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

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United States of America

PATENT NO 10510454
SERIAL NO

15373495

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
CHINA GENERAL NUCLEAR POWER GROUP33/F SOUTH BUILDING CGN TOWER 2002 SHENNAN BOULEVARD FUTIAN DISTRICT SHENZHEN
CHINA NUCLEAR POWER ENGINEERING CO LTD100840 NO 117 WEST THIRD RING ROAD NORTH BEIJING HAIDIAN DISTRICT BEIJING CITY BEIJING CITY 100840
SHENYANG BLOWER GROUP NUCLEAR POWER PUMPS CO LTDNO 16 DEVELOPMENT ROAD ECONOMIC & TECHNICAL DEVELOPMENT ZONE SHENYANG LIAONING 110142

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xingjiang Guangdong, CN 1 1
Chen, Zhao Guangdong, CN 64 206
Cong, Guohui Guangdong, CN 1 1
Duan, Yuangang Guangdong, CN 1 1
Fu, Wei Guangdong, CN 114 549
Li, Zhongshuang Guangdong, CN 1 1
Liu, Yanzhang Liaoning, CN 6 14
Luo, Zhiyuan Guangdong, CN 5 14
Ma, Jiajiong Liaoning, CN 1 1
Song, Xiaowu Guangdong, CN 1 1
Wang, Xueling Liaoning, CN 4 1
Zhang, Yixun Liaoning, CN 1 1

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