Lng tank for floating marine structure

Abstract

The invention is about a liquefied natural gas (LNG) tank capable of storing liquefied natural gas, more specifically, the invention relates to an LNG tank inner space of which is divided by such struThe invention is about a liquefied natural gas (LNG) tank capable of storing liquefied natural gas, more specifically, the invention relates to an LNG tank inner space of which is divided by such structure as a cofferdam, wherein the structure is used for inhibiting shaking. According to the invention, an LNG tank arranged in a floating marine structure is disclosed and used for storing liquefiedcture as a cofferdam, wherein the structure is used for inhibiting shaking. According to the invention, an LNG tank arranged in a floating marine structure is disclosed and used for storing liquefiednatural gas therein, comprising a structure for dividing the inner space of the LNG tank to reduce the shaking resulted from liquefied natural gas, and a fluid channel passing through the structure annatural gas therein, comprising a structure for dividing the inner space of the LNG tank to reduce the shaking resulted from liquefied natural gas, and a fluid channel passing through the structure and admitting the liquefied natural gas to pass therethrough to flow.d admitting the liquefied natural gas to pass therethrough to flow.

Description

technical field [0001] The present invention relates to an LNG storage tank capable of storing liquefied natural gas (LNG), and more particularly, the present invention relates to an LNG storage tank having an inner space divided by a structure such as a cofferdam, wherein the Structures are provided for suppressing sloshing phenomena from occurring. Background technique [0002] Gaseous natural gas is transported through gas pipelines installed on land or in the sea, or LNG-state natural gas is transported to distant markets through LNG transport vessels (vessels) when LNG is stored in the LNG vessels. LNG is produced by cooling natural gas at an extremely low temperature of about -163° C., and the volume of LNG is about 1 / 600 of that of gaseous natural gas, which makes ocean transportation suitable for long-distance transportation of LNG. [0003] An LNG carrier vessel that sails on oceans for loading LNG and unloads LNG to land markets includes LNG storage tanks (commonl...

AI Technical Summary

Problems solved by technology

[0012] However, in the case of installing the cofferdam 15 in the LNG storage tank as described above, since the inner space of the LNG storage tank is divided into independent spaces, there is a problem that, for example, for discharging the LNG loaded in the LNG storage tank The piping and equipment to the external pump or pump tower should be installed separately in the corresponding independent space

Also, there is a problem that the manufacturing cost of the LNG storage tank is increased and the operation and management of the LNG storage tank become complicated

[0013] It can be seen that the above-mentioned existing liquefied natural gas storage tanks for floating marine structures obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general product has no suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

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