A kind of transformer oil fire safety fire extinguishing agent and preparation method thereof

Abstract

The invention discloses a safe fire extinguishing agent for oil fire of a transformer. The safe fire extinguishing agent comprises the following components in percentage by mass: 0.1-10% of nonionic fluorine-containing surfactant, 5-50% of nonionic carbon hydrogen surfactant, 0.5-5% of nonionic organosilicon surfactant, 0.2-15% of nonionic emulsifying combustion turndown agent, 1-15% of nonionic solubilizer, 0.01-2% of nonionic corrosion inhibitor, and 15-50% of water. According to the fire extinguishing agent, the compounding benefits of a fluorine-containing alkylene oxide surfactant and three nonionic surfactants, namely, a fluorine-containing polyoxyethylene ether surfactant, an alkyl polyglucoside surfactant and a polyisloxane-polyether copolymer surfactant is utilized, so that the fire extinguishing performance is outstanding; in addition, the price is proper; the fire extinguishing agent is applicable to electric safe fire extinguishing for the oil fire of a high-voltage transformer, and particularly suitably used as a fine mist additive; the service life of the fire extinguishing agent is over eight years, and the fire extinguishing agent is hardly deteriorated and out of work.

Description

technical field [0001] The invention relates to a fire extinguishing agent used in a power transformer oil fire place, in particular to a transformer oil fire safety fire extinguishing agent and a preparation method thereof. Background technique [0002] Water-based fire extinguishing agents add some highly efficient fire extinguishing substances to water, and use water as a carrier to implement fire extinguishing by physical and chemical mechanisms. At present, the water-based fire extinguishing agents developed at home and abroad mainly include two categories: the first category is inorganic salt fire extinguishing agents, mainly alkali metal salts and alkaline earth metal salts, such as KCl, NaCO 3 , NaHCO 3 etc.; the second category is compounds that change the surface tension of water, mainly including fluorocarbon and hydrocarbon surfactants. Articles 6.6.4 and 7.13 of GB4351.1-2005 "Portable Fire Extinguishers Part 1: Performance and Structure Requirements" stipulat...

AI Technical Summary

Problems solved by technology

However, most of the additives in the water-based fire extinguishing agents developed at home and abroad have ion conductivity, and are not suitable for safe fire extinguishing with live electricity.

[0003] Looking at the relevant patents and documents at home and abroad, it is found that so far, there is a lack of water-based fire extinguishing agents with the ability to extinguish fires safely at home and abroad.

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