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1. 发明授权

US4941158A Nuclear reactivity control configuration 失效
标题翻译：核反应控制配置
公开(公告)号：US4941158A
公开(公告)日：1990-07-10
申请号：US330410
申请日：1989-03-30
申请人： Billy E. Bingham , Richard V. DeMars
发明人： Billy E. Bingham , Richard V. DeMars
IPC分类号： G21C7/10 , G21C7/103 , G21C7/11 , G21C7/113
CPC分类号： G21C7/103 , G21C7/113 , G21Y2002/201 , G21Y2004/10 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A neutron flux control component for a nuclear reactor. Thin, overlapping segments of highly neutron absorbing material are positioned in the core of a reactor. The self-shielding overlapping segments are moved relative to each other to vary the amount of exposed surface area of poison to control core reactivity and to provide power shaping within the reactor core. The poison segments are mounted to carriers in the form of close-fitting concentric cylinders or rods of V-shaped cross section.
摘要翻译：核反应堆的中子通量控制组件。高中子吸收材料的薄的，重叠的段被定位在反应器的核心中。自屏蔽重叠区段相对于彼此移动以改变暴露的毒物表面积的量以控制核心反应性并且在反应堆堆芯内提供功率整形。毒物段以紧密的同心圆柱体或V形横截面的棒的形式安装到载体上。

2. 发明授权

US4707329A Nuclear reactor control rod with uniformly changeable axial worth 失效
标题翻译：核反应堆控制棒具有均匀可变轴向价值
公开(公告)号：US4707329A
公开(公告)日：1987-11-17
申请号：US816780
申请日：1986-01-07
申请人： Thomas R. Freeman
发明人： Thomas R. Freeman
IPC分类号： G21C7/10 , G21C7/11 , G21C7/117 , G21C7/18 , G21C3/32
CPC分类号： G21C7/18 , G21C7/11 , G21Y2002/201 , G21Y2002/50 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A control rod for use in a nuclear reactor core to provide xenon compensation includes an elongated inner cylindrical member and an elongated outer cylindrical member surrounding the inner member. Each of the members is composed of axially-extending, alternating black poison and nonpoison regions. Also, the inner member is axially movable relative to the outer member to adjust the degree to which the poison regions of the members overlap with the nonpoison regions thereof and thereby change the overall worth of the rod in an axially uniform manner. The inner cylindrical member has a solid cross-sectional configuration, whereas the outer cylindrical member has an annular cross-sectional configuration and concentrically surrounds the inner member. Each of the poison regions in the members is about the same axial height, while each of the nonpoison regions is about the same axial height. The guide thimble of a fuel assembly in which the control rod is placed has an annular stop being sized to support a lower end of the outer member for retaining the outer member in a stationary position therein, whereas the stop has a central hole sized to allow passage of a lower end of the inner member therethrough in order to move the inner member axially relative the outer member to adjust the degree to which the poison regions of the members overlap with the nonpoison regions thereof and thereby change the overall worth of the rod.
摘要翻译：用于核反应堆堆芯以提供氙补偿的控制杆包括细长的内圆柱形构件和围绕内部构件的细长外圆柱形构件。每个构件由轴向延伸的，交替的黑色毒物和非刺激区域组成。此外，内部构件可相对于外部构件轴向移动，以调节构件的毒物区域与其非空间区域重叠的程度，从而以轴向均匀的方式改变杆的总体价值。内圆柱形构件具有实心的横截面构造，而外圆柱形构件具有环形横截面构造并且同心地围绕内构件。构件中的每个毒物区域都具有大致相同的轴向高度，而每个非弹性区域大致相同的轴向高度。其中放置控制棒的燃料组件的导向套管具有一个环形止动器，其大小适于支撑外部构件的下端，用于将外部构件保持在其中的静止位置，而止动件具有中心孔，内部构件的下端通过其中以便使内部构件相对于外部构件轴向移动，以调节构件的毒物区域与其非空间区域重叠的程度，从而改变杆的整体价值。

3. 发明授权

US2900316A Reactor control device 失效
标题翻译：电抗器控制装置
公开(公告)号：US2900316A
公开(公告)日：1959-08-18
申请号：US54110855
申请日：1955-10-17
申请人： KAUFMAN JR HAROLD B , ALBERT WEISS
发明人： KAUFMAN JR HAROLD B , ALBERT WEISS
IPC分类号： G21C7/11
CPC分类号： G21C7/11 , G21Y2002/201 , G21Y2004/30 , Y02E30/39

4. 发明申请

US20180190393A1 CONTROL ROD DAMPING SYSTEM 审中-公开
公开(公告)号：US20180190393A1
公开(公告)日：2018-07-05
申请号：US15858073
申请日：2017-12-29
申请人： NuScale Power, LLC.
发明人： Ross Douglas SNUGGERUD
IPC分类号： G21C7/20 , G21C7/11 , G21C7/117
CPC分类号： G21C7/20 , G21C3/322 , G21C3/3315 , G21C7/11 , G21C7/117 , G21C9/02 , Y02E30/38 , Y02E30/39
摘要： A damping area or “dash pot” on the upper ends of control rods absorb energy from dropped control rod assemblies without narrowing the diameter of guide tubes. As a result, coolant can freely flow through the guide tubes reducing boiling water issues. The dampening area reduces a separation distance between an outside surface of the control rod and an inside surface of the guide tubes decelerating the control rods when entering a top end of the guide tubes. In another example, the dampening area may be located on a drive shaft. The dampening area may have a larger diameter than an opening in a drive shaft support member that decelerates the drive shaft when dropped by a drive mechanism.

5. 发明授权

US4568515A Control system for a small fission reactor 失效
标题翻译：小型裂变反应堆的控制系统
公开(公告)号：US4568515A
公开(公告)日：1986-02-04
申请号：US699887
申请日：1985-02-08
申请人： James P. Burelbach , William J. Kann , James G. Saiveau
发明人： James P. Burelbach , William J. Kann , James G. Saiveau
IPC分类号： G21C7/11 , G21C7/10
CPC分类号： G21C7/11 , G21Y2002/301 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A system for controlling the reactivity of a small fission reactor includes an elongated, flexible hollow tube in the general form of a helical coiled spring axially positioned around and outside of the reactor vessel in an annular space between the reactor vessel and a surrounding cylindrical-shaped neutron reflector. A neutron absorbing material is provided within the hollow tube with the rate of the reaction controlled by the extension and compression of the hollow tube, e.g., extension of the tube increases reactivity while its compression reduces reactivity, in varying the amount of neutron absorbing material disposed between the reactor vessel and the neutron reflector. Conventional mechanical displacement means may be employed to control the coil density of the hollow tube as desired. In another embodiment, a plurality of flexible hollow tubes each containing a neutron absorber are positioned adjacent to one another in spaced relation around the periphery of the reactor vessel and inside the outer neutron reflector with reactivity controlled by the extension and compression of all or some of the coiled hollow tubes. Yet another embodiment of the invention envisions the neutron reflector in the form of an expandable coil spring positioned in an annular space between the reactor vessel and an outer neutron absorbing structure for controlling the neutron flux reflected back into the reactor vessel.
摘要翻译：用于控制小型裂变反应堆的反应性的系统包括细长的柔性中空管，螺旋形螺旋弹簧的一般形式，轴向位于反应器容器的周围和外部，位于反应器容器与周围的圆柱形中子反射器在中空管内设置中子吸收材料，其反应速率由中空管的延伸和压缩控制，例如，管的延伸增加反应性，同时其压缩降低反应性，改变设置的中子吸收材料的量在反应堆容器和中子反射器之间。可以根据需要使用常规的机械位移装置来控制中空管的线圈密度。在另一个实施例中，每个包含中子吸收器的多个柔性中空管以间隔开的方式邻近反应器容器的周边并且在外部中子反射器的内部以相反的方式定位，其反应性受到所有或一些螺旋中空管。本发明的另一个实施例设想了位于反应器容器和外部中子吸收结构之间的环形空间中的可膨胀螺旋弹簧形式的中子反射器，用于控制反射回到反应器容器中的中子通量。

6. 发明授权

US3945886A Control rod for nuclear reactor 失效
标题翻译：核反应堆控制棒
公开(公告)号：US3945886A
公开(公告)日：1976-03-23
申请号：US516471
申请日：1974-10-21
申请人： Nikolai Efimovich Derevyankin , Vladimir Ivanovich Evseev , Ivan Ilich Zhuchkov , Oleg Borisovich Samoilov , Alexandr Vasilievich Ovechkin
发明人： Nikolai Efimovich Derevyankin , Vladimir Ivanovich Evseev , Ivan Ilich Zhuchkov , Oleg Borisovich Samoilov , Alexandr Vasilievich Ovechkin
IPC分类号： G21C7/11 , G21C7/10
CPC分类号： G21C7/11 , G21Y2002/201 , G21Y2002/206 , G21Y2004/30 , Y02E30/39
摘要： A control rod for a nuclear reactor in an articulated form, and including a series of pivotally connected links. At least one of these links is disclosed, the endmost one, serves as a means for the collection of a gas, with the rest of the links containing a neutron absorbing material. Flexible members extend through pivotal joints between the links, establishing serial communication between the links and serving to convey the gas produced as a result of the absorption of neutrons by said material into said gas collection means.
摘要翻译：一种用于处于铰接形式的核反应堆的控制杆，并且包括一系列枢转连接的链节。这些链接中的至少一个被公开，最后一个链接用作收集气体的手段，其余链接包含中子吸收材料。柔性构件延伸通过连杆之间的枢转接头，建立连杆之间的串联连接并用于将由于所述材料吸收中子而产生的气体输送到所述气体收集装置中。

7. 发明公开

US20230162875A1 CONTROL ROD DAMPING SYSTEM 审中-公开
公开(公告)号：US20230162875A1
公开(公告)日：2023-05-25
申请号：US18104764
申请日：2023-02-01
申请人： NuScale Power, LLC
发明人： Ross Douglas Snuggerud
IPC分类号： G21C7/20 , G21C7/11 , G21C7/117 , G21C3/322
CPC分类号： G21C7/20 , G21C3/322 , G21C7/11 , G21C7/117 , G21C3/3315
摘要： A damping area or “dash pot” on the upper ends of control rods absorb energy from dropped control rod assemblies without narrowing the diameter of guide tubes. As a result, coolant can freely flow through the guide tubes reducing boiling water issues. The dampening area reduces a separation distance between an outside surface of the control rod and an inside surface of the guide tubes decelerating the control rods when entering a top end of the guide tubes. In another example, the dampening area may be located on a drive shaft. The dampening area may have a larger diameter than an opening in a drive shaft support member that decelerates the drive shaft when dropped by a drive mechanism.

8. 发明授权

US4581201A Flexible control rod for a nuclear reactor 失效
标题翻译：用于核反应堆的柔性控制棒
公开(公告)号：US4581201A
公开(公告)日：1986-04-08
申请号：US464002
申请日：1983-02-04
申请人： Bo Haggstrom , Erik Jonsson
发明人： Bo Haggstrom , Erik Jonsson
IPC分类号： G21C7/11 , G21C7/113 , G21C7/10
CPC分类号： G21C7/11 , G21Y2002/201 , G21Y2004/30 , Y02E30/39
摘要： A flexible control rod for a nuclear reactor is built up of first, second, third and fourth absorber wings which are arranged in a cruciform configuration. Each wing is divided into a number of wing elements by slots extending substantially perpendicularly to the crossing line of the wings. The first and the third wings are arranged in a first plane with the slots in these wings located pairwise in line with each other, and the second and fourth wings are arranged in a second plane and also with their associated slots located pairwise in line. Further, the slots in the first plane are diplaced in parallel in the direction of the crossing line relative to the slots in the second plane, and the portions of the wing elements adjoining the crossing line of the wings are provided with recesses. This arrangement gives good flexibility without undue loss of strength.
摘要翻译：用于核反应堆的柔性控制杆由以十字形构造布置的第一，第二，第三和第四吸收器翼构成。每个机翼通过基本上垂直于机翼的交叉线延伸的槽分成多个机翼元件。第一和第三翼被布置在第一平面中，其中这些翼中的槽彼此成对地定位，并且第二和第四翼被布置在第二平面中，并且其相关联的狭槽成对成对排列。此外，第一平面中的槽相对于第二平面中的槽在交叉线的方向上平行放置，并且与翼的交叉线相邻的翼元件的部分设置有凹部。这种布置具有良好的灵活性，而不会不必要地损失力量。

9. 发明授权

US3576717A Nuclear reactor structure 失效
标题翻译：核反应堆结构
公开(公告)号：US3576717A
公开(公告)日：1971-04-27
申请号：US3576717D
申请日：1968-01-24
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： THORP ARTHUR G
IPC分类号： G21C7/14 , G21C7/11 , G21C7/12 , G21C7/08
CPC分类号： G21C7/11 , G21C7/12 , G21Y2002/103 , G21Y2004/30 , Y02E30/39
摘要： TO BE DRIVEN BY ONE MECHANISM PER ASSEMBLY. THE THIMBLES ARE SEATED AT THEIR LOWER ENDS AND THE INTERIOR THEREOF IS ISOLATED FROM THE INTERNAL PRESSURE OF THE REACTOR VESSEL SO THAT THE CONTROL ELEMENTS OPERATE IN AIR OR OTHER GAS, FOR EXAMPLE HELIUM.

THE FUEL ASSEMBLIES IN A REACTOR ARE FIXED ARRAYS OF FUEL RODS WITHOUT THE USUAL OMISSIONS FOR CONTROL ROD SLOTS. INSTEAD, A NUMBER OF FUEL RODS ARE OMITTED IN THE PATTERN ON A NEARLY UNIFORM GRID THROUGHOUT THE CORE TO PROVIDE SPACES FOR PRESSURE THIMBLES TO HOUSE CONTROL ELEMENTS OF NEUTRON ABSORBING MATERIAL, SUCH AS A CHAIN OR BEAD TYPE. THE CONTROL ELEMENTS ARE DRIVEN IN OR OUT OF THE CORE BY SUCH MEANS AS WIRE ROPE CABLES WHICH ARE GROUPED

10. 发明授权

US3361635A Nuclear reactor control rod winding arrangements 失效
标题翻译：核反应堆控制棒卷绕布置
公开(公告)号：US3361635A
公开(公告)日：1968-01-02
申请号：US45344465
申请日：1965-05-05
申请人： ENGLISH ELECTRIC CO LTD
发明人： EVERETT LONG
IPC分类号： G21C7/11 , G21C7/14 , G21C19/12 , G21C19/16 , G21C19/20 , G21C19/32
CPC分类号： G21C7/11 , G21C7/14 , G21C19/12 , G21C19/16 , G21C19/20 , G21C19/32 , G21Y2002/201 , G21Y2004/30 , Y02E30/39

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