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公开(公告)号：US5164151A
公开(公告)日：1992-11-17
申请号：US719442
申请日：1991-06-24
CPC分类号： F22B37/003 , F22B37/222
摘要： In an enclosure of a heat exchanger that includes a wall having an opening for access to the enclosure and a nozzle for fluid flow through the wall, an articulate hoist for bringing an articulate manipulator into the enclosure is attached to the wall outside the opening. The lifting portion of the hoist, which is in the enclosure brings the manipulator into the enclosure. The manipulator which is is then attached to the wall outside the opening is adapted for reaching through the opening from inside the enclosure. A tool operator portion of the manipulator is adapted for engaging a nozzle dam for inserting the dam in the nozzle. One type of nozzle dam which the apparatus can install is one that falls within the description of a claim of U.S. Pat. No. 4,957,215.
摘要翻译： 在热交换器的外壳中，其包括具有用于进入外壳的开口的壁和用于流体流过壁的喷嘴，用于将铰接式操纵器引入外壳的铰接式葫芦附接到开口外部的壁。 外壳中的提升机的提升部分将操纵器带入外壳。 然后将机械手附接到开口外侧的壁适于从外壳内部穿过开口。 操纵器的工具操作器部分适于接合用于将大坝插入喷嘴中的喷嘴坝。 装置可以安装的一种类型的喷嘴坝是属于美国专利申请的权利要求的描述之一。 第4,957,215号。
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公开(公告)号：US5325406A
公开(公告)日：1994-06-28
申请号：US121394
申请日：1993-09-15
IPC分类号： F16L55/11 , F16L55/115 , F22B37/22 , G21C13/067 , G21C19/02 , G21C13/00
CPC分类号： F22B37/222 , F16L55/11 , F16L55/115 , G21C13/067 , G21C19/02 , G21Y2002/202 , G21Y2004/301 , Y02E30/40
摘要： A nozzle dam automatically latches on an annular ledge surrounding the nozzle opening. A pivotal latch arm on the dam, biased to the locked position is forced toward the unlocked position by a cam on the ledge as the nozzle is pressed on the ledge, and snaps into engagement with the ledge when the dam is fully seated over the opening. A bias arm may be operated by a wrench to pivot the latch arm toward the unlocked position until a detent locks the latch arm in the unlocked position.
摘要翻译： 喷嘴坝自动锁定在围绕喷嘴开口的环形凸缘上。 当水坝完全安置在开口上时，位于坝上的偏压到锁定位置的枢转锁定臂被凸缘上的凸轮压向锁定位置时被迫朝向解锁位置，当喷嘴被按压在凸缘上时， 。 偏置臂可以通过扳手操作以将闩锁臂朝向解锁位置枢转，直到制动器将闩锁臂锁定在解锁位置。
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公开(公告)号：US4436692A
公开(公告)日：1984-03-13
申请号：US347509
申请日：1982-02-10
申请人： Donald D. Stenabaugh
发明人： Donald D. Stenabaugh
IPC分类号： G21C13/028 , G21C19/04
CPC分类号： G21C13/0285 , Y02E30/40
摘要： There are disclosed method and apparatus for plugging the underwater recirculating nozzle of a boiling water reactor vessel. The method includes the lowering of a plug by a secondary cable into the annular space between the vessel sidewall and the nuclear fuel shroud. The cable is displaced outwardly, permitting the plug to enter the space between the sidewall and the jet pumps. Cable and plug are then shifted laterally into position over the nozzle, the weight of the plug being taken by a primary cable which lowers the plug into position. A special apparatus is provided which rests upon the core shroud and performs the steps of displacing and laterally shifting the cable.
摘要翻译： 公开了一种用于堵塞沸水反应堆容器的水下循环喷嘴的方法和装置。 该方法包括通过二次电缆将插头降低到容器侧壁和核燃料护罩之间的环形空间中。 电缆向外移位，允许插头进入侧壁和喷射泵之间的空间。 然后电缆和插头横向移动到喷嘴上方的位置，插头的重量由主电缆取下，从而将插头降低到位。 提供了一种特别的设备，其安置在芯护罩上，并执行移动和横向移动电缆的步骤。
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公开(公告)号：US4086806A
公开(公告)日：1978-05-02
申请号：US763311
申请日：1977-01-28
IPC分类号： F16J15/46 , F16L55/134 , G01M3/02 , G01M3/28
CPC分类号： G01M3/022 , F16J15/46 , F16L55/134
摘要： In an apparatus for pressure testing open-ended pipes or the like there is provided a novel sealing means to form an air-tight seal between the open end of a pipe to be tested and an end plate of a pipe supporting test fixture. The sealing means comprises a continuous, annular, yieldable sealing member of triangular cross-section supported on the end plate. A pneumatically expandable annular actuator is associated with the continuous sealing member. The sealing member is normally spaced radially and axially from the junction area of the pipe end and test fixture end plate. The pneumatically inflatable actuator is operative to expand the continuous yieldable sealing element radially and simultaneously to advance it longitudinally, whereby the triangular sealing member is tightly wedged into said junction area to form a preliminary seal. When test pressure is applied, it acts upon the triangular sealing member to increase the seal effectiveness.
摘要翻译： 在用于对开口管等进行压力测试的装置中，提供了一种新颖的密封装置，用于在待测试管道的开口端和管道支撑测试夹具的端板之间形成气密密封。 密封装置包括支撑在端板上的连续的，环形的可收缩的三角形横截面的密封构件。 气动可膨胀环形致动器与连续密封构件相关联。 密封构件通常与管端和测试夹具端板的接合区域径向和轴向间隔开。 气动充气致动器可操作以使连续可屈服的密封元件径向膨胀并且同时使其纵向前进，由此三角形密封件紧密地楔入所述接合区域中以形成初步密封。 当施加测试压力时，其作用在三角形密封构件上以增加密封效果。
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