利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

960 条记录 (耗时 0.034 秒)

    VALVE ASSEMBLY WITH ISOLATION VALVE VESSEL
    2.
    发明申请
    VALVE ASSEMBLY WITH ISOLATION VALVE VESSEL 有权

    公开(公告)号：US20210287815A1

    公开(公告)日：2021-09-16

    申请号：US17332030

    申请日：2021-05-27

    申请人： BWXT mPower, Inc.

    发明人： John D. Malloy, III ,  Michael J. Edwards

    IPC分类号： G21C19/04 ,  G21C9/00 ,  G21C13/036 ,  G21C13/10

    摘要： Apparatuses for reducing or eliminating Type 1 LOCAs in a nuclear reactor vessel. A nuclear reactor including a nuclear reactor core comprising a fissile material, a pressure vessel containing the nuclear reactor core immersed in primary coolant disposed in the pressure vessel, and an isolation valve assembly including, an isolation valve vessel having a single open end with a flange, a spool piece having a first flange secured to a wall of the pressure vessel and a second flange secured to the flange of the isolation valve vessel, a fluid flow line passing through the spool piece to conduct fluid flow into or out of the first flange wherein a portion of the fluid flow line is disposed in the isolation valve vessel, and at least one valve disposed in the isolation valve vessel and operatively connected with the fluid flow line.

    Methods related to valve actuators having motors with peek-insulated windings
    3.
    发明授权
    Methods related to valve actuators having motors with peek-insulated windings 有权

    公开(公告)号：US10923240B2

    公开(公告)日：2021-02-16

    申请号：US15565643

    申请日：2015-04-10

    申请人： Flowserve Management Company

    发明人： Nathan J. Sochor ,  David Breeding ,  Kyle Ramsey

    IPC分类号： G21C15/18 ,  H01B3/42 ,  G21C9/00 ,  H01B3/40 ,  H01B3/30

    摘要： A method of operating a nuclear reactor includes operating a valve actuator to open and close a valve in fluid communication with a nuclear reactor fluid control system. The valve actuator includes a motor having windings of magnet wire. The magnet wire includes a layer of insulating material disposed over a conductor. The layer of insulating material comprises polyetheretherketone (PEEK) and has a thickness between about 0.025 mm and about 0.381 mm. A method of replacing a valve actuator motor with such a motor having windings formed of PEEK-insulated magnet wire is also disclosed. A method of coupling a valve actuator with such a motor having windings formed of PEEK-insulated magnet wire to a valve is also disclosed.

    Passive nitrogen injecting device for nuclear reactor coolant pump
    5.
    发明授权
    Passive nitrogen injecting device for nuclear reactor coolant pump 有权

    公开(公告)号：US10249394B2

    公开(公告)日：2019-04-02

    申请号：US15308260

    申请日：2014-07-22

    申请人： KOREA HYDRO & NUCLEAR POWER CO., LTD.

    发明人： Ho Rim Moon ,  Sang Hee Kang ,  Young Sheop Park ,  Han Gon Kim

    IPC分类号： G21C15/18 ,  G21C9/00 ,  G21C17/02 ,  G21C17/028 ,  F16K17/19 ,  F16K17/00

    摘要： The present invention relates to a passive nitrogen injecting device for a nuclear reactor coolant pump, the device comprising: a nitrogen supply unit for supplying nitrogen; a pressure control valve for controlling the supply of nitrogen from the nitrogen supply unit according to pressure; an accumulator for filling the nitrogen supplied through the pressure control valve at a set pressure, and supplying the filled nitrogen in the event that an accident involving coolant loss occurs; and an isolation valve for controlling the supply of the nitrogen from the accumulator into a seal housing of a nuclear reactor coolant pump. The present invention uses an accumulator so as to be able to supply nitrogen by using the pressure in the accumulator without the supply of external power in the event of an accident involving coolant loss, and therefore has the effect of being able to improve safety.