Patents by Inventor Qianxue DING

Qianxue DING 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).

  • Gray control rod having a neutron absorber comprising terbium and dysprosium
    Patent number: 10650930
    Abstract: A gray control rod having a neutron absorber comprising terbium and dysprosium is provided. The neutron absorber comprises at least one first component and at least one second component, the reactivity worth of the first component increases as the service time of the neutron absorber increases, the reactivity worth of the second component decreases as the service time of the neutron absorber increases; the reactivity worth of the neutron absorber varying no more than 15% within the service time of the neutron absorber. By using the first component and the second component to form the neutron absorber, and adjusting the proportion of the respective components in the neutron absorber, the neutron absorber having a substantially planar reactivity worth loss characteristic can be obtained. The gray control rod and the assembly having required reactivity controlling ability can be obtained by increasing or decreasing the material dosage of the neutron absorber.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 12, 2020
    Assignee: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE
    Inventors: Junqiang Lu, Chuntao Tang, Hui Li, Bo Yang, Jiwei Li, Qianxue Ding, Libing Zhu, Jiazheng Liu
  • GRAY CONTROL ROD AND NEUTRON ABSORBER THEREOF, AND GRAY CONTROL ROD ASSEMBLY
    Publication number: 20160268008
    Abstract: A gray control rod, a neutron absorber thereof and a gray control rod assembly. The neutron absorber comprises at least one first component and at least one second component, the reactivity worth of the first component increases as the service time of the neutron absorber increases, the reactivity worth of the second component decreases as the service time of the neutron absorber increases; the reactivity worth of the neutron absorber varying no more than 15% within the service time of the neutron absorber. By using the first component and the second component to form the neutron absorber, and adjusting the proportion of the respective components in the neutron absorber, the neutron absorber having a substantially planar reactivity worth loss characteristic can be obtained. The gray control rod and the assembly having required reactivity controlling ability can be obtained by increasing or decreasing the material dosage of the neutron absorber.
    Type: Application
    Filed: October 25, 2013
    Publication date: September 15, 2016
    Applicant: Shanghai Nuclear Engineering Research & Design Institute
    Inventors: Junqiang LU, Chuntao TANG, Hui LI, Bo YANG, Jiwei LI, Qianxue DING, Libing ZHU, Jiazheng LIU