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Nuclear power plant ring crane corbel and manufacturing method thereof

A nuclear power plant and ring-hoisting technology, which is applied to manufacturing tools, load-hoisting components, and hoisting equipment braking devices, etc., can solve the problems of high degree of restraint, easy cracks in welding seams, and harsh environment, so as to compensate for welding deformation and speed up The construction process and the effect of ensuring construction quality

Active Publication Date: 2012-12-12
CHINA NUCLEAR IND HUAXING CONSTR
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main structure of the ring-hanging corbel is a box-type frame with a net weight of about 4 tons. Most of the welds are in the form of full penetration. The welding workload is large, the welding deformation is difficult to control, the welding stress is large, and the welds are prone to cracks.
Due to the large amount of welding and the degree of restraint in the box-shaped structure, it is easy to generate large welding stress and welding deformation
The Chinese patent application number 201010187940.8 once disclosed a corbel and its manufacturing method that can effectively solve the above problems, but the corbel not only has a complex structure, but also requires the use of anti-welding deformation tooling, which requires piece-by-piece tailor welding, and is difficult to prefabricate , unable to meet the construction needs of tight construction schedule and harsh environment

Method used

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  • Nuclear power plant ring crane corbel and manufacturing method thereof
  • Nuclear power plant ring crane corbel and manufacturing method thereof
  • Nuclear power plant ring crane corbel and manufacturing method thereof

Examples

Experimental program
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Embodiment 1

[0024] The ring hanging corbel of the nuclear power plant in this embodiment is designed through a combination of estimation and experimentation, and is composed of a back stiffener 1, a load-bearing box 2 extending forward from the front of the back stiffener, a reinforcing plate, and a sealing plate (see Figure 4 ).

[0025] The specific structure of the back stiffener 1 is as follows: figure 1 As shown, it is composed of a vertical main board 1-1 welded to a fixed rib on the back. The reinforcement plate includes a door frame 1-2, a horizontal main reinforcement 1-3 located at the lower part of the door frame 1-2, two vertical main reinforcements 1-4 at intervals in the middle of the door frame, and a vertical central reinforcement 1-4 And the two vertical auxiliary ribs 1-5 between the two sides of the door frame 1-2, and the two horizontal auxiliary ribs 1-6 respectively located at the lower ends of the two vertical auxiliary ribs 1-5 corresponding to the middle part of...

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Abstract

The invention relates to a nuclear power plant ring crane corbel, and relates to a manufacturing method thereof simultaneously, belonging to the technical field of building construction facilities. The corbel consists of a back rib plate, a bearing box body, a reinforcing plate and a sealing plate. The manufacturing method comprises the following steps of: performing full penetration weld; blanking, and prefabricating the back rib plate and the bearing box body; and performing field assembly welding. Sufficient strength and rigidity of the nuclear power plant ring crane corbel can be ensured, major members can be prefabricated, and only simple field assembly welding is required, so that the workload of field construction is reduced greatly, and the construction progress is accelerated; and meanwhile, due to the adoption of a structural design, welding deformation can be reduced or compensated to the maximum extent, and the construction quality is ensured.

Description

technical field [0001] The invention relates to a supporting member of a ring crane in a containment shell of a nuclear power plant, in particular to a ring crane corbel of a nuclear power plant, and also relates to a manufacturing method thereof, belonging to the technical field of building construction facilities. Background technique [0002] Ring crane corbels in nuclear power plants are reliable supporting components for ring cranes inside the containment. They are usually anchored in the concrete of the containment and require high manufacturing quality. [0003] The main structure of the ring-hanging corbel is a box-type frame with a net weight of about 4 tons. Most of the welds are in the form of full penetration. The welding workload is large, the welding deformation is difficult to control, the welding stress is large, and the welds are prone to cracks. Due to the large amount of welding and the degree of restraint of the box-shaped structure, it is easy to generat...

Claims

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Application Information

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IPC IPC(8): B66C5/00B23K31/02
Inventor 陈明国徐涛王立国许开勋刘苏楠
Owner CHINA NUCLEAR IND HUAXING CONSTR
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