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Efficient unloading device for liquefied natural gas tank car and application of efficient unloading device

A technology for liquefied natural gas and compressed natural gas, which is applied to fixed-capacity gas storage tanks, container discharge methods, gas/liquid distribution and storage, etc. , the effect of reducing the risk of operation

Inactive Publication Date: 2015-11-25
SEDIN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the LNG (liquefied natural gas) and CNG (compressed natural gas) joint construction station, the final pressure of the CNG (compressed natural gas) trailer unloading is about 2.0MPa, and a part of the natural gas in the trailer is still unused, resulting in waste

Method used

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  • Efficient unloading device for liquefied natural gas tank car and application of efficient unloading device
  • Efficient unloading device for liquefied natural gas tank car and application of efficient unloading device
  • Efficient unloading device for liquefied natural gas tank car and application of efficient unloading device

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Embodiment Construction

[0025] In order to make the technical problems solved by the patent of the present invention and the economic benefits brought by it more intuitive, the patent of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Unloading device of the present invention, it comprises compressor (4), air cooler (7), first heat exchanger (6), second heat exchanger (24), LNG (liquefied natural gas) storage tank (11), Hose, decompression valve, cut-off valve and pipeline, characterized in that one end of CNG (compressed natural gas) main pipeline 17 is connected with the first hose 2, and the other end passes through the first cut-off valve 3, the pressure-relief valve 5, and the first stop valve in turn. The return valve 8 is connected to the gas phase inlet of the second heat exchanger 24, and the first gas phase outlet of the second heat exchanger 24 is merged with the second gas phase outlet of the second heat exchanger 24 through the...

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Abstract

The invention provides an efficient unloading device for a liquefied natural gas (LNG) tank car. The efficient unloading device has the advantages that the LNG gasification rate can be lowered, waste is avoided and the LNG tank car is convenient in unloading.

Description

technical field [0001] The invention belongs to a device for unloading a liquefied natural gas tanker, in particular to an LNG (liquefied natural gas) tanker unloading device for a joint construction station of LNG (liquefied natural gas) and CNG (compressed natural gas) and its application. Background technique [0002] As the country vigorously promotes the construction of clean energy, the number of LNG (liquefied natural gas) vehicles continues to increase, which drives the rapid development of the entire gas station industry. At present, there are two ways to unload vehicles at LNG (liquefied natural gas) filling stations: submersible pump unloading and self-pressurized dump trucks. The characteristics of the two unloading methods are shown in the table below. [0003] Comparison of two unloading methods [0004] [0005] As far as the current two unloading methods are concerned, self-pressurized unloading is mostly used in the actual operation of gas filling stati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C7/02F17C13/00
Inventor 高旭亮彭国干赵亚平任瑜杰马耀马英
Owner SEDIN ENG
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