LNG (liquefied natural gas) storage tank provided with support column

Abstract

The invention discloses an LNG (liquefied natural gas) storage tank provided with a support column. The LNG storage tank comprises an LNG storage tank body, wherein the LNG storage tank body comprises an outer tank and an inner tank arranged in the outer tank; the support column is arranged in the LNG storage tank and connected with the dome of the outer tank; a gap between the support column and the tank wall of the inner tank is filled with a cold insulation material; and the support column is arranged in the center position of the LNG storage tank. The gap between the support column and the inner tank is filled with the cold insulation material, and a heating device is arranged in the support column, so that the support column surrounded by cryogenic liquid for a long term can keep a normal work state.

Description

technical field [0001] The invention relates to an LNG storage tank provided with a support column, belonging to the technical field of liquefied natural gas (LNG) storage. Background technique [0002] At present, there is no column structure in the LNG full-capacity storage tank. Due to the large-scale development trend of storage tanks, the span of the dome is getting larger and larger. But theory proves that the span of the dome cannot grow infinitely. When the volume of the storage tank is further increased, the span of the dome will become an important reason for restricting the large-scale development of the storage tank. Solving the problem of infinitely increasing dome span is one of the difficulties in the future development of storage tanks. [0003] Typically, columns are set up in the middle of buildings with large spans for support. However, since the LNG storage tank is a low-temperature container, there is a big difference in the design method from other ...

AI Technical Summary

Problems solved by technology

However, since the LNG storage tank is a low-temperature container, there is a big difference between the design methods of other buildings, so it is more difficult to add support columns to the storage tank

Moreover, the long-span concrete structure has higher requirements for construction, which increases the difficulty of the construction of the entire storage tank.

Images