Novel anti-explosion and fireproof plugging structure of converter station valve hall valve side sleeve hole

Abstract

The invention relates to a novel anti-explosion and fireproof plugging structure of a converter station valve hall valve side sleeve hole. The structure is characterized by comprising an anti-explosion plate layer, a stainless steel surface aluminum silicate composite plate layer, a dragon skeleton layer and a stainless steel surface rock wool composite plate layer. A high temperature deformationresistant metal surface layer is fixed on an inorganic fireproof core layer by stainless steel studs, deformation of a metal plate at high temperature is restricted, and the effects of fire resistance, smoke insulation and heat insulation are improved; stainless steel dovetail nails and fireproof sealant are used for sealed and closed edge coverage, edge coverage is performed regionally, so that the sealing performance is good, appearance is attractive, structural strength is high, and the magnetic shielding effect is good; a sleeve installation gap is subjected to multi-layer dense filling, structural strength of plugging is enhanced, the overall fireproof and smoke-proof performance of the plugging system are improved, and the overall fireproof performance is enhanced.

Description

technical field [0001] The invention relates to the technical field of bushing plugging on the side of a converter valve in a converter station, in particular to a novel anti-explosion and fireproof plugging structure for a hole in a bushing on the side of a valve hall of a converter valve. Background technique [0002] my country has built the world's largest direct current transmission system, and the valve hall of the converter station is the core of the system. The hole plugging of the valve side casing is a key component of the valve hall enclosure structure, and its reliability is an important guarantee for the safe operation of the valve hall. [0003] In a converter transformer fire accident, insulating oil (mineral oil) is the main combustible substance, and its flame is a hydrocarbon flame, which is characterized by high temperature and fast heating rate. The flame temperature can reach 1100°C after 20 minutes of combustion, which puts forward higher requirements ...

AI Technical Summary

Problems solved by technology

Although the above-mentioned patents have achieved the effect of fire prevention and explosion protection to a certain extent, the outer wall of the converter rheological casing and the side surface of the fireproof sealing plate are only sealed and connected through the ceramic silicon rubber sealing sleeve, and the fireproof sealing plate, silicon The acid aluminum needle-punched blanket layer and the outer wall of the rheological sleeve are integrally sealed, the sealing performance is poor, and the sealing strength is low, and the connection between the rheological sleeve and the fireproof blocking plate is only passed through a whole piece of aluminum silicate acupuncture. The blanket layer is separated, and the fire performance is poor, which leads to the reduction of the overall fire and explosion protection performance. In the fire of the transformer, the high temperature generated will cause the stainless steel panel to deform greatly, resulting in the deformation or separation of the original sealed connection, causing the fireworks to escape. increase security risks

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