Nuclear power plant containment steel lining integrated connection module structure and its installation method

Abstract

The invention discloses an integrated connection module structure of a nuclear power station safe shell steel lining. The structure comprises a baseplate ring segment, a haunching area wall plate anda horizontal segment, the baseplate ring segment and the horizontal segment are both horizontally arranged, and the haunching area wall plate is vertically arranged; the baseplate ring segment is fixedly connected with the lower end of the haunching area wall plate, the upper end of the haunching area wall plate is fixedly connected with one end of the horizontal segment, and a first reinforcing joint is arranged on the connection portion of the baseplate ring segment and the haunching area wall plate; a second reinforcing joint is arranged on the connection portion of the haunching area wallplate and the horizontal segment, a third reinforcing joint is arranged at the end, away from the haunching area wall plate, of the horizontal segment, and the baseplate ring segment, the haunching area wall plate, the horizontal segment, the first reinforcing joint, the second reinforcing joint and the third reinforcing joint are integrally assembled into an entirety and then fixedly connected with the lowest layers of the baseplate ring segment and a nuclear power station safe shell steel lining cylinder. The integrated connection module structure has the advantages that module assembly is conducted on an assembly field, hoisting in position at a time is achieved, and the intersecting construction time of construction with an inner shell is reduced.

Description

technical field [0001] The invention belongs to the technical field of building construction, and relates to the on-site assembly, hoisting and installation of modules used for the base plate ring section and the armpit area of ​​the steel lining of the nuclear island, specifically, the integral connection module structure of the containment steel lining of the nuclear power plant and its installation method. Background technique [0002] "Hualong No. 1" reactor-type nuclear power plant has the third-generation nuclear power technology with complete independent intellectual property rights. The steel lining bottom plate ring section and the armpit area of ​​the nuclear island are part of the steel lining of the reactor building, and its main function is to resist nuclear pollution under abnormal accident conditions. Diffusion is the third anti-leakage barrier of nuclear power plants, which belongs to the nuclear safety equipment of nuclear quality assurance level I and nucle...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the welding operation space of the nuclear power plant containment steel lining armpit area and the bottom plate ring section on site is narrow, the module is difficult to place, the construction time is long when it crosses with the inner shell, the risk of high-altitude operation is high, and the special key To solve the problems of long construction period and other problems, a nuclear power plant containment steel lining integrated connection module structure and its installation method are provided

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