Three-loop system of fast reactor nuclear power plant

Abstract

The invention belongs to the technical field of arrangement of the high temperature and high pressure pipeline of a nuclear power plant, and particularly relates to a three-loop system of a fast reactor nuclear power plant. The three-loop system comprises a main water supply mother pipe (7), a main steam mother pipe (8), a starting shutdown system mother pipe (9) and multiple groups of steam generator equipment modules, wherein the main water supply mother pipe (7), the main steam mother pipe (8), the starting shutdown system mother pipe (9) and the steam generator equipment modules are connected to a steam turbine workshop, each steam generator equipment module comprises an evaporator (1) and a superheater (2), the top ends of the evaporator (1) and the superheater (2) are connected to the same upper steam pipeline (5), the bottom end of the evaporator (1) is connected to the main water supply mother pipe (7) through a main water supply branch pipe (3), the bottom end of the superheater (2) is connected to the main steam mother pipe (8) through a main steam branch pipe (4), and the upper steam pipeline (5) is connected to the starting shutdown system mother pipe (9) through a starting shutdown system branch pipe (6). According to the present invention, by reasonably arranging the water supply steam pipeline branch pipe, the mother pipe, the valve, the flow meter, the bracket and the whip-restraint member, the stress requirements of the three-loop system of the fast reactor nuclear power plant and the operation and maintenance requirements of the nuclear power plant can bemet.

Description

technical field [0001] The invention belongs to the technical field of arrangement of high-temperature and high-pressure piping systems in nuclear power plants, and in particular relates to a three-circuit system of a fast reactor nuclear power plant. Background technique [0002] The types of steam generators in nuclear power plants can be divided into natural circulation steam generators and once-through steam generators according to the flow of working fluid. Most nuclear power plants that have been built and operated at present use natural circulation steam generators. Each natural circulation steam generator Independent main feedwater and main steam pipeline connections are set for all reactors; fast reactor is an advanced nuclear power reactor type, and the steam generators used are multiple sets of once-through steam generators, and each set of once-through steam generators is equipped with independent main feedwater and main The complex structure of the steam pipelin...

AI Technical Summary

Problems solved by technology

[0002] The types of steam generators in nuclear power plants can be divided into natural circulation steam generators and once-through steam generators according to the flow of working fluid. Most nuclear power plants that have been built and operated at present use natural circulation steam generators. Each natural circulation steam generator Independent main feedwater and main steam pipeline connections are set for all reactors; fast reactor is an advanced nuclear power reactor type, and the steam generators used are multiple sets of once-through steam generators, and each set of once-through steam generators is equipped with independent main feedwater and main The steam pipeline has a complex pipeline structure, which is not conducive to layout, and a new layout method is required to achieve the functional requirements of the fast reactor

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