LNG pressure regulating system and pressure regulating method thereof

A technology of pressure regulating system and pressure regulating tube, which is applied in special distribution devices, packaging, distribution devices, etc., to achieve the effect of good climbing performance and stable air supply pressure

Inactive Publication Date: 2012-01-11
CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this process requires more equipment, it can only be completed in a specific LNG filling station

Method used

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  • LNG pressure regulating system and pressure regulating method thereof
  • LNG pressure regulating system and pressure regulating method thereof
  • LNG pressure regulating system and pressure regulating method thereof

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Experimental program
Comparison scheme
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Embodiment Construction

[0030] In the present invention, a pressure regulation system is provided in the LNG filling station. After the LNG is transported to the station by the LNG transport vehicle, it is unloaded into the low-temperature LNG storage tank through the unloading process. After the pressure regulation system of the present invention is used to adjust the pressure, the temperature and pressure in the tank will rise, and finally reach a certain temperature according to the requirements of the LNG vehicle engine. Under the gas-liquid equilibrium, the pressure reaches saturation. Filling the LNG vehicle into the LNG vehicle through the LNG cryogenic pump in the station through the LNG filling machine can make the performance of the LNG vehicle stable (the gas filling process is airtight, and the pipelines passing through it are double-layer vacuum pipelines, there is no heat loss, and it is guaranteed to be filled to The fuel pressure in the LNG vehicle is still the saturation pressure). ...

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PUM

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Abstract

The LNG pressure adjusting system and method comprises the LNG storage can, low temperature pump for LNG carburetion of pressurized flow, a pressure regulating unit connecting the LNG storage can, low temperature pump, carburetor forming a enclosed circulating flow channel, pressure regulating control device connected with the LNG storage can, low temperature pump, carburetor, pressure regulatingpipe for the turning on, control and stop of the pressure regulation. The LNG flowing from the storage can is carbureted after going through the low temperature pump and the carburetor, forming mixture of liquid and gas, returning to the LNG storage can from the bottom, after circulation till the inner temperature and the pressure reaching the preset value to stop the pressure regulation. The regulated LNG is filled to the vehicle borne fuel bottle to satisfy the supply demand of the vehicle engine.

Description

technical field [0001] The invention relates to an LNG pressure regulating system and a pressure regulating method thereof. Background technique [0002] LNG is the abbreviation of liquefied natural gas. It is formed by liquefying natural gas at -162°C after dehydration, dehydrogenation, desulfurization, CO2 removal and other purification treatments. The dominant component is CH4. The liquid density of LNG is 0.42Kg / L, and its volume is 1 / 625 of the standard state. LNG greatly reduces the cost of transporting and storing natural gas. [0003] The application of LNG technology is regarded as a revolution in the contemporary natural gas industry. The world trade volume of LNG has accounted for more than 25% of the global gas trade volume, and it plays a huge role in regulating the supply of natural gas in the world. The gas supply can be guaranteed for countries with no or exhausted gas sources, and it can play a role in peak regulation and supplementation for countries wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B67D7/22B67D7/78B67D7/36B67D7/32B67D7/62
Inventor 黄华翁玉祥李志杰程雄波
Owner CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) CO LTD
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