Heat exchange device integrated with multiple heat exchange units

Abstract

The utility model belongs to the technical field of heat exchangers, particularly relates to a heat exchange device integrated with multiple heat exchange units, and solves the problems that the adjustable range of the heat exchange efficiency is small, and the heat exchange units are connected unstably or inflexibly. The heat exchange device integrated with the multiple heat exchange units comprises at least two heat exchange units which are arranged in a stacked mode, each heat exchange unit comprises a plate-shaped dry cooler or condenser, and a detachable fixing structure is arranged between the end portions and / or the side portions of the adjacent heat exchange units. The effects that the adjustable range of the heat exchange efficiency is large, and different heat exchange requirements can be met are achieved, in addition, the heat exchange units are stably connected, and flexible detachability is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and specifically relates to a heat exchange device integrating multiple heat exchange units. Background Technology

[0002] A heat exchanger is a device that uses microchannel technology to achieve temperature control. A heat exchange medium flows through it, and the medium exchanges heat with the air through the flat tube wall during the flow process.

[0003] However, existing heat exchangers often only allow adjustment of heat exchange efficiency by changing the flow rate of the heat exchange medium or the flow rate of the air outside the tubes. This method offers a limited range of adjustable heat exchange efficiency, failing to flexibly adapt to different application scenarios and requirements. To increase the adjustable range of heat exchange efficiency, some heat exchangers may be equipped with multiple sets of different heat exchange units to achieve corresponding goals. However, most heat exchangers lack flexible and convenient connection structures between these units, resulting in inconvenient disassembly and assembly or unstable fixing. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a heat exchange device that integrates multiple heat exchange units.

[0005] To achieve the innovative objectives of this utility model, the following technical solutions can be used:

[0006] A heat exchange device integrating multiple heat exchange units includes at least two heat exchange units stacked together. Each heat exchange unit includes a plate-shaped dry cooler or condenser, and a detachable fixing structure is provided between the ends and / or sides of adjacent heat exchange units.

[0007] This utility model's heat exchange device integrates multiple heat exchange units, including two types: a dry cooler and a condenser. It allows for selective activation of some or all heat exchange units depending on the specific operating environment and heat exchange requirements, facilitating efficient use of heat exchange costs. The detachable fixing structure securely connects to the ends and sides of the heat exchange units, providing a stable and flexible fixation for easy assembly and disassembly. For clarification, "end" refers to the end of the heat exchange unit where the manifold is located, and "side" refers to the end of the manifold.

[0008] In the aforementioned heat exchange device integrating multiple heat exchange units, both the dry cooler and the condenser include two parallel manifolds. Several flat tubes and two side plates are connected between the two manifolds at intervals. The flat tubes are located between the two side plates. The detachable fixing structure is set between two adjacent manifolds and / or between two adjacent side plates. The included angle between the flat tubes and the manifolds is 90 degrees or less.

[0009] Both the dry cooler and the condenser are composed of manifolds, flat tubes, and side plates. The flat tubes and side plates are arranged parallel to each other and connected to the manifolds at both ends. Microchannels are formed inside the flat tubes, which communicate with the collection chambers of the manifolds. The side plates are located on both sides of the flat tube assembly, protecting the flat tubes and achieving a high-strength connection between two manifolds. The detachable fixing structure achieves a fixed connection between heat exchange units by connecting adjacent manifolds and adjacent side plates. The flat tubes and manifolds can be set vertically, with an angle of 90 degrees, similar to a rectangle, or they can be set at an angle of less than 90 degrees, similar to a parallelogram, to adapt to different installation scenarios. Of course, the side plates are parallel to the flat tubes.

[0010] In the aforementioned heat exchange device integrating multiple heat exchange units, the detachable fixing structure includes a side plate located on the side of the heat exchange unit. The side plate and the side plate are fixedly connected by rivets and / or bolts, and the side plate and the side plate are respectively provided with first connecting holes for rivets or bolts to pass through.

[0011] The side plate is located on the side of the edge plate away from the flat tube. Its width is greater than that of the edge plate. The side plate and the edge plate are fixedly connected by rivets or bolts, which allows for quick connection and flexible disassembly.

[0012] In the aforementioned heat exchange device integrating multiple heat exchange units, several vents are arranged along the length of the side plate, and the vents are located between two side plates.

[0013] A vent is provided through the middle of the side plate. The vent is strip-shaped and located between opposite sides of the side plate. Air can enter and exit through the vent, which increases the air flow rate between the flat tubes and improves the heat exchange efficiency. Moreover, the vents are evenly distributed, that is, adjacent vents are connected by a partition strip, which can ensure the structural strength of the side plate.

[0014] In the aforementioned heat exchange device integrating multiple heat exchange units, the detachable fixing structure is respectively set on the first connecting platform and the second connecting platform between the two manifolds. The first connecting platform and the second connecting platform are attached to each other, and the first connecting platform and the second connecting platform are fixed together by bolts.

[0015] A connecting platform is provided on the side of the manifold away from the flat tube. The opposing surfaces of the first and second connecting platforms of the two heat exchange units are flat mating surfaces. The two mating surfaces are tightly attached, and the bolt structure fixes the first and second connecting platforms into one piece, realizing the effect of connecting two sets of heat exchange units from the manifold.

[0016] In the above-mentioned heat exchange device integrating multiple heat exchange units, the cross-section of the first connecting platform is H-shaped, including an arc-shaped part and a straight part. The arc-shaped part is attached to and welded to the manifold.

[0017] The cross-section of the second connecting platform is U-shaped, and an arc-shaped surface is formed on one side. The arc-shaped surface is attached to and welded to the manifold. The bottom surface of the second connecting platform is in close contact with the top surface of the straight part.

[0018] The straight section and the second connecting platform are provided with a second connecting hole, and the bolt structure includes a fixing bolt passing through the second connecting hole, and the front end of the fixing bolt is engaged with a nut.

[0019] The first connecting platform is H-shaped, with the inner diameter of its arc-shaped portion matching the outer diameter of the manifold. The arc-shaped portion fits against the outer wall of the manifold and is fixed as a single structure by welding. The second connecting platform is U-shaped, hollow inside, which is beneficial for weight reduction and material cost reduction. It also makes the side of the second connecting platform away from the first connecting platform flush with the manifold, which is beneficial for fitting against the corresponding mounting plane. The hollow direction of the second connecting platform matches the length direction of the manifold. An arc-shaped surface is formed on its outer side wall, which fits against the outer wall of the manifold. A flat fitting surface is formed on the top surface. The fitting surfaces of the first and second connecting platforms are tightly attached. Fixing bolts pass through the second connecting holes on the two connecting platforms and are tightened with nuts to achieve a fixed connection between the first and second connecting platforms. The fixing bolts can also pass through the corresponding mounting plane to achieve the installation purpose. As an optimization, matching concave and convex surfaces can be provided on the two mating surfaces. The concave and convex parts of the two surfaces fit together perfectly, which has the effect of positioning and anti-slip. The concave and convex parts can be in the form of a broken line cross section, or a wave-shaped cross section, or a complementary annular groove and an annular protrusion.

[0020] In the aforementioned heat exchange device integrating multiple heat exchange units, a tubular support column is horizontally placed inside the second connecting platform. The two ends of the support column abut against the two inner sides of the second connecting platform, and the screw passes through the support column.

[0021] The support column is positioned between the top and bottom surfaces, increasing structural strength and preventing deformation and closure of the top and bottom surfaces when tightening the fixing bolts and nuts. Furthermore, the support column also encloses the screw rods within the second connecting platform, preventing dust and debris from covering them and ensuring that the fixing bolts can be easily tightened.

[0022] In the aforementioned heat exchange device integrating multiple heat exchange units, the manifold of the dry cooler is provided with a discharge valve seat, the discharge valve seat is provided with a discharge channel communicating with the manifold cavity of the manifold, and a plug is detachably provided on the discharge port at the outer end of the discharge channel.

[0023] The manifold of the dry cooler has a discharge channel formed in the discharge valve seat, which can be used for venting or draining liquid. The discharge port of the discharge channel is sealed by a plug, which has flexible and removable connection.

[0024] In the aforementioned heat exchange device integrating multiple heat exchange units, the plug is T-shaped and includes an integrally connected large-head screwing part and a round rod part. The round rod part engages with the internal thread in the discharge port through its threaded section.

[0025] The round rod portion includes a threaded section at the front end and a reduced diameter section at the rear end, and an air pressure balance channel is provided between the side wall of the reduced diameter section and the front end face of the threaded section.

[0026] 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;

[0027] The inner end face of the large-head 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, and / or has an internal hexagonal hole, cross hole, or slotted hole on its outer end face, allowing the plug to be rotated 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., connects 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 head contacts the end face of the tubular base, achieving pressure balance and facilitating disassembly and assembly. Furthermore, an external air pressure balance hole is provided on the side wall of the reduced diameter section, and an internal air pressure balance hole is provided on the end face of the threaded section. The internal air pressure balance hole and the external air pressure balance hole are connected to form an air pressure balance channel. A sealing ring is provided on the inner side of the large-end turning part. The sealing ring is tightly attached to the end face of the discharge valve seat to achieve circumferential sealing between the discharge valve seat and the large-end turning part.

[0029] In the aforementioned heat exchange device integrating multiple heat exchange units, the manifold of the dry cooler is provided with an inlet / outlet pipe connector, the inlet / outlet pipe connector is provided with an inlet / outlet channel communicating with the manifold cavity of the manifold, and the outer end of the inlet / outlet channel is provided with a flange-type quick connector or a chuck-type quick connector for connecting the inlet / outlet liquid pipe; the manifold of the condenser is connected with inlet / outlet pipes.

[0030] The inlet and outlet pipe connectors on the manifold of the dry cooler are connected to the inlet and outlet liquid pipes via quick-connect couplings, enabling quick assembly and disassembly of the inlet and outlet liquid pipes. These quick-connect couplings can be flange-type or chuck-type. Specifically, the flange-type quick-connect coupling is annular, with a mating interface at its bottom. The end of the inlet and outlet pipe connector is inserted into the mating interface and welded in place. The end face of the inlet and outlet pipe connector abuts against the annular stepped surface inside the mating interface. The outer end of the flange-type quick-connect coupling has an annular protrusion that mates with the matching free connector of the inlet and outlet liquid pipes. The flange portion of the flange quick-connect coupling and the flange portion of the free connector are fixed together with bolts, and a sealing ring is provided between the end faces of the flange quick-connect coupling and the free connector.

[0031] Compared with the prior art, the present invention has the following main advantages:

[0032] 1. This heat exchange device integrates multiple heat exchange units, including two types: dry cooler and condenser. It can selectively open some or all of the heat exchange units according to the specific use environment and heat exchange requirements, which is conducive to the efficient use of heat exchange costs. The detachable fixing structure is fixedly connected from the end and side of the heat exchange unit, which is stable and flexible and easy to disassemble and assemble.

[0033] 2. The side plate is located on the side of the edge plate away from the flat tube, and its width is greater than that of the edge plate. The side plate and the edge plate are fixedly connected by rivets or bolts, which allows for quick connection and flexible disassembly. A vent is opened through the middle of the side plate to increase the airflow rate between the flat tubes and improve heat exchange efficiency.

[0034] 3. The first connecting platform is H-shaped, while the second connecting platform is U-shaped. The interior is hollow, which is beneficial for weight reduction and material cost reduction. The mating surfaces of the first and second connecting platforms are in close contact. The fixing bolts pass through the second connecting holes on the two connecting platforms and are tightened with nuts to achieve a fixed connection between the first and second connecting platforms.

[0035] 4. The support column is positioned between the top and bottom surfaces of the second connecting platform, improving structural strength and preventing deformation and closure of the top and bottom surfaces when tightening the fixing bolts and nuts. Furthermore, the support column also encloses the screws within the second connecting platform, preventing dust and debris from covering them and ensuring that the fixing bolts can be easily tightened.

[0036] 5. The plug is similar to a bolt, with a T-shaped axial cross-section. The threaded section of the round rod engages with the threaded outlet, ensuring flexible disassembly. The first half of the round rod is threaded, while the second half is a reduced-diameter section. An annular gap is formed between the reduced-diameter section and the outlet. The air pressure balance channel connects the side wall of the reduced-diameter section and the front end face of the threaded section, i.e., it connects the annular gap and the collection cavity. This allows air to enter and exit through the air pressure balance channel when the plug is screwed in or out, especially before the inner end face of the large head comes into contact with the end face of the tubular base, achieving internal and external air pressure balance and facilitating disassembly and assembly. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 provided by this utility model (vent is not shown);

[0038] Figure 2 This is a side view of Embodiment 1 provided by this utility model;

[0039] Figure 3 yes Figure 1 Enlarged detail view of point A in the middle;

[0040] Figure 4 This is a schematic diagram of the cooperation between the first connecting platform and the second connecting platform provided by this utility model;

[0041] Figure 5 This is a schematic diagram of the structure of the plug provided by this utility model.

[0042] In the diagram, 1 is the dry cooler, 2 is the condenser, 3 is the detachable fixed structure, 4 is the manifold, 5 is the flat tube, 6 is the side plate, 7 is the side plate, 8 is the vent, 9 is the first connecting platform, 10 is the second connecting platform, 11 is the arc-shaped part, 12 is the straight part, 13 is the fixing bolt, 14 is the support column, 15 is the discharge valve seat, 16 is the plug, 17 is the large-head screwing part, 18 is the round rod part, 19 is the threaded section, 20 is the reduced diameter section, 21 is the air pressure balance channel, 22 is the annular groove, 23 is the external air pressure balance hole, 24 is the internal air pressure balance hole, 25 is the inlet and outlet pipe connection seat, 26 is the flange quick connector, 27 is the inlet and outlet pipe, and 28 is the second connecting hole. 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 Figure 1-5As shown, the heat exchange device integrating multiple heat exchange units includes two stacked heat exchange units. Each heat exchange unit includes a plate-shaped dry cooler 1 and a condenser 2. Both the dry cooler 1 and the condenser 2 include two parallel manifolds 4. Several flat tubes 5 and two side plates 6 are connected between the two manifolds 4 at intervals. The flat tubes 5 are located between the two side plates 6 and are perpendicular to the manifolds 4. A detachable fixing structure 3 is set between two adjacent manifolds 4 and between two adjacent side plates 6.

[0046] Specifically, this heat exchange device integrates a dry cooler 1 and a condenser 2, allowing selective opening of some or all heat exchange units depending on the specific operating environment and heat exchange requirements. This facilitates efficient use of heat exchange costs. The detachable fixing structure 3 provides a secure connection from the ends and sides of the heat exchange units, while also offering flexible disassembly for easy assembly and disassembly. Both the dry cooler 1 and the condenser 2 are composed of manifolds 4, flat tubes 5, and side plates 6. The flat tubes 5 and side plates 6 are arranged parallel to each other and connected at both ends to the manifolds 4. Microchannels are formed within the flat tubes 5, communicating with the collection chambers of the manifolds 4. The side plates 6 are located on both outer sides of the flat tube group 5, protecting the flat tubes 5 and achieving a high-strength connection between the two manifolds 4. The detachable fixing structure 3 specifically connects the heat exchange units by linking adjacent manifolds 4 and adjacent side plates 6.

[0047] like Figure 1-3 As shown, the detachable fixing structure 3 includes a side plate 7 located on the side of the heat exchange unit. The side plate 6 and the side plate 7 are fixedly connected by rivets, and the side plate 6 and the side plate 7 are respectively provided with first connecting holes for the rivets to pass through. Several vents 8 are arranged along the length direction on the side plate 7, and the vents 8 are located between the two side plates 6.

[0048] Specifically, the side plate 7 is located on the side of the side plate 6 away from the flat tube 5, and its width is greater than that of the side plate 6. The side plate 7 and the side plate 6 are fixedly connected by rivets or bolts, which allows for quick connection and flexible disassembly. A vent 8 is provided through the middle of the side plate 7. The vent 8 is strip-shaped and located between opposite sides of the side plate 6. Air can enter and exit through the vent 8, which increases the airflow rate between the flat tubes 5 and improves the heat exchange efficiency. Moreover, the vents 8 are evenly distributed, that is, adjacent vents 8 are connected by partition strips, which can ensure the structural strength of the side plate 7.

[0049] like Figure 1 , 3As shown in Figure 4, the detachable fixing structure 3 is respectively set between the first connecting platform 9 and the second connecting platform 10 between the two manifolds 4. The mating surfaces of the first connecting platform 9 and the second connecting platform 10 are tightly attached to each other, and the first connecting platform 9 and the second connecting platform 10 are fixed together by a bolt structure. The cross-section of the first connecting platform 9 is H-shaped, including an arc-shaped part 11 and a straight part 12. The arc-shaped part 11 is attached to the manifold 4 and welded to it. The straight part 12 has a mating surface on the side near the second connecting platform 10. The cross-section of the second connecting platform 10 is U-shaped, with an arc-shaped surface on one side. The arc-shaped surface is attached to the manifold 4 and welded to it. The side of the second connecting platform 10 has a mating surface on the side near the first connecting platform 9. A second connecting hole 28 is provided through the straight part 12 and the second connecting platform 10. The bolt structure includes a fixing bolt 13 that passes through the second connecting hole 28. A nut is engaged at the front end of the screw of the fixing bolt 13. A tubular support column 14 is horizontally placed inside the second connecting platform 10. The two ends of the support column 14 abut against the two inner sides of the second connecting platform 10, and the screw passes through the support column 14.

[0050] Specifically, a connecting platform is provided on the side of the manifold 4 away from the flat tube 5. The opposite surfaces of the first connecting platform 9 and the second connecting platform 10 of the two heat exchange units are flat mating surfaces. The two mating surfaces are tightly attached, and the bolt structure fixes the first connecting platform 9 and the second connecting platform 10 into one piece, so as to achieve the effect of connecting two sets of heat exchange units from the manifold 4. The first connecting platform 9 is H-shaped, with the inner diameter of its arc-shaped portion 11 matching the outer diameter of the manifold 4. The arc-shaped portion 11 fits against the outer wall of the manifold 4 and is fixed as a single structure by welding. The second connecting platform 10 is U-shaped, hollow inside, which is beneficial for weight reduction and material cost reduction. The hollow direction of the second connecting platform 10 matches the length direction of the manifold 4. An arc-shaped surface is formed on its outer side wall, which fits against the outer wall of the manifold 4. A flat fitting surface is formed on the top surface. The fitting surfaces of the first connecting platform 9 and the second connecting platform 10 are tightly attached. The fixing bolts 13 pass through the second connecting holes 28 on the two connecting platforms and are tightened with nuts to achieve a fixed connection between the first connecting platform 9 and the second connecting platform 10. A support column 14 is provided between the inner top surface and the inner bottom surface of the second connecting platform 10. The support column 14 supports the top and bottom surfaces, improving structural strength and preventing the top and bottom surfaces from deforming and closing when the fixing bolts 13 and nuts are tightened. Furthermore, the support column 14 can also seal the screw inside the second connecting platform 10, preventing dust and debris from covering the screw and ensuring that the fixing bolt 13 can be easily unscrewed.

[0051] As an optimization of this embodiment, matching concave and convex surfaces can also be provided on the two mating surfaces. The concave and convex parts of the two concave and convex surfaces are exactly aligned, which has the effect of positioning and anti-slip. The cross-section of the concave and convex parts is in the shape of a broken line.

[0052] like Figure 1 , 3As shown in Figure 5, the manifold 4 of the dry cooler 1 is provided with a discharge valve seat 15. The discharge valve seat 15 is provided with a discharge channel that communicates with the manifold cavity of the manifold 4. A plug 16 is detachably provided on the discharge port at the outer end of the discharge channel. The plug 16 is T-shaped and includes an integrally connected large-end screwing part 17 and a round rod part 18. The round rod part 18 engages with the internal thread in the discharge port through its threaded section 19. The round rod part 18 includes a threaded section 19 at the front end and a reduced-diameter section 20 at the rear end. The side wall of the reduced-diameter section 20 is provided with an external air pressure balance hole 23, and the end face of the threaded section 19 is provided with an internal air pressure balance hole 24. The internal air pressure balance hole 24 and the external air pressure balance hole 23 are connected to form an air pressure balance channel 21. The outer diameter of the threaded section 19 is adapted to the inner diameter of the discharge port, but is larger than the outer diameter of the reduced-diameter section 20. The inner end face of the large-end screwing part 17 is provided with an annular groove 22, and a sealing ring is provided in the annular groove 22. The sealing ring is in contact with the end face of the discharge valve seat 15.

[0053] Specifically, a discharge channel is formed in the discharge valve seat 15 on the manifold 4 of the dry cooler 1, which can be used for venting or draining liquid. The discharge port of the discharge channel is sealed by a plug 16, which is similar to a bolt with a T-shaped axial cross section. The threaded section 19 of the round rod portion 18 engages with the thread of the discharge port, ensuring flexible disassembly. Furthermore, in order to realize the rotation operation of the plug 16, the large-end turning part 17 is hexagonal, and the plug 16 can be rotated by a corresponding wrench or screwdriver. The first half of the round rod 18 is a threaded section 19, and the second half is a reduced-diameter section 20. An annular gap is formed between the reduced-diameter section 20 and the discharge port. The air pressure balance channel 21 connects the side wall of the reduced-diameter section 20 and the front end face of the threaded section 19, that is, it connects the annular gap and the collection cavity. This allows air to enter and exit through the air pressure balance channel 21 when the plug 16 is screwed in or out, especially before the inner end face of the large-end screwing part 17 comes into contact with the end face of the tubular base, thus achieving a balance of internal and external air pressure and facilitating disassembly and assembly. A sealing ring is provided on the inner side of the large-end screwing part 17. This sealing ring is in close contact with the end face of the discharge valve seat 15, achieving a circumferential seal between the discharge valve seat 15 and the large-end screwing part 17.

[0054] like Figure 1 , 3 As shown, the manifold 4 of the dry cooler 1 is provided with an inlet / outlet pipe connector 25. The inlet / outlet pipe connector 25 is provided with an inlet / outlet channel that communicates with the manifold cavity of the manifold 4. The outer end of the inlet / outlet channel is provided with a flange-type quick connector 26 for connecting the inlet / outlet liquid pipe. The manifold 4 of the condenser 2 is connected with an inlet / outlet pipe 27.

[0055] Specifically, the inlet and outlet pipe connector 25 on the manifold 4 of the dry cooler 1 is connected to the inlet and outlet liquid pipes via quick connectors, enabling quick assembly and disassembly of the inlet and outlet liquid pipes. The flange quick connector 26 is annular, with a mating interface at its bottom. The end of the inlet and outlet pipe connector 25 is inserted into the mating interface and welded in place. The end face of the inlet and outlet pipe connector 25 abuts against the annular stepped surface on the inner side of the mating interface. The outer end of the flange quick connector 26 is provided with an annular protrusion, which can mate with the free connector of the matching inlet and outlet liquid pipes. The flange portion of the flange quick connector and the flange portion of the free connector are fixed together by bolts, and a sealing ring is provided between the end faces of the flange quick connector and the free connector.

[0056] Specific working principle: In actual use, when the heat exchange requirement is low, only the dry cooler 1 can be activated. The heat exchange medium is input into the manifold 4 through the inlet and outlet liquid pipes, and then enters another manifold 4 through the flat tube 5, where it exchanges heat with the atmosphere through the tube wall of the flat tube 5. When the heat exchange requirement is high, only or simultaneously the condenser 2 is activated. The corresponding heat exchange medium flows between the manifold 4 and the flat tube 5 of the condenser 2, resulting in higher heat exchange efficiency.

[0057] Example 2

[0058] 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.

[0059] In this embodiment, the manifold 4 and the flat tube 5 form an acute angle, that is, the flat tube 5 is obliquely inserted into the manifold 4, forming a shape similar to a parallelogram.

[0060] 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 heat exchange device integrating multiple heat exchange units, characterized in that, It includes at least two stacked heat exchange units, each heat exchange unit including a plate-shaped dry cooler (1) or condenser (2), and a detachable fixing structure (3) is provided between the ends and / or sides of adjacent heat exchange units.

2. The heat exchange device integrating multiple heat exchange units according to claim 1, characterized in that, The dry cooler (1) and condenser (2) both include two parallel manifolds (4), and several flat tubes (5) and two side plates (6) are connected between the two manifolds (4) at intervals. The flat tubes (5) are located between the two side plates (6), and the detachable fixing structure (3) is set between two adjacent manifolds (4) and / or between two adjacent side plates (6); the included angle between the flat tubes (5) and the manifolds (4) is 90 degrees or less than 90 degrees.

3. The heat exchange device integrating multiple heat exchange units according to claim 2, characterized in that, The detachable fixing structure (3) includes a side plate (7) located on the side of the heat exchange unit, and the side plate (6) and the side plate (7) are fixedly connected by rivets and / or bolts.

4. The heat exchange device integrating multiple heat exchange units according to claim 3, characterized in that, The side plate (7) has several vents (8) arranged along its length, and the vents (8) are located between the two side plates (6).

5. The heat exchange device integrating multiple heat exchange units according to claim 2, characterized in that, The detachable fixing structure (3) is respectively set on the first connecting platform (9) and the second connecting platform (10) between the two manifolds (4). The first connecting platform (9) and the second connecting platform (10) are attached to each other, and the first connecting platform (9) and the second connecting platform (10) are fixed together by bolts.

6. The heat exchange device integrating multiple heat exchange units according to claim 5, characterized in that, The first connecting platform (9) has an H-shaped cross section, including an arc-shaped part (11) and a straight part (12). The arc-shaped part (11) is attached to the manifold (4) and welded to it. The cross-section of the second connecting platform (10) is U-shaped, and an arc surface is formed on one side. The arc surface is attached to and welded to the manifold (4). The top surface of the second connecting platform (10) is in close contact with the bottom surface of the straight part (12). The straight section (12) and the second connecting platform (10) are provided with a second connecting hole (28), and the bolt structure includes a fixing bolt (13) passing through the second connecting hole (28).

7. The heat exchange device integrating multiple heat exchange units according to claim 6, characterized in that, The second connecting platform (10) has a tubular support column (14) placed horizontally inside, and the two ends of the support column (14) abut against the two inner sides of the second connecting platform (10).

8. The heat exchange device integrating multiple heat exchange units according to any one of claims 1-7, characterized in that, The dry cooler (1) has a discharge valve seat (15) on its manifold (4), and a plug (16) is detachably installed on the discharge port at the outer end of the discharge valve seat (15).

9. The heat exchange device integrating multiple heat exchange units according to claim 8, characterized in that, The plug (16) is T-shaped and includes an integrally connected large-head screwing part (17) and a round rod part (18). The round rod part (18) engages with the internal thread in the discharge port through its threaded section (19). The round rod portion (18) includes a threaded section (19) at the front end and a reduced diameter section (20) at the rear end. An air pressure balance channel (21) is provided between the side wall of the reduced diameter section (20) and the front end face of the threaded section (19). The inner end face of the large-head twisting part (17) is provided with an annular groove (22).

10. The heat exchange device integrating multiple heat exchange units according to any one of claims 1-7, characterized in that, The dry cooler (1) has an inlet and outlet pipe connection seat (25) on its manifold (4), and the outer end of the inlet and outlet pipe connection seat (25) is provided with a flange-type quick connector (26) or a chuck-type quick connector for connecting the inlet and outlet liquid pipes. The condenser (2) has an inlet and outlet pipe (27) connected to the manifold (4).

Images