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公开(公告)号：US4980120A
公开(公告)日：1990-12-25
申请号：US450116
申请日：1989-12-12
CPC分类号： F28G1/166 , F22B37/483
摘要： An articulated lance for cleaning sludge located between steam generator tubes is disclosed. A plurality of radius blocks are attached to the end of manipulator member and are actuatable by a cam assembly to form an arc permitting the lance to be received between adjacent tubes within a tube bundle. A plurality of fluid passageways interconnect a fluid inlet on the manipulator member with one or more outlet orifices adjacent the end of the lance. The outlet orifices are positioned outwardly with respect to the end of the manipulator member so that fluid passing therethrough can be directed to impinge upon sludge surrounding the tubes. A spring backing place biases the radius blocks and the manipulator member back into the same plane upon deactuation of the cam assembly.
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公开(公告)号：US5194217A
公开(公告)日：1993-03-16
申请号：US819249
申请日：1992-01-10
IPC分类号： F22B37/48
CPC分类号： F22B37/483
摘要： An improved articulated sludge lance with a retractable movable extension nozzle for cleaning a steam generator. The extension nozzle includes a flexible conduit adapted to be moved with a wire cable to place the nozzle in close proximity to a support plate for effectively cleaning the broached holes therein. A bumper member fastened to the flexible conduit provides a side-to-side motion from impact with the tubes when the lance is moved therethrough.
摘要翻译： 改进的铰接式污泥喷枪，具有用于清洁蒸汽发生器的伸缩式可移动延伸喷嘴。 延伸喷嘴包括柔性导管，其适于用线缆移动以将喷嘴放置在靠近支撑板的位置，以有效地清洁其中的拉深孔。 固定在柔性导管上的保险杠构件提供了当枪穿过其中时与管冲击的一个侧面运动。
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公开(公告)号：US06772832B2
公开(公告)日：2004-08-10
申请号：US10127912
申请日：2002-04-23
申请人： William G. Schneider
发明人： William G. Schneider
IPC分类号： F28F900
CPC分类号： F28D7/06 , F22B37/206 , F28F9/0132
摘要： A support bar for tubes in a heat exchanger, such as the U-bend tubes in the U-bend region of a recirculating, nuclear steam generator, provides positive restraint in both the in-plane direction of the tube planes and the out-of-plane direction. The bar has pairs of parallel surfaces aligned with first and second axes such that the bar may be positioned with either axis arranged parallel to the tube planes. The bar can be used in place of other types of tube support bars, and can also be used as an auxiliary bar for installation into a fully assembled heat exchanger to provide additional support to supplement other tube support arrangements.
摘要翻译： 用于热交换器中的管的支撑杆（例如在再循环的核蒸汽发生器的U形弯曲区域中的U形弯管）在管平面的面内方向和外侧的平面方向上提供了积极的约束 平面方向。 该杆具有与第一和第二轴对准的成对的平行表面，使得该杆可以以平行于管平面布置的任一轴定位。 该棒可以用于代替其他类型的管支撑杆，并且还可以用作辅助杆，用于安装到完全组装的热交换器中以提供额外的支撑以补充其他管支撑装置。
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公开(公告)号：US5735341A
公开(公告)日：1998-04-07
申请号：US749590
申请日：1996-11-15
CPC分类号： F22B1/025 , B23P6/00 , Y10T29/49352 , Y10T29/49737 , Y10T29/49742
摘要： A one-piece curved floating primary divider plate (40) is described which is suitable for retrofit in an existing steam generator. The one-piece curved floating primary divider plate eliminates most loose parts and reduces leakage of the primary flow resulting in an improvement in the thermal performance of a steam generator. A method of retrofitting a primary divider plate in an existing steam generators is also described to improve the thermal performance of the steam generator.
摘要翻译： 描述了适合于在现有蒸汽发生器中改装的单件式弯曲浮动主分隔板（40）。 单件式弯曲浮动主分隔板消除了大部分松动的部件，并减少了主流的泄漏，从而提高了蒸汽发生器的热性能。 还描述了在现有蒸汽发生器中改装主分隔板的方法，以改善蒸汽发生器的热性能。
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公开(公告)号：US06367430B1
公开(公告)日：2002-04-09
申请号：US09531625
申请日：2000-03-21
申请人： William G. Schneider
发明人： William G. Schneider
IPC分类号： F22B3724
CPC分类号： F28D7/06 , F22B37/205 , F28F9/0132
摘要： A lattice high bar for a nuclear steam generator tube support bar array has scalloped indentations along its length. The scalloped indentations are located at points on the high bar where water tubes will contact the high bar. The indentations extend from one edge of the high bar to about two-thirds of the distance across the bar. When the high bars are used in a lattice bar array, only the unscalloped portion of the high bar contacts an adjacent supported tube, thereby reducing the contact area and the likelihood of corrosion and cracking and also reducing the length over which inspection is impeded. Additionally, the flow path created by opposed but overlapping scallops at the 120° intersections at certain points along the high bars improves the flow sweeping over the surface of the supported tube.
摘要翻译： 核蒸汽发生器管支撑杆阵列的格子棒具有沿其长度的扇形凹口。 扇形凹口位于高条上的点，水管将与高条接触。 凹痕从高条的一个边缘延伸到跨越条的距离的大约三分之二。 当高杆用于格子棒阵列时，只有高条的未切割部分接触相邻的支撑管，从而减少了接触面积和腐蚀和破裂的可能性，并且还减少了阻碍检查的长度。 另外，沿着高条在某些点处的120°交叉处由相对但重叠的扇贝产生的流动路径改善了在支撑管的表面上的流动扫掠。
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公开(公告)号：US5623763A
公开(公告)日：1997-04-29
申请号：US509906
申请日：1995-08-01
CPC分类号： F22B1/025 , B23P6/00 , Y10T29/49352 , Y10T29/49737 , Y10T29/49742
摘要： A one-piece curved floating primary divider plate (40) is described which is suitable for retrofit in an existing steam generator. The one-piece curved floating primary divider plate eliminates most loose parts and reduces leakage of the primary flow resulting in an improvement in the thermal performance of a steam generator. A method of retrofitting a primary divider plate in an existing steam generators is also described to improve the thermal performance of the steam generator.
摘要翻译： 描述了适合于在现有蒸汽发生器中改装的单件式弯曲浮动主分隔板（40）。 单件式弯曲浮动主分隔板消除了大部分松动的部件，并减少了主流的泄漏，从而提高了蒸汽发生器的热性能。 还描述了在现有蒸汽发生器中改装主分隔板的方法，以改善蒸汽发生器的热性能。
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公开(公告)号：US4934633A
公开(公告)日：1990-06-19
申请号：US255135
申请日：1988-10-07
IPC分类号： B61L29/28
CPC分类号： B61L29/28
摘要： Warning lights at a railroad grade crossing are energized at a predetermined flash rate when a train is approaching through the use of an essentially fail-safe solid state crossing controller employing circuitry that is active in creating an off condition of the warning lamps. A controller unit operates a pair of warning lamps alternately in synchronism with a warning rate (flash rate) signal having a predetermined repetition rate, such as 55 pulses per minute. When the crossing is safe, an RC circuit in the lamp driver responds to a 500 Hz safe status signal by providing continuous control excitation to a normally conductive lamp switching circuit to maintain the lamps deenergized. In a failure mode, the normal condition of the switching circuit maintains one lamp of each pair continuously energized. Alternate flashing of a lamp pair is accomplished in synchronism with the warning rate signal by alternating an oscillator at the flash rate between two output frequencies and applying the oscillator output as modulation on the supply current to the lamps. Additional lamp pairs are operated by independent control units all responsive to the alternating oscillator output.
摘要翻译： 当火车通过使用本质上故障安全的固态交叉控制器接近时，在铁路坡口处的警示灯以预定的闪光速率被激励，该电路采用有助于产生警告灯的关闭状态的电路。 控制器单元与具有预定重复频率的警告速率（闪光速率）信号同步地交替地操作一对警告灯，例如每分钟55个脉冲。 当交叉路口安全时，灯驱动器中的RC电路通过向正常导通的灯开关电路提供连续的控制激励来响应500Hz的安全状态信号，以保持灯被断电。 在故障模式中，开关电路的正常状态保持每对的一个灯持续通电。 通过以两个输出频率之间的闪光速率交替振荡器并且将振荡器输出作为对电流的供给电流的调制施加到灯来，通过与警告速率信号同步地实现灯对的交替闪烁。 附加的灯对由独立的控制单元操作，全部响应交替的振荡器输出。
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公开(公告)号：US08695688B2
公开(公告)日：2014-04-15
申请号：US11779653
申请日：2007-07-18
IPC分类号： F28F9/00
CPC分类号： F28D7/06 , F22B37/002 , F22B37/20 , F22B37/206 , F28F9/013 , F28F9/0132
摘要： A self-supporting system for positioning and restraining the U-bend tubes in the U-bend region of a nuclear steam generator includes arrays incorporating unique support bars having nubs projecting in the out-of-plane direction of the tube planes. The system also includes assemblies for spacing the arrays, tie bars to prevent the arrays from splaying and saddle bar assemblies to support the outermost tube layers. The system provides positive restraint to nub engaged tubes in both the in-plane direction of the tube planes and the out-of-plane direction.
摘要翻译： 用于定位和限制核蒸汽发生器的U形弯曲区域中的U形弯管的自支撑系统包括具有独特的支撑杆的阵列，其具有在管平面的平面外方向上突出的凸块。 该系统还包括用于间隔阵列的组合件，连接杆以防止阵列展开并且鞍形杆组件支撑最外面的管层。 该系统在管平面的面内方向和平面外方向上均匀地对接合管提供了积极的约束。
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公开(公告)号：US20090020273A1
公开(公告)日：2009-01-22
申请号：US11779653
申请日：2007-07-18
CPC分类号： F28D7/06 , F22B37/002 , F22B37/20 , F22B37/206 , F28F9/013 , F28F9/0132
摘要： A self-supporting system for positioning and restraining the U-bend tubes in the U-bend region of a nuclear steam generator includes arrays incorporating unique support bars having nubs projecting in the out-of-plane direction of the tube planes. The system also includes assemblies for spacing the arrays, tie bars to prevent the arrays from splaying and saddle bar assemblies to support the outermost tube layers. The system provides positive restraint to nub engaged tubes in both the in-plane direction of the tube planes and the out-of-plane direction.
摘要翻译： 用于定位和限制核蒸汽发生器的U形弯曲区域中的U形弯管的自支撑系统包括具有独特的支撑杆的阵列，其具有在管平面的平面外方向上突出的凸块。 该系统还包括用于间隔阵列的组合件，连接杆以防止阵列展开并且鞍形杆组件支撑最外面的管层。 该系统在管平面的面内方向和平面外方向上均匀地对接合管提供了积极的约束。
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