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1. (WO2018108068) ULTIMATE HEAT SINK SYSTEM UTILIZED IN NUCLEAR POWER PLANT

Pub. No.:    WO/2018/108068    International Application No.:    PCT/CN2017/115603
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Wed Dec 13 00:59:59 CET 2017
IPC: G21D 1/02
G21D 3/06
Applicants: CHINA NUCLEAR POWER ENGINEERING CO., LTD.
中广核工程有限公司
CHINA GENERAL NUCLEAR POWER GROUP
中国广核集团有限公司
Inventors: YANG, Ting
杨廷
LIAO, Jinyuan
廖金远
LI, Shiguang
李世光
WEI, Yingdi
魏颖娣
LI, Zengfen
李增芬
Title: ULTIMATE HEAT SINK SYSTEM UTILIZED IN NUCLEAR POWER PLANT
Abstract:
An ultimate heat sink system utilized in a nuclear power plant comprises at least one non-safe series used by a non-safe user (200), and at least one safe series (A, B) used by a safe user (100, 110, 120). The non-safe series and the safe series (A, B) comprise water cooling systems and water supply systems. Each of the water supply systems comprises a cooling pump set (500, 510) and a heat exchange set (400, 410). The water supply system in each series comprises a set of a cooling pool (700, 710) and a cooling tower (600, 610). The cooling pool (700, 710) is located at the upstream of the cooling pump set (500, 510), and the cooling pump set (500, 510) is connected to a water outlet of the heat exchange set (400, 410) and the cooling pool (700, 710), respectively. A water supply pool (800) communicating with an external water area is provided at the upstream of the cooling pool (700, 710). The cooling pool (700, 710) of each series communicates with a respective water supply pool (800). The ultimate heat sink system provides a highly reliable water source to a power plant, employs the atmosphere as the ultimate heat sink to maximally reduce the impact of an external hydrological and meteorological condition change, thereby achieving goals of a strong capability of resisting an external extreme condition, a simple system configuration, and low operation and maintenance costs.