CN106989198B - 具有集成的压力释放的控制调节器膈膜组件 - Google Patents

具有集成的压力释放的控制调节器膈膜组件 Download PDF

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CN106989198B
CN106989198B CN201710046196.1A CN201710046196A CN106989198B CN 106989198 B CN106989198 B CN 106989198B CN 201710046196 A CN201710046196 A CN 201710046196A CN 106989198 B CN106989198 B CN 106989198B
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T·F·杰克逊
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Fisher Controls International LLC
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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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type
    • F16K17/1626—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type with additional cutting means
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms
    • 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
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/1606—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the reverse-buckling-type
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
    • F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T137/1699—Means for holding entire disc after rupture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T137/1707—Disc burst after destruction of additional element
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    • Y10T137/1714—Direct pressure causes disc to burst
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T137/1722—Two-way rupture disc
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T137/1729—Dome shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T137/1737—Reverse buckling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1752—Integral disc assembly

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Driven Valves (AREA)
  • Safety Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

一种控制调节器，其包括具有集成的压力释放机构的膈膜组件。该膈膜组件包括具有局部弱化区域的膈膜和具有与该局部弱化区域对准的开口的膈膜板。

Description

具有集成的压力释放的控制调节器膈膜组件
技术领域
概括地说，本公开内容涉及用于流体过程***的控制调节器，并且更具体而言涉及包括具有集成的压力释放机构的膈膜组件的控制调节器。
背景技术
过程工厂(诸如炼油厂、化工厂或制浆和造纸厂)由连接在一起的多个过程控制回路组成，以便生产各种产品。这些过程控制回路中的每一个回路被设计为将诸如压力、流量、电平或温度的一些过程变量保持在所需的操作范围内，以确保最终产品的质量。***内的控制阀或控制调节器操纵流动的流体(诸如气体、蒸汽、水或化学化合物)，以补偿负载扰动并且尽可能接近期望的控制或设定点地保持经调节的过程变量。
各种控制阀构型可以适用于某些应用。例如，当具有狭窄的控制范围的快速打开阀是适当的时，可以使用诸如蝶阀的旋转控制阀。可替代地，当需要在大控制范围上的精确控制时，可以使用滑动杆控制阀。在任何构型中，这种控制阀通常被耦接到诸如致动器的控制设备，其响应于控制信号控制控制阀的精确的打开量。
在一些***中，特别是在气动控制的流体过程***中，用于任何给定的流体过程控制设备的致动器可以包括隔膜致动器。典型的膈膜致动器包括容纳弹簧偏置隔膜组件的壳体。隔膜组件经由杆或其它致动器杆操作地耦接到阀塞或其它控制构件，以控制流体过程控制设备的打开量。
一些组件包括膈膜和一个或多个膈膜板。膈膜包括柔性盘状构件。一个或多个板被设置成邻近膈膜并且适于由设置在壳体内的一个或多个弹簧接合。此外，板提供与杆的刚性机械连接。弹簧用于将膈膜组件偏置到预定位置，使得致动器可以将控制设备偏置到打开或关闭构型。在一些设备中，膈膜板包括碟形部分，用标准蜗轮软管夹紧件抵靠该碟形部分来密封膈膜。在其它设备中，膈膜根本不固定到板上。然而，如所提及的那样，一个或多个膈膜板刚性地固定至致动器的杆。这种固定通常通过螺纹附件来实现。例如，在一种形式中，杆包括穿过一个或多个板中的中心孔设置的螺纹端部部分。然后螺母被螺纹连接到杆的螺纹端部部分上，以便将杆附接到板上。
当致动器承受过大的流体压力时，例如当供应调节器失效时，致动器部件发生失效，导致适当的过程控制的缺失和/或高压流体可能被喷射到环境中的危险情况。为了防止灾难性的失效，一些高压***包括外部压力释放阀或破裂盘，以在压力超过最大设定点时释放压力。然而，这些外部压力释放阀和/或破裂盘使***增加了额外的成本，并且由于额外的成本的缘故而通常不被使用。
附图说明
图1是根据本发明的原理构造的控制调节器的侧视图；
图2是通过图1的线II-II截取的图1的致动器的截面侧视图；
图3是图2的膈膜组件的分解透视图；
图4是图3的膈膜组件的织物层的一个替代实施例的透视图；以及
图5是图3的膈膜组件的膈膜板的一个替代实施例的透视图。
具体实施方式
现在参考图1例示了根据本发明的原理构造的致动器10。该致动器被连接到流体过程控制设备，诸如控制调节器12。控制调节器12可以包括阀主体13，其限定流体入口14、流体出口16、喉部18和流体流动路径20。流体流动路径20被设置在流体入口14与流体出口16之间。控制调节器12可以适于设置在流体过程控制***内，流体过程控制***包括例如过程工厂(例如炼油厂、或化学厂、制浆厂或造纸厂)。控制调节器12根据一个或多个操作参数来控制通过该***的流体的流量。
致动器10包括连接到阀塞24的阀杆22，阀塞24在控制调节器12的喉部18内滑动。在操作期间，致动器12相对于设置在控制调节器12的喉部18内的阀座19移动阀杆22，并因此移动阀塞24。如对于任何给定的过程应用所期望的那样，阀塞24相对于阀座19的位置控制行进通过流体流动路径20的流体的量。
现在参考图2例示了致动器10的一个实施例。致动器10包括壳体26、膈膜组件28和多个弹簧30。壳体26限定内部腔体27。膈膜组件28被设置在壳体26内并将内部腔体27分成上部腔体27a和下部腔体27b。膈膜组件28在上部和下部腔体27a、27b之间提供液密密封。弹簧30朝向阀座19偏置隔膜组件28，即相对于图2中所例示的致动器10的方向向下。该向下偏置将阀塞24(在图1中示出)朝向阀座19压紧，以关闭通过流动路径20的流体的流动，从而限定偏置闭合致动器10。在其它控制调节器中，弹簧偏置可以被反转，形成偏置打开致动器。无论如何，流体压力可以被引入壳体26的下部腔体27b中，以克服弹簧30的偏置向上驱动膈膜组件28，从而提升阀塞24远离阀座19，以打开控制调节器12的流动路径20。
致动器10的壳体26可以包括上壳体部件32和下壳体部件34。每个壳体部件32、34可以包括板部分32a、34a、壁32b、34b以及法兰32c、34c。在一个实施例中，板部分32a、34a可以是大致圆形的。因此，壁32b、34b以及法兰32c、34c围绕板部32a、34a周向地延伸。径向的法兰32c、34c限定了多个孔36，多个孔36用于容纳紧固件38，以将上壳体部件32固定到下壳体部件34，如图2所示。在所公开的实施例中，每个紧固件38包括与六角螺栓螺纹地接合的六角螺母。在其它实施例中，可以使用其它附接方式，例如铆钉、焊接、粘合剂或任何其它适当的将上壳体部件32附接到下壳体部件的方式。
上壳体部件32可以限定流体端口40并且下壳体部件34可以限定流体端口42。流体端口40、42适于耦接到相应的流体供应管线，例如气动供应管线，相应的流体供应管线用于改变在壳体26的上部腔体27a、下部腔体27b内的压力。此外，下壳体部件34限定用于容纳杆22的开口44。在其它实施例中，流体端口40、42中的一个或两个可以被移除，以使得上部腔体27a和下部腔体28b中的一个或两个可以被关闭或密封。
阀杆22将隔膜组件28操作地耦接到阀塞24。阀杆22通常包括具有主体部分22a、螺纹端部部分22b和肩部22c的细长杆。主体部分22a包括大于螺纹端部部分22b的直径的直径。肩部22c被设置在主体部分22a和螺纹端部部分22b之间。
阀杆22的螺纹端部部分22b可以利用螺母48耦接到隔膜组件28。螺母48可以利用固紧螺母50固定到阀杆22上。固紧螺母50可以被螺纹连接到阀杆22的螺纹端部部分22b上，并且与螺母48接合，以防止螺母48松动并从阀杆22退回。膈膜组件28还可以向螺母48施加力，从而防止螺母48松动并从阀杆22退回。
在图2所例示的实施例中，膈膜组件28可以包括一对隔膜板52、54以及膈膜56。膈膜56可以由柔性材料构成，其可以如下文进一步讨论的那样包括织物层和两个聚合物层。在其它实施例中，膈膜56可以包括复合材料和/或能够提供液密密封的任何其它适当的材料。在该实施例中，膈膜56包括外部径向部分56a和内部径向部分56b。外部径向部分56a限定用于接收紧固件38的多个孔58，紧固件38将上壳体部件32和下壳体部件34的径向法兰部分32c、34c固定在一起。这样构造的话，径向法兰部分32c、34c将膈膜56的外部径向部分56a压缩。膈膜板52、54的中心孔71适于容纳阀杆22，以使阀杆22能够连接到膈膜组件28。
虽然到目前为止，致动器10已经被公开为包括将杆22连接到膈膜组件28的螺母48，但是替代实施例可以不需要螺母。例如，在一个替代实施例中，限定在上膈膜板52中的中心孔71可以包括内螺纹。中心孔71的内螺纹可以被设定尺寸并且构造成用于与杆22的螺纹端部部分22b螺纹地接合。这样构造的话，阀杆22的螺纹端部部分22b将被设置成与上膈膜板52的内螺纹直接螺纹地接合。将阀杆22的螺纹端部部分22b紧固到上膈膜板52将会把膈膜板的内部径向部分52b、54b拉到一起，例如如图2中所描绘的那样。在这样的实施例中，应当理解，固紧螺母50可以用于辅助将阀杆22和上膈膜板52固紧在一起，然而，通过使膈膜板52、54变形和压缩而内在地产生的力将在阀杆22的螺纹端部部分22b与中心孔71之间产生足够的摩擦，以防止阀杆22从上膈膜板52松开。
现在转到图3，例示了膈膜组件28的一个实施例。膈膜组件28包括膈膜56和膈膜板54。膈膜组件包括压力释放机构80。隔膜56由三层构成：顶层56x、中间层56y和底层56z。顶层56x和底层56z由诸如橡胶的弹性体制成。中间层56y由织物制成。在其它实施例中，层56x、56y、56z可以由已知用于形成膈膜的其它材料制成。中间层56y包括开口82。类似地，膈膜板54包括开口84。压力释放机构80包括中间层56y中的开口82和膈膜板54中的开口84。在优选实施例中，膈膜层56x、56y、56z通过围绕织物层56y模制层弹性体层56x和56z而形成，以形成一体的膈膜56。
开口82、84在膈膜组件56上形成局部弱化的区域。当开口82、84彼此对准时，上层56x和下层56z的材料不由中间层56y中的材料支撑或增强。结果，当过压情况发生时，这些区域将首先失效(并且在设计的压力极限)。在一个实施例中，局部弱化的区域将在高于正常操作压力但低于主要部件失效压力的压力下失效。通过使用开口82和84的几何形状以及过压情况下的织物扰动的量，***可以设计成在期望的压力下失效。当局部弱化的区域失效时，致动器将减压，允许阀塞返回到弹簧失效(或失效保护)位置，该位置可以是被打开的或被关闭的。
在图3的实施例中，开口82、84被例示为圆形。然而，在其它实施例中，开口82、84可以实际上呈现任何形状，例如三角形、正方形、矩形、楔形、弧形、多边形等。另外，在一些实施例中，膈膜56可以包括某种对准特征90，诸如视线或模制特征(如切口或凹陷)，以辅助将中间层56y中的开口82与膈膜板54中的开口84对准。替代地，外壳中的不规则螺栓样式可以用于确保膈膜56的正确对准。
在其它实施例中，例如，如图4所示，多个开口82可以围绕中间层56y分布，从而使得至少一个开口82将(至少部分地)与隔膜板中的开口84对准。
在另外的实施例中，例如如图5所示，膈膜板54可以包括刺穿部件例如尖的突起部92，当达到最大压力时并且隔膜56被推入到开口84中足够远以接触穿刺部件时，刺穿部件将会刺穿底层56z和上层56x。
虽然图3的实施例例示了位于邻近隔膜56的底层56z的单个膈膜板54，但是其它实施例还可以包括具有类似的压力释放机构(例如开口)的第二隔膜板54，该压力释放机构与中间层56y中的开口82对准。在这样的实施例中可以消除弹性体层中的一层，使得膈膜56仅包括单个弹性体层56x和单个织物层56y。
本文公开的膈膜组件的任何实施例可以用于有利地提供集成的压力释放机构，以在过压情况下释放流体压力，从而防止对内部部件的损坏。
尽管本文根据本公开内容的教导描述了某些膈膜组件，但是本专利的覆盖范围不限于此。相反，虽然已经结合各种优选实施例示出和描述了本发明，但是显然的是，除了上面提到的那些之外，可以进行某些改变和修改。本专利覆盖了本公开内容的教导的所有实施例，其完全落入可允许的等同物的范围内。因此，意在保护本领域普通技术人员可能想到的所有变化和修改。

Claims (10)

1.一种用于控制调节器的膈膜组件，所述膈膜组件包括：
膈膜，所述膈膜包括弹性的上层、织物的中间层、弹性的下层，所述中间层包括开口；以及
膈膜板，所述膈膜板支撑所述膈膜，其中，
所述隔膜板包括与在所述隔膜的所述中间层中的开口对准的开口，从而使得所述上层和所述下层并不由所述中间层进行支撑或增强；并且
在所述隔膜的中间层中的所述开口和在所述隔膜板中的所述开口在所述隔膜组件上形成局部弱化区域，所述局部弱化区域形成压力释放机构，使得在过压情况发生时所述局部弱化区域首先失效。
2.根据权利要求1所述的膈膜组件，其特征在于，在所述中间层中的开口被所述上层和所述下层覆盖。
3.根据权利要求2所述的膈膜组件，其特征在于，在所述中间层中的开口是圆形的。
4.根据权利要求1所述的膈膜组件，其特征在于，所述局部弱化区域由所述中间层中的多个开口和多个在所述隔膜板中的对齐的开口形成。
5.根据权利要求1所述的膈膜组件，其中，所述隔膜包括对准标志。
6.根据权利要求5所述的膈膜组件，其特征在于，所述对准标志是可视标记。
7.根据权利要求1所述的膈膜组件，其特征在于，所述隔膜板中的所述开口是圆形的。
8.根据权利要求5所述的膈膜组件，还包括在所述膈膜板上的对准标志。
9.一种控制调节器，包括：
阀主体，所述阀主体形成通过流体通路连接的流体入口和流体出口；
阀塞，所述阀塞设置在所述阀主体内，所述阀塞与阀座配合以控制通过所述阀主体的流体的流量；
致动器，所述致动器耦接到所述阀主体，所述致动器包括通过阀杆操作地连接到所述阀塞的膈膜组件，所述膈膜组件包括支撑所述膈膜的膈膜板，其中，
所述膈膜组件包括隔膜，所述膈膜包括弹性的上层、织物的中间层、弹性的下层，所述中间层包括开口，
所述隔膜板包括与在所述隔膜的所述中间层中的开口对准的开口从而使得所述上层和所述下层并不由所述中间层进行支撑或增强，并且
在所述隔膜的中间层中的所述开口和在所述隔膜板中的所述开口在所述隔膜组件上形成局部弱化区域，所述局部弱化区域形成压力释放机构，使得在过压情况发生时所述局部弱化区域首先失效。
10.根据权利要求9所述的控制调节器，还包括位于所述膈膜上的对准标志和在所述膈膜板上的对准标志。
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