Assembled heat exchange device with multiple heat exchange units

Abstract

The utility model belongs to the technical field of heat exchangers, particularly relates to an assembly type heat exchange device with multiple heat exchange units, and solves the problems that the heat exchange units are inconvenient to connect, disassemble and assemble and unstable in connection. The assembly type heat exchange device with the multiple heat exchange units comprises at least two plate-shaped heat exchange units which are arranged in a stacked mode, each heat exchange unit comprises a dry cooler and a condenser, mounting supports are arranged on collecting pipes of the heat exchange units, the mounting supports on the same side are detachably fixed to a connecting plate, and the connecting plates are connected with the heat exchange units. And a reinforcing structure is detachably arranged between the side plates of the adjacent heat exchange units. The effect that connection between the heat exchange units has flexible detachability and stable strength is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat exchanger technical field, especially relate to a kind of multi-heat exchange unit's assembled heat exchange device. BACKGROUND

[0002] Heat exchanger is a kind of device using microchannel technology to realize temperature control, wherein heat exchange medium flows, and the heat exchange medium exchanges heat with air through flat tube wall in flow process.

[0003] In prior art, to improve the regulation range of heat exchange efficiency, some heat exchange devices are provided with multiple heat exchange units, but in some schemes, each heat exchange unit can be connected by welding connecting plate or adding complex frame, which cannot achieve stable connection and flexible and convenient disassembly. INNOVATION CONTENT

[0004] The utility model aims at the above-mentioned problems existing in prior art, and provides a kind of multi-heat exchange unit's assembled heat exchange device.

[0005] To realize the purpose of the utility model, the following technical solutions can be used:

[0006] A kind of multi-heat exchange unit's assembled heat exchange device, including at least two laminated plate-shaped heat exchange units, the heat exchange unit includes dry cooler and condenser, the manifold of the heat exchange unit is provided with mounting support, the mounting support on the same side is detachably fixed on a connecting plate, and the edge plate between adjacent heat exchange units is detachably provided with reinforcing structure.

[0007] The heat exchange device of the utility model is composed of multiple and various heat exchange units, and by enabling part or all of the heat exchange units, greater heat exchange efficiency regulation range can be achieved, each heat exchange unit is laminated, the manifold of adjacent heat exchange units is attached or almost attached, the manifold on the same side is detachably connected to the same connecting plate by mounting support, to achieve the effect of connecting each heat exchange unit as a whole, and the connection has flexible detachability, facilitating assembly, in addition, edge plate is provided between manifold, and reinforcing structure connects the edge plate of adjacent heat exchange units, to further improve the connection strength between heat exchange units.

[0008] In the above multi-heat exchange unit's assembled heat exchange device, the cross section of the connecting plate is L-shaped, including vertical plate and horizontal plate perpendicular to each other, the vertical plate is detachably connected with the side of mounting support away from flat tube, the bottom surface of lower mounting support is detachably connected with the horizontal plate, and the bottom surface and top surface of adjacent mounting support are attached.

[0009] The length of the connecting plate is adapted to the length of the manifold. Its vertical and horizontal plates form an L-shaped structure. The plane of the vertical plate is adapted to the arrangement direction of the heat exchange unit, and the plane of the horizontal plate is adapted to the plane of the plate-shaped heat exchange unit. The mounting bracket is located within the angle between the vertical and horizontal plates, ensuring a stable connection. The open connecting plate facilitates the installation of the heat exchange unit on the upper side. Adjacent mounting brackets are close together, improving the overall integrity.

[0010] In the above-mentioned assembled heat exchange device with multiple heat exchange units, the connecting plate is also provided with an inner folding plate at the angle between the vertical plate and the horizontal plate. The inner folding plate is provided with at least two arc-shaped cuts that are adapted to the outer diameter of the manifold, and the manifold is embedded in the arc-shaped cuts.

[0011] The connecting plate has inner folded plates at both ends, which fit against the end faces of the mounting supports at both ends, providing a positioning effect. The arc-shaped cuts on the inner folded plates match the manifold, and the inner folded plates can conceal the internal mounting supports and other components from both ends, making the overall appearance more aesthetically pleasing. Furthermore, the inner folded plates are integrally formed at the ends of the vertical plate, and their sides are welded to the ends of the horizontal plate. Essentially, the inner folded plates pull the vertical and horizontal plates together, improving the connecting plate's resistance to deformation.

[0012] In the above-mentioned assembled heat exchange device with multiple heat exchange units, an extension plate is provided on the side of the vertical plate away from the horizontal plate. The extension plate is higher than the heat exchange unit and has several connection holes. The two ends of the extension plate are respectively provided with positioning notches and positioning slopes.

[0013] The upper side of the vertical plate extends upward to form an extension plate. This extension plate is provided with connecting holes, allowing it to be installed with a corresponding mounting surface using bolts or other structures. Furthermore, this extension plate can also be used to install heat exchange units. Positioning notches and bevels on the extension plate facilitate assembly personnel in distinguishing the correct orientation, improving assembly speed.

[0014] In the above-mentioned assembled heat exchange device with multiple heat exchange units, the dry cooler is located on the side near the horizontal plate, and its manifold is provided with a first adapter extending towards the surface of the horizontal plate. The first adapter is provided with a quick connector for connecting the inlet and outlet liquid pipes, and the horizontal plate is provided with a clearance hole for the first adapter to pass through. The condenser is located on the side away from the horizontal plate, and its manifold is provided with a second adapter extending away from the surface of the horizontal plate. The second adapter is connected to the inlet and outlet pipes. A gap is formed between the vertical plate and the manifold.

[0015] The dry cooler connects to the inlet and outlet liquid pipes via a first adapter and quick-connect fittings, allowing the corresponding heat exchange medium to enter or exit the manifold. The quick-connect fittings facilitate rapid connection and disassembly. Clearance holes on the horizontal plate allow space for the first adapter located at the bottom of the manifold. The condenser connects to the inlet and outlet pipes via a second connector, similarly for the input and output of the heat exchange medium. Furthermore, the vertical plate and the manifold are not directly in contact; the gap between them provides space for the mounting bracket and also cushions impacts, preventing damage from direct impact to the manifold.

[0016] Preferably, the quick connector includes a threaded connector, which has external threads at both ends and a hexagonal portion in the middle. The inner end of the threaded connector engages with the internal thread of the first adapter seat through the external thread.

[0017] In the above-mentioned assembled heat exchange device with multiple heat exchange units, the mounting support is U-shaped, including an arc-shaped side with an inner diameter adapted to the outer diameter of the manifold, and a straight side opposite to the arc-shaped side. The arc-shaped side is attached to the outer wall of the manifold and welded together; the straight side is attached to the vertical plate of the connecting plate and connected by bolts or rivets.

[0018] The mounting bracket is recessed into an arc shape on one side near the manifold, forming an arc-shaped side. This arc-shaped side is attached to the manifold and welded in place, providing good connection strength. The straight side on the other side is parallel to the vertical plate of the connecting plate, ensuring smooth fit between the two. The connection between the straight side and the connecting plate can be achieved through bolts, rivets, or other feasible structures. Self-drilling screws are preferred for easy assembly and disassembly.

[0019] In the above-mentioned assembled heat exchange device with multiple heat exchange units, the mounting support includes a straight connecting part that connects the arc-shaped side and the straight side, and the straight connecting parts on opposite sides of adjacent mounting supports are in contact with each other; a reinforcing rib parallel to the straight connecting part is provided between the arc-shaped side and the straight side; the straight connecting part is provided with a zigzag, wavy, or annular concave-convex positioning surface, and adjacent concave-convex positioning surfaces cooperate with each other.

[0020] The straight connecting parts, curved sides, and the connection of the straight sides form a similar rectangular shape. The straight connecting parts are perpendicular to the straight sides, ensuring that adjacent straight connecting parts of adjacent mounting supports can fit together smoothly, improving the overall integrity of the connection between heat exchange units. The reinforcing ribs inside the mounting supports improve their resistance to deformation. In addition, the concave-convex positioning surfaces between adjacent straight connecting parts have a positioning and anti-displacement effect, improving assembly efficiency and assembly speed.

[0021] In the above-mentioned assembled heat exchange device with multiple heat exchange units, the reinforcing structure includes a side plate disposed on the side plate of the heat exchange unit. The two ends of the side plate are connected to the manifold, and the outer side surface is in contact with the side plate. The side plate and the side plate are fixedly connected by a rivet structure and / or a bolt structure.

[0022] The width of the side plate is more than twice the width of the edge plate. The edge plates on the same side are connected to the same side plate, so that the heat exchange units can be connected into one unit through the edge plates. The specific connection can be achieved by means of rivet structure, bolt structure, etc., to ensure flexible disassembly.

[0023] In the above-mentioned assembled heat exchange device with multiple heat exchange units, the side plate is provided with herringbone-shaped docking parts at both ends. The docking parts include clearance arc openings located on both sides and adapted to the outer diameter of the manifold. The docking parts extend between two adjacent manifolds.

[0024] The ends of the side plates have quarter-circle arc-shaped relief openings on both sides. The manifolds are located within these relief openings, meaning the middle protruding part of the joint extends between the two manifolds. This results in better overall integration and a more aesthetically pleasing appearance when viewed from the direction of the flat tube arrangement. Of course, when there are three or more heat exchange units, the number of these relief openings will correspond, with the two on the sides being quarter-circles and the middle one being a half-circle.

[0025] In the above-mentioned assembled heat exchange device with multiple heat exchange units, both the dry cooler and the condenser include two parallel manifolds. Two strip-shaped side plates are connected between the manifolds, and several parallel flat tubes are distributed between the two side plates. The angle between the flat tubes and the manifolds is 90 degrees or less. The reinforcing structure connects adjacent side plates. The end of the manifold of the dry cooler is provided with a discharge valve seat that communicates with the manifold chamber. A plug is detachably provided on the discharge port of the discharge valve seat.

[0026] The dry cooler and condenser have similar main structures, both consisting of manifolds and flat tubes. Microchannels are formed within the flat tubes, communicating with the manifold's collection chamber. The corresponding heat exchange medium communicates between the collection chamber and the microchannels, allowing heat exchange with air through the flat tube walls. Side plates are installed on the outer side of the flat tube assembly, connected at both ends to the manifolds, providing good structural strength and protecting the flat tubes. The reinforced structure is achieved by connecting adjacent heat exchange units with the side plates. A discharge channel is formed in the discharge valve seat on the manifold of the dry cooler, used for venting or draining liquid. The discharge port of the discharge channel is sealed by a plug, and the connection between the plug and the discharge port is flexible and detachable. The flat tubes and manifolds can be installed vertically (90 degrees, resembling a rectangle) or at an angle less than 90 degrees (resembling a parallelogram), adapting to different installation scenarios. Of course, the side plates are parallel to the flat tubes.

[0027] As an optimization, the plug is T-shaped, comprising an integrally connected large-end screwing part and a round rod part. The round rod part engages with the internal thread in the discharge port through its threaded section. The round rod part includes a threaded section at the front end and a reduced-diameter section at the rear end. The side wall of the reduced-diameter section is provided with an external air pressure balance hole, and the end face of the threaded section is provided with an internal air pressure balance hole. The internal air pressure balance hole and the external air pressure balance hole are connected to form an air pressure balance channel. The outer diameter of the threaded section is adapted to the inner diameter of the discharge port, but is larger than the outer diameter of the reduced-diameter section. The inner end face of the large-end screwing part is provided with an annular groove, and a sealing ring is provided in the annular groove. The sealing ring is in contact with the end face of the discharge valve seat.

[0028] The plug resembles a bolt, with a T-shaped axial cross-section. The threaded section of the round rod engages with the threaded outlet, ensuring flexible disassembly. Furthermore, to enable rotation of the plug, the large-end screwing part is hexagonal, allowing rotation using a wrench or screwdriver. The front half of the round rod is threaded, while the rear half is a reduced-diameter section. An annular gap forms between the reduced-diameter section and the outlet. A pressure balance channel connects the side wall of the reduced-diameter section and the front end face of the threaded section, i.e., connecting the annular gap and the collecting cavity. This allows air to enter and exit through the pressure balance channel when the plug is screwed in or out, especially before the inner end face of the large-end contactes with the end face of the tubular base, achieving internal and external pressure balance and facilitating disassembly and assembly. Specifically, the side wall of the reduced-diameter section has an external pressure balance hole, and the end face of the threaded section has an internal pressure balance hole. The internal and external pressure balance holes connect to form the pressure balance channel. A sealing ring is provided on the inner side of the large-end screwing part. This sealing ring is in close contact with the end face of the discharge valve seat to achieve circumferential sealing between the discharge valve seat and the large-end screwing part.

[0029] Compared with the prior art, the present invention has the following main advantages:

[0030] 1. This heat exchange device consists of multiple heat exchange units. By activating some or all of the heat exchange units, a wider range of heat exchange efficiency can be achieved. The heat exchange units are stacked, and the manifolds of adjacent heat exchange units are in contact or almost in contact. The manifolds on the same side are detachably connected to the same connecting plate through mounting supports, achieving the effect of connecting all heat exchange units into a whole. Moreover, this connection has flexible detachability and is convenient for assembly. In addition, side plates are provided between the manifolds to strengthen the connection between adjacent heat exchange units and further improve the connection strength between heat exchange units.

[0031] 2. The vertical and horizontal plates of the connecting plate form an L-shaped structure. The mounting supports are located within the angle between the vertical and horizontal plates, ensuring a stable connection. The open design of the connecting plate facilitates the installation of the heat exchange unit on the upper side. Adjacent mounting supports are close together, improving the overall integrity.

[0032] 3. The connecting plate has inner folding plates at both ends. These inner folding plates are attached to the end faces of the mounting supports at both ends, which has a positioning effect. The arc-shaped cut on the inner folding plate matches the manifold. The inner folding plates can cover the internal mounting supports and other components from both ends, making the overall appearance more aesthetically pleasing.

[0033] 4. The upper side of the vertical plate extends upward to form an extension plate. This extension plate is provided with connecting holes, which can be used for installation with the corresponding mounting surface via bolts or other structures. In addition, this extension plate can also be used to install heat exchange units. The positioning notches and positioning bevels on the extension plate make it easier for assembly personnel to distinguish the front and back, improving the assembly speed.

[0034] 5. The vertical plate and the manifold are not directly attached to each other. The gap between them provides space for the installation of the support and also buffers the impact, preventing direct impact on the manifold and damage.

[0035] 6. The two sides of the end of the side plate are formed with a quarter-circle arc relief opening. The manifold is located in the relief arc opening, that is, the middle protruding part of the joint extends into the two manifolds, so that when viewed from the arrangement direction of the flat tubes, it has better overall integrity and is more beautiful. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 provided by this utility model;

[0037] Figure 2 yes Figure 1 Enlarged detail view of point A (end not shown);

[0038] Figure 3 This is a right-side view of Embodiment 1 provided by this utility model;

[0039] Figure 4 This is a schematic diagram of the structure of the connecting plate provided by this utility model;

[0040] Figure 5 This is a structural schematic diagram of two adjacent mounting supports provided by this utility model;

[0041] Figure 6 This is a schematic diagram of the structure of the plug provided by this utility model.

[0042] In the diagram, the components are: 1. Heat exchange unit; 2. Dry cooler; 3. Condenser; 4. Manifold; 5. Mounting support; 6. Connecting plate; 7. Side plate; 8. Reinforcing structure; 9. Vertical plate; 10. Horizontal plate; 12. Flat tube; 13. Inner fold plate; 14. Arc-shaped cut; 15. Extension plate; 16. Connecting hole; 17. Positioning notch; 18. Positioning bevel; 19. First adapter seat; 20. Quick connector; 21. Clearance hole; 22. Second adapter seat; 23. Inlet / outlet pipe; 24. Arc-shaped side; 25. Straight side; 26. Straight connecting part; 27. Reinforcing rib; 28. Side plate; 29. ​​Butt joint; 30. Clearance arc opening; 31. Discharge valve seat; 32. Plug; 33. Large end screwing part; 34. Round rod part; 35. Threaded section; 36. Reduced diameter section; 37. External air pressure balance hole; 38. Internal air pressure balance hole; 39. Air pressure balance channel; 40. Annular groove. Detailed Implementation

[0043] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0044] Example 1

[0045] Specific implementation examples Figures 1-6 As shown, this multi-heat exchange unit assembly heat exchange device includes two stacked plate-shaped dry coolers 2 and condensers 3. The manifold 4 of the heat exchange unit 1 is provided with a mounting support 5. The mounting support 5 on the same side is detachably fixed to a connecting plate 6. A reinforcing structure 8 is detachably provided between the side plates 7 of adjacent heat exchange units 1.

[0046] Specifically, this heat exchange device consists of two heat exchange units 1 of different types. By activating some or all of the heat exchange units 1, a wider range of heat exchange efficiency can be achieved. The heat exchange units 1 are stacked, and the manifolds 4 of adjacent heat exchange units 1 are in contact or almost in contact. The manifolds 4 on the same side are detachably connected to the same connecting plate 6 through the mounting brackets 5, achieving the effect of connecting each heat exchange unit 1 into a whole. Moreover, this connection has flexible detachability and is convenient for assembly. In addition, side plates 7 are provided between the manifolds 4, and the reinforcing structure 8 connects the side plates 7 of adjacent heat exchange units 1, further improving the connection strength between the heat exchange units 1.

[0047] like Figure 1 , 2As shown in Figure 4, the connecting plate 6 has an L-shaped cross-section, including a vertical plate 9 and a horizontal plate 10 that are perpendicular to each other. The vertical plate 9 is detachably connected to the side of the mounting support 5 away from the flat tube 12. The bottom surface of the mounting support 5 located below is detachably connected to the horizontal plate 10, and the bottom and top surfaces of adjacent mounting supports 5 are in contact. The connecting plate 6 also has inner folded plates 13 located at the angle between the vertical plate 9 and the horizontal plate 10 at both ends. The inner folded plates 13 have two arc-shaped cuts 14 that are adapted to the outer diameter of the manifold 4, and the manifold 4 is embedded in the arc-shaped cuts 14. An extension plate 15 is provided on the side of the vertical plate 9 away from the horizontal plate 10. The extension plate 15 is higher than the heat exchange unit 1 and has several connection holes 16. The two ends of the extension plate 15 are respectively provided with positioning notches 17 and positioning slopes 18.

[0048] Specifically, the length of the connecting plate 6 is aligned with the length of the manifold 4. Its vertical plate 9 and horizontal plate 10 form an L-shaped structure. The plane of the vertical plate 9 aligns with the arrangement direction of the heat exchange unit 1, and the plane of the horizontal plate 10 aligns with the plane of the plate-shaped heat exchange unit 1. The mounting supports 5 are located within the angle between the vertical plate 9 and the horizontal plate 10, ensuring a stable connection. The open design of the connecting plate 6 facilitates the installation of the upper heat exchange unit 1. Adjacent mounting supports 5 are in contact, improving overall integrity. Inner folding plates 13 are provided at both ends of the connecting plate 6. These inner folding plates 13 are in contact with the end faces of the mounting supports 5 at both ends, providing a positioning effect. The arc-shaped cutouts 14 on the inner folding plates 13 match the manifold 4. The inner folding plates 13 can conceal the internal mounting supports 5 and other components from both ends, making the overall appearance more aesthetically pleasing. Furthermore, the inner folding plates 13 are integrally formed at the ends of the vertical plate 9, and their sides are welded to the ends of the horizontal plate 10. The inner folding plate 13 effectively pulls the vertical plate 9 and the horizontal plate 10 together, increasing the deformation resistance of the connecting plate 6. The upper side of the vertical plate 9 extends upward to form an extension plate 15. This extension plate 15 has connecting holes 16, allowing it to be installed with the corresponding mounting surface using bolts or other structures. Furthermore, the extension plate 15 can also be used to install the heat exchange unit 1. The positioning notch 17 and positioning bevel 18 on the extension plate 15 facilitate assembly personnel in distinguishing the front and back, improving assembly speed.

[0049] like Figure 1 , 2As shown in Figure 4, the dry cooler 2 is located on the side near the horizontal plate 10, and its manifold 4 is provided with a first adapter seat 19 extending towards the surface of the horizontal plate 10. The first adapter seat 19 is provided with a quick connector 20 for connecting the inlet and outlet liquid pipes. The quick connector 20 includes a stainless steel threaded connector with external threads at both ends and a hexagonal part in the middle. The inner end of the threaded connector engages with the internal thread of the first adapter seat 19 through the external thread. The horizontal plate 10 is provided with a clearance hole 21 for the first adapter seat 19 to pass through. The condenser 3 is located on the side away from the horizontal plate 10, and its manifold 4 is provided with a second adapter seat 22 extending away from the surface of the horizontal plate 10. The second adapter seat 22 is connected to the inlet and outlet pipes 23. A gap is formed between the vertical plate 9 and the manifold 4.

[0050] Specifically, the dry cooler 2 is connected to the inlet and outlet liquid pipes via the first adapter 19 and quick connector 20, for the corresponding heat exchange medium to be input into or output from the manifold. The quick connector 20 allows for quick connection with the inlet and outlet liquid pipes, facilitating easy assembly and disassembly. Its stainless steel material also makes it more robust, durable, and resistant to corrosion. The clearance hole 21 on the horizontal plate 10 allows space for the first adapter 19 located at the bottom of the manifold 4. The condenser 3 is connected to the inlet and outlet pipes 23 via the second connector 22, similarly for the input and output of the heat exchange medium. Furthermore, the vertical plate 9 and the manifold 4 are not directly attached; the gap between them provides space for the installation support 5 and also cushions impacts, preventing damage from direct impact to the manifold 4.

[0051] like Figure 5 As shown, the mounting bracket 5 is U-shaped, including an arc-shaped side 24 with an inner diameter adapted to the outer diameter of the manifold 4, and a straight side 25 opposite to the arc-shaped side 24. The arc-shaped side 24 is attached to the outer wall of the manifold 4 and welded together; the straight side 25 is attached to the vertical plate 9 of the connecting plate 6 and connected by self-drilling screws. The mounting bracket 5 includes a straight connecting part 26 connecting the arc-shaped side 24 and the straight side 25. The straight connecting parts 26 on opposite sides of adjacent mounting brackets 5 are attached together; a reinforcing rib 27 parallel to the straight connecting part 26 is provided between the arc-shaped side 24 and the straight side 25; the straight connecting part 26 is provided with a zigzag-shaped concave-convex positioning surface (not specifically shown in the figure), and adjacent concave-convex positioning surfaces cooperate with each other.

[0052] Specifically, the mounting support 5 has an arc-shaped recess on one side near the manifold 4, forming an arc-shaped side portion 24. This arc-shaped side portion 24 is attached to the manifold 4 and welded in place, providing good connection strength. The straight side portion 25 on the other side is parallel to the vertical plate 9 of the connecting plate 6, ensuring smooth contact between the two. The straight side portion 25 and the connecting plate 6 are fixed together with self-drilling screws, facilitating assembly. The straight connecting portion 26, the arc-shaped side portion 24, and the straight side portion 25 connect to form a similar rectangular shape. The straight connecting portion 26 is perpendicular to the straight side portion 25, ensuring smooth contact between adjacent straight connecting portions 26 of adjacent mounting supports 5, improving the overall integrity of the connection between heat exchange units 1. The reinforcing ribs 27 inside the mounting support 5 improve its resistance to deformation. Furthermore, the concave-convex positioning surfaces between adjacent straight connecting portions 26 have a positioning and anti-displacement effect, improving assembly efficiency and speed.

[0053] like Figure 1 , 2 As shown in Figure 3, the reinforcing structure 8 includes a side plate 28 disposed on the side plate 7 of the heat exchange unit 1. The two ends of the side plate 7 are connected to the manifolds 4, and the outer side surface is in contact with the side plate 28. The side plate 7 and the side plate 28 are fixedly connected by rivets. The two ends of the side plate 28 are provided with herringbone-shaped mating portions 29. The mating portions 29 include relief arc openings 30 located on both sides and adapted to the outer diameter of the manifolds 4. The mating portions 29 extend between two adjacent manifolds 4.

[0054] Specifically, the width of the side plate 28 is greater than twice the width of the side plate 7. The side plates 7 on the same side are connected to the same side plate 28, achieving the effect of connecting each heat exchange unit 1 into a whole through the side plates 7. The specific connection is achieved by rivets, ensuring flexible disassembly. The two sides of the end of the side plate 28 form a quarter-circle relief arc 30. The manifold 4 is located in the relief arc 30, that is, the middle protruding part of the mating part 29 extends into the two manifolds 4, so that from the arrangement direction of the flat tubes 12, it has better overall integrity and is more aesthetically pleasing.

[0055] like Figure 1 , 2As shown in Figures 1 and 3, both the dry cooler 2 and the condenser 3 include two parallel manifolds 4, with two strip-shaped side plates 7 connected between the manifolds 4, and several parallel and spaced flat tubes 12 located between the two side plates 7. The flat tubes 12 are perpendicular to the manifolds 4, and the reinforcing structure 8 connects the adjacent side plates 7. The dry cooler 2 has a discharge valve seat 31 at the end of the manifold 4 that communicates with the manifold cavity. A plug 32 is detachably installed on the discharge port of the discharge valve seat 31. The plug 32 is T-shaped and includes an integrally connected large-end turning part 33 and a round rod part 34. The round rod part 34 engages with the internal thread in the discharge port through its threaded section 35. The round rod part 34 includes a threaded section 35 at the front end and a reduced-diameter section 36 at the rear end. An external air pressure balance hole 37 is provided on the side wall of the reduced-diameter section 36. An internal air pressure balance hole 38 is provided on the end face of the threaded section 35. The internal air pressure balance hole 38 communicates with the external air pressure balance hole 37 to form an air pressure balance channel 39. The outer diameter of the threaded section 35 is adapted to the inner diameter of the discharge port, but is larger than the outer diameter of the reduced-diameter section 36. An annular groove 40 is provided on the inner end face of the large-end turning part 33. A sealing ring is provided in the annular groove 40 and is in contact with the end face of the discharge valve seat 31.

[0056] Specifically, the main structures of the dry cooler 2 and the condenser 3 are similar, both consisting of a manifold 4 and flat tubes 12 in between. Microchannels are formed within the flat tubes 12, communicating with the manifold cavity of the manifold 4. The corresponding heat exchange medium communicates between the manifold cavity and the microchannels, allowing heat exchange with the air through the tube wall of the flat tubes 12. Side plates 7 are provided on the outer side of the flat tube group 12, with both ends connected to the manifold 4, providing good structural strength and protecting the flat tubes 12 in between. The reinforcing structure 8 connects and fixes the two heat exchange units 1 by linking the side plates 7 to each adjacent heat exchange unit 1. A discharge channel is formed in the discharge valve seat 31 on the manifold 4 of the dry cooler 2, which can be used for venting or draining liquid. The discharge port of the discharge channel is sealed by a plug 32, and the connection between the plug 32 and the discharge port is flexible and removable. The plug 32 is similar to a bolt, with a T-shaped axial cross-section. The threaded section 35 of the round rod 34 engages with the thread of the discharge port, ensuring flexible removability. Furthermore, to enable the rotation of the plug 32, the large-end screwing part 33 is hexagonal, allowing the plug 32 to be rotated using a wrench or screwdriver. The front half of the round rod part 34 is a threaded section 35, while the rear half is a reduced-diameter section 36. An annular gap is formed between the reduced-diameter section 36 and the discharge port. The air pressure balance channel 39 connects the side wall of the reduced-diameter section 36 and the front end face of the threaded section 35, i.e., connects the annular gap and the collection cavity. This allows air to enter and exit through the air pressure balance channel 39 when the plug 32 is screwed in or out, especially before the inner end face of the large-end part 33 comes into contact with the end face of the tubular base, achieving an internal and external air pressure balance and facilitating disassembly and assembly. Specifically, the side wall of the reduced-diameter section 36 is provided with an external air pressure balance hole 37, and the end face of the threaded section 35 is provided with an internal air pressure balance hole 38. The internal air pressure balance hole 38 and the external air pressure balance hole 37 are connected to form the air pressure balance channel 39. A sealing ring is provided on the inner side of the large-end turning part 33. The sealing ring is in close contact with the end face of the discharge valve seat 31 to achieve circumferential sealing between the discharge valve seat 31 and the large-end turning part 33.

[0057] Specific working principle: In actual use, when the heat exchange efficiency requirement is small, only the dry cooler 2 can be activated, and the corresponding heat exchange medium flows in the dry cooler 2; when the heat exchange efficiency requirement is large, only or both can be activated, and the corresponding heat exchange medium flows in the condenser 3.

[0058] Example 2

[0059] The working principle of this embodiment is basically the same as that of embodiment 1, except that the angle between the manifold and the flat tube is different.

[0060] In this embodiment, the manifold 4 and the flat tube 12 form an acute angle, that is, the flat tube 12 is obliquely inserted into the manifold 4, forming a shape similar to a parallelogram.

[0061] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A multi-heat exchange unit assembled heat exchange device, comprising at least two stacked plate-shaped heat exchange units (1), characterized in that, The heat exchange unit (1) includes a dry cooler (2) and a condenser (3). The heat exchange unit (1) has a mounting bracket (5) on its manifold (4). The mounting bracket (5) on the same side is detachably fixed to a connecting plate (6). A reinforcing structure (8) is detachably provided between the side plates (7) of adjacent heat exchange units (1).

2. The assembled heat exchange device with multiple heat exchange units according to claim 1, characterized in that, The connecting plate (6) has an L-shaped cross section, including vertical plates (9) and horizontal plates (10) that are perpendicular to each other. The vertical plates (9) are detachably connected to the side of the mounting bracket (5) away from the flat tube (12). The bottom surface of the mounting bracket (5) located below is detachably connected to the horizontal plate (10). The bottom and top surfaces of adjacent mounting brackets (5) are in contact with each other.

3. The assembled heat exchange device with multiple heat exchange units according to claim 2, characterized in that, The connecting plate (6) is also provided with an inner fold plate (13) at the angle between the vertical plate (9) and the horizontal plate (10). The inner fold plate (13) is provided with at least two arc-shaped cuts (14) that are adapted to the outer diameter of the manifold (4). The manifold (4) is embedded in the arc-shaped cuts (14).

4. The assembled heat exchange device with multiple heat exchange units according to claim 2, characterized in that, The vertical plate (9) is provided with an extension plate (15) on the side away from the horizontal plate (10). The extension plate (15) is higher than the heat exchange unit (1). The extension plate (15) is provided with several connection holes (16). The two ends of the extension plate (15) are respectively provided with positioning notches (17) and positioning slopes (18).

5. The assembled heat exchange device with multiple heat exchange units according to claim 2, characterized in that, The dry cooler (2) is located on one side near the horizontal plate (10), and its manifold (4) is provided with a first adapter (19) extending toward the surface of the horizontal plate (10). The first adapter (19) is provided with a quick connector (20) for connecting the inlet and outlet liquid pipes. The horizontal plate (10) is provided with a clearance hole (21) for the first adapter (19) to pass through. The condenser (3) is located on the side away from the horizontal plate (10), and a second adapter (22) extending away from the horizontal plate (10) is provided on its manifold (4), and inlet and outlet pipes (23) are connected to the second adapter (22). A gap is formed between the vertical plate (9) and the manifold (4).

6. The assembled heat exchange device with multiple heat exchange units according to claim 1, characterized in that, The mounting bracket (5) is U-shaped, including an arc-shaped side (24) whose inner diameter is adapted to the outer diameter of the manifold, and a straight side (25) opposite to the arc-shaped side (24). The arc-shaped side (24) is attached to the outer wall of the manifold (4) and welded together. The straight side (25) is attached to the vertical plate (9) of the connecting plate (6) and connected by bolts or rivets.

7. The assembled heat exchange device with multiple heat exchange units according to claim 6, characterized in that, The mounting bracket (5) includes a straight connecting part (26) that connects the arc-shaped side (24) and the straight side (25), and the straight connecting parts (26) on opposite sides of adjacent mounting brackets (5) are in contact with each other; A reinforcing rib (27) parallel to the straight connecting part (26) is provided between the arc-shaped side (24) and the straight side (25). The straight connecting part (26) is provided with a zigzag, wavy, or annular concave and convex positioning surface, and adjacent concave and convex positioning surfaces cooperate with each other.

8. The assembled heat exchange device with multiple heat exchange units according to claim 1, characterized in that, The reinforcing structure (8) includes a side plate (28) disposed on the side plate (7) of the heat exchange unit (1). The two ends of the side plate (7) are connected to the manifold (4), and the outer side is in contact with the side plate (28). The side plate (7) and the side plate (28) are fixedly connected by a rivet structure and / or a bolt structure.

9. The assembled heat exchange device with multiple heat exchange units according to claim 8, characterized in that, The side plate (28) has a herringbone-shaped docking part (29) at both ends. The docking part (29) includes a relief arc (30) located on both sides and adapted to the outer diameter of the manifold (4). The docking part (29) extends between two adjacent manifolds (4).

10. The assembled heat exchange device with multiple heat exchange units according to any one of claims 1-9, characterized in that, The dry cooler (2) and the condenser (3) both include two parallel manifolds (4), two strip-shaped side plates (7) are connected between the manifolds (4), and several parallel flat tubes (12) are located between the two side plates (7). The reinforcing structure (8) connects the adjacent side plates (7). The angle between the flat tubes (12) and the manifolds (4) is 90 degrees or less. The dry cooler (2) has a discharge valve seat (31) at the end of the manifold (4) that communicates with the manifold chamber, and a plug (32) is detachably provided on the discharge port of the discharge valve seat (31).

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