Marine nuclear power platform reactor pressure vessel support skirt

A technology for pressure vessels and reactors, applied in the fields of reactors, nuclear engineering, nuclear power generation, etc., can solve the problems of inability to clear the root of the bottom weld, leakage, and difficult non-destructive testing of the top weld, so as to achieve easy heat transfer, reduce safety risks, Solving the effect of radiation deterioration
CN110534212BInactive Publication Date: 2020-11-24NO 719 RES INST CHINA SHIPBUILDING IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NO 719 RES INST CHINA SHIPBUILDING IND
Publication Date
2020-11-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a supporting skirt for a reactor pressure vessel of an ocean nuclear power platform. The supporting skirt comprises a cylinder body, and the supporting skirt is characterizedin that the cylinder body has a thin-wall cylinder structure, three or more kidney-shaped discharge holes are arranged in the upper part of the cylinder body, the long axis and the short axis of eachkidney-shaped discharge hole are respectively located in the vertical direction and the horizontal direction, the kidney-shaped discharge holes are located in the same horizontal height, and the distance between the center lines of the kidney-shaped discharge holes and the top end of the cylinder body is 350 mm to 450 mm; and one or more circular manholes which are also used as water inlet holes are formed in the lower part of the cylinder body, the manholes which are also used as water inlet holes are located at the same horizontal height, the distance between the center lines of the manholeswhich are also used as the water inlet holes and the bottom end of the cylinder body is 300 mm to 600 mm, and the upper end surface and the lower end surface of the cylinder body are respectively welded with the reactor pressure vessel and a containment bottom plate. The supporting skirt provided by the invention has a simple structure, easily guides out heat, and can reduce irradiation degradation of weld joints and deck materials, and prolong the service life.
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Description

technical field

[0001] The invention relates to the bearing and fixing of reactor pressure vessels under marine environment conditions, in particular to the supporting skirt of reactor pressure vessels of marine nuclear power platforms. Background technique

[0002] The reactor pressure vessel is usually carried and fixed by a support structure. On the one hand, the support structure must bear the contents of the reactor pressure vessel and the loads generated and transmitted by related mechanisms and structures, and at the same time limit the displacement of the reactor pressure vessel in all directions. The commonly used support forms of reactor pressure vessels in existing nuclear power plants or nuclear facilities mainly include circular support structures and support skirt (thin-walled cylinder) structures.

[0003] The reactor pressure vessels of land-based nuclear power plants or nuclear facilities generally adopt a circular support structure, and its use status is as...

Claims

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