CN106563243A - Fine water mist type water-based fire extinguishing agent and application method thereof - Google Patents
Fine water mist type water-based fire extinguishing agent and application method thereof Download PDFInfo
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- CN106563243A CN106563243A CN201610956147.7A CN201610956147A CN106563243A CN 106563243 A CN106563243 A CN 106563243A CN 201610956147 A CN201610956147 A CN 201610956147A CN 106563243 A CN106563243 A CN 106563243A
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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
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Abstract
The invention provides a fine water mist type water-based fire extinguishing agent. The fine water mist type water-based fire extinguishing agent is characterized in that the water-based fire extinguishing agent comprises a first fire extinguishing composition and a second fire extinguishing composition. Through the anchoring function and the spreading function of water drops generated through static attraction between polymer additives with opposite charges, the fire extinguishing time of the water-based fire extinguishing agent is greatly shortened, and the reburning preventing time of the water-based fire extinguishing agent is greatly prolonged; and meanwhile, the degradable performance is superior to that of most of water-based fire extinguishing agents in the prior art, and the environment protection fluencies are weaker.
Description
Technical field
The invention belongs to technical field of fire control；It is related to a kind of water-based extinguishing agent and its using method, more particularly, to one
Plant water mists type water-based extinguishing agent and its using method.
Background technology
According to fire-fighting Theory of Combustion, fire is the combustion reaction of combustible, it is desirable to have combustible, oxidizer and incendiary source three
Individual condition just can occur.Therefore, the ultimate principle for preventing and controlling fire is exactly one of them of destruction burning or several
Part.After combustible combustion, it is necessary to take corresponding extinguishing method, flameout is made, fire hazard is reduced to a certain extent
Property.Fire extinguishing can be put out a fire by cooling, asphyxia, isolation, four ultimate principles of Chemical Inhibition.Common extinguishing chemical be two kinds or
Two or more ultimate principles play a role jointly.
However, now widely used all kinds of extinguishing chemicals more or less exist in terms of extinguishing property or environmental conservation
Weak point, and it is very limited to the inhibitory action of fire smoke.Breathe out dragon series extinguishing chemical and contain the destruction ozone such as freon
The material of layer, plans according to agreed the eliminating with China's industry in international Montreal, is phased out.At present, halon fire agent
Substitution studies can be divided into two general orientation：(1) applied research substituted with other fire extinguishing systems.Such as with CO2, fine mist fire-fighting
System etc. is substituted；(2) a kind of new and effective, environmental protection, with low cost and can eliminate the poisonous dense smoke in the scene of a fire is developed
Fire extinguishing system, this has highly important meaning for the development for promoting domestic and international fire-fighting cause.
Among these, not only fire-fighting efficiency is high for water mists type water-based extinguishing agent, and has fewer environmental impacts；Have gas concurrently simultaneously
The two-fold advantage that body is put out a fire with above-water method, and the maximized shortcoming for reducing them, are becoming with fastest developing speed in the world, city
The best environmental protection of field prospect and the extinguishing chemical of high-efficiency water-saving.
Water mists type water-based extinguishing agent adds some high-effect fire-extinguishing additives in water mists, with water as carrier, so as to same
Shi Shixian physics is put out a fire and inhibition.Wherein, physics extinguishing mechanism is mainly oxygen barrier and cooling of the water mists to fuel surface；
Chemical fire extinguishment mechanism mainly blocks the chemical reaction chain in fuel combustion.
Additive is divided into inorganic salts additive and the class of organic additive two, and the latter is mainly by surfactant, shading
Agent and viscous regulator are constituted, or are made up of surfactant, stabilizer and solvent.The extinguishing property of inorganic additives is strong
In general water mists additive, but inorganic salt is easily ionized in aqueous, ionizes the metal ion for generating to accurate instrument
Device and metal material cause serious harm, so the range of application of inorganic additives is very limited.Organic additive
The main mobile performance by improving water mists improves the extinguishing property of water mists with the light-proofness for strengthening water mists；But it is thin
Water smoke oxygen barrier effect has much room for improvement, and solution is not ideal enough in the spreadability of fuel surface；Simultaneously surfactant, stabilizer and viscous
Property regulator etc. be usually high-carbon chain hydrocarbon, it is difficult to degrade.
In order to take into account fire-fighting efficiency and environmental protection impact, people are more to improve and many from the selection of extinguishing chemical constituent species, content
What component compounding angularly further improved water mists type water-based extinguishing agent puts extinguishing property.However, most people but have ignored
One it is apparent the fact：Because the mobility of water is very strong, most of water does not really play fire extinguishing function and is lost.Root
According to the research report of National Fire Protection Association (NFPA) (NFPA), in all kinds of fire, the average utilization of water-based extinguishing agent is only 29.6%.
On the other hand, most of water being lost in carries additive causes non-fire area to produce the secondary disaster and environmentally friendly secondary disaster.This
Hydrophobic surface is by guard space and there is the more common by guard space of altitudinal gradient.
Therefore, for drawbacks described above, fire-fighting efficiency and environmental protection impact can be taken into account and is improved in the urgent need to finding one kind
The water-based extinguishing agent of average utilization.
The content of the invention
For achieving the above object, on the one hand, the invention provides a kind of water mists type water-based extinguishing agent, it is characterised in that
The water-based extinguishing agent includes the first fire-extinguishing composite and the second fire-extinguishing composite.
According to aforesaid water mists type water-based extinguishing agent, wherein, first fire-extinguishing composite comprising carbamide 17-18 parts,
85% phosphatase 11 2-13 parts, diethylene glycol monobutyl ether 0.4-0.6 parts, sodium lauryl sulphate 1.6-1.8 parts, Polyethylene Glycol 4-5 parts,
Glycerol 3-4 parts, Propylene Glycol 0.2-0.4 part, ethanol 0.3-0.5 parts, Decanol 0.4-0.6 parts, fluorocarbon surfactant 0.6-
0.8 part, lauryl alcohol 0.6-0.8 parts and water 56-57 parts.
According to aforesaid water mists type water-based extinguishing agent, wherein, the fluorocarbon surfactant is selected from nonionic fluorine carbon
Surfactant and cation fluorine carbon surface active agent.Preferably, the fluorocarbon surfactant is selected from nonionic fluorine carbon table
Face activating agent.
In a detailed embodiment, the fluorocarbon surfactant is Shanghai Jiu Shicheng Chemical Co., Ltd.s
Ee602 or Ee606.
According to aforesaid water mists type water-based extinguishing agent, wherein, the molecular formula of the Polyethylene Glycol is HO (CH2CH2)nH,
Wherein, n=5-5000.
In a detailed embodiment, the Polyethylene Glycol is the PEG-2000 of Jiangsu Province Hai'an petrochemical corporation (complex).
According to aforesaid water mists type water-based extinguishing agent, wherein, the first fire-extinguishing composite also straight chain comprising 0.5-5.0 parts
Type or branched chain type polyethyleneimine.Preferably, the polyethyleneimine is selected from linear type polyethylene imines.
According to aforesaid water mists type water-based extinguishing agent, wherein, number-average molecular weight Mn=of the linear type polyethylene imines
25000-30000 dalton.
In a detailed embodiment, the linear type polyethylene imines is selected from Tianjin A Faaisha Chemical Co., Ltd.s
PEI, purity be more than 99%, number-average molecular weight Mn=28000 dalton.
According to aforesaid water mists type water-based extinguishing agent, wherein, the pH value of first fire-extinguishing composite is 5.0-6.5.
Preferably, the pH value of first fire-extinguishing composite is 5.0-6.0；It is highly preferred that the pH value of first fire-extinguishing composite is
5.0-5.5。
According to aforesaid water mists type water-based extinguishing agent, wherein, second fire-extinguishing composite includes water and 0.5-5.0 parts
Polyacrylic acid.Wherein, the polyacrylic acid is acrylate homopolymer, and molecular formula is (C3H4O2)n, n is 20-100.
According to aforesaid water mists type water-based extinguishing agent, wherein, polyacrylic number-average molecular weight Mn=25000-
30000 dalton.
In a detailed embodiment, acrylate homopolymer of the polyacrylic acid selected from Sigma-Aldrich companies
PAA, purity is more than 99%, number-average molecular weight Mn=28000 dalton.
According to aforesaid water mists type water-based extinguishing agent, wherein, the pH value of first fire-extinguishing composite is 7.5-9.0.
Preferably, the pH value of first fire-extinguishing composite is 8.0-9.0；It is highly preferred that the pH value of first fire-extinguishing composite is
8.5-9.0。
On the other hand, present invention also offers a kind of using method of aforementioned water mists type water-based extinguishing agent, its feature exists
In methods described comprises the following steps：
1) the first fire-extinguishing composite and the second fire-extinguishing composite are prepared respectively, and it is in homogeneous phase to stir respective solution, and is adjusted to conjunction
Suitable pH value；
2) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
3) fine water mist fire-extinguishing system is started, by first fire-extinguishing composite and the second fire-extinguishing composite respectively with water mists shape
Formula is injected in the same position of scene of fire simultaneously, until stamping out a fire.
Inventor has found, in common water-based extinguishing agent polymeric additive of the addition with opposite charges, with reference to specific
Means, can not only increase water droplet in the momentum with fiery Contact, improve its ability for penetrating high-temperature flue gas；And
Make scene of fire unevaporated water drop can firmly " grappling " on the surface of scene of fire, this for improve water system fire extinguishing
The attack time of agent and anti-burnbacktime are highly beneficial.Any particular theory is not intended to limited to, it is believed by the inventors that above-mentioned fire extinguishing
Performance improvement be derived from opposite charges polymeric additive between electrostatic attraction produced by water droplet grappling effect and
The effect of sprawling.
Compared with prior art, the present invention has following beneficial effect：
(1) water-based extinguishing agent of the invention reduces the number of dropouts of water, improves utilization rate；
(2) water-based extinguishing agent grappling of the invention effect and the effect of sprawling are more notable, so as to cause attack time and anti-resume combustion
Time greatly shortens；
(3) polymer with opposite charges does not produce negative effect with other additives of common water-based extinguishing agent, does not affect
The effective ingredient of aqueouss extinguishing chemical plays fire extinguishing function, therefore with higher promotional value；
(4) water-based extinguishing agent degradability of the invention is significantly better than most of water-based extinguishing agents in prior art, environmentally friendly shadow
Sound is less.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate this
Bright rather than restriction the scope of the present invention.In addition, it is to be understood that after present disclosure has been read, those skilled in the art
The present invention can be made various changes or modifications, these equivalent form of values equally fall within what the application appended claims were limited
Scope.
Will be helpful to understand the present invention by following embodiments, but the scope of the present invention can not be limited.In the present invention, such as
Without special instruction, all chemical substances are commercially available prod, and it is pure that purity is at least chemistry.All degrees are quality hundred
Divide ratio.
Embodiment 1
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 0.5 part of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.0 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 0.5 part of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 9.0 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Embodiment 2
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 1.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.5 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 1.5 parts of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 8.5 to be adjusted to pH value using sodium hydroxide；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Embodiment 3
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 2.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.2 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 2.5 parts of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 8.8 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Embodiment 4
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 3.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.4 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 3.5 parts of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 8.6 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Embodiment 5
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 4.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.3 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 4.5 parts of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 8.7 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Comparative example 1
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water；Agitating solution is in homogeneous phase, and is used
It is 5.0 that hydrochloric acid is adjusted to pH value；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water；Agitating solution is in homogeneous phase, and uses hydrogen
It is 9.0 that sodium oxide is adjusted to pH value；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Comparative example 2
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 0.5 part of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.0 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 0.5 part of straight chain type PEI, wherein, directly
Chain polyethyleneimine is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn=
28000 dalton；Agitating solution is in homogeneous phase, and agitating solution is in homogeneous phase, and it is 5.0 to be adjusted to pH value using hydrochloric acid；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Comparative example 3
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water and 0.5 part of polyacrylic acid, wherein,
Polyacrylic acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000
Dalton；Agitating solution is in homogeneous phase, and it is 9.0 to be adjusted to pH value using sodium hydroxide；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 0.5 part of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 9.0 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Comparative example 4
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts and straight chain type PEI 0.5 part of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water, its
In, linear type polyethylene imines is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn
=28000 dalton；Agitating solution is in homogeneous phase, and it is 5.0 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 0.5 part of straight chain type PEI, wherein, directly
Chain polyethyleneimine is selected from the PEI of Tianjin A Faaisha Chemical Co., Ltd.s, and purity is more than 99%, number-average molecular weight Mn=
28000 dalton；Agitating solution is in homogeneous phase, and agitating solution is in homogeneous phase, and it is 9.0 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
Comparative example 5
1) the first fire-extinguishing composite is prepared, first fire-extinguishing composite includes 17.5 parts of carbamide, 2.5 parts of 85% phosphatase 11, diethyl
0.5 part of glycol monobutyl ether, 1.7 parts of sodium lauryl sulphate, 4.5 parts of PEG-2000,3.5 parts of glycerol, 0.3 part of Propylene Glycol, second
56.5 parts of 0.4 part of alcohol, 0.5 part of Decanol, 0.7 part of Ee602,0.7 part of lauryl alcohol and water and 0.5 part of polyacrylic acid, wherein,
Polyacrylic acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000
Dalton；Agitating solution is in homogeneous phase, and it is 5.0 to be adjusted to pH value using hydrochloric acid；
2) the second fire-extinguishing composite is prepared, second fire-extinguishing composite includes water and 0.5 part of polyacrylic acid, wherein poly- third
Olefin(e) acid is selected from the acrylate homopolymer PAA of Sigma-Aldrich companies, and purity is more than 99%, number-average molecular weight Mn=28000 dongle
；Agitating solution is in homogeneous phase, and it is 9.0 to be adjusted to pH value using sodium hydroxide；
3) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
4) scene of fire is arranged as follows：Weigh 1kg gasoline and import the disk that ignites, the disk that ignites is placed in into fuel support
Underface, weighs the grillage comburant of 40kg.The grillage is by the batten layering nail system of long 100cm, width 50cm, high 50cm
Into per layer of 8 batten are uniformly put, totally 12 layers.The grillage is placed on fuel support, and positioned at the surface of the disk that ignites.
Ignite grillage comburant, and burning starts fire extinguishing for 5 minutes.
5) fine water mist fire-extinguishing system is started, relevant parameter is：Nozzle exit pressure 2.0MPa；Power 1.8P；Flow 80L/min；
Water smoke diameter is less than 400 microns；By first fire-extinguishing composite and the second fire-extinguishing composite according to above-mentioned parameter respectively away from
It is injected in the same position of scene of fire simultaneously in 30 ° of water mists form with level on the rightabout away from the m of burning things which may cause a fire disaster 3, directly
To stamping out a fire, fire extinguishing parameter is recorded, as a result referring to table 1.
The fire extinguishing parameter of embodiment 1-5 of table 1 and comparative example 1-5
| Test number | Attack time (s) | Anti- burnbacktime (min) |
| Embodiment 1 | 47.4 | 24.2 |
| Embodiment 2 | 42.6 | 25.9 |
| Embodiment 3 | 38.7 | 27.4 |
| Embodiment 4 | 35.5 | 28.3 |
| Embodiment 5 | 31.9 | 29.4 |
| Comparative example 1 | 59.3 | 17.6 |
| Comparative example 2 | 60.2 | 16.9 |
| Comparative example 3 | 59.9 | 17.1 |
| Comparative example 4 | 60.5 | 17.6 |
| Comparative example 5 | 60.0 | 17.7 |
As it can be seen from table 1 comparative example 1-5 on attack time and anti-burnbacktime without statistical significant difference.This its
In, first fire-extinguishing composite and the second fire-extinguishing composite of comparative example 1 are not used the straight chain type PEI and polyacrylic acid of the present invention；
First fire-extinguishing composite and the second fire-extinguishing composite of comparative example 2-5 has simply used identical straight chain type PEI or polypropylene
Acid.As a result show, either do not use polymeric additive of the present invention with opposite charges, or using the poly- of like charges
Compound additive, can not be obviously improved the extinguishing property of water-based extinguishing agent.
And the extinguishing chemical of embodiment of the present invention 1-5 has used the polymeric additive with opposite charges, if to compare
The data of example 1 as benchmark, then decrement and opposite charges of embodiment of the present invention 1-5 relative to the attack time of comparative example 1
The content of polymeric additive presents good positive correlation.That is, the polymeric additive with opposite charges
Content is higher, and attack time is greatly shortened.Similarly, the anti-burnbacktime of the extinguishing chemical of embodiment of the present invention 1-5 is presented
Go out identical statistical law.
The above results show, in common water-based extinguishing agent polymeric additive of the addition with opposite charges, with reference to spy
Determine means, water droplet can not only be increased in the momentum with fiery Contact, improve its ability for penetrating high-temperature flue gas；And
And make scene of fire unevaporated water drop can firmly " grappling " on the surface of scene of fire, this goes out for improving water system
The attack time of fiery agent and anti-burnbacktime are highly beneficial.
Additionally, according to GB GB/T 21856-2008《Chemicals rapid biodegradability carbon dioxide produces test》It is right
The aqueouss extinguishing chemical of the embodiment of the present invention 1 is detected.As a result show, the aqueouss extinguishing chemical of the embodiment of the present invention 1 was at 28 days
Biological degradation rate is 81.0%, can require that belonging to can fast degraded biologically much larger than the rapid biodegradability of degraded 60% in 28 days
Property chemicals, carrying capacity of environment is extremely low.Biodegradable fluorocarbon surface work is difficult in view of including in the aqueouss extinguishing chemical of the present invention
Property agent, above-mentioned biological degradation rate has been significantly better than most of aqueouss extinguishing chemicals of the prior art, and environmental protection affects less.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., be all contained within protection scope of the present invention.
Claims (10)
1. a kind of water mists type water-based extinguishing agent, it is characterised in that the water-based extinguishing agent includes the first fire-extinguishing composite and the
Two fire-extinguishing composites.
2. water mists type water-based extinguishing agent according to claim 1, wherein, first fire-extinguishing composite includes carbamide
17-18 parts, 85% phosphatase 11 2-13 parts, diethylene glycol monobutyl ether 0.4-0.6 parts, sodium lauryl sulphate 1.6-1.8 parts, poly- second two
Alcohol 4-5 parts, glycerol 3-4 parts, Propylene Glycol 0.2-0.4 part, ethanol 0.3-0.5 parts, Decanol 0.4-0.6 parts, fluorocarbon surface are lived
Property agent 0.6-0.8 parts, lauryl alcohol 0.6-0.8 parts and water 56-57 parts.
3. water mists type water-based extinguishing agent according to claim 2, wherein, the fluorocarbon surfactant is selected from nonionic
Type fluorocarbon surfactant.
4. the water mists type water-based extinguishing agent according to any one of claim 1-3, wherein, first fire-extinguishing composite is also
Linear type polyethylene imines comprising 0.5-5.0 parts.
5. water mists type water-based extinguishing agent according to claim 4, wherein, the number of the linear type polyethylene imines is divided equally
Son amount Mn=25000-30000 dalton.
6. the water mists type water-based extinguishing agent according to any one of claim 5, wherein, the pH of first fire-extinguishing composite
It is worth for 5.0-6.5.
7. the water mists type water-based extinguishing agent according to any one of claim 1-3, wherein, the second fire-extinguishing composite bag
The polyacrylic acid of aqueous and 0.5-5.0 parts.
8. water mists type water-based extinguishing agent according to claim 7, wherein, polyacrylic number-average molecular weight Mn=
25000-30000 dalton.
9. water mists type water-based extinguishing agent according to claim 8, wherein, the pH value of first fire-extinguishing composite is
7.5-9.0。
10. a kind of using method of the water mists type water-based extinguishing agent described in any one of claim 1-9, it is characterised in that institute
The method of stating comprises the following steps：
1) the first fire-extinguishing composite and the second fire-extinguishing composite are prepared respectively, and it is in homogeneous phase to stir respective solution, and is adjusted to conjunction
Suitable pH value；
2) respectively the first fire-extinguishing composite and the second fire-extinguishing composite be injected into into the first and second fine water mist fire-extinguishing system water-retentions
Tank；
3) fine water mist fire-extinguishing system is started, by first fire-extinguishing composite and the second fire-extinguishing composite respectively with water mists shape
Formula is injected in the same position of scene of fire simultaneously, until stamping out a fire.
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Cited By (4)
| 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 |
| CN106563242A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Water mist type water-based extinguishing agent and using method thereof |
| CN106563241A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist-type water based extinguishing agent, and application method thereof |
| CN106563245A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist water fire extinguishing agent and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050118106A1 (en) * | 2001-12-07 | 2005-06-02 | Schaefer Ted H. | Aqueous foaming composition |
| CN1826155A (en) * | 2003-07-23 | 2006-08-30 | 巴斯福股份公司 | Fire control composition and method |
| CN105484322A (en) * | 2015-12-23 | 2016-04-13 | 武汉广益交通科技股份有限公司 | Anti-freezing preservative for cold region tunnel fire protection and use method thereof |
| CN105797301A (en) * | 2016-04-20 | 2016-07-27 | 四川瑞思可消防科技有限公司 | Pollution-free water-series extinguishant |
| 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 |
| CN106563245A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist water 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 |
-
2016
- 2016-10-27 CN CN201610956147.7A patent/CN106563243A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050118106A1 (en) * | 2001-12-07 | 2005-06-02 | Schaefer Ted H. | Aqueous foaming composition |
| CN1826155A (en) * | 2003-07-23 | 2006-08-30 | 巴斯福股份公司 | Fire control composition and method |
| CN105484322A (en) * | 2015-12-23 | 2016-04-13 | 武汉广益交通科技股份有限公司 | Anti-freezing preservative for cold region tunnel fire protection and use method thereof |
| CN105797301A (en) * | 2016-04-20 | 2016-07-27 | 四川瑞思可消防科技有限公司 | Pollution-free water-series extinguishant |
| 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 |
| CN106563245A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist water 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 |
Cited By (4)
| 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 |
| CN106563242A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Water mist type water-based extinguishing agent and using method thereof |
| CN106563241A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist-type water based extinguishing agent, and application method thereof |
| CN106563245A (en) * | 2016-10-27 | 2017-04-19 | 陈潜 | Fine water mist water fire extinguishing agent and application method thereof |
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