Water-based fire extinguishing agent applicable to transformer grease fire

Abstract

The invention discloses a water-based fire extinguishing agent applicable to transformer grease fire, and belongs to the technical field of fire extinguishing. The water-based fire extinguishing agentcomprises, by weight, 0.1%-2% of a fluorocarbon surfactant, 1%-3% of a surface active betaine, 0.5%-2% of a corrosion inhibitor, 2%-4% of an antifreeze and the balance water. According to the water-based fire extinguishing agent applicable to transformer grease fire, the fluorocarbon surfactant and the surface active betaine are compounded into an emulsifier, transformer grease is emulsified, a stable sol system is rapidly formed, transformer oil droplets are isolated, combustion is prevented rapidly, and reignition is prevented; the corrosion inhibitor is added, a film can be self-assembledon the metal surface of a fire extinguishing device, and the effect of preventing corrosion of equipment or mitigating corrosion of equipment is achieved; the antifreeze is added, the application range of fire extinguishing agent is enlarged; and all the components are all non-ionic compounds, the insulation performance is excellent, the fire-extinguishing efficiency is high, the anti-reburning ability is high, application is safe and reliable, and the water-based fire extinguishing agent is free of toxicity and harmfulness and is quite suitable for extinguishing fire of transformers in transformer substations.

Description

technical field [0001] The invention belongs to the technical field of fire fighting and relates to a water system fire extinguishing agent suitable for transformer oil fires. Background technique [0002] There is always the risk of fire in oil-immersed power transformers. The internal arc caused by overvoltage, short circuit, etc. makes the oil temperature exceed the ignition point, and decomposes a variety of combustible gases. Once the internal overpressure causes the oil tank to burst and rupture, resulting in oxygen Entering, encountering an open flame can cause a fire and cause great harm. At present, the transformer fire extinguishing system mainly includes oil discharge nitrogen injection fire extinguishing device, foam fire extinguishing device, water spray fire extinguishing device. However, the fire extinguishing efficiency of the oil discharge and nitrogen injection fire extinguishing device is low, the cost is high, and there are misoperations. Once the misope...

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Problems solved by technology

However, the fire extinguishing efficiency of the oil discharge and nitrogen injection fire extinguishing device is low, the cost is high, and there are misoperations. Once the misoperation will cause serious damage to the main body of the transformer; the fire extinguishing efficiency of the foam fire extinguishing device is average, but the environmental pollution is serious; the fire extinguishing efficiency of the water spray fire extinguishing device Higher, but high water consumption, its fatal point is freezing below 0°C, it cannot be used in cold regions, which greatly limits its application range

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