Controller without auxiliary power with signal lines

Abstract

Regulator (100) without auxiliary power with signal lines, comprising a valve housing (110), 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), and a valve member (141) cooperating with the valve seat (140), and a diaphragm drive (150) comprising 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 switch between the valve member (141) and the Valve seat (140) to form an adjustable throttle point (142).The valve housing (110) further 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 run through the valve rod (170).

Description

The invention relates to a device comprising a regulator without auxiliary energy with signal lines.Present-day regulators are manufactured by means of industrial processes. For the efficiency of industrial processes, it is advantageous to use identical parts. This allows the use of synergy effects by means of high numbers. In the case of regulators without auxiliary energy, however, the signal lines are frequently subsequently adapted and connected externally between the valve housing and the drive. These metallic leads are custom made. This process is complicated and not unambiguously reproducible, which makes later exchangeability difficult with an external signal line.In addition, when using identical parts, it is easier to replace defective or worn parts, since these are available in a higher quantity. This reduces maintenance and repair costs and reduces possible down times.The use of identical parts increases the probability of the availability of replacement parts when these are required, since the same parts are used in a plurality of different valve models. As a result, regulators can be repaired for a longer time and costs can thereby be saved.The object is to develop a modular regulator without auxiliary energy with as many identical parts as possible, such as valve rod, valve housing and valve insert. This regulator can be configured differently, whereby different variants of pressure regulators and volume flow regulators are to be made possible.DE102016120565A1 discloses a volume flow regulator without auxiliary energy for volume flow regulation, one pressure chamber being connected via a preliminary pressure line (control line) to the preliminary pressure region of the valve seat and the other pressure chamber being connected via a bore in the valve rod to a diaphragm pressure chamber present in the valve seat component, with the signal line lying on the outside.EP2848846B1 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 guide process pressures into the working chamber of the diaphragm.It is therefore an object of the invention to provide a device which improves the prior art with respect to a more compact and modular design.This is achieved according to the invention by a device according to claim 1. Advantageous embodiments can be found, for example, in the dependent claims. The contents of the claims are expressly incorporated into the contents of the description by reference.The invention relates to a regulator without auxiliary energy, referred to below as a regulator with signal lines, comprising a valve housing and a drive housing. The valve housing includes an inlet chamber and an outlet chamber. a valve seat arranged in the valve housing and 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, 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 configured to move the valve member to form an adjustable throttle between the valve member and the valve seat. The valve housing comprises an insert element through which the valve rod and the valve member are guided along a longitudinal axis, wherein at least two separate signal lines for media transport run through the valve rod. The regulator without auxiliary energy with signal lines can also be referred to as auxiliary energy of free regulators with signal lines.In the various configurations of the regulator and when used as a pressure regulator or a volume flow regulator, the same basic parts can be used. These are the valve housing, the insert element, the diaphragm drive and the valve rod with the transverse bores on both sides and the two lines for transporting media. The two lines for transporting media are in this case two fluidically separated signal lines. The signal lines need not be used in any configuration during operation of the controller, but are provided in the basic embodiment of the component. If appropriate, bores can be easily closed with plugs or screws or may not be present. As a result, the regulator can be designed as a volume regulator or as a pressure regulator. For this purpose, the different controller types can comprise different signal flow paths or drilling patterns forming these for transporting media.The regulator comprising a valve housing and a diaphragm drive can be provided with an external connection. The valve housing and the insert element can each be provided with a different internal bore because of different line guides. The valve housing and the insert element can optionally comprise different bores for connection either into the working chambers one or two alternatively or additionally of the first cavity or the second cavity alternatively or additionally of the inlet chamber or the outlet chamber. When used as a volume flow regulator, the valve member can likewise comprise additional bores.In an advantageous embodiment, at least two sliding seals are arranged between the insert element and the valve rod. For this purpose, the sliding seals can extend about the valve rod or about the longitudinal axis.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.A bore is a depression in a surface which is completely enclosed on the outer sides. The depression can be provided partially or completely in or through the valve rod. A bore differs from an aperture which is arranged, for example, at the end of a valve rod in that the aperture does not have a continuous outer contour.The longitudinal axis with respect to the valve rod is the line running from the top to the bottom of the valve rod. It is the major axis of the valve rod and determines the direction in which the rod is moved to open or close the valve. Movement along this longitudinal axis allows the valve rod to control the position of the regulator to adjust the restriction and thus regulate the flow of a medium through the valve. The medium can be a gas or a liquid.In an advantageous embodiment, the valve member and the valve rod are displaceable along the longitudinal axis between a first position and a second position for setting the throttle point.In the first position, the regulator may be fully open, allowing maximum flow of a medium or process fluid through the regulator. This is often achieved by moving the valve rod in a direction to open the valve.In the second position, the regulator may be fully closed, which may completely stop the flow of the medium or process fluid through the regulator. This is achieved by moving the valve rod in the opposite direction to close the regulator. In the second position, the valve member may be engaged with the valve seat such that the inlet chamber is separated from the outlet chamber. For this purpose, the valve rod is moved in the positive Y direction, so that the valve member moves in the direction of the valve seat. The Y direction is referred to as the vertical axis in the regulator according to the invention.The regulator may also be operated in positions between these two extremes to regulate the flow of the medium or process fluid. The precise position of the regulator in this range is determined by the need for flow control in the specific application.In a further advantageous embodiment, a first cavity is formed between the insert element and the valve rod, which cavity extends at least partially on an outer wall of the valve rod and runs parallel to the longitudinal axis, wherein this first cavity is connected to the first transverse bore. The cavity can be formed by the at least two sliding seals which are arranged between the insert element and the valve rod, wherein the at least two sliding seals are arranged spaced apart from one another.The sliding seals may include a seal to the valve rod such that fluid from the signal lines cannot pass into other areas of the regulator.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.In a further advantageous embodiment, a second cavity for relieving the valve member is formed between the valve member and the insert element, and a second transverse bore, which runs transversely to the longitudinal axis, can be connected to the second cavity.A pressure relieved valve member may be incorporated into regulators to reduce the actuation force of the valve member and to enable more precise control.In a control valve, the valve member (e.g., a flap or piston) is loaded by the pressure of the medium flowing through the valve. This pressure may be significant, especially in high pressure applications, may make it difficult to open or close the valve member.The depressurized valve member with the second cavity allows a medium to act on both sides of the valve member. This balances the pressure on both sides of the valve member, reducing the load on the valve member. This facilitates opening and closing of the valve member and enables more accurate control of the flow.In addition, a pressure relieved valve member may help reduce the wear of the regulator and extend its life. It may also help reduce the risk of leaks, as the pressure on the valve member is distributed more evenly.In an advantageous embodiment, the valve rod comprises a second signal line which is designed for the purpose of connecting the second cavity to the inlet chamber via the second transverse bore which is connected to the second signal line.In a further advantageous embodiment, a set-point spring is arranged between the insert element and the diaphragm of the diaphragm drive. 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 fastened to the valve rod. The set-point spring serves to bias the diaphragm drive to a set point to be regulated. The diaphragm of the diaphragm drive can then move about this position against the setpoint spring.The set point spring in a regulator can be used for initial adjustment of the flow rate through the regulator. It is an integral part of the actuating mechanism which controls the valve lift via the valve rod.The set point spring may be biased to set a particular pressure or flow (the "set point"). If the actual pressure or flow (the "actual value") deviates from the set point, this results in a movement of the valve rod which changes the position of the valve member to increase or decrease the flow through the throttle and thus restore the set point.The set point spring thus makes it possible to control the volume flow or the pressure through the throttle point precisely and to react to changes in the system in order to ensure constant power.In an advantageous embodiment, the second working chamber is connected or connectable to an external connection via a control line. The controller or the diaphragm drive can be prestressed via the external connection. For this purpose, the second working chamber can be pressurized with an external medium and / or be vented via the external connection.In a further advantageous embodiment, the external connection is connected to the first cavity. The regulator can be prestressed via the external connection. For this purpose, the first working chamber can be printed with an external medium and / or be vented via the external connection.For this purpose, in an advantageous embodiment, the regulator can comprise a fifth signal flow path, which opens out between the sliding seals. The control line can be connected to the first working chamber via the first transverse bore and the first signal line within the valve rod. By means of the control line, the setpoint value can be adjusted with respect to the setpoint value spring by applying external pressure via the external connection.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 or can be connected to the outlet chamber via the second transverse bore and the second signal line.In an advantageous embodiment, the valve rod is connected via the second signal line to the one orifice region 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.The orifice region is a second throttle point provided in a volume flow regulator according to one embodiment of the invention. The throttle point can be formed by a diaphragm arranged between the inlet chamber and the outlet chamber. The aperture can be adjusted or changed in its position between the inlet chamber and the outlet chamber by means of a set screw arranged on the aperture. By adjusting the aperture via 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.In an advantageous embodiment, the second cavity can be connected to the second working chamber via a third signal line through the insert element. As a result, the regulator can 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. A diaphragm of a diaphragm region can be arranged in the opening and can be designed to receive and guide the valve rod, in particular in the region of the second signal line.In an advantageous embodiment, the diaphragm drive is arranged rotatably with respect 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 drive 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 may be disposed in the drive housing and the fourth bore may be disposed 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. Thus, a fluid can be fed into the annular channel via the external connection which is connected to the third bore. From the ring channel, the fluid can be supplied to the first cavity via the fourth bore, which is provided with a second bore.Due to the annular channel, the position of the third bore and the fourth bore with respect to one another can be selected as desired or the position of the drive housing with respect to the valve housing can be selected. The diaphragm drive or the drive housing is designed to be connectable to the valve housing by means of a union nut in any angular position. When installing it in existing pipeline networks, the inlet-outlet of the regulator and the signal line can be adjusted accurately. The annular line allows the individual components to be arranged such that they can be rotated with respect to one another.In the following, the various signal flow paths for the variant of the regulator as a pressure regulator and the variant of the regulator as a volume flow regulator are described in an advantageous embodiment. To implement the functionality, the different controller types may include different drill patterns.The regulator in the embodiment as a pressure regulator can comprise 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 for relieving the valve member of the regulator from an inlet pressure in the inlet chamber.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 may be disposed from the outlet chamber of the valve housing toward and extend to the insert member. 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 out of the insert element into the first cavity. From the first cavity, the second signal flow path can run via the first transverse bore of 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 rod and can preferably run parallel or identically to the longitudinal axis. A third signal flow path of the controller may run via the external control connection. A medium can be supplied to or discharged from this. For this purpose, the external connection can be connected to the control line, which can be connected to the second working chamber.The regulator in the embodiment as a volume flow regulator can comprise a fourth signal flow path. The signal flow paths 1- 3 can be neglected or closed in this embodiment. Corresponding bores can nevertheless be provided but closed in order to enable the highest possible use of identical parts. The fourth signal flow path may extend through the throttle via the inlet chamber. The throttle point can be additionally narrowed by the aperture of the aperture area. In the embodiment as a volume flow regulator, the second signal line can open out in the aperture region or in the aperture. The fourth signal flow path can be guided via the aperture region into the second signal line, which runs in the valve rod, as far as the second transverse bore. The second transverse bore can be connected to the third signal line, which opens into the second working chamber. The third signal line can be arranged in the insert element for this purpose. 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 may be fed in via an external terminal. The external terminal may 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 may be connected to a second bore which opens into the first cavity. From the first cavity, the fifth signal flow path can flow via the first transverse bore and the first signal line into the first working chamber.Embodiments, refinements and examples of the invention are explained in more detail below with reference to the appended drawings. The figures show: FIG. 1 : a regulator as a pressure regulator in a sectional illustration; and FIG. 2 : shows a controller as a volume controller in a sectional illustration; and FIG. 3 : shows a regulator as a pressure regulator in a sectional illustration with signal flows; and FIG. 4 shows a controller as a volume controller in a sectional illustration with signal flows.FIG. 1 shows a controller 100 without auxiliary energy 100 with signal lines 145, 172 in a sectional illustration. The regulator 100 is designed as a pressure regulator. The regulator 100 includes 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, 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 and arranged between the inlet chamber 120 and the outlet chamber 130. It further comprises a valve member 141 cooperating 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. Diaphragm drive 150 is connected to valve member 141 via a valve rod 170 and is designed to move valve member 141 to form an adjustable throttle point 142 between valve member 141 and 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 run through the valve rod 170 for the transport of media.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 to the first working chamber 151.A first cavity 173 is formed between the insert element 180 and the valve rod 170, said first cavity extending at least partially on an outer wall of the valve rod 170 and the insert element 180 and running parallel to the longitudinal axis 200, wherein said first cavity 173 is connected to the first transverse bore 171. The controller 100 comprises a signal line running in the interior for acting on the diaphragm drive 150. The signal line connects the outlet chamber of the control valve to the first working chamber 151 of the diaphragm drive 150. In the valve housing 110 of the outlet chamber 130, a first bore 176 is located in the direction of the insert element 180. In the insert member 180, there is a second bore 177 communicating with the first bore 176.The bores 176, 177 connected to one another and the first cavity 173 and the first transverse bore 171, which form a line for signal guidance, are located in the valve housing 110, in the insert element 180, and in the valve rod. The first signal line 172 in the valve rod establishes the connection with the first working chamber 151. In this way, the process medium is conducted from the outlet chamber 130 to the first working chamber 151. The valve rod 170 actuated thereby changes the position of the valve member 141 and thus a process medium pressure in the outlet chamber 130.The first cavity 173 has a length parallel to the longitudinal axis 200. The length corresponds to at least one length of the distance between a first position and a second position along the longitudinal axis 170 of the valve giedes 141.The valve member 141 and the valve rod 170 are variably displaceable between the first position and the second position for setting the throttle point 142 along the longitudinal axis 200.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 accomplished by moving the valve rod 170 in a direction to open the valve.In the second position, the regulator 100 is fully closed, which completely stops the flow of the medium or process fluid through the regulator 100. This is accomplished by moving the valve rod 170 in the opposite direction to close the regulator 100. In the second position, the valve member 140 engages the valve seat 140 such that the inlet chamber 120 is separated from the outlet chamber 130.The controller 100 may also be operated in positions between these two extremes to regulate the flow of the medium or process fluid. The precise position of controller 100 in this range is determined by the need for flow control in the specific application.Between the valve member 141 and the insert element 180, a second cavity 143 is formed for relieving the load 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.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.A set point spring 190 is arranged between the insert element 180 and the diaphragm of the diaphragm drive 150.The set point spring 190 is supported against the insert member 180 on a first side. On an opposite second side, the setpoint spring 190 is fastened to the valve rod 170 by means of a spring plate and a securing ring. The valve rod 170 is connected to the pressure sleeve 154 or inserted into the pressure sleeve 154 via a plug connection. The setpoint spring 190 is used to bias the diaphragm drive 150 to a setpoint to be regulated.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. By means of this control line 174, the setpoint value can be adjusted with respect to the setpoint value spring 190 via the external connection 210 by means of external pressurization.The effective diaphragm area of diaphragm 153 is loaded by the inlet pressure in outlet chamber 130 and acts against set point spring 190. A force equilibrium is established between the setpoint spring 190 and the signal pressure via the external port 210 by the setpoint spring 190 prestressing to a greater or lesser extent and the valve member 141 thus moving into different positions. This will establish a uniform output pressure in the outlet chamber 130.FIG. 2 shows a regulator without auxiliary energy 300 with signal lines. The regulator 300 is designed as a volume flow regulator in a sectional illustration. 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 and arranged between the inlet chamber 120 and the outlet chamber 130. A valve member 141 cooperating 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. Diaphragm drive 150 is connected to valve member 141 via a valve rod 170 and is designed to move valve member 141 in order to form an adjustable throttle point 142 between valve member 141 and valve seat 140. The drive 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, wherein at least two separate signal lines 145, 172 run through the valve rod 170 for the transport of media.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 to the first working chamber 151.A first cavity 173 is formed between the insert element 180 and the valve rod 170, which cavity 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.The signal line for setting the setpoint value 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 member 180 includes a fourth bore 179 and a fifth bore 181 connected thereto, the third bore 178 being connected to the fourth bore 179. The fifth bore 181 opens into the first cavity 173 which is bounded 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 value can be adjusted with respect to the setpoint value spring 190 by means of external pressurization via the external connection 210. The sliding seals are sealed in addition to the valve rod 170 so that fluid cannot enter other areas of the regulator 300.The first cavity 173 has a length parallel to the longitudinal axis 200. The length corresponds to at least a length of the distance between a first position and a second position along the longitudinal axis 170.The valve member 141 and the valve rod 170 are variably displaceable between the first position and the second position for setting the throttle point 142 along the longitudinal axis 200.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 accomplished by moving the valve rod 170 in a direction to open the valve.In the second position, the regulator 300 is fully closed, which completely stops the flow of the medium or process fluid through the regulator 300. This is accomplished by moving the valve rod 170 in the opposite direction to close the regulator 300. In the second position, the valve member 140 engages the valve seat 140 such that the inlet chamber 120 is separated from the outlet chamber 130.The controller 300 may also be operated in positions between these two extremes to regulate the flow of the medium or process fluid. The precise position of controller 300 in this range is determined by the need for flow control in the specific application.Between the valve member 141 and the insert element 180, a second cavity 143 is formed for relieving the load 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.The external terminal 210 is connected to the first cavity 173.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 likewise connected to the second cavity 143, so that there is a connection of a diaphragm 310 in the diaphragm region between the inlet chamber 120 and the outlet chamber 130 and the second working chamber 152.The orifice region is a second throttle point provided in the regulator 300. The throttle point can be formed by a diaphragm 310 arranged between the inlet chamber 120 and the outlet chamber 130. The aperture 310 can be adjusted or changed in its position between the inlet chamber 120 and the outlet chamber 130 by means of a set screw arranged on the aperture 310. By adjusting the diaphragm 310 via 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.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.A set point spring 190 is arranged between the insert element 180 and the diaphragm of the diaphragm drive 150.The set point spring 190 is supported against the insert member 180 on a first side. On an opposite second side, the setpoint spring 190 is mounted with an adapter element opposite a pressing sleeve 154. The pressing sleeve 154 is fixed to the valve rod 170. The setpoint spring 190 serves to bias the diaphragm drive 150 to a setpoint to be regulated. The effective diaphragm area of diaphragm 153 is subject to the diaphragm pressure between inlet chamber 120 and outlet chamber 130 and acts against setpoint spring 190. A force equilibrium is established between the setpoint spring 190 and the signal pressure by the setpoint spring prestressing to a greater or lesser extent and thus moving the valve member 141 into different positions. This sets a uniform volume flow in the outlet chamber 130.In the regulator 300, the effective diaphragm area refers to the area of the diaphragm 153 that is actually used for pressure regulation. Diaphragm 153 is an essential part of the regulator and responds to changes in pressure in the system.The diaphragm is typically loaded by the system pressure in the first working chamber on the one hand and a reference or control pressure which can be supplied via the external connection 210 on the other hand. The size of the effective diaphragm area may affect the sensitivity and response of controller 300.In an advantageous embodiment, the diaphragm drive 150 is arranged rotatably with respect 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 with respect to one another can be arbitrary. The diaphragm drive 150 or the drive housing 111 of the diaphragm drive 150 is designed to be connectable to the valve housing 110 by means of a union nut 220 in any angular position. When installation is to be carried out in existing pipeline networks, the various connections of the regulator 300 can be rotated with respect to one another.FIG. 3 shows all the features of FIG. 1 and additionally the signal flow paths 240, 250, 260 of a medium which are guided through the regulator 100, which is designed as a pressure regulator. A first signal flow path 240 extends through the second signal line 145 into the second cavity 143 for relieving a valve member 141 from an inlet pressure in an inlet chamber 120. A second signal flow path 250 flows via the inlet chamber 120 through the orifice 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 into the first working chamber 151 via the first transverse bore 171 and the first signal line 172. A third signal flow path 260 extends over the external control terminal 210. A medium can be supplied or discharged via this in order to set a setpoint value 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.FIG. 4 shows all the features of FIG. 2 and additionally the signal flow paths 320, 330 of a medium running through the regulator 300 which is designed as a volume flow regulator. A fourth signal flow path 320 runs via an inlet chamber 120 and via a throttle point 142, which is narrowed by a diaphragm 310, into the second signal line 145 in the valve rod 170 as far as 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 input via an external terminal 210. The external terminal 210 is connected to a signal line 174. The signal line 174 opens into a third bore 178. The third bore 178 opens out into an annular channel 230. The annular channel 230 is likewise 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.The invention is not limited to the described exemplary embodiments. Within the scope of the invention, all features described and / or shown can be combined with one another as desired, unless stated otherwise.LIST OF REFERENCE CHARACTERS100 Regulator 110 Valve housing 111 Drive housing 120 Inlet chamber 130 Outlet chamber 140 Valve seat 141 Valve member 142 Throttle point 143 Second cavity 144 Second transverse bore 145 Second signal line 146 Third signal line 150 Diaphragm drive 151 First working chamber 152 Second working chamber 153 Diaphragm 154 Pressure sleeve 170 Valve rod 171 First transverse bore 172 First signal line 173 First cavity 174 Control line 176 First bore 177 Second bore 178 Third bore 179 Fourth bore 180 Insert element 181 Fifth bore 190 Setpoint spring 200 Longitudinal axis 210 External connection 220 Union nut 230 Annular channel 240 First signal flow path 250 Second signal flow path 260 Third signal flow path 300 Regulator 310 Orifice 320 Fourth signal flow path 330 Fifth signal flow pathReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 102016120565A1

[0006] EP 2848846B1

[0007]

Claims

A regulator with signal lines and having auxiliary energy (100), 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), as well as a valve seat (140) arranged in the valve housing (110) and arranged between the inlet chamber (120) and the outlet chamber (130), as well as a valve member (141) interacting with the valve seat (140) and a diaphragm drive (150) 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), wherein the diaphragm drive (150) is connected to the valve member (141) via a valve rod (170) and is configured 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), wherein at least two separate signal lines (145, 172) for the media transport run through the valve rod (170).The auxiliary energy-free regulator (100) according to claim 1, characterized in 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).The auxiliary energy-free regulator (100) according to at least one of the preceding claims 1 to 2, characterized in that a first cavity (173) is formed between the insert element (180) and the valve rod (170), which cavity 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).The auxiliary-energyless regulator (100) according to claim 3, characterized in 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).Controller without auxiliary energy (100) according to at least one of the preceding claims, characterized in that a second cavity (143) for relieving 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).The auxiliary power regulator (100) according to claim 5, characterized in that the valve rod (170) comprises a second signal line (145) configured such that the second cavity (143) is connectable to the inlet chamber (120) via the second transverse bore (144) connected to the second signal line (145).Controller without auxiliary energy (100) according to at least one of the preceding claims, characterized in that a setpoint spring (190) is arranged between the insert element (180) and the diaphragm of the diaphragm drive (150).Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized in that the second working chamber (152) is connected to an external connection (210) via a control line (174).The auxiliary powerless regulator (100) according to at least one of the preceding claims 3 to 8, characterized in that the external terminal (210) is connected to the first cavity (173).Regulator without auxiliary energy (100) according to at least one of the preceding claims 5 to 9, characterized in that the second cavity (143) is connected to the second working chamber (152) via a third signal line (146) through the insert element (180).The auxiliary power regulator (100) of claim 10, characterized in that the valve rod (170) is connected to a gate portion between the inlet chamber (120) and the outlet chamber (130) via the second signal line (145), the bore being connected to the second working chamber (152) via the third signal line (146) through the insert member (180).Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized in that the valve member (141) and the valve rod (170) are displaceable along the longitudinal axis between a first position and a second position for setting the throttle point (143).Regulator without auxiliary energy (100) according to at least one of the preceding claims, characterized in that the drive housing (111) is arranged rotatably with respect to the valve housing (110).Regulator without auxiliary energy (100) according to Claim 13, characterized in that an annular channel (230) is arranged between the drive housing (111) and the valve housing (110).Regulator without auxiliary energy (100) according to at least one of claims 13 or 14, characterised in 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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