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Housing of large-scale liquefied natural gas storage tank and construction method thereof

A technology of liquefied natural gas and construction method, which is applied in the field of large-scale liquefied natural gas storage tank shells, can solve the problems that the structure impermeability cannot be fully guaranteed, and the shell construction is complicated, and achieves the effects of beautiful appearance and good seismic performance.

Inactive Publication Date: 2011-04-06
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a large-scale liquefied natural gas storage tank shell, which is used to solve the problem that the large-scale storage tank adopts a conventional prestressed concrete structure shell, which is complicated to construct and cannot fully ensure that the structure has good impermeability. Another aspect of the present invention The purpose is to provide the construction method of this large LNG storage tank shell

Method used

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  • Housing of large-scale liquefied natural gas storage tank and construction method thereof
  • Housing of large-scale liquefied natural gas storage tank and construction method thereof
  • Housing of large-scale liquefied natural gas storage tank and construction method thereof

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Embodiment 1

[0046] Such as figure 1 As shown, the shell of this large liquefied natural gas storage tank includes a tank wall, a tank roof, and a tank bottom. Both the tank wall and the tank roof are composed of an inner steel plate 1 and an outer steel plate 2 sandwiching a concrete layer 3, and the tank bottom is made of a reinforced concrete plate The composition is an LNG storage tank with a steel plate sandwich concrete structure. Concrete is poured in the annular cavity of the two-layer steel plate, so that the two materials of steel plate and concrete are fused together. When under pressure, the concrete in the annular cavity of the two-layer steel plates is in a three-way compression state due to the constraints of the steel plates. The three-way compression concrete not only improves the longitudinal compressive strength, but also improves the elastic modulus, and increases plasticity. For the inner and outer layers of steel plates, due to the close adhesion of concrete, it is ...

Embodiment 2

[0048] Such as figure 2 As shown, the shell of this large-scale liquefied natural gas storage tank includes a tank wall, a tank roof, and a tank bottom. The body is seated on the bottom frame 7, and the bottom frame 7 is composed of concrete beams and columns 9 and a concrete slab 8, and the tank wall is airtightly connected with the concrete slab 8.

Embodiment 3

[0050] Such as image 3 As shown, the shell of this large liquefied natural gas storage tank includes a tank wall, a tank roof, and the tank wall, tank roof, and tank bottom are all composed of inner and outer layers of steel plates with a concrete layer 3 sandwiched between them, and the tank bottom is composed of reinforced concrete plates. In the concrete layer 3 at the tank wall, the steel bars 6 are welded side by side in the vertical direction, and in the concrete layer 3 at the tank top, the steel bars 6 are welded side by side in the arc direction. The welded steel bars 6 are HRB400 grade threaded steel bars.

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Abstract

The invention relates to a housing of a large-scale liquefied natural gas storage tank and belongs to the housing of a ground liquefied natural gas storage tank, which comprises the tank wall, the tank top and the tank bottom, wherein the tank wall and the tank top are respectively constituted by inner and outer layers of steel plates and middle sandwich concrete layers, steel bars are sequentially welded in the concrete layer of the tank wall side by side along the vertical direction, and the steel bars are sequentially welded in the concrete layer of the tank top side by side along the circular arc direction. The housing of the large-scale liquefied natural gas storage tank is constituted by combining the inner and the outer layers of the steel with the middle concrete, thereby completely ensuring that the structure has good impermeability, avoiding protrusive anchor nodes on the outer surface, being smooth and tidy and being attractive in appearance.

Description

1. Technical field: [0001] The invention relates to the shell of a ground liquefied natural gas storage tank, in particular to the shell of a large liquefied natural gas storage tank and a construction method thereof. 2. Background technology: [0002] Since liquefied natural gas (Liquefied Natural Gas, hereinafter referred to as LNG) has the characteristics of easy transportation, storage and safe use, the global consumption of LNG is increasing day by day, and LNG storage tanks are important equipment used in the process of storing and using LNG. Therefore, the research on LNG storage tanks has attracted more and more attention. According to capacity LNG storage tanks can be divided into small storage tanks (5-100m 3 , medium storage tank (100-1000m 3 ), large storage tanks (1000-4×10 4 m 3 ) and extra-large storage tanks (4×10 4 -20×10 4 m 3 ). LNG storage tanks are divided into surface storage tanks, underground storage tanks, semi-underground storage tanks and p...

Claims

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Application Information

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IPC IPC(8): E04H7/18E04G21/00
Inventor 张文福计静赵文艳
Owner NORTHEAST GASOLINEEUM UNIV
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