LNG (Liquefied Natural Gas) explosion-proof gas supply control system of yacht

Abstract

An LNG (Liquefied Natural Gas) explosion-proof gas supply control system of a yacht comprises a gas supply device and a control device, wherein the gas supply device comprises an LNG storage bottle; a storage bottle safety circuit is arranged outside the LNG storage bottle; the storage bottle safety circuit is a circuit formed by serially connecting a supercharger, a main safety valve and a sub safety valve in sequence; the storage bottle safety circuit is connected with a control unit CPU (Central Processing Unit); the LNG storage bottle is connected with an engine of the yacht through a safety pipeline; a pipeline safety valve, a carburetor, a pipeline pressure regulating valve, a pressure stabilizing chamber and an electromagnetic valve are connected in series with the safety pipeline in sequence; the pipeline safety valve, the pipeline pressure regulating valve and the electromagnetic valve are all connected with the control unit CPU; and the control device comprises an embedded control assembly and an external control assembly. The LNG explosion-proof gas supply control system of the yacht, provided by the invention, has the advantages of simple and compact structure, safety and reliability in operation, convenience in operation and simplicity in maintenance.

Description

technical field [0001] The invention relates to an explosion-proof gas supply control system, in particular to a yacht LNG explosion-proof gas supply control system. Background technique [0002] With China's long-term high-speed economic growth, the demand for energy is also increasing. Projects of the century, such as the West-to-East Gas Transmission Project, the Sichuan-to-East Gas Transmission Project, and the introduction of Russian natural gas, show that natural gas, an important energy source characterized by high quality, cleanliness, and environmental protection, is receiving unprecedented attention from the Chinese government and is being used more and more widely. [0003] Although natural gas has many advantages, accidents often occur in the process of transportation, supply and use. At present, the accidents of LNG (liquefied natural gas) yachts are mainly spontaneous combustion or deflagration caused by gas supply pipeline leakage or short circuit. Most of t...

AI Technical Summary

Problems solved by technology

Most of the safety equipment of the existing yacht air supply system adopts an external structure, that is, when an accident occurs or a potential safety hazard is found, the valve can only be closed manually

When an accident occurs, there is often a situation where the operator cannot approach the valve and close it, and the work reliability is low, which will lead to the further development of the accident and cause serious consequences.

Although some LNG gas supply systems for vehicles now use safety valves, when the engine ignition switch is turned off or in a secondary position, and the engine ignition switch is still on, the valve is closed to prevent natural gas from flowing to the engine and prevent natural gas from leaking , but still needs to be strengthened in terms of reliability. If there is no alarm prompt device at the critical moment, and the safety solenoid valve does not automatically close, it will cause serious consequences.

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