CN104922848A - Composite additive for water mist fire suppression and preparation method and application method thereof - Google Patents
Composite additive for water mist fire suppression and preparation method and application method thereof Download PDFInfo
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- CN104922848A CN104922848A CN201510301706.6A CN201510301706A CN104922848A CN 104922848 A CN104922848 A CN 104922848A CN 201510301706 A CN201510301706 A CN 201510301706A CN 104922848 A CN104922848 A CN 104922848A
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- phosphate
- fire
- water
- compound additive
- potassium
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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
-
- 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)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a composite additive for water mist fire suppression. The composite additive comprises 1 wt% to 5 wt% of ferrous lactate, 2 wt% to 30 wt% of sylvite, 2 wt% to 30 wt% of phosphate and the balance water. The preparation method of the composite additive comprises the step that the ferrous lactate, the sylvite and the phosphate are sequentially dissolved into the water to obtain the composite additive. The application method of the composite additive comprises the steps that the composite additive and water are diluted according to the proportion of 1:2-1:30; and then a water mist generator is filled with the diluted solution which is sprayed to a fireground for fire extinction. The ferrous lactate, the sylvite and the phosphate in the composite additive have a good synergistic flame retardant effect, so that the fire extinction time is greatly shortened, and the fire extinction and inflaming retarding performance is more excellent.
Description
Technical field
The present invention relates to a kind of extinguishing chemical, particularly relate to a kind of compound additive for fine mist fire-fighting and preparation method thereof and using method.
Background technology
Water Mist Fire Extinguishing Technique is a kind of emerging high-effect fire-extinguishing technology, and it atomizes water into the water mists particle that diameter is 400 below mm, and the fire-fighting efficiency of water is promoted.Water Mist Fire Extinguishing Technique mainly relies on physical action fire extinguishing, is promoted the fire-fighting efficiency of water by the size reducing water droplet.Compared with traditional Water spray fire-fighting technique, the evaporation rate of water mists is faster, and evaporation efficiency is higher, and the latent heat of vaporization absorbed in evaporation process is larger, can effective cooling combustion reaction, accelerates blow-off velocity, promotes fire-fighting efficiency.The high density water mists particle barrier that water mists produces can interdict the radiant heat transmission of flame combustion, stops fire spreading.Meanwhile, the oxygen concentration around the effective dilute combustion thing of water vapor gas that water mists evaporation produces, suffocate combustion reaction, prevents intensity of a fire resume combustion.
For promoting the fire-fighting efficiency of water mists further, the Water Mist Fire Extinguishing Technique containing chemical addition agent receives the concern of people day by day.Water Mist Fire Extinguishing Technique containing additive refers to the chemical substance of having added high-effect fire-extinguishing fire retardation in water mists, by changing the chemical characteristic of water mists, make it not only possess physics fire extinguishing function, also have chemical flame retardant extinguishing mechanism, strengthen the extinguishing effect of water mists further.The flame-retarding fire-extinguishing mechanism of chemical addition agent is that water mists additive decomposes produces free radical mortifier, and such mortifier can flutter the free radical caught and produce in combustible combustion process, blocks combustion chemistry reaction, reaches the effect of extinguish combustion.
The chemical flame retardant class water mists additive developed now mainly contains transistion metal compound and alkali metal compound two class.Wherein transition metal salt mainly contains iron content (Fe) compound and contains manganese (Mn) compound two kinds, comprising Fe (CO)
5(carbonyl iron), Fe (C
5h
5)
2(ferrocene), C
5h
4cH
3mn (CO)
3(methyl cyclopentyl-dialkyl-tricarbon manganium), FeCl
2(frerrous chloride), FeCl
3(iron chloride) and MnCl
2(manganese chloride) etc.; Alkali metal compound is some sodium salts and sylvite mainly, as NaCO
3(sodium carbonate), NaCl(sodium chloride), C
3h
5naO
3(sodium lactate), KCl(potassium chloride) and K
2cO
3(potash).Wherein, the organic compound (Fe (CO) of Fe and Mn
5, Fe (C
5h
5)
2and C
5h
4cH
3mn (CO)
3though) flame retardant effect very excellent, but toxicity is comparatively large, is not suitable for application; Inorganic compound (FeCl in transition metal salt
2and FeCl
3though) toxicity little, but must under highly acid could stable existence (as the FeCl of 0.1mol/L
3start precipitation when pH=2.3, precipitated during pH=4.1), very high to the requirement of the equipment of use, be unfavorable for applying.Further, due to electrochemical corrosion effect, chloride (FeCl
2, FeCl
3and NaCl) general comparatively strong to corrosion of metal, require higher to the corrosion resistance of equipment.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides a kind of environmental friendliness and to low fine mist fire-fighting compound additive that can be applicable to the efficient and environment-friendly type stamped out a fire of equipment corrosion and preparation method thereof and using method.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is:
For a compound additive for fine mist fire-fighting, the component of described additive comprises the ferrous lactate of 1 wt% ~ 5 wt%, the sylvite of 2 wt% ~ 30 wt%, the phosphate of 2 wt% ~ 30 wt% and the water of surplus.
Above-mentioned compound additive, preferably, described sylvite is the mixing of one or more in potassium sulfate, potassium acid sulfate, potash, saleratus, potassium phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, potassium lactate, potassium citrate, potassium acetate, potassium sorbate.
Above-mentioned compound additive, preferably, described sylvite is that potassium sulfate is or/and potassium acid sulfate.
Above-mentioned compound additive, preferably, described phosphate is the mixing of one or more in ammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate (ADP).
Above-mentioned compound additive, preferably, described phosphate is ammonium dihydrogen phosphate (ADP).
The present invention also provides a kind of preparation method of above-mentioned compound additive: successively that ferrous lactate, sylvite, phosphate is water-soluble, namely obtains described compound additive, is then deposited in the airtight container of shading by the compound additive of preparation.
The present invention also provides a kind of using method of above-mentioned compound additive: by described compound additive and the water dilution proportion by 1:2 ~ 1:30, then filling is in fine water fog generator, sprays to the scene of a fire and puts out a fire.
Compared with prior art, the invention has the advantages that:
1) the present invention finds that ferrous lactate has good extinguishing property, is applied in fine mist fire-fighting compound additive simultaneously, shortens attack time, and fire extinguishing fire resistance is more excellent.
2) raw material components in compound additive of the present invention is low and environmentally friendly to equipment corrosion.
3) in compound additive of the present invention, ferrous lactate, sylvite and phosphate three have good cooperative flame retardant effect.Because the sylvite that the present invention selects is alkali metal salt, alkali metal salt decomposable asymmetric choice net produces alkali metal oxide or peroxide, and then the hydroxyl free radical that termination burning produces, and stops flame; Phosphate is mainly ammonium phosphate salt, and except decomposable asymmetric choice net produces ammonia, isolated air is fire-retardant, also can improve charring rate at condensed phase, stops the decomposition of polymer, makes combustion process suppressed in early days; Ferrous lactate suppresses efficiently because its lower reaction valence state has gas-phase combustion flame and extinguishes effect.
4) preparation method of compound additive of the present invention is simple, and technological process is short.
5) using method of compound additive of the present invention is very simple, and after only need diluting with water, filling is in fine water fog generator, can spray to the scene of a fire and put out a fire.
Detailed description of the invention
For the ease of understanding the present invention, hereafter will do to describe more comprehensively, meticulously to the present invention in conjunction with preferred embodiment, but protection scope of the present invention is not limited to following specific embodiment.
Unless otherwise defined, hereinafter used all technical terms are identical with the implication that those skilled in the art understand usually.The object of technical term used herein just in order to describe specific embodiment is not be intended to limit the scope of the invention.
Apart from special instruction, the various reagent used in the present invention, raw material are can commodity commercially or can by the obtained product of known method.
embodiment 1:
A compound additive for fine mist fire-fighting of the present invention, its raw material comprises 18 kg ferrous lactates, the potassium sulfate of 66 kg, the ammonium dihydrogen phosphate (ADP) of 66 kg and the water of 600kg.
The concrete preparation method of the compound additive for fine mist fire-fighting of the present embodiment is: the deionized water of 600kg is joined volume be 1000 liters be configured with in the solution reaction still of mixer, at room temperature 18 kg ferrous lactate solids are added in reactor, start mixer, after ferrous lactate dissolves completely, again the potassium sulfate of 66 kg is added in reactor, after potassium sulfate dissolves completely, then add the ammonium dihydrogen phosphate (ADP) of 66 kg, be mixed with the compound additive for fine mist fire-fighting.
The compound additive being used for fine mist fire-fighting prepared is left in the bottle of airtight, shading.Before fire extinguishing, compound additive is pressed the ratios with water dilution of 1:5, then filling is in electrodynamic type water mist fire extinguisher, can put out a fire.
embodiment 2:
A compound additive for fine mist fire-fighting of the present invention, its raw material comprises 18 kg ferrous lactates, the potassium acid sulfate of 66 kg, the ammonium dihydrogen phosphate (ADP) of 66 kg and the water of 600kg.
The concrete preparation method of the compound additive for fine mist fire-fighting of the present embodiment is: the deionized water of 600kg is joined volume be 1000 liters be configured with in the solution reaction still of mixer, at room temperature 18 kg ferrous lactate solids are added in reactor, start mixer, after ferrous lactate dissolves completely, again the potassium acid sulfate of 66 kg is added in reactor, after potassium acid sulfate dissolves completely, add the ammonium dihydrogen phosphate (ADP) of 66 kg again, be mixed with the compound additive for fine mist fire-fighting.
The compound additive being used for fine mist fire-fighting prepared is left in the bottle of airtight, shading.Before fire extinguishing, compound additive is pressed the ratios with water dilution of 1:5, then filling is in electrodynamic type water mist fire extinguisher, can put out a fire.
embodiment 3:
A compound additive for fine mist fire-fighting of the present invention, its raw material comprises 18 kg ferrous lactates, the potassium sulfate of 33 kg, the potassium acid sulfate of 33kg, the ammonium dihydrogen phosphate (ADP) of 66 kg and the water of 600kg.
The concrete preparation method of the compound additive for fine mist fire-fighting of the present embodiment is: the deionized water of 600kg is joined volume be 1000 liters be configured with in the solution reaction still of mixer, at room temperature 18 kg ferrous lactate solids are added in reactor, start mixer, after ferrous lactate dissolves completely, again the potassium sulfate of 33 kg and the potassium acid sulfate of 33kg are added in reactor, after potassium sulfate and potassium acid sulfate dissolve completely, add the ammonium dihydrogen phosphate (ADP) of 66 kg again, be mixed with the compound additive for fine mist fire-fighting.
The compound additive being used for fine mist fire-fighting prepared is left in the bottle of airtight, shading.Before fire extinguishing, compound additive is pressed the ratios with water dilution of 1:5, then filling is in electrodynamic type water mist fire extinguisher, can put out a fire.
comparative example 1:
The difference of the raw material for fine spray extinguishment additive agent that this comparative example uses and embodiment 1 is that the difference of its preparation method and embodiment is the operating procedure of not adding 18kg ferrous lactate, and other operating procedure is identical not containing 18kg ferrous lactate.Using method is identical with embodiment 1.
comparative example 2:
This comparative example adopts the water of 18 kg ferrous lactates and 600kg to be hybridly prepared into extinguishment additive agent, and using method is identical with embodiment 1.
To be used as fine spray extinguishment additive agent and water in embodiment 1, embodiment 2, embodiment 3, comparative example 1 and comparative example 2 by 1:5 dilution proportion, category-A fire fire-extinguishing test is carried out in filling in electrodynamic type water mist fire extinguisher.Comburant adopts the grillage being followed closely system by the seasoned wood block of equivalent specifications, and the size of seasoned wood block is 500mm × 40mm × 40mm.Totally six layers, the grillage of nail system, every layer of six roots of sensation, uses 36 seasoned wood blocks altogether.The weight of grillage precombustion 50% before fire-extinguishing test, the time is about 5 minutes, and the aqueous solution then adopting embodiment 1, embodiment 2, embodiment 3, comparative example 1 and comparative example 2 compound additive to prepare is put out a fire respectively.Fire-extinguishing test result is as shown in table 1.Can go out from table 1, the attack time of the compound additive of embodiment 1, embodiment 2 and embodiment 3 preparation is short, good extinguishing effect.Therefore, high-efficiency environment friendly anti-corrosive properties fine spray extinguishment additive agent of the present invention has very strong extinguishing ability, is suitable for applying.
Table 1. fire-extinguishing test result
| Compound additive | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 |
| Attack time/second | 28 | 29 | 27 | 38 | 51 |
comparative example 3:
This comparative example adopts ferrous lactate, 3. the 2wt % potassium sulfate of 1. water, 2. 1 wt % and 2wt % ammonium dihydrogen phosphate (ADP), 4. 2wt % potassium sulfate respectively, the compound additive of ferrous lactate of 2wt % ammonium dihydrogen phosphate (ADP) and 1wt % adopts identical method to put out a fire to identical fire heap, and extinguishing effect is as shown in table 2.
The contrast of table 2. extinguishing property
| Experiment sequence number | Additive | Attack time (category-A Wood crib Fire, second) |
| 1 | Water | 60 |
| 2 | Ferrous lactate | 45 |
| 3 | Potassium sulfate, ammonium dihydrogen phosphate (ADP) | 41 |
| 4 | Potassium sulfate, ammonium dihydrogen phosphate (ADP), ferrous lactate | 31 |
From the contrast fire-extinguishing test result of table 2, the extinguishing ability of the compound additive for fine mist fire-fighting of the present invention all exceeds much relative to the extinguishing ability of ferrous lactate fire extinguishing, sylvite and phosphate complexing agent, and extinguishing property is the most excellent.
Claims (7)
1. for a compound additive for fine mist fire-fighting, it is characterized in that, the component of described additive comprises the ferrous lactate of 1 wt% ~ 5 wt%, the sylvite of 2 wt% ~ 30 wt%, the phosphate of 2 wt% ~ 30 wt% and the water of surplus.
2. compound additive as claimed in claim 1, it is characterized in that, described sylvite is the mixing of one or more in potassium sulfate, potassium acid sulfate, potash, saleratus, potassium phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, potassium lactate, potassium citrate, potassium acetate, potassium sorbate.
3. compound additive as claimed in claim 2, it is characterized in that, described sylvite is that potassium sulfate is or/and potassium acid sulfate.
4. compound additive as claimed in claim 1, it is characterized in that, described phosphate is the mixing of one or more in ammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate (ADP).
5. compound additive as claimed in claim 4, it is characterized in that, described phosphate is ammonium dihydrogen phosphate (ADP).
6. a preparation method for the compound additive as described in any one of Claims 1 to 5, is characterized in that, successively that ferrous lactate, sylvite, phosphate is water-soluble, namely obtains described compound additive.
7. a using method for the compound additive as described in any one of Claims 1 to 5, is characterized in that, described compound additive and water is pressed the dilution proportion of 1:2 ~ 1:30, and then filling is in fine water fog generator, sprays to the scene of a fire and puts out a fire.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301706.6A CN104922848B (en) | 2015-06-05 | 2015-06-05 | A kind of compound additive for fine mist fire-fighting and preparation method thereof and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301706.6A CN104922848B (en) | 2015-06-05 | 2015-06-05 | A kind of compound additive for fine mist fire-fighting and preparation method thereof and using method |
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| Publication Number | Publication Date |
|---|---|
| CN104922848A true CN104922848A (en) | 2015-09-23 |
| CN104922848B CN104922848B (en) | 2016-04-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421201A (en) * | 2018-05-22 | 2018-08-21 | 公安部四川消防研究所 | A kind of fine spray extinguishment additive agent and its preparation method and application |
| CN110433442A (en) * | 2019-07-17 | 2019-11-12 | 湖南省湘电试研技术有限公司 | A kind of vaporization prevention high-efficiency fire-extinguishant for helicopter fire extinguishing |
| CN114652983A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Water mist and foam coupling thermal protection system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0771228A (en) * | 1993-08-31 | 1995-03-14 | Mitsubishi Motors Corp | Exhaust particulate purifying device |
| CN102029040A (en) * | 2010-11-29 | 2011-04-27 | 北京航空航天大学 | Complex additive used for extinguishment with water mist |
| CN102657924A (en) * | 2012-04-12 | 2012-09-12 | 中国科学技术大学苏州研究院 | Novel water mist additive and its preparation method |
-
2015
- 2015-06-05 CN CN201510301706.6A patent/CN104922848B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0771228A (en) * | 1993-08-31 | 1995-03-14 | Mitsubishi Motors Corp | Exhaust particulate purifying device |
| CN102029040A (en) * | 2010-11-29 | 2011-04-27 | 北京航空航天大学 | Complex additive used for extinguishment with water mist |
| CN102657924A (en) * | 2012-04-12 | 2012-09-12 | 中国科学技术大学苏州研究院 | Novel water mist additive and its preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421201A (en) * | 2018-05-22 | 2018-08-21 | 公安部四川消防研究所 | A kind of fine spray extinguishment additive agent and its preparation method and application |
| CN110433442A (en) * | 2019-07-17 | 2019-11-12 | 湖南省湘电试研技术有限公司 | A kind of vaporization prevention high-efficiency fire-extinguishant for helicopter fire extinguishing |
| CN114652983A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Water mist and foam coupling thermal protection system |
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| Publication number | Publication date |
|---|---|
| CN104922848B (en) | 2016-04-20 |
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