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公开(公告)号：USD533067S1
公开(公告)日：2006-12-05
申请号：US29234036
申请日：2005-07-12
申请人： David A. Snyder
设计人： David A. Snyder
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42.发明授权System and method for evaporating moisture from a gap defined between a repair sleeve and a surrounding heat transfer tube in a nuclear steam generator 失效用于从在核蒸汽发生器中的维修套筒和周围的传热管之间限定的间隙中蒸发水分的系统和方法
公开(公告)号：US5490188A
公开(公告)日：1996-02-06
申请号：US366644
申请日：1994-12-30
申请人： David A. Snyder
发明人： David A. Snyder
CPC分类号： F28F11/02 , F22B37/003 , Y10T29/49352
摘要： System and method for evaporating moisture from a gap defined between a heat transfer tube surrounding a repair sleeve in a nuclear steam generator. The nuclear steam generator has a heat transfer tube surrounding a repair sleeve that has been hydraulically expanded into engagement with the tube. The tube and the sleeve define a gap therebetween having moisture residing therein. The system includes an air compressor in communication with the gap for supplying air to the gap and a dryer in communication with the air compressor for drying the gas supplied to the gap. A heater in communication with the air compressor may also be provided for heating the air supplied to the gap, so that the moisture residing in the gap evaporates into the heated air. A vacuum pump in communication with the gap may be provided for decreasing the pressure of the heated air in the gap, so that substantially all the moisture evaporates from the gap and into the heated air.
摘要翻译： 用于从在核蒸汽发生器中的维修套筒周围的传热管之间限定的间隙中蒸发水分的系统和方法。 核蒸汽发生器具有围绕修复套筒的传热管，其被液压地膨胀成与管接合。 管和套管之间限定了其间存在水分的间隙。 该系统包括与用于向间隙供应空气的间隙连通的空气压缩机和与空气压缩机连通以用于干燥供应到间隙的气体的干燥器。 还可以提供与空气压缩机连通的加热器，用于加热供应到间隙的空气，使得驻留在间隙中的水分蒸发成加热的空气。 可以提供与间隙连通的真空泵，用于减小间隙中加热的空气的压力，使得基本上所有的水分从间隙中蒸发并进入加热空气。
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公开(公告)号：US5479699A
公开(公告)日：1996-01-02
申请号：US192536
申请日：1994-02-07
申请人： David A. Snyder
发明人： David A. Snyder
CPC分类号： B21D39/20 , B21D39/06 , B21D39/203 , Y10T29/49375 , Y10T29/531 , Y10T29/53109 , Y10T29/53122 , Y10T29/53657
摘要： Apparatus for expanding tubular members, such as U-shaped heat transfer tubes having ends thereof located in the confined space adjacent the curved sides of the bowl-shaped lower plenum of a typical nuclear steam generator. The apparatus includes an elongate mandrel having a flow channel therethrough in communication with a resilient tubular bladder surrounding the mandrel. The bladder is flexible about its longitudinal axis due to the ribbed construction of the wall thereof. The mandrel includes a plurality of segments, adjacent ones of the segments interconnected by a ball-and-socket joint therebetween, so that the segments swivel about respective ones of the ball-and-socket joints. In this manner, the mandrel flexes as it is inserted into the tube end located in the confined space defined by the sides of the bowl-shaped lower plenum of the steam generator. The mandrel also flexes as it traverses the upper U-bend portion of the tube. Thus, the mandrel and the expandable bladder connected thereto are flexible rather than rigid in order to be easily inserted into the tube ends located adjacent the curved sides of the bowl-shaped plenum and in order to easily traverse the upper U-bend portion of the tube. A pressurizer supplies pressurized fluid to the channel to controllably expand the bladder into intimate engagement with the tube in order to radially expand the tube. The mandrel is also capable of similarly expanding repair sleeves disposed concentrically in the tube.
摘要翻译： 用于膨胀管状构件的装置，例如U形传热管，其具有位于与典型核蒸汽发生器的碗状下部通风室的弯曲侧相邻的限制空间中的端部。 该设备包括细长心轴，其具有与围绕心轴的弹性管状气囊连通的流动通道。 由于其壁的肋状结构，囊状物的纵向轴线是柔性的。 心轴包括多个段，相邻的段通过其间的球窝接头互连，使得段围绕球窝接头的相应的一个旋转。 以这种方式，当心轴插入位于由蒸汽发生器的碗状下部增压室的侧面限定的限制空间内的管端时，心轴弯曲。 心轴在穿过管的上U形弯曲部分时也弯曲。 因此，连接到其上的心轴和可膨胀气囊是柔性的而不是刚性的，以便容易地插入位于邻近碗形气室的弯曲侧面的管端中，并且为了容易地横过碗状容器的上U形弯曲部分 管。 加压器将加压流体供应到通道以可控地膨胀囊以与管子紧密接合以便径向扩张管。 心轴还能够类似地扩大同心放置在管中的修复套筒。
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44.发明授权
公开(公告)号：US5456290A
公开(公告)日：1995-10-10
申请号：US772622
申请日：1991-10-04
IPC分类号： G21C17/003 , F16L55/13 , F28F11/02 , G21C13/067 , G21D1/00 , F16L55/12
CPC分类号： F28F11/02 , F16L55/13 , G21C13/067 , Y02E30/40
摘要： Tube plug and method for plugging a heat exchanger tube having an inner wall, which tube plug has a reduced susceptibility to stress corrosion cracking. The tube plug includes a shell having a closed end, an open end and an outer wall, the shell defining a chamber therein in communication with the open end of the shell. Disposed in the chamber is an expander member for expanding the outer wall of the shell into sealing engagement with the inner wall of the tube. A sealing member engages the expander member and is disposed across the open end of the shell for sealing the chamber defined by the shell so that fluid can not enter the chamber to corrosively attack the shell.
摘要翻译： 用于堵塞具有内壁的热交换器管的管塞和方法，该管塞对应力腐蚀开裂的敏感性降低。 管塞包括具有闭合端，开口端和外壁的壳体，壳体限定与壳体的开口端连通的室。 设置在腔室中的膨胀器构件用于使壳体的外壁膨胀成与管的内壁密封接合。 密封构件接合膨胀器构件并且横跨壳体的开口端布置，用于密封由壳限定的室，使得流体不能进入室以腐蚀地侵入壳体。
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公开(公告)号：US5194214A
公开(公告)日：1993-03-16
申请号：US699406
申请日：1991-05-13
IPC分类号： F16L55/132 , F28F11/02
CPC分类号： F28F11/02 , F16L55/132
摘要： A plugging device, such as a tube plug, and method for plugging a tubular member, such as a nuclear steam generator tube, comprises a locking cup for securing together the plurality of members comprising the tube plug. The plugging device may comprise a first member, such as a shell of a tube plug, a second member, such as bolt means of a tube plug and an annular locking cup disposed in a bore of the first member and having outside diameter threads. The outside diameter threads of the locking cup have a deformed portion with a wave-like pattern for providing resistance during threading and unthreading of the locking cup into and out of the first member. At least one of the second member and the locking cup has at least one recess for receiving a deformable portion of the other of the second member and the locking cup for securing the first member, the second member, and the locking cup together. The metal-to-metal abutment of an outside diameter surface of the locking cup and a plug face of the shell and the metal-to-metal abutment of a taper of the bolt means and a taper of the locking cup may seal a chamber within the shell to prevent fluid flow through the tube plug.
摘要翻译： 诸如管塞的堵塞装置和用于堵塞诸如核蒸汽发生器管的管状构件的方法包括用于将包括管塞的多个构件固定在一起的锁定杯。 堵塞装置可以包括第一构件，例如管塞的壳体，第二构件，例如管塞的螺栓装置和设置在第一构件的孔中并具有外径螺纹的环形锁杯。 锁定杯的外径螺纹具有波形图案的变形部分，用于在锁定杯进入和离开第一构件的螺纹和脱螺纹期间提供阻力。 第二构件和锁定杯中的至少一个具有用于接收第二构件中的另一个的可变形部分和用于将第一构件，第二构件和锁定杯固定在一起的锁定杯的至少一个凹部。 锁定杯的外径表面和壳体的塞面以及螺栓装置的锥形的金属对金属邻接件和锁定杯的锥形的金属对金属邻接件可以密封锁定杯内的腔室 外壳防止流体流过管塞。
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公开(公告)号：US5061176A
公开(公告)日：1991-10-29
申请号：US599770
申请日：1990-10-18
IPC分类号： F22B37/00
CPC分类号： F22B37/003
摘要： An apparatus and process for positioning and for simultaneously oscillating a plurality of heater probes within a plurality of heat exchanger tubes mounted in a tubesheet of a nuclear steam generator is disclosed herein. The apparatus generally comprises a frame, a plurality of probe drivers mounted onto the frame, wherein each driver includes a pneumatically operated, bladder-type gripper for selectively gripping and ungripping the push-cable of one of the heater probes, as well as an oscillating mechanism powered by a variable voltage d.c. motor. A controller connected between the d.c. motor and a power source separately controls the frequency and the amplitude of the cycle that the oscillating mechanism moves the gripper in, and further controls the alignment between the midpoint of the oscillatory cycle and a selected point along the longitudinal axis of the tube. The apparatus is movable to a selected position on the tubesheet by means of a robotic arm, and includes a coupling for remotely attaching and detaching the arm from the frame of the apparatus. The frame of the apparatus includes a pair of opposing cam-locks for detachably securing the apparatus at a selected position on the tubesheet, thereby advantageously freeing the robotic arm that delivered the apparatus. Finally, the frame is contoured to the shape of the inner walls of the steam generator so that the apparatus can service heat exchanger tubes located on the periphery of the tubesheet.
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47.发明授权Apparatus and process for simultaneously positioning and oscillating a plurality of probes in the heat exchanger tubes of a nuclear steam generator 失效用于在核蒸汽发生器的热交换器管中同时定位和振荡多个探针的装置和方法
公开(公告)号：US5000681A
公开(公告)日：1991-03-19
申请号：US213923
申请日：1988-06-30
CPC分类号： F22B37/003
摘要： An apparatus and process for positioning and for simultaneously oscillating a plurality of heater probes within a plurality of heat exchanger tubes mounted in a tubesheet of a nuclear steam generator is disclosed herein. The apparatus generally comprises a frame, a plurality of probe drivers mounted onto the frame, wherein each driver includes a pneumatically operated, bladder-type gripper for selectively gripping and ungripping the push-cable of one of the heater probes, as well as an oscillating mechanism powered by a variable voltage d.c. motor. A controller connected between the d.c. motor and a power source separately controls the frequency and the amplitude of the cycle that the oscillating mechanism moves the gripper in, and further controls the alignment between the midpoint of the oscillatory cycle and a selected point along the longitudinal axis of the tube. The apparatus is movable to a selected position on the tubesheet by means of a robotic arm, and includes a coupling for remotely attaching and detaching the arm from the frame of the apparatus. The frame of the apparatus includes a pair of opposing cam-locks for detachably securing the apparatus at a selected position on the tubesheet, thereby advantageously freeing the robotic arm that delivered the apparatus. Finally, the frame is contoured to the shape of the inner walls of the steam generator so that the apparatus can service heat exchanger tubes located on the periphery of the tubesheet.
摘要翻译： 本文公开了一种用于在安装在核蒸汽发生器的管板内的多个热交换器管内定位和同时振荡多个加热器探针的装置和方法。 该装置通常包括框架，安装在框架上的多个探针驱动器，其中每个驱动器包括气动操作的气囊型夹具，用于选择性地夹紧和取下一个加热器探针的推动电缆，以及振荡 由可变电压dc供电的机构 发动机。 一个控制器连接在直流 电动机和电源分别控制振荡机构使夹持器移动的周期的频率和振幅，并且进一步控制振荡周期的中点与沿着管的纵向轴线的选定点之间的对准。 该装置可通过机器人手臂移动到管板上的选定位置，并且包括用于远离装置和从装置的框架拆卸臂的联接器。 设备的框架包括一对相对的凸轮锁，用于将设备可拆卸地固定在管板上的选定位置，从而有利地释放输送设备的机器人手臂。 最后，框架被轮廓化为蒸汽发生器的内壁的形状，使得该装置可以维护位于管板周边的热交换器管。
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公开(公告)号：US4854798A
公开(公告)日：1989-08-08
申请号：US55568
申请日：1987-05-29
申请人： David A. Snyder , David M. Glosecki
发明人： David A. Snyder , David M. Glosecki
CPC分类号： F16B31/043 , F16B43/02 , F16B1/005 , Y10S411/916 , Y10T29/49874
摘要： The in-place tensioning washer apparatus mounts about a stud to be tensioned. The apparatus has an upper portion, a lower portion, and an expanding torus positioned therebetween. With the stud threaded into the workpiece, the washer is slid onto the stud and a nut is threaded hand tight onto the stud. Pressurization of the torus then forces the upper portion of the apparatus away from the lower portion, putting the stud in tension. Shims are inserted into the gap between the upper and lower portions caused by pressurization of the torus. The torus is then depressurized and the shims maintain the gap between the upper and lower portions, thereby maintaining the stud in tension. To relax the stress in the stud, the torus is repressurized to force the upper and lower portions of the washer apart, freeing the shims for removal. Depressurization of the torus then relaxes the stress in the stud.
摘要翻译： 就地张紧垫圈装置安装在要张紧的螺柱上。 该装置具有位于它们之间的上部，下部和扩张的环面。 当螺柱拧入工件时，垫圈滑动到螺柱上，并将螺母用手拧紧到螺柱上。 然后加压环面然后迫使设备的上部远离下部，使螺柱处于张紧状态。 垫片被插入通过环形体的加压引起的上部和下部之间的间隙中。 然后将环面减压，并且垫片保持上部和下部之间的间隙，从而保持螺柱处于张力。 为了松弛螺柱中的应力，重新加压环面以迫使垫圈的上部和下部分开，释放垫片以便拆卸。 圆环的减压然后放松螺柱中的应力。
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公开(公告)号：US4740992A
公开(公告)日：1988-04-26
申请号：US857144
申请日：1986-04-29
CPC分类号： H04L5/1492
摘要： A transceiver is adapted for communication with another transceiver over a common channel by a technique that allows both transceivers to be identical in manufacture and use. The technique avoids designating one transceiver the "master" and the other the "slave", by relying on random time differences between transmissions during a start-up period that initially establishes communications. The transmissions are typically in multi-bit packets. An example using an optical transceiver having a light emitting diode used for both optical transmission and optical detection is given, wherein the channel is an optical fiber.
摘要翻译： 收发器适于通过允许两个收发器在制造和使用中相同的技术在公共信道上与另一收发器进行通信。 该技术通过依赖于最初建立通信的启动期间的传输之间的随机时间差异来避免将一个收发机指定为“主”而另一个“从”。 传输通常是多位数据包。 给出了使用具有用于光传输和光学检测的发光二极管的光收发器的示例，其中该信道是光纤。
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公开(公告)号：US4639994A
公开(公告)日：1987-02-03
申请号：US538309
申请日：1983-10-03
IPC分类号： F28F11/06 , B21D39/20 , B23P6/00 , B23P19/02 , F22B37/00 , F22B37/02 , F28F11/00 , B23P7/00 , B23P15/26
CPC分类号： B23P19/022 , B23P6/00 , F22B37/003 , Y10T29/49352 , Y10T29/49718 , Y10T29/531 , Y10T29/53122
摘要： Apparatus for processing the damaged tubes of a steam generator either to prepare the tubes for insertion of a sleeve, or to insert a sleeve or to treat the sleeve after it is inserted. This apparatus includes a drilling tool for drilling out plugs, a sleeving tool for inserting sleeves in the tubes, a high-roller tool for rolling the sleeves at their upper ends where they have been expanded, and a low-roller tool for rolling the sleeves at their lower ends in the tube sheet. The sleeves are inserted in the tubes and are rolled by rolls driven by a hydraulic motor. For drilling, for sleeve insertion and for high and low rolling, the motor is controlled by a servo control valve.
摘要翻译： 用于处理蒸汽发生器的损坏的管的装置，以制备用于插入套筒的管，或者插入套筒或在套筒插入之后对套筒进行处理。 该装置包括用于钻出插头的钻孔工具，用于将套管插入管中的套筒工具，用于在其已经膨胀的上端滚动套筒的高辊工具，以及用于滚动套筒的低辊工具 在管板的下端。 套管插入管中，并由液压马达驱动的辊子滚动。 对于钻孔，套筒插入和高低滚动，电机由伺服控制阀控制。
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