CN107213576A - A kind of clean efficient gas extinguishing agent composition - Google Patents
A kind of clean efficient gas extinguishing agent composition Download PDFInfo
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- CN107213576A CN107213576A CN201710580534.XA CN201710580534A CN107213576A CN 107213576 A CN107213576 A CN 107213576A CN 201710580534 A CN201710580534 A CN 201710580534A CN 107213576 A CN107213576 A CN 107213576A
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- extinguishing
- gas
- btp
- agent composition
- extinguishing agent
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0092—Gaseous extinguishing substances, e.g. liquefied gases, carbon dioxide snow
Abstract
A kind of clean efficient gas extinguishing agent composition, including the trifluoro propene of 5% 15%2 bromine 3,3,3（BTP）, 95% 85% hydrofluoroalkane extinguishing chemical or inert gas agents, the percentage of the gas extinguishing agent composition is on the basis of molal volume, wherein, the hydrofluoroalkane extinguishing chemical includes heptafluoro-propane, pentafluoroethane, fluoroform, 1,1,2,2,3,3, one or more in 4 seven fluorine pentamethylene, the inert gas agent includes one or both of nitrogen and carbon dioxide.The gas extinguishing agent composition can improve the extinguishing concentration of inert gas, reduce storage volume, reduce the chamber effect potential value of hydrofluoroalkane, improve environment, strengthen fire extinguishing function, and property is stable, long-term preserve will not produce precipitation, and raw material is easy to get, low production cost.
Description
Technical field
The present invention relates to a kind of clean efficient gas extinguishing agent composition.
Background technology
" breathing out dragon " firing-fighting medium is due to having the advantages that fire extinguishing is efficient, chemical property is stable and electrical insulation capability is good, once
It is used widely in fields such as industrial production, civil buildings.However, the eighties in last century, environmentalist is had found on the South Pole
Existing ozone hole is vacated, and " breathing out dragon " molecule is to cause one of arch-criminal of ozone hole.In order to protect atmospheric ozone layer, connection
State is closed by a series of pacts to the production of " Kazakhstan dragon " extinguishing chemical and using the strict limitation of progress, and has formulated clearly superseded
Timetable.Therefore, the focus that finding " breathing out dragon " substitute products of new generation for putting out a fire efficient, environment-friendly becomes fire-fighting domain is asked
Topic.
In gas extinguishing agent currently used in the market, the occupation rate of hydrofluoroalkane (HFCs) fire extinguishing system is highest, is accounted for
70% or so of the market share, inert gas accounts for 20% or so of the gas extinguishing agent market share, and other class gas extinguishing agents are about
Account for 10% the market share.On the extinguishing mechanism of hydrofluoroalkane, Zegers et al. this is had made intensive studies and drawn with
Draw a conclusion:The not hydrofluoroalkane (HFCs) and perfluoro alkane (PFCs) of bromine atom and iodine atom, its inhibition acts on whole
Proportion is less than 35% in individual fire extinguishing procedure, it is seen then that it using physics fire extinguishing function is leading that HFCs extinguishing mechanism, which is,.In addition,
HFCs and PFCs decompose difficulty in an atmosphere, and greenhouse effect value is higher, and extinguishing concentration is 7-10% or so, far above " breathing out dragon "
The 3.5% of 1301, and during release, most of HFCs classes extinguishing chemical boiling point is high, and mobility is not good, in use
Need the driving of gases at high pressure.It is cleaning in fire extinguishing procedure, pollution-free although inert gas fire-fighting medium is as natural-gas, release
Put performance good, but inert gas relies primarily on cooling and dilution oxygen concentration reaches fire extinguishing purpose, and extinguishing concentration is up to 30-
50%, therefore the storage of inert gas medium occupancy volume is larger, so as to limit the use scope of inert gas agent.
In order to overcome the defect of inert gas and halogenated hydrocarbons extinguishing chemical, T.Noto etc. proposes the concept of " compound " extinguishing chemical,
I.e. halogenated hydrocarbons is mixed to form complex media with inert gas.The presence of halogenated hydrocarbons causes compound fire-extinguishing agent to have necessarily flame
Organoselenocyanate, fire-fighting efficiency relative inertness gas is greatly improved, and storage volume is also accordingly reduced；In addition, inert gas
Addition significantly improves deficiency of the alkyl halide in terms of conveying and release performance, and reduces the consumption of halogenated hydrocarbons, subtracts
Light influence of the halocarbon to environment.And numerous studies show, the composite fire extinguishing medium that brominated hydrocarbon is constituted with inert gas can
Show to cooperate with fire extinguishing function, the fire-fighting efficiency of composite fire extinguishing medium be more than fire-fighting efficiency when two kinds of extinguishing chemicals are used alone it
With.
The content of the invention
Its purpose of the invention is that a kind of clean efficient gas extinguishing agent composition of offer, the gas extinguishing agent group
Compound can improve the extinguishing concentration of inert gas, reduce storage volume, reduce the chamber effect potential value of hydrofluoroalkane, improve
Environment, strengthens fire extinguishing function, and property is stable, and long-term preserve will not produce precipitation, and raw material is easy to get, low production cost.
The technical scheme realized above-mentioned purpose and taken, including 5%-15%2- bromo- 3,3,3- trifluoro propenes (BTP),
95%-85% hydrofluoroalkanes extinguishing chemical or inert gas agent, the percentage of the gas extinguishing agent composition is with a mole body
On the basis of product, wherein, the hydrofluoroalkane extinguishing chemical includes heptafluoro-propane, pentafluoroethane, fluoroform, 1,1,2,2,3,3,4-
One or more in seven fluorine pentamethylene, the inert gas agent includes one or both of nitrogen and carbon dioxide.
Beneficial effect
The present invention has advantages below compared with prior art.
1. gas extinguishing agent composition of the present invention can improve the extinguishing concentration of inert gas, memory bank is reduced
Product；
2. gas extinguishing agent composition of the present invention can reduce the chamber effect potential value of hydrofluoroalkane, improve ring
Border friendly；
3. the chemical BTP selected by the present invention, has certain inhibitory action to flame, therefore can strengthen fire extinguishing and make
With；
4. the additive selected by the present invention is nontoxic or low toxicity material, substantially pollution-free to human body conjunction fire-extinguishing location,
Environment friendly is good；
5. the gas extinguishing agent property that the present invention is provided is stable, long-term preserve will not produce precipitation；
6. the composition material of the present invention is easy to get, low production cost；
7. the preparation method of gas extinguishing agent of the present invention is a kind of physical mixing processes between each component, and operation
Condition is entirely normal temperature and pressure, therefore easy to operate.It is corrosion-free to equipment again because each constitutive property is stable.It can not only adopt
Manually operate, be more suitable for industrialized production.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is test platform principle schematic of the invention.
Embodiment
A kind of clean efficient gas extinguishing agent composition, including 5%-15%2- bromo- 3,3,3- trifluoro propenes (BTP),
95%-85% hydrofluoroalkanes extinguishing chemical or inert gas agent, the percentage of the gas extinguishing agent composition is with a mole body
On the basis of product, wherein, the hydrofluoroalkane extinguishing chemical includes heptafluoro-propane, pentafluoroethane, fluoroform, 1,1,2,2,3,3,4-
One or more in seven fluorine pentamethylene, the inert gas agent includes one or both of nitrogen and carbon dioxide.
2- bromo- 3,3,3- trifluoro propenes (BTP) are Halon Replacement extinguishing chemicals of new generation, and its Cup Burner extinguishes ethanol fire
Critical extinguishing concentration be only 2.6%, and BTP Ozone Depleting Potential (ODP) is zero, chamber effect potential value (GWP)
Only 0.005, BTP firing-fighting mediums meet the basic demand of Halon Replacement extinguishing chemical of new generation, are a kind of very excellent and have
The Halon's succedaneum of good application prospect.However, BTP boiling point (34 DEG C) is higher, it is liquid under normal temperature, causes its mobility not
It is good.The invention provides a kind of gas extinguishing agent composition.Said composition using BTP as base material, by with other gas extinguishing agents
Mixed, form compound fire-extinguishing agent.This compound fire-extinguishing agent fire extinguishing is efficient, environment-friendly, can preferably solve 2- bromo- 3,
The problem of 3,3- trifluoro propene poor fluidities.BTP is mixed with inert gas agent, and fire-fighting efficiency relative inertness gas is greatly carried
Height, storage volume is also accordingly reduced；BTP is mixed with hydrofluoroalkane extinguishing chemical, can not only improve the fire-fighting efficiency of hydrofluoroalkane,
And the problem of hydrofluoroalkane chamber effect potential value is too high can be effectively improved.
In following embodiments, embodiment 1 be the present invention raw material be heptafluoro-propane, BTP according to different proportion add situation
Under implementation process；Embodiment 2,3 is mainly that hydrofluoroalkane extinguishing chemical is changed to pentafluoroethane and 1,1,2,2,3,3 by the present invention,
Implementation process in the case of the fluorine pentamethylene of 4- seven；Embodiment 4,5 is mainly of the invention by inert gas agent (nitrogen, two
Carbonoxide) implementation process with BTP in the case of compound.
Raw material and equipment used in following embodiments, if being by disclosed commercialization canal without special explanation
Road is obtained.Method used in following embodiments, if being the conventional method in this area without special explanation.Wherein：
The bromo- 3,3,3- trifluoro propenes (BTP) of 2-：Voluntarily synthetically prepared (the invention of ship chemistry Science and Technology Ltd. in Jiujiang
Patent has been authorized)
The fluorine pentamethylene of 1,1,2,2,3,3,4- seven, pentafluoroethane：Lark prestige Science and Technology Ltd.
Heptafluoro-propane, nitrogen, carbon dioxide：Jiujiang Zhong Chuan fire-fighting equipments Co., Ltd
Embodiment 1
The composition of the composite gas extinguishing chemical raw material of the present embodiment is：BTP+ heptafluoro-propanes
1. the test of extinguishing effect
1.1 experimental facilities：
Test platform is as shown in figure 1, chief component includes cup burner, fuel supply system, firing-fighting medium confession
To device and each several part measuring and controlling.The combustion cup of cup burner is cylinder, and material is heat resistant glass, and external diameter is
30mm, wall thickness is that edge chamfer at the top of 1.5mm, cup is to be separately installed with thermocouple, thermocouple 1 in 45 °, cup and in hybrid chamber
The temperature of measurable hybrid chamber, thermocouple 2 is used for the temperature for measuring gas in cup burner, the test fuel combustion of thermocouple 3
The flame envelope temperature of flame.Fuel inlet is arranged at the bottom close to burner, and entrance is connected with fuel tank, using law of connected vessels, leads to
The height of iron stand is overregulated to adjust the height of liquid level in combustion cup.The chimney of burner is cylinder, is made up of quartz, interior
Footpath is 85mm.Air adjusts flow velocity by air compressor provides and has a mass flowmenter, and gas extinguishing agent passes through mass flow
Meter control charging (note：BTP is fed by peristaltic pump, and carries out on-line proving with electronic balance).During experiment, air and extinguishing chemical
First mixed in hybrid chamber, enter back into burner base.Hybrid chamber adjusts temperature by temperature control device and heater.Burning
High about 100mm, a diameter of 7mm glass marble are arranged at device bottom, for being mixed again to air and extinguishing chemical.Each thermoelectricity
Even temperature is measured in real time by temperature measuring equipment.
1.2 experimentation
In experimentation, air compressor is first turned on, air velocity is adjusted, is allowed to be maintained at 40L/min；Then adjust
The height of liquid level in burner, is allowed to away from rim of a cup about 2mm, the temperature of hybrid chamber gradually rises to 100 DEG C from room temperature and kept not
Become.After each side is ready, start igniting, and liquid level in cup is adjusted to away from rim of a cup about 1mm；Pre-burning 60s, treats flame stabilization
Afterwards, start to be passed through extinguishing chemical.During being passed through extinguishing chemical, keep heptafluoro-propane and BTP molar flow ratio certain, gradually
Regulation control mass flowmenter and peristaltic pump, until flame extinguishes completely.When increasing the flow of extinguishing chemical, using approximatioss, often
It is secondary to be increased with 3% amplification.Time delayses are 10s after regulation extinguishing chemical flow velocity, so that air and extinguishing chemical can be according to new
Ratio is mixed and reached in burner in time.When fray-out of flame, record the flow velocity of air, mass flowmenter registration, pressure and
Temperature data.Change heptafluoro-propane and BTP molar flow ratio, repeat above step.Before test next time, first reduction combustion
The height of liquid level in burner, and remove the precipitation in cup, residue etc., in order to avoid the accuracy of influence measurement.
1.3 compound fire-extinguishing agent extinguishing concentration theoretical calculation formulas
If collaboration fire extinguishing function is not present in two kinds of composite gas extinguishing chemicals each other, the critical extinguishing concentration of composite gas
Shown in theoretical prediction model such as formula (1),
In formulaWithRepresent extinguishing chemical 1 respectively and critical fire extinguishing molar fraction when extinguishing chemical 2 is independently used；C0Table
Give instructions in reply and close the critical fire extinguishing molar fraction of gas extinguishing agent.X1And X2Extinguishing chemical 1 and extinguishing chemical 2 are represented respectively in compound fire-extinguishing agent
In shared ratio, i.e. X1+X2=100%
If it is known that the critical extinguishing concentration of two kinds of extinguishing chemicals and their compositely proportional, just can use (1) formula to obtain and do not deposit
The critical extinguishing concentration theoretical expectation values of compound fire-extinguishing agent under synergy.
1.4 experimental result
It can be seen from experimental result when 90% heptafluoro-propane mixes fire extinguishing with 10% BTP, do not consider that collaboration is made
It is 5.65% with the calculated value of lower extinguishing concentration, and the extinguishing concentration for testing measurement only has 4.55%.Thus prove, seven fluorine
Propane and the composite fire extinguishing medium of BTP formation show good positive coorperativity fire extinguishing function.
Embodiment 2
The raw material proportioning of the composite gas extinguishing chemical of the present embodiment is：Pentafluoroethane+BTP
1. the test of extinguishing effect：
Gas extinguishing agent in test example is changed to pentafluoroethane, with the identical equipment of test example 1 and operating procedure, determined
The extinguishing concentration of the gas extinguishing agent of embodiment 2.
It can be seen from experimental result when 90% pentafluoroethane mixes fire extinguishing with 10% BTP, do not consider that collaboration is made
It is 7.05% with the calculated value of lower extinguishing concentration, and the extinguishing concentration for testing measurement only has 5.6%.Thus prove, five fluorine
Ethane and the composite fire extinguishing medium of BTP formation show good positive coorperativity fire extinguishing function.
Embodiment 3
The raw material proportioning of the composite gas extinguishing chemical of the present embodiment is：Fluorine pentamethylene+the BTP of 1,1,2,2,3,3,4- seven
1. the test of extinguishing effect：
Gas extinguishing agent in test example is changed to 1,1,2,2,3,3,4- seven fluorine pentamethylene, set with the identical of test example 1
Standby and operating procedure, determines the extinguishing concentration of the gas extinguishing agent of embodiment 4.
1,1,2,2,3,3, the 4- seven fluorine pentamethylene when 90% it can be seen from experimental result is mixed with 10% BTP and gone out
When fiery, the calculated value for the lower extinguishing concentration that do not consider to act synergistically is 6.87%, and the extinguishing concentration for testing measurement only has
5.6%.Thus prove, 1,1,2,2,3,3,4- seven fluorine pentamethylene and the composite fire extinguishing medium of BTP formation are shown well just
Cooperate with fire extinguishing function.
Embodiment 4
The raw material proportioning of the composite gas extinguishing chemical of the present embodiment is：Nitrogen+BTP
1. the test of extinguishing effect：
Gas extinguishing agent in test example is changed to nitrogen, with the identical equipment of test example 1 and operating procedure, determines and implements
The extinguishing concentration of the gas extinguishing agent of example 3.
It can be seen from experimental result when 90% nitrogen mixes fire extinguishing with 10% BTP, do not consider under synergy
The calculated value of extinguishing concentration is 15.21%, and the extinguishing concentration for testing measurement only has 11.2%.Thus prove, nitrogen with
The composite fire extinguishing medium of BTP formation shows good positive coorperativity fire extinguishing function.
Embodiment 5
The raw material proportioning of the composite gas extinguishing chemical of the present embodiment is：Carbon dioxide+BTP
1. the test of extinguishing effect：
Gas extinguishing agent in test example is changed to carbon dioxide, with the identical equipment of test example 1 and operating procedure, determined
The extinguishing concentration of the gas extinguishing agent of embodiment 4.
It can be seen from experimental result when 90% carbon dioxide mixes fire extinguishing with 10% BTP, do not consider that collaboration is made
It is 12.29% with the calculated value of lower extinguishing concentration, and the extinguishing concentration for testing measurement only has 9.2%.Thus prove, dioxy
Change carbon and the composite fire extinguishing medium of BTP formation shows good positive coorperativity fire extinguishing function.
Claims (1)
1. a kind of clean efficient gas extinguishing agent composition, it is characterised in that including 5%-15%2- bromo- 3,3,3- trifluoro propenes
（BTP）, 95%-85% hydrofluoroalkanes extinguishing chemical or inert gas agent, the percentage of the gas extinguishing agent composition is to rub
On the basis of your volume, wherein, the hydrofluoroalkane extinguishing chemical includes heptafluoro-propane, pentafluoroethane, fluoroform, 1, and 1,2,2,3,
One or more in 3,4- seven fluorine pentamethylene, the inert gas agent includes one kind or two in nitrogen and carbon dioxide
Kind.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905037A (en) * | 2018-06-22 | 2018-11-30 | 厦门泰消防科技开发有限公司 | A kind of novel C FA gas extinguishing agent and its fire extinguishing system |
| CN109609297A (en) * | 2018-12-28 | 2019-04-12 | 中山市天图精细化工有限公司 | A kind of Multifunctional aerosol agent |
| CN110639157A (en) * | 2019-09-24 | 2020-01-03 | 九江中船化学科技有限公司 | Efficient composite fire extinguishing agent and preparation method thereof |
| CN111569348A (en) * | 2020-05-09 | 2020-08-25 | 浙江永和制冷股份有限公司 | Environment-friendly fire extinguishing agent and preparation method thereof |
| CN113181589A (en) * | 2021-03-22 | 2021-07-30 | 华中科技大学 | High-efficiency fire extinguishing agent and fire safety extinguishing process |
| CN115814325A (en) * | 2022-11-23 | 2023-03-21 | 浙江工业大学 | Fluorine-containing fire extinguishing agent composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297016A (en) * | 2005-03-04 | 2008-10-29 | 纳幕尔杜邦公司 | Compositions comprising a fluoroolefin |
| CN104826263A (en) * | 2015-05-04 | 2015-08-12 | 上海理工大学 | Carbon-free gas hydrate fire extinguishing agent and preparation method thereof |
| CN106267672A (en) * | 2016-08-10 | 2017-01-04 | 九江中船化学科技有限公司 | A kind of gas extinguishing agent compositions and the gas extinguishing agent of preparation thereof |
-
2017
- 2017-07-17 CN CN201710580534.XA patent/CN107213576A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297016A (en) * | 2005-03-04 | 2008-10-29 | 纳幕尔杜邦公司 | Compositions comprising a fluoroolefin |
| CN104826263A (en) * | 2015-05-04 | 2015-08-12 | 上海理工大学 | Carbon-free gas hydrate fire extinguishing agent and preparation method thereof |
| CN106267672A (en) * | 2016-08-10 | 2017-01-04 | 九江中船化学科技有限公司 | A kind of gas extinguishing agent compositions and the gas extinguishing agent of preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| 卢大勇: "7FA临界灭火浓度的测定及7FA/BTP协同灭火作用研究", 《安全与环境学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905037A (en) * | 2018-06-22 | 2018-11-30 | 厦门泰消防科技开发有限公司 | A kind of novel C FA gas extinguishing agent and its fire extinguishing system |
| CN109609297A (en) * | 2018-12-28 | 2019-04-12 | 中山市天图精细化工有限公司 | A kind of Multifunctional aerosol agent |
| CN110639157A (en) * | 2019-09-24 | 2020-01-03 | 九江中船化学科技有限公司 | Efficient composite fire extinguishing agent and preparation method thereof |
| CN111569348A (en) * | 2020-05-09 | 2020-08-25 | 浙江永和制冷股份有限公司 | Environment-friendly fire extinguishing agent and preparation method thereof |
| CN113181589A (en) * | 2021-03-22 | 2021-07-30 | 华中科技大学 | High-efficiency fire extinguishing agent and fire safety extinguishing process |
| CN115814325A (en) * | 2022-11-23 | 2023-03-21 | 浙江工业大学 | Fluorine-containing fire extinguishing agent composition |
| CN115814325B (en) * | 2022-11-23 | 2024-04-19 | 浙江工业大学 | Fluorine-containing fire extinguishing agent composition |
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