Gas supply system part for liquefied natural gas vehicle

A technology for liquefied natural gas and gas supply system, which is applied in the field of gas supply system components, can solve the problems of reduced loading quality, reduced LNG density, and LNG waste, etc., and achieves the effect of increasing the continuation mileage and reducing the cost of building a station.

Inactive Publication Date: 2016-03-02
XIAN GERUIDE NEW CHEM MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the LNG pressure is set within the intake pressure range of the engine (generally 0.35MPa ~ 1.6Mpa) on the LNG filling station, the pressure at this time is very close to the safe take-off pressure set in the filling station. , the liquefied natural gas will be emptied soon, causing unnecessary waste of liquefied natural gas

Method used

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  • Gas supply system part for liquefied natural gas vehicle
  • Gas supply system part for liquefied natural gas vehicle
  • Gas supply system part for liquefied natural gas vehicle

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Embodiment Construction

[0015] In order to further illustrate the present invention, further describe below in conjunction with accompanying drawing:

[0016] Such as figure 1 As shown, a gas supply system component of a liquefied natural gas vehicle of the present invention: an outlet is provided on the vehicle-mounted liquefied natural gas cylinder 1, the outlet is connected to the manual shut-off valve 3 through the pipeline 2, and the manual shut-off valve 3 is connected to the stable valve through the pipeline 4 The pressure valve 5 is connected, the pressure stabilizing valve 5 is connected with the heat exchanger 7 through the pipeline 6, and the heat exchanger 7 is connected to the inner cavity of the vehicle-mounted liquefied natural gas cylinder through the pipeline 8.

[0017] Such as figure 2 As shown, the output pipeline 2 of LNG (pressure ≥ 0.1Mpa) under low pressure in the vehicle-mounted LNG cylinder 1 is connected to the manual shut-off valve 3, and the output pipeline 4 of the man...

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Abstract

The invention discloses a gas supply system part for a liquefied natural gas vehicle. The gas supply system part comprises a vehicle-mounted gas bottle for containing low-pressure liquefied natural gas. The gas supply system part is characterized in that a manual stop valve, a pressure stabilizing valve and a heat exchanger which are used for increasing the temperature of the liquefied natural gas and achieving heat exchange cycle are arranged outside the vehicle-mounted gas bottle for the liquefied natural gas; an outlet is further formed in the gas bottle for the liquefied natural gas, and the outlet, the manual stop valve, the pressure stabilizing valve and the heat exchanger are sequentially connected through pipelines; and the heat exchanger is further connected to an inner cavity of the gas bottle for the liquefied natural gas through a pipeline. More liquefied natural gas can be contained, the full charge endurance of the liquefied natural gas vehicle is increased, and meanwhile a liquefied natural gas station only needs to be designed and built according to the normal pressure; and the station building cost and the exhaust waste of the liquefied natural gas are reduced.

Description

technical field [0001] The invention relates to a gas supply system component of a liquefied natural gas vehicle. Background technique [0002] With the rapid development of our country's economy, our country's environmental pollution problem is becoming more and more serious. Among them, the main pollution source of the urban environment is the emission of vehicle exhaust. Experts believe that natural gas is one of the most ideal fuels to replace gasoline. Natural gas releases 20% less carbon dioxide than gasoline combustion, and has much lower toxic emissions. It is a clean vehicle fuel. [0003] Natural gas vehicles are divided into liquefied natural gas (LNG) vehicles and compressed natural gas (CNG) vehicles. For automobiles, to make the engine work normally, the workflow is described as follows: the natural liquefied gas factory supplies low-temperature liquefied natural gas (generally ≥ 0.1Mpa) to the liquefied natural gas filling station, and the liquefied natural ...

Claims

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Application Information

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IPC IPC(8): F02M21/02
CPCY02T10/30
Inventor 李小敏吴倩
Owner XIAN GERUIDE NEW CHEM MATERIALS CO LTD
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