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公开(公告)号：US4249593A
公开(公告)日：1981-02-10
申请号：US4634
申请日：1979-01-19
CPC分类号： F28F1/003 , F22B1/066 , F28F2265/26
摘要： A straight shell and tube heat exchanger utilizing double wall tubes and three tubesheets to ensure separation of the primary and secondary fluid and reliable leak detection of a leak in either the primary or the secondary fluids to further ensure that there is no mixing of the two fluids.
摘要翻译： 采用双壁管和三个管板的直管壳和热交换器，以确保主流体和次要流体的分离，以及对主流体或次流体中泄漏的可靠的泄漏检测，以进一步确保两种流体不混合 。
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公开(公告)号：US5329886A
公开(公告)日：1994-07-19
申请号：US100845
申请日：1993-08-02
申请人： Robert L. Sylvester , Randall C. Johnson , Gregory V. Smith , King W. Chan , Willis B. Middlebrooks, III , Jawahar K. Visaria , Robert M. Wilson , George Bieberbach
发明人： Robert L. Sylvester , Randall C. Johnson , Gregory V. Smith , King W. Chan , Willis B. Middlebrooks, III , Jawahar K. Visaria , Robert M. Wilson , George Bieberbach
IPC分类号： F22B1/02
CPC分类号： F22B1/025
摘要： This patent discloses a secondary fluid supply system for a steam generator used in nuclear reactor power plants. The secondary fluid supply system comprises a secondary fluid (feedwater) inlet nozzle near the base of the steam generator shell, a feedwater riser pipe spaced between the shell of the steam generator and the tube bundle wrapper, the upper end of the feedwater riser pipe being connected to a distribution ring having a plurality of spray nozzles positioned in the recirculating pool above the top of the U-shaped heat exchanger tubes.
摘要翻译： 该专利公开了一种用于核反应堆发电厂的蒸汽发生器的二次流体供应系统。 第二流体供应系统包括在蒸汽发生器壳体的基部附近的次级流体（给水）入口喷嘴，在蒸汽发生器的壳体和管束包裹物之间间隔开的给水提升管，给水提升管的上端为 连接到具有位于U形热交换器管的顶部上方的再循环池中的多个喷嘴的分配环。
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公开(公告)号：US4266600A
公开(公告)日：1981-05-12
申请号：US35870
申请日：1979-05-03
申请人： George Bieberbach
发明人： George Bieberbach
CPC分类号： F28D7/16 , F28F1/003 , F28F9/0229 , F28F2265/26
摘要： A plurality of double walled tubes are so disposed between a pair of spaced apart tube sheets so that the outer wall terminates adjacent one tube sheet and the inner wall terminates adjacent the other tube sheet and a shell portion enclosing the space between the tube sheets is removably attached to the tube sheets.
摘要翻译： 多个双壁管设置在一对间隔开的管板之间，使得外壁邻近一个管板终止，并且内壁邻近另一管板终止，并且封闭管板之间的空间的外壳部分是可移除的 附在管板上。
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4.发明授权Latching device for securing a closure to a cask for transporting radioactive waste 失效用于将封闭物固定到用于运输放射性废物的桶的闭锁装置
公开(公告)号：US5018772A
公开(公告)日：1991-05-28
申请号：US352426
申请日：1989-05-16
CPC分类号： G21F5/12 , Y10T292/0843 , Y10T292/214
摘要： A closing device for removably securing and sealing engaging a closure around an opening in a transportation cask for radioactive materials is disclosed herein. The closing device comprises a plurality of shear key assemblies uniformly spaced around the outer portion of the closure, each of which includes a shear key having an elongated bolt portion movably mounted in the closure, as well as a latch portion connected to one end of the bolt portion that is insertable into and retractable out of a slot located in the edge of the cask that defines the cask opening. The latch portion is beveled so as to wedgingly engage the slot when inserted therein in order to apply a sealing pressure around the outer edge of the closure. The width of the latch portion of the key is substantially larger than the bolt portion, thereby giving the shear key a T-shaped profile. The broad width of the bolt portion allows the shear key to more uniformly distribute a sealing pressure around the closure. The closing device also includes either a single or multiple drive mechanisms for forcing the latch portions of the shear keys into and out of the slots in the cask. The single drive mechanism is extremely rapid in operation and advantageously applies the same amount of closing force to each shear key simultaneously, while the use of multiple drive mechanisms affords more uniform sealing pressure around the closure edge and more effective radiation shielding properties to the closure.
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