CN104721992B - Combined imputation type oil extraction nitrogen charging fire extinguishing system and extinguishing method - Google Patents
Combined imputation type oil extraction nitrogen charging fire extinguishing system and extinguishing method Download PDFInfo
- Publication number
- CN104721992B CN104721992B CN201510118997.5A CN201510118997A CN104721992B CN 104721992 B CN104721992 B CN 104721992B CN 201510118997 A CN201510118997 A CN 201510118997A CN 104721992 B CN104721992 B CN 104721992B
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- oil
- transformer
- nitrogen charging
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of combined imputation type oil extraction nitrogen charging fire extinguishing system, including Nitrogen source gases, switch board, it is arranged on the fire detector of each transformer top, the transformer oil storage control system with Buchholz relay on each transformer, the transformer oil draining system with row's oil control valve, the transformer Nitrogen filling system with nitrogen charging control valve are arranged on, transformer Nitrogen filling system is connected with Nitrogen source gases；Fire detector, Buchholz relay, row's oil control valve, nitrogen charging control valve are electrically connected with switch board；Nitrogen filling system also includes one-way throttle valve, nitrogen charging pipeline, constant temperature valve, nitrogen charging pipeline is connected with Nitrogen source gases, nitrogen charging pipeline is extended in oil conservater through the transformer wall body of oil conservater following side, constant temperature valve is arranged on the nitrogen charging pipeline in oil conservater, and one-way throttle valve is arranged on the nitrogen charging pipeline between nitrogen charging control valve and transformer.The present invention industrially has good application value.
Description
Technical field
The present invention relates to oil-filled transformer technical field of fire control, and in particular to a kind of combined imputation type oil extraction nitrogen charging fire extinguishing
System and extinguishing method.
Background technology
Oil-filled transformer is the core component of transformer station, and most transformer stations all use Large Oil immersion transformation
Device is used as main transformer.There are a large amount of transformer oil for playing insulating radiation in the oil conservater of oil-filled transformer.Positive reason
The flash-point of transformer oil is at 135 DEG C or so under condition, but after oil-filled transformer is using a period of time, if in transformer occurs
When loose contact, turn-to-turn short circuit or overlond running occurs in portion, oil conservater internal high temperature can be caused, high temperature can crack transformer oil
Produce the inflammable gases such as H2, C2H2.Above-mentioned inflammable gas is blended in transformer oil, causes the flash-point of transformer oil to drop to 50
DEG C or so, significantly less than 85 DEG C of the upper limit running temperature of oil-filled transformer.
With the oil-filled transformer of the inflammable gases such as H2, C2H2 in oil conservater, if there is rupture, transformer oil with it is outer
Portion's air produces contact, as long as oil storage in-cabinet temperature is more than 50 DEG C, will result in transformer oil vigorous combustion, causes oil immersed type to become
Depressor explodes, and brings the heavy losses of property.Therefore,《Thermal power plant and Substation Design fire safety rules》(GB50229-2006)
Middle regulation individual capacity should set fire extinguishing system for the main transformer of more than 125MVA.Oil extraction nitrogen charging extinguishing device is current China
The extinguishing device that most main transformer of transformer substation are used.
As shown in Fig. 2 oil extraction nitrogen charging extinguishing device includes switch board A11, transformer oil storage control system, transformer oil extraction
System, transformer Nitrogen filling system, the fire detector A10 for being arranged on transformer top.Wherein, transformer oil storage control system bag
Include and be arranged on the conservator that the fuel feed pump that oil conservater A12 tops are connected with oil conservater A12 is connected with the fuel feeding end of fuel feed pump
A1, is being provided with Buchholz relay A3 in the fuel feed pump of transformer, and flow control is provided with the fuel feed pump near conservator A1
Valve A2；Transformer oil draining system includes being arranged on the drain line A5 that oil conservater A12 upper lateral parts are connected with oil conservater A12, if
The oil pit A4 immediately below drain line A5 oil-outs is put, the row oil control valve A6 on drain line A5, drain line is arranged on
Set locations of the A5 on oil conservater A12 is less than set location of the fuel feed pump on oil conservater A12；Transformer Nitrogen filling system includes
Nitrogen source gases A7, nitrogen charging pipeline A8, Nitrogen source gases A7 are connected by nitrogen charging pipeline A8 with oil conservater A12, and nitrogen charging pipeline A8 sets
It is equipped with nitrogen charging control valve A9；Buchholz relay A3, fire detector A10, row oil control valve A6, nitrogen charging control valve A9 with control
Cabinet A11 is electrically connected, and switch board A11 is generally made up of central processing unit, touch-screen and contactless solid-state relay.When transformer event
During barrier, if oil conservater A12 internal temperatures and pressure rise are to setting value, fire detector A10 and Buchholz relay A3 works
Make, produce alarm signal to be transmitted to switch board A11；After after the switch trip of the side of main transformer three, switch board A11 instruction oil extractions are controlled
Valve A6 is opened and for oil conservater A12 inner tops deep fat quickly to be drained into oil pit A4 to discharge pressure, meanwhile, conservator A1 and oil conservater A12
Between flow control valve A2 be automatically switched off；When insulating oil drain time reaches setting duration, switch board A11 instruction nitrogen charging control valves A9
Open by nitrogen charging pipeline A8 to the nitrogen that setting pressure and flow are injected in oil conservater A12.Nitrogen enters in oil conservater A12,
Insulating oil top is risen to from insulating oil bottom with intensive bubble form, nitrogen gradually covers oil meter face, contain oil meter face oxygen
Amount is reached at least, effectively fire-retardant, and disaster hidden-trouble is eliminated in A-stage.Simultaneously in nitrogen uphill process, due to oil conservater A12
Interior upper and lower oil reservoir is stirred mixing, the quick temperature reduced with air contact pasta.
But because transformer station has extremely complex electromagnetic environment, fire detector A10 and Buchholz relay A3 use one
After the section time, rate of false alarm increases with the increase of use time, and wrong report can allow oil extraction nitrogen charging extinguishing device malfunction, cause main transformer
Depressor trips, and causes large area burst power outage.In order to reduce the harm that brings of wrong report, transformer station is actual when runing, every
Platform immersion transformer side sets a set of oil extraction nitrogen charging extinguishing device, is manually operated oil extraction nitrogen charging extinguishing device to go out except transformation
The disaster hidden-trouble of device.
Above-mentioned technical proposal, will realize the fire extinguishing system construction of whole transformer station, it is necessary to independent to every transformer configuration
Oil extraction nitrogen charging extinguishing device, fire extinguishing system construction and maintenance cost are very high.Even if building up, fire extinguishing work is carried out to multiple transformers
, it is necessary to repeatedly manually operated, the personal safety of the relatively low operating personnel of operating efficiency cannot be ensured industry.
The Chinese patent literature of Publication No. CN203763724U, needs to install an oil extraction nitrogen charging for each transformer
Extinguishing device, multiple transformers put out a fire needs the technical problem for carrying out multiple manual working, discloses a kind of main transformer
Oil extraction nitrogen charging extinguishing device.The device by fire detector, selection cut-off valve, selection nitrogen fill valve, selection draining valve, fire hydrant cabinet,
Switch board is constituted；Selection draining valve, selection nitrogen fill valve, selection cut-off valve are magnetic valve；A set of oil extraction is provided with switch board
Nitrogen charging extinguishing device control loop, the control loop receives the fire letter that the fire detector at the top of two main transformers sends
Number, and control selections draining valve, selection nitrogen fill valve and selection cut-off valve；It is provided with fire hydrant cabinet for two main transformer nitrogen charging
A set of nitrogen cylinder of fire extinguishing；The oil extraction nitrogen charging extinguishing device can simultaneously protect two main transformers；When main transformer occurs fire
During calamity, fire signal is uploaded to switch board by the fire signal that the fire detector at the top of the main transformer that catches fire sends, it is determined that
Owner of the house where a fire started's transformer, sends signal and opens the selection draining valve that correspond on owner of the house where a fire started's transformer drain line, by part by switch board
Transformer oil drains into emergency oil pond；Switch board sends the selection that signal-off catches fire in main transformer conservator to fuel tank feed circuit
Cut-off valve；Switch board sends the selection nitrogen fill valve that signal is unlocked on the nitrogen charging pipeline of owner of the house where a fire started's transformer, against owner of the house where a fire started's transformer
Nitrogen charging, reaches the effect of fire extinguishing.But after fire detector and Buchholz relay are not solved due to the program using a period of time,
Rate of false alarm increases with the increase of use time, and wrong report can allow oil extraction nitrogen charging device malfunction, cause main transformer to trip, and cause
The technical problem of large area burst power outage, therefore, the program is a kind of possible technical realization, does not have industry application
Value.
The Chinese patent literature of Publication No. CN201643489U, needs to install an oil extraction nitrogen charging for each transformer
Extinguishing device, multiple transformers put out a fire needs the technical problem for carrying out multiple manual working, as shown in figure 3, disclosing one
Kind of combined imputation type oil extraction nitrogen charging fire extinguishing system, the system include fire detector B4 on each single-phase transformer and watt
This relay B3, Buchholz relay B3 connect conservator B1 by oil-control valve, and each single-phase transformer is each equipped with drain line
B9 and nitrogen charging air pipe B10, sets draining valve B11 on the drain line B9 of each single-phase transformer；The system also includes one
The outlet of group nitrogen cylinder B5, nitrogen cylinder B5 sets a header B12, and at least two selector valves are connected on header B12
B13, selector valve B13 are communicated with nitrogen charging air pipe B10；The selector valve B13 of each single-phase transformer, draining valve B11, fire
Detector B4, Buchholz relay B3 and flow control valve B2 are connected with controlling alarm cabinet B7.The oil extraction nitrogen charging extinguishing device is realized
Optimum management to multiple single-phase transformer extinguishing actions.But fire detector and gas relay are not solved due to the program
After device is using a period of time, rate of false alarm increases with the increase of use time, and wrong report can allow oil extraction nitrogen charging device malfunction, cause
Main transformer trips, and causes the technical problem of large area burst power outage, therefore, the program is a kind of technical realization
May, there is no industry application value.
In sum, an existing switch board carries out the technical scheme of extinguishing operation to multiple oil-filled transformers, by
After without fire detector and Buchholz relay is solved using a period of time, rate of false alarm increases with the increase of use time
Plus, wrong report can allow oil extraction nitrogen charging extinguishing device malfunction, cause main transformer to trip, and cause large area to happen suddenly the technology of power outage
Problem, is pertaining only to a kind of technical realization possibility, does not have industry application value.
The content of the invention
The technical problems to be solved by the invention are to provide the switch board that can be used in a kind of industry to multiple oil
Immersion transformer carries out the combined imputation type oil extraction nitrogen charging fire extinguishing system of extinguishing operation, so as to further reduce the transformation of transformer station
The use cost of device oil extraction nitrogen charging fire extinguishing system, improves the running quality and operational efficiency of oil extraction nitrogen charging fire extinguishing system.
The technical proposal for solving the technical problem of the invention is：
Combined imputation type oil extraction nitrogen charging fire extinguishing system, including Nitrogen source gases, switch board, are arranged on each transformer top
Fire detector, is arranged on the transformer oil storage control system with Buchholz relay, band row's oil control valve on each transformer
Transformer oil draining system, the transformer Nitrogen filling system of valve is controlled with nitrogen charging, the transformer Nitrogen filling system of each transformer with
Nitrogen source gases are connected；The fire detector of each transformer, Buchholz relay, row's oil control valve, nitrogen charging control valve with control
Cabinet electrical connection processed；The Nitrogen filling system of each transformer also includes one-way throttle valve, nitrogen charging pipeline, constant temperature valve, nitrogen charging pipeline
Source of the gas connection end is connected with Nitrogen source gases, and the oil conservater connection end of nitrogen charging pipeline passes through the transformer wall body of oil conservater following side
Extend in oil conservater, constant temperature valve is arranged on the nitrogen charging pipeline in oil conservater, one-way throttle valve is arranged on nitrogen charging control valve
On nitrogen charging pipeline between transformer.
Further, the nitrogen charging pipeline of the transformer Nitrogen filling system of each transformer is in correspondence transformer external shunt at least two
Root nitrogen charging branch pipe, the transformer wall body that every nitrogen charging branch pipe both passes through oil conservater following side is extended in oil conservater, in oil conservater
Constant temperature valve is provided with every interior nitrogen charging branch pipe.
Further, Nitrogen source gases include nitrogen cylinder group and header, and nitrogen cylinder group includes at least two nitrogen cylinders, afflux
Pipe includes gas transmission supervisor and at least two confluxing branch pipe of being arranged on parallel on gas transmission supervisor, each conflux branch pipe and gas transmission supervisor
It is connected, the connection corresponding with header branch pipe that confluxes of the gas outlet of each nitrogen cylinder, gas transmission supervisor and nitrogen charging pipeline
It is connected.
Further, the transformer Nitrogen filling system of each transformer also includes air bleeding valve, and air bleeding valve is arranged on corresponding transformer
On nitrogen charging pipeline between the one-way throttle valve and transformer of Nitrogen filling system.
The also soluble technical problem of the present invention is to provide a kind of combined imputation type oil extraction nitrogen charging that can industrially apply
Extinguishing method, comprises the following steps：
Step 1, the control of nitrogen gas-storing capacity：With oil extraction nitrogen charging flame failure protection in need oil-filled transformer in, oil storage
The nitrogen amount that maximum oil-filled transformer of cabinet capacity carries out a nitrogen charging fire extinguishing calculates a reference value as nitrogen finimeter, will
The nitrogen finimeter calculate a reference value multiply 2 as Nitrogen source gases nitrogen gross reserves, this is filled with to Nitrogen source gases by nitrogen charging device
The nitrogen of nitrogen gross reserves；Nitrogen finimeter calculate a reference value computing formula be：
V=K*S*Q*T
Wherein, V is that nitrogen finimeter calculates a reference value, and K is the safety of that maximum oil-filled transformer of oil conservater capacity
Coefficient, the span of K is 1.05~1.30；S is the horizontal plane of that maximum oil-filled transformer of oil conservater capacity
Product；Q is the nitrogen charging intensity that nitrogen charging pipeline carries out nitrogen charging fire extinguishing to that maximum oil-filled transformer of oil conservater capacity, is also
The nitrogen amount that unit projection area passes through within the unit interval；T is nitrogen charging pipeline to that maximum oil immersed type of oil conservater capacity
Transformer carries out the duration of nitrogen charging fire extinguishing.
Step 2, pre- oil extraction nitrogen charging of alarming：On switch board an address code, control are distributed to each oil-filled transformer
After cabinet receives the alarm signal of Buchholz relay or fire detector, judge which oil immersed type transformation is alarm signal come from
Device, and the oil extraction time carried out needed for the oil-filled transformer and the required nitrogen amount being passed through are recalled, switch board oil immersed type change
Row's oil control valve of the oil draining system of depressor is opened, and discharges the insulating oil in the transformer oil storage, meanwhile, conservator and oil conservater
Between flow control valve be automatically switched off；When insulating oil drain time reaches scheduled duration, switch board instructs the transformer of the transformer
The nitrogen charging control valve of Nitrogen filling system is opened, to the nitrogen that setting pressure and flow are passed through in nitrogen charging pipeline；
Step 3, the fire extinguishing of temperature control nitrogen charging：It is fixed when the insulation oil temperature in oil storage tank of oil immersed transformer reaches predetermined temperature
Warm valve opening, by being filled with nitrogen in nitrogen blanketing valve road direction Oil Tank, carries out nitrogen charging fire extinguishing.
Further, also include excluding the residual nitrogen in nitrogen charging pipeline after step 3：Filled in the transformer of each transformer
Air bleeding valve is set on nitrogen charging pipeline between the one-way throttle valve and transformer of nitrogen system, when constant temperature valve closing, oil extraction nitrogen charging
After the completion of operation, air bleeding valve is opened, the nitrogen discharge that will be remained in nitrogen charging pipeline falls.
Combined imputation type oil extraction nitrogen charging fire extinguishing system of the invention is applied to carries out oil extraction nitrogen charging to the transformer of transformer station
Extinguishing operation, it can also be used for industrial zone or the transformer cluster of Campus and carries out oil extraction nitrogen charging extinguishing operation.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, combined imputation type oil extraction nitrogen charging fire extinguishing system of the invention, alarm signal is based on to oil storage compared to prior art
Nitrogen is passed through in cabinet, the transformer nitrogen charging fire-fighting technique scheme for allowing transformer switch to trip, the present invention is using based on alarm signal
Be passed through nitrogen in advance in nitrogen charging pipeline, based on the insulating oil oil temperature in oil conservater reach fire alarm temperature open constant temperature valve to
Nitrogen is passed through in oil conservater, the transformer nitrogen charging fire-fighting technique scheme for allowing transformer switch to trip.The present invention is not reducing existing
In the case of the nitrogen charging timeliness of technology, using being immersed in insulating oil, the high-intensity electromagnetic radiation of transformer station is acted to it and not produced
Any influence of life, the constant temperature valve being consistent with insulation oil temperature controls whether that nitrogen charging is made to nitrogen is passed through in oil conservater
The accuracy of industry is high, good reliability, and stability is high, in time can eliminate in A-stage the disaster hidden-trouble in oil conservater, greatly
The possibility of transformer switch mistrip is reduced, large area burst power outage accordingly would not be also caused.Because the present invention is adopted
With the constant temperature valve independently of switch board come precise control nitrogen charging operation, so as to by any of fire detector and Buchholz relay
The technology consequence of actuation of an alarm is limited in pre- nitrogen charging preparation, would not also be made because of fire detector or Buchholz relay wrong report
Nitrogen charging is missed to oil conservater into oil extraction nitrogen charging fire extinguishing system, causes transformer to trip, cause large area burst power outage.Therefore make
For the switch board and transformer Nitrogen filling system of existing oil extraction nitrogen charging fire extinguishing system core can accomplish as simple as possible in design,
Functionally unexpectedly may targetedly, manufacturing cost and maintenance cost can also be greatly reduced, also just because of this, switch board of the invention
Component can control operation for the transformer Nitrogen filling system of more oil-filled transformers provides the pre- nitrogen that is passed through, and be more oil immersed types
The transformer oil draining system of transformer provides oil extraction control operation, and Nitrogen source gases component of the invention can become for more oil immersed types
The transformer Nitrogen filling system of depressor provides high pressure nitrogen, namely the present invention provides the switch board that can be used in a kind of industry
Multiple oil-filled transformers are carried out with the combined imputation type oil extraction nitrogen charging fire extinguishing system of extinguishing operation.
2nd, combined imputation type oil extraction nitrogen charging fire extinguishing system of the invention, due to being provided with constant temperature valve using at least two
Nitrogen charging branch pipe can targeted specifically set nitrogen charging branch pipe to nitrogen charging in oil conservater according to disaster hidden-trouble occurrence probability point higher, from
And disaster hidden-trouble can be quickly reduced, it is thoroughly to eliminate disaster hidden-trouble to gain time.
3rd, combined imputation type oil extraction nitrogen charging fire extinguishing system of the invention, is coupled together at least due to using by header
Two nitrogen cylinders can effectively reduce the Nitrogen source gases construction cost of the transformer station in remote area and make as Nitrogen source gases
With cost, the ease for use and environmental suitability of oil-filled transformer oil extraction nitrogen charging fire extinguishing system of the invention are improved.
4th, combined imputation type oil extraction nitrogen charging extinguishing method of the invention, due to using to each oil-filled transformer distribution one
Individual address code, realizes the positioning to alarm signal, and row's oil control valve oil extraction, control nitrogen charging control are precisely controlled for alarm signal
Valve 9 is passed through nitrogen in advance to the nitrogen charging pipeline of corresponding transformer, is follow-up to prepare to being passed through nitrogen in oil conservater；Due in
The constant temperature valve being placed in oil conservater insulating oil senses the temperature of insulating oil, and nitrogen blanketing valve is controlled by the unlatching of constant temperature valve
Nitrogen is filled with road direction oil conservater, nitrogen charging fire extinguishing is carried out；Alarm signal control nitrogen blanketing valve road direction is based on relative to prior art to store up
Nitrogen is filled with Oil Tank, nitrogen charging fire extinguishing is carried out；Combined imputation type oil extraction nitrogen charging extinguishing method of the invention, when nitrogen charging is not reduced
In the case of effect, using the nitrogen Expenses Cost of very little, in just effectively eliminating the prior art of alarm signal control nitrogen charging pipeline
Alarm signal wrong report harm caused by method, while the combined imputation type of the invention row based on the oil temperature that insulated in oil conservater
Oily nitrogen charging extinguishing method, specific aim is stronger, and accuracy rate is higher, and stability is higher, and the disaster hidden-trouble in oil conservater can disappear in time
Go out in A-stage, its industrial applicability is also more preferable.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of the oil extraction nitrogen charging device of prior art.
Fig. 3 is the structural representation of CN201643489U combined imputation type oil extraction nitrogen charging fire extinguishing systems.
Fig. 4 is the flow chart of combined imputation type oil extraction nitrogen charging extinguishing method of the invention.
Fig. 5 is that combined imputation type oil extraction nitrogen charging extinguishing method of the invention is preferable to carry out flow chart.
Reference is expressed as in Fig. 1：1- conservators, 2- flow control valves, 3- Buchholz relays, 4- oil pits, 5- oil exit pipes
Road, 6- row oil control valve, 7- Nitrogen source gases, 8- nitrogen charging pipeline, 9- nitrogen charging control valve, 10- fire detectors, 11- control cabinets,
12- oil conservaters, 501- oil extractions pipe valve, 801- one-way throttle valves, 802- air bleeding valves, 803- constant temperature valves.
Reference is expressed as in Fig. 2：A1- conservators, A2- flow control valves, A3- Buchholz relays, A4- oil pits, A5- rows
Oil pipe line, A6- row oil control valve, A7- Nitrogen source gases, A8- nitrogen charging pipeline, A9- nitrogen charging control valve, A10- fire detectors,
A11- control cabinets, A12- oil conservaters, A501- oil extractions pipe valve, A801- one-way throttle valves, A802- air bleeding valves.
Reference is expressed as in Fig. 3：B1- conservators, B2- flow control valves, B3- Buchholz relays, B4- detections
Device, B5- nitrogen cylinders, B6- fire hydrant cabinets, B7- controlling alarm cabinets, B8- oil pits, B9- drain lines, B10- nitrogen charging air pipes, B11-
Draining valve, B12- headers, B13- selector valves.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, combined imputation type oil extraction nitrogen charging fire extinguishing system of the invention, including Nitrogen source gases 7, switch board 11,
The fire detector 10 of each transformer top is arranged on, the transformer with Buchholz relay 3 on each transformer is arranged on
Oil storage control system, the transformer oil draining system with row's oil control valve 6, the transformer Nitrogen filling system that valve 9 is controlled with nitrogen charging, each
The transformer Nitrogen filling system of transformer is connected with Nitrogen source gases 7；The fire detector 10, Buchholz relay of each transformer
3rd, row's oil control valve 6, nitrogen charging control valve 9 is electrically connected with switch board 11；The Nitrogen filling system of each transformer also includes unidirectional section
Stream valve 801, nitrogen charging pipeline 8, constant temperature valve 803, the source of the gas connection end of nitrogen charging pipeline 8 are connected with Nitrogen source gases 7, nitrogen charging pipeline
8 oil conservater connection end extends in oil conservater 12 through the transformer wall body of the following side of oil conservater 12, and constant temperature valve 803 is set
On nitrogen charging pipeline 8 in oil conservater 12, one-way throttle valve 801 is arranged on the nitrogen blanketing valve between nitrogen charging control valve 9 and transformer
On road 8.
When the present invention is implemented, as shown in figure 1, can at least two transformers be carried out with oil extraction nitrogen charging extinguishing operation.
When the present invention is implemented, as shown in figure 1, the transformer oil storage control system being arranged on each transformer includes oil
Pillow 1, fuel feed pump, flow control valve 2, wherein conservator 1 are connected by fuel feed pump with oil conservater 12, and flow control valve 2 is positioned close to conservator 1
Fuel feed pump on, the above-mentioned part of transformer oil storage control system is the part of oil-filled transformer；It is arranged on each change
Transformer oil draining system is constituted by oil pit 4, drain line 5 on depressor.
As shown in figure 1, those skilled in the art, the oil capacity of the oil conservater 12 according to the maximum transformer of oil content, really
Determine nitrogen capacity and maximum nitrogen air pressure that Nitrogen source gases 7 should have, determine the volume of oil pit 4；According to institute's use in need
The present invention carries out the space layout situation of the oil-filled transformer of oil extraction nitrogen charging extinguishing operation, determines Nitrogen source gases 7, switch board 11
Set location；According to the physical dimension of itself and surrounding environment of each oil-filled transformer, oil pit 4, detection is determined
The set location of device 10；The oil-filled transformer quantity of oil extraction nitrogen charging extinguishing operation is carried out as needed, determines switch board 11
The number of control logic, according to the layout of oil-filled transformer, switch board 11 distributes an address to each oil-filled transformer
Code, the address code is to should the Buchholz relay 3 of oil-filled transformer, fire detector 10, row's oil control valve 6, nitrogen charging control
Valve 9, enables switch board to judge alarm signal from which oil-filled transformer, it is necessary to control the oil extraction of which oil-filled transformer
Control valve 6 is opened, and how long the oil extraction time is, it is necessary to control the nitrogen charging of which oil-filled transformer to control valve 9 to open, nitrogen charging amount is
How much, how long the nitrogen charging time is；The specification and layout of drain line 5 and nitrogen charging pipeline 8 are determined according to above-mentioned set location；
Caliber specification according to drain line 5, it is determined that the specification of row's oil control valve 6, the caliber specification according to nitrogen charging pipeline 8, it is determined that filling
Nitrogen control valve 9, one-way throttle valve 801, the specification of constant temperature valve 803.
Nitrogen source gases 7 are high-pressure air source, and it can be high pressure nitrogen pipe network, it would however also be possible to employ at least two nitrogen cylinder groups
Into nitrogen cylinder group, the gas outlet of each nitrogen cylinder connection corresponding with header branch pipe that confluxes, by header gas transmission
Supervisor to provide high pressure nitrogen to nitrogen charging pipeline 8.Large-scale main transformer cluster for large-scale substation then uses high pressure nitrogen
Pipe network is used as Nitrogen source gases 7；Nitrogen is then used for medium-sized, small-sized main transformer cluster, or less than 3 large-scale main transformers
Bottle group.
Wherein, constant temperature valve 803, is a kind of gas-liquid valve for just coming into operation in the recent period, and it has the temperature when insulating oil
During higher than predetermined temperature, constant temperature valve 803 is automatically opened up, and when the temperature of insulating oil is less than predetermined temperature, constant temperature valve 803 is certainly
The dynamic technical role closed, the operating temperature of constant temperature valve 803 is adjustable from 70 DEG C to 170 DEG C, and those skilled in the art can be with root
It is configured according to being actually needed, such as the constant temperature delivery water valve of the vast Da Rui new sciences and technologies Co., Ltd in Beijing；Nitrogen charging control valve 9, oil extraction control
Valve processed 6 can be that motor-driven valve can also be magnetic valve, generally using motor-driven valve；One-way throttle valve 801 is one-way conduction valve, its
Only allow nitrogen to flow to oil conservater 12 from Nitrogen source gases 7 along nitrogen charging pipeline 8, one-way throttle valve 801 and oil storage are not allowed flow into
Nitrogen between cabinet 12 flows back to Nitrogen source gases 7.
During implementation, those skilled in the art are set in the fuel feed pump of the oil storage control system first on each transformer
Buchholz relay 3, the set location of Buchholz relay 3 sets fire detector near transformer at the top of each transformer
10；Nitrogen source gases 7 are then set, nitrogen charging pipeline 8 is opened up on the transformer wall body of the following side of oil conservater 12 of each transformer
Providing holes, the connection end of oil conservater 12 of the nitrogen charging pipeline 8 of each transformer is extended in the oil conservater 12 by the providing holes,
Constant temperature valve 803 is set on the nitrogen charging pipeline 8 in oil conservater 12, and constant temperature valve 803 is immersed in the insulating oil in oil conservater 12,
Nitrogen charging control valve 9 is being set on the nitrogen charging pipeline 8 of Nitrogen source gases 7, the nitrogen blanketing valve between valve 9 and transformer is being controlled in nitrogen charging
One-way throttle valve 801 is set on road 8, and the connection end of Nitrogen source gases 7 of the nitrogen charging pipeline 8 is connected with Nitrogen source gases 7.By above-mentioned
Step can be made into the transformer Nitrogen filling system of each oil-filled transformer；Then the pre-determined bit around each oil-filled transformer
Oil pit 4 is installed, the providing holes of drain line 5 is opened up on the transformer wall body of each upper lateral part of oil conservater 12, drain line 5 sets
Hole is put less than set location of the fuel feed pump on the oil conservater 12, by the providing holes of drain line 5, drain line 5 and oil conservater
12 are connected, and the oil-out of drain line 5 is located at the surface of oil pit 4, and row's oil control valve 6 is set on drain line 5, pass through
Above-mentioned steps can be made into the transformer oil draining system of each oil-filled transformer；Then switch board 11 is arranged on precalculated position,
The fire detector 10 of each transformer, Buchholz relay 3, row's oil control valve 6, nitrogen charging control valve 9 are electrically connected into corresponding control
A control logic in cabinet processed 11, and distribute an address code to each transformer on switch board 11.By above-mentioned steps
Can be made into oil-filled transformer oil extraction nitrogen charging fire extinguishing system of the invention.
When the present invention is implemented, high-pressure manometer, pressure-reducing valve, low pressure pressure are additionally provided with the export pipeline of Nitrogen source gases 7
Power table, high-pressure manometer is electrically connected with switch board 11, and the gas storage of Nitrogen source gases 7 can be judged by high-pressure manometer switch board 11
Amount.
When using, when the inflammable gases such as H2, the C2H2 in the oil conservater 12 of a certain oil-filled transformer accumulation to certain journey
Degree, inflammable gas is poured in the fuel feed pump of the transformer, and is advanced to conservator 1 along fuel feed pump, when arrival Buchholz relay 3
Inflammable gas concentration reach it is a certain amount of after, Buchholz relay 3 works, produce alarm signal simultaneously pass to the correspondence on switch board 11
Control logic.Switch board judges that alarm signal, from which oil-filled transformer, instructs the oil extraction of the oil draining system of the transformer
Control valve 6 is opened, and the interior insulation of oil conservater 12 oil of the transformer quickly drains into oil pit 4 to discharge pressure by drain line 5, together
When, the flow control valve 2 between conservator 1 and oil conservater 12 is automatically switched off；When insulating oil drain time reaches setting duration, switch board 11
Instruct the nitrogen charging control valve 9 of the transformer Nitrogen filling system of the transformer to open, pressure and stream are set to being passed through in nitrogen charging pipeline 8
The nitrogen of amount.Because constant temperature valve 803 is immersed in the insulating oil in oil conservater 12, the valve body temperature of constant temperature valve 803 with it is exhausted
The temperature of edge oil is consistent, and insulation oil temperature is not reaching to the opening temperature of constant temperature valve 803, and constant temperature valve 803 keeps closing
Closed state, the nitrogen that unlatching nitrogen charging control valve 9 is filled with is rested in nitrogen charging pipeline 8, and transformer continues to keep the normal shape that works
State.Once insulation oil temperature rises to the opening temperature of constant temperature valve 803, constant temperature valve 803 is opened, and the switch of transformer is jumped
Lock, nitrogen enters in oil conservater 12, and with intensive bubble form, from insulating oil bottom to insulating oil, top springs up, the nitrogen for springing up
Upper and lower oil reservoir in oil conservater 12 is caused to stir mixing, and air contact oil surface temperature rapid decrease, when nitrogen rises to insulation
Oily top, blanket of nitrogen is formed on insulating oil top, effectively fire-retardant by the oxygen gases separated in insulating oil and air, and fire is hidden
Trouble is eliminated in A-stage.When uniform temperature is dropped at the temperature of the interior insulation of oil conservater 12 oil, constant temperature valve 803 is closed.
When the fire detector 10 at the top for being arranged on a certain oil-filled transformer is alarmed, control is passed in alarm signal
After cabinet processed 11, as working method of the invention passes to the working method after switch board 11 with the alarm signal of Buchholz relay 3,
Only when the insulation oil temperature in oil conservater 12 reaches the opening temperature of constant temperature valve 803, constant temperature valve 803 is just opened, just can be to
The nitrogen injection of oil conservater 12, the switch of transformer can just trip.
When the fire detector 10 at the top for being arranged on a certain oil-filled transformer, and be arranged on gas in fuel feed pump after
Electrical equipment 3 to alarm, and after respective alarm signal is passed into switch board 11, working method of the invention and Buchholz relay
The working method that 3 alarm signals are passed to after switch board 11 is the same, only when the insulation oil temperature in oil conservater 12 reaches constant-temperature valve
The opening temperature of door 803, constant temperature valve 803 is just opened, just can be to the nitrogen injection of oil conservater 12, and the switch of transformer can just be jumped
Lock.
Above is basic embodiment of the invention.From above-mentioned implementation process can be seen that each voltage device by fire
The alarm that fire detector 10, Buchholz relay 3, switch board 11, Nitrogen source gases 7, nitrogen charging pipeline 8, nitrogen charging control valve 9 are combined is filled
Nitrogen system, is follow-up to make to being passed through the technology that nitrogen prepares in oil conservater 12 with nitrogen is passed through in advance in nitrogen charging pipeline 8
With, namely switch board 1 automatically controls operation for alarm signal, from existing oil extraction nitrogen charging fire extinguishing system first to nitrogen charging pipeline
8 are passed through nitrogen, directly through nitrogen charging pipeline 8 to be filled with oil conservater 12 nitrogen be limited to of the invention it is pre- logical to nitrogen charging pipeline 8
Enter nitrogen, it is accurate so as to the technology consequence of fire detector 10 and any actuation of an alarm of Buchholz relay 3 is limited in into pre- nitrogen charging
It is standby upper, also would not caused by fire detector 10 or Buchholz relay 3 are reported by mistake oil extraction nitrogen charging fire extinguishing system to oil conservater 12
Nitrogen charging, causes transformer to trip by mistake, causes large area burst power outage.Nitrogen charging pipeline 8 and the constant temperature being built in insulating oil
Valve 803 is combined, with according in oil conservater 12 insulation oil temperature determine when to be filled with oil conservater 12 nitrogen and what
When stop being filled with the technical role of nitrogen, namely filled to automatically control using the insulating oil oil temperature for having decision influence to fire
Nitrogen operation, so as to realize that transformer has fire really only when the insulation oil temperature in oil conservater 12 reaches early warning temperature
May, just allow transformer switch to trip, nitrogen quickly is passed through in oil conservater 12, disaster hidden-trouble is eliminated in A-stage；Together
When, based on above-mentioned technical role, nitrogen charging pipeline 8 and the constant temperature valve 803 being built in insulating oil are combined, also with making transformation
Device Nitrogen filling system is simpler in design in the outer portion of transformer oil storage 12 and the response alarm signal of corresponding switch board 11 part
It is single, only need to realize responding the alarm signal of fire detector 10 and Buchholz relay 3, and to pre- logical in nitrogen charging pipeline 8
Enter the technical role of nitrogen；Nitrogen source gases 7 have for the transformer Nitrogen filling system of multiple transformers provides high pressure nitrogen
Technical role, so that the use cost of the relative service efficiency for improving Nitrogen source gases 7 and reduction Nitrogen source gases 7.
As can be seen here, see on the whole, each part of the invention is technically interrelated, phase interworking in operation
Close.Alarm signal is based on to nitrogen is passed through in oil conservater 12 compared to prior art, and the transformer for allowing transformer switch to trip fills
Nitrogen fire-fighting technique scheme, the present invention is used and is passed through nitrogen in advance in nitrogen charging pipeline 8 based on alarm signal, based in oil conservater 12
Insulating oil oil temperature reaches fire alarm temperature and opens constant temperature valve 803 to nitrogen is passed through in oil conservater 12, allows transformer switch to jump
The transformer nitrogen charging fire-fighting technique scheme of lock.The present invention in the case of the nitrogen charging timeliness for not reducing prior art, using immersion
In insulating oil, the high-intensity electromagnetic radiation of transformer station is acted to it and had no effect, and is consistent with insulation oil temperature
Constant temperature valve 803 control whether that to being passed through nitrogen in oil conservater 12 accuracy of nitrogen charging operation is high, good reliability, stabilization
Property it is high, the disaster hidden-trouble in oil conservater 12 can be eliminated in A-stage in time, greatly reduce transformer switch mistrip can
Energy property, accordingly would not also cause large area burst power outage.Because the present invention is using the constant-temperature valve independently of switch board 11
Door 803 carrys out precise control nitrogen charging operation, so as to by after the technology of fire detector 10 and any actuation of an alarm of Buchholz relay 3
Fruit is limited in pre- nitrogen charging preparation, oil extraction nitrogen charging would not also be gone out caused by fire detector 10 or Buchholz relay 3 are reported by mistake
Fiery system misses nitrogen charging to oil conservater 12, causes transformer to trip, and causes large area burst power outage.Therefore as existing oil extraction
The switch board 11 and transformer Nitrogen filling system of nitrogen charging fire extinguishing system core can accomplish as simple as possible in design, functionally unexpectedly
May targetedly, manufacturing cost and maintenance cost can also be greatly reduced, and also just because of this, the component of switch board of the invention 11 can
The pre- nitrogen that is passed through is provided with the transformer Nitrogen filling system for more oil-filled transformers and control operation, be more oil-filled transformers
Transformer oil draining system provide oil extraction control operation, the component of Nitrogen source gases of the invention 7 can be more oil-filled transformers
Transformer Nitrogen filling system high pressure nitrogen is provided, namely the present invention provides the switch board that can be used in a kind of industry to many
Individual oil-filled transformer carries out the combined imputation type oil extraction nitrogen charging fire extinguishing system of extinguishing operation.
The disaster hidden-trouble of quick eliminating transformer is wanted, it is necessary to the insulating oil fast cooling in oil conservater 12, while quickly
One layer of blanket of nitrogen is formed at the top of the interior insulation of oil conservater 12 oil, by the oxygen gases separated in insulating oil and air.Existing oil extraction
Nitrogen charging fire extinguishing system is passed through in oil conservater 12 only with a nitrogen blanketing valve, and usually the disaster hidden-trouble point in oil conservater 12 is not often
The surface of nitrogen blanketing valve in oil conservater 12, therefore the temperature of insulating oil at disaster hidden-trouble point can not be quickly reduced, can not
It is quick at the top of insulating oil at disaster hidden-trouble point to form blanket of nitrogen.
In order to improve nitrogen charging fire extinguishing quality and nitrogen charging fire-fighting efficiency, the present invention is further on the basis of basic embodiment
Improve, as shown in figure 1, the first preferred embodiment of the invention is, the nitrogen blanketing valve of the transformer Nitrogen filling system of each transformer
In correspondence transformer external shunt at least two nitrogen charging branch pipes, every nitrogen charging branch pipe both passes through the change of the following side of oil conservater 12 on road 8
Depressor wall body is extended in oil conservater 12, and constant temperature valve 803 is provided with the every nitrogen charging branch pipe in oil conservater 12.
During implementation, nitrogen charging pipeline 8 is split at least two nitrogen charging branch pipes, original nitrogen charging pipeline outside each transformer
8 main lines can will set nitrogen charging branch pipe access apertures as a nitrogen charging branch pipe on the transformer wall body of the following side of oil conservater 12,
Nitrogen charging branch pipe is entered in oil conservater 12 by nitrogen charging branch pipe access apertures, and constant temperature is set on the every nitrogen charging branch pipe in oil conservater 12
Valve 803.In order to quickly eliminate due to transformer, design defect causes partial points to easily become the fire of disaster hidden-trouble point in itself
Hidden danger, nitrogen charging branch pipe access apertures first is preferred embodiment the transformer wall body in the lower section for easily becoming disaster hidden-trouble point
Upper setting nitrogen charging branch pipe access apertures, the gas outlet of nitrogen charging branch pipe is located at the underface for easily becoming disaster hidden-trouble point；In order to improve
Nitrogen is filled with by nitrogen charging branch pipe, in time each disaster hidden-trouble point in treatment oil conservater 12, nitrogen charging branch pipe access apertures second is excellent
The implementation method of choosing is distributed on the transformer wall body of the outer peripheral face of oil conservater 12.
When using, when the top of oil conservater 12, there is disaster hidden-trouble in certain point, according on the nearest nitrogen charging branch pipe of the disaster hidden-trouble point
Constant temperature valve 803 take the lead in open, be filled with nitrogen, the nitrogen for springing up causes the insulating oil of the disaster hidden-trouble point bottom to roll up and down
Agitation, the insulation oil temperature at disaster hidden-trouble point is quickly reduced, while forming nitrogen on insulating oil top in the disaster hidden-trouble point
Gas-bearing formation, it is effectively fire-retardant by the oxygen gases separated in insulating oil and air, disaster hidden-trouble is eliminated in A-stage.By fire
The insulating oil of hidden danger point bottom is rolled agitation up and down, and other constant temperature valves 803 for being arranged on the bottom of oil conservater 12 are also opened in succession,
The quick blanket of nitrogen that all standing is formed in the internal upper part of oil conservater 12, the oxygen in insulating oil and air point is completely separated.
Be can be seen that due to according to disaster hidden-trouble occurrence probability from the implementation process of the first preferred embodiment of the invention
Point higher, sets nitrogen charging branch pipe targeted specifically, therefore also just can quickly reduce disaster hidden-trouble, is thoroughly to eliminate disaster hidden-trouble to win
The time of obtaining.
The construction cost of high pressure nitrogen pipe network is higher, and with the development of Transformer Manufacturing Technology, fire occurs in transformer
Probability is also gradually decreased, therefore also very high as the use cost of Nitrogen source gases 7 using high pressure nitrogen pipe network, and it is only applicable to right
The oil extraction Nitrogen filling system of large-scale main transformer cluster provides Nitrogen source gases 7.For medium and small sized substation, it only only has several medium-sized
Or large-scale main transformer, and because the live load of transformer is relatively low, the utilization rate of Nitrogen source gases 7 of oil extraction Nitrogen filling system is low,
But can not lack, to be also easy to be configured according to the surrounding environment of transformer.
Therefore, the high pressure nitrogen of abundance is provided for the oil extraction nitrogen charging fire extinguishing system for medium-sized or large-scale main transformer,
The present invention is further improved on the basis of the second preferred embodiment, as shown in figure 1, the 3rd preferred embodiment of the invention
For Nitrogen source gases 7 include nitrogen cylinder group and header, and nitrogen cylinder group includes at least two nitrogen cylinders, and header includes gas transmission
Supervisor and at least two confluxing branch pipe of being arranged on parallel on gas transmission supervisor, each branch pipe that confluxes is responsible for gas transmission and is connected, often
The gas outlet of individual nitrogen cylinder connection corresponding with header branch pipe that confluxes, gas transmission supervisor is connected with nitrogen charging pipeline 8.
During implementation, nitrogen cylinder group, the gas outlet of each nitrogen cylinder and header are constituted using at least two nitrogen cylinders
One conflux branch pipe correspondence connect, so as to constitute Nitrogen source gases 7.During implementation, selector valve can be set in the branch pipe that confluxes, pass through
Switch selector valve realizes that nitrogen cylinder is connected or disconnected with gas transmission supervisor.Gas transmission supervisor is connected with nitrogen charging pipeline 8, so that
It is embodied as nitrogen charging pipeline 8 and high pressure nitrogen is provided.Obviously the nitrogen cylinder group for being coupled together by header has bigger nitrogen storage
Capacity is deposited, and is easy to set, the oil extraction nitrogen charging fire extinguishing system for being more suitable for medium-sized or large-scale main transformer is used.For no nitrogen
For the transformer station from far-off regions of gas pipe network, using such scheme can quickly, convenient composition Large Copacity Nitrogen source gases 7, be
Medium-sized or large-scale main transformer cluster provides high pressure nitrogen.
After the completion of oil extraction nitrogen charging operation, there is high pressure between constant temperature valve 803 and one-way throttle valve 801 in nitrogen charging pipeline 8
Nitrogen, high pressure nitrogen longer-term persistence influences whether the use longevity of constant temperature valve 803 and choke valve 801 in part nitrogen charging pipeline 8
Life.
In order to discharge the high pressure nitrogen between constant temperature valve 803 and one-way throttle valve 801 in nitrogen charging pipeline 8, this hair in time
It is bright further to be improved on the basis of any one implementation method in basic embodiment, the first to the 3rd preferred embodiment,
4th preferred embodiment of the invention is that the transformer Nitrogen filling system of each transformer also includes air bleeding valve 802, air bleeding valve
802 are arranged on the nitrogen charging pipeline 8 between the one-way throttle valve 801 of corresponding transformer Nitrogen filling system and transformer.
When using, by the air bleeding valve 802 on the nitrogen charging pipeline 8 that is arranged between one-way throttle valve 801 and transformer and
When discharge high pressure nitrogen, the compression that one-way throttle valve 801 and constant temperature valve 803 bear can be effectively reduced, so as to further carry
The service life of one-way throttle valve high 801 and constant temperature valve 803.
Above is the implementation process of oil-filled transformer oil extraction nitrogen charging fire extinguishing system of the invention.Can from above-mentioned implementation process
To find out, the present invention is realized using the constant temperature Valve controlling transformer oil extraction nitrogen charging operation being built in insulating oil, only will report
The early warning of alert signal is used to be passed through nitrogen in advance in nitrogen charging pipeline, eliminates the danger that fire detector and Buchholz relay wrong report bring
Evil, so that providing the switch board that can be used in a kind of industry carries out the combination of extinguishing operation to multiple oil-filled transformers
Distribution formula oil extraction nitrogen charging fire extinguishing system；The invention also achieves according to disaster hidden-trouble occurrence probability point higher, set targeted specifically
Nitrogen charging branch pipe is put, disaster hidden-trouble is reduced so as to quick, be thoroughly to eliminate disaster hidden-trouble to gain time；The invention also achieves adopting
At least two nitrogen cylinders coupled together with nitrogen cylinder or by header are used as Nitrogen source gases 7, effectively can reduce ground
Locate the Nitrogen source gases construction cost and use cost of the transformer station of remote districts.
Combined imputation type oil extraction nitrogen charging extinguishing method of the invention, is put out a fire using combined imputation type oil extraction nitrogen charging of the invention
System carries out oil extraction nitrogen charging extinguishing operation, including the control of nitrogen storage storage, the pre- nitrogen charging of alarm oil extraction, temperature control to oil-filled transformer
Three steps of nitrogen charging, detailed process is as follows：
Step 1, the control of nitrogen gas-storing capacity：With oil extraction nitrogen charging flame failure protection in need oil-filled transformer in, oil storage
The nitrogen amount that maximum oil-filled transformer of the capacity of cabinet 12 carries out a nitrogen charging fire extinguishing calculates a reference value as nitrogen finimeter,
Using the nitrogen finimeter calculation a reference value multiply 2 as Nitrogen source gases 7 nitrogen gross reserves, filled to Nitrogen source gases 7 by nitrogen charging device
Enter the nitrogen of the nitrogen gross reserves；Nitrogen finimeter calculate a reference value computing formula be：
V=K*S*Q*T
Wherein, V is that nitrogen finimeter calculates a reference value, and K is the peace of that maximum oil-filled transformer of the capacity of oil conservater 12
Overall coefficient, the span of K is 1.05~1.30；S is that the level of that maximum oil-filled transformer of the capacity of oil conservater 12 is thrown
Shadow area；Q is strong to the nitrogen charging that maximum oil-filled transformer of the capacity of oil conservater 12 carries out nitrogen charging fire extinguishing for nitrogen charging pipeline 8
Degree, namely the nitrogen amount passed through within the unit interval for unit projected area；T is nitrogen charging pipeline 8 maximum to the capacity of oil conservater 12
That oil-filled transformer carry out the duration of nitrogen charging fire extinguishing.
During implementation, if using nitrogen gas cylinders group as Nitrogen source gases 7, the nitrogen gas cylinder for directly adding respective numbers is made
It is Nitrogen source gases 7.By being arranged on high-pressure manometer and switch board 11 on the export pipeline of Nitrogen source gases 7, implement to understand nitrogen gas
The gas-storing capacity in source 7, when Nitrogen source gases 7 are not enough, can be by increasing new nitrogen gas cylinder, it is also possible to once change all of nitrogen
Gas bottle, it is ensured that Nitrogen source gases 7 have the gas-storing capacity needed for tackling fire.
This step is controlled by nitrogen gas-storing capacity, and not only improve reduces nitrogen use cost in remote transformer station,
After being also beneficial to carry out an oil extraction nitrogen charging extinguishing operation, Nitrogen source gases 7 still store main transformer fire of reply enough
Nitrogen so that the oil-filled transformer of transformer station all the time in the state of the protection of oil extraction nitrogen charging fire extinguishing system run, pole
The big operations risks for reducing transformer station.
Step 2, pre- oil extraction nitrogen charging of alarming：On switch board 11 address code, control are distributed to each oil-filled transformer
After cabinet processed 11 receives the alarm signal of Buchholz relay 3 or fire detector 10, judge which oil immersion is alarm signal come from
Formula transformer, and the oil extraction time carried out needed for the oil-filled transformer and the required nitrogen amount being passed through are recalled, switch board 11 should
Row's oil control valve 6 of the oil draining system of oil-filled transformer is opened, and discharges the insulating oil in the transformer oil storage 12, meanwhile,
Flow control valve 2 between conservator 1 and oil conservater 12 is automatically switched off；When insulating oil drain time reaches scheduled duration, switch board 11 refers to
Make the nitrogen charging control valve 9 of the transformer Nitrogen filling system of the transformer open, pressure and flow are set to being passed through in nitrogen charging pipeline 8
Nitrogen.
During implementation, a control logic one Buchholz relay of oil-filled transformer 3, fire of correspondence of switch board 11 is visited
Device 10, row's oil control valve 6 and nitrogen charging control valve 9 are surveyed, switch board 11 distributes an address code, passes through to each oil-filled transformer
The address code, switch board 11 can just judge alarm signal from which oil-filled transformer, it is necessary to which oil immersed type transformation controlled
Row's oil control valve 6 of device is opened, the oil extraction time be how long, it is necessary to control which oil-filled transformer nitrogen charging control valve 9 open,
Nitrogen charging amount is how many.
This step distributes an address code by switch board 11 to each oil-filled transformer, realizes to alarm signal
Positioning, for alarm signal be precisely controlled row the oil extraction of oil control valve 6, control nitrogen charging control nitrogen charging of the valve 9 to corresponding transformer
Pipeline 8 is passed through nitrogen in advance, is follow-up to prepare to being passed through nitrogen in oil conservater 12.
Step 3, temperature control nitrogen charging：When the insulation oil temperature in oil storage tank of oil immersed transformer 12 reaches predetermined temperature, constant temperature
Valve 803 is opened, and by nitrogen charging pipeline 8 to nitrogen is filled with Oil Tank 12, carries out nitrogen charging fire extinguishing.
During implementation, the valve body of the constant temperature valve 803 being immersed in the insulating oil of oil conservater 12 and the temperature of insulating oil keep one
Cause.When insulation oil temperature rises to the opening temperature of constant temperature valve 803, constant temperature valve 803 is opened, and nitrogen enters oil conservater 12
It is interior, with intensive bubble form from insulating oil bottom to insulating oil top spring up, the nitrogen for springing up cause in oil conservater 12 it is upper,
The agitation mixing of lower oil reservoir, and air contact oil surface temperature rapid decrease, when nitrogen rises to insulating oil top, on insulating oil top
Blanket of nitrogen is formed, it is effectively fire-retardant by the oxygen gases separated in insulating oil and air, disaster hidden-trouble is eliminated in A-stage.
This step senses the temperature of insulating oil by being built in the constant temperature valve 803 in the insulating oil of oil conservater 12, passes through
The unlatching of constant temperature valve 803 controls the nitrogen charging pipeline 8 to nitrogen is filled with oil conservater 12, carries out nitrogen charging fire extinguishing.Relative to existing
Technology is based on alarm signal and controls nitrogen charging pipeline 8 to nitrogen is filled with oil conservater 12, carries out nitrogen charging fire extinguishing, the method pin of this step
Stronger to property, accuracy rate is higher, and practicality is stronger.
After the completion of oil extraction nitrogen charging operation, there is high pressure between constant temperature valve 803 and one-way throttle valve 801 in nitrogen charging pipeline 8
Nitrogen, high pressure nitrogen longer-term persistence influences whether the use longevity of constant temperature valve 803 and choke valve 801 in part nitrogen charging pipeline 8
Life.
In order to discharge the nitrogen remained in nitrogen charging pipeline in time, residual nitrogen is reduced to the bad of transformer Nitrogen filling system
Influence, also includes step 4, specially after step 3：
Nitrogen is remained in exclusion nitrogen charging pipeline：Each transformer transformer Nitrogen filling system one-way throttle valve 801 with
Air bleeding valve 802 is set on the nitrogen charging pipeline 8 between transformer, when constant temperature valve 803 is closed, after the completion of oil extraction nitrogen charging operation, is beaten
Begin to rehearse air valve 802, and the nitrogen discharge that will be remained in nitrogen charging pipeline falls.
During implementation, because the diameter of nitrogen charging pipeline 8 is generally not over DN25, and length is usually no more than 15 meters, residual
Nitrogen in nitrogen charging pipeline, relative to the gas-storing capacity very little of Nitrogen source gases 7, it is directly emitted, the gas storage of Nitrogen source gases 7
Amount loss can be ignored, while nitrogen is used as the main component in air, be directly discharged to not result in environment in air
Pollution.
Above is the implementation process of combined imputation type oil extraction nitrogen charging extinguishing method of the invention.Can be with from above-mentioned implementation process
Find out, the present invention realizes the control nitrogen charging extinguishing operation based on the oil temperature that insulated in oil conservater 12, it is to avoid prior art report
The serious harm that alert signal brings.See on the whole, combined imputation type oil extraction nitrogen charging extinguishing method of the present invention, specific aim is stronger,
Accuracy rate is higher, and stability is higher, in time can eliminate in A-stage the disaster hidden-trouble in oil conservater, changes existing combination
Situation of the distribution formula oil extraction nitrogen charging extinguishing method without industrial applicability.
Claims (6)
1. combined imputation type oil extraction nitrogen charging fire extinguishing system, including Nitrogen source gases (7), switch board (11), is arranged on each transformer
The fire detector (10) at top, the transformer oil storage control system of the band Buchholz relay (3) being arranged on each transformer,
Transformer oil draining system with row's oil control valve (6), the transformer Nitrogen filling system with nitrogen charging control valve (9), each transformer
The transformer Nitrogen filling system is connected with Nitrogen source gases (7)；The fire detector (10) of each transformer, gas after
Electrical equipment (3), row's oil control valve (6), nitrogen charging control valve (9) to be electrically connected with switch board (11)；Characterized in that, each transformer
Nitrogen filling system also include one-way throttle valve (801), nitrogen charging pipeline (8), constant temperature valve (803), the gas of the nitrogen charging pipeline (8)
Source connection is connected with Nitrogen source gases (7), and the oil conservater connection end of the nitrogen charging pipeline (8) passes through oil conservater (12) following side
Transformer wall body extend to oil conservater (12), the constant temperature valve (803) is arranged on the nitrogen charging pipeline in oil conservater (12)
(8) on, the one-way throttle valve (801) is arranged on nitrogen charging control valve (9) on the nitrogen charging pipeline (8) and transformer between.
2. combined imputation type oil extraction nitrogen charging fire extinguishing system according to claim 1, it is characterised in that the change of each transformer
The nitrogen charging pipeline (8) of depressor Nitrogen filling system, at least two nitrogen charging branch pipes, is filled in correspondence transformer external shunt described in every
The transformer wall body that nitrogen branch pipe both passes through oil conservater (12) following side extends to oil conservater (12), every in oil conservater (12)
Constant temperature valve (803) is provided with nitrogen charging branch pipe described in root.
3. combined imputation type oil extraction nitrogen charging fire extinguishing system according to claim 1 and 2, it is characterised in that the nitrogen gas
Source (7) includes nitrogen cylinder group and header, and the nitrogen cylinder group includes at least two nitrogen cylinders, and the header includes gas transmission
Supervisor and at least two confluxing branch pipe of being arranged on parallel on gas transmission supervisor, each described branch pipe that confluxes is responsible for gas transmission and is connected
Logical, the gas outlet of each nitrogen cylinder is corresponding with header branch pipe that confluxes to be connected, the gas transmission supervisor and nitrogen charging
Pipeline (8) is connected.
4. combined imputation type oil extraction nitrogen charging fire extinguishing system according to claim 1 and 2, it is characterised in that each transformer
Transformer Nitrogen filling system also include air bleeding valve (802), the air bleeding valve (802) is arranged on the list of corresponding transformer Nitrogen filling system
On nitrogen charging pipeline (8) to choke valve (801) and transformer between.
5. combined imputation type oil extraction nitrogen charging extinguishing method, it is characterised in that using the combined imputation type oil extraction described in claim 1
Nitrogen charging fire extinguishing system carries out oil extraction nitrogen charging extinguishing operation to oil-filled transformer, comprises the following steps：
Step 1, the control of nitrogen gas-storing capacity：With oil extraction nitrogen charging flame failure protection in need oil-filled transformer in, oil conservater hold
Measuring that maximum oil-filled transformer carries out a nitrogen amount for nitrogen charging fire extinguishing as nitrogen finimeter calculation a reference value, by the nitrogen
Gas reserves calculate a reference value multiply 2 as Nitrogen source gases nitrogen gross reserves, the nitrogen is filled with to Nitrogen source gases by nitrogen charging device
The nitrogen of gross reserves；Nitrogen finimeter calculate a reference value computing formula be：
V=K*S*Q*T
Wherein, V is that nitrogen finimeter calculates a reference value, and K is the safety coefficient of that maximum oil-filled transformer of oil conservater capacity,
The span of K is 1.05~1.30；S is the horizontal projected area of that maximum oil-filled transformer of oil conservater capacity；Q is
Nitrogen charging pipeline carries out the nitrogen charging intensity of nitrogen charging fire extinguishing to that maximum oil-filled transformer of oil conservater capacity, namely for unit is thrown
The nitrogen amount that shadow area passes through within the unit interval；T is nitrogen charging pipeline to that maximum oil-filled transformer of oil conservater capacity
Carry out the duration of nitrogen charging fire extinguishing；
Step 2, pre- oil extraction nitrogen charging of alarming：An address code is distributed to each oil-filled transformer on switch board, switch board connects
After receiving the alarm signal of Buchholz relay or fire detector, alarm signal is judged from which oil-filled transformer, and
Recall the oil extraction time and the required nitrogen amount being passed through carried out needed for the oil-filled transformer, the switch board oil-filled transformer
Row's oil control valve of oil draining system is opened, and discharges the insulating oil in the transformer oil storage, meanwhile, between conservator and oil conservater
Flow control valve is automatically switched off；When insulating oil drain time reaches scheduled duration, switch board instructs the transformer nitrogen charging system of the transformer
The nitrogen charging control valve of system is opened, to the nitrogen that setting pressure and flow are passed through in nitrogen charging pipeline；
Step 3, the fire extinguishing of temperature control nitrogen charging：When the insulation oil temperature in oil storage tank of oil immersed transformer reaches predetermined temperature, constant-temperature valve
Door is opened, and by being filled with nitrogen in nitrogen blanketing valve road direction Oil Tank, carries out nitrogen charging fire extinguishing.
6. combined imputation type oil extraction nitrogen charging extinguishing method according to claim 5, it is characterised in that also wrapped after step 3
Include the residual nitrogen excluded in nitrogen charging pipeline：
Exhaust is set on the nitrogen charging pipeline between the one-way throttle valve and transformer of the transformer Nitrogen filling system of each transformer
Valve, after the completion of constant temperature valve closing, oil extraction nitrogen charging operation, opens air bleeding valve, will remain in the nitrogen discharge in nitrogen charging pipeline
Fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118997.5A CN104721992B (en) | 2015-03-18 | 2015-03-18 | Combined imputation type oil extraction nitrogen charging fire extinguishing system and extinguishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118997.5A CN104721992B (en) | 2015-03-18 | 2015-03-18 | Combined imputation type oil extraction nitrogen charging fire extinguishing system and extinguishing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104721992A CN104721992A (en) | 2015-06-24 |
| CN104721992B true CN104721992B (en) | 2017-06-09 |
Family
ID=53446776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510118997.5A Active CN104721992B (en) | 2015-03-18 | 2015-03-18 | Combined imputation type oil extraction nitrogen charging fire extinguishing system and extinguishing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104721992B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390335A (en) * | 2016-08-31 | 2017-02-15 | 常州市达克富尔环保科技有限公司 | Oil-draining and nitrogen-injecting fire extinguishing device comprising double oil draining systems |
| CN108281894B (en) * | 2018-03-22 | 2023-04-14 | 中国能源建设集团云南省电力设计院有限公司 | Transformer reignition fire internal and external fire alarm and linkage control system |
| CN112652459A (en) * | 2019-10-10 | 2021-04-13 | 特变电工沈阳变压器集团有限公司 | Converter transformer main body and oil conservator accident oil discharge system |
| CN111403153A (en) * | 2020-03-17 | 2020-07-10 | 山东电力设备有限公司 | Transformer oil conservator rapid cut-off and oil discharge device, control system and method |
| CN111710503B (en) * | 2020-07-07 | 2024-05-28 | 国网安徽省电力有限公司电力科学研究院 | Extra-high voltage converter transformer power oil discharge and nitrogen injection device, control system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201625362U (en) * | 2010-03-09 | 2010-11-10 | 韩会涛 | Oil immersed transformer oil discharge and nitrogen charge fire extinguishing device |
| CN201643489U (en) * | 2010-03-23 | 2010-11-24 | 河南省电力勘测设计院 | Combined distribution type oil drainage and nitrogen charge fire extinguishing system |
| CN103943312A (en) * | 2014-04-10 | 2014-07-23 | 昆山达功电子有限公司 | Fireproof transformer shell |
| CN204502200U (en) * | 2015-03-18 | 2015-07-29 | 四川电力设计咨询有限责任公司 | Nitrogen fire extinguishing system is filled in combined imputation type oil extraction for oil-filled transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6581694B2 (en) * | 2000-12-29 | 2003-06-24 | Waukesha Electrical Systems, Inc. | Method and system for controlling the supply of nitrogen to electrical power handling equipment |
-
2015
- 2015-03-18 CN CN201510118997.5A patent/CN104721992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201625362U (en) * | 2010-03-09 | 2010-11-10 | 韩会涛 | Oil immersed transformer oil discharge and nitrogen charge fire extinguishing device |
| CN201643489U (en) * | 2010-03-23 | 2010-11-24 | 河南省电力勘测设计院 | Combined distribution type oil drainage and nitrogen charge fire extinguishing system |
| CN103943312A (en) * | 2014-04-10 | 2014-07-23 | 昆山达功电子有限公司 | Fireproof transformer shell |
| CN204502200U (en) * | 2015-03-18 | 2015-07-29 | 四川电力设计咨询有限责任公司 | Nitrogen fire extinguishing system is filled in combined imputation type oil extraction for oil-filled transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104721992A (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104721992B (en) | Combined imputation type oil extraction nitrogen charging fire extinguishing system and extinguishing method | |
| CN106110537A (en) | Cooling fire extinguishing device and fire extinguishing method for thermal runaway of stored lithium ion battery | |
| CN201783112U (en) | Oil-immersed transformer pressure-protection nitrogen-charging fire-extinguishing device | |
| CN104667459A (en) | Sub-regional protection type substation fire fighting monitoring and early warning and fire fighting system | |
| CN110270032A (en) | A kind of lithium ion battery energy storage system fire prevention and control device and implementation method | |
| CN201658766U (en) | Oil-discharging and nitrogen-injecting fire extinguishing apparatus of transformer | |
| CN104436477A (en) | Comprehensive fire fighting system and comprehensive fire fighting method of large-size oil-containing equipment of transformer substation | |
| CN207024428U (en) | Ore heat furnace transformer unattended surveillance carries fire-extinguishing function concurrently and automatically protects system | |
| CN206566390U (en) | A kind of novel transformer explosive fire accident water spray notes nitrogen fire extinguishing system | |
| CN106362330A (en) | Novel water atomizing and nitrogen injection fire extinguishing system for explosive fire accidents of transformers | |
| CN108281894A (en) | Fire alarm and coordinated control system inside and outside a kind of transformer sleeper fire | |
| CN2532566Y (en) | Explosion-proof fire-extinguishing device for oil-immersed transformer | |
| CN216653185U (en) | Fire extinguishing system and energy storage system | |
| CN108607175B (en) | Combined distribution anti-action anti-misoperation anti-explosion dampproof oil-discharging nitrogen-injecting fire extinguishing device | |
| CN110882501A (en) | Transformer comprehensive fire prevention and control system | |
| CN212491235U (en) | Comprehensive fire control system of extra-high voltage converter station | |
| CN204502200U (en) | Nitrogen fire extinguishing system is filled in combined imputation type oil extraction for oil-filled transformer | |
| CN102423518A (en) | Fire protection method of electrical device and protective device thereof | |
| CN211263673U (en) | Fire-proof and explosion-proof test system of extra-high voltage converter transformer | |
| CN206560607U (en) | A kind of novel transformer explosive fire accident foam notes nitrogen fire extinguishing system | |
| CN111701166B (en) | Ultra-high voltage converter station comprehensive fire control method and system based on time sequence control | |
| CN204502199U (en) | Nitrogen fire extinguishing system is filled in oil-filled transformer oil extraction | |
| CN112327105A (en) | Fire and explosion prevention test system and fire extinguishing method for extra-high voltage converter transformer | |
| CN201643489U (en) | Combined distribution type oil drainage and nitrogen charge fire extinguishing system | |
| CN211434846U (en) | Transformer comprehensive fire prevention and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |