Filtering device for return air inlet of central air conditioning fan coil and installing method of filtering device

Abstract

The invention relates to a filtering device for a return air inlet of a central air conditioning fan coil and an installing method of the filtering device. The filtering device comprises an outer frame and a filtering assembly. The outer frame is connected to the indoor top wall and covers the return air inlet. A buckle plate is hinged to the inner side wall of the outer frame. A square installinghole for installing the filtering assembly is indented in the side, close to the return air inlet, of the buckle plate. The side, facing the lower side, of the buckle plate is provided with an air hole communicating with the square installing hole. The area of the air hole is smaller than the area of the square installing hole. The side, away from the rotary joint of the buckle plate and the outer frame, of the buckle plate is connected with a magnetic piece. The inner side wall of the square installing hole is provided with an attracting piece magnetically attracting the magnetic piece. Thefiltering device has the effect of conveniently installing, maintaining, replacing and cleaning the filtering assembly.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a filter device used for an air return port of a fan coil unit of a central air conditioner and an installation method thereof. Background technique [0002] At present, office buildings, hotels and other buildings often use central air-conditioning for heating and cooling due to their particularity. However, as air pollution becomes more and more serious, while central air-conditioning is popularized, air problems have also received attention. [0003] The Chinese patent with the existing authorized announcement number CN205481455U provides a kind of central air-conditioning air inlet air purification device, including air inlet pipe, the air inlet pipe is a transparent pipe, the left end of the air inlet pipe is provided with an air inlet, and the inside of the air inlet pipe is provided with In the air duct, the lower side wall of the air inlet pipe is equipped with a...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: since the air inlet of the central air conditioner is often located on the top of the room, the above-mentioned activated carbon mesh and decomposition mesh are all installed in the air inlet pipe, which is difficult to maintain and replace, so it needs to be improved

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