Reactor coolant loop arrangement of passive pressurized water reactor nuclear power plant

A technology for pressurized water reactor nuclear power plants and reactors, which is applied in the directions of reactors, cooling devices, and auxiliary equipment of nuclear power plants, can solve problems such as increasing the technical difficulty of developing main pumps for nuclear power plants.

Pending Publication Date: 2016-11-09
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
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It is inevitable to further increase the technical difficult

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  • Reactor coolant loop arrangement of passive pressurized water reactor nuclear power plant
  • Reactor coolant loop arrangement of passive pressurized water reactor nuclear power plant

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[0050] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] Such as figure 1 and 2 As shown, it is the layout of the reactor coolant loop of the passive PWR nuclear power plant, including: 1. Reactor pressure vessel:

[0052] Under the condition that the opening of the reactor pressure vessel connecting section cylinder (see item 1) is allowed, four reactor coolant outlet nozzles (see item 4) are arranged on the reactor pressure vessel connecting section cylinder to connect four main pipes The hot section (see item 7, item 20, item 25, item 27), and 8 reactor coolant inlet nozzles (see item 2, item 3) are provided for connecting the cold sections of the eight main pipes (see item 5, Item 6, Item 18, Item 19, Item 22, Item 23, Item 26 and Item 29). Among them, the four reactor coo...

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Abstract

The invention provides a reactor coolant loop arrangement of a passive pressurized water reactor nuclear power plant. The reactor coolant loop arrangement comprises a reactor pressure vessel and vapor generators; the reactor pressure vessel is provided with a pipe-connection section barrel which is provided with reactor coolant outlet pipe-connection nozzles and reactor coolant inlet pipe-connection nozzles, and the vapor generators are connected with the reactor pressure vessel through main pipelines. According to the reactor coolant loop arrangement of the passive pressurized water reactor nuclear power plant, design improvement is conducted on a reactor main coolant loop, the technical bottleneck problem of large CAP series nuclear power plant main pumps is broken through, and meanwhile the technical bottleneck problem of large CAP series nuclear power plant main pipeline hot section manufacturing is broken through.

Description

technical field [0001] The invention relates to the field of pressurized water reactor nuclear power plants, in particular to an arrangement of reactor coolant loops in passive nuclear power plants. Background technique [0002] The CAP series third-generation passive nuclear power plants represented by the CAP1000 nuclear power plant have been the main reactor type for the development of nuclear power in my country. The main coolant system of the reactor of the CAP1000 nuclear power plant adopts two loops. The hot section of the main pipeline from the vessel to the steam generator is composed of two cold sections of the main pipeline that transport the reactor coolant from the reactor main coolant pump (referred to as the main pump) back to the reactor pressure vessel. The inlet nozzle of each main pump is directly connected with the outlet nozzle of the steam generator, and the main pump is suspended at the lower part of the head of the water chamber of the steam generator....

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Application Information

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IPC IPC(8): G21C15/12G21C15/14G21D1/00G21D1/02
CPCG21C15/12G21C15/14G21D1/006G21D1/02Y02E30/30Y02E30/00
Inventor 施永兵
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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