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1. 发明授权

US11289222B2 Method and device for unlatching control rod drive shafts in pressurized water reactors 有权
公开(公告)号：US11289222B2
公开(公告)日：2022-03-29
申请号：US15923764
申请日：2018-03-16
申请人： Framatome Inc.
发明人： Alex Boutin
IPC分类号： G21C19/115 , G21C19/105 , G21C19/11 , G21C7/117
摘要： An unlatching tool configured for actuating a movable section of a control rod drive shaft in a pressurized water reactor includes a base; a gripper assembly configured for gripping the movable section of the control rod drive shaft; a rod movably connecting the gripper assembly to the base; and a mechanical actuator fixed to the base and configured for rotating the rod to raise and lower the gripper assembly. A method for actuating a movable section of a control rod drive shaft includes installing an unlatching tool on the control rod drive shaft; latching the unlatching tool to a stationary section of the control rod drive shaft; and raising a rod connected to a gripper assembly to cause the gripper assembly to grip the movable section and move the movable section upward.

2. 发明申请

US20210296016A1 FUEL ASSEMBLY HANDLING DEVICE AND HANDLING ASSEMBLY COMPRISING SUCH A DEVICE 有权
公开(公告)号：US20210296016A1
公开(公告)日：2021-09-23
申请号：US17259916
申请日：2019-07-10
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES , SEIV
发明人： Bernard GUILLOU , David ROUSSEAU
IPC分类号： G21C19/105 , G21C19/04 , G21C19/32
摘要： A handling device for a nuclear fuel assembly includes a body; gripping means capable of cooperating with a fuel assembly so as to grasp or release the assembly; control means for controlling the gripping means capable of controlling the gripping means between a grasping position and a releasing position of the assembly, and vice versa; suction means capable of generating a suction of a cooling gas through the handling device and through the assembly when it is grasped by the device. A handling assembly for a nuclear fuel assembly, comprising: a handling device, a receiving support capable of receiving a fuel assembly and capable of cooperating with the handling device.

3. 发明申请

US20090129528A1 Method and apparatus for permissive control of a mast and grapple 有权
标题翻译：用于桅杆和抓斗的允许控制的方法和装置
公开(公告)号：US20090129528A1
公开(公告)日：2009-05-21
申请号：US11984276
申请日：2007-11-15
申请人： Michael Johnson
发明人： Michael Johnson
IPC分类号： G21C19/105
CPC分类号： G21C19/20 , G01D5/2515 , G21C17/00 , G21C19/105 , G21D3/001
摘要： A method and apparatus for the permissive control of a mast and fuel grapple to be used in the movement of reactor fuel components, including fuel assemblies, single blade and double blade guides, to be used in a Boiling Water Reactor (BWR) nuclear reactor. The Permissive Control System reduces the chance of human error associated with the movement of reactor components by assisting in controlling the location (plant coordinate) of the mast for picking-up and dropping-off reactor components, the sequence of reactor component movements, the orientation (angular rotation) of the mast and fuel grapple, the raising and lowering of the grapple, and the opening and closing of the fuel grapple.
摘要翻译：一种用于在用于沸腾反应堆（BWR）核反应堆中的反应堆燃料部件（包括燃料组件，单叶片和双叶片引导件）的运动中的桅杆和燃料抓斗的允许控制的方法和装置。允许控制系统通过帮助控制桅杆的位置（工厂坐标）来控制反应器部件的拾取和脱落，反应器部件移动的顺序，方向（角度旋转），燃料抓斗的提升和下降以及燃料抓斗的打开和关闭。

4. 发明申请

US20050135540A1 Fuel assembly nozzleless handling tool and method 有权
标题翻译：燃油组件无喷嘴处理工具及方法
公开(公告)号：US20050135540A1
公开(公告)日：2005-06-23
申请号：US10714756
申请日：2003-11-17
申请人： George Pabis , Darel Clark , Anthony Pugh , Raymond King
发明人： George Pabis , Darel Clark , Anthony Pugh , Raymond King
IPC分类号： G21C19/19 , G21C19/105 , G21C19/20 , G21C19/00
CPC分类号： G21C19/20 , G21C19/105 , G21Y2002/40 , G21Y2004/501
摘要： A device and method to move a fuel assembly of a nuclear reactor, wherein the device eliminates the potential for dropping the fuel assembly due to stress corrosion cracking of the upper guide thimble sleeves that attach the top nozzle to guide thimbles.
摘要翻译：一种用于移动核反应堆的燃料组件的装置和方法，其中该装置消除了由于附接顶部喷嘴以引导套管的上导向套管套管的应力腐蚀开裂而使燃料组件掉落的可能性。

5. 发明授权

US5570399A Control rod and supporting metal gripping apparatus and method of withdrawing same 失效
标题翻译：控制杆和支撑金属夹持装置及其取出方法
公开(公告)号：US5570399A
公开(公告)日：1996-10-29
申请号：US607198
申请日：1996-02-26
申请人： Kazuo Sakamaki
发明人： Kazuo Sakamaki
IPC分类号： G21C19/20 , G21C19/105 , G21C19/11 , G21C19/10
CPC分类号： G21C19/105 , G21Y2002/201 , G21Y2002/202 , G21Y2002/303 , G21Y2004/30 , G21Y2004/501
摘要： A control rod and fuel supporting member gripping apparatus for gripping a fuel supporting member and a control rod is disposed in a reactor pressure vessel. The fuel supporting member is mounted on a core supporting plate and has fuel assembly supporting holes in which the bottom portions of fuel assemblies are inserted. The control rod is detachably connected with a control rod driving mechanism through a bayonet coupling and is passed through a control rod passage so as to be lifted up and down in order to remove the fuel supporting member and the control rod from the core supporting plate and the control rod driving mechanism. The control rod and fuel supporting member gripping apparatus comprises a gripping apparatus body hoisted vertically liftably in an installed state within the reactor pressure vessel, a fuel supporting member gripping device disposed at a portion below the gripping apparatus body, a control rod gripping device device disposed at a portion below the gripping apparatus body to be liftable up and down and rotatable with respect to the gripping apparatus body, and a rotating mechanism for rotating the control rod gripping device.In withdrawing the control rod and fuel supporting member from the reactor pressure vessel, the fuel supporting member is raised to a height above the control rod and is prevented from rotating, the control rod is thereafter rotated, and the fuel supporting member and the control rod are withdrawn from the reactor pressure vessel substantially at the same time.
摘要翻译：用于夹持燃料支撑构件和控制杆的控制杆和燃料支撑构件夹持装置设置在反应堆压力容器中。燃料支撑构件安装在芯支撑板上并且具有燃料组件支撑孔，燃料组件的底部插入其中。控制杆通过卡口式联接器与控制杆驱动机构可拆卸地连接，并通过控制杆通道以便上下升降，从而从燃料支撑板上卸下燃料支撑部件和控制杆; 控制杆驱动机构。控制杆和燃料支撑构件夹持装置包括在反应堆压力容器内以安装状态竖直提升的夹持装置本体，设置在夹持装置主体下方的部分的燃料支撑构件夹持装置，设置有控制棒夹持装置装置在夹持装置本体的下方可相对于夹持装置主体上下移动并旋转的部分，以及用于使控制棒夹持装置旋转的旋转机构。在从反应堆压力容器中取出控制棒和燃料支撑构件时，燃料支撑构件升高到控制杆上方的高度，并且防止其旋转，此后控制杆旋转，并且燃料支撑构件和控制杆基本上同时从反应器压力容器中取出。

6. 发明授权

US5420899A Grapple for a fuel bundle channel 失效
标题翻译：用于燃料束通道的抓斗
公开(公告)号：US5420899A
公开(公告)日：1995-05-30
申请号：US247448
申请日：1994-05-23
申请人： Edward G. Apple, Jr. , Harold B. King
发明人： Edward G. Apple, Jr. , Harold B. King
IPC分类号： G21C3/33 , G21C19/105 , G21C19/19 , G21C21/00 , G21C19/00
CPC分类号： G21C19/105 , G21C3/33 , G21C3/3315 , G21Y2002/302 , G21Y2002/40 , G21Y2004/30 , G21Y2004/501 , Y02E30/40
摘要： A grapple is provided for use with a fuel bundle channel of a nuclear reactor wherein the channel is provided with a pair of gussets in opposite corners of an upper end of the channel, each gusset having a hole therein. The grapple includes a pair of lever arms, each provided with a lifting foot at a lower end of the respective lever arm. The lever arms are movable in opposite directions to a channel lifting position wherein the channel gripper of each lever arm is located under a respective one of the pair of channel gussets. The channel lifting foot of each lever arm includes a pair of laterally spaced lifting elements such that the lifting feet may engage the underside of the gusset on either side of the gusset hole. In addition, each channel lifting foot includes a secondary foot or slider captured between the pair of lifting elements. The slider includes a hole which can be aligned with the bolt hole in the gusset, permitting a ball lock pin to be inserted into the holes to thereby securely attach the lifting feet to the channel gussets.
摘要翻译：提供了一种用于核反应堆的燃料束通道的抓斗，其中通道在通道的上端的相对的角部设置有一对角撑板，每个角撑板在其中具有孔。抓斗包括一对杠杆臂，每个杠杆臂在相应的杠杆臂的下端设置有提升脚。杠杆臂可以相对于通道提升位置相反方向移动，其中每个杠杆臂的通道夹持器位于该对通道角撑板中的相应一个下方。每个杠杆臂的通道提升脚包括一对横向间隔开的提升元件，使得提升脚可以在角撑板孔的任一侧上接合角撑板的下侧。此外，每个通道提升脚包括捕获在该对提升元件之间的次级脚或滑块。滑块包括可与角撑板中的螺栓孔对准的孔，允许将球锁定销插入孔中，从而将提升脚牢固地附接到通道角撑板。

7. 发明授权

US5329563A Control rod latch tool 失效
标题翻译：控制杆锁定工具
公开(公告)号：US5329563A
公开(公告)日：1994-07-12
申请号：US98887
申请日：1993-07-29
申请人： Bengt I. Baversten
发明人： Bengt I. Baversten
IPC分类号： G21C7/16 , G21C19/105 , G21C19/20 , G21C7/00 , G21C19/00
CPC分类号： G21C19/105 , G21C19/207 , G21C19/20 , G21Y2002/201 , G21Y2002/206 , G21Y2002/302 , G21Y2002/40 , G21Y2004/301
摘要： A latch tool features two elongate arms which extend down along either side of a control rod. Rotatable actuating rods are mounted on the arms. The upper ends of the actuating rods are provided with cranks which engage in slots formed in an actuating disc. As the disc is rotated, the cranks rotate the actuating rods and swing cam-like members, which are fixed to the rods, into position under an unlatching handle. In the preferred embodiments, the actuating disc is threaded onto the exterior of a rotatable input member, so that after the cam-like members are swung into position, the actuating disc threads its way up the input member in a manner which pulls the cam-like members upwardly and pulls the unlatching handle. In addition to the cam-like members which actuate the unlatching handle, lifting cam-like members may additionally be provided to fit in under a lifting handle of the control rod, and facilitate lifting of the control rod out of its position.
摘要翻译：闩锁工具具有沿控制杆的任一侧向下延伸的两个细长臂。可旋转的致动杆安装在臂上。致动杆的上端设置有曲柄，其接合形成在致动盘中的槽。当盘旋转时，曲柄使致动杆旋转并将固定到杆的摆动凸轮状构件转动到解锁手柄下方的位置。在优选实施例中，致动盘被旋拧到可旋转输入构件的外部，使得在凸轮状构件摆动到位之后，致动盘以拉动凸轮形构件的方式向上移动输入构件，向上并拉动解锁手柄。除了致动解锁手柄的凸轮状构件之外，还可以提供提升凸轮状构件以配合在控制杆的提升手柄下方，并且便于控制杆从其位置的提升。

8. 发明授权

US4772446A Gripper assembly for inserting and removing burnable absorber rods and thimble plugs in a nuclear reactor fuel assembly 失效
标题翻译：用于在核反应堆燃料组件中插入和移除可燃吸收棒和套筒塞的夹具组件
公开(公告)号：US4772446A
公开(公告)日：1988-09-20
申请号：US932244
申请日：1986-11-19
申请人： Robert E. Meuschke
发明人： Robert E. Meuschke
IPC分类号： G21C21/00 , G21C3/334 , G21C19/105 , G21C19/10
CPC分类号： G21C3/334 , G21C19/105 , G21Y2002/201 , G21Y2002/302 , G21Y2002/304 , G21Y2004/30 , G21Y2004/403 , G21Y2004/501 , Y02E30/40 , Y10S294/906 , Y10T29/531 , Y10T29/53657
摘要： Apparatus for releasably engaging an elongated member that is releasably connected to the top nozzle of a nuclear reactor fuel assembly. The top nozzle has an adapter plate disposed at its lower end having at least one passageway therethrough through which the elongated member is disposed. The elongated member has a releasable latching structure at one end that is able to be engaged by the apparatus, having at least one latching member movable between a latched position in which the latching member is able to engage said adapter plate and secure the absorber rod in a stationary relationship with respect to the adapter plate and an unlatched position in which the latching member is able to disengage from said adapter plate so that the elongated member be removed from the fuel assembly. The apparatus comprises a hollow releasing member for moving the latching member of the latching structure between its latched position and its unlatched position, an engaging member connected to the releasing member and extending downwardly through the hollow portion of the releasing member, and an actuating member extending downwardly through the hollow portion of the releasing member and coacting with the engaging member to releasably engage the latching structure.
摘要翻译：用于可释放地接合可释放地连接到核反应堆燃料组件的顶部喷嘴的细长构件的装置。顶部喷嘴具有设置在其下端的适配器板，其具有穿过其中的至少一个通道，细长构件通过该通道布置。细长构件在一端具有可释放的闩锁结构，其能够被该装置接合，具有至少一个闩锁构件，该锁定构件可在闩锁位置之间移动，在闩锁位置中闩锁构件能够接合所述适配器板并将吸收杆固定在相对于适配器板的固定关系和解锁位置，其中闩锁构件能够与所述适配器板脱离，使得细长构件从燃料组件移除。该装置包括中空释放构件，用于将闩锁构件的闩锁构件在其闩锁位置和其解锁位置之间移动;接合构件，其连接到释放构件并向下延伸穿过释放构件的中空部分;以及致动构件，向下穿过释放构件的中空部分并与接合构件共同作用以可释放地接合闩锁结构。

9. 发明授权

US4753769A Device and method for retaining a linearly movable element in a nuclear reactor 失效
标题翻译：用于将线性可移动元件保持在核反应堆中的装置和方法
公开(公告)号：US4753769A
公开(公告)日：1988-06-28
申请号：US813332
申请日：1985-12-26
申请人： Fernand Savary
发明人： Fernand Savary
IPC分类号： G21C7/27 , G21C7/12 , G21C7/14 , G21C19/105 , G21C19/19
CPC分类号： G21C7/12 , G21C19/105 , G21Y2002/303 , G21Y2002/40 , G21Y2004/501 , Y02E30/39
摘要： Device and method for retaining a linearly movable element in a nuclear reactor. The device comprises, for each shaft, a base fixed to the top part of the reactor internals and coaxial with a shaft guide tube; several grippers or catches spaced apart about the axis of the base and mounted for pivotal movement about a horizontal axis towards a position into and out of engagement with a portion, having circumferential grooves, of the shaft contained in the tube; a slide movable axially on the base towards a top position where it causes engagement of the catches in a groove of the rod, and out of such position; and springs bearing on the base and tending to engage the catches on the shaft. The slide is dimensioned so as to be held by the corresponding sleeve projecting through the reactor vessel cover in a position sufficiently distant from the low position for the catches to be released, whatever the temperature in the reactor.
摘要翻译：用于将线性可移动元件保持在核反应堆中的装置和方法。该装置包括：固定到反应器内部件的顶部并与轴引导管同轴的每个轴的底座; 几个夹持器或卡爪围绕基座的轴线间隔开并且安装成围绕水平轴线枢转运动以进入与包含在管中的轴的具有周向凹槽的部分接合的位置; 可滑动地在底座上朝向顶部位置移动的滑块，在该顶部位置，卡盘将其卡在杆的凹槽中并脱离该位置; 并且弹簧支撑在基座上并且倾向于将卡钩接合在轴上。滑动件的尺寸被设计成被相应的套筒保持在与反应器容器盖相反的位置上，该位置与反应器内的任何温度无关，该位置足够远离低位置以释放卡子。

10. 发明授权

US4511531A Transfer of nuclear reactor component assemblies 失效
公开(公告)号：US4511531A
公开(公告)日：1985-04-16
申请号：US366631
申请日：1982-04-08
申请人： Kenneth J. Swidwa , Leonard P. Hornak , Edward F. Kowalski
发明人： Kenneth J. Swidwa , Leonard P. Hornak , Edward F. Kowalski
IPC分类号： G21C19/18 , G21C19/02 , G21C19/105 , G21C19/16 , G21C19/19 , G21C19/10
CPC分类号： G21C19/02 , G21C19/105 , G21C19/16 , Y10S294/906 , Y10T403/59
摘要： Apparatus for transferring, not only the fuel assemblies, but other component assemblies including control-rod assemblies, thimble-plug assemblies, poison assemblies and the like during refueling of a nuclear reactor. The apparatus includes an outer mast for guiding and protecting the component assemblies which are transferred, an inner mast movable vertically within the guiding mast. The inner mast has grippers for engaging and lifting or lowering fuel assemblies. The outer mast has internal grooved rollers along its length. The inner mast is formed at oppositely facing channels held in a rigid assembly by plates to which the channels are secured. Opposite corners formed by the flanges and the webs of the channels penetrate into the grooves of the rollers and the inner mast is guided and held in position by the rollers. The apparatus also includes an elongated tube within the inner mast movable vertically relative to the inner mast. The tube has a grapple or gripper for engaging and lifting or lowering the component assemblies other than the fuel assemblies. The tube is penetrated by an actuator rod which locks the grapple to the component assemblies. The tube is driven upwardly or downwardly by a winch. The tube carries a primary set of lugs. The inner mast has a plate with an opening through which the lugs pass when the tube alone is driven upwardly. The plate carries a pivotal yoke which is movable between a first or closed position in which the yoke extends over the opening and a second or open position when it does not extend over the opening. In the closed position the yoke is engageable by the primary lugs so that when the tube is raised the inner mast is also raised. The tube also has secondary lugs. The inner mast carries a stop engageable by the secondary lugs when the tube is in a vertical position in which it has raised a component assembly within the masts. The engagement of the secondary lugs and plate serves to pull the inner mast into the guiding mast.

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