Field device and fluid assembly

Abstract

The utility model relates to field device and fluid assembly. Field device (10), especially valve or fluid sensor includes electronic unit (12), fluid unit (14) and the at least one heat exchanger unit (16) of arrangement between electronic unit (12) and fluid unit (14). Heat exchanger unit (16) includes the heat exchanger room (24) with medium inlet (20) and medium outlet (22) and at least one flow guide element (26) of arrangement in heat exchanger room (24), at least one flow guide element (26) is configured to guide heat transfer medium from inlet (20) to outlet (22). At least one flow guide element (26) includes central hub (42) and at least one baffle (44) extending from hub (42) in radial direction, wherein baffle (44) extends along the central axis (A) of flow guide element (26).

Description

Technical Field

[0001] This invention relates to field devices for fluid applications, particularly valves or fluid sensors, and fluid assemblies comprising at least two field devices. Background Technology

[0002] Field devices for fluid applications typically include a fluid unit through which fluid flows and an electronic unit that houses electronic components such as circuit boards, sensors, and actuators.

[0003] In some applications, the fluid flowing through the fluid unit has very low or very high temperatures, such as -140°C or +180°C. Both extremely high and extremely low temperatures are problematic because the electronic unit may be exposed to these temperatures, which could damage the electronic components, for example, due to overheating or condensation inside the electronic unit.

[0004] For these reasons, in applications involving fluids with very high or very low temperatures, the electronic units are typically arranged at a large distance from the fluid units so that the electronic units are not affected by extreme temperatures.

[0005] However, this solution is disadvantageous because it requires additional space.

[0006] Therefore, the purpose of this invention is to provide an optimized field device suitable for extreme temperature applications. Utility Model Content

[0007] According to this invention, the problem is solved by a field device, particularly a valve or fluid sensor, comprising an electronic unit, a fluid unit, and at least one heat exchanger unit disposed between the electronic unit and the fluid unit. The heat exchanger unit includes a heat exchanger chamber having a medium inlet and a medium outlet, and at least one flow guiding element disposed within the heat exchanger chamber, the at least one flow guiding element being configured to guide the heat transfer medium from the inlet to the outlet. The at least one flow guiding element includes a central hub and at least one baffle extending radially from the hub, wherein the baffle extends along the central axis of the flow guiding element.

[0008] The function of a heat exchanger unit is to prevent excessively hot fluids from reaching the electronic components of the electronic unit. In other words, the heat exchanger unit acts as a thermal barrier, preventing fluids of extreme temperatures from reaching and damaging the electronic unit. If the fluid has a low temperature, the heat exchange medium is cooled within the heat exchanger unit, thereby heating the thermal barrier and preventing the low temperature from being transferred to the electronic unit. If the fluid has a high temperature, the heat exchange medium is heated within the heat exchanger unit, thereby dissipating heat from the thermal barrier and preventing the high temperature from being transferred to the electronic unit.

[0009] The design of flow guiding elements within the heat exchanger chamber, particularly the form of baffles, improves heat transfer efficiency. More specifically, at least one baffle provides a structured flow path that allows the heat transfer medium to circulate optimally within the heat exchanger chamber, thereby promoting effective heat dissipation and temperature regulation.

[0010] Because of the heat exchanger unit, the field device has a compact structure and therefore requires less installation space compared to field devices that prevent temperature damage by increasing the distance between the fluid unit and the electronic unit.

[0011] Field equipment can be valves with manual, electromagnetic, electric, or pneumatic drive units.

[0012] In the case of sensors, field devices include, for example, level sensors, pH sensors, density sensors, or flow meters.

[0013] The heat transfer medium can be air, water, oil, salt water, or any other suitable liquid or gas.

[0014] In one respect, the medium inlet and medium outlet are arranged at a certain distance from each other about the central axis of the flow guiding element. This ensures effective heat exchange.

[0015] For example, at least one baffle is inclined relative to the central axis, i.e., the baffle extends along the central axis of the flow guide element and in the circumferential direction of the flow guide element, resulting in an extended flow path for the heat transfer medium. The extended flow path allows for more efficient heat exchange because the heat transfer medium remains in contact with the heat transfer surface for a longer period of time, thereby improving the system efficiency and overall thermal performance.

[0016] In an alternative embodiment, at least one baffle extends parallel to the central axis. A baffle extending parallel to the central axis results in a simple design that is easy to manufacture. For example, the flow guiding element can be manufactured as an extruded profile.

[0017] According to one embodiment, the flow guiding element has exactly one baffle extending along a helical path, specifically wherein the helical path comprises a plurality of helical turns. The helical path of the baffle results in a particularly long flow path, which induces significant mixing and turbulence within the heat transfer medium, which is beneficial to the heat exchange process. By creating a complex flow pattern, the temperature of the heat transfer medium is distributed more uniformly, thereby improving the efficiency of heat transfer. With the aid of the helical flow path, the overall size of the heat exchanger unit can be reduced while still achieving a high level of heat transfer.

[0018] In an alternative implementation, the flow guiding element has several baffles parallel to each other. By guiding the heat exchanger medium to flow across multiple parallel surfaces, heat exchange between the flow guiding element and the heat transfer medium can be more efficient. Each baffle surface provides additional surface for transferring heat between the heat transfer medium and the flow guiding element, thereby improving the overall thermal performance of the device.

[0019] For example, the flow guiding element has the form of a turbine.

[0020] A baffle can have a continuous profile. This continuous profile creates a smooth and uninterrupted flow path for the heat exchanger medium, which helps reduce turbulence caused by abrupt changes in geometry. This ensures stable and predictable movement of the heat exchanger medium.

[0021] In the case of several baffles, the baffles can have the same length in the radial direction; in particular, all baffles are identical. Identical baffles with the same radial length promote uniform flow throughout the heat exchanger unit, thereby reducing the risk of hot spots and ensuring consistent heat transfer across the equipment.

[0022] In alternative implementations, the baffles may have different profiles, different thicknesses, different lengths, and / or extend in different directions.

[0023] According to one aspect, the heat exchanger unit includes at least two coaxially arranged flow guiding elements, wherein the flow guiding elements are arranged at a distance relative to each other. Compared to a single flow guiding element having the same heat exchange surface, at least two flow guiding elements can have a reduced length. This allows for more flexible positioning of the flow guiding elements compared to a single flow guiding element.

[0024] A heat exchanger unit may include a shell in which a heat exchanger chamber is formed, wherein the inner wall of the shell is rotationally symmetrical about a central axis. This symmetrical design of the inner wall allows for flexible orientation of the shell without compromising performance. More specifically, the positions of the inlet and outlet are variable and can be adapted to the process environment.

[0025] For example, the housing is configured to be mounted in any rotational position around its central axis. In other words, the housing's rotational position is flexible across its entire 360° range. This means the housing can be positioned and secured in the desired orientation without affecting the functional alignment or operation of the fluid unit.

[0026] According to one embodiment, the housing has a metal insert that includes the walls of the heat exchanger chamber. For example, all surfaces of the housing that come into contact with the heat transfer medium are made of metal. The metal insert can withstand high pressure and thermal stress, thereby improving the reliability and lifespan of the field equipment.

[0027] Metal inserts can be surrounded by different materials.

[0028] For example, the housing may include insulating material surrounding the metal insert. The insulating material, for example, is made of plastic and can be attached to the metal insert via overmolding. The insulating material provides insulation and also results in reduced weight and production costs.

[0029] The housing can include two separate components, which reduces the complexity of the separate components.

[0030] The shell can be separated in a plane perpendicular to the central axis or in a plane parallel to the central axis.

[0031] For example, the housing and / or flow guiding element are constructed as clamps. In this case, the housing and corresponding flow guiding element are separated in a plane parallel to the central axis, such as in a plane including the central axis. A clamp-type housing and / or flow guiding element can be retrofitted to any existing field equipment. For a complete retrofit solution, both the housing and flow guiding element are preferably constructed as clamps.

[0032] In one embodiment, the housing and / or flow guiding element are 3D printed parts. Complex geometries of the housing and flow guiding element can be achieved through 3D printing. Furthermore, 3D printing is advantageous for small-batch production because it eliminates the need for tooling.

[0033] In the case of 3D printing, the housing and flow guiding elements can be formed integrally, thus enabling particularly easy assembly of the heat exchanger unit due to the reduction in the number of individual parts.

[0034] In an alternative implementation, the heat exchanger unit shares a common housing with the electronic equipment. In this case, a separate heat exchanger housing can be omitted.

[0035] For example, field equipment includes heating and / or cooling elements, particularly wherein the heating or cooling elements are integrated into the housing of a heat exchanger unit. Such heating or cooling elements, which can be heating wires or Peltier elements, provide additional active cooling or heating in addition to providing heat exchange between the flow-guiding element and the heat transfer medium. Therefore, the heat exchange unit can be smaller compared to a heat exchange unit without additional heating and / or cooling elements, which is advantageous in situations with limited installation space.

[0036] According to one embodiment, the field device is a valve and the electronic unit is an actuation unit. The valve includes a rod extending from the actuation unit to a fluid unit and movable between an open position and a closed position by means of the actuation unit. In the open position, fluid flow is allowed through the fluid unit, and in the closed position, fluid flow is blocked. The rod extends through a hub of a flow guide element. By passing the rod through the hub of the flow guide element, a compact structure of the field device can be achieved. Furthermore, the flow guide element can be aligned at the rod during assembly of the field device.

[0037] The field device may include at least one temperature sensor, wherein the temperature sensor is arranged in the heat exchanger unit, preferably in the heat exchanger chamber and / or at the medium inlet or outlet, and / or in or at the electronic unit. The temperature sensor allows for the implementation of a control loop to control the temperature within the heat exchanger unit and, correspondingly, the electronic unit. In response to the output of at least one temperature sensor, the temperature, pressure, and / or flow rate of the heat transfer medium passing through the heat exchanger unit can be adjusted.

[0038] Additionally, the field equipment may include at least one pressure sensor disposed within the heat exchanger chamber. Therefore, the pressure inside the heat exchanger chamber can be controlled to improve the efficiency of the heat exchanger unit.

[0039] Preferably, there are at least two pressure sensors, by means of which the pressure difference of the heat transfer medium between the medium inlet and the medium outlet can be detected.

[0040] According to one aspect, the field equipment includes, for example, at least two heat exchanger units arranged above each other. Using at least two heat exchanger units allows for modular design, where more heat exchanger units can be added where better heat dissipation is required. The heat exchanger units are preferably identical; however, in other embodiments, the heat exchanger units may have different designs.

[0041] In cases with more than one heat exchanger unit, a different heat transfer medium can be selected for each heat exchanger unit. Furthermore, the flow rate or temperature of the heat transfer medium can differ in different heat exchanger units.

[0042] According to one aspect, the heat exchanger unit, particularly the housing of the heat exchanger unit, includes a condensate drain section. This allows condensate to be discharged from the heat exchanger unit.

[0043] The target problem is also addressed by a fluid assembly comprising at least two field devices of this invention, wherein the inlets and / or outlets of the at least two field devices are connected to each other. Therefore, the temperature of the assembly can be controlled in a simple manner using only a single flow path. This is advantageous for the energy consumption of the fluid assembly.

[0044] The target technical problem is also addressed by means of field devices, particularly valves or fluid sensors, comprising an electronic unit, a fluid unit, and at least one heat exchanger unit disposed between the electronic unit and the fluid unit. The heat exchanger unit includes a heat exchanger chamber with a medium inlet and a medium outlet, and at least one heat exchanger tube extending from the medium inlet to the medium outlet. The heat exchanger unit with the heat exchanger tube provides a more unique flow path. In this case, a liquid heat transfer medium can be used without excessive sealing of the heat exchanger chamber. Attached Figure Description

[0045] Further features and advantages are described in the following description with reference to the accompanying drawings. In the drawings:

[0046] Figure 1 An embodiment of the field device according to the present invention is shown.

[0047] Figure 2 It shows along Figure 1 The cross section intercepted by line AA in the middle.

[0048] Figure 3 It shows Figure 1 and Figure 2 The first housing part of the heat exchanger unit of the field equipment,

[0049] Figure 4 The second housing portion of the heat exchanger unit is shown.

[0050] Figure 5 It shows crossing Figure 4 The cross-section of the second shell portion,

[0051] Figure 6 The flow guiding element of the heat exchanger unit is shown.

[0052] Figure 7 Shown in side view Figure 6 The flow guiding element,

[0053] Figure 8 The first housing portion of a heat exchanger unit according to different embodiments is shown.

[0054] Figure 9 It shows the relationship with Figure 8 The second housing portion matches the housing portion.

[0055] Figure 10 The invention includes a cross-section through which the present invention is shown. Figure 8 and Figure 9 The cross-section of the field equipment's housing portion.

[0056] Figure 11A field device according to another embodiment of the present invention is shown.

[0057] Figure 12 An alternative flow guiding element for a field device according to the present invention is shown.

[0058] Figure 13 This shows one half of a flow guiding element that comprises two separate components.

[0059] Figure 14 Another alternative flow guiding element is shown.

[0060] Figure 15 Another embodiment of the field device according to the present invention is shown.

[0061] Figure 16 Another embodiment of the field device according to the present invention is shown, and

[0062] Figure 17 A fluid assembly comprising two field devices according to the present invention is shown. Detailed Implementation

[0063] Figure 1 Field device 10 is shown.

[0064] According to Figure 1 In this embodiment, the field device 10 is a valve. However, the field device 10 can also be a fluid sensor, such as a level sensor, pH sensor, density sensor, or flow meter.

[0065] Regardless of the specific implementation, the field device 10 includes an electronic unit 12, a fluid unit 14 in contact with a fluid, and at least one heat exchanger unit 16 disposed between the electronic unit 12 and the fluid unit 14.

[0066] With the help of heat exchanger unit 16, field device 10 is designed for use in situations where the fluid flowing through fluid unit 14 has extreme temperatures, such as -140°C or +180°C.

[0067] Figure 1 An embodiment in which the field device 10 includes a heat exchanger unit 16 is shown; however, there may be more than one heat exchanger unit 16. In this case, the heat exchanger units 12 are arranged above each other.

[0068] The heat exchanger unit 16 includes a housing 18 having a medium inlet 20 and a medium outlet 22 for supplying a heat transfer medium to the heat exchanger unit 16.

[0069] like Figure 1As shown, the medium inlet 20 and the medium outlet 22 are arranged at a certain distance from each other along the axial direction of the field equipment 10.

[0070] In addition to the medium inlet 20 and the medium outlet 22, the housing 18 may also include an outlet for condensate (not shown), especially when air is used as the heat transfer medium.

[0071] As in Figure 2 As can be seen, a heat exchanger chamber 24 is formed in the shell 18. Figure 2 A cross-section through field device 10 is shown. Heat exchanger chamber 24 is a medium chamber because it is filled with heat transfer medium during normal operation.

[0072] A flow guiding element 26 is arranged in the heat exchanger chamber 24, which will be described in further detail below.

[0073] Figure 2 The diagram shows that when the field device 10 is a valve, the electronic unit 12 is the actuating unit, and the valve includes a rod 28 that extends from the actuating unit to the fluid unit 14 and is movable between an open position and a closed position by means of the actuating unit. In the open position, fluid flow is allowed through the fluid unit 14, and in the closed position, fluid flow is prevented from passing through the fluid unit 14.

[0074] Rod 28 extends through guide element 26.

[0075] The closing element 30 is attached to the end of the rod 28 that interacts with the valve seat 32 in the fluid unit 14.

[0076] Figures 3 to 5 Showing more details Figure 1 and Figure 2 The housing of the field equipment 18. Among them, Figure 3 The first housing portion 34 is shown and Figure 4 and Figure 5 The second housing portion 36 is shown, wherein the first housing portion 34 and the second housing portion 36 together define the heat exchanger chamber 24.

[0077] The housing parts 34 and 36 are arranged coaxially with respect to the central axis A of the field equipment 10.

[0078] To achieve a tight seal of the medium, a sealing ring 38 can be installed between housing portion 34 and housing portion 36 (see [link]). Figure 2 ).

[0079] The inner wall 37 of the housing 18 defining the heat exchanger chamber 24 is rotationally symmetrical about the central axis A of the field device 10. Therefore, the rotational position of the housing 18 relative to the fluid unit 14 and the electronic unit 12 is flexible, allowing the media inlet 20 and the media outlet 22 to be positioned flexibly relative to the rotational position.

[0080] The second housing portion 36 includes a central sleeve 40 integrally formed with the housing portion 36. The sleeve 40 is configured to align the flow guiding element 26.

[0081] In addition, the second housing portion 36 also includes a recess 39 for receiving the flow guiding element 26.

[0082] like Figure 2 As depicted, the fluid unit 14 has a collar 41 projecting axially from the fluid unit 14, wherein the housing 18, or more precisely, the post 43 projecting from the second housing portion 36, is received in the collar 41. Thus, the housing 18 is aligned with the fluid unit 14.

[0083] Figure 6 and Figure 7 The flow guiding element 26 of the field device 10 is shown.

[0084] The flow guiding element 26 is arranged in the heat exchanger chamber 24 and configured to guide the heat transfer medium from the medium inlet 20 to the medium outlet 22.

[0085] The heat transfer medium can be air or a liquid medium.

[0086] The flow guiding element 26 has a central hub 42 and at least one baffle 44 extending radially from the hub 42.

[0087] In the assembled state, the central hub 42 is aligned with the sleeve 40.

[0088] In the depicted embodiment, the central hub 42 has a cylindrical shape with a continuous profile. However, in another embodiment, the profile may be different; for example, the central hub 42 may have multiple segments with different diameters.

[0089] Baffle 44 extends along the central axis of the flow guiding element 26, which corresponds to the central axis A of the field device 10.

[0090] exist Figure 6 and Figure 7 In the embodiment depicted, the flow guiding element 26 includes exactly one baffle 44, which is inclined relative to the central axis and extends along a spiral path.

[0091] The spiral path consists of several spiral turns. The number of turns can vary depending on the heat transfer requirements of the heat exchanger unit 16.

[0092] The baffle 44 has a continuous profile; however, in alternative embodiments, the profile may vary.

[0093] Optionally, the field device 10 may include a heating element 46 and / or a cooling element, which may be integrated into the housing 18, such as... Figure 2 It is depicted schematically.

[0094] In addition, the field device 10 may include different types of sensors.

[0095] For example, temperature sensor 48 may be arranged in heat exchanger unit 16 and / or electronic unit 12.

[0096] Alternatively, one or more pressure sensors may be arranged in the heat exchanger chamber 24, but for the sake of simplicity, they are not depicted in the accompanying drawings.

[0097] Figure 8 and Figure 9 A first housing portion 34 and a second housing portion 36 according to another embodiment are shown. Figure 8 and Figure 9 The housing portions 34 and 36 are connected along a plane including the central axis A of the field device 10. In this embodiment, the housing 18 is designed to be clamp-type.

[0098] according to Figure 8 and Figure 9 The shell parts 34 and 36 and according to Figure 3 and Figure 4 Another difference between the housing portions 34 and 36 is that the sleeve 40 is omitted. Therefore, according to Figure 8 and Figure 9 The casing has a simpler design.

[0099] Figure 10 It shows including according to Figure 8 and Figure 9 The housing 18 is a cross-section of the field device 10. The housing 18 has an open side that is closed by the fluid unit 14. In particular, the housing 18 is in contact with the end surface of the fluid unit 14.

[0100] Instead of housing 18, electronic unit 12 is aligned with collar 41 of fluid unit 14.

[0101] Figure 11 Another embodiment of the field device 10 is shown, which is similar to... Figures 1 to 7 The implementation methods described therein are similar.

[0102] according to Figure 11 Field equipment 10 and according to Figures 1 to 7 The difference in this implementation is that the distance between the fluid unit 14 and the heat exchanger chamber 24 is increased. For this purpose, the column 43 protruding from the end face of the housing portion 36 is elongated.

[0103] By increasing the distance between the fluid unit 14 and the heat exchanger chamber 24, heat dissipation can be achieved between the fluid unit 14 and the heat exchanger chamber 24 due to convection.

[0104] Figure 12 A flow guiding element 26 according to a different embodiment is shown, which can also be used in any of the field devices 10 previously described.

[0105] Figure 12 The flow guide element 26 depicted has the shape of a turbine.

[0106] More precisely, the flow guiding element 26 has a number of baffles 44 that are inclined relative to the central axis A and parallel to each other.

[0107] The baffles 44 have the same length in the radial direction. In particular, all baffles 44 are identical. However, in different embodiments not depicted for simplicity, the baffles 44 may have different shapes and / or different lengths.

[0108] Depending on the size of the flow guiding element 26 and the thickness of the baffle 44, the flow guiding element 26 may have up to fifty baffles 44. For example, the flow guiding element 26 may have at least fifteen baffles 44.

[0109] Figure 13 A portion of the flow guiding element 26 is shown, comprising two separate components 45 attached to each other.

[0110] These two separate components 45 can be the same.

[0111] In order to fasten the individual components 45 together, the components 45 have corresponding fastening sections 47.

[0112] In the depicted embodiment, components 45 can be fastened to each other by means of countersunk screws.

[0113] The hub 42 may have a recess 49 on its inner circumference to save material.

[0114] Manufacturing the flow guiding element 26 using two separate components 45 reduces the complexity of the separate components 45. Furthermore, due to the split structure, the flow guiding element 26 is configured to allow the heat exchange unit 16 to be retrofitted to the existing field device 10 in a clamp-on manner.

[0115] Figure 13 The flow guiding element 26 depicted in the image and Figure 12The flow guide element 26 depicted in the application has the same turbine shape; however, all flow guide elements 26 described in this application can be manufactured in the same manner.

[0116] Figure 14 Another flow guiding element 26 is shown, which can also be used in any of the field devices 10 previously described.

[0117] according to Figure 14 The flow guiding element 26 has multiple baffles 44 parallel to the central axis A.

[0118] The baffle 44 has a split section at its free end, which increases the surface area of ​​the baffle 44 and thus facilitates heat transfer. Figure 14 The flow guiding element 26 depicted is suitable for manufacture as an extrusion component.

[0119] Figure 15 Another field device 10 is shown.

[0120] exist Figure 15 In order to show the interior of the heat exchanger unit 16, the second housing portion 36 is not depicted.

[0121] The field device 10 differs from the previously described embodiment in that the heat exchanger unit 16 includes two flow guiding elements 26, which are coaxially arranged at a distance from each other in the direction along the central axis A.

[0122] Therefore, the heat exchanger unit 16 can be adapted to the external geometry of the field device 10. Thus, the heat exchanger unit 16 can be fitted into existing field devices 10.

[0123] exist Figure 15 In the case of the field device 10 described, due to the widened section 52 of the field device 10, the flow guiding element 26 is installed from different sides.

[0124] exist Figure 15 In the middle, the flow guiding element 26 and Figure 14 This corresponds to the flow guiding element 26 depicted herein; however, any flow guiding element 26 previously described is equally applicable. Flow guiding elements 26 of different shapes can also be combined.

[0125] Optionally, one or both of the flow guiding elements 26 may have a chamfer, such as Figure 15 The diagram shows one of the two flow guiding elements 26.

[0126] For example, Figure 16 It shows the relationship with Figure 15 Correspondingly, the field device 10 has flow guiding elements 26 of different shapes, or more precisely, it has flow guiding elements 26 of different shapes. Figure 12 and Figure 13 10. Field equipment for the flow guiding element.

[0127] In another embodiment, which is not depicted for the sake of brevity, at least one heat exchanger tube extending from the medium inlet 20 to the medium outlet 22 may be arranged in the heat exchanger chamber 24.

[0128] In the depicted embodiments, housing portions 34 and 36 are molded parts, such as injection-molded parts.

[0129] However, the housing portions 34 and 36 can also be made as 3D printed parts. The flow guiding element 26 can also be 3D printed. In this case, the flow guiding element 26 can be integrally formed with one of the housing portions 34 and 36.

[0130] In one specific implementation method Figure 8 and Figure 9 The housing portions 34, 36 depicted can be integrally formed with the flow guiding element 26, wherein the flow guiding element 26 is separated along the same plane as the housing 18, such that each housing portion 34, 36 includes a half of the flow guiding element 26. In this embodiment, the entire heat exchanger unit 16 can be designed as a clamp-on type for retrofit solutions.

[0131] In an alternative embodiment, not depicted for brevity, housing 18 may include a metal insert comprising the walls of heat exchanger chamber 24 and insulation material surrounding the metal insert. For example, the insulation material may be made of plastic.

[0132] In another alternative embodiment, the housing 18 may be coated, for example, with silicone or the like.

[0133] Figure 17 A fluid assembly 54 comprising at least two field devices 10 is shown.

[0134] The fluid unit 14 of the field equipment 10 is integrally formed.

[0135] At least two field devices 10 have their media inlets 20 and media outlets 22 arranged such that they can be easily interconnected. More specifically, the outlet 22 of a field device 10 can be connected to the inlet 20 of an adjacent field device 10, such as... Figure 17 As indicated by the dashed line in the middle.

Claims

1. A field device (10), characterized in that, include: An electronic unit (12), a fluid unit (14), and at least one heat exchanger unit (16) disposed between the electronic unit (12) and the fluid unit (14). The heat exchanger unit (16) includes a heat exchanger chamber (24) having a medium inlet (20) and a medium outlet (22) and at least one flow guiding element (26) arranged in the heat exchanger chamber (24), the at least one flow guiding element (26) being configured to guide the heat transfer medium from the inlet (20) to the outlet (22), wherein the at least one flow guiding element (26) includes a central hub (42) and at least one baffle (44) extending radially from the hub (42), wherein the baffle (44) extends along the central axis (A) of the flow guiding element (26).

2. The field device (10) according to claim 1, characterized in that, The at least one baffle (44) extends at an angle relative to or parallel to the central axis (A).

3. The field device (10) according to claim 1, characterized in that, The flow guiding element (26) has exactly one baffle (44) extending along the spiral path.

4. The field device (10) according to claim 3, characterized in that, The spiral path includes several spiral turns.

5. The field device (10) according to claim 1, characterized in that, The flow guiding element (26) has a plurality of baffles (44) that are parallel to each other.

6. The field device (10) according to claim 3, characterized in that, The baffle (44) has a continuous profile, or the plurality of baffles (44) have the same length in the radial direction.

7. The field device (10) according to claim 5, characterized in that, All baffles (44) are the same.

8. The field device (10) according to claim 1, characterized in that, The heat exchanger unit (16) includes at least two coaxially arranged flow guiding elements (26), wherein the flow guiding elements (26) are arranged at a distance relative to each other.

9. The field device (10) according to claim 1, characterized in that, The heat exchanger unit (16) includes a housing (18) in which the heat exchanger chamber (24) is formed, wherein the inner wall of the housing (18) is rotationally symmetrical with respect to the central axis (A).

10. The field device (10) according to claim 9, characterized in that, The housing (18) is configured to be mounted in any rotational position around its central axis.

11. The field device (10) according to claim 9, characterized in that, The housing (18) has a metal insert that includes the wall of the heat exchanger chamber (24).

12. The field device (10) according to claim 9, characterized in that, The housing (18) includes thermal insulation material.

13. The field device (10) according to claim 9, characterized in that, The housing (18) and / or the flow guiding element (26) are configured as clamps.

14. The field device (10) according to claim 9, characterized in that, The housing (18) and / or the flow guiding element (26) are 3D printed parts.

15. The field device (10) according to claim 14, characterized in that, The housing (18) and the flow guiding element (26) are integrally formed.

16. The field device (10) according to claim 1, characterized in that, The field device (10) includes a heating element (46) and / or a cooling element.

17. The field device (10) according to claim 16, characterized in that, The heating element (46) or the cooling element is incorporated in the housing (18) of the heat exchanger unit (16).

18. The field device (10) according to claim 1, characterized in that, The field device (10) is a valve, and the electronic unit (12) is an actuation unit. The valve includes a rod (28) that extends from the actuation unit to the fluid unit (14) and is movable by means of the actuation unit between an open position and a closed position, in which fluid flow is permitted through the fluid unit (14) and in which fluid flow is prevented through the fluid unit (14) in the closed position, wherein the rod (28) extends through the hub (42) of the flow guide element (26).

19. The field device (10) according to claim 1, characterized in that, The field device (10) includes at least one temperature sensor (48), wherein the temperature sensor (48) is arranged in the heat exchanger unit (16).

20. The field device (10) according to claim 19, characterized in that, The temperature sensor (48) is arranged in the heat exchanger chamber (24) and / or at the medium inlet (20) or the medium outlet (22), and / or in the electronic unit (12) and / or at the electronic unit (12).

21. The field device (10) according to claim 1, characterized in that, The field device (10) includes at least one pressure sensor arranged in the heat exchanger chamber (24).

22. The field device (10) according to claim 1, characterized in that, The heat exchanger unit (16) includes a condensate discharge section.

23. A fluid assembly (54), characterized in that, The fluid assembly (54) includes at least two field devices (10) according to claim 1, wherein the inlets (20) and / or outlets (22) of at least two of the field devices (10) are connected to each other.

24. A field device (10), characterized in that, include: An electronic unit (12), a fluid unit (14), and at least one heat exchanger unit (16) disposed between the electronic unit (12) and the fluid unit (14). The heat exchanger unit (16) includes a heat exchanger chamber (24) having a medium inlet (20) and a medium outlet (22) and at least one heat exchanger tube extending from the medium inlet (20) to the medium outlet (22).

25. The field device (10) according to claim 1 or claim 24, characterized in that, The field device (10) is a valve or a fluid sensor.

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