CN104801001A - Mixture fire extinguishing agent and applications thereof - Google Patents
Mixture fire extinguishing agent and applications thereof Download PDFInfo
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- CN104801001A CN104801001A CN201410033124.XA CN201410033124A CN104801001A CN 104801001 A CN104801001 A CN 104801001A CN 201410033124 A CN201410033124 A CN 201410033124A CN 104801001 A CN104801001 A CN 104801001A
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- volumetric concentration
- extinguishing chemical
- hfc
- mixture
- fire
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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
- A62D1/0028—Liquid extinguishing substances
- A62D1/005—Dispersions; Emulsions
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Dispersion Chemistry (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The present invention provides a mixture fire extinguishing agent, which contains trifluoromethane, hexafluoropropane and heptafluoropropane, wherein the trifluoromethane volume concentration is 15-22%, the heptafluoropropane volume concentration is 5-15%, and the hexafluoropropane volume concentration is 5-15%. With the mixture fire extinguishing agent of the present invention, various fire disasters with different characters in different occasions can be rapidly extinguished.
Description
Technical field
The invention belongs to extinguishing chemical field, particularly relate to a kind of mixture extinguishing chemical.
Background technology
Brominated Halon extinguishing chemical is a kind of high-efficiency fire-extinguishant widely applied, but scientific research in recent years shows, breathe out dragon ground chemical stability very good, when rising to the earth stratospheric always, just photodissociation becomes oxygen base, bromo etc., these groups have the ability seriously destroying the earth's ozone layer that people depend on for existence, scientific circles' value defines the destructiveness of these materials to ozone, this value is called that destroying ozone latent energy value (is called for short: ODP), breathe out dragon (to be called for short: CFC) destroy ozone latent energy value and want large many than general fluorochloroparaffins, the degree of its harm also just more very.
Because earth's ozone layer is destroyed, the radiation intensity on earth surface is increased, causes cutaneum carcinoma, cataract, suppress human immune system, the Probabilities such as crops infringement, floods increase.Through debating actively of scientific circles for many years, its harm achieves worldwide common recognition finally, and the signing of Montreal protocol is exactly the embodiment of this common recognition.
At present, halon fire agent stops producing in developed country, and forbids the use in non-essential occasion, and developing country has also worked out superseded plan, and is progressively implementing.Global scientist all at the halon fire agent substitute that unremitting effort, developmental research are suitable, as Chinese patent application CN1051126, CN1056254, CN1054544 etc. all describe not brominated fire extinguishant compositions.
IC) and inert gas and water smoke the invention of comprehensive analysis World Developed Countries, is mainly four large classes: perfluorocarbon hydrogen compound (is called for short: FC), containing iodine compound (be called for short:.Perfluorocarbon hydrogen compound high expensive, and can not decompose in an atmosphere, cause the environmental problem of atmospheric warming; Very high containing iodine compound production cost, its toxicity is also higher; Inert gas fire-fighting poor-performing, and additional equipment investment is high; The fire extinguishing of the more inapplicable accurate facilities of water smoke, easily causes the local pollution after fire extinguishing.Therefore, desirable halon fire agent substitute is not yet invented so far.
Summary of the invention
Object of the present invention is just to provide a kind of new mixture extinguishing chemical, can significantly improve the speed of fire-fighting fire extinguishing.
Mixture extinguishing chemical provided by the invention, comprises fluoroform, HFC-236fa and heptafluoro-propane, and wherein, the volumetric concentration of described fluoroform is 15-22%, and the volumetric concentration of described heptafluoro-propane is 5-15%, and the volumetric concentration of described HFC-236fa is 5-15%.
Alternatively, the volumetric concentration of described fluoroform is 19-21%, and the volumetric concentration of described heptafluoro-propane is 7-9%, and the volumetric concentration of described HFC-236fa is 6-8%.
Alternatively, the volumetric concentration of described fluoroform is 20%, and the volumetric concentration of described heptafluoro-propane is 8%, and the volumetric concentration of described HFC-236fa is 7%.
Alternatively, described HFC-236fa is 1,1,1,3,3,3-HFC-236fa, and described heptafluoro-propane is HFC-227ea (HFC227ea).
Alternatively, also comprise inert gas, described inert gas is N
2, Ar and/or CO
2, wherein, described inert gas is surplus.
Alternatively, also comprise assist gas, described assist gas is CHF
2cF
2cF
3, CF
4, CF
3cF
3, CF
3cF=CF
2, CF
3cF
2cF
3, C
4f
8and/or CHClFCF
3.
Alternatively, described assist gas is CF
3cF
3and CF
3cF=CF
2.
Alternatively, described CF
3cF
3volume content be 6%, described CF
3cF=CF
2volume content be 2%.
The invention also discloses a kind of any one mixture extinguishing chemical above-mentioned, the application of propellant in as dry powder, fire foam.
Alternatively, described dry powder, fire foam are for being sodium bicarbonate powder, potassium bicarbonate powder, potassium chloride dry powder, potassium sulfate dry powder, Amino group powder and protein foam, fluoroprotein foam, AFFF or alcohol foam.
Fire-extinguishing composite of the present invention has following beneficial effect: effectively: put out rapidly different occasion various fire of different nature.
Detailed description of the invention
Below the embodiment of the present invention is described in detail, but does not limit the present invention.
Preparation embodiment:
Reclaimed by the gas filled in hand extinguisher, and load the admixture of gas of following comparative example or embodiment in original place, its filling coefficient is 0.3Kg/l, and canned pressure is 1.5MPa, makes mixture extinguishing chemical.
The extinguishing chemical formula of table 1 comparative example 1-3 and embodiment 1-12
Effect example:
The fire fighting test experimental subjects of this effect example is normal heptane.The food tray of 0.25m2 is placed on the centre in room.Test the 50g normal heptane being placed with equivalent in food tray each time, normal heptane is apart from 5cm place, food tray top.Wherein food tray be steel, at least 6.4mm thick, have liquid-tight welding point, reinforce top edge with the foot rest that 3.8cm*3.8cm, 4.8cm are thick.Top surface edge is wide is 44mm.Food tray top is positioned on the 66-76cm of ground.
The following comparative example 1-3 that above-mentioned preparation embodiment is obtained, and embodiment 1-12 extinguishing chemical, respectively identical above-mentioned burning things which may cause a fire disaster is put out a fire, identical in agent application concentration, spurt direction identical when, record the required shortest time of putting out a fire completely, and not resume combustion in 10s after having required burning things which may cause a fire disaster to go out.
The fire extinguishing data of table 2 comparative example 1-3 and embodiment 1
Ginseng sees the above table the effect data of 2, can find, when fire extinguishant compositions equivalent, when fire extinguishant compositions uses fluoroform, HFC-236fa and heptafluoro-propane, excellent synergy can be produced, the extinguishing effect obtained is compared and is used alone, and blow-off velocity significantly promotes, thus can eliminate burning things which may cause a fire disaster in time, efficiently, and due to the shortening of attack time, the amount of spurting the also corresponding minimizing of extinguishing chemical, the residue after can fire extinguishing being reduced, and reduce environmental pollution.
The fire extinguishing data of table 3 embodiment 1-7
| Extinguishing chemical | Blowdown time (s) |
| Embodiment 1 | 7.6 |
| Embodiment 2 | 7.4 |
| Embodiment 3 | 7.9 |
| Embodiment 4 | 7.1 |
| Embodiment 5 | 6.1 |
| Embodiment 6 | 7.2 |
| Embodiment 7 | 6.9 |
Ginseng sees the above table the effect data of 3, can find, when the volumetric concentration of fluoroform in fire extinguishant compositions be 19-21%, the volumetric concentration of HFC-236fa be the volumetric concentration of 6-8% and heptafluoro-propane be 7-9% time, extinguishing effect is comparatively excellent, can shorten attack time.Further, inventor found through experiments, and when the volumetric concentration of fluoroform is 20%, the volumetric concentration of heptafluoro-propane is 8%, and the volumetric concentration of HFC-236fa is 7%, and extinguishing effect is optimum, possesses outstanding technique effect.
The fire extinguishing data of table 4 embodiment 8-12
| Extinguishing chemical | Blowdown time (s) |
| Embodiment 8 | 6.1 |
| Embodiment 9 | 5.9 |
| Embodiment 10 | 6.6 |
| Embodiment 11 | 5.2 |
| Embodiment 12 | 4.1 |
Ginseng sees the above table the effect data of 4, can find, when adding perfluoroethane and hexafluoropropene in ternary fire extinguishant compositions, extinguishing effect can be improved further, and when in fire extinguishant compositions, add perfluoroethane and hexafluoropropene simultaneously, and the volumetric concentration of perfluoroethane is 6%, when the volumetric concentration of hexafluoropropene is 2%, very excellent extinguishing effect can be reached, thus can be in time, eliminate burning things which may cause a fire disaster efficiently, and due to the shortening of attack time, the amount of spurting the also corresponding minimizing of extinguishing chemical, residue after significantly can reducing fire extinguishing, and significantly reduce environmental pollution.
Be described in detail specific embodiments of the invention above, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (10)
1. a mixture extinguishing chemical, comprises fluoroform, HFC-236fa and heptafluoro-propane, and wherein, the volumetric concentration of described fluoroform is 15-22%, and the volumetric concentration of described heptafluoro-propane is 5-15%, and the volumetric concentration of described HFC-236fa is 5-15%.
2. mixture extinguishing chemical as claimed in claim 1, it is characterized in that: the volumetric concentration of described fluoroform is 19-21%, the volumetric concentration of described heptafluoro-propane is 7-9%, and the volumetric concentration of described HFC-236fa is 6-8%.
3. mixture extinguishing chemical as claimed in claim 2, it is characterized in that: the volumetric concentration of described fluoroform is 20%, the volumetric concentration of described heptafluoro-propane is 8%, and the volumetric concentration of described HFC-236fa is 7%.
4. mixture extinguishing chemical as claimed in claim 1, it is characterized in that: described HFC-236fa is 1,1,1,3,3,3-HFC-236fa, described heptafluoro-propane is HFC-227ea (HFC227ea).
5. mixture extinguishing chemical as claimed in claim 1, it is characterized in that: also comprise inert gas, described inert gas is N
2, Ar and/or CO
2, wherein, described inert gas is surplus.
6. mixture extinguishing chemical as claimed in claim 1, it is characterized in that: also comprise assist gas, described assist gas is CHF
2cF
2cF
3, CF
4, CF
3cF
3, CF
3cF=CF
2, CF
3cF
2cF
3, C
4f
8and/or CHClFCF
3.
7. mixture extinguishing chemical as claimed in claim 6, is characterized in that: described assist gas is CF
3cF
3and CF
3cF=CF
2.
8. mixture extinguishing chemical as claimed in claim 7, is characterized in that: described CF
3cF
3volume content be 6%, described CF
3cF=CF
2volume content be 2%.
9. mixture extinguishing chemical as claimed in claim 1, the application of propellant in as dry powder, fire foam.
10. mixture extinguishing chemical as claimed in claim 9, is characterized in that: described dry powder, fire foam are for being sodium bicarbonate powder, potassium bicarbonate powder, potassium chloride dry powder, potassium sulfate dry powder, Amino group powder and protein foam, fluoroprotein foam, AFFF or alcohol foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033124.XA CN104801001B (en) | 2014-01-24 | 2014-01-24 | A kind of mixture extinguishing chemical and its application |
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|---|---|---|---|
| CN201410033124.XA CN104801001B (en) | 2014-01-24 | 2014-01-24 | A kind of mixture extinguishing chemical and its application |
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| Publication Number | Publication Date |
|---|---|
| CN104801001A true CN104801001A (en) | 2015-07-29 |
| CN104801001B CN104801001B (en) | 2018-10-26 |
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|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621158A (en) * | 2016-11-09 | 2017-05-10 | 安徽新盾消防设备有限公司 | Efficient fire-extinguishing agent based on heptafluoropropane |
| CN106807025A (en) * | 2016-12-21 | 2017-06-09 | 蚌埠市龙泰消防有限公司 | A kind of extinguishing medium and preparation method thereof |
| CN108421204A (en) * | 2017-02-15 | 2018-08-21 | 上海汇友精密化学品有限公司 | One kind containing 12 fluoro- 2- methyl-propione fire extinguishant compositions |
| CN108421202A (en) * | 2017-02-15 | 2018-08-21 | 上海汇友精密化学品有限公司 | A kind of fire extinguishant compositions |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051126A (en) * | 1989-10-04 | 1991-05-08 | 纳幕尔杜邦公司 | Fire-extinguishing composite and extinguishing method |
| CN1056254A (en) * | 1989-11-14 | 1991-11-20 | 纳幕尔杜邦公司 | Fire extinguishant compositions and using method thereof |
| 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 |
-
2014
- 2014-01-24 CN CN201410033124.XA patent/CN104801001B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051126A (en) * | 1989-10-04 | 1991-05-08 | 纳幕尔杜邦公司 | Fire-extinguishing composite and extinguishing method |
| CN1056254A (en) * | 1989-11-14 | 1991-11-20 | 纳幕尔杜邦公司 | Fire extinguishant compositions and using method thereof |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621158A (en) * | 2016-11-09 | 2017-05-10 | 安徽新盾消防设备有限公司 | Efficient fire-extinguishing agent based on heptafluoropropane |
| CN106807025A (en) * | 2016-12-21 | 2017-06-09 | 蚌埠市龙泰消防有限公司 | A kind of extinguishing medium and preparation method thereof |
| CN108421204A (en) * | 2017-02-15 | 2018-08-21 | 上海汇友精密化学品有限公司 | One kind containing 12 fluoro- 2- methyl-propione fire extinguishant compositions |
| CN108421202A (en) * | 2017-02-15 | 2018-08-21 | 上海汇友精密化学品有限公司 | A kind of fire extinguishant compositions |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104801001B (en) | 2018-10-26 |
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