Controller without auxiliary power with signal lines

Abstract

Controller without auxiliary power (100) with signal lines, comprising a valve housing (110) and a drive housing (111), wherein the valve housing (110) comprises an inlet chamber (120) and an outlet chamber (130), and a valve seat (140) arranged in the valve housing (110), which is arranged between the inlet chamber (120) and the outlet chamber (130), as well as a valve member (141) cooperating with the valve seat (140), and a diaphragm drive (150) arranged in the drive housing (111), wherein the diaphragm drive (150) comprises a diaphragm (153), a first working chamber (151), and a second working chamber (152), wherein the first working chamber (151) and the second working chamber (152) are separated from one another by the diaphragm (153), wherein the diaphragm drive (150) is connected to the valve member (141) via a valve rod (170) and is designed to move the valve member (141) in order to form an adjustable throttle point (142) between the valve member (141) and the valve seat (140), wherein the valve housing (110) comprises an insert element (180) through which the valve rod (170) and the valve member (141) are guided along a longitudinal axis (200), where at least two separate signal lines (145, 172) for media transport run through the valve rod (170).

Description

[0001] The invention relates to a device comprising a controller without auxiliary power with signal lines.

[0002] Today's regulators are manufactured using industrial processes. For the efficiency of industrial processes, it is advantageous to use identical parts. This allows for the utilization of synergistic effects through high production volumes. However, in self-powered regulators, the external signal lines between the valve housing and the actuator are often subsequently adapted and connected. These metal lines are custom-made. This process is complex and not precisely reproducible, which complicates later interchangeability.

[0003] Additionally, using identical parts makes it easier to replace defective or worn parts, as they are available in larger quantities. This lowers maintenance and repair costs and minimizes potential downtime.

[0004] Using common parts increases the likelihood of spare parts being available when needed, as the same parts are used in several different valve models. This allows regulators to be repaired longer, thus saving costs.

[0005] The task is to develop a modular, self-powered regulator with as many common parts as possible, such as the valve stem, valve body, and valve insert. This regulator can be configured in various ways, enabling various pressure and flow regulator variants.

[0006] DE 10 2016 120 565 A1 discloses a volume flow regulator without auxiliary energy for volume flow control, wherein one pressure chamber is connected via a pre-pressure line (control line) to the pre-pressure area of ​​the valve seat and the other pressure chamber is connected via a bore in the valve rod to an orifice pressure chamber present in the valve seat component.

[0007] EP 2 848 846 B1 describes a pressure regulator with a drive diaphragm which is deflected by means of a differential pressure of the process medium and openings are provided in the valve housing which direct process pressures into the working chamber of the diaphragm.

[0008] DE 37 41 676 A1 discloses a flow control valve comprising a valve housing, an actuator housing, an inlet-side chamber, an outlet-side chamber, a valve rod, a diaphragm, a first pressure chamber, a second pressure chamber, and a valve seat. In the flow control valve, the throttle point formed by the valve seat and a closure piece is arranged in series with an adjustable second throttle point. Connected to the valve housing is an actuator housing which is divided into two pressure chambers by a movable partition, such as a diaphragm, which is connected to the closure piece via a valve rod. The actuator housing can each be connected to channels leading to pressure measuring points upstream or downstream of the second throttle point, one channel running through the valve rod to an internal measuring point.

[0009] It is therefore an object of the invention to provide a device which improves the state of the art with regard to a more compact and modular design.

[0010] This is achieved according to the invention by a device according to claim 1. Advantageous embodiments can be found, for example, in the subclaims. The content of the claims is incorporated into the content of the description by express reference.

[0011] One subject of the invention is a regulator without auxiliary power, hereinafter referred to as a regulator, with signal lines, comprising a valve housing and a drive housing. The valve housing comprises an inlet chamber and an outlet chamber, as well as a valve seat arranged in the valve housing, which is arranged between the inlet chamber and the outlet chamber, as well as a valve member interacting with the valve seat and a diaphragm drive which is arranged in the drive housing, wherein the diaphragm drive comprises a diaphragm, a first working chamber and a second working chamber, wherein the first working chamber and the second working chamber are separated from one another by the diaphragm. The diaphragm drive is connected to the valve member via a valve rod and is designed to move the valve member in order to form an adjustable throttle point between the valve member and the valve seat.The valve housing comprises an insert element through which the valve stem and the valve element are guided along a longitudinal axis. At least two separate signal lines for media transport run through the valve stem. The self-powered regulator with signal lines can also be referred to as a power-free regulator with signal lines.

[0012] The same basic components can be used in the various regulator configurations and when used as a pressure regulator or volume flow regulator. These are the valve housing, the insert element, the diaphragm actuator, the valve stem with cross holes on both sides, and the two lines for media transport. The two lines for media transport are two fluidically separated signal lines. The signal lines do not have to be used in every configuration during regulator operation, but are provided in the basic design of the component. If necessary, holes can simply be closed with plugs or screws, or can be left out altogether. This allows the regulator to be designed as a volume regulator or a pressure regulator. The different regulator types can have different signal flow paths or the drilling patterns that form these for media transport.

[0013] The regulator comprising a valve housing and a diaphragm actuator can be provided with an external connection. The valve housing and the insert element can each be provided with a different internal bore due to different line routing. The valve housing and the insert element can optionally comprise different bores for connection to working chamber one or two. Alternatively or additionally, to the first cavity or the second cavity. Alternatively or additionally, to the inlet chamber or the outlet chamber. When used as a volume flow regulator, the valve element can also comprise additional bores.

[0014] In an advantageous embodiment, at least two sliding seals are arranged between the insert element and the valve stem. The sliding seals can extend around the valve stem or around the longitudinal axis.

[0015] In an advantageous embodiment, the valve rod comprises at least one first transverse bore, wherein the first transverse bore is connected to the first working chamber of the diaphragm drive via a first signal line which runs through the valve rod.

[0016] A bore is a recess in a surface that is completely enclosed on the outer sides. The recess can be partially or completely formed in or through the valve stem. A bore differs from an opening, which is located, for example, at the end of a valve stem, in that the opening does not have a continuous outer contour.

[0017] The longitudinal axis of the valve stem is the line running from the top to the bottom of the valve stem. This is the main axis of the valve stem and determines the direction in which the stem moves to open or close the valve. Movement along this longitudinal axis allows the valve stem to control the position of the regulator for adjusting the throttle point and thus regulate the flow of a medium through the valve. The medium can be a gas or a liquid.

[0018] In an advantageous embodiment, the valve member and the valve rod are displaceable between a first position and a second position for adjusting the throttle point along the longitudinal axis.

[0019] In the first position, the regulator can be fully open, allowing maximum flow of a medium or process fluid through the regulator. This is often achieved by moving the valve stem in one direction to open the valve.

[0020] In the second position, the regulator can be fully closed, which can completely stop the flow of the medium or process fluid through the regulator. This is achieved by moving the valve stem in the opposite direction to close the regulator. In the second position, the valve member can engage the valve seat, separating the inlet chamber from the outlet chamber. To this end, the valve stem is moved in the positive Y direction, causing the valve member to move toward the valve seat. The Y direction is referred to as the vertical axis in the regulator according to the invention.

[0021] The regulator can also be operated in positions between these two extremes to regulate the flow of the medium or process fluid. The exact position of the regulator within this range is determined by the flow control requirements of the specific application.

[0022] In a further advantageous embodiment, a first cavity is formed between the insert element and the valve rod, which extends at least partially along an outer wall of the valve rod and runs parallel to the longitudinal axis. This first cavity is connected to the first transverse bore. The cavity can be formed by the at least two sliding seals arranged between the insert element and the valve rod, wherein the at least two sliding seals are arranged at a distance from one another.

[0023] The sliding seals may include a seal to the valve stem so that no fluid from the signal lines can enter other areas of the regulator.

[0024] In an advantageous embodiment, a length of the first cavity parallel to the longitudinal axis corresponds to at least a length of the distance between the first position and the second position along the longitudinal axis.

[0025] In a further advantageous embodiment, a second cavity is formed between the valve member and the insert element to relieve the pressure on the valve member and a second transverse bore, which runs transversely to the longitudinal axis, can be connected to the second cavity.

[0026] A pressure-relieved valve element can be installed in regulators to reduce the actuating force of the valve element and enable more precise control.

[0027] In a control valve, the valve element (e.g., a flap or piston) is subjected to the pressure of the medium flowing through the valve. This pressure can be considerable. Especially in high-pressure applications, it can be difficult to open or close the valve element.

[0028] The pressure-balanced valve element with the second cavity allows a medium to act on both sides of the valve element. This equalizes the pressure on both sides of the valve element, reducing the load on the valve element. This facilitates the opening and closing of the valve element and enables more precise flow control.

[0029] Additionally, a pressure-balanced valve element can help reduce wear on the regulator and extend its service life. It can also help reduce the risk of leaks by more evenly distributing pressure across the valve element.

[0030] In an advantageous embodiment, the valve rod comprises a second signal line which is designed so that the second cavity can be connected to the inlet chamber via the second transverse bore which is connected to the second signal line.

[0031] In a further advantageous embodiment, a setpoint spring is arranged between the insert element and the diaphragm of the diaphragm actuator. The setpoint spring can be mounted against the insert element on a first side. On an opposite second side, the setpoint spring can be mounted with an adapter element opposite a pressure sleeve. The pressure sleeve can be attached to the valve stem. The setpoint spring serves to preload the diaphragm actuator to a setpoint to be controlled. The diaphragm of the diaphragm actuator can then move around this position against the setpoint spring.

[0032] The setpoint spring in a regulator can be used to initially adjust the flow through the regulator. It is an integral part of the actuating mechanism that controls the valve stroke via the valve stem.

[0033] The setpoint spring can be preloaded to set a specific pressure or flow (the "setpoint"). If the actual pressure or flow (the "actual value") deviates from the setpoint, this results in movement of the valve stem, which changes the position of the valve member to increase or decrease flow through the restriction, thus restoring the setpoint.

[0034] The setpoint spring therefore makes it possible to precisely control the flow rate or pressure through the throttle point and to react to changes in the system to ensure constant performance.

[0035] In an advantageous embodiment, the second working chamber is connected or connectable to an external connection via a control line. The regulator or diaphragm actuator can be preloaded via the external connection. For this purpose, the second working chamber can be pressurized with an external medium and / or vented via the external connection.

[0036] In a further advantageous embodiment, the external connection is connected to the first cavity. The regulator can be preloaded via the external connection. For this purpose, the first working chamber can be pressurized with an external medium and / or vented via the external connection.

[0037] For this purpose, in an advantageous embodiment, the controller can comprise a fifth signal flow path that opens between the sliding seals. The control line can be connected to the external connection via the first transverse bore, and the first signal line within the valve stem can be connected to the first working chamber. The control line can be used to adjust the setpoint relative to the setpoint spring by applying external pressure via the external connection.

[0038] In a further advantageous embodiment, the second cavity is connected to the second working chamber via a third signal line through the insert element. The second cavity is connected or connectable to the outlet chamber via the second transverse bore and the second signal line.

[0039] In an advantageous embodiment, the valve rod is connected via the second signal line to an orifice area between the inlet chamber and outlet chamber, wherein the bore is connected via the third signal line through the insert element to the second working chamber.

[0040] The orifice area is a second throttling point provided in a volume flow controller according to one embodiment of the invention. The throttling point can be formed by an orifice arranged between the inlet chamber and the outlet chamber. The orifice can be adjusted or changed in its position between the inlet chamber and the outlet chamber using an adjusting screw located on the orifice. By adjusting the orifice using the adjusting screw, a volume flow of a medium between the inlet chamber and the outlet chamber can be preset. The adjusting screw is accessible via a removable cap on the valve housing.

[0041] In an advantageous embodiment, the second cavity can be connected to the second working chamber via a third signal line through the insert element. This allows the regulator to be used as a volume flow regulator. For this purpose, the regulator can comprise the removable cap. The cap of the regulator closes an opening into the inlet chamber at the top. The opening can be arranged concentrically to the longitudinal axis. An orifice of an orifice region can be arranged in the opening and can be designed to accommodate and guide the valve rod, particularly in the region of the second signal line.

[0042] In an advantageous embodiment, the diaphragm actuator is arranged so as to be rotatable relative to the valve housing. The control line of the external connection can open into an annular channel. The annular channel can be arranged between the valve housing and the actuator housing. The annular channel is connected to a third bore and a fourth bore, which are arranged in the fifth signal path. The third bore can be arranged in the actuator housing and the fourth bore can be arranged in the valve housing. The external connection can thus be connected to the annular channel via the third bore, and the first cavity can be connected to the annular channel via the fourth bore. A fluid can thus be fed into the annular channel via the external connection, which is connected to the third bore. The fluid can be fed from the annular channel to the first cavity via the fourth bore, which is provided with a second bore.

[0043] Thanks to the annular channel, the position of the third and fourth holes relative to each other, as well as the position of the actuator housing relative to the valve housing, can be freely selected. The diaphragm actuator and the actuator housing are designed so that they can be connected to the valve housing at any angle using a union nut. When installed in existing piping networks, the regulator's inlet and outlet, as well as the signal line, can be precisely adjusted. The annular channel allows the individual components to be arranged so they can rotate relative to each other.

[0044] The following describes the various signal flow paths for the pressure regulator variant and the volume flow regulator variant in an advantageous configuration. To implement the functionality, the different regulator types can include different drilling patterns.

[0045] The regulator, in the pressure regulator configuration, may include a first signal flow path. The first signal flow path may extend through the second signal line of the regulator via the second transverse bore into the second cavity of the regulator to relieve the valve member of the regulator from an inlet pressure in the inlet chamber.

[0046] A second signal flow path can run via the inlet chamber, through the throttle point, via the outlet chamber to a first bore, via the second bore into the first cavity, and from there into the first working chamber. The first bore can be arranged from the outlet chamber of the valve housing in the direction of the insert element and extend as far as the latter. The first bore can open into a second bore in the insert element, wherein the second bore in the insert element can extend in the direction of the valve rod or as far as the valve rod. The second bore can open from the insert element into the first cavity. From the first cavity, the second signal flow path can run via the first transverse bore in the valve rod and the first signal line, which is connected to the first transverse bore, into the first working chamber.The first signal line and / or the second signal line can be arranged in the valve stem and can preferably run parallel or identical to the longitudinal axis. A third signal flow path of the controller can run via the external control port. A medium can be supplied or discharged via this port. For this purpose, the external port can be connected to the control line, which can be connected to the second working chamber.

[0047] The controller in the design as a volume flow controller can include a fourth signal flow path. Signal flow paths 1 - 3 can be neglected or closed in this design. Corresponding bores can still be provided but closed to enable the greatest possible use of identical parts. The fourth signal flow path can run via the inlet chamber through the throttle point. The throttle point can be further narrowed via the orifice of the orifice area. The second signal line can open in the orifice area or in the orifice in the design as a volume flow controller. The fourth signal flow path can be led via the orifice area into the second signal line, which runs in the valve stem, up to the second transverse bore. The second transverse bore can be connected to the third signal line, which opens into the second working chamber. For this purpose, the third signal line can be arranged in the insert element.The third signal line in the insert element can preferably run parallel to the longitudinal axis in the insert element. A fifth signal flow path can be fed in via an external connection. The external connection can be connected to the signal line. The signal line can open into a third bore. The third bore opens into the annular channel. The annular channel can be connected to a fourth bore. The fourth bore can be connected to a second bore that opens into the first cavity. From the first cavity, the fifth signal flow path can flow into the first working chamber via the first transverse bore and the first signal line.

[0048] In the following, embodiments, further developments, and examples of the invention are explained in more detail with reference to the accompanying drawings. The figures show: Fig. 1: a regulator as a pressure regulator in sectional view; and Fig. 2: a controller as a volume control in sectional view; and Fig. 3: a regulator as a pressure regulator in sectional view with signal flows; and Fig. 4 a controller as a volume controller in sectional view with signal flows.

[0049] Fig. 1 shows a sectional view of a self-powered regulator 100 with signal lines 145, 172. The regulator 100 is designed as a pressure regulator. The regulator 100 comprises a valve housing 110 and a drive housing 111. The drive housing 110 and the valve housing 111 are connected via a union nut 220, with the valve housing 110 comprising an inlet chamber 120 and an outlet chamber 130. The valve housing 110 further comprises a valve seat 140 arranged in the valve housing 110, which is arranged between the inlet chamber 120 and the outlet chamber 130. It further comprises a valve member 141 which interacts with the valve seat 140. As well as a diaphragm drive 150 which is arranged in the drive housing 111, the diaphragm drive 150 comprises a diaphragm 153, a first working chamber 151 and a second working chamber 152, wherein the first working chamber 151 and the second working chamber 152 are separated from one another by the diaphragm 153.The diaphragm actuator 150 is connected to the valve member 141 via a valve rod 170 and is configured to move the valve member 141 to form an adjustable throttle point 142 between the valve member 141 and the valve seat 140. The valve housing 110 comprises an insert element 180 through which the valve rod 170 and the valve member 141 are guided along a longitudinal axis 200, wherein at least two separate signal lines 145, 172 for media transport extend through the valve rod 170.

[0050] The valve rod 170 comprises a first transverse bore 171, wherein the first transverse bore is connected via a first signal line 172 which runs through the valve rod 170 and is connected to the first working chamber 151 of the diaphragm drive 150.

[0051] A first cavity 173 is formed between the insert element 180 and the valve stem 170, which extends at least partially along an outer wall of the valve stem 170 and the insert element 180 and runs parallel to the longitudinal axis 200, wherein this first cavity 173 is connected to the first transverse bore 171. The controller 100 comprises an internally extending signal line for actuating the diaphragm actuator 150. The signal line connects the outlet chamber of the control valve to the first working chamber 151 of the diaphragm actuator 150. In the valve housing 110 of the outlet chamber 130, there is a first bore 176 extending toward the insert element 180. In the insert element 180, there is a second bore 177 connected to the first bore 176.

[0052] The interconnected bores 176, 177 in the valve housing 110, the insert element 180, and the valve stem, as well as the first cavity 173 and the first transverse bore 171, form a line for signal transmission. The first signal line 172 in the valve stem establishes the connection to the first working chamber 151. In this way, the process medium is guided from the outlet chamber 130 to the first working chamber 151. The valve stem 170 actuated thereby changes the position of the valve member 141 and thus the process medium pressure in the outlet chamber 130.

[0053] The first cavity 173 has a length parallel to the longitudinal axis 200. The length corresponds at least to a length of the distance between a first position and a second position along the longitudinal axis 170 of the valve member 141.

[0054] The valve member 141 and the valve rod 170 are variably displaceable between the first position and the second position for adjusting the throttle point 142 along the longitudinal axis 200.

[0055] In the first position, the regulator 100 is fully open, allowing maximum flow of a medium or process fluid through the regulator 100. This is achieved by moving the valve stem 170 in one direction to open the valve.

[0056] In the second position, the regulator 100 is fully closed, completely stopping the flow of the medium or process fluid through the regulator 100. This is achieved by moving the valve stem 170 in the opposite direction to close the regulator 100. In the second position, the valve member 140 engages the valve seat 140, separating the inlet chamber 120 from the outlet chamber 130.

[0057] The controller 100 can also be operated in positions between these two extremes to regulate the flow of the medium or process fluid. The exact position of the controller 100 within this range is determined by the flow control requirements of the specific application.

[0058] Between the valve member 141 and the insert element 180, a second cavity 143 is formed for relieving the pressure on the valve member 141 and a second transverse bore 144 which runs transversely to the longitudinal axis 200 and is connected to the second cavity 143.

[0059] The second cavity 143 is connected to the inlet chamber 120 via the second transverse bore 144 and via a second signal line 145 which runs through the valve rod 170.

[0060] A setpoint spring 190 is arranged between the insert element 180 and the diaphragm of the diaphragm drive 150.

[0061] The setpoint spring 190 is mounted against the insert element 180 on a first side. On an opposite second side, the setpoint spring 190 is attached to the valve rod 170 with a spring plate and a retaining ring. The valve rod 170 is connected to the pressure sleeve 154 via a plug connection or is inserted into the pressure sleeve 154. The setpoint spring 190 serves to preload the diaphragm actuator 150 to a setpoint to be controlled.

[0062] The second working chamber 152 is connected to an external connection 210 via a control line 174. The second working chamber 152 can be pressurized or vented through the external connection 210. Using this control line 174, the setpoint can be adjusted relative to the setpoint spring 190 by applying external pressure via the external connection 210.

[0063] The effective diaphragm surface of diaphragm 153 is subjected to the inlet pressure in the outlet chamber 130 and acts against the setpoint spring 190. A force equilibrium is established between the setpoint spring 190 and the signal pressure via the external port 210 by increasing or decreasing the preload of the setpoint spring 190, thereby moving the valve member 141 into different positions. This establishes a uniform outlet pressure in the outlet chamber 130.

[0064] Fig. 2 shows a self-powered regulator 300 with signal lines. The regulator 300 is designed as a volume flow regulator in a sectional view. The regulator 300 comprises a valve housing 110 and a drive housing 111, wherein the valve housing 110 comprises an inlet chamber 120 and an outlet chamber 130. The valve housing 110 further comprises a valve seat 140 arranged in the valve housing 110, which is arranged between the inlet chamber 120 and the outlet chamber 130. As well as a valve member 141 interacting with the valve seat 140. As well as a diaphragm drive 150, which is arranged in the drive housing 111. The diaphragm drive 150 comprises a diaphragm 153, a first working chamber 151, and a second working chamber 152, wherein the first working chamber 151 and the second working chamber 152 are separated from one another by the diaphragm 153.The diaphragm actuator 150 is connected to the valve member 141 via a valve rod 170 and is configured to move the valve member 141 to form an adjustable throttle point 142 between the valve member 141 and the valve seat 140. The actuator housing 111 comprises an insert element 180 through which the valve rod 170 and the valve member 141 are guided along a longitudinal axis 200, with at least two separate signal lines 145, 172 for media transport extending through the valve rod 170.

[0065] The valve rod 170 comprises a first transverse bore 171, wherein the first transverse bore is connected to the first working chamber 151 of the diaphragm drive 150 via a first signal line 172 which runs through the valve rod 170 and.

[0066] Between the insert element 180 and the valve rod 170, a first cavity 173 is formed, which extends at least partially on an outer wall of the valve rod 170 and the insert element 180 and runs parallel to the longitudinal axis 200, wherein this first cavity 173 is connected to the first transverse bore 171 and opens into the first working chamber 151.

[0067] The signal line for setting the setpoint begins at an external connection 210 and comprises a control line 174 and a third bore 178 connected thereto in the drive housing 111. The insert element 180 comprises a fourth bore 179 and a fifth bore 181 connected thereto, with the third bore 178 being connected to the fourth bore 179. The fifth bore 181 opens into the first cavity 173, which is delimited by two sliding seals. The first cavity 173 is connected to the first signal line 172 via the first transverse bore 171 in the valve rod 170. The first signal line opens into the first working chamber 151. By means of this signal line, the setpoint can be adjusted relative to the setpoint spring 190, for example by means of external pressure application via the external connection 210. The sliding seals are sealed in addition to the valve rod 170 so that no fluid can enter other areas of the regulator 300.

[0068] The first cavity 173 has a length parallel to the longitudinal axis 200. The length corresponds at least to a length of the distance between a first position and a second position along the longitudinal axis 170.

[0069] The valve member 141 and the valve rod 170 are variably displaceable between the first position and the second position for adjusting the throttle point 142 along the longitudinal axis 200.

[0070] In the first position, the regulator 300 is fully open, allowing maximum flow of a medium or process fluid through the regulator 300. This is often achieved by moving the valve stem 170 in one direction to open the valve.

[0071] In the second position, the regulator 300 is fully closed, completely stopping the flow of the medium or process fluid through the regulator 300. This is achieved by moving the valve stem 170 in the opposite direction to close the regulator 300. In the second position, the valve member 140 engages the valve seat 140, separating the inlet chamber 120 from the outlet chamber 130.

[0072] The regulator 300 can also be operated in positions between these two extremes to regulate the flow of the medium or process fluid. The exact position of the regulator 300 within this range is determined by the flow control requirements of the specific application.

[0073] Between the valve member 141 and the insert element 180, a second cavity 143 is formed for relieving the pressure on the valve member 141 and a second transverse bore 144 which runs transversely to the longitudinal axis 200 and is connected to the second cavity 143.

[0074] The external terminal 210 is connected to the first cavity 173.

[0075] The second cavity 143 is connected to the second working chamber 152 via a third signal line 146 through the insert element 180. The valve rod 170 with the signal line 145 is also connected to the second cavity 143, so that a connection exists from an orifice 310 in the orifice area between the inlet chamber 120 and the outlet chamber 130 and the second working chamber 152.

[0076] The orifice area is a second throttle point provided in the regulator 300. The throttle point can be formed by an orifice 310 arranged between the inlet chamber 120 and the outlet chamber 130. The position of the orifice 310 between the inlet chamber 120 and the outlet chamber 130 can be adjusted or changed using an adjusting screw arranged on the orifice 310. By adjusting the orifice 310 using the adjusting screw, a volume flow of a medium between the inlet chamber 120 and the outlet chamber 130 can be preset. The adjusting screw is accessible via a removable cap on the valve housing 110.

[0077] The second cavity 143 is connected to the orifice 310 via the second transverse bore 144 and via a second signal line 145 which runs through the valve rod 170.

[0078] A setpoint spring 190 is arranged between the insert element 180 and the diaphragm of the diaphragm drive 150.

[0079] The setpoint spring 190 is mounted against the insert element 180 on a first side. On an opposite second side, the setpoint spring 190 is mounted with an adapter element opposite a pressure sleeve 154. The pressure sleeve 154 is attached to the valve rod 170. The setpoint spring 190 serves to preload the diaphragm actuator 150 to a setpoint to be controlled. The effective diaphragm area of ​​the diaphragm 153 is acted upon by the orifice pressure between the inlet chamber 120 and the outlet chamber 130 and acts against the setpoint spring 190. A force equilibrium is established between the setpoint spring 190 and the signal pressure in that the setpoint spring is preloaded more or less, thus moving the valve member 141 into different positions. This establishes a uniform volume flow in the outlet chamber 130.

[0080] For regulator 300, the effective diaphragm area refers to the area of ​​diaphragm 153 that is actually used for pressure regulation. Diaphragm 153 is an essential component of the regulator and responds to pressure changes in the system.

[0081] The diaphragm is typically loaded with the system pressure in the first working chamber on one side and a reference or control pressure, which can be supplied via external port 210, on the other side. The size of the effective diaphragm area can influence the sensitivity and response of the regulator 300.

[0082] In an advantageous embodiment, the diaphragm actuator 150 is arranged so as to be rotatable relative to the valve housing 110. The control line 174 of the external connection 210 opens into an annular channel 230. The annular channel 230 is connected to the third bore 178 and the fourth bore 179. Due to the annular channel 230, the position of the third bore 178 and the fourth bore 179 relative to one another can be arbitrarily selected. The diaphragm actuator 150 or the drive housing 111 of the diaphragm actuator 150 are designed so that they can be connected to the valve housing 110 by means of a union nut 220 in any desired angular position. When installed in existing piping networks, the various connections of the regulator 300 can be rotated relative to one another.

[0083] Fig. 3 shows all the features of the Fig. 1 and additionally the signal flow paths 240, 250, 260 of a medium guided through the regulator 100, which is designed as a pressure regulator. A first signal flow path 240 runs through the second signal line 145 into the second cavity 143 to relieve a valve member 141 against an inlet pressure in an inlet chamber 120. A second signal flow path 250 flows via the inlet chamber 120 through the throttle point 142 between the inlet chamber 120 and the outlet chamber 130 via the outlet chamber 130 to a first bore 176 via a second bore 177 into the first cavity 173. From the first cavity 173, the second signal flow path 250 flows via the first transverse bore 171 and the first signal line 172 into the first working chamber 151. A third signal flow path 260 runs via the external control connection 210. A medium can be supplied or discharged via this in order to set a setpoint of the controller.For this purpose, the external connection is connected to the control line 174, which is connected to the second working chamber 152.

[0084] Fig. 4 shows all the features of the Fig.2 and additionally the signal flow paths 320, 330 of a medium running through the controller 300, which is designed as a volume flow controller. A fourth signal flow path 320 runs via an inlet chamber 120 and via a throttle point 142, which is narrowed by an orifice 310, into the second signal line 145 in the valve rod 170 up to a second transverse bore 144. The second transverse bore is connected to a third signal line 146, which opens into the second working chamber 152. A fifth signal flow path 330 is fed via an external connection 210. The external connection 210 is connected to a signal line 174. The signal line 174 opens into a third bore 178. The third bore 178 opens into an annular channel 230. The annular channel 230 is also connected to a fourth bore 179. The fourth bore 174 is connected to a second bore 176, which opens into the first cavity 173.From the first cavity 173, the fifth signal flow path 330 runs via the first transverse bore 171 and the first signal line 172 into the first working chamber 151.

[0085] The invention is not limited to the described embodiments. Within the scope of the invention, all described and / or illustrated features can be combined with one another in any way, unless otherwise stated. LIST OF REFERENCE SYMBOLS 100 controllers 110 valve housing 111 Drive housing 120 Inlet chamber 130 Outlet chamber 140 valve seat 141 valve element 142 throttle point 143 Second cavity 144 Second cross hole 145 Second signal line 146 Third signal line 150 diaphragm drive 151 First Labor Chamber 152 Second Labor Chamber 153 Membran 154 Pressure sleeve 170 valve rod 171 First cross hole 172 First signal line 173 First cavity 174 Control line 176 First drilling 177 Second borehole 178 Third borehole 179 Fourth hole 180 insert element 181 Fifth borehole 190 Setpoint spring 200 Longitudinal axis 210 External connection 220 union nut 230 ring canal 240 First signal flow path 250 Second signal flow path 260 Third signal flow path 300 controllers 310 aperture 320 Fourth signal flow path 330 Fifth signal flow path

Claims

[1] Self-powered controller (100) with signal lines, comprising a valve housing (110) and a drive housing (111), wherein the valve housing (110) comprises an inlet chamber (120) and an outlet chamber (130), and a valve seat (140) arranged in the valve housing (110), which is arranged between the inlet chamber (120) and the outlet chamber (130), as well as a valve member (141) cooperating with the valve seat (140), and a diaphragm drive (150) arranged in the drive housing (111), wherein the diaphragm drive (150) comprises a diaphragm (153), a first working chamber (151), and a second working chamber (152), wherein the first working chamber (151) and the second working chamber (152) are separated from one another by the diaphragm (153), wherein the diaphragm drive (150) is connected to the valve member (141) via a valve rod (170) and is designed to move the valve member (141) in order to form an adjustable throttle point (142) between the valve member (141) and the valve seat (140), wherein the valve housing (110) comprises an insert element (180) through which the valve rod (170) and the valve member (141) are guided along a longitudinal axis (200), where at least two separate signal lines (145, 172) for media transport run through the valve rod (170). [2] Regulator without auxiliary energy (100) according to claim 1, characterized by that the valve rod (170) comprises a first transverse bore (171), wherein the first transverse bore is connected to the first working chamber (151) of the diaphragm drive (150) via a first signal line (172) which runs through the valve rod (170) and is connected. [3] Regulator without auxiliary energy (100) according to at least one of the preceding claims 1 to 2, characterized bythat a first cavity (173) is formed between the insert element (180) and the valve rod (170), which first cavity (173) extends at least partially on an outer wall of the valve rod (170) and the insert element (180) and runs parallel to the longitudinal axis (200), said first cavity (173) being connected to the first transverse bore (171). [4] Regulator without auxiliary energy (100) according to claim 3, characterized by that a length of the first cavity (173) parallel to the longitudinal axis (200) corresponds to at least a length of the distance between a first position and a second position along the longitudinal axis (170). [5] Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized bythat a second cavity (143) for relieving the pressure on the valve member (141) is formed between the valve member (141) and the insert element (180), and a second transverse bore (144) which runs transversely to the longitudinal axis (200) and can be connected to the second cavity (143). [6] Regulator without auxiliary energy (100) according to claim 5, characterized by in that the valve rod (170) comprises a second signal line (145) which is designed so that the second cavity (143) can be connected to the inlet chamber (120) via the second transverse bore (144), which is connected to the second signal line (145). [7] Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized by that a setpoint spring (190) is arranged between the insert element (180) and the membrane of the membrane drive (150). [8] Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized bythat the second working chamber (152) is connected to an external connection (210) via a control line (174). [9] Regulator without auxiliary energy (100) according to at least one of the preceding claims 3 to 8, characterized by that the external connection (210) is connected to the first cavity (173). [10] Regulator without auxiliary energy (100) according to at least one of the preceding claims 5 to 9, characterized by that the second cavity (143) is connected to the second working chamber (152) via a third signal line (146) through the insert element (180). [11] Regulator without auxiliary energy (100) according to claim 10, characterized by that the valve rod (170) is connected via the second signal line (145) to an orifice region between the inlet chamber (120) and the outlet chamber (130), wherein the bore is connected via the third signal line (146) through the insert element (180) to the second working chamber (152). [12] Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized by that the valve member (141) and the valve rod (170) are displaceable between a first position and a second position for adjusting the throttle point (143) along the longitudinal axis. [13] Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized by that the drive housing (111) is arranged so as to be rotatable relative to the valve housing (110). [14] Regulator without auxiliary energy (100) according to claim 13, characterized by that an annular channel (230) is arranged between the drive housing (111) and the valve housing (110). [15] Regulator without auxiliary energy (100) according to at least one of claims 13 or 14, characterized by that the external connection (210) is connected to the annular channel (230) and the first cavity (173) is connected to the annular channel (230).

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