The collection unit 200 may include a filter cartridge FC and an air suction unit 230.

Here, the filter cartridge (FC) is composed of a glass fiber filter unit 210 for collecting radioactive particles and a char filter unit 220 for collecting radioactive gas, such glass fiber filter unit 210 and the char filter unit 220 is integrally formed.

In detail, the char filter unit 220 includes an opening plate 221 and a sealing plate 222 spaced apart from each other, a first mesh net 223, and a second mesh net 224.

At this time, the first mesh net 223 is formed on the opening of the opening plate 221, the second mesh net 224 is connected to the opening plate 221 and the sealing plate 222 while the char is received therein do.

In addition, the glass fiber filter unit 210 is fixed to the charcoal filter unit 220 to cover the first mesh network 223, for example, may be attached to the edge on the opening of the opening plate 221, It may be attached to one mesh network 223.

Thus, the filter cartridge (FC) is a glass fiber filter unit 210 and the charcoal filter unit 220 is formed as a single body formed of a single member, easy and easy replacement by the replacement unit 400 to be described later In terms of manufacturing, productivity can be increased.

In addition, the air inhaler 230 sucks air so that outside air sequentially passes through the glass fiber filter unit 210 and the charcoal filter unit 220 of the filter cartridge FC.

At this time, the glass fiber filter 210 of the filter cartridge (FC) is disposed on the air inlet (100a) side of the device case 100, the air intake 230 is an air outlet (100b) of the device case 100 It can be installed in communication with.

Specifically, the air suction unit 230 is composed of an air pump 231 and the suction nozzle 232 connected to the air pump 231, the second mesh network 224 is shown in Figure 4 The plurality of suction nozzles 232 may be disposed at regular intervals, and the internal space may be divided into a plurality of partitions 225 to correspond to the plurality of suction nozzles 232.

That is, the plurality of suction nozzles 232 are formed along the circumference of the second mesh network 224 of the charcoal filter unit 220 such that air passes through the entire portion of the charcoal filter unit 220 in the filter cartridge FC. It may be arranged at regular intervals apart. In addition, due to the arrangement of the plurality of suction nozzles 232, the air suction inputs cancel each other at the center of the char filter unit 220. To prevent this, the second mesh network 224 corresponds to the plurality of suction nozzles 232. By dividing the internal space into a plurality of partitions 225, the air in each space portion divided into partitions 225 can be sucked to the adjacent suction nozzle 232 smoothly and at a high speed.

Meanwhile, the detection unit 300 may include a first detector 310 and a second detector 320.

In this case, the first detector 310 measures the radionuclide radiation of alphanuclide and beta nuclide in the radioparticles, the second detector 320 measures the radiation of the gamma nuclide and the radioactive gas type gamma nuclide in the radioparticles According to the present invention, the first detector 310 and the second detector 320 together with the glass fiber filter unit 210 and the charcoal filter unit 220 of the above-described filter cartridge (FC) are configured as a single device, All radiation of nuclides, beta nuclides, and gamma nuclides can be measured with one device.

Specifically, the first detector 310 is disposed closer to the glass fiber filter unit 210 while being positioned closer to the air inlet 100a than the glass fiber filter unit 210, and collected in the glass fiber filter unit 210. Radionuclides and radionuclides are measured in the radioactive particles.

In addition, the second detector 320 is disposed on the opposite side of the glass fiber filter unit 210 with respect to the charcoal filter unit 220, and gamma nuclides from the radioactive particles collected in the glass fiber filter unit 210, The radiation of the gas-type gamma nuclide, which is the radioactive gas collected in the charcoal filter unit 220, is measured.

Specifically, the alphanuclide, beta nuclide, and gamma nuclide are collected from the radioactive particles in the glass fiber filter unit 210, wherein the radionuclides of the alpha nuclide and the beta nuclide are very short in non-crystalline (transmission distance in the material) glass fiber. Only the first detector 310 proximate to the filter unit 210 is measured, and the radiation of the gamma nuclide is measured by the second detector 320 because the specificity is relatively long. At this time, the assembly (AS) consisting of the scintillator 311, the photodiode 312, the light guide 313 of the first detector 310 to be described later is made thin, the glass fiber filter unit 210 and the char filter unit ( In operation 220, the probability of colliding with the radiation of the gamma nuclide proceeding toward the first detector 310 may be lowered.

In addition, the radiation of the gas-type gamma nucleus, which is the radioactive gas collected by the char filter unit 220, is measured by the second detector 320, and is sealed between the char filter unit 220 and the second detector 320. The plate 222 is made of a low-density plastic, so that the gas-type gamma-nuclide radiation does not impinge on the hermetic plate 222, that is, is not blocked by the hermetic plate 222 and passes through the hermetic plate 222. Measured efficiently at the second detector 320.

Meanwhile, the first detector 310 includes a scintillator 311, a photodiode 312, a light guide 313, and an electron counting unit 314.

Here, the scintillator 311 collides with the radiation of alpha nuclides and beta nuclides in the radioparticulates to create a flash.

In addition, the photodiode 312 is disposed on the opposite side of the glass fiber filter unit 210 based on the scintillator 311 and converts the flash into an electronic signal and amplifies it.

In addition, the light guide 313 connects the scintillator 311 and the photodiode 312, and transmits the flash generated by the scintillator 311 to the photodiode 312.

The electron counting unit 314 is connected to the photodiode 312 to count the electronic signal of the photodiode 312.

In addition, the first detector 310 may further include a motor 315 and a screw shaft 316 to enable separate measurement by non-uniformity of the radiation of alphanuclide and beta-nuclide.

Here, the motor 315 is installed in the electron counting unit 314, the screw shaft 316 is connected to the motor to be rotated by the drive of the motor 315.

At this time, the assembly (AS) consisting of the scintillator 311, the light guide 313, and the photodiode 312, the gear shaft is geared to the screw shaft 316, the screw shaft ( While moving along the longitudinal direction of the 316 may take a structure in which the distance to the glass fiber filter unit 210 is variable.

Accordingly, the distance between the assembly AS and the glass fiber filter unit 210 may be finely adjusted by the shaft rotation of the screw shaft 316 during the operation of the motor 315. For reference, the assembly AS and The screw shaft 316 may be geared with a worm gear structure.

The radiation of alphanuclide differs from that of beta-nuclide in the specific distance. Specifically, the radiation of alphanuclide is shorter than that of beta-nuclide. In other words, the radionuclide distance of the alpha nuclide is about 0.1 mm, while that of the beta nuclide is about 1 mm.

Therefore, as shown in FIG. 7A, the assembly AS including the scintillator 311, the light guide 313, and the photodiode 312 is moved to the glass fiber filter unit 210 to move the glass fiber filter unit. By shortening the distance to 210, and measuring both the radionuclide and beta-nuclide radiation, as shown in Figure 7 (b) is moved the assembly (AS) to the glass fiber filter unit 210 side glass fiber filter By shortening the distance from the unit 210 and measuring only the radiation of the beta-nuclide, the measurement values for the radiation of the alpha-nuclide and the radiation of the beta-nuclide can be obtained. In this case, the radionuclide radiation measurement (total alpha count rate by alpha ray) is the result of subtracting the subsequent measurement from the previous measurement.

In addition, the second detector 320 preferably uses a scintillator capable of measuring energy spectrum, and further includes a photomultiplier tube (PMT) and a multi-channel analyzer (MCA) for signal processing, and a filter cartridge (FC). It is desirable to form a shielding structure wrapped in a dense material so as to minimize the effect of radiation from the outside except for.

Meanwhile, the device case 100 may include a detector support member 120 and a screen member 130.

The detector support member 120 fixes the first detector 310 to the inner surface of the device case 100 so that an inflow passage of outside air is formed around the first detector 310 inside the device case 100. So that they can be spaced apart from one another.

In addition, the screen member 130 is installed in the front end of the air inlet (100a) in the device case 100, it is possible to filter foreign matter or large particles.

On the other hand, the radioactivity measuring apparatus according to the present invention further includes a replacement unit 400, the replacement unit 400 will be described with reference to Figures 1 and 8 to 10.

8 is a view showing a process of replacing the collection unit in the radiation measuring apparatus of Figure 2, Figures 9 and 10 is a view showing the placement and movement of the catch bar in the radiation measuring apparatus of FIG.

1 and 8 to 10, the replacement unit 400 is installed in the device case 100 is configured to automatically replace the filter cartridge (FC).

In detail, the device case 100 includes a measurement layer 101 in which a collecting unit 200 and a detection unit 300 are disposed, and a supply layer 102 on the measurement layer 101. The collecting layer 103 may be formed on the lower side.

In addition, the device case 100 has a supply hole (102a) is formed in the upper floor dividing the measurement layer 101 and the supply layer 102 so that the filter cartridge (FC) passes, the measurement layer 101 and the collection layer A collection hole 103a may be formed in the lower floor dividing 103.

In this case, the replacement unit 400 may include a plurality of new filter cartridges FC, a cartridge push member 410, and a discharge chute member 420.

A plurality of new filter cartridges FC are received in the supply layer 102 for replacement of the filter cartridges FC of the measurement layer 101.

In addition, the cartridge push member 410 pushes the filter cartridge (FC) accommodated in the supply layer 102 to the supply hole (102a) in order to supply to the measurement layer 101, for example an electric motor Drive member, such as hydraulic cylinder, air cylinder can be utilized.

In addition, the discharge chute member 420 is disposed in the collection layer 103, and takes a structure extending downwardly from the collection hole 103a to slide the filter cartridge (FC) used in the measurement layer 101. .

According to this configuration, when replacing the filter cartridge FC of the measurement layer 101, the filter cartridge FC used for the measurement layer 101 is first removed through the collecting hole 103a, and then the supply layer 102 is removed. A new filter cartridge (FC) of the) is dropped through the supply hole 102a and supplied to the measurement layer 101.

However, the new filter cartridge FC dropped to the measurement layer 101 through the supply hole 102a before the measurement layer 101 goes to the collection hole 103a located below the supply hole 102a. When stopped in, the configuration for such a stop action will be described with reference to Figures 9 and 10 as follows.

In the char filter unit 220, the sealing plate 222 is formed with a locking groove 222a along the circumference.

In addition, the bent end inserted into the locking groove 222a in the measurement layer 101 to receive and support the new filter cartridge FC of the supply layer 102 falling through the supply hole 102a in the measurement layer 101. A catching bar 450 having a 451 may be disposed.

That is, the hook bar 450 is formed with a bent end 451 bent by 'b', as shown in Figure 10 (a) a new filter cartridge (FC) of the supply layer 102 is measured layer ( At the time of dropping to 101, the bent end 451 is inserted into the locking groove 222a formed around the sealing plate 222 in the char filter unit 220, thereby allowing the new filter cartridge FC falling to measure the measurement layer 101. I can receive it and support it.

In addition, in order to drop the filter cartridge (FC) to be collected after being used in the measurement layer 101 through the collection hole (103a), the bar driving member for moving the locking bar 450 to the measurement layer 101 (not shown) The bar driving member is connected to the locking bar 450 to rotate the locking bar 450 around the sealing plate 222 along the locking groove 222a of the sealing plate 222. It takes a structure for moving the catching bar 450, for example, a driving member such as an electric motor, a hydraulic cylinder, an air cylinder can be utilized.

The locking bar 450 receives and supports the filter cartridge FC that is bent while the bent end 451 is inserted into the locking groove 222a of the sealing plate 222 by the char filter unit 220. When the filter cartridge (FC) used in the) through the collection hole 103a, as shown in Figure 10 (b) by the operation of the bar drive member, the engaging bar 450 is caught by the sealing plate 222 As the filter cartridge FC is not supported by moving upwardly while rotating the circumference of the sealing plate 222 along the groove 222a, the filter cartridge FC falls through the lower collection hole 103a. .

In addition, the replacement unit 400 may further include a detector case 470 and a case driving member 490.

The detector case 470 is disposed to be movable in the measurement layer 101, and the second detector 320 is accommodated and the locking bar 450 is mounted at the circumference thereof.

In addition, the case driving member 490 is connected to the detector case 470, and moves the locking bar 450 to the lower side of the supply hole 102a, or the filter cartridge (FC) caught on the locking bar 450. To reciprocate the detector case 470 toward the air inlet 100a so as to be located close to the first detector 310. As an example, a driving member such as an electric motor, a hydraulic cylinder, and an air cylinder is utilized. Can be.

In addition, the guide plate 480 is installed at the driving connection end or case driving member 490 connected to the case driving member 490 in the detector case 470 to guide the position fixing and movement of the locking bar 450. Can be.

The guide plate 480 may be formed with a first guide groove 480a and a second guide groove 480b.

Specifically, the first guide groove 480a slides by inserting the connecting portion 452 of the locking bar 450 connected to the bar driving member to guide the locking bar 450 rotating around the sealing plate 222. It is formed along the outer circumferential surface of the guide plate 480 to be moved.

In addition, the second guide groove 480b is formed so that the inner protrusion 452a formed at the connection portion 452 of the locking bar 450 is inserted and assembled so that the locking bar 450 reciprocates with the detector case 470. 1 is formed in the guide groove 480a. Of course, the second guide groove 480b may correspond to the first guide groove 480a so that the movement of the inner protrusion 452a is not limited when the locking bar 450 moves along the first guide groove 480a. It is formed along the guide groove 480a.

For reference, the guide plate 480 may be provided with a cable hole 480c through which a data cable (not shown) connected to the first detector 310 and the second detector 320 passes.

On the other hand, the filter cartridge (FC) is moved to each of the air inlet (100a) side and the opposite side of the air inlet (100a) on the basis of the suction nozzle 232 of the air suction unit 230 provided in the measurement layer 101 Filter stopper 110 to limit the protruding to the inner surface of the device case 100, the measurement layer 101 may be formed.

In addition, when the filter cartridge FC moves toward the air inlet 100a together with the catching bar 450 by moving to the detector case 470, the opening plate 221 and the sealing plate 222 are filter stoppers 110. The o-ring member 226 may be mounted to the opening plate 221 and the sealing plate 222 so as to be in close contact with the cover plate. Accordingly, air is not leaked between the filter stopper 110 and the opening plate 221, between the filter stopper 110 and the sealing plate 222, and thus, the outside air is sucked through the filter cartridge FC. And flows to 232.

In addition, numbers may be sequentially printed on the filter cartridges FC accommodated in the measurement layer 101 and the plurality of new filter cartridges FC accommodated in the supply layer 102.

Accordingly, by sequentially printing the number on the plurality of filter cartridges (FC) used for the radiation measurement, it is possible to distinguish the filter cartridge (FC) by the collection and measurement time, and to accurately measure the radiation at a constant collection and measurement time If you want to do this, you can take the filter cartridge (FC) from this time zone to the lab for further analysis.

In addition, the filter cartridge (FC) can be separated from the charcoal filter unit 220, the glass fiber filter unit 210, it is possible to measure the radiation of the radioactive particles of the glass fiber filter unit 210 by a conventional method during precision analysis Can be.

As an example, the filter cartridge (FC) to remove the glass fiber filter unit 210 attached to the charcoal filter unit 220, and measure the radionuclide and beta nuclide radiation using a gas flow proportional coefficient tube in the laboratory In addition, the gamma spectrometer can be used to measure the radiation of the gamma nuclide.

Meanwhile, the present invention may further include a controller 510, a transceiver 520, and a GPS 530.

Here, the controller 510 is mounted to the device case 100.

In addition, the transmission / reception unit 520 is electrically connected to the detection unit 300 to transmit the radiation measurement result of the detection unit 300 by wire or wirelessly, wire the control value so that the control value is input to the controller 510. Or it has a function of receiving wirelessly.

In addition, the PS 530 serves to inform the position and the measurement time of the collection unit 200.

The controller 510 controls the detection unit 300, the transceiver 520, and the GPS 530, and is electrically connected to the replacement unit 400 to control the replacement unit 400. do.

For reference, the device case 100 may be equipped with an input unit for directly inputting a control value to the controller 510 and a control panel 540 having a display unit for displaying the input value and the measurement result.

Furthermore, a power supply unit (not shown) electrically connected to the detection unit 300, the controller 510, the transceiver 520, the GPS 530, the replacement unit 400, and supplying electricity to the device case 100. Can be installed.

Here, the power supply unit may include a battery solar panel.

At this time, the battery is installed in the device case 100, the solar panel is electrically connected to the battery to charge the battery by photovoltaic power generation.

Accordingly, the power supply unit may supply electricity to the solar panel by itself, and as another example, may be connected to an external power source and receive electricity from an external power source to supply electricity to an electric device installed in the device case 100.

In addition, the device case 100 may be installed in a moving cart (not shown), and the moving cart may be controlled to be moved by the controller 510 described above.

The mobile trolley can be effectively radioactive disaster prevention by allowing the collection unit 200 and the detection unit 300 to be placed in place in accordance with the weather changes, such as the wind field near the accident site as the convenience of movement.

In addition, the device case 100 may be provided with a cover (not shown) to cover the air inlet (100a) on the outer upper portion of the air inlet (100a).

Such a cover can prevent rainwater from penetrating into the collecting unit 200 and the detection unit 300, and blocks the sunlight when using the flash detector as the detection unit 300 as well as rainfall, thereby preventing the system from changing temperature. It can reduce instability.

As a result, the radioactivity measuring device according to the present invention comprises a collection unit 200 and the detection unit 300 as a single device, and at the same time to collect the radioactive particles and radioactive gas in the air, such radioactive particles and radioactive By measuring the radiation from the gas, the radioactivity can be analyzed in real time.

In addition, in the radioactivity measuring apparatus according to the present invention, the first detector 310 and the second detector 320 together with the glass fiber filter unit 210 and the charcoal filter unit 220 of the filter cartridge FC are one device. By being configured, all radiations of alphanuclides, beta nuclides, and gamma nuclides can be measured with one device.

In addition, the radioactivity measuring device according to the present invention, as the glass fiber filter unit 210 and the charcoal filter unit 220 is formed as a filter cartridge (FC) as an integrated body made of one member, by the replacement unit 400 It can be replaced simply and easily, and productivity can be increased in terms of manufacturing.

In addition, the radiation measuring apparatus according to the present invention is configured by the replacement unit 400 for automatically replacing the filter cartridge (FC), it is possible to easily and easily replace the filter cartridge (FC), above all the disaster prevention personnel There is no need to replace the filter cartridge in the field, reducing the risk of radiation exposure.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the equivalent scope of the claims to be described.

100: device case 109: handle
100a: air unit opening 100b: air outlet
101: measuring layer 102: supply layer
103: collection floor 103a: collection hall
110: filter stopper 120: detection support member
130: screen member
200: collection unit
FC: filter cartridge 210: glass fiber filter
220: charcoal filter unit 221: opening plate
222: sealing plate 222a: locking groove
223: first mesh network 224: second mesh network
225: partition 226: O-ring member
230: air intake 231: air pump
232: suction nozzle
300: detection unit 310: first detector
AS: Assembly 311: Scintillator
312 photodiode 313 light guide
314: electron counting unit 315: motor
316: screw shaft 320: second detector
400: replacement unit 410: cartridge push member
420: discharge chute member 450: locking bar
451: bending end 452: connection
452a: inner protrusion 470: detector case
480: guide plate 480a: first guide groove
480b: Second guide groove 480c: Cable hole
490: case driving member
510: controller 520: transceiver
530: GPS

Claims (21)

A device case through which outside air is passed;
A collecting unit embedded in the apparatus case and collecting radioactive particulates and radioactive gas of the outside air; And
A detection unit installed in the apparatus case and measuring the radioactive particles and the radioactive gas collected in the collection unit in real time;
Radioactivity measuring device comprising a.
The method of claim 1,
The collection unit,
A filter cartridge integrally formed with a glass fiber filter unit for collecting the radioactive particles and a char filter unit for collecting the radioactive gas; And
And an air inhaler that sucks air so that outside air passes sequentially through the glass fiber filter unit and the charcoal filter unit of the filter cartridge.
The glass fiber filter unit is disposed on the air inlet side of the device case, the air intake device is characterized in that installed in communication with the air outlet of the device case.
The method of claim 2,
The charcoal filter unit,
An opening plate and a sealing plate spaced apart from each other;
A first mesh network formed on the opening of the opening plate; And
While connecting the opening plate and the sealing plate therein; a second mesh network is accommodated in the char;
And the glass fiber filter unit is fixed to the char filter unit to cover the first mesh network.
The method of claim 3,
The air suction unit is composed of an air pump and a suction nozzle connected to the air pump,
The second mesh network, the plurality of suction nozzles are arranged around the spaced apart at a predetermined interval, the radioactivity measuring apparatus, characterized in that divided into a plurality of internal spaces corresponding to the plurality of suction nozzles.
The method of claim 2,
The detection unit,
A first detector positioned closer to the glass fiber filter part than the glass fiber filter part and disposed closer to the glass fiber filter part and measuring radiation of alpha nuclides and beta nuclides in the radioactive particulates collected in the glass fiber filter part; And
The radiation of the gas type gamma nucleus, which is disposed on the opposite side of the glass fiber filter unit on the basis of the char filter unit, is gamma nuclide in the radioactive particulates collected in the glass fiber filter unit, and the radioactive gas collected in the char filter unit. A second detector for measuring;
Radioactivity measuring device comprising: a.
The method of claim 5,
The first detector,
Scintillators that produce flashes by interacting with the radionuclides and the radionuclides in the radioparticulates;
A photodiode disposed on an opposite side of the glass fiber filter unit based on the scintillator and converting the flash into an electronic signal and amplifying the photodiode;
A light guide connecting the scintillator and the photodiode to transmit the flash generated by the scintillator to the photodiode;
An electron counting unit connected to the photodiode to count an electronic signal of the photodiode; And
A screw shaft connected to the motor and axially rotated by the driving of the motor;
The assembly consisting of the scintillator, the light guide, and the photodiode is geared to the screw shaft and moved along the longitudinal direction of the screw shaft when the screw shaft is rotated, the distance from the glass fiber filter unit is variable. Radioactivity measuring device.
The method of claim 5,
The apparatus case is a radioactivity measuring apparatus, characterized in that the detector support member for fixing the first detector on the inner surface is spaced apart from each other so that the inlet passage of the outside air is formed around the first detector therein.
The method of claim 5,
The device case is a radioactivity measuring device, characterized in that the screen member for filtering the foreign matter at the foremost end of the air inlet is installed.
The method of claim 2,
A replacement unit installed in the device case and configured to automatically replace the filter cartridge;
Radioactivity measuring apparatus further comprising a.
The method of claim 9,
The device case is formed therein the measurement layer in which the collecting unit and the detection unit is disposed,
A supply layer is formed above the measurement layer, and a collection layer is formed below the measurement layer, and a supply hole is provided at an upper floor dividing the measurement layer and the supply layer so that the filter cartridge passes. Holes are formed,
The replacement unit,
A plurality of new said filter cartridges received in said supply bed;
A cartridge push member which sequentially pushes the filter cartridge accommodated in the supply layer to the supply hole and supplies the filter cartridge to the measurement layer; And
A discharge chute member disposed on the collection layer and extended downwardly from the collection hole to slide the filter cartridge used in the measurement layer;
Radioactivity measuring device comprising: a.
The method of claim 10,
The char filter unit, the opening plate and the sealing plate spaced apart from each other; A first mesh network formed on the opening of the opening plate; And a second mesh net in which char is received while connecting the opening plate and the sealing plate, wherein the glass fiber filter part is fixed to the char filter part to cover the first mesh net,
The sealing plate is formed with a locking groove along the circumference,
And a locking bar having a bent end inserted into the locking groove in the measurement layer so as to receive and support the filter cartridge of the supply layer falling through the supply hole in the measurement layer.
The method of claim 11,
And a bar driving member connected to the locking bar to move the locking bar so that the locking bar rotates around the sealing plate along the locking groove of the sealing plate.
The method of claim 12,
The detection unit may include: a first detector disposed close to the glass fiber filter unit at the air inlet side; And a second detector disposed on an opposite side of the glass fiber filter unit with respect to the charcoal filter unit.
The replacement unit,
A detector case disposed to be movable in the measurement layer, wherein the second detector is accommodated and the locking bar is mounted around the detector case; And
A case connected to the detector case and configured to move the catch bar to the lower side of the supply hole, or to reciprocate the detector case to the air inlet side to position the filter cartridge caught in the catch bar close to the first detector. Drive member;
Radioactivity measuring device further comprising.
The method of claim 13,
A guide plate is installed at the driving connection end connected to the case driving member or the case driving member in the detector case.
The guide plate,
A first guide groove is formed along an outer circumferential surface of the engaging bar connected to the bar driving member so as to guide the engaging bar rotating around the sealing plate so as to slide.
And a second guide groove formed in the first guide groove so that the locking bar is reciprocated with the detector case so that the inner protrusion formed in the connection portion of the locking bar is inserted and assembled.
The method of claim 13,
On each side of the air inlet side and the opposite side of the air inlet, the filter stopper for restricting the movement of the filter cartridge is projected on the inner surface of the device case measuring layer based on the suction nozzle of the air intake unit installed in the measuring layer. Formed,
O-ring member is attached to the opening plate and the sealing plate so that the opening plate and the sealing plate is in close contact with the filter stopper when the filter cartridge moves to the air inlet side with the locking bar by moving to the detector case. Radioactivity measuring device.
The method of claim 10,
And a plurality of new filter cartridges accommodated in the measurement layer and a plurality of new filter cartridges accommodated in the supply layer.
The method of claim 9,
A controller mounted to the device case;
A transmission / reception unit electrically connected to the detection unit to transmit the radiation measurement result of the detection unit by wire or wirelessly, and receive the control value by wire or wirelessly so that a control value is input to the controller; And
GPS to inform the location and the measurement time of the collecting unit; further comprising,
And the controller controls the detection unit, the transceiver, and the GPS, and is electrically connected to the replacement unit to control the replacement unit.
The method of claim 17,
The device case is provided with a power supply unit which is electrically connected to the detection unit, the controller, the transceiver, the GPS, the replacement unit to supply electricity,
The power supply unit,
A battery installed in the device case; And
And a solar panel electrically connected with the battery to charge the battery with photovoltaic power generation.
The power supply unit by itself to produce electricity supplied to the solar panel, or a radioactivity measuring device, characterized in that to form a structure connected to an external power source.
The method of claim 17,
The device case is installed in the moving cart, the moving cart is a radioactivity measuring device, characterized in that the movement is controlled by the controller.
The method of claim 2,
The device case is a radioactivity measuring apparatus, characterized in that the cover is installed to cover the air inlet on the outer upper portion of the air inlet.
The method of claim 2,
Wherein said filter cartridge is separated from said charcoal filter part by said glass fiber filter part.

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