CN108470502B - Linear fire source spreading device - Google Patents
Linear fire source spreading device Download PDFInfo
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- CN108470502B CN108470502B CN201810398602.5A CN201810398602A CN108470502B CN 108470502 B CN108470502 B CN 108470502B CN 201810398602 A CN201810398602 A CN 201810398602A CN 108470502 B CN108470502 B CN 108470502B
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- 230000007480 spreading Effects 0.000 title claims abstract description 82
- 239000000779 smoke Substances 0.000 claims abstract description 149
- 238000004088 simulation Methods 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims description 59
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 35
- 239000003546 flue gas Substances 0.000 claims description 35
- 239000000446 fuel Substances 0.000 claims description 32
- 238000002485 combustion reaction Methods 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 11
- 230000008033 biological extinction Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000003517 fume Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Ventilation (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a linear fire source spreading device, which comprises a linear fire source spreading simulation system, a smoke and fire source spreading control system and a fire source power measurement system; the linear fire spreading simulation system simulates a linear fire source, the smoke spreading simulation system simulates smoke spreading and leads the smoke to the linear fire source, the smoke and fire source spreading control system can control the spreading state of the fire source and the smoke, and the fire source power measurement system measures the power of the fire source. The invention has the advantages that: the invention can realize the spreading of the fire source attenuation and extinction in the area after the fire passes, the flame spreading direction and the speed can be controlled remotely and accurately by a computer, the synchronous spreading of the smoke and the flame can be realized, and the smoke flow rate and the concentration can be measured accurately.
Description
Technical Field
The invention relates to the field of electric fires, in particular to a linear fire source spreading device.
Background
The cable channel, including cable trench, cable tunnel and electric shaft etc. are the main place of laying of long-range electric power transmission line, and when the cable appears electric fault because of insulating ageing etc. probably to initiate the conflagration, the cable channel is long and narrow because its structure, and flame and flue gas spread fast in its inside, just probably can bring great threat to electric power system in the short time. Therefore, the research on the fire mechanism and the prevention and control technology of the cable channel has important significance. Simulation tests are an important means of fire research, and the accuracy of the simulation tests has a great relationship with the simulation of a fire source. In the development of fire test researches, an ignition source is the most widely used fire source, however, in the electric power place fire caused by a cable, a point type simulation fire source is not applicable, and a real fire source is a linear fire source which spreads according to a certain mode. In terms of patents, the prior art related to fire source simulation devices is: the authorized bulletin number CN206449642U (Ji Jie, etc.) discloses a porous burner combination module capable of simulating gas fire sources with different sizes and shapes, which can ensure stable and uniform flames generated on the surface of a burner, and simultaneously presents burners with different sizes and shapes in different arrangement and combination modes of burner monomers; the invention mainly aims at tunnel fire research, and the fire source is positioned on a movable trolley, so that the variable speed movement of the fire source in a tunnel can be realized in the research; the authorized bulletin number CN204720080U (Chen Changkun, etc.) discloses a spliced type moving fire source tunnel fire disaster simulation test device, wherein a fire source is arranged on a fixed rail, and the fire source can move along the ground fixed rail in the test. It can be seen that the development of simulated fire sources in fire tests is of great interest, but the development of simulated fire sources is not suitable for the fire research of power cable channels at present. Therefore, the simulation fire source capable of continuously spreading flame and smoke in the set direction and speed can be realized, and the simulation fire source has important significance for developing a power cable channel fire simulation test, revealing the power cable channel fire rule and improving the power cable channel fire extinguishing technology, so that the applicable linear fire source spreading device is in urgent need of development.
Disclosure of Invention
The invention aims to solve the technical problems that: the problem that the linear fire source cannot be simulated to spread in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the linear fire source spreading device comprises a linear fire source spreading simulation system, wherein the linear fire source spreading simulation system comprises a fire source generation unit, a fuel supply unit, a combustion improver supply unit, a fuel flow control device, a combustion improver flow control device and a fire source gas pipe; the fuel supply unit is communicated with the inlet of the fuel flow control device through a fire source gas pipe, the combustion improver supply unit is communicated with the inlet of the combustion improver flow control device through the fire source gas pipe, and the outlet of the fuel flow control device is communicated with the outlet of the combustion improver flow control device through the fire source gas pipe and then connected to the fire source generation unit.
The optimizing and simulating system comprises a smoke spreading simulation system, wherein the smoke spreading simulation system comprises a smoke generating device, a smoke inlet flow control device, a smoke spreading device and a smoke gas transmission pipe; the smoke outlet of the smoke generating device is communicated with the inlet of the smoke inlet flow control device through a smoke gas pipe, and the outlet of the smoke inlet flow control device is communicated with the smoke inlet of the smoke spreading device through a smoke gas pipe;
the smoke spreading device is arranged below the fire source generating unit and is connected with the fire source generating unit in a sealing way.
Preferably, the smoke spreading simulation system further comprises a smoke discharge flow control device and a waste smoke treatment device, wherein an inlet of the smoke discharge flow control device is communicated with a smoke outlet of the smoke spreading device through a smoke gas pipe, and an outlet of the smoke discharge flow control device is communicated with the waste smoke treatment device through the smoke gas pipe.
Preferably, a smoke generating agent and a smoke concentration measuring device are arranged in the smoke generating device, and a heating device is arranged below the smoke generating agent.
Preferably, the flue gas spreading device is provided with a plurality of shutter valves, the shutter valves are distributed in an array, the longitudinal positions of the shutter valves correspond to the longitudinal positions of the fire source outlets, and the shutter valves are communicated with the flue gas inlet of the flue gas spreading device.
The system is optimized and also comprises a smoke and fire source spreading control system, wherein the smoke and fire source spreading control system comprises a centralized control unit and a signal transmission line; the centralized control unit is connected with the fire source generating unit through a signal transmission line.
The optimized fire source power measuring system comprises a smoke collecting device and a measuring device; the measuring device is arranged in the smoke collecting device, and the smoke collecting device is arranged above the fire source generating unit.
Preferably, the fume collecting device comprises a fume collecting hood, a gas pipeline and a fan, wherein the fume collecting hood is connected with the fan through the gas pipeline;
the measuring device comprises a gas flow rate measuring device and a gas concentration measuring device, and the gas flow rate measuring device and the gas concentration measuring device are arranged in the gas pipeline.
Preferably, the fire source generating unit comprises a plurality of fire source outlets, ignition devices and air supply ports, the fire source outlets are distributed in an array, the ignition devices are arranged in the fire source outlets, the first ends of the air supply ports are communicated with the fire source outlets, and the second ends of the air supply ports are communicated with the outlets of the fuel flow control devices and the outlets of the combustion improver flow control devices through fire source air delivery pipes.
Preferably, the flue gas spreading simulation system further comprises a pressure control valve and a flue gas treatment device, wherein an inlet of the pressure control valve is communicated with a smoke outlet of the flue gas generation device through a flue gas transmission pipe, and an outlet of the pressure control valve is communicated with the flue gas treatment device through the flue gas transmission pipe.
The invention has the beneficial effects that:
1. the method can simulate the spreading of a linear fire source in a cable passage in reality so as to reveal the fire rule of the power cable passage and promote the fire extinguishing technology of the power cable passage;
2. the invention can realize the simulation of a linear spreading fire source, comprising the transverse spreading and the longitudinal spreading of the fire source, wherein the longitudinal spreading mode also comprises single-side spreading and double-side spreading, and meanwhile, the invention can realize the spreading of the attenuation and extinction of the fire source in the area after the fire passes;
3. the simulated linear spreading fire source can realize remote accurate control on the flame spreading direction and the flame spreading speed through a computer, and meanwhile, the common fire source spreading mode can also realize integrated control;
4. the invention can realize synchronous spreading of the flue gas and flame, and simultaneously can realize accurate measurement of the flow velocity and the concentration of the flue gas.
Drawings
Fig. 1 is a schematic view of a line type fire spreading device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fire source generating unit according to an embodiment of the present invention;
FIG. 3 is a schematic view of a smoke propagation apparatus according to an embodiment of the present invention;
the fire source generation unit-11, the fuel supply unit-12, the combustion improver supply unit-13, the fire source gas pipe-14, the smoke generation device-21, the smoke inlet flow control device-22, the smoke spreading device-23, the smoke gas pipe-24, the pressure control valve-25, the smoke treatment device-26, the smoke discharge flow control device-27, the waste smoke treatment device-28, the centralized control unit-31, the signal transmission line-32, the smoke collecting device-41, the measurement device-42, the fire source outlet-111, the gas supply port-112, the fuel flow control device-121, the combustion improver flow control device-131, the smoke generating agent-211, the smoke concentration measurement device-212, the heating device-213, the shutter valve-231, the smoke collecting cover-411, the gas pipeline-412, the gas flow measurement device-421, the gas concentration measurement device-422 and the quartz sand-1111.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
A linear fire source spreading device comprises a linear fire source spreading simulation system, a smoke and fire source spreading control system and a fire source power measurement system.
As shown in fig. 1, the linear fire spread simulation system includes a fire source generation unit 11, a fuel supply unit 12, a combustion improver supply unit 13, a fuel flow control device 121, a combustion improver flow control device 131, and a fire source gas pipe 14; the fuel supply unit 12 is communicated with the inlet of the fuel flow control device 121 through a fire source gas pipe 14, the combustion improver supply unit 13 is communicated with the inlet of the combustion improver flow control device 131 through the fire source gas pipe 14, and the outlet of the fuel flow control device 121 is communicated with the outlet of the combustion improver flow control device 131 through the fire source gas pipe 14 and then connected to the fire source generation unit 11; in this embodiment, the fuel in the fuel supply unit 12 is propane, and the combustion improver in the combustion improver supply unit 13 is compressed air.
As shown in fig. 1, the flue gas spreading simulation system comprises a flue gas generating device 21, a flue gas inlet flow control device 22, a flue gas spreading device 23 and a flue gas transmission pipe 24; the smoke outlet of the smoke generating device 21 is communicated with the inlet of the smoke inlet flow control device 22 through a smoke gas pipe 24, and the outlet of the smoke inlet flow control device 22 is communicated with the smoke inlet of the smoke spreading device 23 through the smoke gas pipe 24.
The smoke spreading device 23 is arranged below the fire source generating unit 11, and the smoke spreading device 23 is connected with the fire source generating unit 11 in a sealing way.
As shown in fig. 1, the smoke and fire spreading control system comprises a centralized control unit 31 and a signal transmission line 32; the centralized control unit 31 is connected with the fire source generating unit 11 and the smoke propagating device 23 through signal transmission lines 32.
As shown in fig. 1, the fire source power measurement system comprises a smoke collecting device 41 and a measurement device 42; the measuring device 42 is placed in the smoke collecting device 41, and the smoke collecting device 41 is placed above the fire source generating unit 11.
As shown in fig. 2, the fire source generating unit 11 includes a plurality of fire source outlets 111, ignition devices, and air supply ports 112, the fire source outlets 111 are arranged in an array, the fire source outlets 111 in this embodiment are arranged in a row of 16 in a lateral direction, 2 rows are arranged in a longitudinal direction, 32 ignition devices are arranged in total, 32 ignition devices are arranged in the corresponding fire source outlets 111, the air supply ports 112 are arranged in 32, a first end of the air supply ports 112 is led to the corresponding fire source outlets 111, and a second end of the air supply ports 112 is communicated with an outlet of the corresponding fuel flow control device 121 and an outlet of the combustion improver flow control device 131 through a fire source gas pipe 14 (not specifically shown in the figure).
The air supply port 112 is provided with an electronic valve (not shown in the figure), the electronic valve and the ignition device are connected with the centralized control unit 31 through the signal transmission line 32, and the centralized control unit 31 can control the on/off of the corresponding electronic valve and the ignition device according to the requirement.
As shown in fig. 3, the smoke spreading device 23 is provided with a plurality of shutter valves 231, the shutter valves 231 are distributed in an array, in this embodiment, the shutter valves 231 are transversely disposed 16, the longitudinal positions of the shutter valves 231 correspond to the longitudinal positions of the fire source outlets 111, that is, one shutter valve 231 corresponds to 2 fire source outlets 111 above the shutter valves 231 in this embodiment, and the shutter valves 231 are communicated with the smoke inlet of the smoke spreading device 23, the shutter valves 231 are connected with the centralized control unit 31 through the signal transmission line 32, and the centralized control unit 31 can control the opening and closing of the corresponding shutter valves 231 as required.
As shown in fig. 2, quartz sand 1111 is laid in the fire source outlet 111.
As shown in fig. 1, the flue gas spreading simulation system further comprises a pressure control valve 25 and a flue gas treatment device 26, wherein an inlet of the pressure control valve 25 is communicated with a smoke outlet of the flue gas generation device 21 through a flue gas transmission pipe 24, and an outlet of the pressure control valve 25 is communicated with the flue gas treatment device 26 through the flue gas transmission pipe 24.
As shown in fig. 1, the smoke propagation simulation system further comprises a smoke flow control device 27 and a smoke treatment device 28, wherein an inlet of the smoke flow control device 27 is communicated with a smoke outlet of the smoke propagation device 23 through a smoke gas pipe 24, and an outlet of the smoke flow control device 27 is communicated with the smoke treatment device 28 through the smoke gas pipe 24.
As shown in fig. 1, the smoke generating device 21 is provided with a smoke generating agent 211 and a smoke concentration measuring device 212, and a heating device 213 is provided below the smoke generating agent 211.
As shown in fig. 1, the fume collecting device 41 comprises a fume collecting hood 411, a gas pipeline 412 and a fan, wherein the fume collecting hood 411 is connected with the fan through the gas pipeline 412; the measuring device 42 includes a gas flow rate measuring device 421 and a gas concentration measuring device 422, and the gas flow rate measuring device 421 and the gas concentration measuring device 422 are disposed in the gas pipe 412.
Working principle:
1. the fuel of the fuel supply unit 12 flows through the fuel flow control device 121, the combustion improver of the combustion improver supply unit 13 flows through the combustion improver flow control device 131, the fuel flow control device 121 and the combustion improver flow control device 131 can respectively control the fuel and the combustion improver flow, the fuel and the combustion improver which are combined together are conveyed to the air supply port 112 through the fire source air pipe 14 and flow through the electronic valve on the air supply port 112 and then to the fire source outlet 111, and through the quartz sand 1111, the quartz sand 1111 can make the flow of the fuel and the combustion improver flowing through the place uniform, the central control unit 31 controls the opening and closing of one or more electronic valves, so that the control of the flow of the fuel and the combustion improver in the corresponding air supply port 112 can be realized, and the control of whether one or more ignition devices ignites the fuel can be realized, so that one or more fire source outlets 111 can be controlled according to experimental needs to continuously and successively simulate the fire source, and the spreading simulation of the type fire source can be performed.
2. The smoke generating agent 211 generates smoke under the heating of the heating device 213, the smoke concentration measuring device 212 can detect the concentration of the smoke in the smoke generating device 21, the smoke flows through the smoke inlet flow control device 22 through the smoke gas pipe 24 and then is conveyed to the smoke spreading device 23, then enters the fire source generating unit 11 through the shutter valve 231, the spreading condition of the smoke is continuously and successively simulated according to a certain rule by controlling the opening and closing of one or more shutter valves 231 through the centralized control unit 31, the smoke flow control device 22 can control the flow of the smoke conveying, meanwhile, the smoke in the smoke generating device 21 is led to the smoke treatment device 26 through the pressure control valve 25, the smoke treatment device 26 processes the redundant smoke so as to ensure the stable pressure in the smoke generating device 21 and the stable smoke conveying flow, and in addition, after the experiment is finished, the redundant waste gas flows into the waste smoke treatment device 28 through the smoke discharge flow control device 27 to treat the waste gas.
3. Under the action of the fan, the flue gas from the fire source generating unit 11 sequentially flows through the fume collecting hood 411 and the gas pipeline 412, the gas flow rate measuring device 421 and the gas concentration measuring device 422 respectively detect the flow rate and the concentration of the flue gas, then the fire source heat release rate is calculated based on an oxygen consumption method according to the measurement result, after the fire source heat release rate is measured, the fire source heat release rate can be compared with a set value, and then the flow rate and the mixing proportion of fuel and compressed air in the linear fire spreading simulation system are adjusted.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. A linear fire source spreading device is characterized in that: the linear fire spreading simulation system comprises a fire source generation unit (11), a fuel supply unit (12), a combustion improver supply unit (13), a fuel flow control device (121), a combustion improver flow control device (131) and a fire source gas pipe (14); the fuel supply unit (12) is communicated with the inlet of the fuel flow control device (121) through a fire source gas pipe (14), the combustion improver supply unit (13) is communicated with the inlet of the combustion improver flow control device (131) through the fire source gas pipe (14), and the outlet of the fuel flow control device (121) is communicated with the outlet of the combustion improver flow control device (131) through the fire source gas pipe (14) and then connected to the fire source generation unit (11);
the system also comprises a smoke spreading simulation system, wherein the smoke spreading simulation system comprises a smoke generating device (21), a smoke inlet flow control device (22), a smoke spreading device (23) and a smoke gas pipe (24); the smoke outlet of the smoke generating device (21) is communicated with the inlet of the smoke inlet flow control device (22) through a smoke gas pipe (24), and the outlet of the smoke inlet flow control device (22) is communicated with the smoke inlet of the smoke spreading device (23) through the smoke gas pipe (24); the smoke spreading device (23) is arranged below the fire source generating unit (11), and the smoke spreading device (23) is connected with the fire source generating unit (11) in a sealing way;
the system also comprises a smoke and fire source spreading control system, wherein the smoke and fire source spreading control system comprises a centralized control unit (31) and a signal transmission line (32); the centralized control unit (31) is connected with the fire source generating unit (11) through a signal transmission line (32);
the fire source power measuring system comprises a smoke collecting device (41) and a measuring device (42); the measuring device (42) is arranged in the smoke collecting device (41), and the smoke collecting device (41) is arranged above the fire source generating unit (11); the fire source generating unit (11) comprises a plurality of fire source outlets (111), ignition devices and air supply ports (112), wherein the fire source outlets (111) are arranged in an array, the ignition devices are arranged in the fire source outlets (111), the first ends of the air supply ports (112) are communicated with the fire source outlets (111), and the second ends of the air supply ports (112) are communicated with the outlets of the fuel flow control device (121) and the outlets of the combustion improver flow control device (131) through fire source air delivery pipes (14).
2. The linear fire spreading apparatus according to claim 1, wherein: the smoke spreading simulation system further comprises a smoke discharge flow control device (27) and a waste smoke treatment device (28), wherein an inlet of the smoke discharge flow control device (27) is communicated with a smoke outlet of the smoke spreading device (23) through a smoke gas pipe (24), and an outlet of the smoke discharge flow control device (27) is communicated with the waste smoke treatment device (28) through the smoke gas pipe (24).
3. The linear fire spreading apparatus according to claim 1, wherein: the flue gas generating device (21) is internally provided with a flue gas generating agent (211) and a flue gas concentration measuring device (212), and a heating device (213) is arranged below the flue gas generating agent (211).
4. The linear fire spreading apparatus according to claim 1, wherein: the smoke spreading device (23) is provided with a plurality of shutter valves (231), the shutter valves (231) are distributed in an array, the longitudinal positions of the shutter valves (231) correspond to the longitudinal positions of the fire source outlets (111), and the shutter valves (231) are communicated with smoke inlets of the smoke spreading device (23).
5. The linear fire spreading apparatus according to claim 1, wherein: the smoke collecting device (41) comprises a smoke collecting hood (411), a gas pipeline (412) and a fan, wherein the smoke collecting hood (411) is connected with the fan through the gas pipeline (412);
the measuring device (42) comprises a gas flow rate measuring device (421) and a gas concentration measuring device (422), and the gas flow rate measuring device (421) and the gas concentration measuring device (422) are arranged in the gas pipeline (412).
6. The linear fire spreading apparatus according to claim 1, wherein: the flue gas spreading simulation system further comprises a pressure control valve (25) and a flue gas treatment device (26), wherein an inlet of the pressure control valve (25) is communicated with a smoke outlet of the flue gas generation device (21) through a flue gas transmission pipe (24), and an outlet of the pressure control valve (25) is communicated with the flue gas treatment device (26) through the flue gas transmission pipe (24).
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| CN201810398602.5A CN108470502B (en) | 2018-04-28 | 2018-04-28 | Linear fire source spreading device |
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| CN201810398602.5A CN108470502B (en) | 2018-04-28 | 2018-04-28 | Linear fire source spreading device |
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| CN108470502B true CN108470502B (en) | 2023-11-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109345938B (en) * | 2018-11-06 | 2021-11-12 | 北京工业大学 | Modular underground pipe gallery space conflagration safety research model device |
| CN113781887B (en) * | 2021-10-25 | 2023-04-04 | 国网江苏省电力有限公司电力科学研究院 | Fire inversion simulation analysis system based on container type cable tunnel |
| CN114783265A (en) * | 2022-03-03 | 2022-07-22 | 温州大学 | Underground structure secondary fire simulation test device based on vibrating table simulation earthquake load |
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| CN108470502A (en) | 2018-08-31 |
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