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Method for assembling and welding cased crane-beam in circular rail of nuclear-power station

A technology of circular track and welding method, applied in welding equipment, track system, arc welding equipment, etc., can solve problems such as assembly and welding of box-shaped crane beams.

Active Publication Date: 2007-11-21
CHINA NUCLEAR IND HUAXING CONSTR
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  • Application Information

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Problems solved by technology

[0004] The search found that the Chinese patent application with application number 200610201042.7 discloses a box-section beam-column joint structure and its welding method, which solves the setting and welding of box-section beam-column joints, but this method cannot solve the problem of ring track Technical Problems in Assembling and Welding of Box Crane Beams

Method used

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  • Method for assembling and welding cased crane-beam in circular rail of nuclear-power station
  • Method for assembling and welding cased crane-beam in circular rail of nuclear-power station
  • Method for assembling and welding cased crane-beam in circular rail of nuclear-power station

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Experimental program
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Embodiment 1

[0019] The ring track box crane girder of the nuclear power plant in this embodiment is shown in Fig. 1, Fig. 2 and Fig. 3. 6. The second stiffening plate 7, the longitudinal stiffening plate 8, the third stiffening plate 9, the fourth stiffening plate 10, and the partition plate 11 are welded to each other. The strength and shape after manufacture must meet the nuclear quality assurance level 1 and nuclear safety quality requirements, so the key is to strictly control the deformation while ensuring the welding strength.

[0020] After repeated experiments and research, the following specific process steps were drawn up.

[0021] Step 1: Prefabrication of the ring-hanging beam parts - typesetting and lofting according to the production details, and then carrying out numbering, marking and blanking.

[0022] Step 2: Lofting of the parts - according to the shape and size of the parts, make an arc-shaped template for the longitudinal stiffening plate at a ratio of 1:1.

[0023]...

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Abstract

The invention is concerned with an assembled and seal method of box crane beam with ring type orbit using for nuclear power plant, belonging to the establishment construction technology field of nuclear power plant. It relates to rectification of stuff, sealing inner and outside webs and clapboard, sealing upper and down wing edge and the inner and outside webs, sealing stiffened panel, sealing end plate and the rectify after seal. Assemble and seal the web and inner muscle plate to a type of H to reduce the distortion and keep the seal quality, while the temporary backboard controls the final seal distortion when sealing the end plate. It will control the distortion effectively to reach the demand of the first level of nuclear quality and nuclear safety through easy adjustment of circle crane beam after sealed with steady quality.

Description

technical field [0001] The invention relates to a method for assembling and welding a load-bearing component, in particular to a method for assembling and welding a box-shaped crane girder of a nuclear power plant ring track, and belongs to the technical field of nuclear power plant facility construction. Background technique [0002] With the rapid development of my country's national economy, it is estimated that by 2020, the installed capacity of nuclear power plants will increase from the current 8.7 million kilowatts to 36 million kilowatts. This means that in the next fifteen years, nuclear power construction will reach a new level. [0003] In the construction of nuclear power plants, the ring track box crane beam (referred to as the ring crane beam) is one of the important components in the nuclear island. In the past, box girders were generally assembled on a platform, that is, the upper flange was placed on the platform with a spreader, and tack welding angle stee...

Claims

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Application Information

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IPC IPC(8): B66C7/00B23K9/095
Inventor 毛家驹易蓉赵贵会
Owner CHINA NUCLEAR IND HUAXING CONSTR
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