Hoisting tool for outer dome of nuclear power reactor

By designing a nuclear power reactor outer dome lifting tool and utilizing symmetrical lifting troughs and lifting rope assemblies, uniform force and stable lifting of the outer dome steel formwork are achieved, solving the problem of limited load of traditional tower cranes and ensuring the safety and stability of the lifting process.

CN223397292UActive Publication Date: 2025-09-30CHINA NUCLEAR POWER ENGINEERING COMPANY LTD
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Patent Information

Application Number
CN202422932710.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-09-30
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

The existing tower crane has limited lifting load and cannot effectively lift the steel formwork of the outer dome of the nuclear power reactor. The lack of special lifting tools makes installation inconvenient.

Method used

A nuclear power reactor outer dome lifting tool is designed, which includes a hook, a lifting rope assembly, a short lifting assembly and a lifting connection assembly. The symmetrically arranged first and second lifting grooves ensure that the lifting ropes are evenly stressed, and the entire dome is lifted using a large crawler crane.

Benefits of technology

It achieves uniform stress on the outer dome steel formwork, reduces shaking and deformation, improves lifting safety and stability, solves the problem of limited load of traditional tower cranes, and realizes large-span and large-load lifting.

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Abstract

The utility model relates to a hoisting tool for an outer dome of a nuclear power reactor, which is provided with a first hoisting groove and a second hoisting groove which are symmetrical to each other, so that a hoisting rope is uniformly stressed in a hoisting process, and potential safety hazards caused by overlarge stress of a single point are avoided. And due to the arrangement of the lifting rope assembly and the short lifting assembly, stress in the lifting process is more reasonable, shaking and deformation of the steel mold in the lifting process are reduced, and the lifting safety is improved. Furthermore, the lifting hook is arranged on a large crawler crane, the nuclear power reactor outer dome lifting tool can be correspondingly mounted on the large crawler crane, so that the outer dome steel mold is integrally lifted, the problem that the lifting load of a traditional tower crane is limited is effectively solved, and large-span and large-load lifting of the outer dome steel mold is realized.
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