Shell structure of denitration reaction device

Abstract

The invention provides a shell structure of a denitration reaction device. The structure includes four side wall assemblies and a top wall assembly; each side wall assembly includes an inner wall, anouter wall and a side wall hinging part, each inner wall is of a platy structure endurable to acid, alkali and high temperature, and each outer wall is high-intensity fiber cloth and is fixed onto theouter surface of the corresponding inner wall; the four side wall assemblies define a rectangular cylindrical structure; the top wall assembly comprises a top wall and top wall hinging parts arrangedon four side borders of the top wall, the top wall hinging parts are provided with hinging through holes, the side wall hinging parts of the upper side borders of the inner walls of the four side wall assemblies correspond the top wall hinging parts on the four side borders of the top wall respectively, and rotating shafts penetrate through the hinging through holes to make the top wall hinging parts which are positioned at the same straight line connected with the side wall hinging parts of the upper side borders of the inner walls. The shell structure of the denitration reaction device prevents debris of the inner walls from being exploded around when the denitration reaction device explodes, absorbs the gas energy generated by the explosion, and is convenient to disassemble and assemble.

Description

technical field [0001] The invention relates to the technical field of denitration reaction devices, in particular to a shell structure of a denitration reaction device. Background technique [0002] In the prior art, the shell structure of the denitrification reaction device is generally a welded steel structure, which can withstand earthquake load, smoke load, catalyst load and thermal stress. In the denitrification process, ammonia is usually used as the reducing agent of NOx, mixed with ammonia water and air and atomized through the nozzle, so that NOx and ammonia water can fully react, and the amount of ammonia escape is low; but when the catalyst is deactivated or the surface is covered or blocked by fly ash , or when the nozzle is blocked, the amount of ammonia escaping will increase, and ammonia water will easily volatilize into ammonia gas at high temperature. There is a great potential safety hazard in the denitrification reaction device. When an explosion occurs...

AI Technical Summary

Problems solved by technology

In the denitrification process, ammonia is usually used as the reducing agent of NOx, mixed with ammonia water and air and atomized through the nozzle, so that NOx and ammonia water can fully react, and the amount of ammonia escape is low; but when the catalyst is deactivated or the surface is covered or blocked by fly ash , or when the nozzle is blocked, the amount of ammonia escaping will increase, and ammonia water will easily volatilize into ammonia gas at high temperature. There are great safety hazards in the denitrification reaction device

When an explosion occurs in the denitrification reaction device with a welded steel structure, the rapidly rising air pressure will open the steel plate of the denitrification reaction device and explode to the surroundings. The exploded fragments will cause great damage to people or the entire flue gas treatment system

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