CN113470503A - Transformer fire simulation device and ignition combustion method thereof - Google Patents
Transformer fire simulation device and ignition combustion method thereof Download PDFInfo
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- CN113470503A CN113470503A CN202110898402.8A CN202110898402A CN113470503A CN 113470503 A CN113470503 A CN 113470503A CN 202110898402 A CN202110898402 A CN 202110898402A CN 113470503 A CN113470503 A CN 113470503A
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Abstract
A fire simulation device of a transformer and an ignition combustion method thereof are provided, the device comprises: the device comprises a transformer body, a wire outlet sleeve, an oil conservator, a remote manual control valve, a splash pipe, a top combustion oil pool, a simulation tap switch combustion oil pool, a nitrogen exhaust pipe valve, a pressure release device, a high-voltage sleeve simulation combustion oil pool, a medium-voltage sleeve simulation combustion oil pool, a transformer simulation radiator, a current terminal, a voltage terminal, a duckbill nozzle, an operation manhole, a first temperature probe, a second temperature probe, a third temperature probe and a fourth temperature probe. The internal structure and the external structure provided by the fire simulation device can effectively promote the simulation of the fire form of the real large-scale transformer, which is consistent with the fire form, and the invention also standardizes the ignition combustion mode and provides a basic test platform for testing and evaluating different fire-fighting systems.
Description
Technical Field
The invention belongs to the field of power transformer fire-fighting research, and particularly relates to a transformer fire simulation device and an ignition combustion method thereof.
Background
Except some small-sized transformers of the power system adopt solid insulation, other high-capacity and high-voltage power transformers all adopt an oil paper insulation mode. The transformer oil accounts for the largest proportion in the total mass of the transformer combustible materials, and plays roles in heat dissipation and insulation. The transformer oil has high flash point (generally higher than 135 ℃), high density (relative density up to 0.895) and specific heat capacity of about 0.5 (Cal/g.), and is not inflammable at normal temperature, but the transformer oil in working state has a temperature of 75 ℃ generally, and the highest allowable working temperature is even up to 95 ℃, and at the moment, the transformer oil is easier to ignite than in normal temperature. Furthermore, the insulation material used for the transformer comprises a large amount of paper, wood, cloth material. The insulation belongs to class A insulation mostly, the maximum operation temperature of the insulation is 105 ℃, and the performance and the quality of the insulation directly influence the operation reliability and the service life of the transformer. Research shows that the internal fault is the main cause of transformer fire, and the initial equipmentThe electric arc or high temperature caused by internal fault gasifies the high temperature of the insulating material (mainly insulating oil) and generates inflammable combustible substances, strong energy generates violent internal reaction, the violent reaction in a short period causes oil injection of a pressure release valve of the transformer, and even causes cracking of a transformer box body, and decomposed substances and high-temperature insulating oil splash to be combined with air to form fire. In addition, fire produces CO, HCL, HCN, CL2, CO2And toxic and harmful gases further expand fire hazard.
For the main part of the transformer inducing fire, related experts at home and abroad also make a lot of research, for example, Martin and other scholars make statistics on fire fault accidents of the transformer in an Australian power system, and find that the faults of the sleeve and the tap changer are the main reasons for causing the fire of the transformer, wherein the fault reason of the sleeve accounts for 41 percent, and the fault reason of the tap changer accounts for 15 percent. According to the transformer fire situation provided by the institute of electrical and electronics engineers IEEE, quebec power company, canada, for 25 years, the causes of the transformer fire are also similar.
The transformer can be put out in time when a fire disaster happens, which is an effective means for effectively reducing the loss of equipment and personnel. The traditional transformer fire-fighting and fire-extinguishing technology mainly comprises four types, namely a fixed water spray (mist) fire-extinguishing system, a water mist fire-extinguishing system, an oil discharge and nitrogen injection fire-extinguishing system and a foam fire-extinguishing system. Around the fire extinguishing effect and the application range thereof, although a large number of simulation-based and true-type simulation tests are carried out by related scholars, most of simulation equipment adopts small devices, and the simulation equipment has great difference with a transformer in engineering practice in terms of quality or volume, so that the basic form of the simulation equipment in the actual fire can not be simulated. However, if a real power transformer is used, the problems of high price, heavy weight, great construction difficulty and irreversible loss to the transformer after the test result, which causes huge test cost each time and is not beneficial to the repeated and continuous development of the combustion test of the transformer, exist. In addition, the selection of the simulated ignition point by different researchers is often set according to own experience, and the research contents of different research objects are often not contrasted.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a transformer fire simulation device and an ignition and combustion method thereof.
The invention adopts the following technical scheme:
a transformer fire simulation apparatus comprising: the device comprises a transformer body 7, an outlet sleeve 1, an oil conservator 2, a remote manual control valve 3, a nitrogen exhaust pipe valve 8, a pressure release device 9, a transformer simulation radiator 12 and an operation manhole 16; the fire simulation device for the transformer further comprises:
the device comprises a current terminal 13, a voltage terminal 14, a duckbill nozzle 15, an electric spray pipe 4, a top combustion oil pool 5, an analog tap changer combustion oil pool 6, a high-voltage sleeve analog combustion oil pool 10, a medium-voltage sleeve analog combustion oil pool 11, a first temperature probe 17, a second temperature probe 18, a third temperature probe 19 and a fourth temperature probe 20;
the outgoing line sleeve 1, the oil conservator 2, the top combustion oil pool 5, the pressure release device 9 and the operation manhole 16 are arranged at the top of the transformer body 7;
one side of the left side and the right side of the transformer body 7 is connected with an external nitrogen injection device, and the other side of the transformer body is connected with a transformer simulation radiator 12;
the transformer body 7 contains the simulation oil pool.
The outlet bushing 1 includes: the high-voltage side outgoing line sleeve, the medium-voltage side outgoing line sleeve and the low-voltage side outgoing line sleeve are respectively provided with a lifting seat and a test sleeve;
the upper end of the high-voltage side outgoing line sleeve lifting seat is provided with a high-voltage sleeve fire simulation combustion oil pool 10, and the upper end of the medium-voltage side outgoing line sleeve lifting seat is provided with a medium-voltage sleeve fire simulation combustion oil pool 11.
The width of the high-voltage bushing fire simulation combustion oil pool 10 and the medium-voltage bushing fire simulation combustion oil pool 11 is the length from the outer edge of the corresponding outgoing line bushing to the outer edge of the lifting seat.
The splash pipe 4 extends from the lower part of the conservator 2, the upper end of the splash pipe is provided with a remote manual control valve 3, and the lower end of the splash pipe is provided with a duckbill nozzle 15.
The simulated combustion oil pool (6) of the simulated tap changer is arranged at the tap changer of the transformer body (7), and the length, width and height values of the simulated combustion oil pool are respectively [0.6m,0.8m ], [0.6m,0.8m and 0.15 m.
The diameter of the pressure release device 9 is in the range of [20cm,30cm ].
The inside simulation oil bath structure that adopts of transformer body 7, the long limit outside surface of transformer body is provided with current terminal 13, with inside simulation winding intercommunication, realizes the control to the electric current size through external current conversion device.
The surface of the outer side of the long edge of the transformer body 7 is provided with a voltage terminal 14 which is communicated with a discharge gap in the simulation oil pool inside the transformer body 7.
The first temperature probe 17, the second temperature probe 18, the third temperature probe 19 and the fourth temperature probe 20 are respectively arranged on the front, the rear, the left and the right sides of the outer side of the transformer body 7.
The external nitrogen injection device is connected with the transformer body 7 through a pipeline; wherein, the nitrogen injection device comprises a control system and a nitrogen injection system;
the control system adopts a relay for control, receives a signal DC220V, outputs a non-electric quantity contact of which a communication signal contact can bear the voltage of DC220V, and communicates with an upper computer through the non-electric quantity contact; when the transformer body 7 is in fire or explosion danger, the nitrogen exhaust pipe valve 8 of the nitrogen injection system is opened, nitrogen is filled into the transformer from the lower part of the transformer through a nitrogen injection pipeline of the nitrogen injection system, the oil temperature in the transformer is cooled, and air is isolated.
The invention also discloses an ignition combustion method based on the transformer fire simulation device, which comprises the following steps:
the ignition combustion method includes an internal combustion and an external combustion method;
the internal combustion method comprises the following steps: the transformer body 7 is internally electrically ignited, a voltage terminal 14 is externally connected with a pressurizing device, and an internal combustion mode is realized by igniting combustible materials through breakdown electric arc, wherein the combustible materials comprise gasoline and gasoline soaking materials;
the external combustion method comprises the following steps: standard transformer insulating oil is injected into any combustion oil pool, and a 40L-70L gasoline bag can be hung at a height of 200mm-300mm from the surface of a high-voltage bushing simulation combustion oil pool 10 and a medium-voltage bushing simulation combustion oil pool 11, and a 100L-200L gasoline bag can be hung at a height of 200mm-300mm from the surface of a simulation tap changer combustion oil pool 6 and a top combustion oil pool 5;
during ignition, a mode of combining remote electronic ignition and manual ignition rod ignition is adopted;
the remote electronic ignition device adopts 220V alternating current, and leads on the gasoline oil bag are ignited by an ignition rod through a discharge tube and a high-temperature-resistant cable and by impact current; the manual ignition rod adopts carbon fiber's ignition rod, and the long-range manual control valve 3 through opening conservator and splash pipe 4 is igniteed to the gas jar ventilation production spark form, and the oil in the conservator 2 fills transformer upper portion burning oil bath through duckbilled shower nozzle 15, forms the trickling fire on transformer upper portion.
Compared with the prior art, the invention has the beneficial effects that:
1. the novel transformer fire simulation device provided by the invention can effectively promote the simulation of fire forms with the same fire form of a real large-scale transformer by the internal structure and the external structure;
2. the structure of the transformer fire simulation device can effectively prevent transformer fire caused by internal faults of the internal fire simulation device, and avoid the accidents that the insulating material is gasified and flammable combustible materials are generated due to electric arcs or high temperature caused by internal faults of initial equipment;
3. the invention standardizes the ignition combustion mode, can simulate the basic form of a large-scale power transformer during fire, and provides a basic test platform for testing and evaluating different fire-fighting systems.
Drawings
FIG. 1 is a front view of a transformer fire simulator in accordance with an embodiment of the present invention;
FIG. 2 is a top view of a transformer fire simulator in accordance with an embodiment of the present invention;
the reference numbers in the above figures are as follows:
1-a wire outlet sleeve;
2- -conservator;
3- -remote manual valve;
4- -splash tube;
5- -top combustion oil sump;
6-simulating a tap changer combustion oil pool;
7-transformer body;
8- -nitrogen vent pipe valve;
9- -pressure relief device;
10- -high pressure bushing simulation combustion oil pool;
11- -medium pressure sleeve simulating combustion oil pool;
12-transformer simulation radiator;
13- -current terminal;
14- -voltage terminal;
15- -duckbill nozzle;
16- -operating manhole;
17- -first temperature probe;
18- -second temperature probe;
19- -third temperature probe;
20- -fourth temperature probe.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.
Fig. 1 and 2 show a front view and a top view of a fire simulator of a transformer according to the present invention, which specifically includes: the device comprises a transformer body 7, an outlet sleeve 1, an oil conservator 2, a remote manual control valve 3, a splash pipe 4, a top combustion oil pool 5, a simulated tap changer combustion oil pool 6, a nitrogen exhaust pipe valve 8, a pressure release device 9, a high-pressure sleeve simulated combustion oil pool 10, a medium-pressure sleeve simulated combustion oil pool 11, a transformer simulated radiator 12, a current terminal 13, a voltage terminal 14, a duckbill nozzle 15, an operation manhole 16, a first temperature probe 17, a second temperature probe 18, a third temperature probe 19 and a fourth temperature probe 20;
the outgoing line sleeve 1, the oil conservator 2, the top combustion oil pool 5, the pressure release device 9 and the operation manhole 16 are arranged at the top of the transformer body 7;
one side of the left side and the right side of the transformer body 7 is connected with an external nitrogen injection device, and the other side of the transformer body is connected with a transformer simulation radiator 12;
the transformer body 7 is internally provided with a simulation oil pool;
specifically, the outlet bushings 1 are respectively arranged along two groups of long edges at the top of the transformer body 7, and the middle of the outlet bushings is separated by the conservator 2. The outgoing line sleeve 1 comprises a high-voltage side outgoing line sleeve, a medium-voltage side outgoing line sleeve and a low-voltage side outgoing line sleeve, and a lifting seat and a test sleeve are respectively arranged on the three outgoing line sleeves. Preferably, the number of the high-voltage side outgoing line sleeves is 4, the number of the medium-voltage side outgoing line sleeves is 4, and the number of the low-voltage side outgoing line sleeves is 3. The high voltage range is [110kV,220kV ], the medium voltage range is [35kV,110kV ], the low voltage range is [10kV,35kV ], in the present invention, 220kV is used for high voltage, 35kV is used for medium voltage, and 10kV is used for low voltage.
Preferably, the fire simulation device of the transformer simulates the appearance size of a 220kV three-phase three-winding YNyn0d11 type power transformer, the length range of the transformer main body 7 is [9m,11m ], the width range of the transformer main body is [3m,4m ], the height range of the transformer main body is [3m,4m ], and an oil conservator is arranged at the top of the transformer main body 7.
A high-voltage bushing fire simulation combustion oil pool 10 is arranged at the upper end of the high-voltage side outgoing bushing lifting seat, a medium-voltage bushing fire simulation combustion oil pool 11 is arranged at the upper end of the medium-voltage side outgoing bushing lifting seat, and the widths of the two combustion pools are respectively the lengths from the outer edge of the outgoing bushing to the outer edge of the lifting seat and are used for simulating a bushing fire caused by a bushing fault; the splash pipe 4 extends out of the lower part of the oil conservator 2, the upper end of the splash pipe is provided with a remote manual control valve 3, and the lower end of the splash pipe is provided with a duckbill nozzle 15;
the simulated combustion oil pool 6 of the simulated tap changer is arranged at the tap changer of the transformer body 7, the length, width and height value ranges are respectively [0.6m,0.8m ], [0.6m,0.8m and 0.15m, and the simulated combustion oil pool is used for simulating a fire disaster at the tap changer caused by the fault of the tap changer;
a top combustion oil pool 5 is arranged at the upper part of the transformer body 7, and the length, width and height value ranges of the top combustion oil pool 5 are respectively [0.5m,0.7m ], [0.4m,0.6m ] and 0.15m, so as to simulate the fire splashing caused by oil leakage of a transformer conservator connecting pipe and the surrounding fire of a test on the transformer;
the top of the transformer body 7 is provided with a pressure release device 9, the diameter of the pressure release device is in a value range of [20cm,30cm ], the pressure release device is used for realizing direct conduction between the inside and the outside of the transformer, and the danger that the simulation device is exploded due to violent combustion in the inside in an internal combustion test is avoided. The transformer body 7 is internally provided with a simulation oil pool structure for simulating a transformer oil-immersed coil system, and meanwhile, the surface of the transformer body 7 is provided with a current terminal 13 which is communicated with an internal simulation winding and realizes the control of the current size through an external converter device. The current loop can be used for preheating the insulating oil in the simulation oil pool in the transformer, simulating the equipment state of the transformer during actual operation and analyzing the influence of high temperature on the degradation degree of the main insulating material of the transformer;
meanwhile, the surface of the transformer body 7 is provided with a voltage terminal 14 which is communicated with a discharge gap in a simulation oil pool inside the transformer body 7, and different voltages are applied to the outside to simulate the condition of fire caused by breakdown of an insulating medium caused by the voltages.
The top of the transformer body 7 is provided with an operation manhole 16, and the length of the operation manhole is within a value range
[0.5m,0.7m ] and a width of 0.5m, and is used for prefabricating and replacing test winding units and current and voltage to spare parts by testing personnel according to test requirements, and realizing internal operations such as oiling of an internal simulation oil pool, prefabricating combustion media and the like.
The outer sides of the front, the rear, the left and the right sides of the transformer body 7 are respectively provided with a first temperature probe 17, a second temperature probe 18, a third temperature probe 19 and a fourth temperature probe 20, which are used for monitoring the temperature condition of the insulating oil in the simulated oil pool inside the transformer body 7. In order to simulate the fire extinguishing performance of the oil discharge and nitrogen injection device, the transformer fire simulation device is provided with a set of nitrogen injection device which is connected with the transformer body 7 through a pipeline. Wherein, the nitrogen injection device mainly comprises a control system and a nitrogen injection system. The control system adopts a relay for control, receives a signal of DC220V, outputs a non-electric quantity contact of which a communication signal contact can bear the voltage of DC220V, and communicates with an upper computer through the non-electric quantity contact. When the transformer is in fire or explosion danger, the nitrogen exhaust pipe valve 8 of the nitrogen injection system is opened, nitrogen is injected into the transformer from the lower part of the transformer through a nitrogen injection pipeline of the nitrogen injection system, the oil temperature in the transformer is cooled, and air is isolated.
One side of the left side and the right side of the transformer body 7 is connected with an external nitrogen injection device, and the other side of the left side and the right side of the transformer body is connected with a transformer simulation radiator 12;
the invention also discloses an ignition combustion method of the transformer fire simulation device, which comprises an internal combustion method and an external combustion method;
the internal combustion method comprises the following steps: the transformer body 7 is internally electrically ignited, and is externally connected with a pressurizing device through a voltage terminal 14, and an internal combustion mode is realized by igniting combustible through breakdown electric arc. Combustibles include gasoline and gasoline soaks.
The external combustion method comprises the following steps: during the test, standard transformer insulating oil is injected into any combustion oil pool, 40L-70L gasoline bags can be hung at a height of 200mm-300mm from the surface of a high-voltage sleeve simulation combustion oil pool 10 and a medium-voltage sleeve simulation combustion oil pool 11, and 100L-200L gasoline bags can be hung at a height of 200mm-300mm from the surface of a simulation tap changer combustion oil pool 6 and a top combustion oil pool 5. During ignition, a mode of combining remote electronic ignition and manual ignition rod ignition is adopted. The remote electronic ignition device adopts 220V alternating current, lights a lead wire on a gasoline pocket through a discharge tube, a high-temperature-resistant cable, an ignition rod and impact current, and achieves the effect of combustion-supporting insulating oil by igniting gasoline. The ignition of manual ignition stick adopts carbon fiber's ignition stick, and the gas jar is ventilated and is produced the spark form and ignite, and operating personnel need the safety protection equipment and wear portable combustible gas detector and operate. By the aid of the method, sleeve fire, tapping sleeve fire and transformer top fire can be initially realized. And the trickling fire is formed by filling the oil in the oil conservator 2 into the combustion oil pool at the upper part of the transformer through the duckbill nozzle 15 by opening the remote manual control valve 3 of the oil conservator and the splash pipe 4 under the combustion state of the oil pool at the top of the transformer.
The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.
Claims (11)
1. A transformer fire simulation apparatus, the transformer fire simulation apparatus comprising: the device comprises a transformer body (7), a wire outlet sleeve (1), an oil conservator (2), a remote manual control valve (3), a nitrogen exhaust pipe valve (8), a pressure release device (9), a transformer simulation radiator (12) and an operation manhole (16); it is characterized in that the fire simulation device of the transformer further comprises:
the device comprises a current terminal (13), a voltage terminal (14), a duckbill nozzle (15), an electric spray pipe (4), a top combustion oil pool (5), an analog tap switch combustion oil pool (6), a high-voltage sleeve analog combustion oil pool (10), a medium-voltage sleeve analog combustion oil pool (11), a first temperature probe (17), a second temperature probe (18), a third temperature probe (19) and a fourth temperature probe (20);
the outgoing line sleeve (1), the oil conservator (2), the top combustion oil pool (5), the pressure release device (9) and the operation manhole (16) are arranged at the top of the transformer body (7);
one side of the left side and the right side of the transformer body (7) is connected with an external nitrogen injection device, and the other side of the transformer body is connected with a transformer simulation radiator (12);
the transformer body (7) is internally provided with a simulation oil pool.
2. The transformer fire simulation apparatus of claim 1, wherein:
the outlet bushing (1) comprises: the high-voltage side outgoing line sleeve, the medium-voltage side outgoing line sleeve and the low-voltage side outgoing line sleeve are respectively provided with a lifting seat and a test sleeve;
the high-voltage side outlet sleeve lifting seat is characterized in that a high-voltage sleeve fire simulation combustion oil pool (10) is arranged at the upper end of the high-voltage side outlet sleeve lifting seat, and a medium-voltage sleeve fire simulation combustion oil pool (11) is arranged at the upper end of the medium-voltage side outlet sleeve lifting seat.
3. The transformer fire simulation apparatus of claim 1 or 2, wherein:
the width of the high-voltage bushing fire simulation combustion oil pool (10) and the width of the medium-voltage bushing fire simulation combustion oil pool (11) are the length from the outer edge of the corresponding outgoing line bushing to the outer edge of the lifting seat.
4. The transformer fire simulation apparatus of claim 1, wherein:
the splash pipe (4) extends out of the lower part of the oil conservator (2), the upper end of the splash pipe is provided with a remote manual control valve (3), and the lower end of the splash pipe is provided with a duckbill nozzle (15).
5. The transformer fire simulation apparatus of claim 1, wherein:
the simulated combustion oil pool (6) of the simulated tap changer is arranged at the tap changer of the transformer body (7), and the value ranges of the length, the width and the height are respectively [0.6m,0.8m ], [0.6m,0.8m and 0.15 m.
6. The transformer fire simulation apparatus of claim 1, wherein:
the diameter of the pressure release device (9) is in a range of [20cm,30cm ].
7. The transformer fire simulation apparatus of claim 1, wherein:
the transformer body (7) is internally provided with a simulation oil pool structure, the surface of the outer side of the long edge of the transformer body is provided with a current terminal (13) which is communicated with an internal simulation winding, and the control of the current is realized through an external converter device.
8. The transformer fire simulation apparatus of claim 1 or 7, wherein:
the surface of the outer side of the long edge of the transformer body (7) is provided with a voltage terminal (14) which is communicated with a discharge gap in a simulation oil pool in the transformer body (7).
9. The transformer fire simulation apparatus of claim 1, wherein:
the first temperature probe (17), the second temperature probe (18), the third temperature probe (19) and the fourth temperature probe (20) are respectively arranged on the front, the rear, the left and the right sides of the outer side of the transformer body (7).
10. The transformer fire simulation apparatus of claim 1, wherein:
the external nitrogen injection device is connected with the transformer body (7) through a pipeline; wherein, the nitrogen injection device comprises a control system and a nitrogen injection system;
the control system adopts a relay for control, receives a signal DC220V, outputs a non-electric quantity contact of which a communication signal contact can bear the voltage of DC220V, and communicates with an upper computer through the non-electric quantity contact; when the transformer body (7) is in fire or explosion danger, a nitrogen exhaust pipe valve (8) of the nitrogen injection system is opened, nitrogen is injected into the transformer from the lower part of the transformer through a nitrogen injection pipeline of the nitrogen injection system, the oil temperature in the transformer is cooled, and air is isolated.
11. The ignition combustion method of the transformer fire simulation apparatus according to any one of claims 1 to 10, wherein the ignition combustion method comprises the following steps:
the ignition combustion method includes an internal combustion and an external combustion method;
the internal combustion method comprises the following steps: the transformer body (7) is internally electrically ignited, a voltage terminal (14) is externally connected with a pressurizing device, and an internal combustion mode is realized by igniting combustible materials through breakdown electric arc, wherein the combustible materials comprise gasoline and gasoline soaking materials;
the external combustion method comprises the following steps: standard transformer insulating oil is injected into any combustion oil pool, 40L-70L gasoline bags can be hung at a height of 200mm-300mm from the surface of a high-voltage bushing simulation combustion oil pool (10) and a medium-voltage bushing simulation combustion oil pool (11), and 100L-200L gasoline bags can be hung at a height of 200mm-300mm from the surface of a simulation tap changer combustion oil pool (6) and a top combustion oil pool (5);
during ignition, a mode of combining remote electronic ignition and manual ignition rod ignition is adopted;
the remote electronic ignition device adopts 220V alternating current, and leads on the gasoline oil bag are ignited by an ignition rod through a discharge tube and a high-temperature-resistant cable and by impact current; the manual ignition rod adopts carbon fiber's ignition rod, and the long-range manual control valve (3) through opening conservator and splash pipe (4) are igniteed to the gas jar ventilation production spark form, and the oil in conservator (2) fills transformer upper portion burning oil bath through duckbilled shower nozzle (15), forms transformer upper portion's trickling fire.
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CN202110898402.8A CN113470503A (en) | 2021-08-05 | 2021-08-05 | Transformer fire simulation device and ignition combustion method thereof |
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