CN105797301A - Pollution-free water-series extinguishant - Google Patents
Pollution-free water-series extinguishant Download PDFInfo
- Publication number
- CN105797301A CN105797301A CN201610246119.6A CN201610246119A CN105797301A CN 105797301 A CN105797301 A CN 105797301A CN 201610246119 A CN201610246119 A CN 201610246119A CN 105797301 A CN105797301 A CN 105797301A
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- Prior art keywords
- water
- pollution
- fire
- extinguishant
- series
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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
- A62D1/0028—Liquid extinguishing substances
- A62D1/0035—Aqueous solutions
- A62D1/0042—"Wet" water, i.e. containing surfactant
-
- 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
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention provides a pollution-free water-series extinguishant which is prepared by completely mixing and stirring the following ingredients by content: 0.9-1% of diethylene glycol monobutyl ether, 1.1-1.2% of polyethylene glycol, 2.8-2.9% of dodecyl dimethyl betaine, 3.0-3.1% of urea, 3.0-3.1% of sodium chloride, 1.4-1.5% of sodium benzoate, 0.2-0.3% of xanthan gum, 5.2-5.5% of alkyl glycoside, 1.8-1.9% of Tween 20, 0.1-0.2% of 2-methyl-2,4-pentadiol, 0.3-0.4% of a fluorocarbon surfactant and 78.9-80.2% of water. The pollution-free water-series extinguishant provided by the invention combines the functions of chemical extinguishment and physical extinguishment, and has the characteristics of being safe, environmentally friendly, free of residues, easy to store and transport, and the like.
Description
Technical field
The present invention relates to, in fire extinguishing field of material technology, particularly relate to a kind of free of contamination water-based extinguishing agent.
Background technology
Water-based extinguishing agent can put out a fire to save life and property flammable solid (A class), can fuel oil (B class), combustible gas class (C class) etc. from the beginning of fire.
Its extinguishing effect is substantially better than dry powder, the extinguishing chemicals such as 1211.Therefore, water-based extinguishing agent obtains increasing research worker and makes
The attention of user.The most conventional most water-based extinguishing agent low-freezings are-10 DEG C, low-temperature resistance poor performance, and freezing point
Strongly limit its scope of application at-10 DEG C, the temperature having greatly countries and regions winters will be less than-10 DEG C, and such as
Really water-based extinguishing agent has solidified in this temperature, then just illustrates that it cannot use, loses the function of fire extinguishing.And
And a lot of water-based extinguishing agent adds inorganic salt, and such as ammonium hydrogen carbonate, explore and press, there is chemical reaction in these inorganic salts and fire
After, substantial amounts of harmful gas can be produced, not only polluting environment also has injury to human body.
Summary of the invention
In order to solve the problems referred to above, the present invention provides a kind of free of contamination water-based extinguishing agent, environmentally safe and solidification
Point is low, and extinguishing effect is good.
A kind of pollution-free water-based extinguishing agent of the present invention is achieved through the following technical solutions:
A kind of pollution-free water-based extinguishing agent, is thoroughly mixed stirring according to following components and content and makes, described component and containing
Amount:
Diethylene glycol monobutyl ether 0.9 ~ 1.0%；
Polyethylene Glycol 1.1 ~ 1.2%；
Empgen BB 2.8 ~ 2.9%；
Carbamide 3.0 ~ 3.1%；
Sodium chloride 3.0 ~ 3.1%；
Sodium benzoate 1.4 ~ 1.5%；
Xanthan gum former 0.2 ~ 0.3%；
Alkyl polyglucoside 5.2 ~ 5.5%；
Polysorbas20 1.8 ~ 1.9%；
2-methyl-2,4-PD 0.1 ~ 0.2%；
Fluorocarbon surfactant 0.3 ~ 0.4%；
Water 78.9 ~ 80.2%.
The invention have the benefit that
1, the water-based extinguishing agent of the present invention is that inhibition combines with physics fire extinguishing, not only can put out A class (general solid kind fire
Calamity) fire, the water-insoluble flammable liquid of B class (such as gasoline, kerosene, diesel oil etc.) fire, C class (gas and steam) fire, fire extinguishing
Effective, applied widely；And extinguishing chemical of the present invention with the addition of carbamide, sodium chloride and polysorbas20, utilize carbamide, sodium chloride and
Containing substantial amounts of in the feature of the carbon dioxide that polysorbas20 heat (80 DEG C) quickly produces, and the extinguishing chemical of present invention offer
Hydrone, runs into the high temperature substantial amounts of steam of generation in fire extinguishing procedure and can be rapidly reached cooling.
2, safe and environment-friendly, noresidue: the extinguishing chemical of the present invention from producing, transport, store, the process such as use be abampere
Complete, human body is not resulted in any injury；And noresidue after using, the extinguishing chemical of the present invention is crossed after date and can be cleaned as greasy dirt
Agent uses, environmentally friendly.
3, easily stored and transport: the freezing point of water-based extinguishing agent that the present invention provides is-16 DEG C, anti-freeze, melting
Good, it is thus susceptible to deposit and transport.
Detailed description of the invention
The detailed description of the invention of embodiment shown below, is described in further detail the foregoing of the present invention again.
The environment friendly and pollution-free water-based extinguishing agent of one that the present invention provides, mixes to be thoroughly mixed according to following components and content and stirs
Mixing becomes:
Described component and content:
Diethylene glycol monobutyl ether 0.9 ~ 1.0%；
Polyethylene Glycol 1.1 ~ 1.2%；
Empgen BB 2.8 ~ 2.9%；
Carbamide 3.0 ~ 3.1%；
Sodium chloride 3.0 ~ 3.1%；
Sodium benzoate 1.4 ~ 1.5%；
Xanthan gum former 0.2 ~ 0.3%；
Alkyl polyglucoside 5.2 ~ 5.5%；
Polysorbas20 1.8 ~ 1.9%；
2-methyl-2,4-PD 0.1 ~ 0.2%；
Fluorocarbon surfactant 0.3 ~ 0.4%；
Water 78.9 ~ 80.2%.
Embodiment 1:
Described formula proportion is diethylene glycol monobutyl ether 0.9%；Polyethylene Glycol 1.1%；Empgen BB 2.8%；Carbamide
3.0%；Sodium chloride 3.0%；Sodium benzoate 1.4%；Xanthan gum former 0.2%；Alkyl polyglucoside 5.2%；Polysorbas20 1.8%；2-methyl-2,4-
Pentanediol 0.1%；Fluorocarbon surfactant 0.3%；Water 80.2%.
Embodiment 2:
Described formula proportion is diethylene glycol monobutyl ether 1.0%；Polyethylene Glycol 1.2%；Empgen BB 2.9%；Carbamide
3.1%；Sodium chloride 3.1%；Sodium benzoate 1.5%；Xanthan gum former 0.3%；Alkyl polyglucoside 5.5%；Polysorbas20 1.9%；2-methyl-2,4-
Pentanediol 0.2%；Fluorocarbon surfactant 0.4%；Water 78.9%.
Embodiment 3:
Described formula proportion is diethylene glycol monobutyl ether 1.0%；Polyethylene Glycol 1.1%；Empgen BB 2.8%；Carbamide
3.0%；Sodium chloride 3.0%；Sodium benzoate 1.4%；Xanthan gum former 0.3%；Alkyl polyglucoside 5.2%；Polysorbas20 1.8%；2-methyl-2,4-
Pentanediol 0.1%；Fluorocarbon surfactant 0.3%；Water 80.0%.
Embodiment 4:
Described formula proportion is diethylene glycol monobutyl ether 0.9%；Polyethylene Glycol 1.2%；Empgen BB 2.9%；Carbamide
3.0%；Sodium chloride 3.0%；Sodium benzoate 1.5%；Xanthan gum former 0.3%；Alkyl polyglucoside 5.3%；Polysorbas20 1.9%；2-methyl-2,4-
Pentanediol 0.2%；Fluorocarbon surfactant 0.3%；Water 79.5%.
Embodiment 5:
Described formula proportion is diethylene glycol monobutyl ether 0.9%；Polyethylene Glycol 1.2%；Empgen BB 2.8%；Carbamide
3.1%；Sodium chloride 3.0%；Sodium benzoate 1.4%；Xanthan gum former 0.2%；Alkyl polyglucoside 5.4%；Polysorbas20 1.8%；2-methyl-2,4-
Pentanediol 0.1%；Fluorocarbon surfactant 0.3%；Water 79.8%.
Embodiment 6:
Described formula proportion is diethylene glycol monobutyl ether 1.0%；Polyethylene Glycol 1.1%；Empgen BB 2.8%；Carbamide
3.0%；Sodium chloride 3.1%；Sodium benzoate 1.5%；Xanthan gum former 0.2%；Alkyl polyglucoside 5.5%；Polysorbas20 1.9%；2-methyl-2,4-
Pentanediol 0.2%；Fluorocarbon surfactant 0.4%；Water 79.3%.
Embodiment 7:
Described formula proportion is diethylene glycol monobutyl ether 0.9%；Polyethylene Glycol 1.2%；Empgen BB 2.9%；Carbamide
3.1%；Sodium chloride 3.1%；Sodium benzoate 1.5%；Xanthan gum former 0.3%；Alkyl polyglucoside 5.5%；Polysorbas20 1.9%；2-methyl-2,4-
Pentanediol 0.2%；Fluorocarbon surfactant 0.4%；Water 79%.
The experiment effect of embodiment 1-7 is as shown in table 1,
The experimental result table of table 1 water-based extinguishing agent
In upper table, the specification of described A class fire is to be more than or equal to 55B(1.73m more than the specification of 1A, B class fire2).
Toxicity test in described table 1:
Toxicity test model is rectangular fish tank, pours in the water-based extinguishing agent proportioning liquid of the present invention, and put into fresh and alive in fish jar
Brachydanio rerio, calculate the mortality rate of Brachydanio rerio after 48h.
A class fire experiment of going out in described table 1:
A class fire die trial type is by batten and the square-shaped metal system being neatly deposited on metal literary composition frame (or on other similar supports)
Ignite dish constitute, a height of 400mm ± 10mm of support, batten should through dried, its moisture content be maintained at 10%～14%(do
Time dry, temperature should not be greater than 105 DEG C) density of timber should be 0.45g/cm3～0.55g/cm when moisture content 12%；The horizontal stroke of batten
Stabbing and be square. length of side 39mm ± 1mm, the dimensional discrepancy of timber length is ± 10mm.
Batten layering is stacked, the arrangement at a right angle of levels batten, every layer this should between be spaced, test model be square
Grillage, its length of side is equal to the length of batten, and the parameter such as batten length, radical and the number of plies of test model should meet the mark of A class fire
Quasi-specification 1A, i.e. has the grillage that wood stacking is 12 layers every layer 6 of 72 a length of 500mm.
Grillage in above-mentioned specification fully burns (i.e. when grillage burning to its Mass lost is to the 53%～57% of original amount
Time) after begin with the present invention water-based extinguishing agent fire extinguishing.
There is no visible flame (but occurring in 10min that the most lasting flame can be disregarded) after fire network extinguishing in 10min, be
Putting out a fire successfully, the attack time to standard specifications 1A of A class fire of the water-based extinguishing agent that the present invention provides is 25S ~ 27S.
B class fire experiment of going out in described table 1:
B class fire fire fighting test model is constituted by putting into motor petrol in circular discs, and circular discs steel plate is made, 55B(1.73m2)
Moulded dimension format diameter 1480 ± 15mm, internal depth 150 ± 5mm, wall thickness 2.5mm, fuel bulk 55L.
Light the gasoline in above-mentioned experimental model, after pre-burning 60S, start fire extinguishing.
Also remaining gasoline in occurring without resume combustion, and dish after fray-out of flame in 1min, then put out a fire successfully, the present invention provides
The attack time to standard specifications 55B of B class fire of water-based extinguishing agent is 28S ~ 30S.
The object, technical solutions and advantages of the present invention have been carried out further by the lifted embodiment of the present invention or embodiment
Describe in detail, be it should be understood that embodiment provided above or embodiment are only the preferred embodiment of the present invention,
Not in order to limit the present invention, all any amendments the most made for the present invention, equivalent,
Improve, should be included within the scope of the present invention.
Claims (1)
1. a pollution-free water-based extinguishing agent, it is characterised in that: it is to make according to following components and content mix and blend, described group
Divide and content:
Diethylene glycol monobutyl ether 0.9 ~ 1.0%；
Polyethylene Glycol 1.1 ~ 1.2%；
Empgen BB 2.8 ~ 2.9%；
Carbamide 3.0 ~ 3.1%；
Sodium chloride 3.0 ~ 3.1%；
Sodium benzoate 1.4 ~ 1.5%；
Xanthan gum former 0.2 ~ 0.3%；
Alkyl polyglucoside 5.2 ~ 5.5%；
Polysorbas20 1.8 ~ 1.9%；
2-methyl-2,4-PD 0.1 ~ 0.2%；
Fluorocarbon surfactant 0.3 ~ 0.4%；
Water 78.9 ~ 80.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610246119.6A CN105797301B (en) | 2016-04-20 | 2016-04-20 | A kind of pollution-free water-based extinguishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610246119.6A CN105797301B (en) | 2016-04-20 | 2016-04-20 | A kind of pollution-free water-based extinguishing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105797301A true CN105797301A (en) | 2016-07-27 |
| CN105797301B CN105797301B (en) | 2019-01-29 |
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ID=56457270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610246119.6A Expired - Fee Related CN105797301B (en) | 2016-04-20 | 2016-04-20 | A kind of pollution-free water-based extinguishing agent |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540397A (en) * | 2016-10-27 | 2017-03-29 | 陈潜 | Water mists type water-based extinguishing agent and its using method |
| CN106563241A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist-type water based extinguishing agent, and application method thereof |
| CN106563243A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist type water-based fire extinguishing agent and application method thereof |
| CN106563242A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Water mist type water-based extinguishing agent and using method thereof |
| CN106964099A (en) * | 2017-05-18 | 2017-07-21 | 四川威利安特消防科技有限公司 | A kind of is the water-based extinguishing agent with low form |
| CN106964098A (en) * | 2017-05-18 | 2017-07-21 | 四川威利安特消防科技有限公司 | A kind of preparation method for compounding synergetic A, B, E class water-based extinguishing agent |
| CN106964097A (en) * | 2017-05-18 | 2017-07-21 | 四川威利安特消防科技有限公司 | It is a kind of can low-temperature storage water-based extinguishing agent |
| CN106983982A (en) * | 2017-05-31 | 2017-07-28 | 四川威利安特消防科技有限公司 | A kind of pollution-free water-based extinguishing agent |
| CN107137856A (en) * | 2017-05-18 | 2017-09-08 | 四川威利安特消防科技有限公司 | One kind compounding synergetic A, B, E class water-based extinguishing agent |
| CN108421197A (en) * | 2018-06-01 | 2018-08-21 | 潘洋 | A kind of preparation method and application of water-based extinguishing agent |
| CN111202939A (en) * | 2020-02-14 | 2020-05-29 | 四川凯威消防设备有限公司 | Water-based extinguishing agent |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296781B1 (en) * | 1997-05-02 | 2001-10-02 | Biogenesis Enterprises, Inc. | Fire retardant and fire extinguishing material |
| CN101583340A (en) * | 2006-12-15 | 2009-11-18 | Cp凯尔科美国公司 | Surfactant thickened systems comprising microfibrous cellulose and methods of making same |
| KR20120052616A (en) * | 2010-11-16 | 2012-05-24 | 한서대학교 산학협력단 | Composition of liquid fire extinguishing and manufacturing and method of it |
| CN102921140A (en) * | 2012-11-07 | 2013-02-13 | 公安部天津消防研究所 | Liquid fire extinguishing agent for putting out edible oil fire hazards |
| CN103331008A (en) * | 2013-07-25 | 2013-10-02 | 公安部天津消防研究所 | Methanol high-efficiency alcohol resistant aqueous film-forming foam fire extinguishing agent and preparation method thereof |
| CN103961835A (en) * | 2014-05-22 | 2014-08-06 | 国家电网公司 | Environment-friendly fire extinguishing agent for forest fire |
| CN104667474A (en) * | 2015-03-31 | 2015-06-03 | 朴美兰 | Environment-friendly efficient anti-explosion anti-flaming multifunctional water-based fire extinguishing agent |
| CN104857662A (en) * | 2015-05-26 | 2015-08-26 | 厦门安港消防科技有限公司 | Foam extinguishing agent |
-
2016
- 2016-04-20 CN CN201610246119.6A patent/CN105797301B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296781B1 (en) * | 1997-05-02 | 2001-10-02 | Biogenesis Enterprises, Inc. | Fire retardant and fire extinguishing material |
| CN101583340A (en) * | 2006-12-15 | 2009-11-18 | Cp凯尔科美国公司 | Surfactant thickened systems comprising microfibrous cellulose and methods of making same |
| KR20120052616A (en) * | 2010-11-16 | 2012-05-24 | 한서대학교 산학협력단 | Composition of liquid fire extinguishing and manufacturing and method of it |
| CN102921140A (en) * | 2012-11-07 | 2013-02-13 | 公安部天津消防研究所 | Liquid fire extinguishing agent for putting out edible oil fire hazards |
| CN103331008A (en) * | 2013-07-25 | 2013-10-02 | 公安部天津消防研究所 | Methanol high-efficiency alcohol resistant aqueous film-forming foam fire extinguishing agent and preparation method thereof |
| CN103961835A (en) * | 2014-05-22 | 2014-08-06 | 国家电网公司 | Environment-friendly fire extinguishing agent for forest fire |
| CN104667474A (en) * | 2015-03-31 | 2015-06-03 | 朴美兰 | Environment-friendly efficient anti-explosion anti-flaming multifunctional water-based fire extinguishing agent |
| CN104857662A (en) * | 2015-05-26 | 2015-08-26 | 厦门安港消防科技有限公司 | Foam extinguishing agent |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540397A (en) * | 2016-10-27 | 2017-03-29 | 陈潜 | Water mists type water-based extinguishing agent and its using method |
| CN106563241A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist-type water based extinguishing agent, and application method thereof |
| CN106563243A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist type water-based fire extinguishing agent and application method thereof |
| CN106563242A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Water mist type water-based extinguishing agent and using method thereof |
| CN106964099A (en) * | 2017-05-18 | 2017-07-21 | 四川威利安特消防科技有限公司 | A kind of is the water-based extinguishing agent with low form |
| CN106964098A (en) * | 2017-05-18 | 2017-07-21 | 四川威利安特消防科技有限公司 | A kind of preparation method for compounding synergetic A, B, E class water-based extinguishing agent |
| CN106964097A (en) * | 2017-05-18 | 2017-07-21 | 四川威利安特消防科技有限公司 | It is a kind of can low-temperature storage water-based extinguishing agent |
| CN107137856A (en) * | 2017-05-18 | 2017-09-08 | 四川威利安特消防科技有限公司 | One kind compounding synergetic A, B, E class water-based extinguishing agent |
| CN106983982A (en) * | 2017-05-31 | 2017-07-28 | 四川威利安特消防科技有限公司 | A kind of pollution-free water-based extinguishing agent |
| CN108421197A (en) * | 2018-06-01 | 2018-08-21 | 潘洋 | A kind of preparation method and application of water-based extinguishing agent |
| CN111202939A (en) * | 2020-02-14 | 2020-05-29 | 四川凯威消防设备有限公司 | Water-based extinguishing agent |
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