CN105903141A - Fire extinguishing agent being stored in the status of mixed liquid - Google Patents
Fire extinguishing agent being stored in the status of mixed liquid Download PDFInfo
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- CN105903141A CN105903141A CN201610246817.6A CN201610246817A CN105903141A CN 105903141 A CN105903141 A CN 105903141A CN 201610246817 A CN201610246817 A CN 201610246817A CN 105903141 A CN105903141 A CN 105903141A
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- liquid
- fire extinguishing
- pressure
- extinguishing
- extinguishing agent
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
- A62C13/64—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container the extinguishing material being released by means of a valve
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- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a fire extinguishing agent being stored in the status of a mixed liquid. The fire extinguishing agent is composed of, by volume, 2-10 parts of gaseous inert gas or gaseous nitrogen, 50-85 parts of liquid heptafluoropropane and 15-45 parts of dry ice. The fire extinguishing agent has both physical and chemical fire extinguishing advantages of the two fire extinguishing agents and considers both the physical and chemical fire extinguishing principles. Meanwhile, according to the characters of the CO2, the fire extinguishing agent is stored under a high pressure only when being stored, wherein the CO2 is subjected to phase change into the dry ice, the density being approximate to liquid and the viscosity being approximate to gas. The mixed fire extinguishing agent has strong physical and chemical fire extinguishing performances. Meanwhile, the dry ice has strong physical temperature decreasing capability, a problem of secondary reburning due to increased temperature can be solved. The inert gas, as an assistant gas, is not changed in storage status when the pressure is changed at the temperature in nature. A problem of ice blockage due to the CO2 during an ejection process is prevented.
Description
Technical field
The present invention relates to a kind of state that stores is to mix the extinguishing chemical of liquid.
Background technology
Along with the fast development of national economy and improving constantly of people's livelihood safety consciousness, fire-fighting fire-extinguishing equipment has been widely used,
Also fire fighting device and extinguishing device it is equipped with in numerous occasions.
Fire extinguisher used in fire-fighting mainly has fire foam, carbon tetrachloride extinguishing chemical, powder extinguishing agent, seven fluorine at present
Propane extinguishing chemical, carbon dioxide extinguishing agent etc., their scope of application is the widest, has some limitations.
Traditional combustion theory is thought, combustion process is combustible, oxidizer and the interaction process of temperature three elements.Will be to putting out
Fire extinguishing flame, it is necessary to remove in three elements, i.e. remove combustible, starvation or cooling.Nearest research is thought, removes
Outside above three fundamental, combustion process is with the four elements-free radical, and this is tetrahedron Theory of Combustion or free radical combustion
Burn theory.
This theory is thought, the existence free radical lock reaction of combustion process, owing to this response speed is exceedingly fast, thus controls to catch fire
Flame growth rate.In combustion, having multiple free radical and occur, the main body of different its free radicals of fire type can occur
Change.And the extinguishing mechanism of existing extinguishing chemical is mainly by eliminating what active combustion carrier completed, i.e. block in flame
Chain propagation reaction.
Fire situation, often because of for the first time fire extinguishing after, comburant and oxidizer yet suffer from, temperature after the once time rises,
Result in the phenomenon of fire resume combustion, it is therefore desirable to a kind of preventing causes the extinguishing chemical of fire secondary resume combustion and fire extinguishing to fill because temperature rises
Put.
Along with the various extinguishing chemical of development of science and technology is also developed accordingly, in order to the needs of the most different fire types.This
The purpose of invention, is to provide a kind of range wide, the fire extinguishing type of suitable emerging industry fire characteristics, possesses fire extinguishing procedure
Middle have physics, inhibition good simultaneously and prevent the extinguishing chemical of secondary resume combustion.
Summary of the invention
Present invention is primarily targeted at and providing a kind of state that stores is to mix the extinguishing chemical of liquid,
Technical scheme is as follows:
A kind of state that stores is to mix the extinguishing chemical of liquid, and by volume, it includes:
Gaseous inert gas or gaseous nitrogen 2-10 part, liquid heptafluoro-propane 50-85 part and dry ice 15-45 part, be higher than at pressure
Room temperature carbon dioxide is converted under the pressure condition of liquid and mixes.
A kind of preparation method storing the extinguishing chemical that state is mixing liquid, comprises the steps:
1), in steel cylinder, gaseous inert gas it is initially charged in steel cylinder container size according to aforesaid ratio；
2), add heptafluoro-propane extinguishing chemical in aforesaid ratio, be converted into the pressure of liquid at pressure higher than room temperature heptafluoro-propane gas
Mix under the conditions of power；
3), carbon dioxide extinguishing agent is finally filled, under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Mixing.
Heptafluoro-propane (HFC-227ea/FM200) is a kind of based on inhibition, and the clean gas having physics fire extinguishing function concurrently goes out
Fire agent；Storage area is little, and critical temperature is high, and critical pressure is low, and liquefiable at normal temperatures stores；Good gas phase electrical insulating property,
Be applicable to total flooding fire-fighting mode put out a fire to save life and property electrical fire, liquid fire or fusible solid fire, surface of solids fire, fire extinguishing before
The gas fire of source of the gas can be cut off, protect computer floor, communication machine room, changed into switchhouse, precision instrument room, Generators, oil
Storehouse, the chemistry place such as inflammable thing storehouse and Library, information bank, file store, national treasury.
Dry ice extinguishing chemical: solid carbon dioxide is commonly called as dry ice, dry ice is used for making fire-fighting fire extinguishing, can absorb big calorimetric during distillation, makees
Playing huge Physical temperature-lowering fire extinguishing function for extinguishing chemical, carbon dioxide does not the most burn and does not the most support burning simultaneously, is conventional
One of extinguishing chemical；Dry ice is applied at fire-fighting domain fewer at present.
The present invention combines the physics of above 2 kinds of extinguishing chemicals, inhibition advantage, has taken into account physics and inhibition principle, with
Time, utilize the characteristic of carbon dioxide, just store with high pressure when extinguishing chemical stores, make properties of carbon dioxide to change, shape
Becoming dry ice, its density is bordering on liquid, and viscosity is bordering on gas；The extinguishing chemical of this mixing, has possessed powerful physics, inhibition
Ability.Meanwhile, because dry ice possesses powerful Physical temperature-lowering ability, it is possible to prevent because temperature rises the secondary resume combustion phenomenon caused.
Noble gas is as auxiliary gas, and its storage state will not change storage state under natural temperature state because of pressure change,
Prevent carbon dioxide from producing the phenomenon that ice is stifled in course of injection simultaneously.
Advantages of the present invention is as follows:
1, using high pressure storage, pressure is converted into the pressure of liquid higher than room temperature carbon dioxide, makes two kinds of extinguishing chemicals be simultaneously
Liquid condition.Possesses the state of excellent Physical temperature-lowering fire extinguishing.When the mixing extinguishing chemical of high-pressure liquid discharges to fire situation,
Changed to gaseous process by liquid, transformation process absorbs substantial amounts of heat, be conducive to the temperature of conflagration area is down to flammable temperature
Under degree point.The fire extinguishing advantage of comprehensive 2 kinds of extinguishing chemicals, it is adaptable to the multiple occasion needing drastically to lower the temperature with inhibition.
2, heptafluoro-propane content 50% to 85%；Storage state is liquid；Dry ice content 45% to 15%；Because heptafluoro-propane also stores
Time also based on liquid, when fire situation, liquid gasification also possesses certain Physical temperature-lowering effect.Therefore, carbon dioxide
Ratio is fewer than heptafluoro-propane.Other gas auxiliary gas 2% to 10%, auxiliary gas is noble gas, and its storage state is at nature
Storage state will not be changed under boundary's state of temperature because of pressure change, prevent carbon dioxide from producing what ice blocked up in course of injection simultaneously
Phenomenon；Such as nitrogen.
During auxiliary gas storage, being in gaseous state, the extinguishing chemical of liquid, when extinguishing device starts, is ejected to by auxiliary in time
Fire extinguishing region.Auxiliary gas, possesses the feature that will not liquefy in subzero 50 ° of high pressure storages, contributes to the 2 of liquid kinds in time
Extinguishing chemical ejects, and prevents from occurring ice to block up phenomenon in extinguishing chemical injection line, valve etc..
3, according to fire situation, the characteristic that physics, inhibition need, carry out the adjustment of extinguishing chemical ratio.Fire temperature compares
The occasion that high or temperature easily rises, the ratio of dry ice improves.At present based on the occasion of heptafluoro-propane fire extinguishing, the ratio of dry ice
Can suitably reduce.
Detailed description of the invention
Embodiment 1
By volume, 5 parts of the nitrogen of gaseous state；Liquid heptafluoro-propane 80 parts, 20 parts of dry ice
1, in steel cylinder, it is initially charged extinguishment additive agent in proportion by steel cylinder container size, i.e. assists gas；
2, it is proportionally added into heptafluoro-propane extinguishing chemical, under the pressure condition that pressure is converted into liquid higher than room temperature heptafluoro-propane gas
Mixing；
3, finally fill carbon dioxide extinguishing agent, mixed under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Close.
Embodiment 2
By volume, 10 parts of the nitrogen of gaseous state；Liquid heptafluoro-propane 70 parts, 20 parts of dry ice
1, in steel cylinder, it is initially charged extinguishment additive agent in proportion by steel cylinder container size, i.e. assists gas；
2, it is proportionally added into heptafluoro-propane extinguishing chemical, under the pressure condition that pressure is converted into liquid higher than room temperature heptafluoro-propane gas
Mixing；
3, finally fill carbon dioxide extinguishing agent, mixed under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Close.
Embodiment 3
By volume, the argon of gaseous state 5 parts；Liquid heptafluoro-propane 80 parts, 20 parts of dry ice
1, in steel cylinder, it is initially charged extinguishment additive agent in proportion by steel cylinder container size, i.e. assists gas；
2, it is proportionally added into heptafluoro-propane extinguishing chemical, under the pressure condition that pressure is converted into liquid higher than room temperature heptafluoro-propane gas
Mixing；
3, finally fill carbon dioxide extinguishing agent, mixed under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Close.
Embodiment 4
By volume, the argon of gaseous state 2 parts；Liquid heptafluoro-propane 60 parts, 15 parts of dry ice
1, in steel cylinder, it is initially charged extinguishment additive agent in proportion by steel cylinder container size, i.e. assists gas；
2, it is proportionally added into heptafluoro-propane extinguishing chemical, under the pressure condition that pressure is converted into liquid higher than room temperature heptafluoro-propane gas
Mixing；
3, finally fill carbon dioxide extinguishing agent, mixed under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Close.
Embodiment 5
By volume, 5 parts of the nitrogen of gaseous state；Liquid heptafluoro-propane 65 parts, 30 parts of dry ice
1, in steel cylinder, it is initially charged extinguishment additive agent in proportion by steel cylinder container size, i.e. assists gas；
2, it is proportionally added into heptafluoro-propane extinguishing chemical, under the pressure condition that pressure is converted into liquid higher than room temperature heptafluoro-propane gas
Mixing；
3, finally fill carbon dioxide extinguishing agent, mixed under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Close.
The above, only present pre-ferred embodiments, therefore the scope that the present invention implements, i.e. Yi Benfa can not be limited according to this
The equivalence change that bright the scope of the claims and description are made with modify, all should still belong in the range of the present invention contains.
Claims (2)
1. one kind stores the extinguishing chemical that state is mixing liquid, it is characterised in that: by volume, it includes:
Gaseous inert gas or gaseous nitrogen 2-10 part, liquid heptafluoro-propane 50-85 part and dry ice 15-45 part, be higher than at pressure
Room temperature carbon dioxide is converted under the pressure condition of liquid and mixes.
2. the state that stores is a preparation method for the extinguishing chemical of mixing liquid, comprises the steps:
1), by steel cylinder container size, ratio according to claim 1 is initially charged gaseous inert gas in steel cylinder；
2), the ratio according to claim 1 adds heptafluoro-propane extinguishing chemical, is converted into liquid at pressure higher than room temperature heptafluoro-propane gas
Mix under the pressure condition of body；
3), carbon dioxide extinguishing agent is finally filled, under the pressure condition that pressure is converted into liquid higher than room temperature carbon dioxide
Mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610246817.6A CN105903141A (en) | 2016-04-20 | 2016-04-20 | Fire extinguishing agent being stored in the status of mixed liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610246817.6A CN105903141A (en) | 2016-04-20 | 2016-04-20 | Fire extinguishing agent being stored in the status of mixed liquid |
Publications (1)
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| CN105903141A true CN105903141A (en) | 2016-08-31 |
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|---|---|---|---|
| CN201610246817.6A Pending CN105903141A (en) | 2016-04-20 | 2016-04-20 | Fire extinguishing agent being stored in the status of mixed liquid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213563A (en) * | 2017-06-22 | 2017-09-29 | 哲弗智能***（上海）有限公司 | A kind of battery extinguishing device of utilization heptafluoro-propane and carbon-dioxide fire engine |
| CN107243128A (en) * | 2017-06-22 | 2017-10-13 | 哲弗智能***（上海）有限公司 | It is a kind of with HFC-236fa and the battery fire extinguisher of carbon-dioxide fire engine |
| CN108005712A (en) * | 2017-12-08 | 2018-05-08 | 西安安备特安防科技有限公司 | A kind of deep cooling noble gas system avenges fire extinguishing method and device |
| CN112670641A (en) * | 2020-12-24 | 2021-04-16 | 登峰科技(江西)有限公司 | Flame-retardant explosion-proof safety protection wrapping cover for lithium ion battery pack |
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| CN101371944A (en) * | 2008-08-22 | 2009-02-25 | 杭州新纪元安全产品有限公司 | Extinguishment product using clear gas as sponging agent as well as production method and fire-extinguishing system |
| CN102386530A (en) * | 2011-11-04 | 2012-03-21 | 公安部天津消防研究所 | Power socket with fire protection function |
| CN204798676U (en) * | 2015-06-24 | 2015-11-25 | 青岛中阳消防科技股份有限公司 | Store pressure formula gas type automatic fire extinguishing device in advance |
| CN105169584A (en) * | 2015-09-30 | 2015-12-23 | 公安部天津消防研究所 | Multistage response type automatic extinguishing device and use method |
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2016
- 2016-04-20 CN CN201610246817.6A patent/CN105903141A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371944A (en) * | 2008-08-22 | 2009-02-25 | 杭州新纪元安全产品有限公司 | Extinguishment product using clear gas as sponging agent as well as production method and fire-extinguishing system |
| CN102386530A (en) * | 2011-11-04 | 2012-03-21 | 公安部天津消防研究所 | Power socket with fire protection function |
| CN204798676U (en) * | 2015-06-24 | 2015-11-25 | 青岛中阳消防科技股份有限公司 | Store pressure formula gas type automatic fire extinguishing device in advance |
| CN105169584A (en) * | 2015-09-30 | 2015-12-23 | 公安部天津消防研究所 | Multistage response type automatic extinguishing device and use method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213563A (en) * | 2017-06-22 | 2017-09-29 | 哲弗智能***（上海）有限公司 | A kind of battery extinguishing device of utilization heptafluoro-propane and carbon-dioxide fire engine |
| CN107243128A (en) * | 2017-06-22 | 2017-10-13 | 哲弗智能***（上海）有限公司 | It is a kind of with HFC-236fa and the battery fire extinguisher of carbon-dioxide fire engine |
| CN108005712A (en) * | 2017-12-08 | 2018-05-08 | 西安安备特安防科技有限公司 | A kind of deep cooling noble gas system avenges fire extinguishing method and device |
| CN112670641A (en) * | 2020-12-24 | 2021-04-16 | 登峰科技(江西)有限公司 | Flame-retardant explosion-proof safety protection wrapping cover for lithium ion battery pack |
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Application publication date: 20160831 |
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