Automatic drainage device of rail vehicle air pipeline system

Abstract

The invention discloses an automatic drainage device of a rail vehicle air pipeline system. The automatic drainage device comprises a control unit, a control air source pipeline, a transition connecting flange, a filtering element, an automatic drainage valve and the like. The automatic drainage device can be synchronously started with an air compressor, the accumulated water of a main air reservoir can be automatically drained, the quality of air inside the rail vehicle air pipeline system can be improved, and the problems that due to the fact the accumulated water corrodes the pipeline, valve types are clamped and stagnated and other brake systems break down are solved. The automatic drainage valve comprises an automatic drainage functional assembly and a manual drainage functional assembly, the automatic drainage functional assembly is provided with a valve seat cavity, an automatic drainage piston and a compression reset spring are arranged inside a lower valve cover, and the up-and-down movement of the automatic drainage piston controls opening and closing of a valve port M of an upper half ball valve and a valve N of a lower half ball valve. Condensate water in an air pipeline and the main air reservoir can be drained in time, the condensate water in the rail vehicle air pipeline system is prevented from flowing into a brake device, and the driving safety of a rail vehicle in the process of applying and maintaining is guaranteed.

Description

technical field [0001] The invention relates to a drainage device for an air pipeline system of a locomotive, in particular to an automatic drainage device for the air pipeline system of rail transportation equipment such as railway rolling stock, EMU, light rail, and subway, and belongs to the application of rail transportation air pipeline system equipment field. [0002] Background technique [0003] Compressed air is the medium of the air pipeline system, and its quality directly affects the braking performance of the locomotive. In areas with humid climates such as the coast and the south, the moisture content in the air is high, resulting in overhumidity of the air in the main air cylinder and a large amount of condensed water. The system brings the potential for failure. In northern regions, harmful substances such as condensed water can easily corrode rubber parts. Long-term use, a large amount of water vapor condensate will accumulate in various air cylinders an...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an automatic drainage device for the air pipeline system of a rolling stock, in order to solve the disadvantage that the traditional manual cut-off type drainage plug cannot drain water in time, which can automatically drain the water in a timely, fast and efficient manner under the premise of ensuring the safety of the system. Discharge liquid substances such as condensed water or oil-water mixed emulsion, so as to effectively solve the problems in the above-mentioned prior art

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