CN108245819A - Water-based extinguishing agent - Google Patents
Water-based extinguishing agent Download PDFInfo
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- CN108245819A CN108245819A CN201810104395.8A CN201810104395A CN108245819A CN 108245819 A CN108245819 A CN 108245819A CN 201810104395 A CN201810104395 A CN 201810104395A CN 108245819 A CN108245819 A CN 108245819A
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- water
- extinguishing agent
- based extinguishing
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- ammonia
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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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- 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
- A62D1/0071—Foams
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The present invention relates to extinguishing chemical fields, more particularly to a kind of water-based extinguishing agent, the ingredient of water-based extinguishing agent includes water soluble salt of ammonia, surfactant, urea, antifreeze, aminocarboxylate, foaming agent and water, wherein, by weight percentage, water soluble salt of ammonia is 10 30%, urea is 15 20%, aminocarboxylate is 0.1 0.5%, foaming agent is 0.5 1%, the weight ratio of water soluble salt of ammonia and surfactant is 10:1‑30:1, the weight ratio of urea and antifreeze is 1:1 1.5, surplus is water, water-based extinguishing agent of the invention is transparent, stable storing without layering, pH value is 6.5 or so, it is non-toxic, small to the corrosivity of fire extinguisher, the compatibility of mixture system is good, environmentally friendly, and the extinguishing chemical of the present invention uses stabilization in low temperature environment, and the fire-fighting efficiency of the extinguishing chemical is high, extinguishing effect can reach 3A, 89B, in addition, the extinguishing chemical production method of the present invention is simple, economical.
Description
Technical field
The present invention relates to extinguishing chemical field, especially a kind of water-based extinguishing agent.
Background technology
Water-based extinguishing agent is usually made of water, wetting agent, fire retardant and other additives, generally with drop or with drop
It puts out a fire with the form of foams mix, water-based extinguishing agent can be used for putting out a fire to save life and property for A classes and the B classes scene of a fire, since the solidification point of water is 0
DEG C, therefore, when same water-based extinguishing agent formula is stablized under room temperature storage, when storing for subzero 20 DEG C to subzero 40 DEG C, go out
Component in fiery agent is easily precipitated or crystallization, needs constantly to adjust formula, is unfavorable for industrial large-scale production application.
Also added with various additives in water-based extinguishing agent, wherein the surfactant added in is typically relatively steady, but with
During long-term storage, surfactant also easily hydrolyzes, and water quality can be caused to be hardened after hydrolysis, at this time in fire extinguisher
Inner wall be easy for corroding, be usually added into corrosion inhibiter to solve etching problem of the water-based extinguishing agent to fire extinguisher.
Addition ethylene glycol is relatively conventional as pour-point depressant in water-based extinguishing agent, and the additive amount of ethylene glycol is more, system
Solidification point reduce it is also more, but in fire extinguishing procedure can because ethylene glycol content largely there are due to play combustion-supporting effect,
It not but not puts out a fire, can also increase the intensity of a fire.The amount of existing water-based extinguishing agent general control ethylene glycol adds simultaneously within 15%
Enter a large amount of inorganic salts to obtain the relatively low extinguishing chemical of solidification point, the type for the inorganic salts that this method adds in is more, and needs
Transparent, storage-stable extinguishing chemical could be made by adding in multiple additives, can be because of ethylene glycol if increasing the content of ethylene glycol
Combustion-supporting effect, cause fire-fighting efficiency poor, while the addition of ethylene glycol, also inorganic salts can be made easily to be precipitated at low ambient temperatures.
Invention content
The purpose of the present invention is to provide the water-based extinguishing agent used in a kind of low temperature environment, the water-based extinguishing agent is transparent,
Stable storing is environmentally friendly without layering, small to the corrosivity of fire extinguisher, and the fire-fighting efficiency of the extinguishing chemical is high, in low temperature ring
Using stablizing in border, suitable for A classes fire and the B classes fire of going out.
In order to solve the above technical problems, the invention discloses a kind of water-based extinguishing agent, the ingredient of water-based extinguishing agent includes water
Undissolved ammonium salt, surfactant, urea, antifreeze, aminocarboxylate, foaming agent and water, wherein, by weight percentage, water
Undissolved ammonium salt is 10-30%, urea 15-20%, aminocarboxylate 0.1-0.5%, foaming agent 0.5-1%, water solubility
The weight ratio of ammonium salt and surfactant is 10:1-30:1, the weight ratio of urea and antifreeze is 1:1-1.5, surplus are water.
Further, water soluble salt of ammonia and the weight ratio of surfactant are 30 in water-based extinguishing agent:1, urea and freeze proof
The weight ratio of agent is 1:1.5.
Further, water soluble salt of ammonia is two kinds of ammonium dihydrogen phosphate and diammonium hydrogen phosphate.
Further, antifreeze is one or both of ethylene glycol or glycerine.
Further, aminocarboxylate selection disodium ethylene diamine tetraacetate or tetrasodium ethylenediamine tetraacetate, diethylenetriamine
One or more of five sodium of pentacarboxylic acid, nitrilotriacetic acid trisodium salt.
Further, surfactant is perfluoroalkyl betain, fluorinated alkyl sulfonate or perfluoroalkyl sulfuric acid ester salt
In one kind.
Further, foaming agent is alkyl glycosides.
Further, a kind of preparation method of water-based extinguishing agent, it includes the following steps：
Step 1：Pure water is warming up to 50-70 DEG C, weighs urea, water soluble salt of ammonia by weight respectively, and adds in liter
It in pure water after temperature, stirs while adding, stirring obtains mixed liquor 1 after 110-130 minutes；
Step 2：Antifreeze is added in mixed liquor 1, stirring obtains mixed liquor 2 in 30-40 minutes；
Step 3：Surfactant and foaming agent are added in mixed liquor 2, stirring is uniformly mixed after 30-40 minutes
Solution 3 is closed, aminocarboxylate is added in most backward mixed liquor 3, up to water-based extinguishing agent after stirring evenly.
Further, water-based extinguishing agent can also add in corrosion inhibiter, and the corrosion inhibiter is organic phosphonate, the addition of corrosion inhibiter
Measure the 0.01-0.5% for extinguishing chemical formulation weight, wherein organic phosphonate selection ethylenediamine tetraacetic methene sodium phosphate, divinyl three
One or more of five methylenephosphonic acid of amine, five sodium or five sodium of aminotrimethylene phosphate.
The present invention water-based extinguishing agent is transparent, stable storing without layering, pH value 6.5 or so, it is non-toxic, to fire extinguisher
Corrosivity is small, and the compatibility of mixture system is good, environmentally friendly, and the extinguishing chemical of the present invention uses surely in low temperature environment
It is fixed, and the fire-fighting efficiency of the extinguishing chemical is high, extinguishing effect can reach 3A, 89B, in addition, the extinguishing chemical production method of the present invention
Simply, it is economical.
Specific embodiment
With reference to embodiment, the present invention will be further described, but is not limited to the content on specification.
The invention discloses a kind of water-based extinguishing agent, the ingredient of water-based extinguishing agent include water soluble salt of ammonia, surfactant,
Urea, antifreeze, stabilizer, foaming agent and water, wherein, by weight percentage, water soluble salt of ammonia 10-30%, aminocarboxylic
Hydrochlorate is the weight ratio of 0.1-0.5%, urea 15-20%, foaming agent 0.5-1%, water soluble salt of ammonia and surfactant
For 10-30:1, the weight ratio of urea and antifreeze is 1:1-1.5, surplus are water.
Wherein water soluble salt of ammonia is ammonium dihydrogen phosphate and diammonium hydrogen phosphate, and the addition of water soluble salt of ammonia in formula can be with
Adjustment, specially extinguishing chemical formulation weight than 10-30%, preferably formulation weight 30%.
Wherein surfactant is selected from perfluoroalkyl betain or fluorinated alkyl sulfonate or perfluoroalkyl sulfuric acid ester salt,
Foaming agent is selected from alkyl glycosides either sodium alkyl sulfate or propyl betaine.
Water soluble salt of ammonia and the weight ratio of surfactant are 10-30:1, preferably 30:1.
Wherein aminocarboxylate selection disodium ethylene diamine tetraacetate or tetrasodium ethylenediamine tetraacetate, diethylenetriamine pentacarboxylic acid
One or more of five sodium, nitrilotriacetic acid trisodium salt.
The pH value of the water-based extinguishing agent of the present invention is 6.5, by adjusting the ratio between ammonium dihydrogen phosphate and diammonium hydrogen phosphate
Example relationship adjusts the pH value of fire extinguishing systems.
Wherein one or two of the antifreeze for ethylene glycol or glycerine, antifreeze are preferably ethylene glycol, urea and freeze proof
The weight ratio of agent is 1:1-1.5 preferably 1:1.5, the solidification point of water-based extinguishing agent can be reduced by adding in urea and ethylene glycol,
Ethylene glycol is typically due to combustion-supporting effect, so as to limit the addition of ethylene glycol, in the water-based extinguishing agent formula of the present invention
In, urea and water soluble salt of ammonia are added in, by adjusting the proportionate relationship of urea and ethylene glycol, is obtained with reference to the water soluble salt of ammonia of addition
To a kind of good high water-based extinguishing agent of fire-fighting efficiency simultaneously of low-temperature storage performance.
The addition of urea and ethylene glycol and the variation of extinguishing chemical solidification point and attack time are as shown in table 1 in the present invention：
Table 1
Corrosion inhibiter can be also added in the present invention, in the formula of the present invention, corrosion inhibiter is that selection adds in, wherein corrosion inhibiter
For organic phosphonate, organic phosphonate selection ethylenediamine tetraacetic methene sodium phosphate, five sodium of diethylene triamine pentamethylene phosphonic or amino
One or more of three methene phosphoric acid, five sodium, the addition of corrosion inhibiter are the 0.01-0.5% of extinguishing chemical formulation weight, are added in
Corrosion inhibiter can further slow down corrosion of the extinguishing chemical to fire extinguisher.
Embodiment 1
The present embodiment is most preferred embodiment, and present embodiment discloses a kind of water-based extinguishing agent, the ingredient of water-based extinguishing agent is pressed
Weight percent includes ammonium dihydrogen phosphate 15%, diammonium hydrogen phosphate 15%, disodium ethylene diamine tetraacetate 0.5%, urea 20%, second
Glycol 30%, perfluoroalkyl betain 1%, alkyl glycosides 1%, water 17.5%.
It in the present embodiment, weighs the pure water of 17.5kg and is warming up to 50 DEG C, weigh 20kg urea, 15kg di(2-ethylhexyl)phosphates respectively
Said components are added in the pure water after heating, stirred while adding, rotating speed is arranged on by hydrogen ammonium and 15kg diammonium hydrogen phosphates
600-800r/min, stirring obtain mixed liquor 1 after 130 minutes, and the ethylene glycol of 30kg is added in mixed liquor 1, stir 40 minutes
After obtain mixed liquor 2, perfluoroalkyl betain 1kg and alkyl glycosides 1kg is added in mixed liquor 2, stirring obtains for 40 minutes
Even mixed solution 3 adds in the disodium ethylene diamine tetraacetate of 0.5kg in most backward mixed liquor 3, up to extinguishing chemical after stirring evenly
Product.Extinguishing chemical manufactured in the present embodiment is transparent, without layering.
The solidification point of water-based extinguishing agent is reduced by adding in ethylene glycol in the present embodiment, due to second two in fire extinguishing procedure
Alcohol can burn, and add in ammonium dihydrogen phosphate and diammonium hydrogen phosphate to delay the reaction of ethylene glycol, due to ammonium dihydrogen phosphate and phosphoric acid hydrogen
Solubility of the diammonium in ethylene glycol is small, when the content of water soluble salt of ammonia is in 10-30%, extinguishing chemical low temperature environment (such as
Subzero 20 DEG C to subzero 40 DEG C of environment) in use, water soluble salt of ammonia can be precipitated is being inactivated so as to cause the ingredient of extinguishing chemical
It is precipitated in tank, blocks the nozzle of fire suppression bottle, lead to the failure of extinguishing chemical.The cooperation of perfluoroalkyl betain and aminocarboxylate makes
With, can solve the problems, such as water soluble salt of ammonia in room temperature and low temperature environment system balance, prevent the precipitation of water soluble salt of ammonia.
Surfactant selects perfluoroalkyl betain in the present embodiment, and perfluoroalkyl betain is a kind of both sexes fluorine surface
Activating agent, content are usually 3-4 times of aminocarboxylate, and the dosage of preferred surfactant is disodium ethylene diamine tetraacetate
2 times, the extinguishing chemical surface tension of the present embodiment is 16.8mN/m, adds in surfactant to reduce the surface of extinguishing chemical
Power, adding in aminocarboxylate makes the ingredient of extinguishing chemical preferably soak flammable solid (A classes) and flammable liquid (B classes), fire extinguishing effect
Fruit is 3A, 89B, improves the ability of anti-burning of foam.
In the present embodiment urea, ammonium dihydrogen phosphate and diammonium hydrogen phosphate be by absorb heat cooling, dilution oxygen, formation every
Thermosphere is fire-retardant to achieve the effect that, wherein ammonium dihydrogen phosphate and diammonium hydrogen phosphate not only can be to fire in the gas generated by thermal decomposition
The combustion-supporting gas of field areas is diluted, and to the effect that fire extinguishing region cools down, and the phosphoric acid for decomposing generation helps
It is carbonized in the decomposition of timber, good flame retardant effect is played in the thermal decomposition for slowing down timber, and foam coverage component is covered in flammable solid
On the surface of body (A classes) and flammable liquid (B classes), the resume combustion of burning things which may cause a fire disaster can be prevented.
The specific heat capacity of the extinguishing chemical each component of the present invention is different, and the specific heat capacity of urea is 1.55KJ/Kg DEG C, diammonium hydrogen phosphate
Specific heat capacity be 1.43KJ/Kg DEG C, the specific heat capacity of ammonium dihydrogen phosphate is 1.29KJ/Kg DEG C, the specific heat capacity of ethylene glycol is 2.4KJ/
Kg DEG C, since the low mass temperature of specific heat capacity is raised fast, so under same fire scene temperature, said components rise in extinguishing chemical
There is the sequence of priority at the time point of effect, and ammonium dihydrogen phosphate endothermic temperature is raised most fast, and urea and diammonium hydrogen phosphate take second place, second
Glycol is last.The mode that above-mentioned four kinds of components work is also different, and urea, diammonium hydrogen phosphate, ammonium dihydrogen phosphate divide at high temperature
Solution, ethylene glycol at high temperature with O2Reaction, wherein urea, ammonium dihydrogen phosphate and diammonium hydrogen phosphate decompose the NH generated3And H2O is dilute
The oxygen in environment is released so that reduced with the content of the oxygen of glycol reaction, urea, ammonium dihydrogen phosphate and diammonium hydrogen phosphate
The heat absorbed simultaneously in environment is decomposed, reduces the temperature in the scene of a fire, after further making the reaction time mistake of ethylene glycol, so
The purpose done is prevented when scene of a fire burning is violent, and ethylene glycol synchronousing combustion generates combustion-supporting effect, is unfavorable for the control to the intensity of a fire
System, plays synergistic effect herein between ethylene glycol and urea, ammonium dihydrogen phosphate and diammonium hydrogen phosphate, urea, ammonium dihydrogen phosphate and
Product after diammonium hydrogen phosphate three decomposition, which reduces fire scene temperature, makes ethylene glycol not to be rapidly reached burning point, and urea, phosphorus
Acid dihydride ammonium decomposes the NH generated with diammonium hydrogen phosphate3、CO2And H2O dilutes the oxygen concentration in the scene of a fire, makes ethylene glycol can be with
Slowly reaction.
Ammonium dihydrogen phosphate and diammonium hydrogen phosphate are by thermally decomposing to generate sticky H3PO4And NH4PO3Mixture be attached to can
The surface of combustion things, the NH that the sprawling of the intensity of a fire, ammonium dihydrogen phosphate and diammonium hydrogen phosphate can be prevented to be generated by thermal decomposition3And H2O, urine
Element decomposes the NH generated when being heated3And CO2The oxygen concentration in scene of a fire region is diluted, reduces scene of a fire near combustible material
Oxygen concentration, make to stop burning when supporting that it burns away because not enough oxygen concentrations near combustible, simultaneously
Urea, ammonium dihydrogen phosphate and diammonium hydrogen phosphate can absorb heat when being thermally decomposed, so as to reduce the temperature in the scene of a fire, fire scene temperature
Reduction so that the reaction of ethylene glycol of the ignition temperature higher than urea, ammonium dihydrogen phosphate and diammonium hydrogen phosphate is delayed, ethylene glycol reaches
To the time lengthening of ignition temperature, while the reduction of oxygen concentration also further delays glycol reaction, reduces second two
The combustion-supporting effect of alcohol, the CO of the reaction generation of ethylene glycol2And H2The sprawlings for controlling the intensity of a fire of O further.
The present invention low temperature resistant water-based extinguishing agent be stored in water series fire-extinguisher, for putting out A, Type B fire, when timber,
When catching fire, the temperature in the scene of a fire is between 600-800 DEG C at this time, by the hose pair of water series fire-extinguisher for cotton, fiber crops or gasoline, kerosene
Quasi- firebase fire extinguishing, the knocking down step and principle of the low temperature resistant water-based extinguishing agent of the present invention are as follows：
(1) after each component in extinguishing chemical mixed liquor sprays in the fire extinguisher of high pressure, into the environment of atmospheric pressure, production
Raw foam enters the root of burning things which may cause a fire disaster along with each component of mixed liquor.
(2) mixed liquor forms moisture film on the surface of combustible, and foam coverage plays starvation on the surface of combustible
Effect.
(3) under conditions of 600-800 DEG C of the scene of a fire, each component in mixed liquor starts to warm up, when temperature 155 DEG C-
When in the range of 180 DEG C, the diammonium hydrogen phosphate in component, which starts to decompose at 155 DEG C, generates NH3And H2O, urea is in 160 DEG C of decomposition
For NH3And CO2, ammonium dihydrogen phosphate is in 180 DEG C of decomposition generation NH3And H2O, the NH that said components generate3And H2O will be near burning things which may cause a fire disaster
Oxygen dilution, while the temperature near burning things which may cause a fire disaster is reduced, prevent the further sprawling of the intensity of a fire, wherein NH3It is anti-at 650 DEG C
N should be generated2And H2O further functions as the effect of fire extinguishing.
When temperature reaches 380 DEG C, reach the ignition temperature of ethylene glycol, the ethylene glycol added in extinguishing chemical starts and surrounding
Oxygen reaction generate CO2And H2O, the CO that glycol reaction generates2And H2The effects for playing fire extinguishing of O further.
The extinguishing chemical items physical property performance and extinguishing chemical performance of the present embodiment can reach GB17835-2008 requirements.Through state
Family's fixed fire extinguishing system and the detection of fire retarding component Quality Supervision and Inspection Center, all technical are as follows：
Embodiment 2
Present embodiment discloses a kind of water-based extinguishing agent, the ingredient of water-based extinguishing agent includes biphosphate by weight percentage
Ammonium 7.5%, diammonium hydrogen phosphate 7.5%, disodium ethylene diamine tetraacetate 0.3%, urea 17%, ethylene glycol 25%, perfluoroalkyl sweet tea
Dish alkali 1%, alkyl glycosides 0.5%, water 41.2%.
It in the present embodiment, weighs the pure water of 41.2kg and is warming up to 60 DEG C, weigh 17kg urea, 7.5kg phosphoric acid respectively
Said components are added in the pure water after heating, stirred while adding by ammonium dihydrogen and 7.5kg diammonium hydrogen phosphates, rotating speed setting
In 600-800r/min, stirring obtains mixed liquor 1 after 120 minutes, and the ethylene glycol of 25kg is added in mixed liquor 1, stirs 40 points
Mixed liquor 2 is obtained after clock, perfluoroalkyl betain 1kg and alkyl glycosides 0.5kg is added in mixed liquor 2, stirring obtains for 40 minutes
To uniform mixed solution 3, the disodium ethylene diamine tetraacetate of 0.3kg is added in most backward mixed liquor 3, up to this after stirring evenly
The extinguishing chemical product of invention.
The extinguishing chemical items physical property performance and extinguishing chemical performance of the present embodiment can reach GB17835-2008 requirements.Through state
Family's fixed fire extinguishing system and the detection of fire retarding component Quality Supervision and Inspection Center, all technical are as follows：
Embodiment 3
Present embodiment discloses a kind of water-based extinguishing agent, the ingredient of water-based extinguishing agent includes biphosphate by weight percentage
Ammonium 5%, diammonium hydrogen phosphate 5%, disodium ethylene diamine tetraacetate 0.1%, urea 15%, ethylene glycol 20%, perfluoroalkyl betain
1%th, alkyl glycosides 1%, ethylenediamine tetraacetic methene sodium phosphate 0.5%, water 52.4%.
It in the present embodiment, weighs the pure water of 52.4kg and is warming up to 50 DEG C, weigh 17kg urea, 7.5kg phosphoric acid respectively
Said components are added in the pure water after heating, stirred while adding by ammonium dihydrogen and 7.5kg diammonium hydrogen phosphates, rotating speed setting
In 600-800r/min, stirring obtains mixed liquor 1 after 110 minutes, and the ethylene glycol of 20kg is added in mixed liquor 1, stirs 30 points
Mixed liquor 2 is obtained after clock, perfluoroalkyl betain 1kg and alkyl glycosides 1g is added in mixed liquor 2, stirring obtains for 30 minutes
Even mixed solution 3 adds in the disodium ethylene diamine tetraacetate of 0.1kg and 0.5kg ethylenediamine tetraacetic methene phosphorus in most backward mixed liquor 3
Sour sodium stirs evenly the rear extinguishing chemical product up to the present invention.
The extinguishing chemical items physical property performance and extinguishing chemical performance of the present embodiment can reach GB17835-2008 requirements.Through state
Family's fixed fire extinguishing system and the detection of fire retarding component Quality Supervision and Inspection Center, all technical are as follows：
Comparative example
It provides 6 schemes in this comparative example to be compared, this four schemes are respectively comparative example 1, comparative example 2, comparison
Example 3, comparative example 4, comparative example 5 and comparative example 6, only list these more representational examples herein, and the example above is equal
For the example in research process.
Comparative example 1：
As different from Example 1, the fire extinguishing agent prescription in comparative example 1 is added without disodium ethylene diamine tetraacetate.
Comparative example 2：
As different from Example 1, the fire extinguishing agent prescription in comparative example 2 is added without perfluoroalkyl betain.
Comparative example 3：
As different from Example 1, the content that the fire extinguishing agent prescription in comparative example 3 adds in perfluoroalkyl betain is 4%
Parts by weight.
Comparative example 4：
As different from Example 1, the content of the fire extinguishing agent prescription addition perfluoroalkyl betain in comparative example 4 is
0.5% parts by weight.
Comparative example 5：
As different from Example 1, hc-surfactant is added in the fire extinguishing agent prescription in comparative example 5 to substitute perfluor
Alkyl betaine, hc-surfactant are selected from lauryl sodium sulfate, imidazoline etc., specifically select dodecyl sulphate
Sodium, content are 1% parts by weight.
Comparative example 6
As different from Example 5, the content of lauryl sodium sulfate is 4% parts by weight.
The formula comparison of embodiment 1 and comparative example 1-4 see the table below：
The extinguishing chemical product of comparative example 1 and comparative example 2 is at low temperature environment (such as subzero 20 DEG C to subzero 40 DEG C environment)
During storage, the crystallization that fire extinguishing agent solution has ammonium salt is precipitated, and amount of precipitation increases with the increase of storage time, 1 He of comparative example
After the extinguishing chemical component of comparative example 2 is precipitated, the decline of extinguishing effect can be caused, after tested in subzero 35 DEG C of environment, comparison
The extinguishing effect of example 1 is 1A, 55B, and the extinguishing effect of comparative example 2 is 1A, 60B, it is impossible to reach the use for putting out 3A, 89B rank
Standard, if matched using said components, obtained extinguishing chemical when in face of the high-grade scene of a fire, it is difficult to effectively to its into
Row is put out.
After the formula of comparative example 3 and comparative example 4 adds in disodium ethylene diamine tetraacetate and perfluoroalkyl betain simultaneously, increase
Or the content of perfluoroalkyl betain is reduced, the amount of precipitation of ammonium dihydrogen phosphate and diammonium hydrogen phosphate is reduced, after tested subzero
In 35 DEG C of environment, the extinguishing effect of comparative example 3 is 2A, 60B, and the extinguishing effect of comparative example 4 is 2A, 66B.Equally, embodiment
Foam is generated in injection with the extinguishing chemical of comparative example, the ability of anti-burning of foam also changes, and is specifically shown in Table 2.
Table 2
As can be seen from Table 2, the fire resistanttime of the extinguishing chemical of embodiment 1 up to 86s, largest air bubbles are highly up to
29mm, the fire resistanttime of the extinguishing chemical of embodiment 1-3 are longer than the longest 76s of fire resistanttime in comparative example, largest air bubbles height
Also greater than largest air bubbles height 24mm in comparative example, embodiment 1-3 is by limiting disodium ethylene diamine tetraacetate and perfluoroalkyl sweet tea
The dosage of dish alkali realizes the optimization of fire resistanttime and largest air bubbles height, and then realize the promotion of extinguishing effect, using implementation
The extinguishing chemical of example 1-3 can reach the extinguishing effect of 3A, 89B.
After surfactant perfluoroalkyl betain is replaced with hc-surfactant in comparative example 5 and comparative example 6, together
The crystal that sample can cause extinguishing chemical that ammonium salt is precipitated in low-temperature storage leads to the reduction of extinguishing effect, aminocarboxylate and fluorine carbon
The addition of surfactant solves the consistency problem of each component in water-based extinguishing agent formula, makes extinguishing chemical obtained transparent clear
It is clear, it is not stratified, in addition, by extinguishing chemical filling in fire extinguisher in use, when extraneous environment temperature for subzero 25 DEG C to subzero
At 40 DEG C, due to water soluble salt of ammonia, solubility is low in the solvent of alcohol or ethers, and ammonium salt is easily precipitated at this time, when extinguishing chemical group
When being allocated as the solid or liquid used in high-temp combustion, hydrocarbon class surfactant since non-refractory easily loses activity, so as to
Easily cause the resume combustion of fire.After tested in subzero 35 DEG C of environment, the extinguishing effect of comparative example 5 is 2A, 70B, comparative example 6
Extinguishing effect for 2A, 80B, the extinguishing chemical component of 1-3 of the embodiment of the present invention is under subzero 25 DEG C to subzero 40 DEG C of environmental conditions
In use, aminocarboxylate and surfactant play collaboration, extinguishing chemical component will not be layered or is precipitated from extinguishing chemical
Crystal, while extinguishing chemical can be attached to the surface of combustible well, prevent the resume combustion of combustible, using going out for embodiment 1-3
Fiery agent can reach the extinguishing effect of 3A, 89B.
Obviously, the above embodiment of the invention be only to clearly illustrate example of the present invention, and not be
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.Here all embodiments can not be exhaustive.It is every to belong to this
The obvious changes or variations that the technical solution of invention is extended out are still in the row of protection scope of the present invention.
Claims (9)
1. a kind of water-based extinguishing agent, which is characterized in that the ingredient of the water-based extinguishing agent includes water soluble salt of ammonia, surface-active
Agent, urea, antifreeze, aminocarboxylate, foaming agent and water, wherein, by weight percentage, water soluble salt of ammonia 10-30%,
Urea is 15-20%, aminocarboxylate 0.1-0.5%, foaming agent 0.5-1%, water soluble salt of ammonia and surfactant
Weight ratio is 10:1-30:1, the weight ratio of urea and antifreeze is 1:1-1.5, surplus are water.
2. water-based extinguishing agent according to claim 1, which is characterized in that water soluble salt of ammonia and table in the water-based extinguishing agent
The weight ratio of face activating agent is 30:1, the weight ratio of urea and antifreeze is 1:1.5.
3. water-based extinguishing agent according to claim 1, which is characterized in that the water soluble salt of ammonia is ammonium dihydrogen phosphate and phosphorus
Sour two kinds of hydrogen diammonium.
4. water-based extinguishing agent according to claim 1, which is characterized in that the antifreeze is in ethylene glycol or glycerine
It is one or two kinds of.
5. water-based extinguishing agent according to claim 1, which is characterized in that the aminocarboxylate selects ethylenediamine tetra-acetic acid
One or more of disodium or tetrasodium ethylenediamine tetraacetate, five sodium of diethylenetriamine pentacarboxylic acid, nitrilotriacetic acid trisodium salt.
6. water-based extinguishing agent according to claim 1, which is characterized in that the surfactant is perfluoroalkyl beet
One kind in alkali, fluorinated alkyl sulfonate or perfluoroalkyl sulfuric acid ester salt.
7. water-based extinguishing agent according to claim 1, which is characterized in that the foaming agent is alkyl glycosides.
8. the preparation method of the water-based extinguishing agent described in any one of claim 1-7 claims, which is characterized in that it includes
Following steps：
Step 1：Pure water is warming up to 50-70 DEG C, weighs urea, water soluble salt of ammonia by weight respectively, and after adding in heating
Pure water in, stir while adding, stirring 110-130 minutes after obtain mixed liquor 1；
Step 2：Antifreeze is added in mixed liquor 1, stirring obtains mixed liquor 2 in 30-40 minutes；
Step 3：Surfactant and foaming agent are added in mixed liquor 2, stirring is uniformly mixed molten after 30-40 minutes
Liquid 3 adds in aminocarboxylate in most backward mixed liquor 3, up to water-based extinguishing agent after stirring evenly.
9. water-based extinguishing agent according to claim 1, which is characterized in that the water-based extinguishing agent can also add in corrosion inhibiter,
The corrosion inhibiter is organic phosphonate, and the addition of corrosion inhibiter is the 0.01-0.5% of extinguishing chemical formulation weight, wherein organic phosphine
One in hydrochlorate selection ethylenediamine tetraacetic methene sodium phosphate, five sodium of five sodium of diethylene triamine pentamethylene phosphonic or aminotrimethylene phosphate
Kind is several.
Priority Applications (1)
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| CN110448850A (en) * | 2019-08-16 | 2019-11-15 | 陕西胜捷瑞能消防科技有限公司 | A kind of low temperature concentrated type extinguishing chemical and its preparation method and application method |
| CN110465039A (en) * | 2019-08-26 | 2019-11-19 | 南京理工大学 | A kind of novel water-based extinguishing agent |
| CN110732110A (en) * | 2019-10-30 | 2020-01-31 | 陈东南 | Fire extinguishing water agent, preparation method thereof and fire extinguishing ball |
| WO2020084277A1 (en) * | 2018-10-22 | 2020-04-30 | Firexo Group Limited | Fire extinguishing composition |
| CN113663272A (en) * | 2021-09-04 | 2021-11-19 | 成都迪沃航空科技有限公司 | Novel fire extinguishing agent |
| CN113877127A (en) * | 2021-09-27 | 2022-01-04 | 捷润科技(广州)有限公司 | Fire extinguishing agent composition special for textile articles |
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| CN114796963A (en) * | 2022-03-28 | 2022-07-29 | 江苏筑磊电子科技有限公司 | Water-based extinguishing agent and preparation method thereof |
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| JP2022508910A (en) * | 2018-10-22 | 2022-01-19 | ファイアエックスオー・グループ・リミテッド | Fire extinguishing composition |
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| CN114618110A (en) * | 2020-12-10 | 2022-06-14 | 南京理工大学 | Water-based extinguishing agent for low-temperature environment |
| CN113663272A (en) * | 2021-09-04 | 2021-11-19 | 成都迪沃航空科技有限公司 | Novel fire extinguishing agent |
| CN113877127A (en) * | 2021-09-27 | 2022-01-04 | 捷润科技(广州)有限公司 | Fire extinguishing agent composition special for textile articles |
| CN114796963A (en) * | 2022-03-28 | 2022-07-29 | 江苏筑磊电子科技有限公司 | Water-based extinguishing agent and preparation method thereof |
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