A locomotive double-pipe air supply system and its air supply pipe air supply monitoring method

Abstract

The invention discloses a locomotive double-pipe air supply system and its air supply pipe air supply monitoring method. The system includes an air source device, a main air joint pipe and an air supply pipe. Between the pipe and the air supply pipe, the first air supply passage and the second air supply passage are connected in parallel, the diameter of the first air supply passage is larger than the diameter of the second air supply passage, and the first air supply passage is provided with a first control valve , the second air supply channel is provided with a second control valve; a sensor that collects air supply pressure data and flow data of the air supply pipe; receives the data collected by the sensor, sends a prompt or alarm message, and controls the first control valve and the second The control unit that controls the opening and closing of the valve and the operation of the compressor; the display that displays the data collected by the sensor, the prompt alarm information sent by the control unit and the working status of the compressor. It can monitor the pressure and flow of the air supply pipe of the locomotive's double-pipe air supply system, optimize the working mode of the compressor, and avoid the safety hazard caused by abnormal air supply.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to a locomotive double-pipe air supply system and a method for monitoring the air supply of the air supply pipes. Background technique [0002] At present, rail transit has become an important part of people's daily travel, and its safety performance has gradually become a hot spot of concern. [0003] In recent years, with the development of vehicle technology, a large number of air-using equipment such as pneumatic doors, air springs and toilets have been used in railway passenger vehicles. In order to adapt to the increasing air volume of vehicles, a double-pipe air supply system has emerged as the times require. , The double-pipe air supply system includes a main air joint pipe and an air supply pipe. The main air joint pipe supplies the compressed air generated by the air source system to the air supply pipe, and then the air supply pipe supplies the air to the vehicle's air equipme...

AI Technical Summary

Problems solved by technology

However, at present, all locomotives, especially passenger locomotives, lack effective monitoring and management means for the air supply pipes, and the drivers cannot know the real-time wind usage status of the vehicles. Changes are too frequent and too fast, which brings safety hazards to driving

On the other hand, due to the increase in the air supply demand of vehicles, the compressors used by passenger locomotives have a large displacement. Once the number of rear-mounted vehicles decreases, the air supply demand will decrease. If the air supply demand cannot be effectively implemented according to the air supply demand The control of the compressor is very likely to cause the working rate of the selected large displacement compressor (that is, the ratio of the working time per unit time to the unit time) to be too low and cause oil emulsification.

[0004] Therefore, how to effectively monitor the pressure and flow of the air supply pipes of the locomotive dual-pipe air supply system, so as to avoid potential safety hazards caused by abnormal air supply, is currently a technical problem to be solved by those skilled in the art

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