Filter screen replacing device

Abstract

The embodiment of the invention provides a filter screen replacing device and relates to air filtering techniques. By the adoption of the filter screen replacing device, replacement of a filter screen can be completed automatically, and manpower resources and material resources are saved. The filter screen replacing device comprises a bearing piece. The bearing piece is of a sealed hollow columnar structure. A draught fan is arranged in the bearing piece. A first opening and a second opening are formed in the side wall of the bearing piece. The first opening is covered with a first filter screen. The second opening is covered with a second filter screen. The first filter screen is located on the air inlet side of the draught fan. The second filter screen is located on the air outlet side of the draught fan. First air inlets are formed in the side wall of the air inlet side and the side wall of the air outlet side correspondingly. A dust cover is arranged on the outer side of the first filter screen. The dust cover is provided with a sealing part, and the sealing part is in rotary sealing with the side wall. The filter screen replacing device further comprises a first driving part. The first driving part can drive the bearing piece to rotate around the central axis of the bearing piece by a preset angle, so that the first filter screen is made to rotate to the original position of the second filter screen. The filter screen replacing device is used for filtration of the draught fan.

Description

technical field [0001] The invention relates to air filtration technology, in particular to a filter screen replacement device. Background technique [0002] With the continuous advancement of science and technology, the high-precision manufacturing industry has become the pursuit of people. In order to produce more sophisticated products, the high-precision manufacturing industry has higher and higher requirements for the cleanliness of the manufacturing environment. Therefore, the manufacturing process of many high-precision products is completed in the clean room. In the prior art, the cleanliness of the clean room is generally achieved by filtering the air through the filter screen of the high-efficiency clean fan. The filter screen of the high-efficiency clean fan is usually composed of a primary filter, a medium filter and a high efficiency filter. The mesh is in direct contact with the air. After a period of use, it needs to be replaced and cleaned manually regularly...

AI Technical Summary

Problems solved by technology

In the prior art, the cleanliness of the clean room is generally achieved by filtering the air through the filter screen of the high-efficiency clean fan. The filter screen of the high-efficiency clean fan is usually composed of a primary filter, a medium filter and a high efficiency filter. The mesh is in direct contact with the air. After a period of use, it needs to be replaced and cleaned manually regularly. Otherwise, the filter will be blocked by dust, which will cause problems such as weakened ventilation, air circulation or reduced ventilation effect. However, regular artificial It takes a lot of manpower and material resources to replace the filter screen, and the fan needs to be turned off during the manual replacement process, which will affect the continuous operation of the ventilation system

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