Arrangement structure of single-pile nuclear island main workshop of nuclear power station

Abstract

The invention discloses an arrangement structure of a single-pile nuclear island main workshop of a nuclear power station. The arrangement structure comprises a reactor workshop located in the center of the whole nuclear island main workshop, three rows of adjacent security workshops surrounding the reactor workshop from one side of the reactor workshop and connected with the reactor workshop as well as a fuel workshop and a nuclear auxiliary workshop which surround the reactor workshop from the other side of the reactor workshop. Compared with the prior art, the arrangement structure of the single-pile nuclear island main workshop of the nuclear power station has the advantages as follows: the nuclear island main workshop of the nuclear power station adopts single-pile layout and can easily adapt to a complicated site condition, and work difficulty of the workshop design can be greatly reduced; the three rows of security workshops are separated, internal disaster protection performance is high, main steam and main water supply are introduced out from two sides of the reactor workshop, the breakage accident consequence is limited in a mechanical area of a steam/water supply valve station, and damage to electronic and sensitive facilities is avoided; the reactor workshop, the three rows of the security workshops and the fuel workshop share a raft foundation, the arrangement of the nuclear island main workshop is compact, an excellent anti-seismic property is realized, and structural anti-seismic design and reduction of civil engineering quantity are facilitated.

Description

technical field [0001] The invention belongs to the field of nuclear power plant design, and more specifically, the invention relates to an arrangement structure of a single-reactor nuclear island main building of a nuclear power plant. Background technique [0002] At present, some nuclear power units that have been built or are under construction adopt the second-generation plus technology, and they all have a double-reactor layout structure, which increases the design difficulty of the main plant layout, structure, and equipment of the nuclear island to a certain extent, which is not conducive to the rapid advancement of engineering construction. . [0003] In terms of safety system layout and plant resistance to external disasters such as the impact of large commercial aircraft, the second-generation plus technology also has some design differences from the third-generation mainstream technology, especially in the anti-seismic design of plants and equipment. [0004] In...

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Problems solved by technology

[0002] At present, some nuclear power units that have been built or are under construction adopt the second-generation plus technology, and they all have a double-reactor layout structure, which increases the design difficulty of the main plant layout, structure, and equipment of the nuclear island to a certain extent, which is not conducive to the rapid advancement of engineering construction.

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