Automatic drainage valve with fault detection function

Abstract

The invention provides an automatic drainage valve with a fault detection function. The automatic drainage valve with the fault detection function comprises a valve body component, a pressure switch and a heating rod device. According to a valve body assembly, unloading air of an air compressor is utilized for draining water, and the energy is saved; the closing and opening of the drainage valve are realized by controlling wind pressure and a spring, electric parts do not exist, and the reliability is good; and meanwhile, the heating rod device is arranged, a heating valve body is automatically started below 4 DEG C, the problem that the water cannot be drained due to icing of condensed water in the drainage valve in a low-temperature environment is solved. In addition, the pressure switchis arranged in a drainage channel, after water and wind pressure pass through the pressure switch, the pressure switch converts a pressure signal into an electric signal and transmits the electric signal to a locomotive microcomputer acquisition system, and a feedback function of a drainage signal is realized; and if drainage action does not occurs after the control wind is output, a locomotive microcomputer system cannot acquire the drainage signal to indicate the fault of the automatic drainage valve, and the fault detection function of the automatic drainage valve is realized.

Description

technical field [0001] The invention relates to an automatic drain valve for locomotives, which is a drainage and sewage device for railway locomotives, and aims to discharge condensed water, oil and other pollutant liquids from locomotive wind cylinders or air filters. Background technique [0002] At present, the automatic drain valve used by locomotives does not have a drainage signal feedback function, so that the control system of the locomotive cannot detect the working status of the automatic drain valve during the running process, and cannot perform fault detection and feedback on the drain valve, which increases the workload of use and maintenance. ; Therefore, the industry is in urgent need of an automatic drain valve with a fault detection function. Contents of the invention [0003] The purpose of the present invention is to solve the above problems, change the working mode of the drain valve, and provide an automatic drain valve with a fault detection function...

AI Technical Summary

Problems solved by technology

[0002] At present, the automatic drain valve used by locomotives does not have a drainage signal feedback function, so that the control system of the locomotive cannot detect the working status of the automatic drain valve during the running process, and cannot perform fault detection and feedback on the drain valve, which increases the workload of use and maintenance. ; Therefore, an automatic drain valve with fault detection function is urgently needed in the industry

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