CN111991726A - Compressed air foam fire extinguishing system for transformer fire extinguishing - Google Patents
Compressed air foam fire extinguishing system for transformer fire extinguishing Download PDFInfo
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- CN111991726A CN111991726A CN202010810790.5A CN202010810790A CN111991726A CN 111991726 A CN111991726 A CN 111991726A CN 202010810790 A CN202010810790 A CN 202010810790A CN 111991726 A CN111991726 A CN 111991726A
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- foam
- compressed air
- fire
- supply module
- liquid
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Abstract
The invention discloses a compressed air foam fire extinguishing system for transformer fire extinguishing, which comprises a compressed air supply module, a fire-fighting water supply module, a foam concentrate supply module and a mixed foam concentrate-compressed air generation module, wherein the compressed air supply module, the fire-fighting water supply module and the foam concentrate supply module are respectively connected with the mixed foam concentrate-compressed air generation module, and the mixed foam concentrate-compressed air generation module is connected with an engineering field injection device; the invention can realize system cleaning and redundant configuration of important equipment, has high reliability, saves water, generates foam with long liquid separating time, and overcomes the defects of large water consumption, easy re-combustion, low fire extinguishing reliability and the like of the existing converter station transformer fire extinguishing system.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a compressed air foam fire extinguishing system for transformer fire extinguishing.
Background
As a high-efficiency, low-consumption, multipurpose, light-weight and environment-friendly fire extinguishing system, a compressed Air Foam fire extinguishing system (CAFS) originates from Germany in the 30 th century, is used by more and more countries and regions at present, and is introduced into the technology in the 90 th century in China, the CAFS obtains general attention by the advantages of low water consumption, low water loss, high fire extinguishing efficiency and the like, and is continuously popularized and used by projects.
The transformer of the converter station is a key device which is crucial in the ultra-high voltage direct current transmission project, and is a core device of interfaces at two ends of rectification and inversion in an alternating current transmission system and a direct current transmission system. The investment and safe operation of the system are key and important guarantees for obtaining power transmission benefits in an ultrahigh voltage direct current power transmission project. Once the transformer is in fire disaster due to some reason, the whole converter station power system loses power and is in a paralyzed state, the stability of power supply is influenced, the safe operation of a converter valve of core equipment of the converter station is damaged, huge property loss and economic loss can be caused, even the life safety is damaged, meanwhile, if the transformer oil is in fire disaster, the fire can spread in a large area within a short time, and an electric shock accident is easily caused by carelessness in fire extinguishment, and the life safety of rescue personnel is greatly threatened.
The converter station has higher fire risk, and the current converter station transformer is generally provided with a water spray fire extinguishing system or a foam extinguishing agent fire extinguishing system. The water is used as a fire extinguishing agent to extinguish the oil fire of the transformer, on one hand, the fire extinguishing efficiency is low, most of the water sprayed to the transformer is lost, a small amount of the residual water is easy to evaporate, and a large amount of water resources are consumed; on the other hand, because water is not soluble with transformer oil, water can sink into transformer oil tank bottom fast, along with the gathering of water, once extrude transformer oil that catches fire oil tank, will turn into the condition of trickling fire in the twinkling of an eye, easily make the transformer produce the relighting, foam extinguishing agent fire extinguishing system that present widely engineering used only mixes water and foam concentrate after, and then through emitter just spout the equipment that needs to put out a fire, the foam that forms is lower, the liquid precipitation time of foam concentrate is shorter, the fire extinguishing effect is general, easily produces the problem such as relighting.
Disclosure of Invention
The invention aims to provide a compressed air foam fire extinguishing system for transformer fire extinguishing, which aims to solve the problems that foam formed by a foam extinguishing agent fire extinguishing system in the prior art is low, the foam liquid separation time is short, the fire extinguishing effect is general, and reburning is easy to generate.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a compressed air foam fire extinguishing system for transformer fire extinguishing, which comprises a compressed air supply module, a fire-fighting water supply module, a foam concentrate supply module and a mixed foam concentrate-compressed air generation module, wherein the compressed air supply module, the fire-fighting water supply module and the foam concentrate supply module are respectively connected with the mixed foam concentrate-compressed air generation module, and the mixed foam concentrate-compressed air generation module is connected with an engineering field injection device.
Furthermore, the mixed foam liquid-compressed air generation module comprises a liquid-liquid proportional mixer, a flow meter and a gas-liquid proportional mixer which are sequentially connected, the gas-liquid proportional mixer is connected with the engineering site injection device, the gas-liquid proportional mixer is connected with the compressed air supply module, and the liquid-liquid proportional mixer is respectively connected with the fire water supply module and the foam liquid supply module.
Furthermore, a pressure balance valve is arranged on a pipeline connecting the liquid-liquid proportional mixer and the foam liquid supply module.
Further, the compressed air supply module comprises an air compressor, a temperature transmitter, an air storage tank, a first pressure transmitter, a first flow transmitter, an electric ball valve and a first one-way valve which are connected in sequence; the fire-fighting water supply module comprises a first electric butterfly valve, a fire-fighting water tank, a fire-fighting water pump, a second electric butterfly valve, a second pressure transmitter and a second flow transmitter which are connected in sequence, wherein the first electric butterfly valve is connected with an external water source; the foam liquid supply module comprises a foam liquid tank, a first butterfly valve, a foam liquid pump, a third pressure transmitter, a third flow transmitter and a second butterfly valve which are connected in sequence.
Further, the compressed air supply module comprises at least two temperature transmitters connected in series and at least two first pressure transmitters connected in series; the fire fighting water supply module comprises at least two fire fighting water pumps connected in parallel and at least two second pressure transmitters connected in series; the foam concentrate supply module comprises at least two foam liquid pumps connected in parallel and at least two third pressure transmitters connected in series.
Further, at least two first liquid level meters connected in series are arranged on the fire water tank; and at least two second liquid level meters connected in series are arranged on the foam liquid tank.
Furthermore, be equipped with first short circuit pipeline between fire water tank and the second electric butterfly valve, be equipped with third electric butterfly valve on the first short circuit pipeline, third electric butterfly valve and fire pump are parallelly connected.
Furthermore, a second short circuit pipeline is arranged between the foam liquid tank and the third pressure transmitter, a second one-way valve and a pressure holding valve are sequentially arranged on the second short circuit pipeline, and the second one-way valve and the pressure holding valve are connected with the first butterfly valve and the foam liquid pump in parallel.
Furthermore, the fire-fighting water pump is connected with the foam liquid pump through a third short-circuit pipeline, and a third butterfly valve is arranged on the third short-circuit pipeline.
Furthermore, a drain pipe is arranged between the third flow transmitter and the second butterfly valve, and a drain ball valve is arranged on the drain pipe.
Compared with the prior art, the invention has the beneficial effects that:
the compressed air foam fire extinguishing system for transformer fire extinguishing provided by the invention solves the problems of low fire extinguishing efficiency, large water consumption, re-ignition and the like of a foam fire extinguishing agent fire extinguishing system in the prior art, has a regular automatic inspection function, and improves the reliability of the fire extinguishing system when a transformer breaks out suddenly;
the compressed air foam fire extinguishing system has the advantages of high water saving performance, high fire extinguishing efficiency, small volume, large foam output, good coverage of generated foam on transformer oil, safe use and convenience for large-scale popularization and use;
the compressed air foam fire extinguishing system automatically controls the fixed mixing ratio of the fire-fighting water and the foam liquid based on the pressure balance valve, the mixing ratio is controlled without controlling motors of a fire-fighting water pump and a foam liquid pump through a frequency converter, and the reliability is higher;
the fire-fighting water pump, the foam liquid pump and the important sensing and collecting devices in the compressed air foam fire-extinguishing system adopt redundant configuration, so that the overall reliability of the system is improved;
when a second liquid level meter on a foam liquid tank in the foam liquid supply module detects that the liquid level in the foam liquid tank is low, the fire fighting water can be continuously supplied by closing the valves of the foam liquid supply module and the compressed air supply module, which are connected into the mixed foam liquid-compressed air generation module, so that the function of continuously extinguishing fire is achieved, and the reliability of the system is greatly improved.
Drawings
Fig. 1 is a working schematic diagram of a compressed air foam fire extinguishing system for transformer fire extinguishing according to an embodiment of the present invention.
In the figure: 1. a compressed air supply module; 101. an air compressor; 102. a temperature transmitter; 103. a gas storage tank; 104. a first pressure transmitter; 105. a first flow transmitter; 106. an electric ball valve; 107. a first check valve; 2. a fire water supply module; 201. a first electric butterfly valve; 202. a fire water tank; 203. a fire pump; 204. a second electric butterfly valve; 205. a second pressure transmitter; 206. a second flow transmitter; 207. a first short circuit pipeline; 208. a third electric butterfly valve; 209. a first liquid level meter; 210. a third short-circuit pipeline; 211. a third butterfly valve; 3. a foam concentrate supply module; 301. a foam liquid tank; 302. a first butterfly valve; 303. a foam liquid pump; 304. a third pressure transmitter; 305. a third flow transmitter; 306. a second butterfly valve; 307. a second short circuit pipeline; 308. a second one-way valve; 309. a pressure sustaining valve; 310. a second level gauge; 311. a drain pipe; 312. a drain ball valve; 4. a mixed foam liquid-compressed air generation module; 401. liquid-liquid proportional gas mixer; 402. a flow meter; 403. a gas-liquid ratio mixer; 5. a pressure balancing valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a compressed air foam fire extinguishing system for transformer fire extinguishing according to an embodiment of the present invention includes a compressed air supply module 1, a fire-fighting water supply module 2, a foam concentrate supply module 3, and a mixed foam concentrate-compressed air generation module 4, wherein the compressed air supply module 1, the fire-fighting water supply module 2, and the foam concentrate supply module 3 are respectively connected to the mixed foam concentrate-compressed air generation module 4, and the mixed foam concentrate-compressed air generation module 4 is connected to an engineering site injection device.
The mixed foam liquid-compressed air generation module 4 comprises a liquid-liquid proportional mixer 401, a flow meter 402 and a gas-liquid proportional mixer 403 which are sequentially connected, the gas-liquid proportional mixer 403 is connected with an engineering site injection device, the gas-liquid proportional mixer 403 is connected with a compressed air supply module 1, the liquid-liquid proportional mixer 401 is respectively connected with a fire water supply module 2 and a foam liquid supply module 3, the flow meter 402 is in the form of an electromagnetic flowmeter, the flow meter 402 is used for monitoring the total flow of mixed liquid at the outlet of the liquid-liquid proportional mixer 401, monitoring the operation states of the liquid-liquid proportional mixer 401 and a pressure balance valve 5, setting a corresponding lower or higher flow alarm signal, and adjusting an electric ball valve 106 to ensure that the ratio of gas and mixed liquid entering the gas-liquid proportional mixer 403 is 7: 1.
The pipeline connecting the liquid-liquid proportional mixer 401 and the foam liquid supply module 3 is provided with a pressure balance valve 5, the mixing flow rate does not need to be adjusted by a frequency converter configured by the motors of the fire-fighting water pump 203 and the foam liquid pump 303, the pressure balance valve 5 can automatically and accurately control the mixing proportion of the fire-fighting water and the foam liquid to be about 3%, and the pressure balance valve 5 can also be configured with the mixing proportion of the fire-fighting water and the foam liquid to be about 6%.
The compressed air supply module 1 comprises an air compressor 101, a temperature transmitter 102, an air storage tank 103, a first pressure transmitter 104, a first flow transmitter 105, an electric ball valve 106 and a first one-way valve 107 which are sequentially connected, wherein the air compressor 101 is in a screw type frequency conversion, volume type or air cooling type, the temperature transmitter 102 is used for monitoring the air temperature at the outlet of the air compressor 101 in real time, the air storage tank 103 is used for stabilizing the air supply pressure of the compressed air supply module 1, the first pressure transmitter 104 is used for monitoring the outlet pressure at the outlet of the air storage tank 103 in real time and monitoring the air supply stability of the compressed air supply module 1, the first flow transmitter 105 is a vortex flowmeter and is used for monitoring the air inlet flow, the electric ball valve 106 is used for adjusting the air inlet flow, and the first one-way valve 107 only allows air to pass when air.
The fire fighting water supply module 2 comprises a first electric butterfly valve 201, a fire fighting water tank 202, a fire fighting water pump 203, a second electric butterfly valve 204, a second pressure transmitter 205 and a second flow transmitter 206 which are connected in sequence, wherein the first electric butterfly valve 201 is connected with an external water source; fire water tank 202 is airtight type, can effectively ensure that fire water does not receive the atmosphere pollution, and second flow transducer 206 is the electromagnetic flow meter, and the accessible is adjusted the aperture of second electric butterfly valve 204, adjusts the play water flow of fire pump 203, realizes the work operation of different flow operating modes.
The foam liquid supply module 3 comprises a foam liquid tank 301, a first butterfly valve 302, a foam liquid pump 303, a third pressure transmitter 304, a third flow transmitter 305 and a second butterfly valve 306 which are connected in sequence, wherein the foam liquid tank 301 is in a closed type and can effectively ensure that the foam liquid is not polluted by atmosphere, and the third flow transmitter 305 is in an electromagnetic flow meter type and is used for monitoring the working flow of the foam liquid pump 303.
The compressed air supply module 1 comprises at least two temperature transmitters 102 connected in series and at least two first pressure transmitters 104 connected in series, both the temperature transmitters 102 and the first pressure transmitters 104 being of redundant configuration.
The fire water supply module 2 comprises at least two fire water pumps 203 connected in parallel and at least two second pressure transmitters 205 connected in series, the fire water pumps 203 adopt redundant configuration, normal operation is in a state of one use and one standby, when the fire water pumps 203 working in normal operation break down, the fire water pumps 203 can be automatically switched to standby, the working reliability of the fire water supply module 2 is effectively improved, the second pressure transmitters 205 adopt redundant configuration, the water outlet pressure of the fire water pumps 203 is monitored, and the running state of the fire water pumps 203 is monitored.
The foam liquid supply module 3 comprises at least two foam liquid pumps 303 connected in parallel and at least two third pressure transmitters 304 connected in series, the foam liquid pumps 303 adopt redundant configuration, the foam liquid pumps 303 are in a state of one use and one standby in normal operation, when the foam liquid pumps 303 in normal operation have faults, the foam liquid pumps can be automatically switched to the standby foam liquid pumps 303 to work, the working reliability of the foam liquid supply module 3 is effectively improved, the third pressure transmitters 304 adopt redundant configuration and are used for monitoring the pressure at the outlets of the foam liquid pumps 303 and monitoring the operation states of the foam liquid pumps 303 in real time.
Be equipped with two at least first level gauges 209 of establishing ties on the fire water tank 202, first level gauge 209 adopts redundant configuration, when monitoring during the liquid level of fire water tank 202 low, opens first electric butterfly valve 201, to moisturizing in the fire water tank 202, when the liquid level reaches the setting value, first electric butterfly valve 201 closes, can realize the automatic water supply of fire water tank 202.
At least two second liquid level meters 310 connected in series are arranged on the foam liquid tank 301, the second liquid level meters 310 are in redundant configuration, and when the situation that the liquid level in the foam liquid tank 301 is low is monitored, an alarm signal is sent out to prompt operation and maintenance personnel to replenish the foam liquid in the foam liquid tank 301.
A first short-circuit pipeline 207 is arranged between the fire water tank 202 and the second electric butterfly valve 204, a third electric butterfly valve 208 is arranged on the first short-circuit pipeline 207, the third electric butterfly valve 208 is connected with the fire pump 203 in parallel, and is used for distributing the flow of fire water entering the mixed foam liquid-compressed air generation module 4 and matched with the second electric butterfly valve 204 and the second flow transmitter 206.
A second short-circuit pipeline 307 is arranged between the foam liquid tank 301 and the third pressure transmitter 304, a second one-way valve 308 and a pressure-holding valve 309 are sequentially arranged on the second short-circuit pipeline 307, the second one-way valve 308 and the pressure-holding valve 309 are connected with the first butterfly valve 302 and the foam liquid pump 303 in parallel, the pressure-holding valve 309 is used for stabilizing the pressure at the outlet of the foam liquid pump 303 within a certain design range, and the second one-way valve 308 is used for preventing the foam liquid in the foam liquid tank 301 from flowing back in a pipeline.
The fire-fighting water pump 203 and the foam liquid pump 303 are connected through a third short-circuit pipeline 210, and a third butterfly valve 211 is arranged on the third short-circuit pipeline 210.
A drain pipe 311 is arranged between the third flow transducer 305 and the second butterfly valve 306, a drain ball valve 312 is arranged on the drain pipe 311, after the compressed air foam fire extinguishing system finishes working or is debugged for the first time, the first butterfly valve 302 at the outlet of the foam liquid tank 301 can be manually closed, the third butterfly valve 211 at the outlet of the foam liquid pump 303 is closed, the drain ball valve 312 at the outlet of the foam liquid pump 303 is opened, the fire-fighting water pump 203 is started, the cleaning function of a foam liquid pipeline can be realized, and after the cleaning is finished, the original state of the valve is recovered.
The compressed air foam fire extinguishing system for transformer fire extinguishing provided by the invention can realize system cleaning and redundant configuration of important equipment, has high reliability, saves water, has long foam liquid separation time, and overcomes the defects of high water consumption, easy re-combustion, low fire extinguishing reliability and the like of the existing converter station transformer fire extinguishing system.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A compressed air foam fire extinguishing system for transformer extinguishment, characterized in that: the fire fighting water supply device comprises a compressed air supply module (1), a fire fighting water supply module (2), a foam concentrate supply module (3) and a mixed foam concentrate-compressed air generation module (4), wherein the compressed air supply module (1), the fire fighting water supply module (2) and the foam concentrate supply module (3) are respectively connected with the mixed foam concentrate-compressed air generation module (4), and the mixed foam concentrate-compressed air generation module (4) is connected with an engineering field injection device.
2. A compressed air foam fire suppression system for transformer fire suppression according to claim 1, wherein: the mixed foam liquid-compressed air generation module (4) comprises a liquid-liquid proportional mixer (401), a flow meter (402) and a gas-liquid proportional mixer (403) which are sequentially connected, the gas-liquid proportional mixer (403) is connected with an engineering site injection device, the gas-liquid proportional mixer (403) is connected with a compressed air supply module (1), and the liquid-liquid proportional mixer (401) is respectively connected with a fire water supply module (2) and a foam liquid supply module (3).
3. A compressed air foam fire suppression system for transformer fire suppression according to claim 2, wherein: and a pressure balance valve (5) is arranged on a pipeline connected with the liquid-liquid proportional mixer (401) and the foam liquid supply module (3).
4. A compressed air foam fire suppression system for transformer fire suppression according to claim 1, wherein: the compressed air supply module (1) comprises an air compressor (101), a temperature transmitter (102), an air storage tank (103), a first pressure transmitter (104), a first flow transmitter (105), an electric ball valve (106) and a first one-way valve (107) which are connected in sequence; the fire fighting water supply module (2) comprises a first electric butterfly valve (201), a fire fighting water tank (202), a fire fighting water pump (203), a second electric butterfly valve (204), a second pressure transmitter (205) and a second flow transmitter (206) which are sequentially connected, wherein the first electric butterfly valve (201) is connected with an external water source; the foam liquid supply module (3) comprises a foam liquid tank (301), a first butterfly valve (302), a foam liquid pump (303), a third pressure transmitter (304), a third flow transmitter (305) and a second butterfly valve (306) which are connected in sequence.
5. A compressed air foam fire suppression system for transformer fire suppression according to claim 4, wherein: the compressed air supply module (1) comprises at least two temperature transmitters (102) connected in series and at least two first pressure transmitters (104) connected in series; the fire fighting water supply module (2) comprises at least two fire fighting water pumps (203) connected in parallel and at least two second pressure transmitters (205) connected in series; the foam concentrate supply module (3) comprises at least two foam liquid pumps (303) connected in parallel and at least two third pressure transmitters (304) connected in series.
6. A compressed air foam fire suppression system for transformer fire suppression according to claim 4, wherein: at least two first liquid level meters (209) connected in series are arranged on the fire water tank (202); and at least two second liquid level meters (310) connected in series are arranged on the foam liquid tank (301).
7. A compressed air foam fire suppression system for transformer fire suppression according to claim 4, wherein: be equipped with first short circuit pipeline (207) between fire water tank (202) and second electric butterfly valve (204), be equipped with third electric butterfly valve (208) on first short circuit pipeline (207), third electric butterfly valve (208) are parallelly connected with fire pump (203).
8. A compressed air foam fire suppression system for transformer fire suppression according to claim 4, wherein: be equipped with second short circuit pipeline (307) between foam fluid tank (301) and third pressure transmitter (304), be equipped with second check valve (308) and hold on the second short circuit pipeline (307) in proper order and press valve (309), second check valve (308) and hold on the valve (309) and first butterfly valve (302) and foam liquid pump (303) are parallelly connected.
9. A compressed air foam fire suppression system for transformer fire suppression according to claim 4, wherein: the fire-fighting water pump (203) is connected with the foam liquid pump (303) through a third short-circuit pipeline (210), and a third butterfly valve (211) is arranged on the third short-circuit pipeline (210).
10. A compressed air foam fire suppression system for transformer fire suppression according to claim 4, wherein: a drain pipe (311) is arranged between the third flow transmitter (305) and the second butterfly valve (306), and a drain ball valve (312) is arranged on the drain pipe (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810790.5A CN111991726A (en) | 2020-08-13 | 2020-08-13 | Compressed air foam fire extinguishing system for transformer fire extinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010810790.5A CN111991726A (en) | 2020-08-13 | 2020-08-13 | Compressed air foam fire extinguishing system for transformer fire extinguishing |
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| CN111991726A true CN111991726A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010810790.5A Pending CN111991726A (en) | 2020-08-13 | 2020-08-13 | Compressed air foam fire extinguishing system for transformer fire extinguishing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870616A (en) * | 2021-01-25 | 2021-06-01 | 南京南瑞继保电气有限公司 | CAFS coordinated control system |
| CN113198130A (en) * | 2021-05-25 | 2021-08-03 | 西安理工大学 | Fire extinguishing system with injection type compressed air foam metering function and using method thereof |
| CN113577608A (en) * | 2021-08-06 | 2021-11-02 | 国网安徽省电力有限公司电力科学研究院 | Compressed air foam fire extinguishing device |
| CN114306998A (en) * | 2021-12-31 | 2022-04-12 | 上海震旦施密茨消防装备有限公司 | Fixed type compressed air foam fire extinguishing system and using method thereof |
| CN115518325A (en) * | 2021-06-25 | 2022-12-27 | 常州博瑞电力自动化设备有限公司 | Fixed type compressed air foam fire extinguishing system and design method thereof |
-
2020
- 2020-08-13 CN CN202010810790.5A patent/CN111991726A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870616A (en) * | 2021-01-25 | 2021-06-01 | 南京南瑞继保电气有限公司 | CAFS coordinated control system |
| CN113198130A (en) * | 2021-05-25 | 2021-08-03 | 西安理工大学 | Fire extinguishing system with injection type compressed air foam metering function and using method thereof |
| CN115518325A (en) * | 2021-06-25 | 2022-12-27 | 常州博瑞电力自动化设备有限公司 | Fixed type compressed air foam fire extinguishing system and design method thereof |
| CN113577608A (en) * | 2021-08-06 | 2021-11-02 | 国网安徽省电力有限公司电力科学研究院 | Compressed air foam fire extinguishing device |
| CN114306998A (en) * | 2021-12-31 | 2022-04-12 | 上海震旦施密茨消防装备有限公司 | Fixed type compressed air foam fire extinguishing system and using method thereof |
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