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A dual-fuel locomotive LNG tank liquid filling control system

A dual-fuel locomotive and control system technology, which is applied in the field of rail transit, can solve the problems of no dual-fuel locomotive safety assurance system control strategy technology, etc., and achieve the effect of improving operating safety and reliable operation

Active Publication Date: 2018-02-13
CRRC ZIYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The dual-fuel locomotive prototype manufactured by our company is the first locomotive powered by methane gas in China. At present, there is no relevant dual-fuel locomotive safety system control strategy technology at home and abroad.

Method used

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  • A dual-fuel locomotive LNG tank liquid filling control system

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Embodiment Construction

[0021] Such as figure 1 As shown, the present invention includes at least one filling solenoid valve connected to the LNG tank body through the LNG gas pipeline, a capacitive liquid level gauge arranged in the LNG tank, a pressure sensor, a liquid level sensor, a locomotive microcomputer, a filling button, a cut-off valve; the pressure sensor and the liquid level sensor are connected to the locomotive microcomputer; the capacitive liquid level gauge and the filling solenoid valve are connected to the locomotive microcomputer; the capacitive liquid level gauge is connected to the shut-off valve.

[0022] The filling button is used to control the filling of the LNG tank, and when the filling button is pressed, the locomotive microcomputer can control the filling solenoid valve to fill the LNG tank. The locomotive microcomputer controls the action of the liquid filling solenoid valve according to the liquid level signal and pressure signal in the LNG tank.

[0023] Preferably, t...

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PUM

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Abstract

The invention provides a liquid filling control system for an LNG tank of a dual-fuel locomotive. The control system comprises at least one liquid filling electromagnetic valve connected with the LNG tank through an LNG pipeline, a capacitive liquid level instrument arranged in the LNG tank, a pressure sensor, a liquid level sensor, a locomotive microcomputer, a liquid filling button and a stop valve; the locomotive microcomputer is connected with the pressure sensor and the liquid level sensor; the locomotive microcomputer controls on and off of the liquid filling electromagnetic valves; the capacitive liquid level instrument controls opening and closing of the stop valve through a hard wire; the LNG tank is connected with the stop valve through a methane gas pipeline. The liquid filling control system is used for performing safety guarantee control on liquid filling of the LNG tank, and therefore, the application safety of the dual-fuel locomotive is improved to an extremely large extent.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a dual-fuel locomotive LNG tank fluid filling control system. Background technique [0002] The dual-fuel locomotive prototype manufactured by our company is the first locomotive powered by methane gas in China. At present, there is no relevant dual-fuel locomotive safety assurance system control strategy technology at home and abroad. [0003] One of the fuels used by dual-fuel locomotives is highly flammable natural gas, so it is very necessary for the safety protection of locomotives. By detecting and preventing the leakage of LNG / CNG on LNG / CNG locomotives during storage, gasification, and transmission, Thereby ensuring that the locomotive can run normally and safely, and the personal safety of the drivers and passengers is guaranteed. Contents of the invention [0004] In order to solve the above problems, the present invention provides a dual-fuel locomo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C5/02F17C13/02F17C13/12
Inventor 韩笑邹浪平何娟陈长明朱延东刘军孟玉发
Owner CRRC ZIYANG CO LTD