专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4642216A Control rod cluster arrangement 失效
标题翻译：控制杆组排列
公开(公告)号：US4642216A
公开(公告)日：1987-02-10
申请号：US588596
申请日：1984-03-12
申请人： William L. Orr , Pratap K. Doshi , Claude M. Mildrum , Thomas R. Freeman
发明人： William L. Orr , Pratap K. Doshi , Claude M. Mildrum , Thomas R. Freeman
IPC分类号： G21C7/10 , G21C7/117 , G21C7/24
CPC分类号： G21C7/117 , G21Y2002/10 , G21Y2002/201 , G21Y2004/30 , G21Y2004/40 , Y02E30/39
摘要： A control rod assembly arrangement is disclosed for a light water nuclear reactor. Absorber rods are combined with stainless steel rods to achieve a more homogeneous poison distribution effect which reduces power depression within associated fuel assemblies and thereby flattens the overall power distribution within the core. In addition to improved load follow performance, safety analysis margins are improved due to the reduction in control rod reactivity worth.
摘要翻译：公开了一种用于轻水核反应堆的控制杆组件装置。吸收杆与不锈钢棒组合以实现更均匀的毒物分布效应，其减少相关燃料组件内的功率下降，从而使芯体内的整体功率分布变平坦。除了提高负载跟随性能外，由于控制棒反应性的降低，安全分析的利润也得到了改善。

2. 外观设计

USD314930S Badge shield 失效
公开(公告)号：USD314930S
公开(公告)日：1991-02-26
申请号：US285955
申请日：1988-12-19
申请人： Thomas R. Freeman
设计人： Thomas R. Freeman

3. 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。

4. 外观设计

USD305378S Shoe heel and counter protector 失效
公开(公告)号：USD305378S
公开(公告)日：1990-01-09
申请号：US140435
申请日：1988-01-04
申请人： Jill L. Kemna , Thomas R. Freeman
设计人： Jill L. Kemna , Thomas R. Freeman

5. 外观设计

USD305276S Combined bow and shoe heel and counter protector 失效
公开(公告)号：USD305276S
公开(公告)日：1990-01-02
申请号：US75324
申请日：1987-07-20
申请人： Jill L. Kemna , Thomas R. Freeman
设计人： Jill L. Kemna , Thomas R. Freeman

6. 发明授权

US4751043A Radial neutron reflector 失效
标题翻译：径向中子反射器
公开(公告)号：US4751043A
公开(公告)日：1988-06-14
申请号：US912664
申请日：1986-09-29
申请人： Thomas R. Freeman , Brian H. Alsop , Donald G. Sherwood
发明人： Thomas R. Freeman , Brian H. Alsop , Donald G. Sherwood
IPC分类号： G21C11/06
CPC分类号： G21C11/06 , Y02E30/40
摘要： A radial neutron reflector is disclosed for a light water nuclear reactor. The irregular space between the core periphery and the core barrel surrounding the core is filled with a structure comprising material other than hydrogen such as zirconia or stainless steel so as to displace the reactor water coolant in this region. The structure is provided with appropriately sized flow holes to pass reactor coolant therethrough and to balance the pressure within the structure to substantially coincide with the axial pressure profile at the core periphery.
摘要翻译：公开了一种用于轻水核反应堆的径向中子反射器。围绕芯部的芯部周边和芯部筒体之间的不规则空间填充有包括除氢之外的材料（例如氧化锆或不锈钢）的结构，以便使该区域中的反应堆水冷却剂移位。该结构设置有适当尺寸的流动孔，以使反应堆冷却剂通过其中并且平衡结构内的压力以与芯部周边处的轴向压力分布基本一致。

7. 发明授权

US4655995A Reversible BWR fuel assembly and method of using same 失效
标题翻译：可逆式BWR燃油组件及其使用方法
公开(公告)号：US4655995A
公开(公告)日：1987-04-07
申请号：US609252
申请日：1984-05-11
申请人： Thomas R. Freeman , John F. Wilson , Ronald P. Knott
发明人： Thomas R. Freeman , John F. Wilson , Ronald P. Knott
IPC分类号： G21C3/32 , G21C3/33 , G21C19/00
CPC分类号： G21C3/3315 , G21C3/32 , G21C3/3305 , Y02E30/40
摘要： A fuel assembly, particularly advantageous for use with a BWR, wherein the fuel bundle is adapted to be inserted into an envelope formed from a flow channel and a lower nozzle assembly. The fuel bundle is essentially axially symmetrical having identical top and bottom tie plates. Within the fuel bundle, alternate fission gas plenums are disposed at the top and bottom of the bundle respectively.During the refueling operation, the fuel bundle is removed from the reactor core, axially inverted and reinserted into the core for continued burn up. The invention takes advantage of the reactivity increase possible in a BWR when a partially burned fuel bundle is inverted.
摘要翻译：一种燃料组件，特别有利于与BWR一起使用，其中燃料束适于插入由流动通道和下喷嘴组件形成的外壳中。燃料束基本上是轴对称的，具有相同的顶部和底部连接板。在燃料束内，交替的裂变气体增压室分别设置在束的顶部和底部。在加油操作期间，将燃料束从反应堆芯中取出，轴向倒置并重新插入到芯中以继续燃烧。当部分燃烧的燃料束反转时，本发明利用在BWR中可能的反应性增加。

8. 发明授权

US4637915A Nuclear reactor fuel assembly and method of forming same 失效
标题翻译：核反应堆燃料组件及其形成方法
公开(公告)号：US4637915A
公开(公告)日：1987-01-20
申请号：US609250
申请日：1984-05-11
申请人： Thomas M. Camden, Jr. , Thomas R. Freeman
发明人： Thomas M. Camden, Jr. , Thomas R. Freeman
IPC分类号： G21C3/328 , G21C3/32
CPC分类号： G21C3/3213 , G21C3/32 , Y02E30/40
摘要： A nuclear fuel assembly, particularly advantageous for use in a pressurized water reactor, wherein each alternate fuel rod in the assembly is positioned with its fission gas plenum zone at the top of the assembly and the intervening alternate fuel rods are positioned with their fission gas plenum zones at the bottom of the assembly. All of the fuel rods are preferably axially coextensive. An axial blanket region may be formed by providing the fuel zone of each fuel rod with a small zone of natural or depleted uranium at a part of the fuel zone furthest from the fission gas plenum zone. A method of effectively lengthening the active length of a nuclear fuel assembly is also described.
摘要翻译：一种核燃料组件，特别适用于加压水反应器，其中组件中的每个替代燃料棒的位置处于其裂变气体充气区位于组件的顶部，并且介入的替代燃料棒与其裂变气体压力室组件底部的区域。所有燃料棒优选是轴向共延伸的。可以通过在距离裂变气体充气区最远的燃料区的一部分处提供每个燃料棒的燃料区域形成天然或贫化铀的小区域来形成轴向覆盖区域。还描述了有效地延长核燃料组件的有效长度的方法。

9. 外观设计

USD311448S Sock 失效
公开(公告)号：USD311448S
公开(公告)日：1990-10-23
申请号：US50136
申请日：1987-05-17
申请人： Jill L. Kemna , Thomas R. Freeman
设计人： Jill L. Kemna , Thomas R. Freeman

10. 外观设计

USD307071S Shoe heel and counter protector 失效
公开(公告)号：USD307071S
公开(公告)日：1990-04-10
申请号：US49414
申请日：1987-05-14
申请人： Jill L. Kemna , Thomas R. Freeman
设计人： Jill L. Kemna , Thomas R. Freeman

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式