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Low-chloride AFFF ( aqueous film-forming foam) extinguishing agent

A foam fire extinguishing agent and foam stabilizer technology, applied in fire protection equipment and other directions, can solve the problems of storage tank corrosion, high corrosion, environmental pollution, etc., and achieve the effects of stabilizing foam performance, preventing re-ignition, and improving solubility

Inactive Publication Date: 2015-07-29
兴化市成顺消防科技研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the aqueous film-forming foam fire extinguishing agent products on the market, because the raw materials used contain a certain amount of chloride ions or other inorganic salts, the content of chloride ions in the products is higher than 1000ppm, which is highly corrosive, resulting in products Corrosion of the storage tank body occurs during the storage period, which leads to point leakage, which has a great impact on the use process, so there are higher requirements for storage containers; at the same time, it will also cause certain environmental pollution

Method used

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  • Low-chloride AFFF ( aqueous film-forming foam) extinguishing agent
  • Low-chloride AFFF ( aqueous film-forming foam) extinguishing agent
  • Low-chloride AFFF ( aqueous film-forming foam) extinguishing agent

Examples

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Embodiment 1

[0033] Embodiment 1 (6%AFFF product)

[0034] During the production of the low-chlorine aqueous film-forming foam fire extinguishing agent of this embodiment, 0.3 kg of sodium alginate and 80.7 kg of water were first added to the reaction kettle to fully stir and pre-dissolve at normal temperature and pressure, and then the alkyl sodium sulfate was weighed 2kg, polyoxyethylene fatty sodium sulfate 2kg, fatty alcohol polyoxyethylene ether 8kg, fluorinated alkyl betaine 2kg, ethylene glycol 2kg, urea 3kg, add to the reaction kettle and stir well to obtain about 100kg of low chlorine Aqueous film-forming foam fire extinguishing agent products.

Embodiment 2

[0036] During the production of the low-chlorine aqueous film-forming foam fire extinguishing agent of this embodiment, under normal temperature and pressure, first add 0.6 kg of sodium alginate and 69.4 kg of water into the reaction kettle to fully stir and pre-dissolve, and then weigh 3 kg of sodium alkyl sulfate , polyoxyethylene fatty sodium sulfate 3kg, fatty alcohol polyoxyethylene ether 12kg, fluorinated alkyl betaine 3kg, ethylene glycol 5kg, urea 4kg, add to the reaction kettle and stir well to obtain about 100kg of low chlorine water Film-forming foam fire extinguishing agent products.

Embodiment 3

[0037] Embodiment 3 (3%AFFF product)

[0038] During the production of the low-chlorine aqueous film-forming foam fire extinguishing agent of this embodiment, under normal temperature and pressure, first add 0.7kg of xanthan gum and 41.2kg of water into the reaction kettle to fully stir and pre-dissolve, and then weigh the sodium alkyl sulfate respectively 4kg, polyoxyethylene fatty sodium sulfate 4kg, fatty alcohol polyoxyethylene ether 16kg, fluorinated alkyl betaine 4kg, ethylene glycol 8kg, urea 4.5kg, add in the reactor and fully stir and mix, obtain about 100kg of low Chlorine water film-forming foam fire extinguishing agent products.

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Abstract

The invention relates to a low-chloride AFFF (aqueous film-forming foam) extinguishing agent. The low-chloride AFFF extinguishing agent comprises components in percentage by mass as follows: 12%-30% of a composite carbon-hydrogen surfactant, 2%-5% of a fluorocarbon surfactant, 0.1%-1% of a foam stabilizer, 1%-10% of an anti-freezing agent, 3%-5% of a solubilizer and the balance of water, wherein the composite carbon-hydrogen surfactant is composition of an anionic surfactant and a nonionic surfactant. The low-chloride AFFF extinguishing agent is an environment-friendly AFFF extinguishing agent with low chlorine content, and is mainly used for preventing and fighting hydrocarbon fires. The chlorine ion content of a product is very low, so that the corrosion rate of the product is very low, and corrosion to various storage containers is effectively reduced, so that the product is applicable to various storage containers and is particularly applicable to storage containers made of metal such as stainless steel and the like.

Description

technical field [0001] The invention relates to a foam fire extinguishing agent, in particular to an environment-friendly aqueous film-forming foam fire extinguishing agent with low chlorine content, and belongs to the technical field of fire-fighting consumables. Background technique [0002] Fire extinguishing agents are generally divided into foam fire extinguishing agents, dry powder fire extinguishing agents, etc., and 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. Foam fire extinguishing agent is an effective fire extinguishing agent for extinguishing flammable and combustible liquids. It mainly generates a condensed foam floating layer on the surface of the liquid to suffocate and cool. [0003] Aqueous film-forming foam fire extinguishing agent (AFFF for short) is a foam fire extinguishing agent that is based on hydrocarbon surfacta...

Claims

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Application Information

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IPC IPC(8): A62D1/02
CPCA62D1/0071
Inventor 潘德顺徐友萍王钧奇刘海泉
Owner 兴化市成顺消防科技研究院有限公司
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