Joint ring of special particulate filter for civil air defence

Abstract

The invention relates to a joint ring of a special particulate filter for civil air defence. The joint ring comprises a ring body which is molded integrally by welding right-angle edge in a circle; amount port is formed in the middle of the ring body; the ring body comprises a horizontal connecting ring and a vertical connecting ring which are molded integrally; fixing holes are formed in the side wall of the vertical connecting ring, and fasteners are arranged at the outer edge of the vertical connecting ring. The joint ring is molded reliably and free of burrs; besides, material cost is saved and processing reliability is improved by application of the joint ring.

Description

technical field [0001] The invention relates to a connection structure for a filter absorber, in particular to a joint ring for a filter absorber. Background technique [0002] Civil air defense engineering is a special underground building used in wartime and has protection requirements. The filter absorber used in civil air defense engineering needs to have a strong filtering effect, which can effectively filter air containing toxic gases and radioactive dust. In addition, bombs After the explosion, a huge shock wave will be generated. Although the residual pressure has become very small when the shock wave reaches the filter absorber, it will still cause damage to the fine filter inside the filter absorber, and a large amount of dust will easily cause the fine filter to block, reducing its service life. At present, the process of joint rings for filter absorbers is as follows: the whole plate is made by stamping, blanking, flanging, chamfering and other processes, and a ...

AI Technical Summary

Problems solved by technology

[0002] Civil air defense engineering is a special underground building used in wartime and has protection requirements. The filter absorber used in civil air defense engineering needs to have a strong filtering effect, which can effectively filter air containing toxic gases and radioactive dust. In addition, bombs After the explosion, a huge shock wave will be generated. Although the residual pressure has become very small when the shock wave reaches the filter absorber, it will still cause damage to the fine filter inside the filter absorber, and a large amount of dust will easily cause the fine filter to block, reducing its service life

At present, the process of joint rings for filter absorbers is as follows: the whole plate is made by stamping, blanking, flanging, chamfering and other processes, and a large area of ​​stamping surplus material in the middle of the plate is wasted, and the burrs during the stamping process are serious. It is cumbersome and has the potential safety hazard of scratching the operator

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