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Train pipe leakage searching method

A technology for train pipes and trains, applied in the direction of detecting the appearance of fluid at the leak point, testing of machine/structural components, instruments, etc., can solve the problem of long-term occupancy, the inability to quickly distinguish the train pipe air pipeline system and the brake cabinet Train piping system, leak finding and other issues

Pending Publication Date: 2021-03-02
GUANGZHOU ELECTRICAL LOCOMOTIVE
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Problems solved by technology

[0004] (1) The existing technology cannot quickly distinguish which part of the train pipe air pipeline system and the brake cabinet train pipeline system has a leak point;
[0005] (2) The existing technology needs to occupy a special leakage test bench for a long time, and it is not conducive to the maintenance department of the locomotive depot or the train pipe leakage search of the locomotive running on the normal line;

Method used

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Embodiment Construction

[0022] The present invention will be described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 , 2 As shown, the train pipeline system includes the train pipeline air pipeline system and the brake cabinet train pipeline system, the train pipe air pipeline system is connected to the brake cabinet train pipeline system through the BP pipe and the BPVV pipe

[0024] In the present invention, the train pipeline system is inflated to detect leakage points by utilizing inflatable tooling, the inflatable tooling includes an inflatable pipeline, a pressure regulating valve 2 arranged on the inflatable pipeline, an air gauge 4, a test port 3 for testing air pressure, The first cut-off plug door 1 arranged at the input end of the inflation pipeline and the second cut-off plug door 5 arranged at the output end of the inflation pipeline, the input end of the inflatable tooling is provided with a quick connector, the output end of th...

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Abstract

A train pipe leakage searching method comprises the steps that (1) a train pipe air pipeline system is separated from a brake cabinet train pipeline system; (2) one end of the train pipe air pipelinesystem is inflated through an inflation tool, the other end of the train pipe air pipeline system is blocked, and inflation is stopped after the interior of the train pipe air pipeline system reachesspecified air pressure; and (3) whether the train pipe air pipeline system leaks or not is judged, and it is judged that a brake cabinet train pipeline system leaks if the train pipe air pipeline system does not leak. By adopting the method, the train pipe leakage searching efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of train pipe leakage inspection and maintenance, in particular to a method for searching for train pipe leakage. Background technique [0002] When electric locomotives are newly built or overhauled, according to the technical requirements of China Railway Corporation "TJJW039-2014 Interim Technical Specifications for AC Drive Locomotive Microcomputer Control Air Braking System", system leakage requirements 6.3.1: when the train pipe is decompressed by 50kPa , cut off the supplementary air of the train pipe in the general wind direction, the leakage of the train pipe should not be greater than 10kPa / 5min; since our company undertook the repair of Harmony electric locomotives C5 and C6, during the test of the brake machine of the whole vehicle, many times encountered train Pipe leakage exceeds the standard, greatly increasing the vehicle test cycle, wasting a lot of time to find leaks. At the same time, the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/24G01M3/28
CPCG01M3/243G01M3/2815
Inventor 郝亮张心悦钱科娅
Owner GUANGZHOU ELECTRICAL LOCOMOTIVE
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