Disclosed in the present invention are an emergency core cooling system for a nuclear power plant and a cooling method. The emergency core cooling system for a nuclear power plant comprises: a suppression pool provided in a containment, the suppression pool being provided with a guide part, and the guide part being used for guiding steam from the containment to the suppression pool; and a low-pressure safety injection unit, comprising a low-pressure safety injection pump, a heat exchange device and a spraying device, an inlet end of the low-pressure safety injection pump being connected to the suppression pool and a primary loop hot leg, an outlet end of the low-pressure safety injection pump being connected to an inlet end of the heat exchange device, an outlet end of the heat exchange device being connected to a primary loop cold leg and the spraying device, and the spraying device being arranged in the containment. The present invention can realize the intensive design of three functions, i.e. safety injection, emergency residual heat discharge and containment spraying, and quickly and efficiently implement pressure control in containments when loss-of-coolant accidents occur, thereby satisfying process design of compact/integrated pressurized water reactors.
- 출원번호 : CN2025/111224
- 출원인 : CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE CO., LTD.;CGN POWER CO., LTD;
- 특허번호 :
- IPC : G21C-015/18(2006.01)