Gas supply and heat preserving system of liquefied gas vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a gas supply and heat preserving system of a liquefied gas vehicle. The system comprises a gas storage tank provided with a filling valve and a gas outlet valve, the gas outlet valve is connected to an engine through a material supply pipe, the gas storage tank is installed in a heating box, a coil pipe which abuts againstthe gas storage tank is arranged in the heating box, the input-output end of the coil pipe is connected to a cooling water system of the engine, the material supply pipe penetrates a hollow sleeve, the gaps between the sleeve and the material supply pipe are sealed, and a water inlet-outlet end is arranged on the sleeve and connected to the cooling water system of the engine. According to the system, civil liquefied gas is adopted as fuel, so that energy is saved, and the environment is protected; moreover, the gas storage tank and the material supply pipe are heated by means of engine coolingwater so that full gasification can be guaranteed, residues in the gas storage tank are avoided, the gas supply capability of the system is improved, and fuel supply of the engine is guaranteed; moreover, exhaust gas emission is clean, by accessing a heating system, gas which enters the engine is heated to about 80 DEG C, and the size of the gas expands 1.2 times.

Description

Technical field: [0001] The invention relates to the technical field of automobiles, in particular to a gas supply heat preservation system for liquefied gas automobiles. Background technique: [0002] With the rapid development of China's economy, earth-shaking changes have taken place in various fields, especially the development of the automobile industry in the transportation industry is changing with each passing day. However, with the enhancement of people's awareness of environmental protection, the country has put forward higher and newer requirements for the energy use of the automobile industry. Among them, safety, environmental protection, high efficiency, energy saving, convenience and comfort have become important themes. Followed by new power vehicles came into being. Such as solar vehicles, electric vehicles, natural gas vehicles, liquefied petroleum gas vehicles, etc. emerge in endlessly. It has made contributions to reducing exhaust emissions and protecti...

AI Technical Summary

Problems solved by technology

Each vehicle (taxi industry) needs to add gas twice a day, which brings great inconvenience to daily use

[0006] 3. Liquefied Petroleum Gas Vehicles: At present, the fuel of liquefied petroleum gas for vehicles in the market is pure propane. The economic benefits, battery life and many other factors of this vehicle are superior to natural gas vehicles. According to the survey, there are few propane refueling in major and medium-sized cities across the country. station, so it brings great inconvenience to the use of the car, which seriously limits the development of this model

[0007] The gas storage tanks of existing liquefied petroleum gas vehicles or natural gas vehicles do not need heat preservation during gasification, and the gasification is good, while the liquefied gas of civil liquefied gas vehicles needs to absorb a large amount of heat during gasification, and its latent heat of gasification is large, so the gasification The gas tank is easy to freeze when in use, resulting in insufficient vaporization of the liquefied gas in the gas storage tank, which affects the gas supply of the engine

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