Air returning window for dust-free workshop

Abstract

The invention discloses an air returning window for a dust-free workshop. The air returning window comprises a bottom frame fixed on a building and an air returning shutter panel connected to the bottom frame in a matched mode; a filter device is arranged between the bottom frame and the air returning shutter panel and comprises a filter screen and a filter screen support frame, and a non-planar filter screen with folds is adopted as the filter screen; the inner walls of the periphery of the bottom frame are all provided with grooves, each groove comprises a first groove set, and first protrusion sets matched with the first groove sets are arranged at the periphery of the air returning panel. According to the shutter air returning window, the structure is compact, combination is firm, and the non-planar filter screen with the folds can increase the filter area, so that the filter effect is improved.

Description

technical field [0001] The invention relates to a return air window for a dust-free workshop. Background technique [0002] The return air outlet in clean rooms such as semiconductor workshops and operating rooms is generally composed of two parts, one is the bottom frame fixed on the building—such as the vertical wall panel or ceiling, and the other is the return air louver panel that covers and is positioned on the bottom frame , Install a filter screen between the bottom frame and the return air louver panel. The bottom frame is mostly fixed on the building by bolts or rivets. Due to the high environmental requirements inside the clean room, the return air louver panel and filter device must be cleaned and disinfected at regular intervals. However, the existing connection method between the return air louver panel, filter device and the bottom frame is inconvenient to disassemble , and frequent replacement operations are likely to cause damage to the connecting parts, a...

AI Technical Summary

Problems solved by technology

Due to the high environmental requirements inside the clean room, the return air louver panel and filter device must be cleaned and disinfected at regular intervals. However, the existing connection method between the return air louver panel, filter device and the bottom frame is inconvenient to disassemble , and frequent replacement operations are likely to cause damage to the connecting parts, and this damage is irreparable, which affects the use of the clean room. For some easy-to-remove return air windows, the connection is not stable enough, and the window is loose during use. Loud noise and short life

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