Air source heat pump heat exchange system

Abstract

The invention relates to the technical field of heat exchange, in particular to an air source heat pump heat exchange system which comprises a heat exchange tank, a heat exchange cylinder is fixedly connected to the inner side of the heat exchange tank, and the space between the heat exchange tank and the heat exchange cylinder is filled with a heat preservation material.The air source heat pump heat exchange system can be flexibly adjusted according to the use condition of the air source heat pump heat exchange system; floor heating water can rapidly pass through the pipe array in the longitudinal direction in a mild climate or a scene requiring rapid temperature rise of a user and in a longitudinal short-circuit flow channel mode, the retention time is greatly shortened, the flow resistance is reduced, and the floor heating water can circuitously flow in the heat exchange cylinder in a severe cold working condition or a scene requiring large temperature difference and in a snakelike long-path flow channel mode, so that the heat exchange efficiency is improved. The residence time is remarkably prolonged, low-temperature return water and a high-temperature refrigerant are in full contact for heat exchange, the heat exchange area can be utilized to the maximum extent, the temperature rise amplitude of a single cycle is improved, the load of a heat pump compressor is reduced, high-energy-efficiency stable operation is achieved, and rapid heat supply and flexible adjustment are achieved.

Description

An air source heat pump heat exchange system Technical Field

[0001] This invention relates to the field of heat exchange technology, and more particularly to an air source heat pump heat exchange system. Background Technology

[0002] Air source heat pump heat exchange systems use efficient and energy-saving energy conversion technology to convert low-grade heat energy in the air into high-grade heat energy, providing stable and comfortable radiant floor heating for buildings. The system adopts the reverse Carnot cycle principle and consists of core components such as compressor, evaporator, condenser and expansion valve. During operation, the evaporator absorbs heat from the outdoor air, and after the compressor does work to raise the temperature, the heat is transferred to the floor heating circulating water through the condenser. This heat exchange method does not require the combustion of fossil fuels and only consumes a small amount of electricity to achieve directional heat transfer, which has significant energy-saving and environmental protection advantages.

[0003] As the core equipment for clean heating, the performance of the heat exchange box of the air source heat pump heat exchange system directly affects the heating quality and energy efficiency. The internal structure of the existing heat exchange box is usually a fixed design, and the shell-side flow channel shape cannot be changed once it is manufactured, resulting in a constant residence time of the underfloor heating water in the heat exchange cylinder.

[0004] However, there are significant dynamic differences in actual heating scenarios. On the one hand, user load demand changes continuously with outdoor temperature, usage time and building characteristics. Fixed flow channels can hardly meet the needs of high-efficiency heat exchange in severe cold conditions and rapid response in mild conditions. On the other hand, different users in a multi-user system have different heat preferences and usage habits, and a uniform and fixed heat exchange characteristic cannot achieve differentiated services.

[0005] Therefore, an air source heat pump heat exchange system is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing an air source heat pump heat exchange system.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an air source heat pump heat exchange system, including a heat exchange tank, a heat exchange cylinder fixedly connected to the inner side of the heat exchange tank, insulation material filling the space between the heat exchange tank and the heat exchange cylinder, a plurality of front tubes equidistantly arranged on the front side of the heat exchange cylinder, a plurality of rear tubes equidistantly arranged on the rear side of the heat exchange cylinder, three heat exchange tubes fixedly connected between the plurality of front tubes and the plurality of rear tubes, and the heat exchange tubes are fixedly connected through the heat exchange cylinder, an inlet pipe is fixedly connected between the side walls of the front tubes, an outlet pipe is fixedly connected between the side walls of the rear tubes, an L-shaped tube is fixedly connected to the inner side of the heat exchange tank relative to the lower position of the heat exchange cylinder, an adjusting plate is rotatably connected to the inner side of the heat exchange cylinder relative to the heat exchange tubes, an adjusting mechanism on the heat exchange cylinder for flipping the position of the adjusting plate, three upper guide blocks are fixedly connected to the inner wall of the heat exchange cylinder near the longitudinal end of the L-shaped tube, and a pair of lower guide blocks are fixedly connected to the other side of the inner wall of the heat exchange cylinder.

[0008] In the above technical solution, the lower guide block is further disposed between the upper guide blocks, and the sidewalls of the three upper and lower guide blocks are all fixedly connected to the outer wall of the heat exchange tube.

[0009] In the above technical solution, the heat exchange cylinder is further provided with an upper water inlet on the side near the longitudinal end of the L-shaped tube, and the upper water inlet is provided through the inner wall of the L-shaped tube. A pair of upper electric gate valves are fixedly connected through the transverse end of the L-shaped tube and the inner side of the heat exchange cylinder. The L-shaped tube is provided with a lower electric gate valve for controlling the opening and closing of the upper water inlet. A water outlet pipe is fixedly connected through the side wall of the heat exchange cylinder. The water outlet pipe is located above the upper water inlet. Two upper guide blocks are located next to the upper water inlet and the water outlet pipe, and another upper guide block is located in the middle of the inner wall of the heat exchange cylinder.

[0010] In the above technical solution, the adjusting mechanism further includes an upper electric telescopic cylinder and a rack. A pair of racks are provided. A rotating shaft passing through the heat exchange cylinder is fixedly connected to the middle of the front side of the adjusting plate. The rotating shaft is rotatably and sealed to the front side of the heat exchange cylinder. A gear is fixedly connected to the front side of the rotating shaft. The rack is longitudinally slidably connected to the front side of the heat exchange cylinder. A connecting plate is fixedly connected between the top ends of the racks. The upper electric telescopic cylinder is fixedly connected to the top end of the front side of the heat exchange cylinder. The output end of the upper electric telescopic cylinder is fixedly connected to the top end of the connecting plate.

[0011] In the above technical solution, a lower block is provided on one side of the bottom end of the adjustment plate, and an upper block is provided on the other side of the top end of the adjustment plate. The upper block and the lower block are fixedly connected to the side wall of the corresponding heat exchange tube, and the two ends of the adjustment plate near the upper block are inclined.

[0012] In the above technical solution, a lower touch sensor is fixedly connected to the front side of the heat exchange cylinder relative to the position below one of the racks, and an upper touch sensor is fixedly connected to the top of the front side of the heat exchange cylinder. The upper touch sensor is located above the connecting plate.

[0013] In the above technical solution, further, grooves are provided on both the upper and lower sides of the adjusting plate, and guide plates are rotatably connected to the inner sides of the grooves. A top groove is provided on the front side of the adjusting plate. A rotating rod is fixedly connected to the rotation point on the front side of the guide plate. A push plate is fixedly connected to the front side of the rotating rod through the top groove. A round rod is fixedly connected to the front side of the push plate. The front side of the round rod is set as a smooth arc surface. A receiving groove is provided on the inner side of the heat exchange cylinder. A right-angled block with an inclined surface is slidably connected to the inner side of the receiving groove. A sliding rod is fixedly connected to the top of the right-angled block, and the sliding rod is sealed and slidably connected to the heat exchange cylinder. A connecting frame is fixedly connected between the front sides of the sliding rods. A pair of lower electric telescopic cylinders are fixedly connected to the front side of the heat exchange tank. The output end of the lower electric telescopic cylinder passes through the heat exchange tank and is fixedly connected to the front side of the connecting frame.

[0014] In the above technical solution, the storage slot is further positioned on the front side of the round rod after the adjustment plate is rotated 90 degrees. A return spring is fixedly connected between the side wall of the push plate and the side wall of the top groove. An arc groove is opened on the side wall of the top groove, and a guide rod inserted into the arc groove is fixedly connected to the side wall of the push plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the setting of the adjustment plate and adjustment mechanism, can be flexibly adjusted according to the usage of the air source heat pump heat exchange system. In mild climates or scenarios where users have a need for rapid heating, when using the longitudinal short path flow channel mode, the floor heating water passes through the tube array quickly in the longitudinal direction, greatly shortening the residence time and reducing the flow resistance. In severe cold conditions or scenarios with large temperature difference requirements, when using the serpentine long path flow channel mode, the floor heating water flows meanderingly in the heat exchange cylinder, significantly extending the residence time, so that the low temperature return water and the high temperature refrigerant can fully contact and exchange heat, which can maximize the utilization of the heat exchange area, increase the temperature rise of a single cycle, reduce the load on the heat pump compressor, achieve high energy efficiency and stable operation, and realize rapid heating and flexible adjustment.

[0016] 2. This invention, through the design of a guide plate and a lower electric telescopic cylinder, enables the guide plate at the front of the adjustment plate to open in the longitudinal short-path mode, converting the water flow from longitudinal direct injection to directional flow towards the heat exchange tubes on both sides. This structure allows the incoming water to directly scour the boundary layer of the tube wall, disrupting the laminar flow region with high thermal resistance and enhancing the local convective heat transfer coefficient. At the same time, the lateral flow creates a flow-around scouring effect, effectively suppressing the formation of dead zones in the flow between tubes and improving the heat transfer uniformity of the tube array. In addition, the opened guide plate acts as a guide fin, expanding the effective heat transfer area, so that the short-path mode can still achieve heat transfer efficiency close to that of the long-path mode while maintaining low resistance characteristics, thus achieving a balance between rapid response and efficient heat transfer.

[0017] 3. Through the design of the upper electric telescopic cylinder, rack and pinion, and adjustment structure, this invention can control the upper electric telescopic cylinder to start in the longitudinal short path mode, drive the adjustment plate to flip back and forth, thereby stirring the floor heating water in the heat exchange cylinder, further improving the heat exchange efficiency of the device, and enabling different operating modes under different conditions, providing more energy-saving operating modes. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural diagram of the heat exchanger cylinder from the front of the present invention; Figure 2 is a three-dimensional structural diagram of the heat exchanger cylinder from the front with a partial cross-section; Figure 3 is a three-dimensional structural diagram of the heat exchanger cylinder from a partial bottom view; Figure 4 is a partially enlarged structural diagram of point A in Figure 3 of the present invention; Figure 5 is a three-dimensional structural diagram of the heat exchanger cylinder from the front with a partial cross-section; Figure 6 is a schematic diagram of the overall appearance structure of the lower electric telescopic cylinder and connecting frame of the present invention; Figure 7 is a partially enlarged structural diagram of point B in Figure 6 of the present invention; Figure 8 is a three-dimensional structural diagram of the heat exchanger cylinder from the front with a partial cross-section; Figure 9 is a partially cross-sectional and enlarged structural diagram of the heat exchanger cylinder and heat exchange tube of the present invention; Figure 10 is a three-dimensional structural diagram of the adjusting plate, gear, and rack of the present invention when they are erected; Figure 11 is a three-dimensional structural diagram of the adjusting plate and guide plate of the present invention after being erected with a partial cross-section and separation.

[0019] In the diagram: 1. Heat exchange tank; 2. Heat exchange cylinder; 3. Front tube; 4. Rear tube; 5. Heat exchange tube; 6. Inlet pipe; 7. Outlet pipe; 8. L-shaped pipe; 9. Adjusting plate; 10. Upper guide block; 11. Lower guide block; 12. Upper inlet; 13. Upper electric gate valve; 14. Lower electric gate valve; 15. Outlet pipe; 16. Upper electric telescopic cylinder; 17. Rack; 18. Rotating shaft; 19. Gear; 20. 21. Connecting plate; 22. Lower block; 23. Upper block; 24. Lower touch sensor; 25. Upper touch sensor; 26. Groove; 27. Guide plate; 28. Top groove; 29. ​​Rotating rod; 30. Push plate; 31. Round rod; 32. Storage groove; 33. Right-angle block; 34. Slide rod; 35. Connecting frame; 36. Lower electric telescopic cylinder; 37. Return spring; 38. Arc groove; 39. Guide rod. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0022] In actual use, it was found that there are significant dynamic differences in actual heating scenarios. On the one hand, user load demand changes continuously with outdoor temperature, usage time and building characteristics. Fixed flow channels can hardly meet the needs of high-efficiency heat exchange in severe cold conditions and rapid response in mild conditions. On the other hand, different users in a multi-user system have different heat preferences and usage habits. A uniform and fixed heat exchange characteristic cannot achieve differentiated services. To solve the above problems, the following structure was invented.

[0023] As shown in Figures 1-11, an air source heat pump heat exchange system includes a heat exchange tank 1. A heat exchange cylinder 2 is fixedly connected to the inner side of the heat exchange tank 1. Insulation material is filled between the heat exchange tank 1 and the heat exchange cylinder 2. Several front pipes 3 are equidistantly arranged on the front side of the heat exchange cylinder 2, and several rear pipes 4 are equidistantly arranged on the rear side of the heat exchange cylinder 2. Three heat exchange tubes 5 are fixedly connected between the front pipes 3 and the rear pipes 4, and the heat exchange tubes 5 penetrate and are fixedly connected to the heat exchange cylinder 2. A liquid inlet pipe 6 is fixedly connected between the side walls of the front pipes 3 and the side walls of the rear pipes 4. The outlet pipe 7 is fixedly connected to the inlet pipe 6 and the outlet pipe 7, which are respectively connected to the inlet and outlet ends of the air source heat pump. The heat medium flows out from the air source heat pump, enters the front pipe 3 through the inlet pipe 6, and then flows into multiple heat exchange pipes 5. Then it flows back into the air source heat pump through the rear pipe 4 and the outlet pipe 7. During this process, since the heat exchange pipe 5 is in contact with the water source in the heat exchange cylinder 2, the heat in the heat medium in the heat exchange pipe 5 will be transferred to the water source in the heat exchange cylinder 2, so that the water source flowing out of the heat exchange cylinder 2 becomes hot water.

[0024] An L-shaped tube 8 is fixedly connected to the inner side of heat exchange tank 1 relative to the lower position of heat exchange cylinder 2. Adjusting plates 9 are rotatably connected to the inner side of heat exchange cylinder 2 relative to heat exchange tube 5. An adjustment mechanism on heat exchange cylinder 2 is used to rotate the position of the adjusting plates 9. Three upper guide blocks 10 are fixedly connected to the inner wall of heat exchange cylinder 2 near the longitudinal end of the L-shaped tube 8, and a pair of lower guide blocks 11 are fixedly connected to the other side of the inner wall of heat exchange cylinder 2. The lower guide blocks 11 are positioned between the upper guide blocks 10. The sidewalls of the three upper guide blocks 10 and the lower guide blocks 11 are all fixedly connected to the outer wall of heat exchange tube 5. An upper water inlet 12 is opened on the side of heat exchange cylinder 2 near the longitudinal end of the L-shaped tube 8, and the upper water inlet 12 penetrates the inner wall of the L-shaped tube 8. A pair of upper electric gate valves 13 are fixedly connected through the transverse end of the L-shaped tube 8 to the inner side of heat exchange cylinder 2. The water source in the underfloor heating system is pressurized by a water pump, causing... Water enters the heat exchange cylinder 2 through the L-shaped pipe 8. An upper electric gate valve 13 controls the connection between the horizontal end of the L-shaped pipe 8 and the heat exchange cylinder 2. The L-shaped pipe 8 is equipped with a lower electric gate valve 14 to control the opening and closing of the upper inlet 12. The lower electric gate valve 14 controls the connection between the upper inlet 12 and the L-shaped pipe 8, and adjusts the direction of water flow in the L-shaped pipe 8 to provide better heat exchange efficiency for the subsequent heat exchange process. A water outlet pipe 15 is fixedly connected through the side wall of the heat exchange cylinder 2. After the water entering the heat exchange cylinder 2 exchanges energy with the heat exchange pipe 5, it flows back to the underfloor heating through the water outlet pipe 15. The water outlet pipe 15 is located above the upper inlet 12. Two upper guide blocks 10 are located next to the upper inlet 12 and the water outlet pipe 15, and another upper guide block 10 is located in the middle of the inner wall of the heat exchange cylinder 2.

[0025] The adjustment mechanism includes an upper electric telescopic cylinder 16 and a rack 17. A pair of racks 17 are provided. A rotating shaft 18 that passes through the heat exchange cylinder 2 is fixedly connected to the middle of the front side of the adjustment plate 9. The rotating shaft 18 is sealed and rotatably connected to the front side of the heat exchange cylinder 2. A gear 19 is fixedly connected to the front side of the rotating shaft 18. The rack 17 is longitudinally slidably connected to the front side of the heat exchange cylinder 2. A connecting plate 20 is fixedly connected between the top ends of the rack 17. The upper electric telescopic cylinder 16 is fixedly connected to the top end of the front side of the heat exchange cylinder 2. The output end of the upper electric telescopic cylinder 16 is fixedly connected to the top end of the connecting plate 20.

[0026] Each of the bottom sides of the regulating plate 9 is provided with a lower block 21, and each of the top sides of the regulating plate 9 is provided with an upper block 22. The upper block 22 and the lower block 21 are fixedly connected to the side wall of the corresponding heat exchange tube 5. By setting the upper block 22 and the lower block 21, when the regulating plate 9 rotates between the heat exchange tubes 5, the upper block 22 and the lower block 21 are squeezed to ensure the sealing effect between the heat exchange tubes 5 (it should be noted that absolute sealing is not required here, it is only necessary to ensure that the water flow has a guiding effect. A small amount of water flows out from the sealing between the heat exchange tube 5 and the regulating plate 9, which will not affect the overall heat exchange effect). The two ends of the regulating plate 9 near the upper block 22 are inclined. By setting the side wall of the regulating plate 9 inclined, the water flow can be guided to both sides when the regulating plate 9 is flipped over.

[0027] A lower contact sensor 23 is fixedly connected to the front side of the heat exchange cylinder 2, positioned below one of the racks 17. An upper contact sensor 24 is fixedly connected to the top of the front side of the heat exchange cylinder 2. The upper contact sensor 24 is positioned above the connecting plate 20. Both the lower contact sensor 23 and the upper contact sensor 24 are electrically connected to the lower electric gate valve 14 and the upper electric gate valve 13 via a controller. During equipment operation, in mild climates or scenarios requiring rapid temperature increases by the user, when a longitudinal short-path flow channel mode is needed, the upper electric telescopic cylinder 16 is activated. The motor drives the connecting plate 20 and the two racks 17 to move upwards, which in turn drives multiple meshing gears 19 to rotate. Simultaneously, the rotating shaft 18 drives the adjusting plate 9 to rotate, causing the adjusting plate 9 to rotate 90 degrees. This adjusts the adjusting plate 9 between the heat exchange tubes 5 from a horizontal state to a vertical state, so that the inclined end of the adjusting plate 9 faces the L-shaped tube 8. At the same time, the connecting plate 20 touches the upper touch sensor 24, which then transmits a signal to the controller. The controller controls the lower electric gate valve 14 to close and the two upper electric gate valves 13 to open. Water entering from the L-shaped pipe 8 then flows from the bottom of the heat exchange cylinder 2, and then flows rapidly through the heat exchange tubes 5 to the outlet pipe 15. In extremely cold conditions or scenarios requiring large temperature differences, when using a serpentine long-path flow channel mode, the upper electric telescopic cylinder 16 is activated to drive the connecting plate 20 downwards, which in turn drives the rack 17 downwards, thereby driving the meshing gears 19 to rotate in the opposite direction. This drives the adjusting plate 9 to flip and reset, blocking the flow between the heat exchange tubes 5. At this time, the water inside the heat exchange cylinder 2 is cooled by the heat exchange tubes 5, the upper guide block 10, the lower guide block 11, and... The regulating plate 9 is isolated into a serpentine long path flow channel. At the same time, the rack 17 touches the lower touch sensor 23, and then transmits the signal to the controller. The controller controls the upper electric gate valve 13 to close and the lower electric gate valve 14 to open. As a result, the water in the L-shaped pipe 8 will flow into the heat exchange cylinder 2 through the upper inlet 12. Then, the floor heating water flows in a meandering manner in the heat exchange cylinder 2, which significantly prolongs the residence time and allows the low temperature return water to fully contact the high temperature refrigerant for heat exchange. This maximizes the utilization of the heat exchange area and increases the temperature rise of a single cycle. Finally, it is discharged through the outlet pipe 15.

[0028] In summary, the above structural design allows for flexible adjustment based on the usage of the air source heat pump heat exchange system. In mild climates or scenarios requiring rapid heating, the longitudinal short-path flow mode allows the underfloor heating water to flow quickly along the tube array, significantly shortening the residence time and reducing flow resistance. In extremely cold conditions or scenarios requiring large temperature differences, the serpentine long-path flow mode allows the underfloor heating water to flow meanderingly within the heat exchange cylinder 2, significantly extending the residence time and ensuring sufficient contact and heat exchange between the low-temperature return water and the high-temperature refrigerant. This maximizes the utilization of the heat exchange area, increases the temperature rise in a single cycle, reduces the load on the heat pump compressor, achieves high-efficiency and stable operation, and enables rapid heating and flexible adjustment.

[0029] During operation in the longitudinal short path flow channel mode, the upper electric telescopic cylinder 16 can be controlled to start and drive the connecting plate 20 and the rack 17 to move up and down reciprocally (the moving distance is between the upper touch sensor 24 and the lower touch sensor 23, ensuring that the rack 17 and the connecting plate 20 will not touch the upper touch sensor 24 and the lower touch sensor 23), thereby driving the meshing gear 19 to rotate back and forth, thereby driving the adjusting plate 9 to flip back and forth through the rotating shaft 18, which can stir the floor heating water in the heat exchange cylinder 2 and further improve the heat exchange efficiency of the device.

[0030] In summary, through the design of the above structure, the upper electric telescopic cylinder 16 can be started in the longitudinal short path mode, driving the adjusting plate 9 to flip back and forth, thereby stirring the floor heating water in the heat exchange cylinder 2, further improving the heat exchange efficiency of the device, and enabling different operating modes under different conditions, providing more energy-saving operating modes.

[0031] Based on the above embodiments, it was found during use that in the longitudinal short-circuit mode, the water flow in the longitudinal channel will pass through the gap between the tubes in a straight line, making it difficult to effectively flush the wall of the heat exchange tube 5, resulting in increased boundary layer thermal resistance and decreased heat exchange efficiency. At the same time, flow dead zones are easily formed between the tubes, causing uneven temperature distribution and local scaling. Furthermore, it is impossible to flexibly switch the flow state according to the operating conditions, resulting in poor system adaptability. To solve the above problems, further improvements were made to the above structure.

[0032] The adjusting plate 9 has grooves 25 on both the upper and lower sides. The inner side of each groove 25 is rotatably connected to a guide plate 26. The front side of the adjusting plate 9 has a top groove 27. The rotation point on the front side of the guide plate 26 is fixedly connected to a rotating rod 28. The front side of the rotating rod 28 passes through the top groove 27 and is fixedly connected to a push plate 29. The front side of the push plate 29 is fixedly connected to a round rod 30. The front side of the round rod 30 is set as a smooth arc surface. The heat exchange cylinder 2 has a storage groove 31 on the inner side. The inner side of the storage groove 31 is slidably connected to a right-angle block 32 with an inclined surface. The top of the right-angle block 32 is fixedly connected to a sliding rod 33, and the sliding rod 33 is sealed and slidably connected to the heat exchange cylinder 2. The front sides of the sliding rods 33 are fixedly connected to a connecting frame 34. The front side of the heat exchange tank 1 is fixedly connected to a pair of lower electric telescopic cylinders 35. The output end of the lower electric telescopic cylinder 35 passes through the heat exchange tank 1 and is fixedly connected to the front side of the connecting frame 34.

[0033] The storage slot 31 is located in front of the round rod 30 after the adjusting plate 9 is rotated 90 degrees. A return spring 36 is fixedly connected between the side wall of the push plate 29 and the side wall of the top slot 27. The side wall of the top slot 27 is provided with an arc groove 37. A guide rod 38 inserted into the arc groove 37 is fixedly connected to the side wall of the push plate 29. The arc groove 37 and the guide rod 38 can guide and position the flipping of the guide plate 26.

[0034] During operation in the longitudinal short-path flow channel mode, the controllable lower electric telescopic cylinder 35 is activated to drive the connecting frame 34 to move backward, thereby driving multiple sliding rods 33 and right-angle blocks 32 to move backward. Before this, the round rod 30 on the adjusting plate 9 rotates to the rear position of the right-angle block 32. Then, through the backward movement of the right-angle block 32, the inclined surface of the right-angle block 32 will squeeze the arc surface of the round rod 30, pushing the round rod 30, the push plate 29, the rotating rod 28 and the guide plate 26 to rotate around the hinge (because the push plate 29 and the round rod 30 only It can rotate around the hinge of the guide plate 26. Therefore, when the right-angle block 32 moves backward, it will squeeze the round rod 30 to flip upward, thereby driving the push plate 29 to rotate, and stretching the reset spring 36. At the same time, it will drive the guide rod 38 to slide in the arc groove 37, so that the guide plate 26 rotates out of the groove 25, and the guide plates 26 on both sides of the adjusting plate 9 are in a tilted state, thereby converting the water flow from longitudinal direct injection to directional flow to the heat exchange tubes 5 on both sides, improving the heat exchange effect in the longitudinal short path flow channel mode.

[0035] In summary, through the design of the above structure, in the longitudinal short path mode, the front guide plate 26 of the regulating plate 9 is opened, which changes the water flow from longitudinal direct injection to directional flow towards the heat exchange tubes 5 on both sides. This structure allows the inlet water to directly scour the boundary layer of the tube wall, destroying the laminar flow region with high thermal resistance and enhancing the local convective heat transfer coefficient. At the same time, the lateral flow creates a flow around the scour effect, effectively suppressing the formation of dead zones in the flow between tubes and improving the heat transfer uniformity of the tube array. In addition, the opened guide plate 26 acts as a guide fin, expanding the effective heat transfer area, so that the short path mode can still achieve heat transfer efficiency close to that of the long path mode while maintaining low resistance characteristics, thus achieving a balance between rapid response and efficient heat transfer.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0037] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. An air source heat pump heat exchange system, comprising a heat exchange tank (1), characterized in that: A heat exchange cylinder (2) is fixedly connected to the inside of the heat exchange tank (1). Insulation material is filled between the heat exchange tank (1) and the heat exchange cylinder (2). Several front tubes (3) are equidistantly arranged on the front side of the heat exchange cylinder (2), and several rear tubes (4) are equidistantly arranged on the rear side of the heat exchange cylinder (2). Three heat exchange tubes (5) are fixedly connected between the front tubes (3) and the rear tubes (4), and the heat exchange tubes (5) are fixedly connected through the heat exchange cylinder (2). An inlet pipe (6) is fixedly connected between the side walls of the front tubes (3). The rear tubes (4)... A liquid outlet pipe (7) is fixedly connected between the side walls. An L-shaped pipe (8) is fixedly connected to the inner side of the heat exchange tank (1) relative to the lower position of the heat exchange cylinder (2). An adjusting plate (9) is rotatably connected to the inner side of the heat exchange cylinder (2) relative to the heat exchange tube (5). An adjusting mechanism for flipping the position of the adjusting plate (9) is on the heat exchange cylinder (2). Three upper guide blocks (10) are fixedly connected to the inner wall of the heat exchange cylinder (2) near the longitudinal end of the L-shaped pipe (8). A pair of lower guide blocks (11) are fixedly connected to the other side of the inner wall of the heat exchange cylinder (2).

2. The air source heat pump heat exchange system according to claim 1, characterized in that: The lower guide block (11) is disposed between the upper guide blocks (10), and the side walls of the three upper guide blocks (10) and the lower guide block (11) are fixedly connected to the outer wall of the heat exchange tube (5).

3. The air source heat pump heat exchange system according to claim 1, characterized in that: The heat exchange cylinder (2) has an upper water inlet (12) on one side near the longitudinal end of the L-shaped tube (8), and the upper water inlet (12) is set through the inner wall of the L-shaped tube (8). A pair of upper electric gate valves (13) are fixedly connected through the transverse end of the L-shaped tube (8) and the inner side of the heat exchange cylinder (2). The L-shaped tube (8) is provided with a lower electric gate valve (14) for controlling the opening and closing of the upper water inlet (12). A water outlet pipe (15) is fixedly connected through the side wall of the heat exchange cylinder (2). The water outlet pipe (15) is located above the upper water inlet (12). Two upper guide blocks (10) are located next to the upper water inlet (12) and the water outlet pipe (15), and another upper guide block (10) is located in the middle of the inner wall of the heat exchange cylinder (2).

4. The air source heat pump heat exchange system according to claim 1, characterized in that: The adjustment mechanism includes an upper electric telescopic cylinder (16) and a rack (17). A pair of racks (17) are provided. A rotating shaft (18) that passes through the heat exchange cylinder (2) is fixedly connected to the middle of the front side of the adjustment plate (9). The rotating shaft (18) is sealed and rotatably connected to the front side of the heat exchange cylinder (2). A gear (19) is fixedly connected to the front side of the rotating shaft (18). The rack (17) is longitudinally slidably connected to the front side of the heat exchange cylinder (2). A connecting plate (20) is fixedly connected between the top ends of the racks (17). The upper electric telescopic cylinder (16) is fixedly connected to the top end of the front side of the heat exchange cylinder (2). The output end of the upper electric telescopic cylinder (16) is fixedly connected to the top end of the connecting plate (20).

5. The air source heat pump heat exchange system according to claim 1, characterized in that: The adjustment plate (9) has a lower block (21) on one side of its bottom end and an upper block (22) on the other side of its top end. The upper block (22) and the lower block (21) are fixedly connected to the side wall of the corresponding heat exchange tube (5). The adjustment plate (9) is inclined at both ends on the side near the upper block (22).

6. The air source heat pump heat exchange system according to claim 4, characterized in that: A lower touch sensor (23) is fixedly connected to the front side of the heat exchange cylinder (2) relative to the position below one of the racks (17), and an upper touch sensor (24) is fixedly connected to the top of the front side of the heat exchange cylinder (2). The upper touch sensor (24) is located above the connecting plate (20).

7. The air source heat pump heat exchange system according to claim 1, characterized in that: The adjusting plate (9) has grooves (25) on both the upper and lower sides. A guide plate (26) is rotatably connected to the inner side of each groove (25). A top groove (27) is provided on the front side of the adjusting plate (9). A rotating rod (28) is fixedly connected to the rotation point on the front side of the guide plate (26). A push plate (29) is fixedly connected to the front side of the rotating rod (28) through the top groove (27). A round rod (30) is fixedly connected to the front side of the push plate (29). The front side of the round rod (30) is set as a smooth arc surface. The inner side of the heat exchange cylinder (2) A storage slot (31) is provided, and a right-angled block (32) with an inclined surface is slidably connected to the inner side of the storage slot (31). A slide rod (33) is fixedly connected to the top of the right-angled block (32), and the slide rod (33) is sealed and slidably connected to the heat exchange cylinder (2). A connecting frame (34) is fixedly connected between the front sides of the slide rod (33). A pair of lower electric telescopic cylinders (35) are fixedly connected to the front side of the heat exchange tank (1). The output end of the lower electric telescopic cylinder (35) passes through the heat exchange tank (1) and is fixedly connected to the front side of the connecting frame (34).

8. The air source heat pump heat exchange system according to claim 7, characterized in that: The storage slot (31) is located in front of the round rod (30) after the adjustment plate (9) is rotated ninety degrees. A reset spring (36) is fixedly connected between the side wall of the push plate (29) and the side wall of the top groove (27). An arc groove (37) is opened on the side wall of the top groove (27). A guide rod (38) inserted into the arc groove (37) is fixedly connected to the side wall of the push plate (29).

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