Multi-medium heat pipe composite heat exchange device arranged in a circumferential direction

Abstract

The present application relates to the technical field of tubular energy-saving heat exchange device, and particularly relates to a circumferential multi-medium heat pipe composite heat exchange device, which comprises a main cylinder, a central heat pipe arranged at the central position of the main cylinder, a heat exchange assembly arranged in the main cylinder, the heat exchange assembly performing multi-directional heat transfer to the central heat pipe, a cooperation assembly arranged at the upper side of the main cylinder, and the cooperation assembly cooperating to switch the medium path of the heat exchange assembly. The present application takes the central heat pipe as the heat transfer center, circumferentially arranges the first heat exchange pipe and the second heat exchange pipe layer by layer at the condensation section of the heat pipe, makes the heat pipe transfer heat to multiple directions at the same time, integrates multiple medium heat exchange pipes in the same shell, realizes the concentrated heat coupling of multiple fluid paths in a compact space, solves the problems of complex system and large floor area of multiple independent heat exchangers, and simultaneously, sets the heat dissipation fins and spring structure, uses air flow disturbance to make the fins vibrate slightly to strengthen the convective heat exchange.

Description

Technical Field

[0001] This invention relates to the technical field of tubular energy-saving heat exchange devices, and in particular to a composite heat exchange device with circumferentially arranged multi-medium heat pipes. Background Technology

[0002] In fields such as industrial waste heat recovery, chemical processes, and refrigeration and air conditioning, there are often complex working conditions where heat exchange is required between fluids of different temperature levels and physical states at the same time. Taking industrial circulating cooling water systems as an example, they often need to achieve refrigeration cycles with low-temperature refrigerants and heating cycles with medium-temperature heat transfer media at the same time. Traditional technical means usually involve setting up multiple independent heat exchangers to handle each medium separately, or simply arranging multiple sets of heat exchange tube bundles along the axial direction in the same shell. However, the former results in a large system footprint, high initial equipment investment, complex piping connections, and inconvenient operation and maintenance. While the latter achieves integration to some extent, dead zones in the flow field are easily formed between tube bundles, resulting in insufficient utilization of the heat exchange area. Especially when three or more media are involved, heat cannot be efficiently transferred and coupled between multiple media, making it difficult to improve overall energy efficiency. In addition, existing heat pipe heat exchangers are mostly simple correspondences between a single heat source and a single cold source. When there are different heat parameters required on the heating side, it is often necessary to connect multiple devices in series or add auxiliary heat exchangers, which complicates the process and increases heat loss. Therefore, we propose a circumferentially arranged multi-media heat pipe composite heat exchange device. Summary of the Invention

[0003] In order to overcome the technical problems existing in the prior art, the present invention provides a circumferentially arranged multi-medium heat pipe composite heat exchange device.

[0004] To solve the above technical problems, the present invention provides the following technical solution: including a main cylinder, a central heat pipe is provided at the center of the main cylinder, a heat exchange assembly is provided inside the main cylinder, the heat exchange assembly transfers heat to the central heat pipe in multiple directions, and a cooperating assembly is provided on the upper side of the main cylinder, the cooperating assembly cooperates to switch the medium path of the heat exchange assembly. The heat exchange assembly includes a mounting bracket, which is fixedly sleeved on the side of the central heat pipe. A first heat exchange pipe and a second heat exchange pipe are fixedly arranged on the side of the mounting bracket. The internal media of the first heat exchange pipe and the second heat exchange pipe cooperate with the central heat pipe to perform multi-media heat exchange. Heat dissipation fins are arranged on the sides of the first heat exchange pipe and the second heat exchange pipe to assist in the full recovery of the waste heat of the first heat exchange pipe and the second heat exchange pipe. The mating assembly includes a first mating pipe and a second mating pipe, which are arranged corresponding to the first heat exchanger and the second heat exchanger to form a multi-medium path. A second electrically controlled valve is provided on the side of the first and second mating pipes. A connecting pipe and a first electrically controlled valve are provided on the side of the second electrically controlled valve. The first electrically controlled valve and the second electrically controlled valve control the switching of the medium path.

[0005] Furthermore, a connecting cylinder is provided on the lower side of the main cylinder. A heat source inlet pipe and a heat source outlet pipe are fixedly installed through the side of the connecting cylinder. The heat source inlet pipe and the heat source outlet pipe are connected to the heat source path. The central heat pipe extends to the inner bottom wall of the connecting cylinder. The central heat pipe is filled with a phase change working fluid. A sleeve is fixedly installed on the inner wall of the connecting cylinder and extends into the main cylinder and is sleeved on the side of the central heat pipe.

[0006] Furthermore, the mounting bracket is snapped onto the upper end of the main cylinder, and the first heat exchange tube and the second heat exchange tube are fixedly mounted on the annular end face of the mounting bracket in a circumferential array. The first heat exchange tube and the second heat exchange tube are arranged around the center of the central heat pipe, with the first heat exchange tube arranged around the central heat pipe and the second heat exchange tube arranged around the first heat exchange tube.

[0007] Furthermore, the heat dissipation fins are equidistantly and movably sleeved on the sides of the first heat exchange tube and the second heat exchange tube. The heat dissipation fins are inclined downwards. Connecting pieces are fixedly connected between the sides of the heat dissipation fins and the connecting pieces are attached to the sides of the first heat exchange tube and the second heat exchange tube. A spring is fixedly connected to the lower side of the lowest heat dissipation fin and the spring is movably sleeved on the side of the first heat exchange tube and the second heat exchange tube.

[0008] Furthermore, an air inlet pipe and an air outlet pipe are fixedly installed through the side of the main cylinder, and the air inlet pipe and the air outlet pipe are connected to the airflow path.

[0009] Furthermore, the first mating pipe is clamped and installed to the inner side of the adjacent first heat exchange pipe. A first fixing bracket is fixedly sleeved on the side of the first mating pipe. A first water inlet pipe and a first water outlet pipe are fixedly installed through the side of the first fixing bracket and inserted into the inner side of the corresponding first heat exchange pipe. The first water inlet pipe is connected to the circulating cooling water path, and the first water outlet pipe can be switched to connect to the refrigerant or circulating cooling water path.

[0010] Furthermore, the second mating pipe is clamped and installed to the inner side of the adjacent second heat exchange tube. A second fixing bracket is fixedly sleeved on the side of the second mating pipe. A second water inlet pipe and a second water outlet pipe are fixedly installed through the side of the second fixing bracket and inserted into the inner side of the corresponding second heat exchange tube. The second water inlet pipe is connected to the refrigerant path, and the second water outlet pipe can be switched to the circulating cooling water or refrigerant path.

[0011] Furthermore, the connecting pipe is fixedly installed on the side of the first inlet pipe, the first outlet pipe, the second inlet pipe, and the second outlet pipe. The other end of the connecting pipe on the side of the first inlet pipe and the first outlet pipe is fixedly connected to the side of the corresponding second mating pipe. The other end of the connecting pipe on the side of the second inlet pipe and the second outlet pipe is fixedly connected to the side of the corresponding first mating pipe. The first electric control valve is fixedly installed on the side of the connecting pipe. The second electric control valve is fixedly installed on the side of the first mating pipe and the second mating pipe. A sealing sleeve is provided on the upper side of the main cylinder.

[0012] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention uses a central heat pipe as the heat transfer hub, and arranges the first and second heat exchange tubes layer by layer in the circumferential direction of the heat pipe's condensation section. This allows the heat pipe to transfer heat in multiple directions simultaneously, integrating multiple medium heat exchange tubes into the same shell. This achieves centralized thermal coupling of multiple fluids in a compact space, solving the problems of complex and large footprint of multiple independent heat exchanger systems. At the same time, by setting up heat dissipation fins and spring structures, the fins are made to vibrate slightly by airflow disturbance to enhance convective heat transfer. In conjunction with an electronically controlled valve group, the medium path can be flexibly switched, enabling the device to adaptively adjust its operating mode under different heating and cooling demands, thereby improving the overall energy utilization efficiency.

[0013] 2. This invention uses a central heat pipe as the core heat transfer element. After the heat source heats the evaporation section of the heat pipe, the heat is transferred to the condensation section through the phase change working fluid inside the heat pipe. Then, the heat is released to the circulating cooling water and refrigerant through the first and second heat exchange pipes arranged in a circumferential direction, respectively. This allows a single heat source to drive both heating and cooling cycles simultaneously, achieving centralized thermal coupling between multiple media. This eliminates the need for multiple independent heat exchangers and simplifies the system configuration.

[0014] 3. The present invention arranges the first heat exchange tube and the second heat exchange tube in a concentric circle around the central heat pipe, layer by layer, so that the full circumferential heat exchange surface of the heat pipe condensation section is fully utilized. Compared with the traditional axial or planar arrangement of tube bundles, it eliminates the dead zone of the flow field between tube bundles, significantly increases the heat exchange area per unit volume, and makes the structure more compact.

[0015] 4. The present invention uses downwardly inclined heat dissipation fins that are movably sleeved on the sides of the first heat exchange tube and the second heat exchange tube, and connecting plates are fixedly connected between the fins. This allows the fin assembly to move slightly up and down along the tube wall with the airflow disturbance, thereby breaking the thermal boundary layer on the fin surface, enhancing the convective heat transfer efficiency between the fins and the airflow, and at the same time, the airflow itself also carries away some heat to form hot air for utilization, thereby improving the waste heat recovery rate.

[0016] 5. This invention achieves flexible switching of the medium flow path through the coordinated configuration of the first and second matching pipes, connecting pipes, and the first and second solenoid valves in the component. In the default state, all first heat exchange pipes are filled with cooling water and all second heat exchange pipes are filled with refrigerant for full heat exchange. In the switching state, the cooling water and refrigerant are each diverted to half of the first and second heat exchange pipes, realizing differentiated operation of half producing warm water and half cooling. The two working states can be freely switched according to the actual heat and cold demand, enhancing the device's adaptability to different working conditions.

[0017] 6. This invention uses a single central heat pipe in conjunction with a circumferential tube bundle to form a standard heat exchange module. The modules can be connected in parallel or in series through medium pipelines, airflow channels and heat source paths to expand the module. This allows for flexible addition or reduction of the number of modules according to the actual heat exchange requirements on site, and has good modular scalability and adaptability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic cross-sectional view of the peripheral structure of the main cylinder of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a schematic diagram of the heat exchange tube structure on the side of the mounting bracket of the present invention. Figure 6 This is a schematic diagram of the heat dissipation fin structure installed on the side of the heat exchange tube of the present invention; Figure 7 This is a schematic diagram of the installation of the mating structure of the first heat exchange tube of the present invention; Figure 8 This is a schematic diagram of the installation of the mating structure of the second heat exchange tube of the present invention; Figure 9 This is a partial structural diagram of the components used in this invention; Figure 10 This is an exploded view of a portion of the structure of the components used in this invention; Figure 11 This is a schematic diagram of the medium flow state when the present invention is used; Figure 12 This is a schematic diagram of the second state of medium flow when the present invention is used.

[0019] The components include: 1. Main cylinder; 11. Connecting cylinder; 12. Heat source inlet pipe; 13. Heat source outlet pipe; 14. Central heat pipe; 15. Sleeve; 2. Heat exchange assembly; 21. Mounting bracket; 22. First heat exchange pipe; 23. Second heat exchange pipe; 24. Heat dissipation fins; 25. Connecting piece; 26. Spring; 27. Air inlet pipe; 28. Air outlet pipe; 3. Fitting assembly; 31. First fitting pipe; 311. First fixing bracket; 312. First water inlet pipe; 313. First water outlet pipe; 32. Second fitting pipe; 321. Second fixing bracket; 322. Second water inlet pipe; 323. Second water outlet pipe; 33. Connecting pipe; 331. First electric control valve; 34. Second electric control valve; 35. Sealing cylinder. Detailed Implementation

[0020] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0021] Example: Figure 1 and Figure 2As shown, a circumferentially arranged multi-medium heat pipe composite heat exchange device includes a main cylinder 1, which is a hollow cylindrical tube. A connecting cylinder 11 is provided on the lower side of the main cylinder 1, and the connecting cylinder 11 and the main cylinder 1 are fixed by bolts. The connecting cylinder 11 is a cylinder with an open upper end. A heat source inlet pipe 12 and a heat source outlet pipe 13 are fixedly installed through the connecting cylinder 11 in a mirror image. The heat source inlet pipe 12 and the heat source outlet pipe 13 can be connected to a heat source path. The heat source can be high-temperature waste gas or hot water, etc. A central heat pipe 14 is provided at the center of the main cylinder 1 and extends to the inner bottom wall of the connecting cylinder 11. The central heat pipe 14 is filled with a phase change working fluid, such as water, acetone, or R245fa, etc. The central heat pipe 14 serves as the core heat transfer element. A sleeve 15 is fixedly installed on the inner wall of the connecting cylinder 11 and extends into the main cylinder 1 and is sleeved on the central heat pipe 14. On the side of section 4, sleeve 15 is a circular annular cylinder with a "Z"-shaped cross-section. The section of sleeve 15 covering the central heat pipe 14 is the evaporation section, and the remaining section inside the main cylinder 1 is the condensation section. A heat exchange assembly 2 is installed inside the main cylinder 1, and a matching assembly 3 is installed on the upper side of the main cylinder 1. Specifically, the heat source is transported to the inside of the connecting cylinder 11 through the heat source inlet pipe 12 and discharged through the heat source outlet pipe 13. When the heat source contacts the central heat pipe 14, the phase change working fluid inside the heat pipe evaporates and absorbs heat, and the vapor flows axially to the condensation section. Then, the heat exchange assembly 2 transfers heat to the central heat pipe 14 in multiple directions, and can perform centralized thermal coupling between multiple media. The matching assembly 3 can switch the media path of the heat exchange assembly 2 to realize the use of the heat exchange device in different states, thereby achieving efficient multi-media heat exchange, fully recovering and reusing thermal energy, and improving thermal utilization rate.

[0022] like Figures 2 to 8As shown, the heat exchange assembly 2 includes a mounting bracket 21, which is fixedly sleeved on the upper side of the central heat pipe 14. The mounting bracket 21 is snapped onto the upper end of the main cylinder 1. A first heat exchange pipe 22 and a second heat exchange pipe 23 are equidistantly arranged in a circumferential array on the side of the mounting bracket 21. The first and second heat exchange pipes 22 and 23 are fixedly installed through the annular end face of the mounting bracket 21. Both the first and second heat exchange pipes 22 and 23 are arranged around the center of the central heat pipe 14. The first heat exchange pipe 22 is arranged around the central heat pipe 14, and the second heat exchange pipe 23 is arranged around the first heat exchange pipe 22. The first and second heat exchange pipes 22 and 23 are hollow "U"-shaped tubes. The distance between the first heat exchange pipe 22 and the outer wall of the central heat pipe 14 is 0.5-1.5 times the outer diameter of the central heat pipe 14, and the distance between the second heat exchange pipe 23 and the outer wall of the central heat pipe 14 is... The distance between them is 1.5-3 times the outer diameter of the central heat pipe 14, and is set according to this ratio. Specifically, the first heat exchange pipe 22 and the second heat exchange pipe 23 each form an independent flow path. The first heat exchange pipe 22 has circulating cooling water as the first medium, and the second heat exchange pipe 23 has refrigerant as the second medium. After the central heat pipe 14 is heated, the condensing section gradually releases heat to the first heat exchange pipe 22 and the second heat exchange pipe 23 arranged in the circumferential direction. The circulating cooling water inside the first heat exchange pipe 22 is heated by the condensing section of the main cylinder 1 for heating or process heat. The refrigerant inside the second heat exchange pipe 23 absorbs heat and evaporates on one side of the evaporating section of the central heat pipe 14 for cooling, and releases heat and condenses on the other side of the condensing section of the central heat pipe 14. This helps to transport the heat from the evaporating section to the condensing section. At this time, the central heat pipe 14 transfers heat to multiple directions at the same time, realizing thermal coupling between multiple media. Heat dissipation fins 24 are equidistantly and movably sleeved on the sides of the first heat exchange tube 22 and the second heat exchange tube 23. The heat dissipation fins 24 are circular rings made of aluminum or copper and are inclined downwards. A connecting piece 25 is fixedly connected between the sides of the heat dissipation fins 24 and fits against the sides of the first heat exchange tube 22 and the second heat exchange tube 23. The connecting piece 25 and the heat dissipation fins 24 are made of the same material. A spring 26 is fixedly connected to the lower side of the lowest heat dissipation fin 24 and is movably sleeved on the side of the first heat exchange tube 22 and the second heat exchange tube 23. An air inlet pipe 27 and an air outlet pipe 28 are fixedly and mirror-imagely fixedly installed on the side of the main cylinder 1. The air inlet pipe 27 and the air outlet pipe 28 can be connected to the airflow path. Specifically, the heat dissipation fins 24 and the connecting piece 25 cooperate to dissipate heat from the first heat exchange tube 22 and the second heat exchange tube 23. The first heat exchange tube 22 and the second heat exchange tube 23 conduct heat to the sides. In addition, the cooling airflow is connected at the air inlet duct 27. After passing through the inside of the main cylinder 1, the airflow is discharged from the air outlet duct 28. The airflow can carry away the heat dissipated from the sides of the first heat exchange tube 22, the second heat exchange tube 23 and the central heat pipe 14 inside the main cylinder 1 for reuse. At the same time, when the airflow flows, it can put pressure on the heat dissipation fins 24, causing them to move downward. The heat dissipation fins 24 and the connecting piece 25 as a whole can compress and deform the spring 26. The deformation force generated by the pressing on the spring 26 is greater than the downward pressure of the airflow. The heat dissipation fins 24 and the connecting piece 25 as a whole can be supported upward by the spring 26. In this way, the heat dissipation fins 24 and the connecting piece 25 as a whole move up and down on the sides of the first heat exchange tube 22 and the second heat exchange tube 23, which can improve their own heat conduction efficiency.

[0023] like Figures 2 to 4 and Figures 7 to 10As shown, the mating assembly 3 includes a first mating pipe 31 and a second mating pipe 32. The first mating pipe 31 is snap-fitted to the inner side of the adjacent first heat exchange pipe 22. The first mating pipe 31 is a U-shaped round pipe. A first fixing bracket 311 is fixedly sleeved on the side of the first mating pipe 31 and is located on the upper side of the mounting bracket 21. The first fixing bracket 311 is a circular plate. A first water inlet pipe 312 and a first water outlet pipe 313 are fixedly installed through the side of the first fixing bracket 311. The first inlet pipe 312 and the first outlet pipe 313 are inserted into the inner side of the corresponding first heat exchange tube 22. The first inlet pipe 312 is connected to the circulating cooling water path, and the first outlet pipe 313 can be switched to connect to either the refrigerant path or the circulating cooling water path. The second mating pipe 32 is snapped into the inner side of the adjacent second heat exchange tube 23. The second mating pipe 32 is a "U"-shaped pipe. A second fixing bracket 321 is fixedly sleeved on the side of the second mating pipe 32 and is located on the upper side of the mounting bracket 21. The second fixing bracket 321 is a ring. A plate, with a second inlet pipe 322 and a second outlet pipe 323 fixedly installed through the side of the second fixing frame 321, and the second inlet pipe 322 and the second outlet pipe 323 inserted into the inner side of the corresponding second heat exchange tube 23. The second inlet pipe 322 is connected to the refrigerant path, and the second outlet pipe 323 can be switched to the circulating cooling water or refrigerant path; specifically, the first mating pipe 31 connects the beginning and end of adjacent first heat exchange tubes 22, so that all first heat exchange tubes 22 can be connected in a circulating path. Circulating cooling water is introduced through inlet pipe 312, which cools the condensing section of the central heat pipe 14. After being heated, the cooling water is used. The second matching pipe 32 connects the two adjacent second heat exchange pipes 23, allowing all the second heat exchange pipes 23 to circulate. Refrigerant is introduced through the second inlet pipe 322, which absorbs heat and evaporates at the evaporation end of the central heat pipe 14. Then, it flows to the condensing section of the central heat pipe 14, where it releases heat and condenses, thus carrying away the heat. This completes the centralized setting and use of multiple media paths. A connecting pipe 33 is fixedly installed through the sides of the first inlet pipe 312, the first outlet pipe 313, the second inlet pipe 322, and the second outlet pipe 323. The other end of the connecting pipe 33 on the sides of the first inlet pipe 312 and the first outlet pipe 313 is fixedly connected through the sides of the corresponding second mating pipe 32. The other end of the connecting pipe 33 on the sides of the second inlet pipe 322 and the second outlet pipe 323 is fixedly connected through the sides of the corresponding first mating pipe 31. A first electrically controlled valve 331 is fixedly installed at the center of the side of the connecting pipe 33. The first electrically controlled valve 331 is electrically connected to an external controller. The first electrically controlled valve 331 can be a ball valve or a butterfly valve. A second electrically controlled valve 34 is fixedly installed at the center of the side of the first connecting pipe 31 and the second connecting pipe 32. The second electrically controlled valve 34, like the first electrically controlled valve 331, is electrically connected to an external controller. A sealing cylinder 35 is installed on the upper side of the main cylinder 1. The first water inlet pipe 312, the first water outlet pipe 313, the second water inlet pipe 322, and the second water outlet pipe 323 are fixedly installed through and on the side of the sealing cylinder 35. The sealing cylinder 35 is fixed to the upper side of the main cylinder 1 by bolts. Specifically, by default, all the first electrically controlled valves 331 isolate the connecting pipe 33, and the second electrically controlled valves 34 open, keeping the corresponding first connecting pipe 31 and second connecting pipe 32 connected. The first outlet pipe 313 is connected to the circulating cooling water path, and the second outlet pipe 323 is connected to the refrigerant path. The first inlet pipe 312 inputs circulating cooling water into all the first heat exchange pipes 22 and the first connecting pipes 31. The cooling water, along with the heat dissipation fins 24 and connecting plates 25, removes heat from the condenser section of the central heat pipe 14. The resulting hot water is used for subsequent heating. The second inlet pipe 322 inputs refrigerant into all the second heat exchange pipes 23 and the second connecting pipes 32. The refrigerant absorbs heat and evaporates in the evaporation section of the central heat pipe 14, then flows into the condenser section of the central heat pipe 14 to release heat and condense, where it is also removed from the heat. When switching between uses, all the first electrically controlled valves 331 open the connecting pipes 33. When the connection is opened, the second solenoid valve 34 isolates the corresponding first and second mating pipes 31 and 32. At this time, the first outlet pipe 313 is connected to the refrigerant path, and the second outlet pipe 323 is connected to the circulating cooling water path. The first inlet pipe 312 inputs circulating cooling water, which flows into half of the first heat exchange pipe 22 and the second heat exchange pipe 23, and then exits from the second outlet pipe 323. The second inlet pipe 322 inputs refrigerant, which flows into half of the first heat exchange pipe 22 and the second heat exchange pipe 23, and then exits from the first outlet pipe 313. In this way, the circulating cooling water on one side can generate warm water for use, while the refrigerant on the other side carries away heat for other purposes.

[0024] Working principle: When using: such as Figure 10As shown, the device is in state one. At this time, the first outlet pipe 313 is connected to the first medium path, and the second outlet pipe 323 is connected to the second medium path. The first solenoid valve 331 isolates the inside of the connecting pipe 33, and the second solenoid valve 34 connects the inside of the first mating pipe 31 and the second mating pipe 32. The first medium circulating cooling water is input through the first inlet pipe 312. After circulating to all the first heat exchange pipes 22 and the first mating pipes 31, the cooling water is discharged to the first outlet pipe 313. The cooling water carries away the heat at the condensing section of the central heat pipe 14 and the heat on the side of the corresponding second heat exchange pipe 23 to generate hot water for subsequent heating. The second medium refrigerant is input through the second inlet pipe 322. After circulating to all the second heat exchange pipes 23 and the second mating pipes 32, the refrigerant is discharged to the second outlet pipe 323. The refrigerant flows to the evaporating section of the central heat pipe 14 to absorb heat and evaporate, and then flows to the condensing section of the central heat pipe 14 to release heat and condense, thus carrying away the heat. This achieves the maximum efficiency of heat exchange. like Figure 11 As shown, the device is in state two. At this time, the first outlet pipe 313 is connected to the second medium path, the second outlet pipe 323 is connected to the first medium path, the first solenoid valve 331 connects the inside of the connecting pipe 33, and the second solenoid valve 34 isolates the inside of the first connecting pipe 31 and the second connecting pipe 32. The first medium circulating cooling water is input through the first inlet pipe 312. The cooling water flows through the first connecting pipe 31 and the second connecting pipe 32 to half of the first heat exchange pipe 22 and the second heat exchange pipe 23, and is finally discharged through the second outlet pipe 323. The cooling water carries away the heat of the condensing section of the central heat pipe 14 to produce warm water for use. The second medium refrigerant is input through the second inlet pipe 322. The refrigerant flows through the first connecting pipe 31 and the second connecting pipe 32 to the other half of the first heat exchange pipe 22 and the second heat exchange pipe 23, and is finally discharged through the first outlet pipe 313. The refrigerant can exchange heat away the heat of the other half of the central heat pipe 14 for other uses. In the two working states described above, the air inlet pipe 27 receives the cooling airflow, which flows into the main cylinder 1 and carries away the heat from the sides of the first heat exchange tube 22 and the second heat exchange tube 23. The generated hot air is discharged from the air outlet pipe 28 for subsequent heat use. At the same time, the airflow exerts downward pressure on the heat dissipation fins 24, causing the heat dissipation fins 24 and the connecting piece 25 to deform the spring 26 as a whole. When the spring 26 reaches its deformation limit, it supports the heat dissipation fins 24 and the connecting piece 25 to return to their original position upward. The heat dissipation fins 24 and the connecting piece 25 can then move up and down on the sides of the first heat exchange tube 22 and the second heat exchange tube 23, increasing the heat conduction efficiency of the heat dissipation fins 24 and the connecting piece 25, so that the airflow can quickly carry away the heat. In addition, the device can be configured in multiple groups according to on-site requirements, and the corresponding medium, airflow and heat source paths can be connected in parallel or in series for use.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A circumferentially arranged multi-medium heat pipe composite heat exchange device, including a main cylinder (1), a central heat pipe (14) is provided at the center of the main cylinder (1), a heat exchange component (2) is provided inside the main cylinder (1), the heat exchange component (2) transfers heat to the central heat pipe (14) in multiple directions, and a cooperating component (3) is provided on the upper side of the main cylinder (1), the cooperating component (3) cooperates to switch the medium path of the heat exchange component (2); Its features are: The heat exchange assembly (2) includes a mounting bracket (21), which is fixedly sleeved on the side of the central heat pipe (14). A first heat exchange pipe (22) and a second heat exchange pipe (23) are fixedly arranged on the side of the mounting bracket (21). The internal media of the first heat exchange pipe (22) and the second heat exchange pipe (23) cooperate with the central heat pipe (14) to perform multi-media heat exchange. Heat dissipation fins (24) are arranged on the side of the first heat exchange pipe (22) and the second heat exchange pipe (23). The heat dissipation fins (24) assist in fully recovering the waste heat of the first heat exchange pipe (22) and the second heat exchange pipe (23). A connecting cylinder (11) is provided on the lower side of the main cylinder (1). A heat source inlet pipe (12) and a heat source outlet pipe (13) are fixedly installed through the side of the connecting cylinder (11). The heat source inlet pipe (12) and the heat source outlet pipe (13) are connected to the heat source path. The central heat pipe (14) extends to the inner bottom wall of the connecting cylinder (11). The central heat pipe (14) is filled with a phase change working fluid. A sleeve (15) is fixedly installed on the inner wall of the connecting cylinder (11). The sleeve (15) extends into the main cylinder (1) and is sleeved on the side of the central heat pipe (14). The section of the sleeve (15) covering the central heat pipe (14) is the evaporation section, and the remaining section inside the main cylinder (1) is the condensation section. The mating assembly (3) includes a first mating pipe (31) and a second mating pipe (32). The first mating pipe (31) and the second mating pipe (32) are arranged corresponding to the first heat exchange pipe (22) and the second heat exchange pipe (23) to form a multi-medium path. A second electrically controlled valve (34) is provided on the side of the first mating pipe (31) and the second mating pipe (32). A connecting pipe (33) and a first electrically controlled valve (331) are provided on the side of the second electrically controlled valve (34). The first electrically controlled valve (331) and the second electrically controlled valve (34) control the switching of the medium path flow. The first mating pipe (31) is snapped into the inner side of the adjacent first heat exchange pipe (22). The side of the first mating pipe (31) is fixedly fitted with a first fixing bracket (311). The side of the first fixing bracket (311) is fixedly installed with a first water inlet pipe (312) and a first water outlet pipe (313). The first water inlet pipe (312) and the first water outlet pipe (313) are inserted into the inner side of the corresponding first heat exchange pipe (22). The first water inlet pipe (312) is connected to the circulating cooling water path. The first water outlet pipe (313) can be switched to the refrigerant or circulating cooling water path. The second fitting pipe (32) is snapped into the inner side of the adjacent second heat exchange pipe (23). The side of the second fitting pipe (32) is fixedly fitted with a second fixing bracket (321). The side of the second fixing bracket (321) is fixedly installed with a second water inlet pipe (322) and a second water outlet pipe (323). The second water inlet pipe (322) and the second water outlet pipe (323) are inserted into the inner side of the corresponding second heat exchange pipe (23). The second water inlet pipe (322) is connected to the refrigerant path. The second water outlet pipe (323) can be switched to the circulating cooling water or refrigerant path.

2. The circumferentially arranged multi-medium heat pipe composite heat exchanger according to claim 1, characterized in that: The mounting bracket (21) is snapped onto the upper end of the main cylinder (1). The first heat exchange tube (22) and the second heat exchange tube (23) are fixedly mounted on the annular end face of the mounting bracket (21) in a circumferential array. The first heat exchange tube (22) and the second heat exchange tube (23) are arranged around the center of the central heat pipe (14). The first heat exchange tube (22) is arranged around the central heat pipe (14), and the second heat exchange tube (23) is arranged around the first heat exchange tube (22).

3. The circumferentially arranged multi-medium heat pipe composite heat exchanger according to claim 2, characterized in that: The heat dissipation fins (24) are equidistantly and movably sleeved on the sides of the first heat exchange tube (22) and the second heat exchange tube (23). The heat dissipation fins (24) are inclined downward. A connecting piece (25) is fixedly connected between the sides of the heat dissipation fins (24) and the connecting piece (25) is attached to the sides of the first heat exchange tube (22) and the second heat exchange tube (23). A spring (26) is fixedly connected to the lower side of the lowest heat dissipation fin (24) and the spring (26) is movably sleeved on the side of the first heat exchange tube (22) and the second heat exchange tube (23).

4. The circumferentially arranged multi-medium heat pipe composite heat exchanger according to claim 3, characterized in that: The main cylinder (1) has an air inlet pipe (27) and an air outlet pipe (28) fixedly installed on its side, and the air inlet pipe (27) and the air outlet pipe (28) are connected to the airflow path.

5. The circumferentially arranged multi-medium heat pipe composite heat exchanger according to claim 4, characterized in that: The connecting pipe (33) is fixedly installed through the side of the first inlet pipe (312), the first outlet pipe (313), the second inlet pipe (322), and the second outlet pipe (323). The other end of the connecting pipe (33) on the side of the first inlet pipe (312) and the first outlet pipe (313) is fixedly connected through the side of the corresponding second matching pipe (32). The other end of the connecting pipe (33) on the side of the second inlet pipe (322) and the second outlet pipe (323) is fixedly connected through the side of the corresponding first matching pipe (31). The first electric control valve (331) is fixedly installed on the side of the connecting pipe (33). The second electric control valve (34) is fixedly installed on the side of the first matching pipe (31) and the second matching pipe (32). A sealing sleeve (35) is provided on the upper side of the main cylinder (1).

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