CN112206449A - Fire extinguishing and gas-extinguishing anti-prying linkage fire extinguishing system and working principle thereof - Google Patents
Fire extinguishing and gas-extinguishing anti-prying linkage fire extinguishing system and working principle thereof Download PDFInfo
- Publication number
- CN112206449A CN112206449A CN202011358164.3A CN202011358164A CN112206449A CN 112206449 A CN112206449 A CN 112206449A CN 202011358164 A CN202011358164 A CN 202011358164A CN 112206449 A CN112206449 A CN 112206449A
- Authority
- CN
- China
- Prior art keywords
- fire extinguishing
- fire
- gas
- foam
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
- A62C31/07—Nozzles specially adapted for fire-extinguishing with two or more outlets for different media
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/02—Respiratory apparatus with compressed oxygen or air
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/002—Apparatus for mixing extinguishants with water
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
Landscapes
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Public Health (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention belongs to the field of fire-fighting equipment, relates to a multifunctional skid-mounted linkage emergency fire-fighting rescue device for drilling and repairing a well site to generate a fire disaster, and particularly relates to a fire-extinguishing and pneumatic skid-mounted linkage fire-extinguishing system and a working principle thereof. The device comprises a compressor, an explosion-proof box, a gas storage device, an oxygen mask assembly and a movable arrangement device, wherein the oxygen mask assembly comprises a plurality of air quick interfaces and an oxygen mask, the movable arrangement device comprises a plurality of arrangement trolleys, and the arrangement trolleys comprise trolleys and foam tanks, clean water tanks and gas cylinders arranged on the trolleys. The fire extinguishing and gas prying-resistant linkage fire extinguishing system can form fire extinguishing combinations such as dry foam, positive pressure foam and high-pressure water mist through high-pressure gas and different fire extinguishing agents according to different fire characteristics, and achieves a high-efficiency fire extinguishing effect.
Description
Technical Field
The invention belongs to the field of fire-fighting equipment, relates to a multifunctional skid-mounted linkage emergency fire-fighting rescue device for drilling and repairing a well site to generate a fire disaster, and particularly relates to a fire-extinguishing and pneumatic skid-mounted linkage fire-extinguishing system and a working principle thereof.
Background
At present, water, dry powder, foam, carbon dioxide and the like are commonly used as fire extinguishing agents at home and abroad. The requirements of fire extinguishing agent equipment of the drilling well site in the standard 'drilling well site, equipment and operation safety technical regulation' of the national oil and gas industry (SY 5974 ≥ 2014) are that 35L (total capacity ≥ 200L) foam fire extinguishers, 8kg multiplied by 10 dry powder fire extinguishers and 5kg multiplied by 2 carbon dioxide fire extinguishers are equipped. Meanwhile, no clear standard specification exists for well workover well site fire protection management. In the actual fire control management process, the fire situation of a drilling and repairing well site is complex, different fire extinguishing agents have different fire extinguishing mechanisms and characteristics, a single fire extinguishing agent cannot completely and effectively play a role, and the field fire extinguisher has the advantages of small fire extinguishing equivalent, small protection area, poor maneuverability, short injection time and difficulty in achieving a good fire extinguishing effect.
During the well drilling and repairing operation, there are risks of fire, explosion and the like, and the types of fire caused by the fire include oil fire, natural gas fire, electrical fire and the like. The well site is gone out the back equipment and is mainly for portable and cart based foam, the dry powder, the carbon dioxide fire extinguisher, it is little to put out a fire the equivalent weight, the protection area is little, mobility and pertinence are poor, only can satisfy the emergent processing at conflagration initial stage, can not carry out effectual control to the further development of conflagration, so need develop a multi-functional linkage extinguishing device, can be according to the conflagration type, the corresponding fire extinguishing agent of combination carries out the pertinence conflagration and puts out a fire and save, and the device possesses mobility strong, the fire extinguishing range is wide, advantages such as injection time is long, provide powerful support for drilling and repairing well site fire control safety control.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fire extinguishing and prying-resistant linkage fire extinguishing system and a working principle thereof.
The technical scheme of the invention is realized as follows:
fire extinguishing, gas pick-proof dress linkage fire extinguishing system, including compressor, explosion-proof box, gas storage device, oxygen mask integration and portable device of arranging, wherein the oxygen mask integration includes a plurality of air quick connector and oxygen mask, portable device of arranging includes a plurality of shallow of arranging, arranges that the shallow includes foam cylinder, clean water jar and the gas cylinder that set up on shallow and the shallow.
The compressor, the explosion-proof box and the gas storage device are connected in sequence through a gas transmission pipeline.
The gas storage device is 2-5 gas storage tanks connected in parallel, the gas storage device is respectively connected with a manifold and an oxygen mask integrated pipeline after passing through a pressure reducing device, and the manifold is connected with a pipeline of the arrangement trolley.
The collecting pipe is divided into three branch pipelines to be connected with the arrangement cart, the first branch pipeline is connected with the foam tank, the terminal is connected with the dry and wet foam nozzle, the second branch pipeline is connected with a mixing pipeline of the foam tank and the clean water tank, the terminal is connected with the positive pressure type foam nozzle, the third branch pipeline is connected with the clean water tank, and the terminal is connected with the high-pressure fine water mist nozzle.
And a mixer is arranged at the mixing pipeline of the foam tank and the clean water tank.
The gas cylinder can be integrated with an oxygen mask, and control valves are arranged on pipelines among the devices.
According to the working principle of the fire-extinguishing and gas-preventing installation linkage fire extinguishing system, air enters the air storage device after passing through the compressor and the explosion-proof box, is subjected to pressure reduction treatment through the pressure reduction valve bank and then is divided into two branches, one branch is directly connected with the oxygen mask in an integrated mode, the other branch is connected with the movable arrangement device, and the movable arrangement device can be provided with a plurality of branches according to the actual fire condition.
The pressure of the compressed air before the air storage device is 30-35Mpa, and the pressure of the compressed air after the air storage device is 0.7-0.8 Mpa.
The pipeline connected with the arrangement cart in the movable arrangement device can realize three injection effects, and a first pipeline which is led out from the manifold is mixed with the foam tank to form dry and wet foam which is sprayed out by a dry and wet foam spray head; the second branch pipeline which is led out from the manifold is connected with a mixer of the foam tank and the clean water tank to form positive pressure foam, the positive pressure foam is sprayed out through a positive pressure foam nozzle, and the third branch pipeline which is led out from the manifold is connected with the clean water tank to form high pressure fine water mist which is sprayed out through a high pressure fine water mist nozzle.
The invention has the following beneficial effects:
1. the invention provides a multifunctional, high-efficiency and good-comprehensiveness fire extinguishing device, which is characterized in that different fire extinguishing agents are combined by mixing and matching gas drive and the fire extinguishing agent according to different fire types on site, so as to carry out targeted fire extinguishing treatment, improve the spraying distance of a fire extinguisher and the fire extinguishing efficiency, extinguish fire by utilizing a fire extinguishing mechanism of the suffocation effect of a water mist fire extinguishing agent, vaporization cooling and radiation heat blocking effect, and have the advantages of low water consumption, high fire extinguishing speed, long fire extinguishing duration, no environmental pollution, no conductivity, high volatilization, no residue, small damage to a protected object and the like, and also have the dual advantages of gas fire extinguishing and water fire extinguishing. The fire extinguishing agent is suitable for A, B, C class combustible substance fires, E class electrified precise instrument fires and F class common edible oil fires.
2. The fire extinguishing and gas prying-resistant linkage fire extinguishing system can form fire extinguishing combinations such as dry foam, positive pressure foam and high-pressure water mist through high-pressure gas and different fire extinguishing agents according to different fire characteristics, and achieves a high-efficiency fire extinguishing effect. The multifunctional linkage fire extinguishing and gas preventing module can form a plurality of fire extinguishing materials such as dry foam, positive pressure foam, high-pressure water mist and the like, performs targeted fire extinguishing treatment aiming at different fire characteristics, and can effectively extinguish oil and gas fires, particularly the fire extinguishing function of A-type substances with the flash point lower than 28 ℃; when toxic and harmful gas exists on site, the module can also provide continuous and stable gas protection for operation and rescue workers by utilizing a high-pressure gas supply system and facilities such as a long-tube respirator rapid mask through pressure reduction, so that self rescue, mutual rescue and the like are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present application.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood 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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Fire extinguishing and gas preventing prying-mounting linkage fire extinguishing system comprises a compressor 1, an explosion-proof box 2, a gas storage device 3, an oxygen mask assembly 4 and a movable arrangement device, wherein the oxygen mask assembly 4 comprises a plurality of air quick connectors 41 and an oxygen mask 42, the movable arrangement device comprises a plurality of arrangement trolleys 6, and the arrangement trolleys 6 comprise trolleys and foam tanks 61, clean water tanks 62 and gas bottles 63 arranged on the trolleys.
The invention provides a multifunctional, high-efficiency and good-comprehensiveness fire extinguishing device, which is characterized in that different fire extinguishing agents are combined by mixing and matching gas drive and the fire extinguishing agent according to different fire types on site, so as to carry out targeted fire extinguishing treatment, improve the spraying distance of a fire extinguisher and the fire extinguishing efficiency, extinguish fire by utilizing a fire extinguishing mechanism of the suffocation effect of a water mist fire extinguishing agent, vaporization cooling and radiation heat blocking effect, and have the advantages of low water consumption, high fire extinguishing speed, long fire extinguishing duration, no environmental pollution, no conductivity, high volatilization, no residue, small damage to a protected object and the like, and also have the dual advantages of gas fire extinguishing and water fire extinguishing. The fire extinguishing agent is suitable for A, B, C class combustible substance fires, E class electrified precise instrument fires and F class common edible oil fires.
The fire extinguishing and gas prying-resistant linkage fire extinguishing system can form fire extinguishing combinations such as dry foam, positive pressure foam and high-pressure water mist through high-pressure gas and different fire extinguishing agents according to different fire characteristics, and achieves a high-efficiency fire extinguishing effect. The multifunctional linkage fire extinguishing and gas preventing module can form a plurality of fire extinguishing materials such as dry foam, positive pressure foam, high-pressure water mist and the like, performs targeted fire extinguishing treatment aiming at different fire characteristics, and can effectively extinguish oil and gas fires, particularly the fire extinguishing function of A-type substances with the flash point lower than 28 ℃; when toxic and harmful gas exists on site, the module can also provide continuous and stable gas protection for operation and rescue workers by utilizing a high-pressure gas supply system and facilities such as a long-tube respirator rapid mask through pressure reduction, so that self rescue, mutual rescue and the like are realized.
Preferably, the compressor 1, the explosion-proof box 2 and the gas storage device 3 are connected in sequence through a gas transmission pipeline.
Preferably, the gas storage devices 3 are 2-5 gas storage tanks connected in parallel, the gas storage devices 3 are respectively connected with the manifold 5 and the oxygen mask integrated 4 pipeline after passing through the pressure reduction device, and the manifold 5 is connected with the arrangement cart 6 pipeline.
Preferably, the manifold 5 is divided into three branch pipelines to be connected with the arrangement cart 6, a first branch pipeline is connected with the foam tank 61, the terminal is connected with the dry and wet foam nozzle 8, a second branch pipeline is connected with a mixing pipeline of the foam tank 61 and the clean water tank 62, the terminal is connected with the positive pressure type foam nozzle 9, a third branch pipeline is connected with the clean water tank 62, and the terminal is connected with the high-pressure water mist nozzle 10.
Preferably, a mixer 7 is arranged at the mixing pipeline of the foam tank 61 and the clean water tank 62.
Preferably, the gas cylinder 63 can be further connected with the oxygen mask assembly 4, and control valves are arranged on pipelines between the devices.
According to the working principle of the fire-extinguishing and gas-preventing installation linkage fire extinguishing system, air enters the air storage device 3 after passing through the compressor 1 and the explosion-proof box 2, is subjected to pressure reduction treatment through the pressure reduction valve bank and then is divided into two branches, one branch is directly connected with the oxygen mask assembly 4, the other branch is connected with the movable arrangement device, and the movable arrangement device can be provided with a plurality of branches according to the actual fire condition.
The pressure of the compressed air before the air storage device is 30-35Mpa, and the pressure of the compressed air after the air storage device is 0.7-0.8 Mpa.
The pipeline connected with the arrangement cart 6 in the movable arrangement device can realize three injection effects, and a first pipeline which is led out from the manifold is mixed with the foam tank to form dry and wet foam which is sprayed out by a dry and wet foam spray head 8; the second branch pipeline which is led out from the collecting pipe is connected with the mixer 7 of the foam tank 61 and the clean water tank 62 to form positive pressure foam which is sprayed out through the positive pressure foam nozzle 9, and the third branch pipeline which is led out from the collecting pipe is connected with the clean water tank 62 to form high pressure water mist which is sprayed out through the high pressure water mist nozzle 10.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. Fire extinguishing and gas pick-proof linkage fire extinguishing system, its characterized in that: the device comprises a compressor (1), an explosion-proof box (2), a gas storage device (3), an oxygen mask assembly (4) and a movable arrangement device, wherein the oxygen mask assembly (4) comprises a plurality of air quick connectors (41) and oxygen masks (42), the movable arrangement device comprises a plurality of arrangement trolleys (6), and the arrangement trolleys (6) comprise trolleys and foam tanks (61), clean water tanks (62) and gas cylinders (63) arranged on the trolleys.
2. The fire extinguishing, gas preventing and installation linkage fire extinguishing system according to claim 1, characterized in that: the compressor (1), the explosion-proof box (2) and the gas storage device (3) are connected in sequence through a gas transmission pipeline.
3. The fire extinguishing, gas preventing and installation linkage fire extinguishing system according to claim 2, characterized in that: the gas storage device (3) is 2-5 gas storage tanks connected in parallel, the gas storage device (3) is respectively connected with the manifold (5) and the oxygen mask assembly (4) through pipelines after passing through the pressure reducing device, and the manifold (5) is connected with the pipeline of the arrangement cart (6).
4. A fire extinguishing, gas preventing and installing linkage fire extinguishing system according to claim 3, characterized in that: the collecting pipe (5) is divided into three branch pipelines to be connected with the arrangement cart (6), a first branch pipeline is connected with the foam tank (61), the terminal is connected with the dry and wet foam nozzle (8), a second branch pipeline is connected with the mixed pipeline of the foam tank (61) and the clean water tank (62), the terminal is connected with the positive pressure type foam nozzle (9), a third branch pipeline is connected with the clean water tank (62), and the terminal is connected with the high-pressure fine water mist nozzle (10).
5. The fire extinguishing, gas preventing and installation linkage fire extinguishing system according to claim 4, characterized in that: and a mixer (7) is arranged at the mixing pipeline of the foam tank (61) and the clean water tank (62).
6. A fire-extinguishing, gas-preventing and fire-fighting system according to any one of claims 1 to 5, characterized in that: the gas cylinder (63) can also be connected with the oxygen mask assembly (4), and control valves are arranged on pipelines among the devices.
7. The working principle of the fire extinguishing and gas preventing installation linkage fire extinguishing system as claimed in claim 6 is characterized in that: air enters the air storage device (3) after passing through the compressor (1) and the explosion-proof box (2), is decompressed by the decompression valve bank and is divided into two branches, wherein one branch is directly connected with the oxygen mask assembly (4), the other branch is connected with the movable arrangement device, and the movable arrangement device can be provided with a plurality of branches according to the actual fire situation.
8. The working principle of the fire extinguishing and fire preventing linkage fire extinguishing system according to claim 7 is characterized in that: the pressure of the compressed air before the air storage device is 30-35Mpa, and the pressure of the compressed air after the air storage device is 0.7-0.8 Mpa.
9. The working principle of the fire extinguishing and fire preventing linkage fire extinguishing system according to claim 7 is characterized in that: the pipeline connected with the arrangement cart (6) in the movable arrangement device can realize three injection effects, and a first pipeline which is led out from the manifold (5) is mixed with the foam tank to form dry and wet foam which is sprayed out by a dry and wet foam spray head (8); the second branch pipeline which is led out from the collecting pipe (5) is connected with a mixer (7) of the foam tank (61) and the clean water tank (62) to form positive pressure type foam, the positive pressure type foam is sprayed out through a positive pressure type foam spray head (9), and the third branch pipeline which is led out from the collecting pipe (5) is connected with the clean water tank (62) to form high-pressure water mist which is sprayed out through a high-pressure water mist spray head (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011358164.3A CN112206449A (en) | 2020-11-27 | 2020-11-27 | Fire extinguishing and gas-extinguishing anti-prying linkage fire extinguishing system and working principle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011358164.3A CN112206449A (en) | 2020-11-27 | 2020-11-27 | Fire extinguishing and gas-extinguishing anti-prying linkage fire extinguishing system and working principle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112206449A true CN112206449A (en) | 2021-01-12 |
Family
ID=74068129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011358164.3A Pending CN112206449A (en) | 2020-11-27 | 2020-11-27 | Fire extinguishing and gas-extinguishing anti-prying linkage fire extinguishing system and working principle thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112206449A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020029271A (en) * | 2000-10-12 | 2002-04-18 | 김승제 | a bystreet fire truck |
| CN202961631U (en) * | 2012-11-22 | 2013-06-05 | 陕西银河消防科技装备有限公司 | Movable multi-extinguishant fire extinguishing device |
| CN203436721U (en) * | 2013-09-03 | 2014-02-19 | 北京联合力通安防设备有限公司 | Multifunctional equipment for fire rescue |
| CN205411998U (en) * | 2015-08-21 | 2016-08-03 | 葛劲松 | Positive pressure hand push foam extinguishing device |
| CN107088276A (en) * | 2017-06-12 | 2017-08-25 | 广东瑞霖特种设备制造有限公司 | A kind of box premixing compressed air foam fire-extinguishing apparatus |
-
2020
- 2020-11-27 CN CN202011358164.3A patent/CN112206449A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020029271A (en) * | 2000-10-12 | 2002-04-18 | 김승제 | a bystreet fire truck |
| CN202961631U (en) * | 2012-11-22 | 2013-06-05 | 陕西银河消防科技装备有限公司 | Movable multi-extinguishant fire extinguishing device |
| CN203436721U (en) * | 2013-09-03 | 2014-02-19 | 北京联合力通安防设备有限公司 | Multifunctional equipment for fire rescue |
| CN205411998U (en) * | 2015-08-21 | 2016-08-03 | 葛劲松 | Positive pressure hand push foam extinguishing device |
| CN107088276A (en) * | 2017-06-12 | 2017-08-25 | 广东瑞霖特种设备制造有限公司 | A kind of box premixing compressed air foam fire-extinguishing apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202961631U (en) | Movable multi-extinguishant fire extinguishing device | |
| CN101301515B (en) | Extinguishment method of fire-fighting truck with movable nitrogen making machine group and equipment thereof | |
| CN201537342U (en) | Automatic fire extinguishing system for long tunnel | |
| CN103691085A (en) | Fire extinguishing system with combined effect of clean chemical gas and fine water mist | |
| CN112206434B (en) | Multifunctional linkage fire extinguishing device and working method thereof | |
| CN201469938U (en) | Quick fire extinguishing apparatus for oiling machine | |
| CN207919942U (en) | A kind of teaching building fire-fighting guardrail | |
| CN213852884U (en) | Multifunctional fire-extinguishing and gas-extinguishing prying-resistant linkage fire extinguishing device | |
| CN201120066Y (en) | Heavy pressure water jet cutting and fire extinguisher | |
| CN203710587U (en) | Fire extinguishing system with combined function of cleaning chemical gas and water mist | |
| CN112206449A (en) | Fire extinguishing and gas-extinguishing anti-prying linkage fire extinguishing system and working principle thereof | |
| CN103184882B (en) | Mineral fireless locomotive | |
| CN104524715A (en) | Automatic fire extinguishing system of bus | |
| CN210873869U (en) | Three-head water distributor for fire fighting | |
| CN204815471U (en) | Ammonia leaks emergent fire engine of dealing with | |
| CN203329245U (en) | Electronic linkage type nitrogen energy fire extinguishing device | |
| CN213760289U (en) | Multifunctional linkage fire extinguishing device | |
| CN204428654U (en) | bus automatic fire extinguishing system | |
| CN211798424U (en) | Novel gas fire engine | |
| CN206846305U (en) | Mobile emergency supplies nitrogen device | |
| CN209347977U (en) | A kind of track fire fighting truck | |
| CN208145269U (en) | Environmentally protective pneumatic fire-extinguishing system | |
| CN206867532U (en) | A kind of box premixing compressed air foam fire-extinguishing apparatus | |
| CN211690567U (en) | Novel fire control water supply equipment | |
| CN220046895U (en) | New energy automobile chassis cooling extinguishing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |