公开(公告)号：EP3505277A1

公开(公告)日：2019-07-03

申请号：EP18215092.0

申请日：2018-12-21

申请人： HITACHI-GE NUCLEAR ENERGY, LTD.

发明人： HIRANO, Sei ,  KIYOTOKI, Yoshihisa ,  MIYATA, Hajime ,  KAWANAKA, Hirotsugu ,  MATSUSHITA, Shinji ,  SHIRATORI, Hiroshi

IPC分类号： B22F3/115 ,  B23P15/00 ,  C22C1/04 ,  C22F1/10 ,  F01L3/04 ,  F01L3/08 ,  F16K3/02 ,  F16K3/12 ,  F16K25/00 ,  G21C17/022 ,  B23K26/342 ,  F01L3/02 ,  C23C4/06 ,  C23C4/10 ,  C23C4/12 ,  C22C19/07 ,  C23C24/10 ,  B22F7/04

摘要： The invention is intended to improve the corrosion resistance of an overlay used in a severe environment such as a nuclear power plant, and to reduce dissolution of cobalt from an overlay. The corrosion and wear resistant overlay 7 is formed along a surface of a base 2 by using laser lamination modeling, and is configured from a plurality of metal layers 1a, 1b, 1c, and 1d of a Co-base alloy. The size (thickness) of carbide eutectics that precipitate in the metal layers la, 1b, 1c, and 1d is the largest in the metal layer 1a closest to the base 2, and is gradually smaller in the metal layers 1b, 1c, and 1d farther away from the base 2. The intensity of the laser beam applied to form layers by laser lamination modeling is appropriately adjusted so that the carbide eutectics that precipitate in at least the outermost metal layer 1d have a controlled size of 10 µm or less.

公开(公告)号：EP3239574A1

公开(公告)日：2017-11-01

申请号：EP17167406.2

申请日：2017-04-20

申请人： Surpass Industry Co., Ltd.

发明人： HIRAI, Kazuki

IPC分类号： F16K31/50 ,  F16K3/12 ,  F16K7/14 ,  F16K7/16

摘要： Provided is a flow rate adjustment device (100) including: a diaphragm integrated valve body (10); a valve seat section (21) provided around an inflow opening (22a) and including a valve seat surface (21a) disposed at a position facing a valve surface (11a); and a transfer mechanism configured to cause the diaphragm integrated valve body (10) to move along an axis line (X) to adjust a distance between the valve surface (11a) and the valve seat surface (21a). The valve surface (11a) and the valve seat surface (21a) form an angle (θ), which is an acute angle, with the axis line (X) and are disposed in parallel.

摘要翻译： 本发明提供一种流量调整装置（100），该流量调整装置（100）具备：膜片一体型阀体（10） 阀座部（21），其设置在流入开口（22a）的周围，且包括配置在与阀面（11a）相对的位置的阀座面（21a）; 以及传递机构，该传递机构构造成使所述膜片集成阀体（10）沿着轴线（X）移动以调节所述阀表面（11a）和所述阀座表面（21a）之间的距离。 阀面（11a）和阀座面（21a）与轴线（X）形成锐角（θ），并且平行配置。

公开(公告)号：EP1554513B2

公开(公告)日：2016-01-27

申请号：EP03778428.7

申请日：2003-10-21

申请人： Saint-Gobain PAM

发明人： BIDU, Philippe ,  GROJEAN, Daniel ,  MORECROFT, Richard

IPC分类号： F16K3/12 ,  F16K3/316

CPC分类号： F16K3/12 ,  F16K3/316

公开(公告)号：EP2743550A2

公开(公告)日：2014-06-18

申请号：EP14000958.0

申请日：2010-12-23

申请人： Tyco Water Valve (Shanghai) Co. Ltd.

发明人： Tucker, Ealden ,  Zhang, Ying ,  Pu, Changlie

IPC分类号： F16K3/28 ,  F16K3/30 ,  F16D9/08 ,  F16K3/12

CPC分类号： F16K3/0254 ,  F16D9/08 ,  F16K3/0263 ,  F16K3/12 ,  F16K3/28 ,  F16K3/316 ,  F16K31/508

摘要： The invention provides a non-rising spindle gate valve, comprising a body (2), a bonnet (3) connected to the body (2), a stem (4), a wedge (5) and a shear device (6), an upper end of said stem (4) being connected to the shear device (6) and a lower end thereof being connected to the wedge (5), wherein said stem (4) is relatively rotatably supported in said bonnet (3) by rolling bearings. The gate valve uses a shear device (6) to protect inner components of the valve from excessive operation torque. Guides are used to position the wedge in a process of rubber coating so as to ensure uniform thickness of coating. The gate valve has a small operation torque, is sealed reliably, has a long service life, and is easy to assemble.

公开(公告)号：EP2189691A1

公开(公告)日：2010-05-26

申请号：EP09013983.3

申请日：2009-11-06

申请人： AREVA NP GmbH

发明人： Kradepohl, Paul

IPC分类号： F16K3/12

CPC分类号： F16K3/12

摘要： Eine Absperrarmatur (1) für ein Rohrleitungssystem (2) mit einem beidseits mit Rohranschlüssen versehenen Schiebergehäuse (4) und mit einem Absperrelement (6), das senkrecht zur Rohrleitungsachse (A) in eine Schließstellung einschiebbar ist, wobei das Absperrelement (6) ein Stellglied (8) und eine Anzahl von elastischen Dichtelementen (48, 50) umfasst, und wobei die Rohranschlüsse mit Sitzflächen (36, 38) für das Absperrelement (6) versehen sind, soll derart beschaffen sein, dass die erzielbare Sitzdichtheit auch bei und nach der Absperrung von hochenergetischen Fluidströmen erhalten bleibt. Dazu ist erfindungsgemäß der in der Schließstellung erzielte Abstand zwischen dem Stellglied (8) und den Sitzflächen (36, 38) derart ausgelegt, dass eine Verformung der Dichtelemente (48, 50), die deren Grenzen der Elastizität überschreitet, ausgeschlossen ist.

摘要翻译： 阀（1）具有在两侧设置有管道连接的阀壳体（4）。 关闭元件（6）在关闭位置垂直于管道轴（A）延伸。 切断元件包括致动器（8）和一组弹性密封元件（48,50），并且管道连接件设置有用于切断元件的座面（36,38）。 致动器和座面之间的距离被设计成使得密封元件的变形超过弹性极限的方式被防止。

公开(公告)号：EP1649150A4

公开(公告)日：2010-05-26

申请号：EP04751852

申请日：2004-05-10

申请人： OCCLUDE

发明人： MAICHEL JEFFREY L ,  SOVILLA THOMAS A

IPC分类号： F02B27/00 ,  F16K3/00 ,  F16K3/12 ,  F16K43/00 ,  F16K51/00

CPC分类号： F16K3/12 ,  F16K43/00 ,  Y10T137/0486 ,  Y10T137/6072 ,  Y10T137/6109 ,  Y10T137/6113

公开(公告)号：EP1878956A1

公开(公告)日：2008-01-16

申请号：EP06731461.7

申请日：2006-04-03

申请人： Ota, Mitsuhiko

发明人： Ota, Mitsuhiko

IPC分类号： F16K3/10 ,  F16K3/12 ,  F16K31/53

CPC分类号： F16K31/535 ,  F16K3/06 ,  F16K3/10

摘要： A valve device capable of solving problems in a conventional valve device using a planetary gear as valve plates wherein its closing capability as a valve function developed by closing clearances between the valve plates and valve seats does not become complete since the degree of freedom of the valve plates is limited due to the slidable contact of the valve plates on guide portions therefor and due to tolerances of and friction between the teeth of the planetary gear, a sun gear, and an internal gear, the seal surfaces of the valve seats are damaged and the valve closing function is adversely affected due to the slidable contact of the seal surfaces of the valve seats on the moving valve plates, and adjustment for reducing an opening force and securing the valve closing function is indispensable for a conventional stop valve. This valve device comprises a planetary gear formed in a ring shape, and two sheets of valve plates are partly installed in the hole part of the planetary gear oppositely to each other to realize rapid opening and closing by high opening and closing speed and a reduction in installation space. Thus, the valve device thus provided can eliminate the need of reducing the operating force of a conventional stop valve and adjusting (working) to secure the closing function of the valve and remarkably improve the valve function and the productivity.

摘要翻译： 一种能够解决使用行星齿轮传统的阀装置作为阀板的问题的阀装置，其中通过关闭阀板和阀座之间的间隙而形成的作为阀功能的关闭能力并未完成，因为阀的自由度 由于阀板在其引导部分上的滑动接触，并且由于行星齿轮，太阳齿轮和内齿轮的齿之间的公差和摩擦力，板受到限制，并且阀座的密封表面被损坏并且 由于阀座的密封表面在移动的阀板上的滑动接触，阀关闭功能受到不利影响，并且用于减小打开力和确保阀关闭功能的调节对于传统的截止阀是必不可少的。 该阀装置包括形成为环形的行星齿轮，并且两片阀板部分地相对彼此地安装在行星齿轮的孔部中，以通过高开关速度实现快速打开和关闭，并且减少 安装空间。 因此，这样设置的阀装置可以消除为了确保阀的关闭功能而减小常规截止阀的操作力和调节（工作）的需要，并显着改善阀功能和生产率。

公开(公告)号：EP1523634A4

公开(公告)日：2006-05-24

申请号：EP03765544

申请日：2003-07-14

申请人： MCWANE INC

发明人： BOTTENFIELD JERRY

IPC分类号： F16K3/02 ,  F16K3/12 ,  F16K3/316 ,  F16K3/00

CPC分类号： F16K3/3165 ,  F16K3/12

摘要： A valve arrangement (10) includes a valve housing (12) that defines a product passageway (16) and a valve seat within the product passageway (16). A valve wedge (30) is disposed within the housing passageway, and moves along a direction of operation between a closed position and an open position. A pair of opposed wings (46, 48) are carried on the valve wedge (30), adjacent a guide track (56, 58). Rollers (62) are carried on the wings (46, 48) for rolling engagement with the tracks (56, 58) and scraper blades (70, 79) are carried on the wings (46, 48) adjacent the rollers (62) to scrape contamination from tracks (56, 58).

公开(公告)号：EP1128103A2

公开(公告)日：2001-08-29

申请号：EP01300990.7

申请日：2001-02-05

申请人： Hitachi, Ltd.

发明人： Chigasaki, Mitsuo ,  Matsushita, Shizuo ,  Kuniya, Jiro ,  Kiyotoki, Yoshihisa ,  Kato, Takahiko ,  Chiba, Yoshiteru

IPC分类号： F16K3/12

CPC分类号： F16K3/12 ,  Y10T137/7036

摘要： The object of the present invention is to provide a valve characterized by excellent corrosion and wear resistance and maintainability by bonding corrosion and wear proof alloy containing non-continuously distributed eutectic carbide to the sliding portions of various types of apparatuses and valves by diffusion bonding. Another object of the present invention is to improve the maintainability of a thermal and nuclear power plant and to provide a nuclear power plant comprising the recirculating water which ensures excellent working safety, in particular.
A valve and apparatus of a power plant using said valve characterized in that corrosion and wear proof alloy is bonded to the sliding portion, wherein said corrosion and wear proof alloy is further characterized in that network-formed eutectic carbide in the alloy containing the cast structure base metal and eutectic carbide is formed into( multiple) granules or lumps having the particle size of 30 microns or less so that said eutectic carbide is non-continuously distributed.

公开(公告)号：EP1062444A1

公开(公告)日：2000-12-27

申请号：EP96936886.9

申请日：1996-10-22

申请人： Kalsi Engineering, Inc.

发明人： KALSI, Manmohan, Singh ,  ALVAREZ, Patricio, Daniel ,  WANG, Jaw-Kuang

IPC分类号： F16K3/12

CPC分类号： H04L25/03038 ,  H04L7/041 ,  H04L25/0226 ,  H04L25/0228 ,  H04L25/0244 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/03477 ,  H04L2025/03605 ,  H04L2025/03617 ,  H04L2025/03656 ,  H04L2025/03726 ,  H04L2025/0377 ,  H04L2025/03789 ,  H04L2027/0042

摘要： A wedge gate valve (10) having a valve body (12) defining a valve chamber (20) and flow passages (18, 19) and upwardly diverging circular seat surfaces (28) of circular, flat configuration and defining seat planes. A valve disk or wedge (32) having downwardly converging sealing surfaces (34) is movable within said valve chamber between open and closed positions for controlling flow through the valve. Pressure boundary plates (60) connected by hubs (63) to the valve disk define the sealing surfaces of the disk and have bottom corners that establish line contact with the downstream seat surface and prevent any portion of said sealing surfaces of said valve disk from crossing the sealing plane of the downstream seat in the event of flow responsive downstream movement of the valve disk during its opening and closing movement.