公开(公告)号：US20210110943A1

公开(公告)日：2021-04-15

申请号：US17131922

申请日：2020-12-23

申请人： BWXT Canada Ltd.

发明人： Kareem M.A. ALY

IPC分类号： G21C15/22 ,  F22B1/02 ,  F22B37/20 ,  F28D7/06 ,  F28F9/013 ,  G21C15/14 ,  G21C15/24 ,  G21C15/243 ,  G21D1/00

摘要： Arrangement for supporting U-bend tube sections in the high heat environment of steam generators using flat bars. The invention uses a combination of thicker and thinner flat bars to impart a serpentine path to the arc of the normally curvilinear U-tubes. The support system accommodates the dilation and contraction of coolant tubes and other elements caused by the extreme and varying conditions inside a steam generator, and which can cause gaps between coolant tubes and prior art tube support bars. Bars of alternating thickness provide alternating offsets to tensionally push and support each tube on multiple sides and in multiple locations, and this tension keeps the tubes in contact with at least some flat bars on multiple sides regardless of size and shape changes. Support arrangement includes a set of fan bars, each fan bar including thick and thin flat bars projecting up and out from a collector bar.

公开(公告)号：US10935232B2

公开(公告)日：2021-03-02

申请号：US16309616

申请日：2017-07-21

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Masaaki Katayama ,  Masatsugu Monde ,  Kazuo Hirota ,  Naoki Ono

IPC分类号： F22B37/20 ,  F16F3/02 ,  F16F15/073 ,  F28D7/06 ,  F16F15/02 ,  G21D1/00 ,  F22B1/02

摘要： A vibration damping structure for a heat-transfer tube bundle including columns arranged at an interval and each composed of a plurality of heat-transfer tubes curved in a common plane and arranged in parallel to each other. The vibration damping structure includes a first vibration damping member and a second vibration damping member disposed between the columns so as to intersect the array direction of the columns. The first vibration damping member and the second vibration damping member are disposed at different positions in an axial direction of each heat-transfer tube, and thicknesses of the first vibration damping member and the second vibration damping member in the array direction are larger than an average value of a clearance between the columns under operation.

公开(公告)号：US20200350085A1

公开(公告)日：2020-11-05

申请号：US16934479

申请日：2020-07-21

申请人： BWXT Canada Ltd.

发明人： Kareem M.A. ALY

IPC分类号： G21C15/22 ,  F22B37/20 ,  F28D7/06 ,  F28F9/013 ,  F22B1/02 ,  G21C15/14 ,  G21C15/24 ,  G21C15/243 ,  G21D1/00

摘要： Arrangement for supporting U-bend tube sections in the high heat environment of steam generators using flat bars. The invention uses a combination of thicker and thinner flat bars to impart a serpentine path to the arc of the normally curvilinear U-tubes. The support system accommodates the dilation and contraction of coolant tubes and other elements caused by the extreme and varying conditions inside a steam generator, and which can cause gaps between coolant tubes and prior art tube support bars. Bars of alternating thickness provide alternating offsets to tensionally push and support each tube on multiple sides and in multiple locations, and this tension keeps the tubes in contact with at least some flat bars on multiple sides regardless of size and shape changes. Support arrangement includes a set of fan bars, each fan bar including thick and thin flat bars projecting up and out from a collector bar.

公开(公告)号：US20200292164A1

公开(公告)日：2020-09-17

申请号：US16650079

申请日：2017-10-17

申请人： SUMITOMO SHI FW ENERGIA OY

发明人： Pentti LANKINEN ,  Heikki HOLOPAINEN ,  Jussi POLLARI ,  Martyna POREBA-SEBASTJAN ,  Slawomir SOLIPIWKO

IPC分类号： F22B37/24 ,  F22B37/20

摘要： A boiler construction includes a boiler pressure body having a bottom and a roof at a height H from the bottom and at least four planar watertube walls forming a polygonal horizontal cross section with at least four corner sections, and a rigid support steel structure, the boiler pressure body being supported to the rigid support steel structure at a height between the bottom and roof. A vertical corner column is attached exteriorly to at least four of the at least four corner sections at a height region between the bottom and roof, and the supporting of the boiler pressure body is provided by supporting each of the vertical corner columns to the rigid support steel structure at a height from 0.1 H to 0.9 H from the bottom so as to balance vertical loads of the boiler pressure body.

公开(公告)号：US10442999B2

公开(公告)日：2019-10-15

申请号：US15564355

申请日：2016-04-12

申请人： BIRWELCO USA Inc.

发明人： Walter F Gull

IPC分类号： F22B37/20 ,  C10G9/20 ,  F27D99/00 ,  F28F9/013 ,  F28D7/02 ,  F28D7/08 ,  F28D21/00

摘要： Apparatus and methods are described for novel radiant tube coil support designs that are insertable through holes in the casing walls of fired heaters from the outside of the heater.

公开(公告)号：US20190186358A1

公开(公告)日：2019-06-20

申请号：US16311295

申请日：2017-10-11

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Fumihiro Chuman ,  Masashi Kitada ,  Makoto Toyomaru

IPC分类号： F02C3/28 ,  F23M5/08 ,  F22B37/20 ,  F02C6/18 ,  F01K23/10 ,  C10J3/48 ,  C10J3/52

CPC分类号： F02C3/28 ,  C10J3/46 ,  C10J3/48 ,  C10J3/485 ,  C10J3/526 ,  C10J2300/165 ,  C10J2300/1675 ,  F01K23/10 ,  F02C6/18 ,  F22B37/20 ,  F23M5/08 ,  Y02E20/16

摘要： The purpose of the present invention is to provide a furnace wall in which a throat section with a smaller channel diameter than other regions can be formed using all peripheral wall tubes. Provided is a furnace wall comprising: a plurality of peripheral wall tubes (142), which are disposed so as to form a cylindrical shape when aligned in one direction and through the interior of which cooling water flows; and fins (140) that connect neighboring peripheral wall tubes (142) in an airtight manner. In a throat section in which the diameter of a horizontal cross-section of the cylindrical shape is reduced in comparison to other regions, the peripheral wall tubes (142) are disposed so as to be in mutual contact and the fins (140) are disposed on the inner circumferential sides of the cylindrical shapes.

公开(公告)号：US09403205B2

公开(公告)日：2016-08-02

申请号：US14922495

申请日：2015-10-26

申请人： NuScale Power, LLC

发明人： Dennis Keith Williams ,  Douglas Paul Fassett ,  Brent J. Webb ,  William J. Bees ,  Alex Scott Kruskamp

IPC分类号： B23P15/26 ,  B21D53/08 ,  F22B29/06 ,  F22B37/10 ,  F22B37/20 ,  F22B37/74 ,  B21D53/02 ,  F22B1/02

CPC分类号： B23P15/26 ,  B21D53/02 ,  B21D53/08 ,  F22B1/023 ,  F22B29/064 ,  F22B37/104 ,  F22B37/205 ,  F22B37/74 ,  Y10T29/49362 ,  Y10T29/49364

摘要： A steam generator includes a lower integrated tubesheet and plenum (ITP) configured to receive feedwater and a first set of heat transfer tubes fluidly coupled to a plurality of stubs protruding from a first side of the lower ITP. A second set of heat transfer tubes fluidly couples to plurality of stubs protruding from a second side of the lower ITP. The first set of heat transfer tubes is coiled in a substantially clock-wise direction, and the second set of heat transfer tubes is coiled in a substantially counter-clockwise direction. The steam generator further includes an upper ITP fluidly coupled to the first and second set of heat transfer tubes, wherein the feedwater entering the lower ITP is converted to steam in the first and second sets of heat transfer tubes. The upper ITP is configured to transport the steam away from the steam generator.

公开(公告)号：US20160186988A1

公开(公告)日：2016-06-30

申请号：US14972571

申请日：2015-12-17

申请人： RINNAI CORPORATION

发明人： Shigeki Shimada

IPC分类号： F22B37/20

CPC分类号： F22B37/20

摘要： A boiler connection system includes: a plurality of heat source device; and a controller. Each of the plurality of heat source devices includes: a first heat exchanger; a heat medium heating circuit branching at one end thereof from a heat medium return pipe and connected at another end thereof to a heat medium outgoing pipe via the first heat exchanger; a bypass pipe connected to the heat medium heating circuit so as to bypass the first heat exchanger; a pressure-feed device provided on the heat medium heating circuit; a flow passage switching valve; a second heat exchanger provided on the bypass pipe; and a water heating circuit branching at one end thereof from the water supply pipe and connected at another end thereof to a hot water supply pipe via the second heat exchanger.

摘要翻译： 锅炉连接系统包括：多个热源装置; 和控制器。 多个热源装置中的每一个包括：第一热交换器; 热介质加热回路，其一端从热介质返回管分支，并在其另一端通过第一热交换器连接到热介质输出管; 旁通管，其连接到所述热介质加热回路以绕过所述第一热交换器; 设置在所述热介质加热回路上的加压装置; 流路切换阀; 设置在旁通管上的第二热交换器; 以及一个加热回路，其一端从供水管分支，并在另一端通过第二热交换器连接到热水供应管。

公开(公告)号：US09347662B2

公开(公告)日：2016-05-24

申请号：US14031124

申请日：2013-09-19

申请人： Babcock & Wilcox Canada Ltd.

发明人： Richard G Klarner ,  Robert S Horvath ,  Ghasem V Asadi ,  Thomas Waring

IPC分类号： F22B37/20 ,  F28D7/16 ,  F28F9/013

CPC分类号： F22B37/205 ,  F28D7/16 ,  F28F9/0131 ,  Y10T29/4935 ,  Y10T29/49373

摘要： An apparatus in a steam generator that employs tube support plates within a shroud that is in turn disposed within a shell. The tube support plates are made of a material having a coefficient of thermal expansion lower than that of the shroud. The tube support plates are aligned during fabrication with minimal clearances between components. Using a tube support displacement system, a controlled misalignment is imposed on one or more tube support plates as the steam generator heats up. The tube support plate displacement system has only two parts, a spring bar and a push rod, that are internal to the steam generator shell and threadably engaged, thereby minimizing the potential of loose parts. The tube support plate displacement system can be used to provide controlled misalignments on one or more tube support plates, with one or more apparatus being provided for any individual tube support plate.

摘要翻译： 一种蒸汽发生器中的装置，其使用管壳内的管支撑板，壳体又设置在壳体内。 管支撑板由热膨胀系数低于护罩的材料制成。 管支撑板在制造期间对准，部件之间的间隙最小。 使用管支撑位移系统，当蒸汽发生器加热时，受控的对准被施加在一个或多个管支撑板上。 管支撑板位移系统只有两部分，一个弹簧杆和一个推杆，它们位于蒸汽发生器壳体的内部并螺纹接合，从而使松动部件的电位最小化。 管支撑板位移系统可以用于在一个或多个管支撑板上提供受控的对准，其中一个或多个装置设置用于任何单独的管支撑板。

公开(公告)号：US20150083365A1

公开(公告)日：2015-03-26

申请号：US14036636

申请日：2013-09-25

申请人： Westinghouse Electric Company LLC

发明人： PADMANABHA J. PRABHU ,  Robert M. Wepfer

IPC分类号： F22B37/20

CPC分类号： F22B37/206 ,  F22B1/025 ,  F28F9/0132 ,  F28F2265/30

摘要： A steam generator includes a tube bundle having a plurality of tubes, arranged in rows and columns. The first column of tubes includes a first tube having a curved center line disposed in a first plane. The second column of tubes includes a second tube having a curved center line disposed in a second plane, the second plane being parallel to and spaced a distance from the first plane. The steam generator further includes a first number of solid anti-vibration bars disposed between the first column of tubes and the second column of tubes; wherein each of the tubes has a tube outer diameter; and wherein each of the first number of anti-vibration bars has a thickness generally transverse to the first and second planes, the thickness being greater than the distance between the first and second planes minus the tube outer diameter.

摘要翻译： 蒸汽发生器包括具有排列成行和列的多个管的管束。 第一列管包括具有设置在第一平面中的弯曲中心线的第一管。 第二列管包括具有设置在第二平面中的弯曲中心线的第二管，第二平面平行于第一平面并与第一平面间隔一距离。 蒸汽发生器还包括设置在第一列管和第二管柱之间的第一数量的固体防振条; 其中每个管具有管外径; 并且其中所述第一数量的防振条中的每一个具有大致横向于所述第一和第二平面的厚度，所述厚度大于所述第一和第二平面之间的距离减去所述管外径。