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Insulating fire extinguishing agent for transformer high temperature oil fire and its application method

A high-temperature oil and transformer technology, applied in fire protection equipment and other directions, can solve the problems of high temperature oil fire of transformers that are difficult to extinguish and easy to reignite, and achieve the effects of slowing down the thermal decomposition rate, reducing flammability, and suppressing flames

Active Publication Date: 2021-11-02
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides an insulating fire extinguishing agent for transformer high-temperature oil fire and its application method to solve the technical problems that transformer high-temperature oil fire is difficult to extinguish and easy to recombust

Method used

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  • Insulating fire extinguishing agent for transformer high temperature oil fire and its application method
  • Insulating fire extinguishing agent for transformer high temperature oil fire and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A transformer high temperature oil fire oil insulation fire extinguishing agent, comprising the following components: 5kg YM-316, 40kg XP80, 15kg65HD50, 40kg water. The preparation method is first to mix YM-316 (Shanghai Yumu Chemical Co., Ltd.) 5kg, XP80 (Germany BASF) 40kg, 65HD50 (Nanjing Lihongde Trading Co., Ltd.) 15kg and water 40kg, and stir them evenly in a 200L glass stirring reactor. The mixture was obtained for 1 hour, i.e. Sample 1 was obtained.

Embodiment 5

[0063] A transformer oil fire fire extinguishing agent comprises the following components: 4kg FC-430 (US 3M Company), 30kg Surfynol 440 (US Air Chemicals), 25kg Aculyn 33 (Hanlin Chemical Co., Ltd.), 41kg water. Its preparation method is to firstly stir 4kg FC-430, 30kg Surfynol 440, 25kg Aculyn 33 and 41kg water in a 200L glass stirred reactor for 1 hour to obtain a mixture, that is, to obtain sample 5.

Embodiment 6

[0065] A transformer oil fire extinguishing agent, comprising the following components: 10kg Intechem-14-2A (Shanghai Yingzheng Technology Co., Ltd.), 20kg Helmol-10 (German Hamm), 20kg Cellosize QP15000H CGR (American Dow), 50kg water . Its preparation method is to first mix Intechem-14-2A 10kg, Helmol-10 20kg, Cellosize QP15000H CGR 20kg and water 50kg in a 200L glass stirred reactor for 1 hour to obtain a mixture, namely to obtain sample 6.

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Abstract

The invention discloses an insulating fire extinguishing agent for high-temperature oil fire of transformers and a method for using the same. The insulating fire extinguishing agent comprises the following components: 0.5% to 10% by weight of a strong surface expansion covering agent; The anti-high temperature evaporating agent; 5%-50% by weight water-in-oil anti-reburning agent; and 15-50% by weight water. When using, mix the fire extinguishing agent with water, the mixing ratio is 0.1%-6%, the diameter of the water mist droplet is 300-900μm, and the flow rate of the water mist droplet is 1.0-3.0L / m 2 Min of water mist for outdoor wind-resistant live fire extinguishing. The insulating fire extinguishing agent of the present invention has the characteristics of effectively penetrating deep into the interior of a high-temperature oil fire, quickly spreading and blocking oxygen to extinguish a fire, and forming an anti-recombustion barrier layer of transformer oil wrapped in a fire extinguishing agent, which can efficiently extinguish transformer oil fires and prevent recombustion. When in use, the appropriate droplet diameter and droplet flow rate can realize wind resistance and live fire extinguishing of outdoor transformers at the same time, and protect transformer fire safety.

Description

technical field [0001] The invention relates to the field of fire extinguishing for oil-immersed transformers, in particular to an insulating fire extinguishing agent for high-temperature oil fires in transformers and a use method thereof. Background technique [0002] Oil-immersed transformer fire has become a major disaster that threatens the safety of power supply. Ordinary oil-immersed power transformers contain nearly 100 tons of hydrocarbon mineral oil, and UHV converter transformers contain more than 100 tons of transformer oil. When a fault occurs, there is a risk of fire and explosion, and it may evolve into a catastrophic large-scale fire. For example, in June 2016, a fire broke out in a substation in the southern suburbs of Xi'an City, Shaanxi Province, causing multiple transformers to burn out, causing a load loss of 243,000 kilowatts and power outages to 86,500 households; A fire broke out due to a fault, causing multiple converters and the valve halls connect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00
CPCA62D1/0028
Inventor 陆佳政陈宝辉李波吴传平孙易成梁平潘碧宸
Owner STATE GRID HUNAN ELECTRIC POWER
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