CN105042095B - 用于控制阀的流动路径速度调节器 - Google Patents

用于控制阀的流动路径速度调节器 Download PDF

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CN105042095B
CN105042095B CN201510264019.1A CN201510264019A CN105042095B CN 105042095 B CN105042095 B CN 105042095B CN 201510264019 A CN201510264019 A CN 201510264019A CN 105042095 B CN105042095 B CN 105042095B
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control member
valve
sealing element
longitudinal axis
degrees
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CN105042095A (zh
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D·G·罗柏
H·J·麦金尼
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Emerson Process Management Regulator Technologies Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)
  • Flow Control (AREA)

Abstract

一种流动路径速率调节器，其允许控制阀的控制构件非常接近座环运行，同时降低或排除限制的流体区域，其结果是极大地降低流动速率波动，从而在密封元件和密封环之间形成更平稳的流体。结果，由相对软的原料制成的密封元件可被使用而不害怕高流动速率引起的损坏。

Description

用于控制阀的流动路径速度调节器
技术领域
本发明公开一般地关于流体控制阀，更特别地，关于用于流体控制阀的流动路径速度调节器。
背景技术
流体控制装置包括多个种类的设备，包括控制阀和调节器。这些控制装置适于耦接在流体过程控制系统如化学处理系统、天然气回收系统等系统中，以进而控制流体的流动。每一控制装置限定一流体流动路径并且包括用于调整流动路径尺度的控制构件。例如，图1描述了一种已知的控制阀调节器组件10，包括阀体12和致动器14。阀体12限定了一流动路径16并且包括一喉部18。图1中，调节器组件10配置为向上流动配置。致动器14包括上致动器壳体20、下致动器壳体22、包括隔膜32的隔膜组件30以及控制构件24。
控制构件24设置在上、下致动器壳体20、22中，并且适于响应经过隔膜组件30的压强变化双方向移动。如此设置，控制构件24控制流体流经喉部18。在一些应用中，保持器31被紧固在控制构件24的底部。该保持器将密封部件28固定至控制构件24的底部。该保持器31包括下表面33，下表面33位于控制构件24的远端并且具有通常的凸起的形状，其向外延伸超出密封元件28，并且当调节器组件10在打开位置时流体流动越过该下表面33。另外，调节器组件10包括设置在阀体12的喉部18中的座环26。当阀体12外压力高时，控制构件24的密封元件28可密封地接合座环26并且关闭喉部18。相似地，致动器14中的或由隔膜32故障导致的任何压力的缺失，设置在上致动器壳体20的环形空腔部36之中的螺旋弹簧34将控制构件24偏置进入关闭位置。这样的调节器通常被认为是“失误关闭”调节器。“失误打开”调节器类似于“失误关闭”调节器；然而，基于隔膜的故障，弹簧偏置控制构件至打开，而不是关闭。
现在看图2，保持器31被更详细地示出。保持器31被通过多个紧固件35固定在控制构件24的底部。密封元件28设置在保持器31的上表面37和盖法兰39之间，其从控制构件24径向向外延伸。保持器31的底面33包括邻近控制构件24的纵向轴线A的第一部33a，该第一部33a垂直于控制构件24的纵向轴线A延伸一距离，和朝向密封元件28径向向外倾斜的第二部33b。通常来说，第二部33b与纵向轴线A夹角为约30度。平衡腔41可在需要平衡阀的某些情况下延伸通过保持器31。当平衡腔41延伸通过该保持器，第一部33a可从平衡腔41的边缘向外延伸。平衡腔41是具有纵向轴线的圆柱形开口，该纵向轴线与控制构件24的纵向轴线A一致。换句话说，保持器31具有与纵向轴线A相一致的纵向轴线。
通常，为特定操作的阀的尺寸是确定的，从而控制构件24将通常在大部分的操作时间中，操作在控制构件24行程的中部的80％。通过在该中部的80％中操作，座环26和密封元件28之间的流动是可预知的并且平滑的。然而，在适当的阀尺寸不能得到的一些情形中，可以应用比最适宜的尺寸大的阀。在这种情况，控制构件24以及因此密封元件28可在大多数的时间中相对地接近座环26进行操作，例如，在与该座环26最接近的该控制构件24的20％行程中，由于形成限定的流动区域，这能在密封元件28和座环26之间引起相对高的变动的流动速率。这些高流动速率可损害相对软的密封元件28，这会影响控制构件24的关闭能力。
发明内容
流动路径速率调节器允许控制阀的控制构件非常接近座环地操作，同时降低或消除受限的流体区域，其结果是极大地降低密封元件和座阀之间的变动的流动速率。因此，相对软的原料制成的密封元件可被使用而无需害怕被损坏。
附图说明
图1是一种通常的控制阀的横截面视图；
图2是图1中通常的控制阀的控制构件和阀座部分的横截面视图；以及
图3是控制构件和阀座部分的横视图，该视图包括依据本发明的教导构造的流动路径速率调节器。
具体实施方式
现在来参见图3，其示出了依据本发明教导而构造的密封元件组件111。密封元件组件111可被插入已知的控制阀中，如图1中的控制阀10。当密封元件组件111已插入已知的控制阀中，一超尺寸阀可被用于特定操作而不会产生有害的受限流动区域和可破坏密封元件128的较高波动的流动速率。
具有体部的保持器131通过多个紧固器135固定在控制构件124的底部。在一些实施例中，其它将保持器131固定到控制构件124上的方法也可被使用，例如，抵触接触、焊接、粘结或其它固定元件。密封元件128被设置在盖法兰139和保持器131的上表面137之间，其从控制构件124径向地向外延伸。保持器131的底面133包括近似控制构件124的纵向轴线A的第一部133a，该第一部133a平行于控制构件124的纵向轴线A延伸一距离，以及径向地向上倾斜的第二部133b，该第二部133b从第一部133a朝向密封元件128。通常来说，第二部133b与纵向轴线A夹角大于60度。换句话说，在纵向轴线A和该第二部的低表面之间形成的角度Z大于60度，优选地大于60度但小于90度，更优选地在70度到80度之间。这些范围的角度优化了速率波动的平滑，并且从而减少对密封元件128的损害。
平衡腔141可在需要平衡阀的某些情况下延伸通过保持器131。当平衡腔141延伸通过保持器，第一部133a可平行于平衡腔141的边缘143延伸，第一部133a形成纵向向外延伸、远离控制构件124的塞外延(plug extension)145。在一些实施例中，塞外延的形状可基本上为圆柱形。平衡腔141是具有与控制构件124的纵向轴线A一致的纵向轴线的圆柱形开口。换句话说，保持器131具有与纵向轴线A相一致的纵向轴线。
第二表面133b可远离第一表面133a朝向密封元件128延伸，在一位置L与密封元件128接触。当控制构件124在关闭位置时，位置L和阀座126的内表面151之间分开一距离D。在一些实施例中，距离D可为第二表面133b长度的约10％。通过将位置L和阀座126的一内表面151之间分开一距离D，当密封元件128非常接近阀座126时，流动加速被降低。结果是，随着控制构件124向关闭位置移动，流动速率具有降低的波动(即，是平滑的)，这降低阀座126和密封元件128的磨损。
按照前面所述，本发明公开内容的描述应当理解为仅仅提供根据本发明的一些实施例，并且因此没有脱离本发明的宗旨的变型，将包含在本发明的范围内。

Claims (10)

1.一种用于控制阀的控制构件组件，所述控制构件组件包括： 控制构件；保持器，其被固定至所述控制构件的一端，所述保持器具有主体部，所述主体部具有纵向轴线、顶面和底面，所述底面具有仅与所述纵向轴线平行地延伸的第一部和以一恒定的夹角远离所述第一部延伸的第二部，所述第一部远离所述主体部纵向地向外延伸，并且相对于所述纵向轴线，所述恒定的夹角为大于60度且小于90度；密封元件，其被设置在所述保持器的所述顶面和所述控制构件之间；阀座；以及平衡腔，所述平衡腔延伸穿过所述主体部，其中，所述第二部自所述第一部以所述恒定的夹角径向向上延伸至所述密封元件，在第一位置与所述密封元件接触，并且当所述控制构件在关闭位置时，所述第二部和所述阀座的内表面相互间隔一距离。
2.如权利要求1所述的控制构件组件，其中所述距离为所述第二部的长度的大约10%。
3.如权利要求1所述的控制构件组件，其中所述第二部与所述纵向轴线的夹角为大于70度且小于80度。
4.如权利要求1所述的控制构件组件，其中所述第一部构成塞外延。
5.如权利要求4所述的控制构件组件，其中所述塞外延的形状为圆柱形。
6.一种控制阀，包括：阀体，其具有流动路径和喉部；控制构件，其被设置在所述阀体中；阀座，其被设置在所述阀体中并邻近所述喉部；保持器，其被附接至所述控制构件的一端，所述保持器具有主体部，所述主体部具有纵向轴线、顶面和底面，所述底面具有仅与所述纵向轴线平行地延伸的第一部和以一恒定的夹角远离所述第一部延伸的第二部，所述第一部远离所述主体部纵向地向外延伸，并且相对于所述纵向轴线，所述恒定的夹角为大于60度且小于90度；密封元件，其被设置在所述保持器的所述顶面和所述控制构件之间；以及平衡腔，所述平衡腔延伸穿过所述主体部，其中，所述控制构件在所述阀体中纵向可移动以使所述密封元件接触位于关闭位置的所述阀座，以避免液体流过所述喉部，并且其中，所述第二部自所述第一部以所述恒定的夹角径向向上延伸至所述密封元件，在第一位置与所述密封元件接触，并且当所述控制构件在关闭位置时，所述第二部和所述阀座的内表面相互分开一距离。
7.如权利要求6所述的控制阀，其中所述距离为所述第二部的长度的大约10%。
8.如权利要求6所述的控制阀，其中所述第二部与所述纵向轴线的夹角为大于70度且小于80度。
9.如权利要求6所述的控制阀，其中所述第一部构成塞外延。
10.如权利要求9所述的控制阀，其中所述塞外延的形状为圆柱形。
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CA2945041A1 (en) 2015-10-15
RU2016143142A3 (zh) 2018-11-16
JP6721569B2 (ja) 2020-07-15
WO2015157352A1 (en) 2015-10-15
EP3129685B1 (en) 2019-08-07
RU2016143142A (ru) 2018-05-08
AU2015243888B2 (en) 2019-12-05
AU2015243888A1 (en) 2016-10-27
US9470337B2 (en) 2016-10-18
US20150285402A1 (en) 2015-10-08
AR099987A1 (es) 2016-08-31
CA2945041C (en) 2022-07-19
JP2017510775A (ja) 2017-04-13
CN105042095A (zh) 2015-11-11
EP3129685A1 (en) 2017-02-15

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