Chemical defense filtering absorber

Abstract

The invention provides a chemical defense filtering absorber, and relates to the technical field of chemical defense equipment. The chemical defense filtering absorber comprises an air inlet diffusionport, a first frame body, a second frame body and an air outlet diffusion port which are sequentially arranged in an air flowing direction, and a first filter layer and a second filter layer are arranged in the first frame body and the second frame body respectively; th first frame body and the second frame body are detachably connected, and the opposite end walls of the two frame bodies are in butt joint; a clamping ring is fixedly connected to the outer wall of the first frame body; an inserting ring is fixedly connected to the outer wall of the second frame body; the inserting ring is designed to extend to the outer wall of the first frame body; when the end walls of the first frame body and the second frame body are in butt joint, the clamping ring is contacted with the end wall of the inserting ring, a first fastener used for fixing the clamping ring and the inserting ring is arranged between the clamping ring and the inserting ring, an annular sealing groove is formed in the endwall, right opposite to the inserting ring, of the clamping ring, and the end, close to the clamping ring, of the inserting ring is fixedly connected with a sealing ring which can be inserted into the sealing groove. The chemical defense filtering absorber has the beneficial effect that the first filter layer or the second filter layer can be conveniently and independently replaced.

Description

technical field [0001] The invention relates to the technical field of chemical prevention equipment, in particular to a chemical prevention filter absorber. Background technique [0002] In the construction of civil air defense projects, it is necessary to install filter absorbers, which can filter harmful substances in the air and release clean air. [0003] The Chinese patent whose notification number is CN201493025U discloses a kind of high-efficiency filter absorber used in civil air defense engineering, including a barrel, and the two sides of the barrel are provided with an air inlet and an air outlet, and the air inlet is fixedly installed. There is an explosion-proof plate, the explosion-proof plate is provided with holes, and a fine filter is provided on the inner side of the explosion-proof plate, and the fine filter includes a filter element, and the filter element is fixed in the barrel; one or more The poison filter unit includes an activated carbon layer and ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: when the filtering effect of the fine filter or the poison filtering unit is reduced, it is difficult to replace the fine filter or the poison filtering unit separately

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