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Fuel mode switching system for double-fuel locomotive and switching method of fuel mode switching system

A dual-fuel locomotive and dual-fuel mode 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, and achieve the effects of avoiding explosion accidents, reliable operation, and improving safety

Active Publication Date: 2016-01-13
CRRC ZIYANG CO LTD
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  • Abstract
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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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  • Fuel mode switching system for double-fuel locomotive and switching method of fuel mode switching system

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Embodiment Construction

[0040] The dual-fuel locomotive of the present invention includes an engine, an engine EFI controller, and an LNG tank, and the switching system includes a liquid supply cut-off valve, a vaporizer, a safety valve, an intake solenoid valve, a release valve, a methane detection system, and a locomotive computer .

[0041] The LNG tank, the liquid supply cut-off valve, and the gasifier are connected in sequence through the LNG pipeline, and the safety valve of the gasifier, the intake solenoid valve, the relief valve, and the engine are connected in sequence through the methane gas pipeline.

[0042] The methane detection system includes a number of methane sensors distributed on the locomotive, and a methane detection host communicated with each methane sensor.

[0043] The locomotive microcomputer communicates with the engine EFI controller, the methane detection host, and the engine PLC.

[0044] The engine EFI controller is used to send the dual fuel enabling signal to the m...

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PUM

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Abstract

The invention provides a fuel mode switching system for a double-fuel locomotive and a switching method of the fuel mode switching system. The double-fuel locomotive comprises an engine, an engine electronic injection controller and an LNG tank. The switching system comprises a liquid supply cut-off valve, a gasifier, a safety valve, a gas inlet electromagnetic valve, a blow off valve, a methane detection system and a locomotive microcomputer. By means of the fuel mode switching system for the double-fuel locomotive and the switching method of the fuel mode switching system, safety guarantee control over the double-fuel locomotive is achieved, and safety of the mode switching of the double-fuel locomotive is improved to a great extent.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a dual-fuel locomotive fuel mode switching system and a switching method thereof. 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. The purpose of this control strategy is to detect and prevent LNG / CNG from being stored, gasified, and transmitted on LNG / CNG locomotives. Leakage during the process, so as to ensure that the locomotive can run normally and safely, and ensure the personal safety of drivers and passengers. Contents of the invention [0004] In order to solve the above proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02F02D41/00F02B77/08F02D19/06
CPCF02B77/08F02D19/06F02D41/00F02M21/02Y02T10/30
Inventor 韩笑邹浪平朱延东何娟孟玉发林远鹏刘立伟
Owner CRRC ZIYANG CO LTD
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