Air source system multifunctional integrated prefilter and filtering method thereof

Abstract

The invention discloses an air source system multifunctional integrated prefilter and a filtering method thereof. The prefilter comprises a filter cylinder 1, a filter cylinder 2, an upper connection board and a lower connection board; an air inlet and an air outlet are respectively arranged at two sides of the upper connection board, airways are arranged in the upper connection board, the air inlet and the air outlet are communicated to the filter cylinder 1 and the filter cylinder 2 through the airways, so that after compressed air is introduced from the air inlet, the compressed air successively passes through the filter cylinder 1 and the filter cylinder 2, and then is discharged from the air outlet; storage chambers are arranged at bottom of an inner chamber of the filter cylinder 1 and the bottom of the inner chamber of the filter cylinder 2, a heating rod apparatus is arranged in the lower connection board, a draining valve apparatus and an electromagnetic control apparatus are arranged on the lower connection board, a drain is arranged in the lower connection board, the storage chambers are communicated to the draining valve through the drain, so that when the electromagnetic control apparatus controls the draining valve apparatus to an opening state, liquid water and liquid oil in the storage chambers successively pass through the drain and the draining valve apparatus in order, and then can be discharged.

Description

technical field [0001] The invention relates to a pre-filter in a modular locomotive air source system and a filtering method thereof, in particular to a multi-functional integrated pre-filter and a filtering method of the air source system. Background technique [0002] At present, the air source system at home and abroad is mainly composed of air compressors, air dryers and pre-filters connected through pipelines. The main purpose of the pre-filter is to remove oil and moisture in the compressed air and provide clean compressed air for rolling stock. However, the existing pre-filters generally have a multi-stage split structure with a complex structure, many connecting pipes, and there is a risk of air leakage, and each stage must be equipped with an automatic drainage device and a heating device, which increases the number of failure points and the manufacturing cost. cost. [0003] The Chinese invention patent with the publication number CN102632896A and the publicatio...

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Problems solved by technology

[0004] In the filtering device of the above-mentioned patent document, just adopted the two-stage filter of water removal filter and oil removal filter, and it is split structure, therefore, the connection pipeline between water removal filter and oil removal filter is many , there is a risk of air leakage; in addition, components such as sewage pipes, solenoid valves, and heating plates must be installed on the bottom of each filter, which increases failure points and manufacturing costs

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