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Method for assembling and welding large skirt supporting structure spherical tank

A technology of supporting structure and welding method, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of long adjustment and welding seam alignment, large dimensional deviation, ball deformation, etc., to improve assembly and Welding efficiency, light hoisting tooling, and the effect of solving deformation

Active Publication Date: 2020-09-29
中国空气动力研究与发展中心超高速空气动力研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Limited by the width of the steel plate, large spherical tanks generally have more than 7 rings, exceeding 10,000m 3 The large-scale spherical tank can have up to 9 rings, and the number of spherical pieces in each ring is large. If the traditional welding method of full-piece assembly and then welding is used, it will lead to a cycle of adjustment and weld alignment Long and difficult, especially when installing the overhanging lower frigid and lower temperate spheres, because there is no external support structure, the spheres are prone to large deformation due to their own weight, resulting in large dimensional deviations after assembly

Method used

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  • Method for assembling and welding large skirt supporting structure spherical tank
  • Method for assembling and welding large skirt supporting structure spherical tank
  • Method for assembling and welding large skirt supporting structure spherical tank

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Embodiment 1

[0054] The assembly and welding method of the large skirt support structure spherical tank of the present embodiment includes the following steps:

[0055] a. will be greater than 10000m 3 The spherical tank, from top to bottom, is divided into figure 1 The upper polar zone 1, the upper and upper frigid zone 2, the upper frigid zone 3, the upper temperate zone 4, the equatorial zone 5, the lower temperate zone 6, the lower arctic zone 7, the lower lower arctic zone 8 and the lower polar zone 9 are shown in a total of 9 rings. The belts are connected by annular seams, and the annular seams are parallel annular seams, which constitute the weft of the spherical tank;

[0056] Each annular belt is evenly divided into spherical pieces with the same shape, and the adjacent spherical pieces are connected by longitudinal seams, and the longitudinal seams constitute the weft of each annular belt; the longitudinal seams of each annular belt are staggered;

[0057] like figure 2 , ...

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Abstract

The invention discloses a method for assembling and welding a large skirt supporting structure spherical tank. According to the method for assembling and welding the large skirt supporting structure spherical tank, a tubular triangular support, a stay cable, a clamping ring and an adjustable elastic joint are utilized for carrying out effect traction and adjustment on sphere sheets below an equatorial zone in the assembling process. For a lower half sphere of the large skirt supporting structure spherical tank, according to the assembling and welding method, external supporting hoisting is changed into internal cable-stayed hoisting, and a hoisting tool is light and handy, diversified in combination form and convenient to operate. The method for assembling and welding the large skirt supporting structure spherical tank is a new method for carrying out assembling and welding at the same time, the problem of overhung spherical sheet deformation is effectively solved, and the assembling and welding efficiency of the large spherical tank is improved.

Description

technical field [0001] The invention belongs to the technical field of spherical tank processing, and in particular relates to a method for assembling and welding a large-scale skirt support structure spherical tank. Background technique [0002] Considering the economy of spherical tank construction, more than 10000m 3 The large spherical tank generally chooses the skirt type support structure. [0003] Due to the limitation of the steel plate width, large spherical tanks generally have more than 7 annular belts, more than 10000m 3 The large spherical tank can have up to 9 rings, and each ring has a large number of balls. If the traditional assembly welding method of full-piece assembly and then welding is adopted, it will lead to the cycle of adjustment and weld alignment. It is long and difficult, especially when installing the balls in the lower frigid zone and the lower temperate zone that cantilever outwards, because there is no external support structure, the balls ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/04B23K101/12
CPCB23K31/02B23K37/0417B23K2101/125
Inventor 齐大伟潘武覃王磊吴斌陈德江唐志共魏俊峰吕德润李泽龙任海军
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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