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Evaporated gas re-liquefaction device and method

A technology for evaporating gas and re-liquefaction, which is used in liquefaction, gas/liquid distribution and storage, and liquid bottling, etc. It can solve the problems of reduced stability of storage tanks, and achieve the effect of reducing cost and occupation area.

Inactive Publication Date: 2018-03-27
DAEWOO SHIPBUILDING & MARINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Floating vessel structures handling liquefied gas are often equipped with boil-off gas reliquefaction facilities because continuous accumulation of boil-off gas in the storage tank can degrade the stability of the storage tank

Method used

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  • Evaporated gas re-liquefaction device and method
  • Evaporated gas re-liquefaction device and method

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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Although some embodiments will be described herein, those skilled in the art will understand that these embodiments are given by way of illustration only and the invention is not limited thereto. In addition, it should be understood that various modifications, changes, and alterations can be made by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims and their equivalents.

[0035] The present invention can be applied to a floating vessel structure including a liquefied gas storage tank. In this context, "Liquefied Gas" should be understood to include Liquefied Natural Gas and Liquefied Petroleum Gas.

[0036] figure 2 is a configuration diagram of a boil-off gas reliquefaction apparatus according to an embodiment of the...

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PUM

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Abstract

The present invention discloses an evaporated gas re-liquefaction device. The evaporated gas re-liquefaction device comprises: a plurality of compressors installed in parallel, for compressing evaporated gas discharged from a storage tank; a re-liquefaction unit for re-liquefying the evaporated gas compressed by each of the plurality of compressors; and a plurality of supply lines for providing paths through which the evaporated gas is supplied from the plurality of compressors to the re-liquefaction units and a path through which the evaporated gas moves through the re-liquefaction unit, wherein the plurality of supply lines are installed to be independent from each other so as not to meet.

Description

technical field [0001] The present invention relates to an apparatus and method for boil-off gas reliquefaction, and more particularly, to an apparatus and method for boil-off gas reliquefaction that provides simple control over the re-liquefaction of boil-off gas. Background technique [0002] Floating vessel structures that handle liquefied gas such as Liquefied Natural Gas (LNG) and Liquefied Petroleum Gas (LPG) are provided with liquefied gas storage tanks. [0003] Such a storage tank is provided with an insulator that prevents heat exchange between the inside and the outside of the storage tank. However, since complete insulation of the inside of the storage tank from the outside is not possible, thermal energy is transferred from the outside to the inside, causing the liquefied gas to evaporate and thereby generate Boil-Off Gas (BOG). [0004] Since the continuous accumulation of boil-off gas in the storage tank can reduce the stability of the storage tank, floating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B25/12B63B25/14B63B25/16F17C6/00F17C5/02
CPCF25J1/004F25J1/0202F25J1/0245F25J1/0248F25J1/0277F25J2210/02F17C2221/033F17C2221/035F17C2223/0153F17C2223/0161F17C2265/034F17C2265/037F17C2270/0105F17C2270/0113F25J1/0025F25J2230/24F25J2230/30F17C5/02F17C6/00B63B25/14B63B25/16F25J1/0092F25J1/0294F25J1/0296F25J2230/60
Inventor 金仁雄
Owner DAEWOO SHIPBUILDING & MARINE ENG CO LTD