A kind of chlorine-free water film-forming foam fire extinguishing agent and preparation method thereof

A foam fire extinguishing agent and film-forming technology, applied in fire prevention equipment, etc., can solve the problems of storage tank corrosion, high corrosion, environmental pollution, etc., and achieve low equipment corrosion, good recombustion resistance, and good spreading performance Effect

Active Publication Date: 2021-07-27
四川科宏达集团有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the aqueous film-forming foam fire extinguishing agent products on the market contain a certain amount of chloride ions in the raw materials used, so that the concentration of chloride ions in the product is greater than 1000ppm, which is highly corrosive, and causes the product to be damaged during storage. Corrosion of the tank body of the storage tank will cause point leakage, which will have a great impact on the use process, so there are higher requirements for the storage container; at the same time, it will also cause certain environmental pollution

Method used

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  • A kind of chlorine-free water film-forming foam fire extinguishing agent and preparation method thereof
  • A kind of chlorine-free water film-forming foam fire extinguishing agent and preparation method thereof
  • A kind of chlorine-free water film-forming foam fire extinguishing agent and preparation method thereof

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preparation example Construction

[0042] The present invention also provides a preparation method of the above-mentioned chlorine-free water film-forming foam fire extinguishing agent, comprising: after mixing the foam stabilizer with water, adding composite hydrocarbon surfactant, fluorocarbon surfactant, antifreeze and The solubilizers are mixed to obtain the chlorine-free water film-forming foam fire extinguishing agent.

[0043] Wherein, the present invention has no special limitation on the source of all raw materials. The composite hydrocarbon surfactant, fluorocarbon surfactant, foam stabilizer, antifreeze agent and solubilizer are all the same as above, and will not be repeated here.

[0044] The alkyl alcohol sulfate surfactant in the composite hydrocarbon surfactant of the present invention is the product produced with alkali neutralization after the alkanol alcohol is through sulfation; Glycoside surfactant adopts direct glycosidation method Production. The content of chloride ions in the raw mate...

Embodiment 1

[0050] Embodiment 1 (6%AFFF product)

[0051] Under normal temperature and pressure, first add 0.1kg of sodium alginate and 58.4kg of water into the reaction kettle to fully stir and pre-dissolve, then weigh long-chain alkyl alcohol sulfate (K 10 ) 25kg, short carbon chain alkyl alcohol sulfate (SOS) 5kg, alkyl glycoside (APG0814) 3kg, anionic fluorocarbon surfactant (FS-6201) 3.5kg, ethylene glycol 2kg, urea 3kg, add to the reaction kettle Thoroughly stir and mix to obtain about 100kg of chlorine-free aqueous film-forming foam fire extinguishing agent product.

Embodiment 2

[0053] Under normal temperature and pressure, first add 0.1kg of sodium alginate and 58.4kg of water into the reaction kettle to fully stir and pre-dissolve, then weigh long-chain alkyl alcohol sulfate (K 10 ) 5kg, short carbon chain alkyl alcohol sulfate (SOS) 25kg, alkyl glycoside (APG0814) 3kg, anionic fluorocarbon surfactant (FS-6201) 3.5kg, ethylene glycol 2kg, urea 3kg, add to the reaction kettle Thoroughly stir and mix to obtain about 100kg of chlorine-free aqueous film-forming foam fire extinguishing agent product.

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Abstract

The invention provides a chlorine-free aqueous film-forming foam fire extinguishing agent, which comprises: a compound hydrocarbon surfactant, a fluorocarbon surfactant, a foam stabilizer, an antifreeze agent, a solubilizer and the rest of water. The complex hydrocarbon surfactants include alkyl alcohol sulfates and glycoside surfactants; the alkyl alcohol sulfates include short carbon chain alkyl alcohol sulfates and long carbon chains with a mass ratio of 1:5 to 5:1. Alkanol Sulfate. Compared with the prior art, the present invention adopts the compounding of alkyl alcohol sulfates with different carbon chain lengths and glycoside surfactants as composite hydrocarbon surfactants, and then compounding with other components can produce rich and stable Foam, forms a layer of water film on the surface of various non-water-soluble flammable and flammable liquids, and has good spreading properties, can extinguish fire sources efficiently and quickly, and also has good anti-resurgence performance; and the The aqueous film-forming foam fire extinguishing agent does not contain chloride ions and has little corrosion on equipment.

Description

technical field [0001] The invention belongs to the technical field of fire extinguishing agents, in particular to a chlorine-free aqueous film-forming foam fire extinguishing agent and a preparation method thereof. Background technique [0002] Fire extinguishing agents are generally divided into foam fire extinguishing agents, dry powder fire extinguishing agents, etc. Among them, foam fire extinguishing agents are effective fire extinguishing agents for extinguishing flammable and combustible liquids. Foam fire extinguishing agents can be divided into aqueous film-forming foam fire extinguishing agents, chemical foam fire extinguishing agents and air foam fire extinguishing agents. [0003] Aqueous film-forming foam fire extinguishing agent (AFFF for short) is a foam fire extinguishing agent that is based on hydrocarbon surfactants and fluorocarbon surfactants and can form a layer of water film on the surface of certain hydrocarbon liquids. The water film can play a role...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/04
CPCA62D1/0071
Inventor 姚永毅姜会平王钧奇张豫红
Owner 四川科宏达集团有限责任公司
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