System for removing foreign objects from nuclear reactor vessel

    公开(公告)号:US10796809B2

    公开(公告)日:2020-10-06

    申请号:US15847962

    申请日:2017-12-20

    发明人: Liping Deng

    摘要: A system with function of bending and elongation is used for discharging foreign matters from nuclear reactor vessel. The system includes an operating rod which includes a suction pipe, a bendable rod section connected to the suction pipe, and an expandable rod section connected to the bendable rod section; and a drainage pipe. A suction opening is disposed at the suction pipe and an electric valve is disposed at a connection of the suction opening and the suction pipe. A filter mesh is disposed in the suction pipe; a suction pump is disposed in the suction pipe; a touch switch is disposed on the filter mesh. A water inlet of the suction pump is connected to the suction opening, a water outlet of the suction pump is connected to the outside space of the suction pipe though the drainage pipe, and the electric valve is controlled by the touch switch.

    Containment cooling apparatus
    2.
    发明授权

    公开(公告)号:US10784003B2

    公开(公告)日:2020-09-22

    申请号:US15821929

    申请日:2017-11-24

    发明人: Liping Deng

    IPC分类号: G21C15/18 G21C9/012 G21C15/12

    摘要: A containment cooling apparatus includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank via a first communicating pipe, wherein the spray header is disposed on an outside of the containment for spraying cooling water to an outer wall of the containment; a bell shaped shield covering the containment, wherein the cooling water tank is disposed on a top portion of the shield; a space formed between an inner wall of the shield and the outer wall of the containment, wherein the spray header is disposed in the space; an exhaust hole disposed on the top portion of the shield; and a water separator disposed in the exhaust hole and/or the space. The containment cooling apparatus has higher utilization of coolant.

    Device for removing foreign objects from nuclear reactor vessel

    公开(公告)号:US10784005B2

    公开(公告)日:2020-09-22

    申请号:US15838399

    申请日:2017-12-12

    发明人: Liping Deng

    摘要: A device for removing foreign objects from nuclear reactor vessel includes a suction pipe; a suction opening structure disposed at a lower end of the suction pipe, an electric valve disposed at a connection of the suction pipe and the suction opening structure, a filter mesh and a suction pump sequentially located in the suction pipe and above the electric valve. The suction opening structure has a suction opening thereon, a water inlet of the suction pump is communicated with the suction opening, and a water outlet of the suction pump is communicated with the outside space of the suction pipe though a drainage pipe. The device further includes a touch switch disposed on the filter mesh which is in operative connection with the electric valve. A foreign object impact force to the filter mesh triggers the touch switch to close which causes the electric valve to close.

    Nuclear reactor cooling system
    7.
    发明授权

    公开(公告)号:US10784002B2

    公开(公告)日:2020-09-22

    申请号:US15821926

    申请日:2017-11-24

    发明人: Liping Deng

    摘要: A nuclear reactor cooling system includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank through a first communicating pipe; and an air tank disposed inside the containment; wherein the spray header is disposed outside the containment and used for spraying cooling water to the outer wall of the containment; the cooling water tank is a closed container, and the air tank is connected to the top portion of the cooling water tank through a second communicating pipe. The nuclear reactor cooling system has higher reliability in cooling containment.

    DEVICE FOR REMOVING FOREIGN MATTERS IN NUCLEAR REACTOR VESSEL

    公开(公告)号:US20180358140A1

    公开(公告)日:2018-12-13

    申请号:US15838399

    申请日:2017-12-12

    发明人: Liping Deng

    IPC分类号: G21D1/04

    CPC分类号: G21D1/04 G21C19/20 G21C19/307

    摘要: A device for removing foreign matters in nuclear reactor vessel comprises a suction pipe; a suction opening structure disposed at a lower end of the suction pipe, wherein the suction opening structure has a suction opening thereon; an electric valve disposed at a connection of the suction pipe and the flared pipe; and a filter mesh and a suction pump sequentially located in the suction pipe and above the electric valve; wherein a water inlet of the suction pump is communicated with the suction opening, a water outlet of the suction pump is communicated with the outside space of the suction pipe though a drainage pipe, and the electric valve is controlled by the touch switch. The device has a simple structure and is easy for operation, through which foreign matters can be taken out of the reactor vessel even though their specific location is not known.

    NUCLEAR REACTOR COOLING SYSTEM
    9.
    发明申请

    公开(公告)号:US20180358138A1

    公开(公告)日:2018-12-13

    申请号:US15821926

    申请日:2017-11-24

    发明人: Liping Deng

    摘要: A nuclear reactor cooling system includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank through a first communicating pipe; and an air tank disposed inside the containment; wherein the spray header is disposed outside the containment and used for spraying cooling water to the outer wall of the containment; the cooling water tank is a closed container, and the air tank is connected to the top portion of the cooling water tank through a second communicating pipe. The nuclear reactor cooling system has higher reliability in cooling containment.

    Containment Cooling Apparatus
    10.
    发明申请

    公开(公告)号:US20180358135A1

    公开(公告)日:2018-12-13

    申请号:US15821929

    申请日:2017-11-24

    发明人: Liping Deng

    摘要: A containment cooling apparatus includes a cooling water tank disposed above a containment; a spray header connected to the cooling water tank via a first communicating pipe, wherein the spray header is disposed on an outside of the containment for spraying cooling water to an outer wall of the containment; a bell shaped shield covering the containment, wherein the cooling water tank is disposed on a top portion of the shield; a space formed between an inner wall of the shield and the outer wall of the containment, wherein the spray header is disposed in the space; an exhaust hole disposed on the top portion of the shield; and a water separator disposed in the exhaust hole and/or the space. The containment cooling apparatus has higher utilization of coolant.