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Tank bottom structure of a metal inner tank of a membrane cryogenic storage tank

A low-temperature storage tank and metal technology, applied in fixed-capacity gas storage tanks, container discharge methods, container structure manufacturing, etc., can solve problems such as difficult processing, easy concentration of stress at kink positions, complex structure, etc., and improve assembly efficiency effect

Active Publication Date: 2022-04-26
宇欧围护技术(上海)有限公司
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  • Abstract
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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a tank bottom structure of a metal inner tank of a membrane type cryogenic storage tank, which solves the problem that the structure is too complicated, the processing is very difficult, the stress at the kink position is easy to concentrate, and the corrugations are connected by flat plates. Vertical and horizontal ripples are a problem of a group of waves

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  • Tank bottom structure of a metal inner tank of a membrane cryogenic storage tank
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  • Tank bottom structure of a metal inner tank of a membrane cryogenic storage tank

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Embodiment Construction

[0038]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] see Figure 1-21 , in an embodiment of the present invention: a metal inner tank structure of a membrane cryogenic storage tank, including a tank bottom 1 and a tank wall 2, the tank wall 2 is welded by a substrate 11, the tank bottom 1 is in an approximately circular structure, and the tank bottom It is spliced ​​by the base plate 11 and the splicing gap is filled by the peripheral special-shaped plate 12. The base plate 11 is composed of a plurality of...

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Abstract

The invention discloses a tank bottom structure of a metal inner tank of a membrane type cryogenic storage tank. The bottom of the tank is approximately circular in structure. unit or several basic units, the substrate is welded or deep-drawn (deep-drawn), the basic unit is composed of a flat plate, a longitudinal wave and a transverse wave on the plate, and the longitudinal wave and the transverse wave are both recessed on one side In the protruding arched structure, the longitudinal wave and the transverse wave are vertically interlaced and connected together through a smooth transition of a curved surface, and both the longitudinal wave and the transverse wave are in a smooth transition with the surrounding flat plates through a curved surface. The tank bottom structure of the metal inner tank of the membrane cryogenic storage tank can avoid stress concentration during thermal expansion and contraction, and only a small number of molds are required for manufacturing, which can improve on-site assembly efficiency during assembly.

Description

technical field [0001] The invention relates to the technical field of thin-film low-temperature storage tanks, which are used for storing media requiring low-temperature storage such as LNG, LPG, ethylene, liquid nitrogen, and liquid oxygen, and specifically a tank bottom structure of a metal inner tank of a membrane-type low-temperature storage tank . Background technique [0002] Natural gas is a combustible gas extracted naturally, and its main component is methane. LNG is condensed into a liquid by cooling gaseous natural gas at normal pressure to -162°C. Natural gas liquefaction can greatly save storage and transportation space and cost, and has the characteristics of large calorific value and high performance. Natural gas is becoming more and more popular as a clean energy source, and many countries have listed LNG as the preferred fuel. [0003] As my country's demand for natural gas continues to increase, the construction of LNG receiving stations has developed r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C3/00F17C13/00
CPCF17C3/00F17C13/00F17C2203/012F17C2203/0614F17C2203/0636F17C2209/21F17C2209/221
Inventor 张永福张春华张振宇章晨飞
Owner 宇欧围护技术(上海)有限公司
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