Modular construction method for nuclear island of nuclear power station

Abstract

The invention discloses a modular construction method of a nuclear island of a nuclear power station, which comprises: a modular design step, which is to modularly design an upstream project of the nuclear island of the nuclear power station to divide a plurality of units in the nuclear island of the nuclear power station and / or combine the plurality of units to form a plurality of modules and connecting units between the modules and between the modules and the outside; a module prefabrication step, which is to prefabricate the modules in an industrial manufacturing mode; a plant building construction step, which is to construct plant buildings in the nuclear island in an open-top-method construction mode; and a module installation step, which is to install the prefabricated modules on preset design positions of the plant buildings. The method greatly increases the prefabrication rate of the industrial manufacturing of the project of the nuclear island of the nuclear power station, improves the construction quality of the project of the nuclear island, accelerates the construction process of the project and reduces overall construction cost.

Description

[0001] This application is a divisional application of the patent application with the filing date of September 27, 2007, the name "modular construction method for nuclear power plant nuclear island", and the application number 200710162906.3. technical field [0002] The invention relates to the field of nuclear power plant construction, in particular to the construction of mega-kilowatt and above large nuclear power plants. Background technique [0003] At present, in the construction of nuclear island projects of nuclear power plants that have been put into operation or are under construction in China, the traditional construction, civil engineering and installation construction organization mode is generally adopted, with the component or equipment unit as the smallest unit, and the construction is carried out according to the preset construction sequence. . It has the disadvantages of long construction period, many high-altitude operations, and complicated engineering q...

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Problems solved by technology

[0013] However, since this technology only solves the problem of transportation and installation of a small number of large equipment, the efficiency of large / ultra-large transportation, hoisting / hoisting machinery cannot be fully utilized, and the effect of shortening the construction period is not significant

[0014] In short, due to the limitation of the traditional construction, civil engineering and installation organization mode, the application of the above-mentioned technical means in the construction of nuclear power plants can only be partial

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