Draught fan intake air filtering system for air cooling permanent magnet motor

Abstract

The invention discloses a draught fan intake air filtering system for an air cooling permanent magnet motor. The draught fan intake air filtering system comprises a pre-filtering device, a bag type filter, a square tube and a square and round adapter plate; the pre-filtering device and the bag type filter are sequentially mounted at the air intake end of the square tube; the pre-filtering device is mounted at the air intake port of the square tube; the bag type filter is mounted in an air inlet of the square tube; the square and round adapter plate is welded to the air outlet of the square tube; and the bag type filter is fixedly mounted at the air inlet of the draught fan through the square tube and a square and round adapter plate. The draught fan intake air filtering system is mounted at the air inlet of the draught fan; when dust and water vapor in the environment are more, at first, the pre-filtering device is adopted to separate rainwater and water vapor or large-particle dust atthe front end, and then, the bag type filter is adopted to continuously filter the dust; the square and round adapter plate is connected with the draught fan; a rubber gasket is adopted for sealing to prevent foreign matters from entering; and a bolt is adopted for locking to facilitate changing and washing, so that dust and water vapor entering the permanent magnet motor are greatly reduced, andsteady and reliable operation of the draught fan intake air filtering system is ensured.

Description

technical field [0001] The invention relates to a fan inlet filter system for an air-cooled permanent magnet motor, in particular to an air inlet filter system for an air-cooled permanent magnet motor used in an environment with a lot of dust and water vapor. Background technique [0002] In recent years, with the continuous development of rare earth permanent magnet technology, permanent magnet synchronous motors have increasingly become ideal drive motors used in various modern industrial sectors. The permanent magnet synchronous motor can be used in conjunction with the frequency conversion speed control device. It has the advantages of excellent speed control performance, good energy saving effect, small maintenance, and wide application range. It has been widely used in household appliances, textiles, papermaking, printing, cement, coal, etc. , metallurgy and other industries. [0003] At present, permanent magnet motors generally adopt three methods of natural cooling...

AI Technical Summary

Problems solved by technology

When the external environment is harsh, if no filter design is made, the dust and water vapor in the air will be directly blown into the motor, which will cause the risk of water and mud accumulation inside the motor, delay the normal production activities, and cause property losses of users

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