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L-CNG gas station

A gas filling station and natural gas technology, applied in the field of L-CNG gas filling stations, can solve the problems of low equipment utilization and few functions, and achieve the effect of reducing equipment investment and saving the secondary pressurization process

Inactive Publication Date: 2015-11-04
沈军
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AI Technical Summary

Problems solved by technology

[0002] Existing L-CNG refueling stations only refuel two types of LNG (liquid) and CNG (gaseous) vehicles in natural gas fueled vehicles, with few functions and low equipment utilization. With the popularization of LNG and CNG vehicles, We need to continue research and development, and constantly adapt to the development needs of the new era

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0097] For the process flow of the overall technical plan, see figure 2

[0098] Technical solutions:

[0099] An L-CNG gas filling station is composed of a storage tank, a cryogenic submersible pump, a cryogenic plunger pump, a high-pressure vaporizer, a gas filling column, valves and pipelines, wherein the liquid phase of the cryogenic submersible pump and the cryogenic plunger pump The gas phase port and the gas phase port are independently connected to the storage tank. The low-temperature submersible pump circulation and continuous unloading method are used to transport the LNG tanker to meet the continuous pressurization and vaporization of the plunger pump into CNG. Its technical characteristics are: connected after the high-pressure vaporizer There is a gas filling column to fill the trailer of the vehicle-mounted gas cylinder group with CNG, and the pressure sensor on the gas-filling column is used to control the pressure of filling the trailer of the vehicle-mounted...

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Abstract

The invention discloses an L-CNG filling station. The L-CNG filling station is composed of a storage tank, a low-temperature immersed pump, a low-temperature plunger pump, a high-pressure vaporizer, filling equipment, a valve and a pipeline, and is technically characterized in that the pipeline with the valve is connected behind the high-pressure vaporizer in parallel and connected with the filling equipment, and a high-pressure natural gas is filled for vehicle-mounted gas cylinder group trailers through the opening and the closing of the valve, and the pressure signal of a pressure sensor of the filling equipment. The L-CNG filling station disclosed by the invention is capable of filling gas for LNG automobiles, filling gas for CNG automobiles and filling gas for CNG vehicle-mounted gas cylinder group trailers, is the most complete in function without example, and is capable of filling gas for the CNG vehicle-mounted gas cylinder group trailers with two pressures of 20MPa and 25MPa.

Description

technical field [0001] The invention relates to an L-CNG (in Chinese, it means that liquid natural gas LNG is pressurized and vaporized into high-pressure gaseous natural gas CNG by a plunger pump in Chinese) gas filling station (including a gasification station), which belongs to the field of natural gas vehicle energy infrastructure supporting facilities. Background technique [0002] Existing L-CNG refueling stations only refuel two types of LNG (liquid) and CNG (gaseous) vehicles in natural gas fueled vehicles, with few functions and low equipment utilization. With the popularization of LNG and CNG vehicles, We need to continue research and development, and constantly adapt to the development needs of the new era. Contents of the invention [0003] Existing L-CNG gas filling stations can only be filled within the rated pressure of 20MPa for CNG automobile gas cylinders fueled by natural gas. For gas cylinders on natural gas fueled vehicles, the volume of the gas cylin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/06F17D1/02
Inventor 沈军谢南群王岩
Owner 沈军