A plurality of air source heat pump units and control system

Abstract

The application belongs to the technical field of air heat source pumps, and particularly relates to a plurality of air source heat pump units and a control system, which comprises a shell, heating fins and an exchange water pipe arranged in the shell, the exchange water pipe being inserted into the heating fins in a serpentine shape, a plurality of air suction fans rotatably mounted on the outer surfaces of the two ends of the shell, a grid plate arranged on one side of the shell, two first conveying pipes connected to the two sides of the heating fins at the upper end and the lower end respectively, and a plurality of water tanks, one side of each water tank being provided with a second fixing rod fixedly mounted, a sliding plate being slidably connected to the second fixing rod, two exchange mechanisms being mounted on the sliding plate, one exchange mechanism being fixedly mounted on one end of the sliding plate, and the other exchange mechanism being slidably mounted on the sliding plate. In the application, the water tank in the idle state can buffer the time difference generated when hot water is continuously used, and users can use the water tank filled with hot water in the idle state at any time.

Description

Technical Field

[0001] This invention belongs to the field of air source heat pump technology, and particularly relates to a multi-air source heat pump unit and its control system. Background Technology

[0002] Air source heat pumps operate on the reverse Carnot cycle principle. They use a compressor system to absorb heat from the air to produce hot water. The compressor compresses the refrigerant, and the heated refrigerant passes through a condenser in the water tank to produce hot water. After heat exchange, the refrigerant returns to the compressor for the next cycle. During this process, heat from the air is absorbed by the evaporator and transferred to the refrigerant, which is then transferred to the water to produce hot water.

[0003] In existing technologies, air source heat pumps typically heat cold water in a water tank into hot water by displacement. However, when the water in the tank is used up, it needs to be refilled before the water can be heated. This means that there is no hot water available when the tank is being refilled, which is inconvenient for environments with high water demand. Summary of the Invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a multi-air source heat pump unit and a control system.

[0005] This invention proposes a multi-air source heat pump unit, comprising: The outer casing contains a heating element and a water exchange pipe. The water exchange pipe is serpentinely inserted inside the heating element. Multiple air intake fans are rotatably mounted on the outer surfaces of both ends of the outer casing. A mesh plate is provided on one side of the outer casing. Two first delivery pipes are connected to the upper and lower ends of both sides of the heating element. Multiple water tanks are provided, and a second fixing rod is fixedly installed on one side of each water tank. A sliding plate is slidably connected to the second fixing rod. Two exchange mechanisms are installed on the sliding plate. One exchange mechanism is fixedly installed at one end of the sliding plate, and the other exchange mechanism is slidably installed on the sliding plate. Each water tank is provided with a connection port, and the exchange mechanism is used to communicate with the connection port. Two compressors are respectively installed on both sides of multiple water tanks. The first delivery pipe is connected to the compressors, and the exchange water pipe is connected to the connecting pipe.

[0006] Preferably, a fan motor corresponding to the intake fan is fixedly installed inside the housing, and the drive end of the fan motor is fixedly connected to the intake fan.

[0007] Preferably, the slide plate has a groove, and a slider is slidably installed in the groove. One of the exchange mechanisms is installed on the slider. A threaded rod is also rotatably installed in the groove. The threaded rod passes through the slider. A drive motor is provided at one end of the slide plate, and the drive end of the drive motor is fixedly connected to the threaded rod.

[0008] Preferably, the exchange mechanism includes a movable plate, a first rotating plate, and a second rotating plate. The movable plate is slidably connected to one end of the slider. One end of the first rotating plate is rotatably connected to the upper end of the movable plate. The other end of the first rotating plate is rotatably connected to the second rotating plate. The second rotating plate is rotatably connected to the slider. A small cylinder is fixedly installed on the slider below the first rotating plate. A connecting block is fixedly connected to the driving end of the small cylinder. An opening is provided on the first rotating plate, and the connecting block is slidably installed in the opening.

[0009] Preferably, a retaining sleeve is fixedly connected to the lower end of the movable plate, a connecting tube is fixedly inserted into the retaining sleeve, a second conveying tube is inserted into the connecting port, the retaining sleeve is used to snap onto the outer surface of the second conveying tube, and the connecting tube is fixedly inserted into the retaining sleeve.

[0010] Preferably, a limiting block is provided at one end of the slider on the moving plate, and a limiting groove is provided on the moving plate, and the limiting block slides along the limiting groove.

[0011] Preferably, a side groove is provided on one side of the connection port, and a partition block is slidably installed in the side groove. The upper surface of the partition block is inclined, and the partition block is slidably connected to the inner wall of the side groove by a spring.

[0012] Preferably, a first fixed rod is fixedly installed below the second fixed rod, and a telescopic cylinder is rotatably installed on the first fixed rod. The drive end of the telescopic cylinder is fixedly connected to a telescopic shaft, and the upper end of the telescopic shaft is rotatably connected to the side of the slide plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The position of the exchange mechanism can be changed, so as to effectively select the water tank according to the actual supply and demand needs. When the hot water in one tank is full, it can be replaced with another water tank in time. During the use of hot water, it is guaranteed that hot water can be supplied in real time. Since two exchange mechanisms are set, there will always be a water tank in an idle state. The water tank in the idle state can buffer the time difference caused by the continuous use of hot water. Users can always use the water tank that is full of hot water in the idle state. 2. Both compressors can be used simultaneously or one can be used at a time. The heating element is equipped with two inlet and outlet pipes, which can be selected according to the hot water supply and demand. When one compressor is in use and the heat supply is insufficient, the other compressor will be started to provide heat. When one compressor fails, the other compressor can provide a timely replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a multi-air source heat pump unit proposed in this invention; Figure 2 This is a side view of a multi-air source heat pump unit proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of a multi-air source heat pump unit proposed in this invention; Figure 4 This is a schematic diagram of the installation structure of the water tank and the exchange mechanism; Figure 5 This is a schematic diagram of the installation structure of the heating element and the water exchange pipe; Figure 6 A schematic diagram of the installation structure of the switching mechanism; Figure 7 This is a detailed structural diagram of the exchange mechanism.

[0015] In the diagram: 1. Outer shell, 2. Suction fan, 3. Slide groove, 4. Compressor, 5. Water tank, 6. Second fixed rod, 7. Slide plate, 8. Slider, 9. Exchange mechanism, 10. First fixed rod, 11. Telescopic cylinder, 12. Telescopic shaft, 13. Threaded rod, 14. Mesh plate, 15. Connection port, 16. Fan motor, 17. Heating element, 18. Water exchange pipe, 19. First conveying pipe, 20. Moving plate, 21. Side groove, 22. Partition block, 23. Spring, 24. Connecting pipe, 25. First rotating plate, 26. Second rotating plate, 27. Opening, 28. Small cylinder, 29. Sleeve, 30. Conveying pipe, 31. Limiting groove, 32. Limiting block, 33. Connecting block. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Reference Figures 1-7 A multi-air source heat pump unit, comprising: The outer casing 1 contains a heating element 17 and a water exchange pipe 18. The water exchange pipe 18 is serpentinely inserted into the heating element 17. Multiple suction fans 2 are rotatably mounted on the outer surfaces of both ends of the outer casing 1. A fan motor 16 corresponding to the suction fan 2 is fixedly installed inside the outer casing 1. The drive end of the fan motor 16 is fixedly connected to the suction fan 2. The fan motor 16 drives the suction fan 2 to rotate through the drive end. As the suction fan 2 rotates, it draws external air into the outer casing 1 and then absorbs the heat energy of the air. A mesh plate 14 is provided on one side of the outer casing 1. Two first delivery pipes 19 are connected to the upper and lower ends of both sides of the heating element 17. Multiple water tanks 5 are provided. A second fixed rod 6 is fixedly installed on one side of each water tank 5. A slide plate 7 is slidably connected to the second fixed rod 6. A slide groove 3 is provided on the slide plate 7. A slider 8 is slidably installed in the slide groove 3. One of the exchange mechanisms 9 is installed on the slider 8. A threaded rod 13 is also rotatably installed in the slide groove 3. The threaded rod 13 passes through the slider 8. A drive motor is provided at one end of the slide plate 7. The drive end of the drive motor is fixedly connected to the threaded rod 13. When it is necessary to change the position of the exchange mechanism 9, the drive motor drives the threaded rod 13 to rotate through the drive end, thereby enabling the slider 8 to move back and forth in the slide groove 3. Two exchange mechanisms 9 are installed on the slide plate 7. One exchange mechanism 9 is fixedly installed at one end of the slide plate 7, and the other exchange mechanism 9 is slidably installed on the slide plate 7. Each water tank 5 is provided with a connection port 15. The exchange mechanism 9 is used to communicate with the connection port 15. The exchange mechanism 9 includes a movable plate 20, a first rotating plate 25, and a second rotating plate 26. The movable plate 20 is slidably connected to one end of the slider 8. One end of the first rotating plate 25 is rotatably connected to the upper end of the movable plate 20, and the other end of the first rotating plate 25 is rotatably connected to the second rotating plate 26. The second rotating plate 26 is rotatably connected to the slider 8. A small cylinder 28 is fixedly installed on the slider 8 below the first rotating plate 25. A connecting block 33 is fixedly connected to the drive end of the small cylinder 28. An opening 27 is provided on the first rotating plate 25, and the connecting block 33 is slidably installed in the opening 27. When the small cylinder 28 pulls the connecting block 33 through the drive end, it pulls the first rotating plate 25, thereby changing the angle between the first rotating plate 25 and the second rotating plate 26. By changing the size of the angle between the first rotating plate 25 and the second rotating plate 26, the movable plate 20 can slide up and down relative to the slider 8. When the small cylinder 28 stretches the connecting block 33, the connecting block 33 can slide on the opening 27 to accommodate the tilted first rotating plate 25. Two compressors 4 are respectively installed on both sides of multiple water tanks 5. The first delivery pipe 19 is connected to the compressor 4, and the water exchange pipe 18 is connected to the connecting pipe 24.

[0018] A retaining sleeve 29 is fixedly connected to the lower end of the movable plate 20. A connecting tube 24 is fixedly inserted into the retaining sleeve 29, and a second conveying tube 30 is inserted into the connecting port 15. The retaining sleeve 29 is used to snap onto the outer surface of the second conveying tube 30. When the movable plate 20 moves downward, it will drive the retaining sleeve 29 to move downward, thereby inserting the connecting tube 24 into the second conveying tube 30. When inserted, the retaining sleeve 29 will fit onto the surface of the second conveying tube 30. The retaining sleeve 29 plays a role in reinforcing the position of the connecting tube 24. A limit block 32 is provided at one end of the slider 8 on the moving plate 20. A limit groove 31 is provided on the moving plate 20. The limit block 32 slides along the limit groove 31 and slides on the limit groove 31 to limit the movement and ensure that the moving plate 20 moves up and down in a vertical trajectory. A side groove 21 is provided on one side of the connection port 15. A partition block 22 is slidably installed in the side groove 21. The upper surface of the partition block 22 is inclined. The partition block 22 is slidably connected to the inner wall of the side groove 21 by a spring 23. When the second conveying pipe 30 is not in use, the partition block 22 can block the port of the second conveying pipe 30 under the elastic force of the spring 23. When it is needed, the partition block 22 can be pushed to one side when the connecting pipe 24 is pressed down. A first fixed rod 10 is fixedly installed below the second fixed rod 6. A telescopic cylinder 11 is rotatably installed on the first fixed rod 10. A telescopic shaft 12 is fixedly connected to the drive end of the telescopic cylinder 11. The upper end of the telescopic shaft 12 is rotatably connected to the side of the slide plate 7. When the telescopic cylinder 11 retracts the telescopic shaft 12, the slide plate 7 can move back and forth on the second fixed rod 6.

[0019] A control system for multiple air source heat pump units includes the following steps: Step S1: The fan motor 16 drives the intake fan 2 to rotate through the drive end. As the intake fan 2 rotates, it can draw air from the outside environment into the outer casing 1. When the air enters the outer casing 1, it will be delivered to one of the compressors 4. Through heat exchange, the refrigerant in the compressor 4 will absorb heat energy and evaporate from liquid to gas. The gaseous refrigerant contains a large amount of heat energy. Then, the gaseous refrigerant is introduced into the heating element 17 through the first delivery pipe 19. The first delivery pipe 19 is introduced from the lower side of the heating element 17. Cold water flows in the water exchange pipe 18. Under the action of heat exchange, the hot steam in the heating element 17 will affect the cold water in the water exchange pipe 18 as it evaporates upward, causing it to be heated into hot water. The heated hot water will be added to the corresponding water tank 5 through the connecting pipe 24 for storage. Step S2: The two compressors 4 can be used simultaneously or one of them can be used at a time. The heating element 17 is equipped with two inlet and outlet pipes, which can be selected according to the hot water supply and demand. When one compressor 4 is in use and the heat supply is insufficient, the other compressor 4 will be started to provide heat. When one compressor 4 fails, the other compressor 4 can provide a timely replacement. Step S3: Multiple water tanks 5 are set up. The water tanks 5 receive hot water through the exchange mechanism 9. The prepared hot water is transported to the water tanks 5 for storage through the exchange mechanism 9. There are only two exchange mechanisms 9 installed, and their positions can be changed. This allows for the effective selection of water tanks 5 according to actual supply and demand. When one water tank 5 is full of hot water, it can be replaced with another water tank 5 in a timely manner. During the use of hot water, it is ensured that hot water can be supplied in real time. Since only two exchange mechanisms 9 are set up, there will always be a water tank 5 in an idle state. The water tank 5 in the idle state can buffer the time difference caused by the continuous use of hot water. Users can always use the water tank 5 that is full of hot water in the idle state. The exchange mechanism 9, which is fixedly installed on the slide plate 7, moves in position through the telescopic cylinder 11. The telescopic cylinder 11 extends and retracts the telescopic shaft 12 through the drive end. As the telescopic shaft 12 extends and retracts, the slide plate 7 can move back and forth relative to the second fixed rod 6, thereby moving the fixedly installed exchange mechanism 9 in position. Another exchange mechanism 9 drives the threaded rod 13 to rotate through the drive motor, so that the slider 8 moves in the slide groove 3, thereby driving the exchange mechanism 9 to move. Step S4: When the exchange mechanism 9 moves to the corresponding connection port 15 position, the small cylinder 28 drives the connecting block 33 to move up and down and extend and retract. By changing the included angle between the first rotating plate 25 and the second rotating plate 26, the moving plate 20 moves up and down relative to the slider 8. The connecting pipe 24 is inserted into the second conveying pipe 30 through the clamp 29, so that hot water can be conveyed to the water tank 5. Step S5: After the hot water is delivered, the moving plate 20 rises upwards, and the baffle block 22, under the elastic force of the spring 23, can seal the port of the second delivery pipe 30 to prevent external contaminants from entering the water tank 5.

[0020] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-air source heat pump unit, characterized in that, include: The outer shell (1) is provided with a heating element (17) and a water exchange pipe (18). The water exchange pipe (18) is serpentinely inserted into the heating element (17). Multiple air intake fans (2) are rotatably installed on the outer surfaces of both ends of the outer shell (1). A grid plate (14) is provided on one side of the outer shell (1). Two first delivery pipes (19) are connected to the upper and lower ends of both sides of the heating element (17). Multiple water tanks (5), one side of each water tank (5) is provided with a fixed second fixing rod (6), the second fixing rod (6) is slidably connected to a slide plate (7), the slide plate (7) is equipped with two exchange mechanisms (9), one exchange mechanism (9) is fixedly installed at one end of the slide plate (7), and the other exchange mechanism (9) is slidably installed on the slide plate (7). Each water tank (5) is provided with a connection port (15), and the exchange mechanism (9) is used to communicate with the connection port (15); Two compressors (4) are respectively installed on both sides of multiple water tanks (5), the first delivery pipe (19) is connected to the compressors (4), and the exchange water pipe (18) is connected to the connecting pipe (24); The exchange mechanism (9) includes a movable plate (20), a first rotating plate (25), and a second rotating plate (26). The movable plate (20) is slidably connected to one end of the slider (8). One end of the first rotating plate (25) is rotatably connected to the upper end of the movable plate (20). The other end of the first rotating plate (25) is rotatably connected to the second rotating plate (26). The second rotating plate (26) is rotatably connected to the slider (8). A small cylinder (28) is fixedly installed on the slider (8) below the first rotating plate (25). A connecting block (33) is fixedly connected to the driving end of the small cylinder (28). An opening (27) is opened on the first rotating plate (25). The connecting block (33) is slidably installed in the opening (27). The lower end of the movable plate (20) is fixedly connected to a sleeve (29), a connecting tube (24) is fixedly inserted on the sleeve (29), a second conveying tube (30) is inserted on the connecting port (15), the sleeve (29) is used to snap onto the outer surface of the second conveying tube (30), and the connecting tube (24) is fixedly inserted on the sleeve (29). A side groove (21) is provided on one side of the connection port (15), and a partition block (22) is slidably installed in the side groove (21). The upper surface of the partition block (22) is inclined, and the partition block (22) is slidably connected to the inner wall of the side groove (21) by a spring (23).

2. The plurality of air source heat pump units according to claim 1, characterized in that, A fan motor (16) corresponding to the suction fan (2) is fixedly installed inside the outer casing (1), and the driving end of the fan motor (16) is fixedly connected to the suction fan (2).

3. A plurality of air source heat pump units according to claim 2, characterized in that, The slide plate (7) has a groove (3) and a slider (8) is slidably installed in the groove (3). One of the exchange mechanisms (9) is installed on the slider (8). A threaded rod (13) is also rotatably installed in the groove (3). The threaded rod (13) passes through the slider (8). A drive motor is provided at one end of the slide plate (7). The drive end of the drive motor is fixedly connected to the threaded rod (13).

4. A plurality of air source heat pump units according to claim 3, characterized in that, The slider (8) is provided with a limit block (32) at one end of the moving plate (20), and a limit groove (31) is provided on the moving plate (20). The limit block (32) slides along the limit groove (31).

5. A plurality of air source heat pump units according to claim 4, characterized in that, A first fixed rod (10) is fixedly installed below the second fixed rod (6). A telescopic cylinder (11) is rotatably installed on the first fixed rod (10). A telescopic shaft (12) is fixedly connected to the drive end of the telescopic cylinder (11). The upper end of the telescopic shaft (12) is rotatably connected to the side of the slide plate (7).

6. A control system for multiple air source heat pump units according to claim 5, characterized in that, Includes the following steps: S1: The fan motor (16) drives the intake fan (2) to rotate. As the intake fan (2) rotates, it can absorb the air in the external environment into the outer shell (1). When the air enters the outer shell (1), it will be transported to one of the compressors (4). The gaseous refrigerant is introduced into the heating element (17) through the first delivery pipe (19). The first delivery pipe (19) is introduced from the lower side of the heating element (17). S2: The two compressors (4) can be used simultaneously or one can be used at a time. The heating element (17) is equipped with two inlet and outlet pipes. The choice of which to use depends on the hot water supply and demand. When one compressor (4) is in use and the heat supply is insufficient, the other compressor (4) will be started to supply heat. When one compressor (4) fails, the other compressor (4) can supply a replacement in time. S3: Multiple water tanks (5) are provided. The water tanks (5) are connected to the hot water tanks (9) for hot water input. The hot water prepared is transported to the water tanks (5) for storage through the exchange mechanism (9). The position of the exchange mechanism (9) can be changed. When the hot water in one water tank (5) is full, another water tank (5) can be used in time. Two exchange mechanisms (9) are provided. The water tank (5) in the idle state can buffer the time difference generated when the hot water is continuously used. The user can always use the water tank (5) that is full of hot water in the idle state. S4: When the exchange mechanism (9) moves to the corresponding connection port (15) position, the small cylinder (28) realizes the up and down movement of the moving plate (20) relative to the slider (8), and inserts the connecting pipe (24) into the second conveying pipe (30) through the ferrule (29), so that hot water can be conveyed to the water tank (5); S5: After the hot water is delivered, the moving plate (20) rises up to close the port of the second delivery pipe (30).

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