Interchangeable component for a process fitting arrangement and process fitting arrangement

Abstract

The invention describes an interchangeable component (10) for a process fitting arrangement, wherein a media-contacted region (12) of a plurality of process medium channels (14a-h) of the interchangeable component (10) is delimited in the respective course at least in some portions by a base body (100) and by at least one diaphragm (200), wherein a cover (300) fixes the at least one diaphragm (200) to the base body (100), wherein at least a portion of the process medium channels (14a-h) has in their course at least one valve segment (16a-h) with a stationary valve seat (118a-h) of the base body (100) and with a dynamically loadable diaphragm portion (220a-h) of the diaphragm (200), and wherein the dynamically loadable diaphragm portion (220a-h) of the respective valve segment (16a-h) is movable between an open position, in which a process medium flow through the associated process medium channel (14a-h) via the stationary valve seat (118a-h) of the base body (100) is enabled, and a closed position, in which the process medium flow is interrupted by abutment of the dynamically loadable diaphragm portion (220a-h) on the stationary valve seat (118a-h) of the base body (100).

Description

[0001] Interchangeable component for a process valve assembly and process valve assembly

[0002] The invention relates to advances in the field of process valve technology.

[0003] The problem underlying the invention is solved by an interchangeable component according to claim 1 and a process valve assembly according to a further claim. A first aspect of the description relates to an interchangeable component for a process valve assembly, wherein a media-wetted area of ​​a plurality of process medium channels of the interchangeable component is at least partially bounded along its respective course by a base body and by at least one diaphragm, wherein a cover secures the at least one diaphragm to the base body, wherein at least a portion of the process medium channels along their course has at least one valve segment with a fixed valve seat of the base body and with a dynamically loadable diaphragm section of the diaphragm, and wherein the dynamically loadable diaphragm section of the respective valve segment can be adjusted between an open position,in which a process medium flow is enabled through the associated process medium channel via the stationary valve seat of the base body, and a closed position in which the process medium flow is interrupted by the dynamically loadable diaphragm section bearing against the stationary valve seat of the base body.

[0004] The design, divided into a lid, membrane, and base body, simplifies the production of a complexly shaped, media-contacting area of ​​the replaceable component. Because the base body and membrane together define the process medium channel, manufacturing the replaceable component is simplified; that is, the shaping of the base body and the membrane for creating the process medium channels is decoupled from each other in terms of manufacturing and design. This, in turn, allows for the creation of freeform surfaces for guiding the process medium within the replaceable component, thereby reducing turbulence. This enables the use of the replaceable component in the fields of biotechnology and medical technology.

[0005] Furthermore, the proposed component enables a space-optimized design, such that, for example, a relatively flat, replaceable component can be manufactured.

[0006] This creates a kind of interchangeable valve block, which can be made compact through the sandwich construction, in which the diaphragm is clamped between the cover and the base body.

[0007] An advantageous example is characterized in that the lid comprises a plurality of recesses, each of which leads to the diaphragm section of the at least one diaphragm associated with one of the valve segments.

[0008] A compressor or pressure piece can be inserted through the recesses, which closes the respective valve segment by pressing a portion of the diaphragm section onto the valve seat. Nevertheless, the sealing effect to the outside is maintained because the diaphragm is fixed to the base body.

[0009] An advantageous example is characterized by the fact that the lid and the base body are rigidly fixed to each other in a plurality of spaced connection areas.

[0010] Advantageously, the force required for clamping the diaphragm can thus be distributed evenly throughout the diaphragm, thereby improving the seal to the outside. An advantageous example is characterized by the fact that at least one or the majority of the connection areas are arranged between adjacent valve segments.

[0011] The static connection areas are advantageously located near the dynamically loaded membrane sections, which improves external sealing because the distance between the sealing point and the connection area is reduced. Additionally, the replaceable component is smaller, as no extra space needs to be created for the connection areas. Instead, the existing gaps between the adjacent valve segments are utilized.

[0012] An advantageous example is characterized in that at least one media-contacting section of the membrane is surrounded by at least one tensioning section of the membrane, wherein the cover, which is supported on the base body in the connection areas, presses the at least one tensioning section of the membrane onto a counter-tensioning section of the base body with at least one pressure section.

[0013] This advantageously ensures the component is sealed to the outside.

[0014] An advantageous example is characterized by the fact that the majority of valve segments lie in an imaginary common valve plane.

[0015] Because the valve segments lie in the same imaginary plane, it is structurally simpler to arrange multiple valve actuators. This also results in material savings compared to complex valve blocks. Furthermore, the volume of the free, media-contacting interior can be reduced, which has a positive effect on the flow of the media being supplied.

[0016] An advantageous example is characterized by the fact that the majority of process medium channels, each having at least one of the valve segments, lead into a central process medium chamber, to which at least one further process medium channel is connected, which in particular extends at least partially perpendicular to the imaginary common valve plane.

[0017] Advantageously, the outlet can be supplied with different process media from the different process medium channels, depending on the position of the respective membrane section. For example, a funnel shape for the outlet or the central chamber can be achieved.

[0018] An advantageous example is characterized by the fact that a seating surface of the fixed valve seat of the respective valve segment is inclined away from the central process medium chamber.

[0019] This advantageously reduces the volume of the central process medium chamber, as the inclined valve seat can be positioned closer to it. Furthermore, it offers greater design flexibility regarding the arrangement of valve actuators, since the inclined valve seat creates an inclined actuating axis. Consequently, larger distances between the actuating axes are achieved along the axis of rotation towards the actuator, allowing for larger actuator dimensions or improved maintenance.

[0020] This inclination contributes to a reduction in the size of the central process medium chamber, which allows it to be quickly flushed out when changing the process medium.

[0021] An advantageous example is characterized by the fact that the lid has a projection facing towards the base body, which serves as a counter bearing for a central chamber section of the flexible membrane that at least partially delimits the central process medium chamber.

[0022] This has the advantage of reducing the overall volume of the central process medium chamber. Furthermore, it avoids dead volumes where residual process medium can unintentionally accumulate.

[0023] An advantageous example is characterized by the fact that the media-contacting area of ​​at least one of the segments of the process medium channel immediately adjoining the respective valve segment is bounded by the base body and by the at least one membrane.

[0024] This design advantageously allows the process medium channels to be configured to minimize turbulence in the process medium. The design-related deflection of the process medium can be reduced by this example. A second aspect of the description concerns a process valve arrangement comprising: the replaceable component, in particular according to the first aspect; a valve base with a connection device by means of which the replaceable component is detachably fixed to the valve base; and a plurality of valve actuators, which are rigidly attached to the valve base and which are configured to operate the replaceable component.

[0025] This advantageously creates the possibility of replacing the interchangeable component and reusing the valve base with the valve actuators attached to it for the operation of the interchangeable component.

[0026] An advantageous example is characterized in that the valve base comprises a plurality of compressors movably mounted in the valve base along an actuating axis, wherein the plurality of compressors can be actuated by a respective plurality of valve actuators, wherein a respective plurality of compressors, when moving into a first position, releases a movement of the dynamically loadable diaphragm section of the respective valve segment associated with the compressor into the open position, wherein in a second position the respective plurality of compressors forces the associated dynamically loadable diaphragm section into the closed position.

[0027] The additional inclusion of compressors makes it possible to reduce the tolerance chain between the valve actuator and the diaphragm section, thus eliminating the need for particularly precise positioning of each individual actuator. Furthermore, the use of different compressors for each actuator significantly reduces assembly effort.

[0028] Furthermore, the design of the interchangeable components is decoupled from the design of the drives. This makes it possible to use drives of different types and sizes. As a result, existing drive types can be used for the process valve arrangement.

[0029] An advantageous example is characterized by a spring element assigned to each compressor exerting a force on the compressor to push it in a specific direction, particularly towards the associated valve actuator. Advantageously, the spring element defines a rest position for the compressor. If the rest position is aligned with the valve actuator, the valve segments are in a normally open position. This relieves stress on the dynamically stressed diaphragm sections.

[0030] An advantageous example is characterized in that the majority of valve actuators comprise a mounting section facing the valve base, wherein the majority of mounting sections of the valve actuators are rigidly fixed between an actuator plate and the valve base.

[0031] Providing a common drive plate for the majority of valve actuators results in a simplified assembly of the process valve arrangement.

[0032] An advantageous example is characterized in that the connecting device comprises: a pressure plate, wherein the replaceable component is arranged between the pressure plate and the fitting base in the assembled state; and at least one manually operable clamping device which engages the fitting base and, in the assembled state of the replaceable component, engages with the pressure plate to clamp the replaceable component between the pressure plate and the fitting base.

[0033] Advantageously, the pressure plate and the clamping device allow for easy assembly and disassembly of the replaceable component.

[0034] The figures show:

[0035] Fig. 1 shows an interchangeable component for a process valve assembly in a perspective sectional view with a section along process medium channels;

[0036] Fig. 2 shows the interchangeable component in a further perspective view.

[0037] Sectional view with cut along connecting sections;

[0038] Fig. 3 shows the interchangeable component in a different perspective.

[0039] Sectional view with a cut perpendicular to the course of a process medium channel;

[0040] Fig. 4 the replaceable component in a perspective exploded view; Fig. 5 a process valve assembly in an assembled state in a perspective sectional view;

[0041] Fig. 6 shows the process valve arrangement in an assembled state;

[0042] Fig. 7 shows the process valve arrangement in a different assembly state;

[0043] Fig. 8 shows another example of the process valve arrangement in the assembled state in a sectional view;

[0044] Fig. 9 shows the example of Figure 8 in an assembled state; and

[0045] Fig. 10 shows the example of Figures 8 and 9 in the assembled state in a top view.

[0046] Figures 1 to 4 show an interchangeable component 10 for a process valve assembly in different sectional views. In this presentation of the figures, the suffixes a to h are repeatedly referenced. Depending on the context, these references relate either to a single element, for example a or h, or to the entire group of elements from a to h. It should be noted that mentioning the suffixes a to h implicitly includes all intermediate alphabetical elements. Furthermore, it is essential for understanding that the suffixes often denote similarly designed or functioning elements. However, it should be considered that not every suffix necessarily has a corresponding element in every figure.

[0047] A media-contacting area 12 of a plurality of process medium channels 14a-h of the replaceable component 10 is bounded at least section by a base body 100 and by at least one membrane 200 along its respective course. A cover 300 secures the at least one membrane 200 to the base body 100.

[0048] At least one part of the process medium channels 14a-h has in its respective course at least one valve segment 16a-h with a fixed valve seat 118a-h of the base body 100 and with a dynamically loadable diaphragm section 220a-h of the diaphragm 200.

[0049] In other words, each valve segment 16a-h is arranged in an intermediate section of the process medium channel 14a-h. At least one part of the process medium channels 14a-h contains, along its length, at least one of the valve segments 16a-h, which comprises the fixed valve seat 118a-h of the base body 100 and the dynamically loadable diaphragm section 220a-h of the diaphragm 200. This ensures that the valve segment 16a-h is not positioned at the beginning or end of the channel, but is integrated, for example, in a middle intermediate section within the process medium channel 14a-h. The valve segment 16a-h therefore does not close off the process medium channel 14a-h, but is located in the intermediate section.

[0050] The dynamically loadable diaphragm section 220a-h of the respective valve segment 16a-h is movable between an open position, in which a process medium flow is allowed through the associated process medium channel 14a-h via the fixed valve seat 118a-h of the base body 100, and a closed position, in which the process medium flow is interrupted by the dynamically loadable diaphragm section 220a-h bearing against the fixed valve seat 118a-h of the base body 100.

[0051] The membrane section 220a-h is manufactured in an intermediate position between open and closed positions, has a residual stress and is brought into an open position by medium pressure.

[0052] The Membrane 200, for example, is designed as a single layer, but can also consist of several membrane layers.

[0053] It is provided that the cover 300 comprises a plurality of recesses 320a-h, each of which leads to the diaphragm section 220a-h of the at least one diaphragm 200 associated with one of the valve segments 16a-h.

[0054] The lid 300 and the base body 100 are rigidly fixed to each other in a plurality of spaced connection areas 30a-h.

[0055] The rigid connection between the cover 300 and the base body 100 means that no or only negligible relative movement or deformation takes place between the cover 300 and the base body 100 under the intended operating conditions.

[0056] In one example, the lid 300 and the base body 100 are made of the same rather rigid material, whereas the membrane 200 is made of a different, more flexible and / or elastic material. In another example, the material of the lid 300 and the base body 100 includes polypropylene (PP), and the material of the membrane 200 includes a thermoplastic elastomer (TPE) or a polymer resin.

[0057] In the example shown, it is provided that at least one of the connection areas 30a-h or the majority of the connection areas 30a-h is / are arranged between adjacent valve segments 16a-h.

[0058] In the section of Figure 2, it can be seen that a projection 130a-d of the base body 100 extends through a through-opening 230a-d of the membrane 200 and contacts a connecting section 330a-d of the cover 300.

[0059] In another example, instead of the projection 130a-d, a projection can also be formed in the lid 300 so that it is coated with a laser pigment. The medium-contacting base body 100 then remains without pigment, which is advantageous.

[0060] In the respective connection area 330a-h, the cover 300 is connected to the base body 100. In the example shown, the base body 100 and the cover are material-fitted in connection area 30a-h, for example, by means of a laser welding or adhesive bonding process. In another example not shown, the cover 300 and the base body 100 are connected to each other in connection area 30a-h by means of a screw connection or rivet connection.

[0061] To create a seal to the outside, at least one media-contacting section of the membrane 200 is surrounded by at least one clamping section 240 of the membrane 200, wherein the cover 300, which is supported on the base body 100 in the connection areas 30a-h, presses the at least one clamping section 240 of the membrane 200 onto a counter clamping section 140 of the base body 100 with at least one pressure section 340.

[0062] The majority of valve segments 16a-h lie in an imaginary common valve plane xy.

[0063] The majority of process medium channels 14a-h, each having at least one of the valve segments 16a-h, lead from an associated process medium connection 15a-h into a central process medium chamber 22, to which at least one further process medium channel 14i is connected, which in particular extends at least partially perpendicular to the imaginary common valve plane xy.

[0064] The process medium channel 14i runs along an imaginary central axis Z, where the central axis Z is perpendicular to the valve plane xz.

[0065] The process medium connections 15a-h can, for example, function as inlets to direct the introduced process medium via the respective valve segment 16a-h into the associated process medium channel 14a-h. Likewise, the process medium connections 15a-h can serve as outlets to direct the process medium introduced via the process medium connection 15i through the valve segments 16a-h to the process medium connections 15a-h.

[0066] In the example shown, the additional process medium channel 14i is designed without a valve segment. In another example, process medium channel 14i can be omitted, and one of the star-shaped converging process medium channels forms the outlet. Of course, other configurations are also conceivable, in which the process medium channels are routed differently. For example, a more elongated arrangement could have a flow channel from which individual branch process medium channels, each with a valve segment, branch off.

[0067] A segment of the respective process medium channel 14a-h oriented towards the respective connection 15a-h is formed exclusively by the base body 100.

[0068] The process medium channel 14i is formed exclusively by the base body.

[0069] The additional process medium channel 14i leads to another process medium connection 15i and is provided in the example as an outlet to direct the supplied process medium away from the replaceable component 10.

[0070] It is provided that a seat surface of the fixed valve seat 118a-h of the respective valve segment 16a-h is inclined away from the central process medium chamber 22. Thus, the seat surface, in an imaginary extension with an imaginary central longitudinal axis of the process medium channel 14a-h, encloses an angle between 6° and 18°, in particular an angle between 9° and 15°, and in particular an angle of 12°.

[0071] Component 10 is arranged such that the cover 300 has a projection 322 facing towards the base body 100, which serves as a counter bearing for a central chamber section 222 of the flexible membrane 200 that at least partially limits the central process medium chamber 22.

[0072] The base body 100 borders the central process medium chamber 22 on the side opposite the central chamber section 222 with a central chamber section 122.

[0073] Starting from the inlets of the process medium channels 14a-h, the central chamber section 122 narrows in a funnel shape towards the process medium channel 14i.

[0074] The surfaces of the central chamber section 122 of the base body 100 are, in the section shown in Figures 1 and 2, in which the central axis Z lies, at least section by section, essentially equidistant from the surfaces of the central chamber section 222 of the membrane 200 in the direction of the process medium channel 14i.

[0075] It is provided that the media-contacting area 12 of at least one of the segments 15a-h; 17a-h of the process medium channel 14a-h immediately adjoining the respective valve segment 16a-h is bounded by the base body 100 and by the at least one membrane 200.

[0076] Figures 5 to 7 show the process valve assembly 2 in different views. Figures 5 and 6 each show a schematic section of the process valve assembly 2 for the arrangement of the replaceable component 10. Figure 5 shows the assembled state. Figure 6 shows a first assembly state for arranging valve actuators 600a-h. Figure 7, on the other hand, shows an assembly state for arranging the replaceable component 10.

[0077] The process valve assembly 2 comprises the replaceable component 10; a valve base 500 with a connecting device 510 by means of which the replaceable component 10 is detachably fixed to the valve base 500. The majority of valve actuators 600a-h are rigidly attached to the valve base 500. The valve actuators 600a-h are configured to operate the replaceable component 10.

[0078] The valve base 500 is guided section by section through a through-opening in a mounting plate 502 of the process plant and is secured to the mounting plate 502, for example, by means of a screw connection. The respective valve actuator 600a-h is designed, for example, as a magnetic actuator, pneumatic actuator, or electric actuator. Different types of actuators can even be used in one device 2.

[0079] The respective valve actuator 600a-h moves a respective actuator rod 610a-h along an associated actuating axis Sa-h.

[0080] The positioning axis Sa-h, in an imaginary extension with an imaginary central axis z of component 10, encloses an angle between 6° and 18°, in particular an angle between 9° and 15°, in particular an angle of 12°.

[0081] It is provided that the valve base 500 comprises a plurality of compressors 520a-h movably mounted in the valve base 500 along the actuating axis Sa-h, that the plurality of compressors 520a-h can be actuated by a respective plurality of valve actuators 600a-h, that a respective plurality of compressors 520a-h, when moving into a first position, releases the dynamically loadable diaphragm section 220a-h of the respective valve segment 16a-h associated with the compressor 520a-h into the open position, and that in a second position, the respective plurality of compressors 520a-h forces the associated dynamically loadable diaphragm section 220a-h into the closed position.

[0082] Furthermore, it is provided that a spring element 522a-h assigned to the respective compressor 520a-h exerts a force on the respective compressor 520a-h in order to push the compressor 520a-h in a direction, in particular in the direction of the assigned valve drive 600a-h.

[0083] The compressor 520a-h and the spring element 522a-h are therefore configured so that the compressor 520a-h can be moved between a first position or rest position oriented towards the valve drive 600a-h and the second position, the closing position, defined by the valve seat 118a-h.

[0084] The spring element 522a-h is designed as a compression coil spring in the example, but can of course also be designed differently.

[0085] The respective compressor 520a-h has a contact contour 524a-h facing the associated dynamically loadable diaphragm section 220a-h, which is configured to press the diaphragm section 220a-h onto the valve seat 118a-h when the compressor 520a-h reaches the second position, such that the associated valve segment 16a-h is closed.

[0086] Each compressor 520a-h has an actuation surface 526a-h facing away from the associated dynamically loadable diaphragm section 220a-h. A respective distal section of the drive rod 610a-h contacts the actuation surface 526a-h to close the valve segment 16a-h and presses the compressor 520a-h onto the associated diaphragm section 220a-h.

[0087] The respective compressor 520a-h is slidably mounted along the actuating axis Sa-h by means of a sliding bearing 528a-h or a sliding bushing.

[0088] Each compressor 520a-h is axially mounted in an associated compressor sleeve 530a-h along the respective actuating axis Sa-h. The compressor sleeve 530a-h is arranged in the valve base 500. This advantageously simplifies manufacturing, firstly because standardized compressor sleeves can be produced, and secondly because individual arrangement in the valve base 500 is possible.

[0089] The respective compressor sleeve 530a-h is, for example, pressed into a bore, in particular a stepped bore, of the fitting base 500.

[0090] For example, a dynamic seal 529a-h designed as an 0-R.ing is arranged in an annular inner groove of the compressor sleeve 530a-h and forms a dynamic sealing area between itself and the outer circumference of the compressor 520a-h.

[0091] For example, a static seal 527a-h designed as an O-ring is arranged in a distal annular groove of the compressor sleeve 530a-h and forms a static sealing area between the fitting base 500 and the compressor sleeve 530a-h.

[0092] The majority of valve actuators 600a-h comprise a respective mounting section 650a-h facing the valve base, wherein the majority of mounting sections 650a-h of the valve actuators 600a-h are rigidly fixed between an actuator plate 700 and the valve base 500, spaced apart from each other.

[0093] In their assembled state, the valve actuators 600a-h are configured to be individually controlled in order to achieve an individual opening and closing state of the respective valve segment in the associated process fluid channel. The base body 500 has a central bore 552. The actuator plate 700 has a central bore 752. A screw 754 is inserted through and into the bore 552, with the external thread of the screw 752 engaging an internal thread in the bore 552. When the screw 752 is tightened, it rigidly secures the actuators 600a-h to the base body 500 via the actuator plate 700. This also prevents the valve actuators 600a-h from rotating.

[0094] For mounting the valve actuators 600a-h, the mounting section 650a-h, each designed as an outer collar, is received in a receiving area 750a-h on the first side of the actuator plate 700. Using a mounting aid 760a-h, which is arranged on the second side of the actuator plate 700, the respective mounting section 650a-h is secured to the actuator plate 700. The actuator plate 700 with the valve actuators 600a-h mounted on it is then positioned on the valve base 500.

[0095] The respective mounting aid 760a-h, in the example shown, is designed as a plastic clip and serves in the first step to secure the valve actuators 600a-h to the actuator plate 700, even if there is play. In the second step, the actuator plate 700 is positioned on the valve base 500, whereby the fastening sections 650a-h are positively engaged and essentially free of play between the actuator plate 700 and the valve base 500. The respective valve actuator 600a-h is thus rigidly fixed to the valve base 500.

[0096] The assembly aid 760a-h advantageously allows the respective valve actuator 600a-h to be rotated around the respective actuating axis during assembly, in order to position, for example, a control air connection of a pneumatic actuator or a connector connection of an electric actuator as desired.

[0097] The aforementioned initial positioning of the respective valve actuator 600a-h is achieved by first inserting a neck 660a-h, tapered relative to the mounting section 650a-h, through a corresponding lateral opening 760a-h in the actuator plate 700, so that the mounting section 650a-h reaches its mounting position in the receiving area 750a-h. In this mounting position, the mounting aid 760a-h is positioned on the side of the actuator plate 700 opposite the receiving area 750a-h. The mounting aid 760a-h is dimensioned parallel to the associated actuating axis such that it fills the space between a first surface of the actuator plate 700 and a diameter step 662a-h adjoining the neck 660a-h. Accordingly, the respective actuator 600a-h is positioned relative to the actuator plate 700 for further assembly.

[0098] In the first assembly state shown in Figure 6, the actuators 600a-h are not yet connected to the valve base 500. This is done in the previously described assembly step for fixing the actuator plate 700 to the valve base 500.

[0099] Figure 7 shows a perspective view of an assembly state for mounting the interchangeable component 10 using the connecting device 510.

[0100] The connecting device 510 comprises: a pressure plate 512, wherein the replaceable component 10 is arranged between the pressure plate 512 and the fitting base 500 in the assembled state; and at least one manually operable clamping device 514a-d, which engages the fitting base 500 and, in the assembled state of the replaceable component 10, engages with the pressure plate 512 in order to clamp the replaceable component 10 between the pressure plate 512 and the fitting base 500.

[0101] The clamping devices 514a-d, designed as star knobs, in the position shown provide a space into which the interchangeable component 10 is inserted.

[0102] Both the interchangeable component 10 and the fitting base 500 have a code to define a unique position between the component 10 and the fitting base 500. This provides a poka-yoke solution for connecting the component 10 to the fitting base 500.

[0103] In this example, the fitting base 500 includes a projecting pin 599 which, when the fitting base 500 and component 10 reach their predetermined target position or alignment relative to each other, engages in a lateral recess 99 of component 10. If the fitting base 500 and component 10 are not in the desired position relative to each other, the outer contour of component 10, which projects beyond the recess 99, prevents component 10 from being positioned and secured.

[0104] Once component 10 is positioned in the desired position relative to the valve base 500, the pressure plate 512 is brought into contact with component 10. Subsequently, the clamping devices 514a-d engage in narrow-sided recesses 516a-d of the pressure plate 512. The clamping devices 514a-d engage on the side of the pressure plate 512 facing away from component 10, thus clamping the replaceable component 10 to the valve base 500.

[0105] Figures 8 to 10 show another example of the process valve arrangement 2. The same interchangeable component 10 is used. For analogous features, refer to the description above.

[0106] In contrast to the example of Figures 5 and 6, the armature base 500, in which the compressors 520a-h are mounted, comprises a plate 540 facing the replaceable component 10 and a plate 550 facing away from the replaceable component 10.

[0107] The compressors 520a-h are mounted in the valve base 500 by means of axial bearings 542a-h arranged in through-openings of the plate 540. O-rings 544a-h between the plate 540 and the respective compressor 520a-h form a seal.

[0108] The plate 550 and the plate 540 are fixed to each other by means of at least two positioning pins 546a-b.

[0109] The plate 550 facing away from component 10 includes stop areas 552a-h on which a respective head 554a-h of one of the compressors 520a-h hits when it moves in the direction of component 10.

[0110] The stop area 552a-h prevents the compressor 520a-h from falling out in one direction when installed.

[0111] By adjusting the distance between the pressure contour 524a-h and the head 552a-h, the stop area 552a-h prevents over-pressing or destruction of the replaceable component 10.

[0112] The majority of valve actuators 600a-h can be locked and unlocked by means of a locking plate 900 that can be pivoted about the central axis z. The locking plate 900 and a mounting plate 910 together form an actuator mounting section 920. The locking plate 900 and the mounting plate 910 can be rotated, and in particular pivoted, relative to each other about the central axis z.

[0113] To pivot the locking plate 900 in relation to the mounting plate 910, screws 911a-b engage in an internal thread of the mounting plate 910, whereby the part of the respective screw 911a-b not located in the internal thread of the mounting plate 910 can move in elongated recesses 914a-b.

[0114] The recesses 914a-b extend, firstly, parallel to the central axis z through the locking plate 900. Secondly, the recesses 914a-b each extend along imaginary circular rings perpendicular to the axis z, with their centers on the central axis z.

[0115] The locking plate 900 and the receiving plate 910 are shown in Figures 8 to 10 in a first pivot position relative to each other, which corresponds to the locked position. In the first pivot position, the locking plate 900 and the receiving plate 910 define a plurality of receiving spaces 912a-h, which each receive a mounting section 650a-h of the valve actuator 600a-h facing the valve base 500.

[0116] In the first pivot position, the locking plate 900 and the mounting plate 910 are rigidly fixed to each other by the tightened screws 911a-b. This fixes the valve actuators 600a-h to the actuator mounting section 920.

[0117] If the screws 911a-b are loosened, the locking plate 900 can be pivoted about the axis z into a second pivoting position in the unlocking direction E shown in Figure 10. In the second pivoting position, the majority of fastening sections 650a-h can be removed through removal openings 916a-h provided in the locking plate 900. The diameter of each removal opening 916a-h corresponds to at least one outer diameter of an associated fastening section 650a-h.

[0118] The mounting section 650a-h is part of an adapter which has an adapter section on the opposite side to which differently designed valve actuators 600a-h can be arranged.

[0119] A distal coupling section 612a-h of the drive rod 610a-h and a counter-coupling section 512a-h of the compressor 520a-h couple the drive rod 610a-h to the compressor 520a-h in a force-conducting and detachable manner. This means that a movement of the drive rod 610a-h along its longitudinal axis, generated by the valve actuator 600a-h, results in a movement of the associated compressor 520a-h. In the example shown, the coupling section 612a-b includes a snap ring that engages in a groove that is part of the counter-coupling section 512a-h. Of course, other connection solutions are also conceivable.

[0120] To assemble the process valve assembly 2, the mounting sections 650a-h are first arranged in their respective receiving spaces 912a-h. For this purpose, the actuator mounting section 920 is first moved into the unlocking position, and then, after the mounting sections 950a-h have been inserted, it is moved into the locking position.

[0121] After the first step, the drive assembly section 920 is fixed to the fitting base 500 via the screw 745 in a second step.

[0122] In a third step, the valve actuators 600a-h are activated to move the respective valve stem 610a-h into a closed position. The distal end of the valve stem 610a-h then engages in the negative feedback section 512a-h of the associated compressor 520a-h. During disassembly, the respective compressor 520a-h can be removed via the removal opening 916a-h in the unlocked position of the locking plate 900.

Claims

Patent claims 1. An interchangeable component (10) for a process valve assembly (2), wherein a media-wetted area (12) of a plurality of process medium channels (14a-h) of the interchangeable component (10) is bounded at least section by a base body (100) and by at least one diaphragm (200) along its respective course, wherein a cover (300) defines the at least one diaphragm (200) relative to the base body (100), wherein at least a portion of the process medium channels (14a-h) along their course comprises at least one valve segment (16a-h) with a fixed valve seat (118a-h) of the base body (100) and with a dynamically loadable diaphragm section (220a-h) of the diaphragm (200), and wherein the dynamically loadable diaphragm section (220a-h) of the respective valve segment (16a-h) is located between an open position in which a process medium flow passes through the associated process medium channel (14a-h) via the fixed valve seat (118a-h) of the base body (100) is made possible,and a closed position in which the process medium flow is prevented by the dynamically loadable membrane section (220a-h) being in contact with the stationary valve seat, (118a-h) of the base body (100) is interrupted, is movable.

2. The replaceable component (10) according to claim 1, wherein the cover (300) comprises a plurality of recesses (320a-h) which each lead to the membrane section (112a-h) of the at least one membrane (110) associated with one of the valve segments (16a-h).

3. The replaceable component (10) according to claim 1 or 2, wherein the cover (300) and the base body (100) are rigidly fixed to each other in a plurality of spaced-apart connection areas (30a-h).

4. The replaceable component (10) according to the previous claim, wherein at least one of the connection areas (30a-h) or the majority of the connection areas (30a-h) is / are arranged between adjacent valve segments (16a-h).

5. The replaceable component (10) according to claim 3 or 4, wherein at least one media-contacting section of the membrane (200) is surrounded by at least one clamping section (240) of the membrane (200), and wherein the cover (300), which is supported on the base body (100) in the connection areas (30a-h), with at least one pressure section (340) the at least one The tensioning section (240) of the membrane (200) presses against a counter-tensioning section (140) of the base body (100).

6. The replaceable component (10) according to one of the preceding claims, wherein the plurality of valve segments (16a-h) lie in an imaginary common valve plane (xy).

7. The interchangeable component (10) according to one of the preceding claims, wherein the plurality of process medium channels (14a-h) each having at least one of the valve segments (16a-h) lead into a central process medium chamber (22), to which at least one further process medium channel (141) is connected, which in particular extends at least partially perpendicular to the imaginary common valve plane (xy).

8. The replaceable component (10) according to claim 7, wherein a seating surface of the fixed valve seat (118a-h) of the respective valve segment (16a-h) is inclined away from the central process medium chamber (22).

9. The replaceable component (10) according to claim 7 or 8, wherein the cover (300) has a projection (322) facing towards the base body (100), which serves as a counter bearing for a central chamber section (222) of the flexible membrane (200) that at least partially delimits the central process medium chamber (22).

10. The replaceable component (10) according to one of the preceding claims, wherein the media-contacting area (12) is bounded by the base body (100) and by the at least one membrane (200) of at least one of the segments (15a-h; 17a-h) of the process medium channel (14a-h) immediately adjoining the respective valve segment (16a-h).

11. A process valve assembly (2) comprising: a replaceable component (10) with a plurality of process medium channels (14a-h), in particular the replaceable component (10) according to one of the preceding claims; a valve base (500) with a connecting device (510) by means of which the replaceable component (10) is detachably fixed to the valve base (500); and a plurality of valve actuators (600a-h) which are rigidly but detachably attached to the fitting base (500) and which are designed to operate the replaceable component (10).

12. The process valve arrangement (2) according to claim 11, wherein the valve base (500) comprises a plurality of compressors (520a-h) movably mounted in the valve base (500) along a respective actuating axis (Sa-h), wherein the plurality of compressors (520a-h) can be actuated by a respective plurality of valve actuators (600a-h), wherein a respective plurality of compressors (520a-h) upon movement into a first position releases a movement of the dynamically loadable diaphragm section (220a-h) of the respective valve segment (16a-h) associated with the compressor (520a-h) into the open position, and wherein in a second position the respective plurality of compressors (520a-h) forces the associated dynamically loadable diaphragm section (220a-h) into the closed position.

13. The process valve arrangement (2) according to one of claims 11 to 12, wherein the plurality of valve actuators (600a-h) can be locked and unlocked by means of a locking plate (900) pivotable about a central axis (z).

14. The process valve arrangement (2) according to claim 13, wherein the locking plate (900) and a receiving plate (910) are rotatable relative to each other, wherein the locking plate (900) and the receiving plate (910) define a plurality of common receiving spaces (912a-h) in a first pivoting position relative to each other, which receive a respective mounting section (650a-h) of the valve actuator (600a-h) facing the valve base (500), and wherein the plurality of mounting sections (650a-h) can be removed in a second pivoting position of the locking plate (900) and the receiving plate (910) relative to each other.

15. The process valve assembly (2) according to any one of claims 10 to 14, wherein the connecting device (510) comprises: a pressure plate (512), wherein the replaceable component (10) is arranged in the assembled state between the pressure plate (512) and the valve base (500); and at least one manually operable clamping device (514a-d) which engages the armature base (500) and, in the assembled state of the replaceable component (10), engages with the pressure plate (512) to clamp the replaceable component (10) between the pressure plate (512) and the armature base (500).

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