Combined support structure and dynamic containment support system for nuclear power plants

By combining rigid connecting rods and dampers in the combined support structure, the problems of high tonnage, large stiffness, and excessive stroke of the dampers in nuclear power plants were solved, and the stability and economy of the equipment under thermal expansion and seismic conditions were achieved.

CN119308967BActive Publication Date: 2026-07-07CHINA NUCLEAR POWER DESIGN COMPANY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NUCLEAR POWER DESIGN COMPANY
Filing Date
2024-10-14
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing nuclear power plant damper support schemes have problems such as high requirements for tonnage, stiffness, and stroke, difficulty in selection, and high cost, as well as the problem of impact and flutter effects caused by gap supports.

Method used

A combined support structure is adopted, which includes a combination of rigid links and dampers. The load and stroke requirements of the dampers are adjusted by adjusting the length of the links, forming a combined support of rigid links and dampers, thereby reducing the tonnage, stiffness and stroke requirements of the dampers.

Benefits of technology

It enables the equipment to expand freely under thermal expansion conditions and maintain equipment stability under seismic conditions, reduces the seismic load on the damper, simplifies the selection process, and reduces procurement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

A combined support structure comprises a first connecting rod, a second connecting rod and a damper, the first end of the first connecting rod is hinged with a first civil end; the first end of the second connecting rod is hinged with a device end, the second end of the second connecting rod is hinged with the second end of the first connecting rod, the hinge of the first connecting rod and the second connecting rod is movable; one end of the damper is hinged with the hinge of the first connecting rod and the second connecting rod, the other end of the damper is hinged with a second civil end. The structure can be applied to specific occasions to solve the problem of damper load and stroke overrun, and provide a selection in addition to the damper and the stop block for the selection of dynamic constraint support in engineering design. It can realize the free expansion of the device in the thermal expansion working condition, maintain the stability of the device in the seismic working condition, greatly reduce the seismic load borne by the damper, and also reduce the tonnage, stiffness demand and stroke demand of the damper, thereby simplifying the selection process of the damper and reducing the procurement cost.
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