Title:
PASSIVE RESIDUAL HEAT REMOVAL SYSTEM AND METHOD FOR NUCLEAR REACTOR
Document Type and Number:
WIPO Patent Application WO/2024/055628
Kind Code:
A1
Abstract:
The present invention provides a passive residual heat removal system and method for a nuclear reactor. The system comprises: a reactor system, comprising a hot end and a cold end, wherein the hot end outputs a fluid outwards, and the cold end inputs a fluid inwards; and a residual heat removal system, comprising a multi-stage heat exchanger, wherein every two adjacent stages of heat exchangers are respectively connected by means of an intermediate header. The hot end is connected to an inlet of a first-stage heat exchanger by means of an inlet pipeline; the intermediate header is provided with a side outlet, and the side outlet and an outlet of a last-stage heat exchanger are respectively connected to the cold end by means of outlet pipelines to form a multi-stage heat exchange loop; and the inlet pipeline and each outlet pipeline are respectively provided with an isolating valve. According to the present invention, different requirements for the heat removal capacity of a residual heat removal system under different accidents can be met, the design of the multi-stage heat exchanger avoids an excessively large or small heat removal amount, and adverse effects on a nuclear reactor system due to a false start of a passive residual heat removal system are reduced.
Inventors:
QI ZHANFEI (CN)
YANG ZIJIANG (CN)
WANG HAITAO (CN)
LIU DI (CN)
WU YANHUA (CN)
LI RUI (CN)
HU NAN (CN)
FAN PU (CN)
CAO ZHEN (CN)
LI SHENGZHE (CN)
CAO KEMEI (CN)
YANG ZIJIANG (CN)
WANG HAITAO (CN)
LIU DI (CN)
WU YANHUA (CN)
LI RUI (CN)
HU NAN (CN)
FAN PU (CN)
CAO ZHEN (CN)
LI SHENGZHE (CN)
CAO KEMEI (CN)
Application Number:
PCT/CN2023/096007
Publication Date:
March 21, 2024
Filing Date:
May 24, 2023
Export Citation:
Assignee:
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD (CN)
International Classes:
G21C15/18; F28F13/00
Foreign References:
| CN115331849A | 2022-11-11 | |||
| CN111430050A | 2020-07-17 | |||
| CN110265158A | 2019-09-20 | |||
| CN106653106A | 2017-05-10 | |||
| CN1080426A | 1994-01-05 | |||
| CN110570957A | 2019-12-13 | |||
| CN110207523A | 2019-09-06 | |||
| CN202018219U | 2011-10-26 | |||
| US20130336441A1 | 2013-12-19 | |||
| US4753771A | 1988-06-28 |
Other References:
LI LIANGGUO, SU QIANHUA, HAO CHENYU, YU JIANMING, MENG XIANGFEI, WU XIAOHANG, LU DONGHUA, ZHU FENG: "Investigation on Operation and Heat Transfer Performance of Advanced Secondary Passive Residual Heat Removal System", NUCLEAR SCIENCE AND ENGINEERING., vol. 40, no. 4, 1 August 2020 (2020-08-01), pages 532 - 539, XP093146044
LIU ZHAN ，, QI ZHANFEI, WANG GUODONG, WANG WEIWEI, ZHANG GUOSHENG: "Small Reactors Engineered Safety Feature（ESF）and CAP200 Passive ESF Demonstration", NUCLEAR SCIENCE AND ENGINEERING., vol. 40, no. 3, 1 June 2020 (2020-06-01), pages 468 - 474, XP093146047
LIU ZHAN ，, QI ZHANFEI, WANG GUODONG, WANG WEIWEI, ZHANG GUOSHENG: "Small Reactors Engineered Safety Feature（ESF）and CAP200 Passive ESF Demonstration", NUCLEAR SCIENCE AND ENGINEERING., vol. 40, no. 3, 1 June 2020 (2020-06-01), pages 468 - 474, XP093146047
Attorney, Agent or Firm:
BEIJING RIMOON INTELLECTUAL PROPERTY AGENCY LTD. et al. (CN)
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