CN1193807C - Foam extingusher with covering function - Google Patents
Foam extingusher with covering function Download PDFInfo
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- CN1193807C CN1193807C CNB021358494A CN02135849A CN1193807C CN 1193807 C CN1193807 C CN 1193807C CN B021358494 A CNB021358494 A CN B021358494A CN 02135849 A CN02135849 A CN 02135849A CN 1193807 C CN1193807 C CN 1193807C
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Abstract
The present invention relates to a foam fire-extinguishing agent with a covering function, which is characterized in that the foam fire-extinguishing agent contains F1157N or F1203, F3 or OBS or FC-4, JR-400 or sodium alginate or CMC or HEC or cationic starch or chitosan or xanthan, CAB or LAB or MZL or K12 or APG, ethanediol butylether or propanediol butylether, glycol or diethylene glycol or glycerol, urea, a preservative agent and water in the weight ratio of 1 to 6:0.01 to 0.5:0.01 to 2.0:2 to 20:1 to 7:1 to 10:2 to 8:0.1 to 1:30 to 70. The foam fire-extinguishing agent of the present invention not only has preferable fire-extinguishing performance and afterburning preventing performance, but also has a strong coverage function; the foam fire-extinguishing agent not only can be extinguished and covered by low-expansion foam, but also be extinguished and covered by middle-expansion foam and high-expansion foam. Especially, the foam fire-extinguishing agent can effectively suppress the evaporation of petroleum products, the evaporation suppression rate of the petroleum products can reach more than 95% within numerous hours, and the foam fire-extinguishing agent has the positive action of reducing malignant accidents, such as fire, explosion, etc., which are caused by the leakage of the petroleum products, which is caused by accidents. The product has the advantages of simple production technology, low energy consumption, no generation of three waste and no environmental pollution in the process of production and practical application, and the biodegradation of each component can be carried out.
Description
Technical field
The present invention relates to a kind of fire foam, particularly relate to a kind of fire foam with covering function.
Technical background
Fire foam is used for fire-fighting fire extinguishing all report at home and abroad, and aqueous film-forming foam extinguishing agent (being called for short AFFF) is representative.The sixties, USN at first succeeded in developing this extinguishing chemical, to the flourishing country's extensive use of some industry of late nineteen seventies.This type of extinguishing chemical of domestic development is later, and the eighties is succeeded in developing first generation aqueous film-forming foam extinguishing agent by the Tianjin fire house.Constantly improve and raising through the scientific research personnel, present domestic aqueous film-forming foam extinguishing agent technology is mature on the whole, when this extinguishing chemical goes out the oils fire, on pasta, form water membrane, by the fire extinguishing of foam and moisture film double action, it have blow-off velocity fast, render a service high, closed performance is good, the storage life is long characteristics such as (20 years).So after succeeding in developing, promptly obtained development fast.But the foam that generates when its shortcoming is to use retention time on oil product is short, and foam can lose efficacy because of a large amount of bleeds, can not cover oil product and avoid evaporating, prevents poisonous and harmful, inflammable and explosive, Hazardous Chemical Substances leakage.As being used for the fire foam that fire-fighting fire extinguishing has covering function again, up to the present there is no report both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of fire foam with covering function, it can overcome
The above-mentioned shortcoming of prior art.
A kind of fire foam with covering function is characterized in that containing F1157N or F1203, F3 or OBS or FC-4, JR-400 or sodium alginate or CMC or HEC or cationic starch or shitosan or xanthans, CAB or LAB or MZL or K12 or APG, butyl glycol ether or propane diols butyl ether, ethylene glycol or diethylene glycol or glycerine, urea, formaldehyde or Sodium Benzoate and their part by weight scope of water is respectively 1-6: 0.01-0.5: 0.01-2.0: 1-7: 1-10: 2-8: 0.1-1 and 30-70.
A kind of preparation method with fire foam of covering function, it is characterized in that branch another name F1157N or F1203, butyl glycol ether or propane diols butyl ether, F3 or OBS or FC-4, CAB or LAB or MZL or K12 or APG composition mixture A, take by weighing JR-400 or sodium alginate or CMC or HEC or cationic starch or shitosan or xanthans, ethylene glycol or diethylene glycol or glycerine, urea, water again, composition mixture B, A is added among the B, stir, add formaldehyde or Sodium Benzoate at last, be stirred to and be clear solution, transfer PH to 7.5-8.5 with NaOH.
Fire foam of the present invention had both had extinguishing property and anti-resume combustion performance preferably, and powerful covering function is arranged again; Can put out a fire, cover with low-expansion foam, again can be with middle and high times of foam fire-fighting, covering.Particularly can suppress oil evaporation effectively, in a few hours, can reach more than 95% the oil evaporation inhibiting rate, for reducing since serious accidents such as the fire that the oil product that contingency causes leakage causes, blast have a positive effect.This product processes is simple, and energy consumption is low, and the no three wastes produce.Do not pollute the environment in production process and practical application, each component is all biodegradable.
The specific embodiment
Embodiment 1: take by weighing F1157N 3.0Kg, butyl glycol ether 6.0Kg, F3 0.2Kg, CAB 16.0Kg composition mixture A respectively, take by weighing sodium alginate 1.0Kg, ethylene glycol 5.0kg, urea 3.0Kg, water 65.0Kg again, composition mixture B, A is added among the B, stir, add anticorrisive agent formaldehyde 0.2Kg at last, be stirred to and be clear solution, transfer PH to 8.2, product promptly of the present invention with 10% NaOH.
F3 in the present embodiment can use OBS or FC-4 instead, and CAB can use LAB or MZL or K12 or APG instead, and sodium alginate can be used JR-400 or CMC or HEC or cationic starch or shitosan or xanthans instead, and ethylene glycol can be used diethylene glycol or glycerine instead.
Embodiment 2: take by weighing F1203 5.0Kg, propane diols butyl ether 3.0Kg, OBS 0.4Kg, LAB 10.0Kg respectively and form A, take by weighing JR-400 0.7Kg, glycerine 8.0Kg again, urea 5.0Kg, water 46.0Kg form B, A is added among the B, stir, add preservative sodium benzoate 0.6Kg at last, be stirred to and be clear solution, transfer PH to 8.5, add buffering with 10% NaOH
This product all reaches the GB17427-1998 requirement with water by every physical and chemical performance of the solution of 6: 94 ratio mixed preparing and extinguishing property.With this product 90 ° of volatility maximum are made fire-extinguishing test with gasoline.
The concrete technical indicator that reaches is as follows:
Project | Requirement | Actual measurement | |
PH value | 6.0-9.5 | 8.2 | |
Diffusion coefficient | ≥0 | 3.5 | |
Inhibiting rate % | Do not have | 98 | |
Low power | Coefficient of foaming | ≥5.0 | 8.0 |
Low power | 25% drainage time (min) | ≥2.5 | 4.5 |
Low power | Going out, gasoline fire time (min) is slow to be applied | ≤5.0 | 1.0 |
In doubly | Coefficient of foaming | ≥20 | 55 |
Used noun among the present invention: F1157N is the perfluoroalkyl betaine; F1203 is fluorocarbon surfactant and hc-surfactant compound; F3 is the hot sulfonyl quaternary ammonium salt of perfluor; OBS is the perfluoro alkoxy benzene sulfonic acid sodium salt; FC-4 is a perfluor polyoxypropylene quaternary ammonium iodide; CAB is a cocamidopropyl betaine; LAB is the dodecanamide propyl betaine; MZL is 1-ethoxy-1-carboxymethyl-alkyl imidazoline, and APG is an APG, and K12 is a lauryl sodium sulfate; JR-400 is a cation cellulose ether; CMC is a sodium carboxymethylcellulose, and HEC is a hydroxyethylcellulose, and cushioning liquid is potassium dihydrogen phosphate and sodium hydrogen phosphate mixed solution.
Claims (2)
1 one kinds of fire foams with covering function, it is characterized in that containing F1157N or F1203, F3 or OBS or FC-4, JR-400 or sodium alginate or CMC or HEC or cationic starch or shitosan or xanthans, CAB or LAB or MZL or K12 or APG, butyl glycol ether or propane diols butyl ether, ethylene glycol or diethylene glycol or glycerine, urea, formaldehyde or Sodium Benzoate and water, their part by weight scope is respectively 1-6: 0.01-0.5: 0.01-2.0: 2-20: 1-7: 1-10: 2-8: 0.1-1 and 30-70.
2 one kinds of preparation methods with fire foam of covering function, it is characterized in that branch another name F1157N or F1203, butyl glycol ether or propane diols butyl ether, F3 or OBS or FC-4, CAB or LAB or MZL or K12 or APG composition mixture A, take by weighing JR-400 or sodium alginate or CMC or HEC or cationic starch or shitosan or xanthans, ethylene glycol or diethylene glycol or glycerine, urea, water again, composition mixture B, A is added among the B, stir, add formaldehyde or Sodium Benzoate at last, be stirred to and be clear solution, transfer PH to 7.5-8.5 with NaOH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB021358494A CN1193807C (en) | 2002-12-04 | 2002-12-04 | Foam extingusher with covering function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNB021358494A CN1193807C (en) | 2002-12-04 | 2002-12-04 | Foam extingusher with covering function |
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CN1413749A CN1413749A (en) | 2003-04-30 |
CN1193807C true CN1193807C (en) | 2005-03-23 |
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CNB021358494A Expired - Fee Related CN1193807C (en) | 2002-12-04 | 2002-12-04 | Foam extingusher with covering function |
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2002
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