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Leak detection method for rail vehicle air pipeline system

A technology for air pipelines and rail vehicles, which is used in pipeline systems, gas/liquid distribution and storage, and liquid/vacuum measurement for liquid tightness. The effect of efficiency

Active Publication Date: 2020-02-14
CRRC TANGSHAN CO LTD
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  • Abstract
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Problems solved by technology

[0005] The invention provides a leak detection method for the air pipeline system of a rail vehicle to overcome the inaccurate problem of the existing detection method

Method used

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  • Leak detection method for rail vehicle air pipeline system
  • Leak detection method for rail vehicle air pipeline system

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Embodiment Construction

[0032] With the rapid development of electrified railway and electric locomotive technology, the structure, form and quality of rail vehicles have been greatly improved and improved. Among them, the air pipeline system is an important part of the vehicle, which is directly related to the locomotive. Safe to run. For example, the sealing of the brake pipeline system directly affects the braking performance. The poor sealing of the brake pipeline system makes the vehicle unable to brake and stop in time, the vehicle cannot release the brake when starting, and the driver cannot judge whether the vehicle brake system is normal or not. Run to get timely information and more. Therefore, it is necessary to test the sealing performance of the rail vehicle air duct system.

[0033] Generally, the rail vehicle air pipeline system includes a main air duct and a train air duct, on which a brake pipeline system, an air spring pipeline, a bow pipeline system, and a waste discharge pipeline...

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Abstract

The invention provides a leakage detecting method of a railway vehicle air pipeline system. The leakage detecting method comprises the following steps: control valves of a first branch pipeline and asecond branch pipeline are closed, an air pressure of a main air pipe is obtained, and leakage of the main air pipe is determined according to the air pressure; when the main air pipe dose not leak, the control valve on the first branch pipeline is opened, a first mixed air pressure of the first branch pipeline and the main air pipe is obtained, and leakage of the first branch pipeline is determined according to the first mixed air pressure; when the first branch pipeline dose not leak, the control valve on the first branch pipeline is closed, the control valve on the second branch pipeline isopened, a second mixed air pressure of the second branch pipeline and the main air pipe is obtained, and leakage of the second branch pipeline is determined according to the second mixed air pressure. The leakage detecting method of the railway vehicle air pipeline system detects tightness of the air pipeline system through branches, so that the tightness of each branch part can be accurately determined, and the detecting structure is accurate.

Description

technical field [0001] The invention relates to the technical field of pneumatic equipment testing, in particular to a leak detection method for an air pipeline system of a rail vehicle. Background technique [0002] With the rapid development of electrified railway and electric locomotive technology, the structure, form and quality of rail vehicles have been greatly improved and improved. Among them, the air pipeline system is an important part of the vehicle, which is directly related to the locomotive. Safe to run. For example, the sealing of the brake pipeline system directly affects the braking performance, and the poor sealing of the brake pipeline system makes the vehicle unable to brake and stop in time. Therefore, it is necessary to test the sealing performance of the rail vehicle air duct system. [0003] Generally, the rail vehicle air pipeline system includes a main air duct and a train air duct, on which a brake pipeline system, an air spring pipeline, a bow p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/28F17D5/02F17D5/00
CPCF17D5/005F17D5/02
Inventor 陈金彪刘刚董伟力李志国李艳秋苏全河张凤泉
Owner CRRC TANGSHAN CO LTD
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