Liquefied natural gas storage tank having improved insulation structure and method of manufacturing the same

Abstract

The invention relates to a liquefied natural gas storage tank with improved separation structure and a manufacture method thereof; furthermore, the liquefied natural gas storage tank is arranged in the structure such as a ship, a ground storage tank, a vehicle and similar objects. The invention aims at providing the liquefied natural gas storage tank with the improved separation structure and the manufacture method thereof; wherein, the sealing reliability can be increased by simplifying the structure of the separation body and a sealing wall and the assembly mechanism between the sealing walls and improving the assembly operation; furthermore, the time that is used for constructing the storage tank can be reduced by simplifying the manufacture structure and the process. In order to achieve the objects of the invention, the invention provides the liquefied natural gas storage tank with the improved separation structure. The invention comprises the separation wall which is arranged on the internal wall of the storage tank, the sealing wall which is arranged on the upper surface of the separation wall and is directly contacted with the liquefied natural gas, and a plurality of anchorage structures which are arranged on the internal wall of the storage tank so as to supporting the sealing wall by passing through the separation wall.

Description

technical field [0001] The present invention relates to a liquefied natural gas (LNG, liquefied natural gas) storage tank having an improved insulation structure and installed in structures such as ships, ground storage tanks, vehicles and the like, and a manufacturing method thereof. More specifically, the present invention relates to a liquefied natural gas storage tank having an improved insulation structure and a method of manufacturing the same, in which the manufacturing process can be shortened by simplifying the structure of the liquefied natural gas storage tank for storing cryogenic liquid, and can also be stably Maintain liquid-tight properties. Background technique [0002] Generally, liquefied natural gas (LNG) is obtained by liquefying natural gas, one of fossil fuels. The liquefied natural gas storage tanks are classified into: ground storage tanks, which are installed on the ground or buried in the ground according to installation locations; and mobile stora...

AI Technical Summary

Problems solved by technology

[0018] However, since the conventional LNG storage tank includes first and second partition walls and second and second sealing walls, the configuration of the partition walls is complicated, and the structure for connecting with the second sealing walls is also complicated

In addition, the working process of assembling the partition wall is not easy

In addition, the configuration of the anchoring structure or the connection part of the second sealing wall is relatively complicated, and it is difficult to install the anchoring structure or the second sealing wall. Therefore, there may be a problem that the sealing of the second sealing wall against the LNG is reliable. decreased sex

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