CN208885985U - 用于过程控制阀的调节驱动装置 - Google Patents

用于过程控制阀的调节驱动装置 Download PDF

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CN208885985U
CN208885985U CN201821058679.XU CN201821058679U CN208885985U CN 208885985 U CN208885985 U CN 208885985U CN 201821058679 U CN201821058679 U CN 201821058679U CN 208885985 U CN208885985 U CN 208885985U
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driving device
diaphragm
adjusting driving
connector
shell
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J·寇因克
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Samson AG
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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
    • 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
    • G—PHYSICS
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    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • 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
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • 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
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    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • F16K31/165—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
    • 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
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    • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
    • G—PHYSICS
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    • G05D16/04—Control of fluid pressure without auxiliary power
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    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
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    • G05D16/0636—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the loading device of the membrane, e.g. spring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0655—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane
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    • G05—CONTROLLING; REGULATING
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    • G05D16/0663—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using a spring-loaded membrane with a spring-loaded slideable obturator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
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    • G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
    • G05D16/0683—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane
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    • G05—CONTROLLING; REGULATING
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    • G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
    • G05D16/0683—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane
    • G05D16/0691—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane characterised by the loading mechanisms of the membrane
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/107—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with a spring-loaded piston in combination with a spring-loaded slideable obturator that move together over range of motion during normal operation
    • 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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    • Y10T137/7904—Reciprocating valves
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    • 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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    • 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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  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Driven Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

本实用新型涉及一种用于过程控制阀的调节驱动装置。其包括壳体，壳体包括两个壳体部和在壳体部之间密封安装的可往复运动的隔膜工作机构，该隔膜工作机构一方面与壳体一起构成能承受压力的工作腔且另一方面承受至少一个复位弹簧的作用，从而在无压状态中隔膜工作机构借助复位弹簧的弹簧偏置力被置入预定位置，该隔膜工作机构要与过程控制阀的同阀体(16)相连的阀杆连接，设有连接机构，该连接机构在两侧具有位于该隔膜工作机构的往复运动方向上的连接件，连接件与该阀杆上的接合件如此协调匹配，即该阀杆与该隔膜工作机构的连接通过单侧安装实现，阀杆可选择地要接合至该连接机构的每个连接件。

Description

用于过程控制阀的调节驱动装置
技术领域
本实用新型涉及用于过程控制阀的调节驱动装置，其中该调节驱动装置包括壳体，该壳体具有两个半壳和在所述半壳之间密封安装的且可往复运动的隔膜工作机构，隔膜工作机构一方面与该壳体一起形成可承受压力的工作腔，另一方面被至少一个复位弹簧施加作用，使得在无压状态中该隔膜工作机构借助复位弹簧的弹簧偏置力被置入一个预定位置，其中该隔膜工作机构要能与过程控制阀的同阀体相连的阀杆连接。
背景技术
DE4428990Al示出一种用于调节件的气压调节驱动装置，其具有驱动装置壳体和在其中活动的驱动部件，从驱动装置壳体伸出的且随驱动部件可运动的用于操作调节件的驱动件被固定在驱动部件上，驱动部件将驱动装置壳体分为压力腔和带有进风孔的且装有对驱动部件施力的复位件的复位腔，还具有用于位置控制器的固定接口，控制进风流道和通入转送腔的排风流道从该固定接口延伸出，其中该驱动装置壳体可如此颠倒安装，在第一安装位置上该压力腔与固定接口相邻，在第二安装位置上该复位腔与固定接口相邻，并且一个通风道穿过驱动件，该通风道在一端具有相对于驱动部件的远离固定接口的一侧敞开至那里的腔室的开口，在另一端具有到达转送腔的开口，并且在第一安装位置上该通风道朝向转送腔敞开且控制进风流道直接通入压力腔，最后，在第二安装位置上该进风孔连通至转送腔和位置控制器的排风孔，其中在驱动件上安装有活塞件，其通过滑环密封封闭该转送腔。在该调节驱动装置中，花费高的结构构造是不利的，改装是相应麻烦的。
实用新型内容
因此，本实用新型基于如下任务，提供一种具有紧凑简化结构的调节驱动装置，其可以如此安装，阀的安全位置或是无压打开的阀位置，或是无压关闭的阀位置，在此可以仅需几步地实现阀安全位置更换。
本实用新型涉及一种用于过程控制阀的调节驱动装置，该调节驱动装置包括壳体，该壳体包括两个壳体部和在所述壳体部之间密封安装的能够往复运动的隔膜工作机构，该隔膜工作机构一方面与所述壳体一起构成能承受压力的工作腔且另一方面承受至少一个复位弹簧的作用，从而在无压状态中所述隔膜工作机构借助所述复位弹簧的弹簧偏置力被置入预定位置，其中所述隔膜工作机构要与所述过程控制阀的同阀体相连的阀杆连接。
为此，本实用新型的调节驱动装置的特点是具有连接机构，其在两侧具有位于隔膜工作机构的往复运动方向上的连接件，连接件如此与阀杆上的接合件协调匹配，即，阀杆与隔膜工作机构的连接通过单侧安装来进行，其中该阀杆可选择地被连接在连接机构的每个连接件上。
通过这种方式，阀杆可以直接通过接合机构与该连接件相连，这保证了更紧凑的构型和简单快速的安装。
另外，可以设有位移测量系统，其具有对应于连接机构的接合件并且可以与连接机构的两个连接件相连，即能可选择地与其中一个或另一个连接件相连。
通过这种方式，位移测量系统可以利用尚未被阀杆用到的连接件。这有如下优点，位移测量系统以简单方式能被集成到驱动装置中。
这可以根据期望的无压位置总是在该连接机构的另一个接合处进行，并且因单侧安装可能性而也能以简单方式反过来。
因此，位移测量系统的活动部尤其可以配备有对应于该连接件的接合件。
尤其通过如此将连接机构布置在调节驱动装置本身中，可以提供具有缩短的轭架的紧凑的气压阀单元，做法是该位移测量系统也被直接集成在调节驱动装置上。阀杆在调节驱动装置中直接连接至连接系统，在此省掉调节驱动装置和阀杆之间的连接，使得过程控制阀的轭架可被保持得比现有技术短，这也有助于所述布置结构的紧凑性。
根据另一个有利设计，本实用新型的调节驱动装置的特点是，该连接机构的用于可选择地固定阀杆的接合件或者位移测量系统的接合件的对置的连接件具有相似的设计结构。
此外，该连接机构可以与固定法兰同心地布置，固定法兰提供了经壳体部至隔膜的通路并且调节驱动装置的壳体安装在其上。因为接合连接与对置的固定法兰同心地构成，故过程控制阀可以顺利地从无压打开的阀改装至无压关闭的阀。
根据另一个有利设计，本实用新型的调节驱动装置的特点是如此设计对置的固定法兰，即，用于固定位移测量系统或是过程控制阀的轭架，这也简化了所述改装。
根据另一个有利设计，本实用新型的调节驱动装置的特点是，该调节驱动装置的隔膜工作机构以及隔膜盘被固定在所述连接机构的连接件之间，这导致该阀杆被可靠地居中连接至隔膜工作机构。
根据另一个有利设计，本实用新型的调节驱动装置的特点是，该连接机构的第一连接件包括第一衬套，第一衬套位于该隔膜的一侧且具有内螺纹，内螺纹在朝向隔膜的一侧被加入，且该连接机构的第二连接件包括第二衬套，第二衬套通过隔膜中的孔以螺纹销被拧入第一连接件的内螺纹中，其中，隔膜的两侧尤其借助密封圈被流体隔绝。
该连接件可以在远离隔膜的一端具有用于拧紧阀杆或位移测量系统的内螺纹。
或者，可将一个连续衬套装入隔膜盘中，其中在隔膜盘过渡处所需的气密性例如通过因拧入阀杆接合件而被压缩的密封来保证。
在本实用新型的调节驱动装置中，位移测量系统的传感器壳体最好在调节驱动装置壳体的远离轭架的外侧安置在固定法兰上，而在另一个优选设计中，阀杆在壳体的朝向轭架的内侧中的固定法兰处被引导，其中该固定法兰是可更换的。此时阀杆相对于壳体被密封。
附图说明
本实用新型的其它优点、特征和可能应用来自以结合附图所示的实施例的以下说明。
在说明书、权利要求书和附图中采用了在如下所述的附图标记列表中所用的术语和对应附图标记，附图示出：
图1是无压打开的过程控制阀的剖视图；
图2是根据图1的无压打开的过程控制阀的放大剖视图；
图3是无压关闭的过程控制阀的剖视图；和
图4是根据图3的无压关闭的过程控制阀的放大剖视图。
附图标记列表
2 过程控制阀；
4 调节驱动装置；
6 轭架；
8 阀壳体；
10 进口；
12 出口；
14 阀开口；
16 阀体；
18 阀杆；
20 隔膜工作机构；
22 壳体；
24 半壳；
26 半壳；
28 工作腔；
30 空间；
32 复位弹簧；
34 隔膜；
36 隔膜盘；
38 固定法兰；
40 固定法兰；
41、41' 堵塞；
42 焊接；
43、43' 螺栓；
44 焊接；
48 位移测量系统；
50 活动部；
52 弹簧；
54 传感器壳体；
56 芯件；
58 霍尔探头；
60 管接头；
62 管接头；
64 连接机构；
66 连接件；
68 连接件；
70 接合件；
72 接合件；
74 内螺纹；
76 轭架；
78 螺纹销；
80 密封圈。
具体实施方式
附图示出了气压/流体单向作用的过程控制阀2，尤其是用于这种过程控制阀2的调节驱动装置4。
如图所示的过程控制阀2包括调节驱动装置4和通过轭架6与调节驱动装置4相连的阀壳体8，阀壳体具有进口10和出口12以及阀开口14，阀开口将通过阀体16来关闭或打开，阀体由与阀体16和调节驱动装置4相连的阀杆18来操作。为此，阀杆18直接连接至调节驱动装置4的隔膜工作机构20。
如图所示的调节驱动装置4包括由两个半壳24、26构成的壳体22。朝向壳体22内部被密封的且可往复运动的隔膜工作机构20一方面与壳体22一起形成可承受压力的工作腔28和用于至少一个与隔膜工作机构20的施压反作用的复位弹簧32的空间30。工作机构20包括隔膜34和隔膜盘36，复位弹簧32支承在隔膜盘上。在壳体22的半壳24、 26上通过在固定法兰38处的焊接42和在固定法兰40处的焊接44安装有相互对置的且居中设置在半壳24、26上的固定法兰38、40。在固定法兰38上设有多个堵塞 (Blindstopfen)41、41"，其中当固定法兰38如图1所示位于调节驱动装置4的外侧时，相应的孔不具功能。固定法兰40通过销43、43"被固定在轭架6上，其中所述销43、43" 插入固定法兰40内的孔中，如图1所示。
此外在调节驱动装置4上设有位移测量系统48，其根据图2由与隔膜工作机构20相连的活动部50、与活动部50相连的弹簧52、与弹簧52相连的可纵向移动地安装在传感器壳体54里的且与弹簧52相反被预紧的芯件56和与芯件56配合的霍尔探头58组成。位移测量系统48也可以是感应式或电容式测量系统等。利用位移测量系统48，可以测量工作机构20的运动和进而阀体16的运动。位移测量系统48的传感器壳体54根据图1 和图2在阀壳体8的远离轭架6的外侧设置在固定法兰38上。
根据图1和图2，隔膜工作机构20在无压状态下借助复位弹簧32的弹簧偏置力被置于一个位置，该位置是过程控制阀2的无压打开位置。为此，根据图1在上方位于调节驱动装置4内的工作腔28通过管接头60被排气，根据图1在下方位于调节驱动装置4内的复位弹簧32所用空间30通过管接头62保持无压。
根据图3和图4，在无压状态中隔膜工作机构20借助复位弹簧32的弹簧偏置力被置入过程控制阀2的无压关闭位置。为此，通过管接头60使根据图3在调节驱动装置4中位于下方的工作腔28处于压力下，通过管接头62使根据图3在调节驱动装置4中处于下方的复位弹簧32所用空间30保持无压力或者说被排气。
为了将阀杆18和位移测量系统48连接至调节驱动装置4，设有带有连接件66、68的连接机构64，这些连接件带有相互对应的接合件70、72用于将连接机构64一方面连接至阀杆18且另一方面连接至位移测量系统48的活动部50，其中，阀杆18或者位移测量系统48可选择地通过各自的接合件70、72被连接在连接机构64上。隔膜工作机构20 的隔膜34和隔膜工作机构20的隔膜盘36被固定在连接机构64的连接件66、68之间。
在根据图2和图4的调节驱动装置4中，连接机构64的第一连接件68包括第一衬套，第一衬套位于隔膜34的一侧且带有内螺纹74，内螺纹在朝向隔膜34的一侧被加入。连接机构64的第二连接件66包括第二衬套，第二衬套通过隔膜34内的孔76以螺纹销78 被拧入第一连接件68的内螺纹74中，其中，隔膜34的两侧尤其借助密封圈80相对于隔膜34被流体隔绝。
根据图1和图2，位移测量系统48的活动部50与设于工作腔28内的连接件66螺纹连接，阀杆18与设于复位弹簧32用空间30内的连接件68螺纹连接。根据图3和图4，位移测量系统48的活动部50与设于复位弹簧32所用空间30内的连接件68螺纹连接，阀杆18 与设于工作腔28内的连接件66螺纹连接。
用于接合至连接机构64以便可选择地固定阀杆8或位移测量系统48的接合件70、72相对于彼此对置的固定法兰38、40是对称布置的，所述固定法兰通过焊接42、44 被固定在壳体22的半壳24、26上。对置的固定法兰38、40被设计成或是要固定该位移测量系统48，或是要固定该过程控制阀2的轭架6。
在所述过程控制阀2中，为了改变单向作用的调节驱动装置4的从图1的位置起从无压打开位置到无压关闭位置的安全位置而需要如下步骤：首先，使位移测量系统48 脱离固定法兰38。随后从连接件66中拧出位移测量系统48的活动部50。接着，其中安装有阀杆18的固定法兰40通过松开螺栓43、43'被拧开，由此可以取出调节驱动装置4 且阀杆18可从连接件68中被拧出。接着，使调节驱动装置4转动180°，使得固定法兰 40在上而固定法兰38在下地位于调节驱动装置4内。重新安装以阀杆18在调节驱动装置4的另一侧通过固定法兰38被安装在连接件66上开始。接着，位移测量系统48被安装在固定法兰40上，且位移测量系统的活动部50被拧入连接件68中。接着，被阀杆18 穿过的固定法兰38被拧上，随后所述改装结束。

Claims (11)

1.一种用于过程控制阀(2)的调节驱动装置(4)，该调节驱动装置包括壳体(22)，该壳体包括两个壳体部(24,26)和在所述壳体部(24,26)之间密封安装的能够往复运动的隔膜工作机构(20)，该隔膜工作机构一方面与所述壳体(22)一起构成能承受压力的工作腔(28)且另一方面承受至少一个复位弹簧(32)的作用，从而在无压状态中所述隔膜工作机构(20)借助所述复位弹簧(32)的弹簧偏置力被置入预定位置，其中所述隔膜工作机构(20)要与所述过程控制阀(2)的同阀体(16)相连的阀杆(18)连接，其特征是，设有连接机构(64)，该连接机构在两侧具有位于所述隔膜工作机构(20)的往复运动方向上的连接件(66,68)，所述连接件与所述阀杆(18)上的接合件(70)如此协调匹配，即所述阀杆(18)与所述隔膜工作机构(20)的连接通过单侧安装实现，其中所述阀杆(18)要以可选择的方式接合至所述连接机构(64)的每个连接件(66,68)。
2.根据权利要求1所述的调节驱动装置(4)，其特征是，在所述调节驱动装置(4)上设置有位移测量系统(48)，且所述位移测量系统(48)具有接合件(72)，所述接合件要通过单侧安装被接合至所述连接机构(64)的每个所述连接件(66,68)。
3.根据权利要求2所述的调节驱动装置，其特征是，在一个连接件上连接有所述位移测量系统(48)的活动件(50)。
4.根据权利要求2所述的调节驱动装置，其特征是，所述连接件(66,68)与对应的接合件(70,72)相似地构成以便以可选择的方式将所述阀杆(18)或所述位移测量系统(48)固定在所述连接机构(64)上。
5.根据权利要求1所述的调节驱动装置，其特征是，所述连接机构(64)与彼此对置的固定法兰(38,40)同心设置，所述调节驱动装置(4)的所述壳体(22)安装在所述固定法兰上。
6.根据权利要求2所述的调节驱动装置(4)，其特征是，所述对置的固定法兰(38,40)被设计成用于固定所述位移测量系统(48)或所述过程控制阀(2)的轭架(6)。
7.根据权利要求1所述的调节驱动装置(4)，其特征是，所述连接机构(64)的第一连接件(68)包括第一衬套，该第一衬套位于所述隔膜(34)的一侧并具有内螺纹(74)，该内螺纹在朝向所述隔膜(34)的一侧被加入，且所述连接机构(64)的第二连接件(66)包括第二衬套，该第二衬套通过所述隔膜(34)内的一个孔(76)以螺纹销(78)被拧入所述第一连接件(68)的所述内螺纹(74)中。
8.根据权利要求1所述的调节驱动装置(4)，其特征是，所述调节驱动装置(4)的隔膜工作机构(20)以及隔膜盘(36)被固定在所述连接机构(64)的连接件(66,68)之间。
9.根据权利要求6所述的调节驱动装置(4)，其特征是，所述位移测量系统(48)的传感器壳体(54)设置在所述调节驱动装置(4)的所述壳体(22)的远离所述轭架(6)的外侧上的所述固定法兰(38，40)处。
10.根据权利要求5所述的调节驱动装置(4)，其特征是，所述阀杆(18)在所述调节驱动装置(4)的所述壳体(22)的朝向轭架(6)的内侧中的所述固定法兰(40；38)处被引导。
11.根据权利要求7所述的调节驱动装置(4)，其特征是，所述隔膜(34)的两侧借助密封圈(80)相对于所述隔膜(34)被流体隔绝。
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EP3425248A1 (de) 2019-01-09
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US10488872B2 (en) 2019-11-26
DE202017104079U1 (de) 2017-08-21

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