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Membrane type heat insulation system for cargo holds and liquefied gas fuel containers of extremely low temperature liquefied gas carriers

A technology of liquefied gas fuel and liquefied gas, which is applied in the direction of gas/liquid distribution and storage, outer wall of container structure, gas processing/storage purposes, etc., and can solve problems such as decreased workability, increased manufacturing costs, and difficult sealing operations

Active Publication Date: 2022-06-07
DAEWOO SHIPBUILDING & MARINE ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, because the membrane-type heat insulation system of the cargo tank of the conventional liquefied gas carrier needs to provide angle pieces on the adjacent wall surface of the corner of the cargo tank to seal the membrane, there is not only a problem that not only causes the sealing work to be extremely Difficult and reduced workability, and the problem of increasing manufacturing costs

Method used

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  • Membrane type heat insulation system for cargo holds and liquefied gas fuel containers of extremely low temperature liquefied gas carriers
  • Membrane type heat insulation system for cargo holds and liquefied gas fuel containers of extremely low temperature liquefied gas carriers
  • Membrane type heat insulation system for cargo holds and liquefied gas fuel containers of extremely low temperature liquefied gas carriers

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Embodiment Construction

[0033] Hereinafter, a thermal insulation system for a liquefied gas cargo tank according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0034] figure 1 It is a perspective view showing the cargo hold and the liquefied gas fuel container of the ultra-low temperature liquefied gas carrier of the present invention, figure 2 is a perspective view showing a 90° corner portion of the cargo hold and the liquefied gas fuel container of the ultra-low temperature liquefied gas carrier of the present invention, and image 3 It is a perspective view showing a 90° corner portion and an obtuse-angle corner portion of the cargo tank and the liquefied gas fuel container of the ultra-low temperature liquefied gas carrier of the present invention.

[0035]Referring to the above drawings, the present embodiment provides a corner portion membrane pleated portion connection structure that can be applied to the install...

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Abstract

The invention relates to a membrane-type heat insulation system for the cargo hold of a very low-temperature liquefied gas carrier and a liquefied gas fuel container. At least one of the primary membrane and the secondary membrane is made of stainless steel with folds In the case of the configuration, the membrane for finishing the folds made of Invar material is welded to the secondary membrane connection or the primary membrane connection to seal the folds in the corners, thus eliminating the need for An additional angle piece is used to connect the corrugated part on the adjacent wall surface of the corner part, so that workability can be improved and manufacturing cost can be reduced.

Description

technical field [0001] The present invention relates to a film-type thermal insulation system for a cargo tank and a liquefied gas fuel container of an extremely low-temperature liquefied gas carrier, and more particularly, in the case where the primary film and / or the secondary film have corrugations Membrane-type thermal insulation system for cargo tanks and liquefied gas fuel tanks of extremely low temperature liquefied gas carriers with a thermal insulation structure capable of realizing a barrier even if no folds are connected to the corners of the two adjacent surfaces of the cargo tank . Background technique [0002] Generally, Liquefied Natural Gas (hereinafter referred to as "LNG") is a colorless, transparent, ultra-low temperature that cools natural gas containing methane as a main component at an ultra-low temperature of -162°C and reduces its volume to about 1 / 600. liquid, which facilitates the transportation and storage of natural gas. [0003] In order to use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B25/16F17C3/02
CPCB63B25/16F17C2221/033F17C2203/012F17C2203/0358F17C3/027F17C2270/0107F17C2201/0157F17C2201/052F17C2223/0161F17C2223/033F17C2260/011B63B2025/085F17C2203/032B63B25/08
Inventor 朴成祐权升慜姜重圭
Owner DAEWOO SHIPBUILDING & MARINE ENG CO LTD