A multifunctional integrated pre-filter for air source system and its filtering method

Abstract

The invention discloses a multifunctional integrated pre-filter of an air source system and a filtering method thereof. The pre-filter includes a filter cartridge one, a filter cartridge two, an upper connecting plate and a lower connecting plate, and an air inlet and an air outlet are respectively arranged On both sides of the upper connecting plate, there is also an air channel inside the upper connecting plate, and the air inlet and the air outlet are connected together with the filter cartridge 1 and the filter cartridge 2 through the air channel, so that after the compressed air enters from the air inlet, it can After passing through filter cartridge 1 and filter cartridge 2 in turn, it is discharged through the air outlet; storage chambers are provided at the bottom of the inner cavity of filter cartridge 1 and filter cartridge 2, and a heating rod device is installed inside the lower connecting plate. There is a drain valve device and an electromagnetic control device, and a drainage channel is arranged inside the lower connecting plate, and the storage chamber communicates with the drain valve device through the drain channel, so that when the electromagnetic control device controls the drain valve device to open, the liquid water in the storage chamber and the The liquid oil can be discharged sequentially through the drain channel and the drain valve device.

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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