China Nuclear Power Engineering Company Ltd.

China General Nuclear Power Group

Shenyang Blower Group Nuclear Power Pumps Co., Ltd.

Shenyang Blower Works Group Nuclear Pump Co. Ltd.

Yixun Zhang

Wei Fu

Zhao Chen

Xueling Wang

Guohui Cong

Jiajiong Ma

Yanzhang Liu

Zhongshuang Li

Zhiyuan Luo

Xingjiang Chen

Yuangang Duan

Xiaowu Song

A main pump shaft seal water injection system of a nuclear power plant includes a jet pump, a high pressure cooler, a hydrocyclone, valves and a main connection pipeline outside of a main pump, and an auxiliary pump and an internal flow path inside the main pump. Inner and outer flow paths of the main pump are connected with a shaft seal water injection hole and a high temperature water drainage hole. The main connection pipeline is connected between an upper filling water pipeline and a shaft seal water injection hole. A bypass pipeline connected with the jet pump, the high pressure cooler and the hydrocyclone, the main connection pipeline is provided with a normally open main pipeline isolating valve. The bypass pipeline allows low temperature upper filling water in the RCV system to enter the shaft seal water injection hole of the main flange directly.

Main pump shaft seal water injection system of a nuclear power station

Growing community of inventors

Liaoning, China

Yixun Zhang