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公开(公告)号：US5375458A
公开(公告)日：1994-12-27
申请号：US135206
申请日：1993-10-12
申请人： Dale M. Oliver , Robert S. Tsukida , Frank Ortega , Herbert B. Dela Rosa , Douglas K. Ethridge , Harry I. Russell , Bettadapur N. Sridhar
发明人： Dale M. Oliver , Robert S. Tsukida , Frank Ortega , Herbert B. Dela Rosa , Douglas K. Ethridge , Harry I. Russell , Bettadapur N. Sridhar
CPC分类号： G01M3/2853
摘要： A multi-port tool which tests for leaks in the seals of a control rod drive that has been removed from its housing. The fixture is attached to the flange of the control rod drive using quick-release clamps. Two ports of the fixture are respectively coupled to the insert and withdraw ports of the control rod drive. A source of demineralized water at a constant pressure is applied to an inlet port of the leak test fixture. The pressurized water is applied to the control rod drive while the index tube is restrained by a restraining rig. A number of valves are selectively opened or closed to provide a flow path for the pressurized water to either the insert port or the withdraw port. The leakage rate at each of a number of leakage points is determined when the pressurized water is applied at the insert port only and again when the pressurized water is applied at the withdraw port only.
摘要翻译： 一种多端口工具，用于测试已从其外壳中移除的控制棒驱动器的密封件中的泄漏。 夹具使用快速释放夹固定在控制杆驱动器的法兰上。 夹具的两个端口分别连接到控制杆驱动器的插入和退出端口。 将恒定压力的软化水源送入泄漏测试夹具的入口。 加压水被施加到控制棒驱动器上，而引导管被约束装置约束。 选择性地打开或关闭多个阀以提供用于加压水到插入口或抽出口的流动路径。 当加压水仅在插入口处施加时，并且仅当加压水仅在抽出口处施加时，确定多个泄漏点中的每一个处的泄漏率。
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公开(公告)号：US5400499A
公开(公告)日：1995-03-28
申请号：US201492
申请日：1994-02-24
CPC分类号： B25B27/06 , G21C19/00 , G21C7/14 , G21Y2002/302 , G21Y2002/303 , G21Y2002/40 , G21Y2004/501 , Y02E30/39 , Y10T29/531 , Y10T29/5393
摘要： A tool for removal of the internal bushings from a piston coupling of a CRD. The tool incorporates a spring-loaded and hardened collet supported on one end of a ram. The collet has a pair of arms with shoulders or projections which latch inside the internal bushing ring to be removed. The tool is inserted into the piston coupling from either end, depending on which internal bushing is to be removed. The tool is inserted until the latching shoulders or projections snap behind the radially inwardly projecting internal bushing, with the contact surfaces of the shoulders or projections in contact with a radial end surface of the bushing. The bushing can then be dislodged, from the inside out, by impacting the other end of the ram with a hammer.
摘要翻译： 用于从CRD的活塞联接器移除内部衬套的工具。 该工具包括一个支撑在柱塞一端的弹簧加载和硬化夹头。 夹头具有一对具有肩部或突起的臂，该肩部或突起锁定在内部衬套环内以被移除。 该工具从任一端插入到活塞联接器中，取决于要拆卸的内部衬套。 插入工具直到锁定肩部或突出部卡在径向向内突出的内部衬套后面，肩部或突起的接触表面与衬套的径向端面接触。 然后可以通过用锤子冲击冲头的另一端，从内向外移动衬套。
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公开(公告)号：US5347554A
公开(公告)日：1994-09-13
申请号：US135872
申请日：1993-10-12
CPC分类号： G21C19/00 , G21C19/207 , G21Y2002/301 , G21Y2002/40 , G21Y2004/50
摘要： An improved tool for removing a highly contaminated outer filter from a control rod drive during a maintenance operation. The tool slides onto the control rod drive and surrounds the outer filter with a shield. The shield has a window for removing the screws used to mount the outer filter on the control rod drive. The tool has a support for the spud on the inside thereof. A U-shaped handle is slidably inserted into guideways so that it interlocks with circumferential slots in the shield. The arms of the inserted U-handle latch underneath the ring flange of the outer filter, whereby the outer filter is captured by the tool. The filter-mounting screws are then removed by unscrewing through the aligned window in the shield. Thereafter, the outer filter is removed from the CRD when the outer filter removal tool is lifted.
摘要翻译： 一种改进的工具，用于在维护操作期间从控制杆驱动器中去除高度污染的外部过滤器。 该工具滑动到控制杆驱动器上，并用屏蔽件围绕外部过滤器。 屏蔽罩有一个窗口用于拆卸用于将外部过滤器安装在控制杆驱动器上的螺钉。 该工具在其内部具有支撑件。 U形手柄可滑动地插入导轨中，使其与屏蔽件中的周向狭槽互锁。 插入的U形手柄的臂在外部过滤器的环形凸缘下方锁定，由此外部过滤器被工具捕获。 然后通过拧松屏蔽中对齐的窗口拧下过滤器安装螺钉。 此后，当外部过滤器去除工具被提起时，外部过滤器从CRD中移除。
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公开(公告)号：US5379330A
公开(公告)日：1995-01-03
申请号：US135779
申请日：1993-10-12
CPC分类号： G21C19/26 , G21C19/207 , B01D2201/24 , B01D2201/4084 , G21Y2002/402 , G21Y2004/501
摘要： An improved tool for removing the highly contaminated inner filter from a control rod drive during a maintenance operation. The tool may also be used to install the inner filter by pushing the inner filter on and locking the spring clip onto flats of the center lug of the control rod drive stop piston. The tool has a collet with flexible fingers which are inserted inside the inner filter while flexed radially inward. After the collet is inserted, a retractable cam with a conical bearing surface is retracted to a position whereat it urges the collet fingers radially outward to clamp the collet onto the inner filter. The locked filter must be rotated before removal. With the inner filter coupled to the collet, the tool is then pulled out to remove the inner filter from the control rod drive.
摘要翻译： 一种改进的工具，用于在维护操作期间从控制杆驱动器中去除高度污染的内部过滤器。 该工具还可以用于通过推动内部过滤器并将弹簧夹锁定到控制棒驱动停止活塞的中心凸耳的平面上来安装内部过滤器。 该工具具有柔性指状物的夹头，其在径向向内弯曲的同时插入内部过滤器内部。 在插入夹头之后，具有锥形支承表面的可伸缩凸轮缩回到其中径向向外推动夹头的位置，以将夹头夹紧到内部过滤器上。 锁定的过滤器必须在拆卸前旋转。 将内部过滤器联接到夹头上，然后将工具拉出以从控制杆驱动器中移除内部过滤器。
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公开(公告)号：US5524030A
公开(公告)日：1996-06-04
申请号：US199405
申请日：1994-02-22
申请人： Thomas W. White , Balasubramanian S. Kowdley , Thomas A. Lewis , Christopher J. Miller , Robert S. Tsukida , Andrew S. Wong , Thomas R. Eckmann , Edward W. Saxon , Frank Ortega
发明人： Thomas W. White , Balasubramanian S. Kowdley , Thomas A. Lewis , Christopher J. Miller , Robert S. Tsukida , Andrew S. Wong , Thomas R. Eckmann , Edward W. Saxon , Frank Ortega
CPC分类号： G21C7/16 , G21Y2002/40 , G21Y2002/50 , Y02E30/39
摘要： An uncoupling tool has a two-module design: one module being a driver assembly for developing the uncoupling movement and the other module being a probe assembly for verifying the uncoupled condition. The probe assembly attaches to the threaded end of the piston tube with its probe extending inside the piston tube. The driver assembly attaches to the CRD ring flange. The probe assembly detects the ring magnet in the drive piston using analog position sensors which operate on the principle of the Hall effect and solid state circuitry. A top sensor provides a signal indicating that the control rod is in its "full out" position; a bottom sensor provides a signal indicating that the control rod is uncoupled; and an intermediate sensor provides a signal indicating that the control rod is in a transition position between the "full out" and uncoupled positions. The probe incorporates spacers which focus the magnetic flux onto the sensors. To uncouple the control rod, the probe assembly is lifted using a separate driver assembly.
摘要翻译： 解耦工具具有双模块设计：一个模块是用于开发非耦合运动的驱动器组件，而另一模块是用于验证非耦合状态的探针组件。 探针组件连接到活塞管的螺纹端，其探针在活塞管内延伸。 驱动器组件连接到CRD环形法兰。 探头组件使用以霍尔效应和固态电路为原理的模拟位置传感器来检测驱动活塞中的环形磁体。 顶部传感器提供指示控制杆处于其“完全”位置的信号; 底部传感器提供指示控制杆脱离的信号; 并且中间传感器提供指示控制杆处于“完全”和非耦合位置之间的过渡位置的信号。 探头包含将磁通量聚焦到传感器上的间隔物。 为了使控制杆脱开，探针组件使用单独的驱动器组件提升。
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公开(公告)号：US5465497A
公开(公告)日：1995-11-14
申请号：US199408
申请日：1994-02-22
申请人： Balasubramanian S. Kowdley , Thomas A. Lewis , Robert S. Tsukida , Edward W. Saxon , Frank Ortega , Paul Debenedetto
发明人： Balasubramanian S. Kowdley , Thomas A. Lewis , Robert S. Tsukida , Edward W. Saxon , Frank Ortega , Paul Debenedetto
CPC分类号： G21C17/12 , G21Y2002/207 , G21Y2002/40 , G21Y2004/501
摘要： A method and a gage for testing uncoupling tools to ensure proper operation prior to use. The uncoupling tool gage simulates the actual conditions under which the uncoupling tool is expected to perform. The gage has a cylindrical guide for slidably receiving a magnet housing. The guide is supported such that it is concentric with respect to the probe of an uncoupling tool to be checked. The magnet housing is placed inside the cylindrical guide and then moved toward the bottom thereof. When the magnet moves into proximity with a switch in the uncoupling tool probe, an indicator lamp in the uncoupling tool illuminates. If the face of the magnet housing is within a range band on the outside of the guide when the indicator is illuminated, then the uncoupling tool is operating properly.
摘要翻译： 用于测试分离工具的方法和量具，以确保在使用前正确操作。 解耦工具计数器模拟解耦工具预期执行的实际条件。 量具具有用于可滑动地接收磁体壳体的圆柱形引导件。 引导件被支撑成使得其相对于要检查的解耦工具的探头是同心的。 磁体外壳放置在圆柱形引导件内，然后向其底部移动。 当磁头移动到非耦合工具探针中的开关附近时，解耦工具中的指示灯亮起。 如果当指示灯点亮时，磁体外壳的表面在引导件外侧的范围内，则解耦工具正常工作。
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公开(公告)号：US4939940A
公开(公告)日：1990-07-10
申请号：US296993
申请日：1989-01-17
申请人： Robert S. Tsukida
发明人： Robert S. Tsukida
CPC分类号： G01N35/1079 , G01N1/10 , G01N2001/1037 , G01N2001/2085 , G01N2033/0093
摘要： In a post-accident sample needle system, at the sample station, an improved seal for a PASS liquid sample needle is disclosed. In such systems, a bottle with a septum is impaled on paired needles. The first needle provides venting, and the second needle provides for the placement of potentially radioactive samples in the bottle through the septum. A needle of the hypodermic type having an angled point is provided with a flared end remote from the point. A rubber O-ring fits over the needle adjacent the flare having an inner circumferential diameter that permits passage along the length of the needle and trapping at the end of the needle adjacent the flare. The O-ring is captured at the flared end of the needle by a conventional compression nut. The nut, when tightened, compresses the O-ring to circumferentially expand beyond the edges of the flare to form a seal between the needle and O-ring and to form a secondary seal between the bore and O-ring. In the expansion of the O-ring, the needle is self-centered and braced for the dispensing of a sample.
摘要翻译： 在事后采样针系统中，在采样台处，公开了用于PASS液体样品针的改进的密封。 在这样的系统中，具有隔膜的瓶子被钉在成对的针上。 第一针提供通气，第二针提供通过隔膜将潜在的放射性样品放置在瓶中。 具有角度点的皮下注射型针头设置有远离该点的扩张端。 橡胶O形环安装在邻近火炬的针上，具有允许沿着针的长度通过的内圆周直径，并且在邻近火炬的针的末端捕获。 O形圈通过常规压缩螺母在针的扩口端处被捕获。 当紧固时，螺母压缩O形环以周向地膨胀超过火炬的边缘，以在针和O形环之间形成密封，并在孔和O形环之间形成二次密封。 在O形圈的膨胀中，针是自动居中的并且用于分配样品。
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公开(公告)号：US5394446A
公开(公告)日：1995-02-28
申请号：US135811
申请日：1993-10-12
CPC分类号： G21C7/16 , G21Y2002/204 , G21Y2004/304 , G21Y2004/501 , Y02E30/39
摘要： A gauge for ensuring that the uncoupling rod of a control rod drive is properly inserted in the center hole of the spud and not in one of the outer lobes, i.e., spud flow holes, which communicate with the center hole. The uncoupling rod is inserted in the spud. Then the gauge is placed on top of the spud with a centering ring protruding into the spud. The uncoupling rod is correctly installed if it is free to slide inside the gauge and the spud. The gauge is also provided with a ring to protect the spud during transfer of the control rod drive.
摘要翻译： 用于确保控制棒驱动器的非耦合杆适当地插入到轴的中心孔中而不是在与中心孔连通的外凸角中的一个，即，流出孔中。 分离杆插入到支脚中。 然后将量规放置在立柱的顶部，并具有突出到支脚中的定心环。 如果在量规和标准杆内自由滑动，则解耦杆正确安装。 仪表还设有一个环，用于在控制杆传动过程中保护喷头。
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