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CN103357131A - Compound portable fire extinguisher - Google Patents

Compound portable fire extinguisher Download PDF

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Publication number
CN103357131A
CN103357131A CN2013103058372A CN201310305837A CN103357131A CN 103357131 A CN103357131 A CN 103357131A CN 2013103058372 A CN2013103058372 A CN 2013103058372A CN 201310305837 A CN201310305837 A CN 201310305837A CN 103357131 A CN103357131 A CN 103357131A
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China
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extinguishing chemical
cavity
storage tank
head assembly
fire
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CN2013103058372A
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CN103357131B (en
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倪小敏
张少刚
赵媚
王喜世
张和平
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University of Science and Technology of China USTC
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University of Science and Technology of China USTC
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  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a compound portable fire extinguisher which is characterized in that: a fire extinguishing agent storage tank is arranged, and a tank port of the fire extinguishing agent storage tank is sealedly connected with a machine head assembly, an internal cavity of the fire extinguishing agent storage tank is provided with a separator plate connected with the bottom of the storage tank and the side surface of the storage tank, the internal cavity of the fire extinguishing agent storage tank is separated into a first cavity and a second cavity by the separator plate, and the upper parts of the first cavity and the second cavity are communicated with each other; a fire extinguishing agent straw system is arranged to form an inverted Y-shaped structure, a mixing cavity is arranged on the upper part, and the bottom of the mixing cavity is in parallel connection with a first fire extinguishing agent straw and a second fire extinguishing agent straw, an end port of the top of the mixing cavity is connected with a fire extinguishing agent inlet connecting pipe of the machine head assembly, and the first fire extinguishing agent straw and the second fire extinguishing agent straw are respectively inserted into the first cavity and the second cavity; the first cavity is used for being filled with 2-bromo-3,3,3-trifluoropropene or perfluorinated hexanone, and the second cavity is filled with water or water containing an inorganic salt additive. The compound portable fire extinguisher is the clean and efficient compound portable fire extinguisher with combination of clean gas and fine water mist.

Description

A kind of compound Portable extinguisher
Technical field
The invention belongs to the Portable extinguisher technical field, be specifically related to be applicable to the Portable extinguisher of clean gas and thin water smoke coupling.
Background technology
Along with eliminating gradually of halon fire agent, various Kazakhstan dragon substitutes the extinguishing chemical product and continues to bring out.Than powder extinguishing agent and fire foam, clean gas and thin water smoke are considered to the Halon's succedaneum of two kinds of cleanings, has non-conductive, the rear noresidue of fire extinguishing, to the advantage such as the instrument and equipment of fire-extinguishing location is pollution-free, be widely used in the fire protection in the multiple places such as instrument and equipment chamber, computer floor, book and file chamber, aircraft or warship cabin.Clean gas such as perfluor hexanone and bromine fluorine propylene etc. mainly are that fire-fighting efficiency is high with the chemical mode fire extinguishing, but owing in the molecule fluorine element is arranged, can produce poisonous gas hydrogen fluoride during fire extinguishing.Because clean gas volatilizees easily, cooling and covering effect are poor, and be relatively poor for solid deep-seated fire extinguishing ability on the other hand.Than inhibition gas, fine mist fire-fighting agent fire extinguishing the time can not produce noxious material, but the fine mist fire-fighting agent mainly with cooling, dilute and the physical mode of action fire extinguishing such as suffocate, fire extinguishing effectiveness is lower than clean inhibition gas.
Existing Kazakhstan dragon substitutes in the extinguishing chemical product, is liquid clean chemical gas extinguishing chemical under the normal temperature, and such as perfluor hexanone and bromine fluorine propylene etc., boiling point is below 50 degree Celsius, and the character of water is similar, is easy to store and transport, and is applicable to Portable extinguisher.But because the deficiency that clean gas and fine mist fire-fighting agent exist separately, limited the scope of application of this two classes Portable extinguisher.
Summary of the invention
The objective of the invention is for avoiding the existing weak point of above-mentioned prior art, the compound Portable extinguisher of the efficient clean gas of a kind of cleaning and thin water smoke coupling is provided.
The present invention is that the technical solution problem adopts following technical scheme:
The version of the compound Portable extinguisher of the present invention:
The extinguishing chemical storage tank is set, be connected with the device head assembly with the Jar opening sealer of extinguishing chemical storage tank, be connected with the extinguishing chemical sucker system with extinguishing chemical entrance sleeve on the device head assembly, be connected with the extinguishing chemical jet hose with extinguishing chemical discharge connection on the device head assembly, be connected with shower nozzle with jet hose; In described device head assembly, be provided with the extinguishing chemical passage that is communicated with between described extinguishing chemical entrance sleeve and extinguishing chemical discharge connection;
In described device head assembly, be provided with the depression bar that can press, the upper end of described depression bar is fixed on the middle part of pressure handle, the rotating shaft end of pressure handle links to each other with handle on being fixed on the device head assembly by spiral pin, the lower end of depression bar is fixedly connected with diaphragm seal, described diaphragm seal is arranged in the extinguishing chemical passage, stage clip is arranged between diaphragm seal and the extinguishing chemical entrance sleeve so that when pressure handle is releasing orientation by diaphragm seal with the extinguishing chemical channel enclosed, and when pressure handle is depressed state, make the extinguishing chemical passage open-minded by diaphragm seal;
The design feature of the compound Portable extinguisher of the present invention is: be provided with the dividing plate that is connected with storage tank bottom surface and storage tank side in the inner chamber of described extinguishing chemical storage tank, described dividing plate is separated into the first cavity and the second cavity that top communicates with the inner chamber of extinguishing chemical storage tank; The setting of described extinguishing chemical sucker system is inversion " Y " shape structure, in described inversion " Y " structure, to place top with hybrid chamber, bottom at described hybrid chamber is connected with respectively the first extinguishing chemical suction pipe and the second extinguishing chemical suction pipe with form arranged side by side, the top port of described hybrid chamber links to each other with extinguishing chemical entrance sleeve on the device head assembly, and described the first extinguishing chemical suction pipe and the second extinguishing chemical suction pipe are inserted in respectively in the first cavity and the second cavity; Described the first cavity is used for filling 2-bromo-3,3,3-trifluoro propene or perfluor hexanone, described the second cavity water-filling or contain the water of inorganic salts additive; And in described extinguishing chemical storage tank, be filled with the nitrogen of 1.0-1.2MPa.
The design feature of the compound Portable extinguisher of the present invention also is:
Described shower nozzle is atomizer, and described atomizer is one or more.
Between described jet hose and shower nozzle, be removable being threaded.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is filled with respectively in the extinguishing chemical storage tank and is liquid clean chemical gas extinguishing chemical under water and the normal temperature, spray both mixtures in the mode of atomizing, can fully utilize the inhibition effect of clean gas and the physics fire extinguishing function of thin water smoke, realize both mutual supplement with each other's advantages, improve fire extinguishing effectiveness and the scope of application of extinguishing chemical, and reduce the concentration of sour gas product.
2, bromine fluorine propylene used in the present invention or perfluor hexanone are new and effective clean gas extinguishing chemicals, and ozone depletion value and greenhouse effects value all are zero, and the atmosphere survival life-span is short, environmentally friendly; Be liquid at normal temperatures, volatilizing rapidly after spraying becomes gas, can not damage sensitive electronic components owing to temperature decrease; To instrument and equipment not damaged almost.
3, clean gas extinguishing chemical bromine fluorine propylene used in the present invention or perfluor hexanone are mainly to interrupt the chemical action fire extinguishing of pyric chain, fire-fighting efficiency is high, after thin water smoke coupling, can greatly improve on the one hand the fire extinguishing effectiveness of thin water smoke, thin water smoke also can strengthen the cooling effect of inhibition gas on the other hand, improve clean gas to the extinguishing ability of solid fire, and the sour gas that produces when absorbing the chemical gas fire extinguishing, reduce the malicious corrosivity of fire extinguishing product, thereby enlarge the scope of application of extinguishing chemical, reduce use cost.Use Portable cleaning gas of the present invention-thin water smoke coupling fire extinguisher, can extinguish fast polytype fire such as category-A solid fire, category-B liquid fire, C class gas fire and K class edible oil fire, be widely used in the fire protection in the multiple places such as computer floor, precision instrument and equipment chamber, book and file shop, aircraft Engine Room.
4, common gas extinguishing agent must carry out pressurized liquefied just can being filled in the fire extinguisher tank later because be gas at normal temperatures, and this just needs the pressurized liquefied equipment of specialty carry out pressurized liquefied to gas extinguishing agent; Therefore Portable extinguisher of the present invention can directly be filled in the fire extinguisher because the extinguishing chemical that adopts all is liquid at normal temperatures, does not need special charging (feeding) equipment; Fire extinguisher adopts the inflated with nitrogen pressurization, and needed nitrogen pressure generally is not higher than 1.2MPa, adopts common common nitrogen cylinder just can carry out easily on-the-spot direct repeat and feeds in raw material, and has strengthened the portability of fire extinguisher.
5, the present invention adopts between jet hose and shower nozzle and is removably connected, and therefore can carry out fast assembling-disassembling to shower nozzle and jet hose by simple manual mode, makes things convenient for the on-the-spot direct repeat of extinguishing chemical to feed in raw material with pressurising, be conducive to re-using of fire extinguisher; Fire extinguisher can manually clean each junction completely knocked down after finishing using, and is conducive to protect fire extinguisher to be corroded less, prolongs its service life.
6, the present invention is simple in structure, and manufacture difficulty is little, the advantage that cost is low.
Description of drawings
Fig. 1 is structural representation of the present invention;
The specific embodiment
Referring to Fig. 1, the version of compound Portable extinguisher is in the present embodiment:
Extinguishing chemical storage tank 1 is set, be connected with device head assembly 2 with the Jar opening sealer of extinguishing chemical storage tank 1, be connected with extinguishing chemical sucker system 3 with extinguishing chemical entrance sleeve 21 on the device head assembly 2, be connected with extinguishing chemical jet hose 4 with extinguishing chemical discharge connection 22 on the device head assembly 2, be connected with shower nozzle 5 with jet hose 4; In device head assembly 2, be provided with the extinguishing chemical passage 23 that is communicated with between extinguishing chemical entrance sleeve 21 and extinguishing chemical discharge connection 22.
In device head assembly 2, be provided with the depression bar 24 that can press, the upper end of depression bar 24 is fixed on the middle part of pressure handle 25, the rotating shaft end of pressure handle 25 links to each other with handle 27 on being fixed on device head assembly 2 by spiral pin 26, the lower end of depression bar 24 is fixedly connected with diaphragm seal 28, diaphragm seal 28 is arranged in extinguishing chemical passage 23, stage clip 29 is arranged between diaphragm seal 28 and the extinguishing chemical entrance sleeve 21, so that when pressure handle 25 is releasing orientation, by diaphragm seal 28 extinguishing chemical passage 23 is sealed, and when pressure handle 25 is depressed state, make extinguishing chemical passage 23 open-minded by diaphragm seal 28.
The design feature of compound Portable extinguisher is in the present embodiment: be provided with the dividing plate 11 that is connected with storage tank bottom surface and storage tank side in the inner chamber of extinguishing chemical storage tank 1, dividing plate 11 is separated into the first cavity 12 and the second cavity 13 that top communicates with the inner chamber of extinguishing chemical storage tank 1; Extinguishing chemical sucker system 3 arranges and is inversion " Y " shape structure, in being inverted " Y " structure, to place top with hybrid chamber 31, bottom at hybrid chamber 31 is connected with respectively the first extinguishing chemical suction pipe 32 and the second extinguishing chemical suction pipe 33 with form arranged side by side, the top port of hybrid chamber 31 links to each other with extinguishing chemical entrance sleeve 22 on the device head assembly, and the first extinguishing chemical suction pipe 32 and the second extinguishing chemical suction pipe 33 are inserted in respectively in the first cavity 12 and the second cavity 13; The first cavity 12 is used for filling 2-bromo-3,3,3-trifluoro propene or perfluor hexanone, and the second cavity 13 water-fillings, and fill the nitrogen of 1.0-1.2MPa.
In addition, shower nozzle 5 adopts atomizer, at atomizer some atomizers is housed; Between jet hose 4 and shower nozzle 5, be removable being threaded.
Before the use, in two cavitys of extinguishing chemical storage tank 1, fill respectively extinguishing chemical, and fill the nitrogen that absolute pressure is 1.1-2.2MPa; Gas extinguishing agent in the present embodiment Portable extinguisher preferably fills 2-bromo-3,3,3-trifluoro propene and perfluor hexanone, and also can fill under other normal temperature is liquid gas extinguishing agent; Water-based extinguishing agent can fill pure water or contain the water of inorganic salts additive; For the first cavity 12 and the second not requirement of volumetric ratio of cavity 13, implementation can be set to equal volume.
The ratio that is not more than 80% tank volume in filling weight adds two of extinguishing chemical storage tank with extinguishing chemical and cuts apart in the cavity, then with two lower port of extinguishing chemical hybrid chamber 31 be connected with the second extinguishing chemical suction pipe 33 with the first extinguishing chemical suction pipe 32 respectively, and the first extinguishing chemical suction pipe suction pipe 32 and the second extinguishing chemical suction pipe 33 be inserted in respectively in first cavity (12) and the second cavity (13) of extinguishing chemical storage tank, the upper port 32 of hybrid chamber 31 is connected with extinguishing chemical entrance sleeve 21 on the device head assembly; Device head assembly 2 is connected on the extinguishing chemical storage tank 1 by sealing thread, one end of jet hose 4 is threaded connection on the extinguishing chemical discharge connection mouth 22 of device head assembly 2, the other end is connected in the outlet of high pressure nitrogen steel cylinder pressure-reducing valve, press the pressure handle 25 on the device head assembly, open the steel cylinder pressure-reducing valve, inflated with nitrogen is forced into 1.2 predetermined MPa; Then unclamp pressure handle, shower nozzle 5 is connected on the jet hose 4 again, fire extinguisher is namely assembled complete.
During use, mention handle 27 on the other hand, another hand is picked up shower nozzle 5, aims at the flame root, press pressure handle 24, depression bar 24 under the pressure handle is subject to the downward force effect with diaphragm seal 28 downward compression press springs 29 and extinguishing chemical exit passageway 23 is opened, and the extinguishing chemical in the storage tank passes through first jet hose 4 under the effect of the pressurized nitrogen that fills in advance, outwards spray by shower nozzle 5, when unclamping pressure handle, the resilient pressure of stage clip 29 makes diaphragm seal 28 with 23 sealings of extinguishing chemical exit passageway, and injection stops.
After extinguishing chemical has sprayed, first with the whole emptyings of fire extinguisher internal pressure, again shower nozzle is unloaded from jet hose, device head assembly 2 is backed out from extinguishing chemical storage tank 1, after above-mentioned steps again reinforced pressurising, again shower nozzle 5 is connected on the jet hose 4, namely reinforcedly fills completely, can again come into operation.
2-bromo-3,3,3-trifluoro propene and perfluor hexanone extinguishing chemical and water extinguishing chemical are liquid at normal temperatures, can directly be filled in the fire extinguisher, do not need special charging (feeding) equipment, and be easy to use, can feed in raw material by on-the-spot direct repeat, strengthened the portability of fire extinguisher.
Operating position:
Experiment one: fill the 2-bromo-3,3 of 0.8 L, the water of 3-trifluoro propene and 1.2 L is used for putting out a fire to save life and property the gasoline pool fire:
Be under the environmental condition of 25 ° of C in room temperature, with the 2-bromo-3,3 of 0.8 L, it is that two of fire extinguisher storage tank of 3.0 L are cut apart in the cavity that the water of 3-trifluoro propene and 1.0 L is filled to respectively volume, adopts nitrogen to be pressurized to 1.2 MPa; Be the water that adds 2.7 L in the circular food tray of 0.57 m at diameter, add the gasoline of 5.3 L again, pre-burning used fire extinguisher of the present invention that the food tray fire is sprayed after 30 seconds, and attack time is 4 seconds.
The water of experiment two, the perfluor hexanone that fills 0.8 L and 1.0 L is fiery for the heptane pond of putting out a fire to save life and property:
Be under the environmental condition of 20 ° of C in room temperature, it is that two of Portable extinguisher tank of 3.0 L are cut apart in the cavity that 0.8 L perfluor hexanone and 1.0 L water are filled to respectively volume, adopts nitrogen to be pressurized to 1.2 MPa.Be the water that adds 2.7 L in the circular food tray of 0.57 m at diameter, add the gasoline of 5.3 L again, pre-burning used fire extinguisher of the present invention that the food tray fire is sprayed after 30 seconds, and attack time is 5 seconds.
Experiment three, fill the 2-bromo-3,3 of 2.8 L, the water of 3-trifluoro propene and 3.0 L is used for putting out a fire to save life and property the grillage fire:
Be under the environmental condition of 15 ° of C in room temperature, with the 2-bromo-3,3 of 2.8 L, it is that two of fire extinguisher tank of 6.0 L are cut apart in the cavity that 3-trifluoro propene and 3.0 L water are filled to respectively volume, adopts nitrogen to be pressurized to 1.0 MPa.Be the China fir grillage fire of 1A with the gasoline rank of igniting, be 5 minutes ignitor firing time, then uses fire extinguisher of the present invention that the grillage fire is sprayed, and attack time is 8 seconds, without the resume combustion phenomenon.
Experiment four, fill the 2-bromo-3,3 of 0.9 L, the mass percent that contains of 3-trifluoro propene and 1.2 L is the water of 10% the potassium oxalate gasoline mist of oil fire that is used for putting out a fire to save life and property:
Under the environmental condition of 10 ° of C of room temperature, with the 2-bromo-3,3 of 0.9 L, 3-trifluoro propene and 1.2 L contain the water that mass percent is 10% potassium oxalate, two of Portable extinguisher tank that are filled to respectively volume and are 3.0 L are cut apart in the cavity, adopt nitrogen to be pressurized to 1.0 MPa.Be the gasoline mist of oil fire of 200kW with alcohol pilot flame power, pre-burning was sprayed from oblique upper fire extinguisher of the present invention after 20 seconds to the mist of oil fire, and attack time is 3 seconds, without the resume combustion phenomenon.

Claims (3)

1. compound Portable extinguisher is characterized in that:
Extinguishing chemical storage tank (1) is set, be connected with device head assembly (2) with the Jar opening sealer of extinguishing chemical storage tank (1), be connected with extinguishing chemical sucker system (3) with the upper extinguishing chemical entrance sleeve (21) of device head assembly (2), be connected with extinguishing chemical jet hose (4) with the upper extinguishing chemical discharge connection (22) of device head assembly (2), be connected with shower nozzle (5) with jet hose (4); In described device head assembly (2), be provided with the extinguishing chemical passage (23) that is communicated with between described extinguishing chemical entrance sleeve (21) and extinguishing chemical discharge connection (22);
In described device head assembly (2), be provided with the depression bar (24) that can press, the upper end of described depression bar (24) is fixed on the middle part of pressure handle (25), the rotating shaft end of pressure handle (25) links to each other with handle (27) on being fixed on device head assembly (2) by spiral pin (26), the lower end of depression bar (24) is fixedly connected with diaphragm seal (28), described diaphragm seal (28) is arranged in extinguishing chemical passage (23), stage clip (29) is arranged between diaphragm seal (28) and the extinguishing chemical entrance sleeve (21), so that by diaphragm seal (28) extinguishing chemical passage (23) is sealed when being releasing orientation at pressure handle (25), and make extinguishing chemical passage (23) open-minded by diaphragm seal (28) at pressure handle (25) when being depressed state;
It is characterized in that: be provided with the dividing plate (11) that is connected with storage tank bottom surface and storage tank side in the inner chamber of described extinguishing chemical storage tank (1), described dividing plate (11) is separated into the first cavity (12) and the second cavity (13) that top communicates with the inner chamber of extinguishing chemical storage tank (1); Described extinguishing chemical sucker system (3) setting is inversion " Y " shape structure, in described inversion " Y " structure, to place top with hybrid chamber (31), bottom at described hybrid chamber (31) is connected with respectively the first extinguishing chemical suction pipe (32) and the second extinguishing chemical suction pipe (33) with form arranged side by side, the top port of described hybrid chamber (31) links to each other with extinguishing chemical entrance sleeve (22) on the device head assembly, and described the first extinguishing chemical suction pipe (32) and the second extinguishing chemical suction pipe (33) are inserted in respectively in the first cavity (12) and the second cavity (13); Described the first cavity (12) is used for filling 2-bromo-3,3,3-trifluoro propene or perfluor hexanone, described the second cavity (13) water-filling or contain the water of inorganic salts additive; And in described extinguishing chemical storage tank (1), be filled with the nitrogen of 1.0-1.2MPa.
2. compound Portable extinguisher according to claim 1, it is characterized in that: described shower nozzle (5) is atomizer, and some atomizers are housed on the described atomizer.
3. compound Portable extinguisher according to claim 1 and 2 is characterized in that being removable being threaded between described jet hose (4) and shower nozzle (5).
CN201310305837.2A 2013-07-19 2013-07-19 A kind of compound portable fire extinguisher Active CN103357131B (en)

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Cited By (12)

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CN103691085A (en) * 2013-12-17 2014-04-02 中国科学技术大学 Fire extinguishing system with combined effect of clean chemical gas and fine water mist
CN105148426A (en) * 2015-10-22 2015-12-16 程信羲 High-altitude electrical equipment fire extinguisher
CN105597253A (en) * 2016-03-09 2016-05-25 王晓勇 Energy storage type high-pressure spray extinguisher
CN105980016A (en) * 2013-12-13 2016-09-28 欧洲消防车和消防设备制造商委员会 Additive module for fire extinguisher and fire extinguisher provided with such a module
CN106730509A (en) * 2016-12-16 2017-05-31 国网湖南省电力公司 Portable constant pressure water mists gas two sprays fire extinguisher
CN107623147A (en) * 2017-09-26 2018-01-23 深圳市曼晶创业投资咨询企业(有限合伙) The self-extinguishing of power cells for new energy vehicles bag and the device and its application method of emergent cooling
CN109432644A (en) * 2018-10-17 2019-03-08 浙江鑫龙消防科技有限公司 A kind of Efficient safe water base fire extinguishing device
CN111184961A (en) * 2020-02-19 2020-05-22 中国民用航空飞行学院 Hand-held type low pressure double-fluid thin water smoke lithium cell fire extinguisher
CN111420336A (en) * 2020-03-03 2020-07-17 北京理工大学 Lithium ion battery thermal runaway explosion safety prevention and control method and device
CN112675456A (en) * 2020-12-29 2021-04-20 无锡润年自动化科技有限公司 High power foam fire extinguisher
CN113533419A (en) * 2021-07-09 2021-10-22 中国科学技术大学 Preparation, filling and discharging integrated device for gas-solid composite fire extinguishing agent
CN115888002A (en) * 2022-10-25 2023-04-04 西安韩光电气有限公司 Novel clean and efficient gas extinguishing agent and preparation method thereof

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CN110013638B (en) * 2019-04-22 2021-10-12 北京航天神禾防务技术有限公司 Fire extinguishing system based on perfluorohexanone fire-fighting agent

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105980016B (en) * 2013-12-13 2018-12-14 欧洲消防车和消防设备制造商委员会 Additive module for fire extinguisher and fire extinguisher provided with such a module
CN105980016A (en) * 2013-12-13 2016-09-28 欧洲消防车和消防设备制造商委员会 Additive module for fire extinguisher and fire extinguisher provided with such a module
CN103691085A (en) * 2013-12-17 2014-04-02 中国科学技术大学 Fire extinguishing system with combined effect of clean chemical gas and fine water mist
CN105148426A (en) * 2015-10-22 2015-12-16 程信羲 High-altitude electrical equipment fire extinguisher
CN105597253A (en) * 2016-03-09 2016-05-25 王晓勇 Energy storage type high-pressure spray extinguisher
CN106730509A (en) * 2016-12-16 2017-05-31 国网湖南省电力公司 Portable constant pressure water mists gas two sprays fire extinguisher
CN107623147A (en) * 2017-09-26 2018-01-23 深圳市曼晶创业投资咨询企业(有限合伙) The self-extinguishing of power cells for new energy vehicles bag and the device and its application method of emergent cooling
CN109432644A (en) * 2018-10-17 2019-03-08 浙江鑫龙消防科技有限公司 A kind of Efficient safe water base fire extinguishing device
CN111184961A (en) * 2020-02-19 2020-05-22 中国民用航空飞行学院 Hand-held type low pressure double-fluid thin water smoke lithium cell fire extinguisher
CN111420336A (en) * 2020-03-03 2020-07-17 北京理工大学 Lithium ion battery thermal runaway explosion safety prevention and control method and device
CN112675456A (en) * 2020-12-29 2021-04-20 无锡润年自动化科技有限公司 High power foam fire extinguisher
CN113533419A (en) * 2021-07-09 2021-10-22 中国科学技术大学 Preparation, filling and discharging integrated device for gas-solid composite fire extinguishing agent
CN113533419B (en) * 2021-07-09 2022-07-15 中国科学技术大学 Preparation, filling and discharging integrated device for gas-solid composite fire extinguishing agent
CN115888002A (en) * 2022-10-25 2023-04-04 西安韩光电气有限公司 Novel clean and efficient gas extinguishing agent and preparation method thereof
CN115888002B (en) * 2022-10-25 2024-03-15 西安韩光电气有限公司 Clean and efficient gas extinguishing agent and preparation method thereof

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