Main transformer explosion fire extinguishing system pipe network explosion-proof device

Abstract

A main transformer explosion fire extinguishing system pipe network explosion-proof device comprises a side face sleeve explosion extinguishing system pipe network explosion-proof unit and a top sleeve explosion extinguishing system pipe network explosion-proof unit. The side face sleeve explosion extinguishing system pipe network explosion-proof unit is structurally composed of long stand columns (A1), explosion-proof beams (A2), explosion-proof supports (A3) and an explosion-proof steel net (A4). The top sleeve explosion extinguishing system pipe network explosion-proof unit is structurally composed of long stand columns (B1), explosion-proof beams (B2) fixed to the long stand columns (B1) and explosion-proof supports (B3) arranged between the explosion-proof beams (B2). The main transformer explosion fire extinguishing system pipe network explosion-proof device has the beneficial effects that the explosion-proof device is the essential protective facility of a transformer serious explosion fire extinguishing system pipe network, and can maximally protect the transformer extinguishing system pipe network against influence of transformer explosion and prevent explosion parts such as transformer sleeves, ascending flanged bases and flanges from harming the extinguishing system pipe network and electric equipment and even personnel in the explosion direction.

Description

technical field [0001] The invention belongs to substation fire-fighting facilities, and in particular relates to a technology for arranging an explosion-proof device for a pipe network of a main transformer oil explosion fire extinguishing system. Background technique [0002] For a long time, the fire protection design of the main transformer of the core equipment of the substation has mainly focused on the plane layout of each main transformer and the installation of a firewall to meet the fire protection distance requirements stipulated in the fire code. Drain the transformer oil in case of fire, and at the same time, install water spray, foam spray, dry powder, nitrogen injection and other fire extinguishing systems outside the transformer body to extinguish the fire. [0003] At 2:58 on October 4, 1978, a serious fire and explosion accident occurred in the No. 5 120,000 kVA transformer of a power plant in Zhenjiang, Jiangsu Province. A large amount of transformer oil w...

AI Technical Summary

Problems solved by technology

The transformer caught fire at 1:22 am on the 22nd. The fire brigade arrived at the substation fire scene at 2:25. At 5 o'clock in the morning, all the fires were extinguished. Afterwards, the transformer oil was basically burned out. After the fire brigade used fire truck water to extinguish the fire, a small amount of transformer oil was discharged outside the station through the road and site drainage system. pollute the surrounding environment

[0004] It can be seen from the above fire cases that when a moderate explosion fire occurs in the transformer, the transformer bushing and bushing riser only explode and spray oil. Destruction of the fire system pipe network will cause the fire extinguishing system to fail. Therefore, in order to ensure the normal use of the transformer fire extinguishing system, it is necessary to set up a complete explosion-proof device for the transformer explosion fire extinguishing system pipe network.

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