公开(公告)号：WO1992001292A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004634

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DILLMANN, Charles, Warner

IPC: G21C07/16

CPC classification number: G21C15/243 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C7/16 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

Abstract: A drive (10) for positioning a control rod (12) in nuclear reactor core (104) is disclosed. The drive includes a turbine rotor (34) joined to hollow spindle (26) in a housing. The spindle has a piston (82) disposed therein and a piston rod (82b) extending therefrom and through a bottom end of the spindle for being joined to the rod. A pressurized fluid is provided into the spindle (26) for exerting a pressure force against the piston (82) for moving the piston for selectively gripping the control rod (12). Interruption of the pressurized fluid to the spindle causes ungripping of the control rod.

Abstract translation: 公开了一种用于将控制杆（12）定位在核反应堆堆芯（104）中的驱动装置（10）。 该驱动器包括与壳体中的中空心轴（26）连接的涡轮机转子（34）。 主轴具有设置在其中的活塞（82）和从其延伸并穿过主轴的底端的活塞杆（82b），用于与杆接合。 加压流体被提供到主轴（26）中，用于向活塞（82）施加压力，用于移动活塞以选择性地夹持控制杆（12）。 加压流体到主轴的中断会导致控制棒的脱落。

公开(公告)号：WO1992001297A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004645

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  NAZARENO, Edgardo, Villar ,  DILLMANN, Charles, Warner

IPC: G21C09/00

CPC classification number: G21C15/243 ,  F04D7/08 ,  F04D13/04 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C15/18 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31

Abstract: A boiling water nuclear power plant (100) includes a reactor core isolation cooling (RCIC) system in which a turbine (146) used to pump feedwater to the reactor also drives a generator (200). The generator (200) is used to drive RCIC components, such as a room cooler (160) and control electronics, during station blackout.

公开(公告)号：WO1992001291A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004646

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DILLMANN, Charles, Warner

IPC: G21C07/10

CPC classification number: G21C15/243 ,  F04D7/08 ,  F04D13/16 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C7/22 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

Abstract: A reactivity control system includes a reservoir (42) containing a liquid nuclear poison (44), at least one stationary, hollow control blade (32) extending vertically into a reactor core (14), and a poison conduit (52) disposed in flow communication between the reservoir (42) and control blade (32) for channelling the poison (44) between the reservoir (42) and control blade (32). The level of the poison in the control blade is controlled for selectively varying nuclear reactivity in the core.

公开(公告)号：WO1992001295A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004640

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DILLMANN, Charles, Warner ,  TOWNSEND, Harold, Edward ,  NESBITT, Loyd, Brice

IPC: G21C09/00

CPC classification number: G21C15/243 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C9/004 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31

Abstract: The wetwell space in a suppression pool (26) of a nuclear reactor containment is continuously ventilated by exhausting gas therefrom, while at the same time, during normal system operation atmospheric air from a source of same is admitted to the wetwell but such admission being blocked during a LOCA. All exhaust flow from the wetwell is conveyed through a conduit that outlets at a remote elevated location in the atmosphere. All exhaust flow through the conduit (37) is before outletting therefrom passed through gas treatment operation (60) wherein any particulates in the gas mixture are removed. Further treatment of the gas with charcoal to adsorb noble gases can be carried out.

公开(公告)号：WO1992001289A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004633

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  FENNERN, Larry, Edgar ,  DILLMANN, Charles, Warner ,  TOWNSEND, Harold, Edward ,  CHALLBERG, Roy, Clifford ,  WILKINS, Daniel, Raymond ,  NESBITT, Loyd, Brice ,  CONGDON, Steven, Paul ,  FAWCETT, Russell, Morgan ,  GLUNTZ, Douglas, Marvin ,  SIMON, Barry, Howard ,  O'NEIL, Timothy, Joseph

IPC: G21C03/14

CPC classification number: G21C15/243 ,  F04D7/08 ,  F04D13/04 ,  F04D29/605 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y10S376/917

Abstract: A reactor core (104) includes upper and lower matrices of fuel bundles. Fuel rods in the upper matrix (126) have their plenums oriented upward, while fuel rods in the lower matrix (124) have their plenums oriented downward. Refueling involves removal of a first bundle in the upper matrix (126), removal and retirement of the bundle in the lower matrix (124) directly below the original position of the first bundle, inversion and installation of the first bundle in the lower matrix, and installation of a new bundle in the upper matrix. The new bundle is installed plenum-side up. The bi-level core (104) provides greater flexibility in repositioning fuel bundles for longer burnups and lower high-level waste. In particular, problems with axial spectral variations in neutron flux can be compensated using the disclosed core arrangement and refueling procedure.

公开(公告)号：WO1992001298A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004641

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DILLMANN, Charles, Warner

IPC: G21C15/22

CPC classification number: F04D29/047 ,  F04D7/08 ,  F04D9/06 ,  F04D13/043 ,  F04D13/12 ,  F04D15/0005 ,  F04D29/426 ,  F04D29/448 ,  F04D29/669 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C15/24 ,  G21C15/243 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31

Abstract: A recirculation system (10) is disclosed for driving reactor coolant water (114), contained in an annular downcomer (118) defined between a reactor vessel and a reactor core spaced radially inwardly therefrom. The system includes a plurality of circumferentially spaced pumps (12), disposed in the downcomer (118), each pump including an inlet for receiving coolant water from the downcomer as pump inlet flow, and an outlet for discharging the pressurized water. The recirculation system firstly increases the pressure of the pump inlet flow at the pump inlet before being sucked into the pump for being further pressurized by the pump.

公开(公告)号：WO1992001296A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004642

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DILLMANN, Charles, Warner

IPC: G21C09/00

CPC classification number: G21C15/243 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C7/22 ,  G21C9/033 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

Abstract: A method and system (10) for controlling nuclear reactivity in a nuclear reactor are disclosed. The method includes maintaining a nuclear poison solution at an initial poison pressure (P1) less than the steam pressure within the reactor vessel. The method further includes channeling a pressurizing fluid into the holding tank (12) for pressurizing the poison solution to a pressure greater than the initial pressure thereof, and draining by gravity the poison solution from the holding tank and into the reactor vessel for mixing with the water to reduce reactivity in the core. The system includes the holding tank (12) apparatus for channeling the pressurizing fluid (18) from the reactor vessel (100) to the holding tank, apparatus for channeling the poison solution (28) from the holding tank by gravity into the reactor vessel, and a controller (42) for opening a normally closed pressurizing valve (26) and a normally closed drain valve (40) to allow flow of pressurizing fluid to, and the drained poison solution from, the holding tank through the respective channeling apparatus.

公开(公告)号：WO1992001294A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004643

申请日：1991-06-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： GENERAL ELECTRIC COMPANY ,  DILLMANN, Charles, Warner

IPC: G21C07/16

CPC classification number: G21C15/243 ,  G21C1/084 ,  G21C1/28 ,  G21C5/02 ,  G21C7/16 ,  G21C15/24 ,  G21Y2002/201 ,  G21Y2002/601 ,  G21Y2004/40 ,  Y02E30/31 ,  Y02E30/39

Abstract: A drive (10) for positioning a control rod (12) in a nuclear reactor is disclosed. The drive (10) includes a housing (112) having a piston disposed therein, with a piston rod extending from the piston and through the housing for being joinable to the control rod. A driving fluid is provided into the housing for exerting a pressure force against the piston for moving the piston and the control rod. The output requirements for the driving fluid are varied in response to the position of the piston for selectively controlling intermediate positons of the piston.

Abstract translation: 公开了一种用于将控制杆（12）定位在核反应堆中的驱动装置（10）。 驱动器（10）包括具有设置在其中的活塞的壳体（112），活塞杆从活塞延伸并且通过壳体以可连接到控制杆。 驱动流体被提供到壳体中以对活塞施加压力以移动活塞和控制杆。 驱动流体的输出要求响应于用于选择性地控制活塞的中间位置的活塞的位置而变化。