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公开(公告)号：US4131085A
公开(公告)日：1978-12-26
申请号：US793682
申请日：1977-05-04
申请人： Bertrand N. McDonald
发明人： Bertrand N. McDonald
CPC分类号： F22B1/025 , F22B37/483
摘要： A vapor generating unit having a U-shaped tube bundle is provided with an orificed downcomer shroud and a fluid flow distribution plate between the lower hot and cold leg regions to promote fluid entrained sediment deposition in proximity to an apertured blowdown pipe.
摘要翻译： 具有U形管束的蒸汽发生单元在下部热和冷腿区域之间设置有导向下降管罩和流体流量分配板，以促进在有孔排污管附近的流体夹带的沉积物沉积。
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公开(公告)号：US3915122A
公开(公告)日：1975-10-28
申请号：US42468973
申请日：1973-12-14
申请人： SIEMENS AG
CPC分类号： F22B1/023 , F22B37/483
摘要： A steam generator for a pressurized-water coolant nuclear reactor is of the type having a vertical housing with its lower portion closed by a horizontal tube sheet in which the inlet and outlet legs of an inverted U-shaped tube bundle are mounted, one forming an inlet leg and the other forming an outlet leg for the pressurized-water coolant circulated via the tube bundle and the reactor. The tube bundle is peripherally enclosed by a vertical shell forming a feed-water descent space between it and the housing with this space adjacently above the tube sheet peripherally opening to the latter for radially inwardly directed feed-water flow thereover through the interspaced tubes of the tube bundle legs and upward flow through the latter to generate steam in the housing. The feed-water flow over the tube sheet and through the tubes of the inlet leg, which is the hotter of the two legs, tends to locally boil so that corrosion-promoting products in the feed water are concentrated to form deposits introducing the danger of corrosion failure on the part of the tubes and/or tube sheet. To prevent this, means are provided for removing a portion of the feed water from adjacently above the tube sheet and between the interspaced tubes of the inlet leg, the means preferably removing a plurality of flows of feed water from a plurality of positions interspaced transversely over the tube sheet. The constant removal of the flows of feed-water increases the rate with which the feed water radially flows inwardly over the tube sheet and upwardly through the tube bundle, consequently reducing or eliminating the boiling tendency throughout the critical area where this tendency occurs over the portion of the tube sheet in which the inlet leg of the tube bundle is mounted.
摘要翻译： 用于加压水冷却核反应堆的蒸汽发生器是具有垂直壳体的类型，其下部由水平管板封闭，其中安装了倒U形管束的入口和出口腿，一个形成 入口腿和另一个形成用于经由管束和反应器循环的加压水冷却剂的出口支路。 管束由垂直的外壳围绕，在其与壳体之间形成进水下降空间，该空间相邻地在管板上方，周向地向管的上方开口，用于径向向内定向的给水流经其间的间隔管 管束腿向上流动通过后者，以在壳体中产生蒸汽。 管板上的进水流动和通过两条腿较热的进口支管的管子倾向于局部煮沸，从而将供水中的腐蚀促进产品集中以形成沉积物，从而形成沉积物 管和/或管板部分的腐蚀失效。 为了防止这种情况，提供了用于从管板的相邻上方和入口腿的间隔管之间移除一部分给水的装置，该装置优选地从多个位置横向地间隔开多个进给水流， 管板。 给水流量的恒定除去增加了供水在管板上向内径向流过管束的速率，从而减少或消除了整个临界区域的沸腾趋势，在该区域发生这种趋势， 其中管束的入口腿被安装在管板中。
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公开(公告)号：US3913531A
公开(公告)日：1975-10-21
申请号：US48141574
申请日：1974-06-20
申请人： COMBUSTION ENG
CPC分类号： F28G9/00 , F22B1/025 , F22B37/483 , F28D7/06 , Y10S165/402
摘要： Removal of sediment caused by the settling of suspended particulate material in the secondary liquid circulated through a vapor generator of the shell and tube type is effected by providing a baffle plate closely spaced from the tube sheet therein to define a plenum therebetween. One or more blowdown lines extend from the plenum and the baffle plate contains a plurality of drilled holes through which a limited portion of the secondary liquid passes at a high velocity conducting sediment with it to the blowdown plenum for removal through the blowdown lines.
摘要翻译： 通过壳管式蒸汽发生器循环的二次液体中的悬浮颗粒材料沉降引起的沉积物的去除是通过提供与其中的管板紧密隔开的挡板来限定其间的气室来实现的。 一个或多个排污管线从集气室延伸，并且挡板包含多个钻孔，有限部分的次级液体以高速传导沉积物通过该孔穿过吹扫通风室，以通过排污管线排出。
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公开(公告)号：US20180347807A1
公开(公告)日：2018-12-06
申请号：US15771860
申请日：2016-10-27
申请人： FRAMATOME GMBH
发明人： Zafer ALAZ
CPC分类号： F22B37/483
摘要： The invention relates to a flexible lance for machining or inspecting a tubesheet of a boiler, having a first strip made of a flexible, metallic material and a second strip made of a flexible, metallic material, wherein the second strip is arranged on the first strip in the longitudinal direction, and wherein at least the second strip has a shaped portion extending in the longitudinal direction for receiving a supply line for a machining or inspection head arranged at the free end of the flexible lance, and wherein the first strip is connected to the second strip such that an open side of the shaped portion is covered by the first strip so as to form a guide channel, and wherein at least one edge region of the flexible lance, extending in the longitudinal direction, is formed only by the first strip or the second strip.
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55.发明申请公开(公告)号：US20140360443A1
公开(公告)日：2014-12-11
申请号：US14338368
申请日：2014-07-23
CPC分类号： F22B37/483 , F22B1/025 , F22B37/003 , F22B37/54 , F28D7/06 , F28G1/00 , F28G13/00 , F28G15/08
摘要： A method and apparatus for manipulating a tool within the secondary side of a steam generator having a tube sheet with a tube bundle having a plurality of heat exchange tubes extending from the tube sheet in rows with an annulus extending around the heat exchange tubes on a periphery of the tube bundle, between the tubes and a wrapper which surrounds the tube bundle. A robot is introduced into the annulus and extends a probe with a tool across selected lanes between the rows of tubes. A method and apparatus is also disclosed for cleaning sludge from the top of a tube sheet that includes introducing a moveable suction apparatus having attached vacuum inlets into either the no tube lane or the circumferential annulus and sludge vacuuming the top of the tube sheet.
摘要翻译： 一种用于操纵蒸汽发生器次级侧内的工具的方法和装置，该蒸汽发生器具有管板，该管板具有管束，该管束具有多个热交换管，所述多个热交换管从管板沿着管排延伸，并且环绕周边的热交换管延伸 管束之间，管与围绕管束的包裹物之间。 机器人被引入到环形空间中，并且在管排之间的选定通道上用工具延伸探针。 还公开了一种用于从管板顶部清洗污泥的方法和装置，其包括将具有连接的真空入口的可移动抽吸装置引入到无管道或圆周环形空间中，以及将管板顶部的污泥抽真空。
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公开(公告)号：US20140261246A1
公开(公告)日：2014-09-18
申请号：US13802960
申请日：2013-03-14
CPC分类号： F22B37/483 , F22B37/54 , F28G13/00
摘要： A method of cleaning sludge from the top of tube sheet (34′) of a nuclear steam generator (10) includes introducing a moveable suction apparatus (120) having attached vacuum inlets (148), said moveable suction apparatus introduced through handholes (62) in the side of the generator and into either the no tube lane (60) or the circumferential annulus, and sludge vacuuming the top of the tube sheet (34′).
摘要翻译： 一种从核蒸汽发生器（10）的管板（34'）的顶部清洗污泥的方法包括引入具有附接真空入口（148）的可移动抽吸装置（120），所述可移动抽吸装置通过手孔（62）引入， 在发动机的侧面并且进入无管道（60）或周向环形空间，并且污泥将管板（34'）的顶部抽真空。
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公开(公告)号：US08757104B2
公开(公告)日：2014-06-24
申请号：US13078022
申请日：2011-04-01
IPC分类号： F22B37/48
CPC分类号： F22B37/003 , F22B37/483 , F28D7/06 , F28G3/166 , F28G15/04
摘要： A miniature sludge lance for a steam generator in a pressurized water nuclear reactor is provided. The sludge lance is structured to enter the steam generator via an inspection opening and has a body sufficiently thin to fit between adjacent tubes. The sludge lance rail has at least two types of nozzle assemblies that may be attached thereto. One nozzle assembly rotates and another nozzle assembly translates in a vertical direction. A drive assembly, a mounting assembly, an oscillation assembly, and flow straighteners are also provided.
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公开(公告)号：US08646416B2
公开(公告)日：2014-02-11
申请号：US12938027
申请日：2010-11-02
IPC分类号： F22B37/48
CPC分类号： F22B37/003 , F22B37/483 , F28D7/06 , F28G3/166 , F28G15/04
摘要： A miniature sludge lance for a steam generator in a pressurized water nuclear reactor is provided. The sludge lance is structured to enter the steam generator via an inspection opening and has a body sufficiently thin to fit between adjacent tubes. The sludge lance rail has at least two types of nozzle assemblies that may be attached thereto. One nozzle assembly rotates and another nozzle assembly translates in a vertical direction. A drive assembly, a mounting assembly, an oscillation assembly, and flow straighteners are also provided.
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公开(公告)号：US08468981B2
公开(公告)日：2013-06-25
申请号：US12613639
申请日：2009-11-06
申请人： Jeong-Min Park , Chul-Hyo Kim
发明人： Jeong-Min Park , Chul-Hyo Kim
IPC分类号： F22B37/48
CPC分类号： F22B37/483 , F28G1/166 , F28G15/02
摘要： Provided is a lancing device in which two guide rails and washing robots are installed in both directions of a hand hole, and each washing robot removes precipitates from the center of a steam generator, and therefore precipitates do not flow backwards, thereby completely removing precipitates.
摘要翻译： 本发明提供一种在手孔的两个方向上安装有两个导轨和洗涤机器人的采血装置，并且每个洗涤机器人从蒸汽发生器的中心除去沉淀物，因此沉淀物不向后流动，从而完全除去沉淀物。
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60.发明申请公开(公告)号：US20110271986A1
公开(公告)日：2011-11-10
申请号：US13108627
申请日：2011-05-16
申请人： Jean COLLIN , Ryan Jones , Joshua Luszcz , Marc Kreider , Aaron Pellman , Robert D. Varrin, JR. , David Arguelles
发明人： Jean COLLIN , Ryan Jones , Joshua Luszcz , Marc Kreider , Aaron Pellman , Robert D. Varrin, JR. , David Arguelles
CPC分类号： F28G1/166 , F22B37/483
摘要： Provided area cleaning apparatus and an associated method of using the disclosed apparatus wherein the apparatus utilizes one or more nozzles configured to provide a coherent stream of one or more cleaning fluids for removing accumulated fine particulate matter, sludge, from surfaces. The nozzles may be sized, arranged and configured to provide coherent streams that maintain the initial stream diameter for a substantial portion of the maximum dimension of the space being cleaned. The apparatus and method are expected to be particularly useful in the cleaning of heat exchangers incorporating a plurality of substantially vertical and narrowly spaced tubes by directing cleansing streams along a plurality of intertube spaces.
摘要翻译： 提供的区域清洁设备和使用所公开的设备的相关方法，其中该设备利用一个或多个喷嘴，该喷嘴被配置为提供一个或多个清洁流体的相干流，以从表面去除累积的细颗粒物质，污泥。 喷嘴的尺寸，布置和配置可提供相干流，其保持待清洁空间的最大尺寸的大部分的初始流直径。 预期该装置和方法特别可用于通过沿着多个管间空间引导清洁流来清洗结合有多个基本垂直和狭窄间隔的管的热交换器。
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