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Method for assembling upper and lower seal heads of nuclear power containment and jig frame structure

An assembly method and containment technology, which is applied to arch structures, dome structures, building components, etc., can solve the problems of complex structures and high costs, and achieve the effect of simple and efficient pillar support structures, saving time and economic costs

Inactive Publication Date: 2014-06-25
SHENYANG IND INSTALLATION ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This technology uses double-layer columns, which is costly and complex in structure

Method used

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  • Method for assembling upper and lower seal heads of nuclear power containment and jig frame structure
  • Method for assembling upper and lower seal heads of nuclear power containment and jig frame structure
  • Method for assembling upper and lower seal heads of nuclear power containment and jig frame structure

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Embodiment Construction

[0036] The present invention is specifically described below in conjunction with accompanying drawing, as figure 1 As shown, the shell can be divided into the following parts: the upper head is the equatorial zone, the upper temperate zone, the upper frigid zone, and the upper polar zone; the lower head is the equatorial zone, the lower temperate zone, the lower frigid zone, and the lower polar zone; figure 2 Each band consists of a different number of shells, as shown;

[0037] Such as image 3 and Figure 4 As shown, the tire frame structure includes a ring-shaped lower pillar supporting structure and a central pillar arranged at the center of the ring. The lower pillar supporting structure includes a horizontal tie rod, a diagonal tie rod, and a supporting pillar. The supporting pillar is composed of a lower pillar, an upper pillar Composition; the lower pillar is a hydraulic lifting structure, the tie rod is connected to two adjacent support pillars, and the diagonal ti...

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PUM

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Abstract

The invention discloses a method for assembling upper and lower seal heads of a nuclear power containment and a jig frame structure. Annular supporting columns and a center column are utilized to fix and adjust a containment body so that the upper and lower seal heads can be installed. The type of an upper segment and a lower segment is adopted for each supporting column, and the hydraulic adjusting mode is adopted for the lower segments of the supporting columns so that the construction requirements of the containment can be met. The mode for adjusting a containment board through the center column is faster, more convenient and more effective, meanwhile, the supporting column supporting structure is simpler and more efficient, and a large amount of time cost and economic cost can be saved.

Description

technical field [0001] The invention relates to the technical field of industrial installation, in particular to a method for assembling a nuclear power casing and a frame structure. Background technique [0002] The CV containment vessel is composed of five major components: bottom head, lower shell, middle shell, upper shell and top head, and the material is SA738GrB. The main installation difficulty lies in the assembly of the upper and lower heads. The inner diameter of the upper and lower heads is 39624mm, the height is 11468mm, each head is about 575T, and it is composed of 4 belts. The number of spherical shell plates in each belt is 2, 6, 24 and 32 in turn. , the maximum single board weight is about 10.5T. Due to the large diameter of the head and the large number of spherical shell plates, the assembled tire frame was used in the past, using several legs and platforms to form a mesh support, and then the shell plates of the containment were spliced ​​on the tire fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14E04B1/32
Inventor 周大杰刘旭东殷国东沈鏖徐航
Owner SHENYANG IND INSTALLATION ENG
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