Vacuum feces-collection device leakage detector for railway vehicle, and application of vacuum feces-collection device leakage detector

Abstract

The invention discloses a vacuum feces-collection device leakage detector for a railway vehicle, and the leakage detector is in airtight connection with an output port of a blow-down valve, so as to detect whether the blow-down valve is leaked or not. The leakage detector comprises a connection seat, and an air pressure meter connected to the connection seat. The connection seat is used for airtight connection with the output port of the blow-down valve, and the air pressure meter is used for displaying the air pressure of the output port of the blow-down valve sealed by the connection seat. The invention also discloses a quick leakage detection method for a leakage fault of a vacuum feces-collection device of the railway vehicle. The method comprises the specific steps: firstly inspecting the blow-down valve on a sewage tank; secondly inspecting other parts of a vacuum system in the vacuum feces-collection device after the blow-down valve is determined to have no leakage. The detector and method can determine the causes of 90% (or more) of leakage faults of the vacuum feces-collection device visually and quickly in real time, thereby improving the inspection efficiency of the leakage faults, and reducing the labor intensity of a maintainer.

Description

technical field [0001] The invention relates to a leak detector for detecting whether there is leakage in a vacuum feces collection device on a railway vehicle, and a method for quickly troubleshooting the leakage fault of the vacuum feces collection device. Background technique [0002] With the renewal of technology, more and more vacuum collection devices are used on railway vehicles. As the special vacuum disclosed in the publication number CN104029691A Chinese invention patent application, even the sewage treatment system. Because the vacuum negative pressure is used to suck the dirt in the toilet into its dirt box when the vacuum stool collection device is working, therefore, maintaining the set vacuum degree in the dirt box is the prerequisite for the vacuum stool collection device to work normally. premise. [0003] Since the vacuum system in the vacuum defecation collection device involves many links such as the dirt tank, air-water control device, connecting pipe...

AI Technical Summary

Problems solved by technology

[0003] Since the vacuum system in the vacuum defecation collection device involves many links such as the dirt tank, air-water control device, connecting pipes, control valves, vacuum generators, etc., once the vacuum defecation collection device cannot work normally due to leakage, the maintenance personnel will need to spend one or two Check the entire vacuum system in an hour to find the leak point. Therefore, for the solution of the leakage fault of the vacuum stool collection device, the existing technology has the problems of heavy workload, long time and low efficiency.

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