Patents by Inventor Xingjiang Chen

Xingjiang Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Main pump shaft seal water injection system of a nuclear power station
    Patent number: 10510454
    Abstract: 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.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 17, 2019
    Assignees: China Nuclear Power Engineering Co., Ltd., Shenyang Blower Group Nuclear Power Pumps Co., Ltd., China General Nuclear Power Group
    Inventors: Xingjiang Chen, Zhiyuan Luo, Yuangang Duan, Zhongshuang Li, Wei Fu, Guohui Cong, Zhao Chen, Xiaowu Song, Yanzhang Liu, Xueling Wang, Jiajiong Ma, Yixun Zhang
  • MAIN PUMP SHAFT SEAL WATER INJECTION SYSTEM OF A NUCLEAR POWER STATION
    Publication number: 20180005716
    Abstract: 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.
    Type: Application
    Filed: December 9, 2016
    Publication date: January 4, 2018
    Inventors: Xingjiang Chen, Zhiyuan Luo, Yuangang Duan, Zhongshuang Li, Wei Fu, Guohui Cong, Zhao Chen, Xiaowu Song, Yanzhang Liu, Xueling Wang, Jiajiong Ma, Yixun Zhang