An air source heat pump apparatus having a waste heat recovery arrangement

Abstract

This invention belongs to the field of air source heat pump technology, specifically disclosing an air source heat pump device with a waste energy recovery structure, including an installation frame, an air source heat pump body, and a control cabinet. The installation frame is fitted around the rear of the air source heat pump body. A recovery box is fixedly installed above the installation frame and near the rear of the air source heat pump body. An L-shaped installation plate is fixedly installed on the upper end of the recovery box. Waste energy suction machines are installed on both sides of the top wall of the installation plate. Rotating rings are connected to the ventilation pipes of the two waste energy suction machines through rotating parts. Sweeping frames are connected to the rotating rings through bolts installed on both sides inside. Brushes are fixedly installed below the sweeping frames. This invention solves the problems of waste heat waste, high defrosting energy consumption, and low heat exchange efficiency of existing heat pumps, significantly improving energy utilization and overall system energy efficiency, reducing manual maintenance costs, and has a compact structure and strong practicality.

Description

Technical Field

[0001] This invention belongs to the field of air source heat pump technology, and specifically discloses an air source heat pump device with a waste energy recovery structure. Background Technology

[0002] Air source heat pumps, as a highly efficient and environmentally friendly heating and cooling solution, have been widely used in building heating, domestic hot water, and industrial and agricultural drying in recent years. Their working principle involves consuming a small amount of electricity to "transfer" low-grade heat energy from outdoor air to indoor spaces or water, thereby achieving heating or cooling. Theoretically, air source heat pumps can achieve a coefficient of performance (COP) of over 3.0, meaning that for every unit of electricity consumed, more than three units of heat energy can be generated, demonstrating significant energy-saving advantages.

[0003] However, when an air source heat pump operates in cooling mode, it releases a large amount of heat into the atmosphere through the outdoor unit's heat exchanger. Even in heating mode, some of the waste heat generated by the compressor is lost to the environment through radiation from the casing and heat dissipation from the pipes. Taking a typical household air source heat pump water heater as an example, it can release 3-5 kW of waste heat into the environment per hour during summer cooling mode. This heat is directly blown into the atmosphere by the fan, resulting in huge energy waste. Although existing technologies have attempted to recover this waste heat, they generally suffer from low heat exchange efficiency, complex structures, and high installation space requirements, making them difficult to promote and apply in practical engineering projects.

[0004] Existing waste heat recovery technologies are impractical and difficult to implement industrially. In particular, the defrosting process in winter involves significant energy loss, as heat is absorbed from indoors for outdoor defrosting, which severely reduces the overall energy efficiency of the system.

[0005] When air source heat pumps operate in low-temperature and high-humidity environments during winter, frost easily forms on the surface of the outdoor unit's heat exchanger fins. Frost increases heat exchange resistance, blocks airflow channels, and causes a sharp drop in heating capacity. Therefore, the heat pump must periodically enter defrost mode. Current mainstream defrost technology uses reverse circulation, which works by switching the refrigerant flow through a four-way valve, reversing the flow of heat originally supplied to the indoor unit / water tank to the outdoor unit to melt the frost. Essentially, this process involves "absorbing heat from the indoor unit (or water) to defrost the outdoor unit," directly causing the indoor unit to blow cold air during defrost, severely impacting living comfort.

[0006] Therefore, there is an urgent need to develop an integrated mechanical structure solution that can simultaneously achieve efficient recovery of exhaust waste heat and self-sufficiency in defrosting energy, fundamentally solving the paradox of "energy-saving equipment not being energy-efficient" in existing technologies, and promoting the development of air source heat pumps towards higher energy efficiency and lower energy consumption. Summary of the Invention

[0007] The purpose of this invention is to solve the problems existing in the background art, and to propose an air source heat pump device with a waste energy recovery structure, including an installation frame, an air source heat pump body, and a control cabinet. The installation frame is sleeved on the rear of the air source heat pump body. A recovery box is fixedly installed above the installation frame and near the rear of the air source heat pump body. An L-shaped installation plate is fixedly installed on the upper end of the recovery box. Waste energy suction machines are installed on both sides of the top wall of the installation plate. The ventilation pipes of the two waste energy suction machines are respectively connected to rotating rings through rotating parts. The rotating rings pass through internal... The dust sweeping frame is bolted to both sides, and a brush is fixedly installed below each dust sweeping frame. The brush is in contact with the upper surface of the ventilation pipe at the upper end of the air source heat pump body. A storage box is installed inside the rear end of the waste energy suction machine. A filter box is slidably connected inside the storage box. A connecting channel is installed at the rear of the storage box. The end of the connecting channel away from the storage box extends into the recycling box. Heat exchangers are installed on both sides inside the recycling box. The two heat exchangers are connected to the corresponding connecting channel through the heat conduction chamber set at the upper end. A defrosting circulation component is set inside the recycling box.

[0008] In the above technical solution, the rotating component further includes a protective shell, two rotating shafts, a synchronous belt assembly, and a third motor. The protective shell is fixedly installed above the mounting plate, and the third motor is fixedly installed inside the protective shell. The two rotating shafts are externally connected by the synchronous belt assembly, and the end of one of the rotating shafts is connected to the output end of the third motor. Both rotating shafts extend into the waste energy suction machine and are connected to the ash sweeping frame.

[0009] In the above technical solution, the defrosting circulation component further includes a fixed frame fixedly installed on the outer wall of one side of the recycling box. An air extraction circulation pump is fixedly installed inside the fixed frame. An air extraction pipe is connected to the upper part of the air extraction circulation pump. A conveying pipe is connected to the end of the air extraction circulation pump away from the air extraction pipe. The rear ends of the two waste energy extraction machine ventilation pipes are connected to a double-headed defrosting pipe. The double-headed defrosting pipe and the conveying pipe are internally connected through a regulating valve.

[0010] In the above technical solution, further, a shell is sealed and embedded inside the recycling bin and on the side near the fixed frame. A first motor is fixedly installed on the upper end of the shell. A lead screw is rotatably installed inside the shell. The upper end of the lead screw is connected to the output end of the first motor. A slide is threadedly connected to the outside of the lead screw. A ring frame is fixedly installed at the end of the slide away from the lead screw. A drainage component is provided inside the ring frame. A liquid level sensor is installed on the outer surface of the slide.

[0011] In the above technical solution, the drainage component further includes a T-shaped pipe and drainage pipes respectively connected and installed on the upper sides of the inside of the T-shaped pipe, and one end of each drainage pipe extends to the outside of the recycling box. The lower end of the T-shaped pipe is connected to a telescopic pipe, and the ring frame is fixedly sleeved on the lower end of the telescopic pipe.

[0012] In the above technical solution, one end of the slide is slidably fitted to the inner wall of the outer shell, and the control cabinet is fixedly installed on the outside of the recycling bin and on the side away from the outer shell.

[0013] In the above technical solution, a baffle rod is rotatably installed inside the recovery box on the side away from the heat exchanger, and a baffle plate is fixedly installed on the outer side of the baffle rod.

[0014] In the above technical solution, a second motor is further fixedly installed on the outside of the recycling bin and on the side near the baffle rod. The output end of the second motor extends into the inside of the recycling bin and is connected to one end of the baffle rod. A water inlet pipe is connected and installed inside the recycling bin and on the side near the baffle rod, and one end of the water inlet pipe extends downward into the inside of the recycling bin.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention, by incorporating a waste heat extraction unit, a storage tank, and connecting channels, can actively extract waste heat airflow discharged from the ventilation ducts during the operation of the air source heat pump and guide it into a heat exchanger inside the recovery tank for heat exchange. This structure achieves efficient recovery of waste energy that would otherwise be directly lost to the atmosphere, significantly improving energy utilization efficiency and solving the problem of severe waste heat resource waste in existing technologies.

[0016] Secondly, this invention, by installing a dust-sweeping frame and brush structure driven by a rotating component at the ventilation duct of the waste energy extraction machine, can automatically clean the surface of the ventilation duct at the upper end of the air source heat pump body, preventing dust accumulation from affecting heat exchange efficiency. Simultaneously, the filter box slidingly installed inside the storage tank can filter and intercept impurities in the extracted airflow, further ensuring the cleanliness and stable operation of the recovery system and reducing the frequency of manual maintenance.

[0017] This invention integrates a defrosting circulation component inside the recovery tank. Through the cooperation of an air circulation pump, a dual-head defrosting pipe, and a regulating valve, the recovered heat energy can be re-transported to the air source heat pump body for defrosting. This design changes the traditional reverse circulation defrosting mode, which requires heat absorption from the room, achieving self-sufficiency in defrosting energy, avoiding the phenomenon of cold air blowing indoors during defrosting, and improving user comfort and the overall energy efficiency of the system.

[0018] The automatic drainage mechanism inside the recovery tank of this invention, through a liquid level sensor, lead screw drive, and telescopic tube assembly, can automatically adjust the drainage height according to the liquid level, ensuring that accumulated water in the recovery tank is discharged in a timely manner and preventing excessive water level from affecting the operation of the heat exchanger. Simultaneously, the baffle rod and baffle plate can disturb the water flow inside the recovery tank, increasing the contact area with the heat exchanger and further improving heat exchange efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a schematic diagram of the connection structure of the inner part of the recycling bin of the present invention; Figure 4 This is a schematic diagram of the connection structure between the ventilation pipe and the waste energy extraction machine of the present invention; Figure 5 This is another schematic diagram of the connection structure between the ventilation pipe and the waste energy extraction machine of the present invention; Figure 6 This is a schematic diagram of the connection structure between the waste energy suction machine and the rotating component of the present invention; Figure 7 This is a schematic diagram of the connection structure of the defrosting circulation component of the present invention; Figure 8 This is a schematic diagram of the connection structure between the drainage component and the lead screw of the present invention; Figure 9 This is a schematic diagram of the connection structure between the spoiler rod and the spoiler plate of the present invention.

[0020] In the diagram: 1. Installation frame; 2. Air source heat pump body; 3. Mounting plate; 4. Protective shell; 5. Waste energy extraction machine; 6. Connecting channel; 7. Fixing frame; 8. Outer shell; 9. First motor; 10. Regulating valve; 11. Water inlet pipe; 12. Second motor; 13. Double-headed defrosting pipe; 14. Conveying pipe; 15. Drain pipe; 16. Lead screw; 17. Heat exchanger; 18. Baffle bar; 19. Control cabinet; 20. Heat conduction chamber; 21. Rotating shaft; 22. Synchronous belt assembly; 23. Third motor; 24. Dust sweeping frame; 25. Baffle plate; 26. Liquid level sensor; 27. Storage box; 28. Filter box; 29. ​​Brush; 30. Bolt; 31. Rotating ring; 32. Extraction pipe; 33. T-shaped pipe; 34. Telescopic pipe; 35. Ring frame; 36. Recycling box; 37. Extraction circulation pump; 38. Slide. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] like Figures 1-9 An air source heat pump device with a waste energy recovery structure is shown, including a mounting frame 1, an air source heat pump body 2, and a control cabinet 19. The mounting frame 1 is fitted around the rear of the air source heat pump body 2. A recovery box 36 is fixedly installed above the mounting frame 1 and near the rear of the air source heat pump body 2. An L-shaped mounting plate 3 is fixedly installed on the upper end of the recovery box 36. Waste energy extraction machines 5 are installed on both sides of the top wall of the mounting plate 3. The ventilation pipes of the two waste energy extraction machines 5 are connected to rotating rings 31 by rotating parts. The rotating rings 31 are connected to dust removal frames 24 by bolts 30 installed on both sides inside. A dust removal frame 24 is fixedly installed below each of the dust removal frames 24. The brush 29 is in contact with the upper surface of the ventilation pipe at the upper end of the air source heat pump body 2. The storage box 27 is installed inside the rear end of the waste energy suction machine 5. The filter box 28 is sealed and slidably connected inside the storage box 27. The connecting channel 6 is installed inside the rear of the storage box 27. The end of the connecting channel 6 away from the storage box 27 extends into the recycling box 36. Heat exchangers 17 are installed on both sides inside the recycling box 36. The two heat exchangers 17 are connected to the corresponding connecting channel 6 through the heat conduction chamber 20 set at the upper end. The recycling box 36 is equipped with a defrosting circulation component. The control cabinet 19 is fixedly installed outside the recycling box 36 on the side away from the outer shell 8. In this embodiment, when the air source heat pump body 2 is running, the upper ventilation pipe discharges waste heat airflow to the outside. The waste energy suction machine 5 starts to generate negative pressure, which draws the waste heat airflow into its own air duct. The airflow first passes through the area of ​​the brush 29 that contacts the ventilation pipe, and then enters the storage box 27. After the filter box 28 filters impurities, the purified hot airflow enters the heat conduction chamber 20 through the connecting channel 6, and then disperses to the heat exchanger 17 to exchange heat with the water in the recovery box 36, thus completing the waste heat recovery. The defrosting circulation component uses the recovered heat energy to provide the heat required for defrosting of the air source heat pump body 2. The whole process is uniformly controlled by the control cabinet 19. The brush 29 contacts the surface of the ventilation duct, which can initially clean the floating dust on the surface of the ventilation duct during the airflow extraction process. The filter box 28 can intercept impurities in the airflow, prevent impurities from entering the subsequent heat exchange structure and causing blockage, and ensure the stable operation of the recovery system. Through the above steps, the active extraction and recovery of the exhaust waste heat airflow of the air source heat pump body 2 can be realized, converting the low-grade heat energy that was originally lost to the atmosphere into usable heat energy, improving the overall energy utilization efficiency, and solving the problem of waste heat waste in traditional heat pumps.

[0024] The rotating component includes a protective shell 4, two rotating shafts 21, a synchronous belt assembly 22, and a third motor 23. The protective shell 4 is fixedly installed above the mounting plate 3, and the third motor 23 is fixedly installed inside the protective shell 4. The two rotating shafts 21 are rotatably connected to each other through the synchronous belt assembly 22, and the end of one of the rotating shafts 21 is connected to the output end of the third motor 23. Both rotating shafts 21 extend into the waste energy suction machine 5 and are connected to the dust sweeping frame 24. In this embodiment, the synchronous belt assembly 22 consists of two sets of synchronous pulleys and a synchronous belt. The two sets of synchronous pulleys are respectively sleeved on the outside of the two rotating shafts 21, and the synchronous belt is sleeved on the outside of the two sets of synchronous pulleys. When the third motor 23 drives the corresponding rotating shaft 21 to rotate, the synchronous belt assembly 22 can drive the other rotating shaft 21 to rotate synchronously. When the two rotating shafts 21 rotate synchronously, they drive the rotating ring 31 and the dust sweeping frame 24 connected to them to rotate around the ventilation pipe of the waste energy suction machine 5, thereby driving the brush 29 to perform a circular cleaning motion on the upper surface of the ventilation pipe at the upper end of the air source heat pump body 2.

[0025] The defrosting circulation component includes a fixed frame 7 fixedly installed on the outer wall of one side of the recycling bin 36. A vacuum circulation pump 37 is fixedly installed inside the fixed frame 7. A vacuum pipe 32 is installed above the vacuum circulation pump 37. A conveying pipe 14 is installed at the end of the vacuum circulation pump 37 away from the vacuum pipe 32. The rear ends of the ventilation pipes of the two waste energy suction machines 5 are connected to a double-headed defrosting pipe 13. The double-headed defrosting pipe 13 and the conveying pipe 14 are connected through a regulating valve 10. In this embodiment, when the air source heat pump body 2 needs to defrost, the control cabinet 19 controls the regulating valve 10 to open, connecting the delivery pipe 14 to the double-headed defrosting pipe 13, and simultaneously starts the air extraction circulation pump 37. The air extraction circulation pump 37 draws hot air from the recovery box 36 through the extraction pipe 32, which has been heated by heat exchange in the heat exchanger 17. The hot air enters the double-headed defrosting pipe 13 through the delivery pipe 14 and the regulating valve 10, and is then distributed from the double-headed defrosting pipe 13 to the ventilation pipes of the two waste energy extraction machines 5, and finally guided to the outdoor heat exchanger of the air source heat pump body 2, where the heat of the hot air melts the frost layer. After defrosting is completed, the control cabinet 19 controls the regulating valve 10 to close, and the air extraction circulation pump 37 stops working.

[0026] The system uses recycled waste heat to convert into hot air for defrosting, replacing the traditional reverse circulation defrosting method. It eliminates the need to absorb heat from the room or water tank, achieving self-sufficiency in defrosting energy and avoiding the phenomenon of cold air blowing in the room during defrosting, thus improving user comfort. It should be noted that the waste energy suction machine 5 is a negative pressure airflow suction structure, and its shell is equipped with a hollow air duct. At the top of the shell, along the axis of the air duct, there is an installation channel for the rotating shaft 21 to pass through. A sealed bearing is installed in the channel, and the rotating shaft 21 passes through the sealed bearing and is stably connected to the dust sweeping frame 24. The airflow defrosting path of the dual-head defrosting pipe 13 connected to the ventilation pipe of the waste heat pump 5 is as follows: hot air flows forward along the ventilation pipe of the waste heat pump 5 and is guided from the suction port of the ventilation pipe to the surface of the outdoor heat exchanger fins of the air source heat pump body 2. The sensible heat of the hot air melts the frost layer. The whole process does not require switching the refrigerant flow direction, so the defrosting energy is self-sufficient.

[0027] Inside the recycling bin 36, on the side near the fixed frame 7, a housing 8 is sealed and embedded. A first motor 9 is fixedly installed on the upper end of the housing 8. A lead screw 16 is rotatably installed inside the housing 8. The upper end of the lead screw 16 is connected to the output end of the first motor 9. A slide 38 is threadedly connected to the outside of the lead screw 16. A ring frame 35 is fixedly installed on the end of the slide 38 away from the lead screw 16. A drainage component is provided inside the ring frame 35. A liquid level sensor 26 is installed on the outer surface of the slide 38. In this embodiment, the liquid level sensor 26 detects the water level at the bottom of the recovery tank 36 in real time and transmits the liquid level signal to the control cabinet 19. When the liquid level reaches the preset upper limit value, the control cabinet 19 controls the first motor 9 to start. The first motor 9 drives the lead screw 16 to rotate. The lead screw 16 drives the slide 38 to slide vertically downward along the inner wall of the outer shell 8 through the thread transmission. The slide 38 drives the ring frame 35 and the drainage component to move down to the liquid level to drain the water. When the liquid level drops to the preset lower limit, the control cabinet 19 controls the first motor 9 to rotate in the opposite direction, driving the slide 38 and the drainage component to move upward and stop the drainage. It should be noted that by setting the liquid level sensor 26, the liquid level can be monitored in real time. With the screw drive of the lead screw 16, the height of the drain part can be automatically adjusted to ensure that the water after heat exchange can be discharged in time. During the heat exchange process, the cold water absorbs heat and rises to the surface. This design can ensure that the discharged water is always the hot water after heat exchange.

[0028] The drainage component includes a T-shaped pipe 33 and drainage pipes 15 that are respectively connected to the upper sides of the inside of the T-shaped pipe 33. One end of each drainage pipe 15 extends to the outside of the recycling box 36. A telescopic pipe 34 is connected to the lower end of the T-shaped pipe 33. A ring frame 35 is fixedly sleeved on the lower end of the telescopic pipe 34. One end of the slide frame 38 slides against the inner wall of the outer shell 8. In this embodiment, when the slide 38 moves the ring frame 35 downward, the ring frame 35 pulls the telescopic tube 34 downward, so that the lower opening of the telescopic tube 34 is immersed in the water at the bottom of the recovery tank 36. Under the action of the liquid level difference, the water enters the T-shaped tube 33 through the telescopic tube 34, and then is diverted to the two drain pipes 15 through the T-shaped tube 33, and finally discharged from the recovery tank 36 through the drain pipes 15. When the slide 38 moves the ring frame 35 upward, the telescopic tube 34 retracts upward, and its lower opening leaves the hot water surface, and the drainage process stops. It should be noted that the drain pipe 15 can be connected to an external automatic water pumping system via a flange interface to achieve automatic water pumping; The corrugated expansion tube 34 has good flexibility and sealing performance, and is not prone to leakage due to bending or stretching. It is also highly corrosion resistant and suitable for the working environment inside the recycling bin 36. The liquid level sensor 26 and the first motor 9 are both electrically connected to the control cabinet 19.

[0029] A baffle rod 18 is rotatably installed inside the recovery box 36 on the side away from the heat exchanger 17. A baffle plate 25 is fixedly installed on the outside side of the baffle rod 18. A second motor 12 is fixedly installed on the outside of the recovery box 36 on the side close to the baffle rod 18. The output end of the second motor 12 extends into the recovery box 36 and is connected to one end of the baffle rod 18. A water inlet pipe 11 is connected and installed inside the recovery box 36 on the side close to the baffle rod 18, and one end of the water inlet pipe 11 extends downward into the recovery box 36. In this embodiment, after external cold water is injected into the recovery tank 36 through the inlet pipe 11, the water flows towards the heat exchange surface of the heat exchanger 17. When the baffle rod 18 rotates, it drives the external baffle plate 25 to rotate synchronously. The arc-shaped baffle plate 25 agitates the water flow in the recovery tank 36, turning the originally stable water flow into turbulent flow, breaking the laminar boundary layer of the water flow. The baffle plate 25 agitates the water flow to form turbulent flow, increasing the contact area and contact frequency between the water flow and the heat exchange surface of the heat exchanger 17, making the heat exchange between the water flow and the heat exchanger 17 more complete, and improving the heat exchange efficiency of waste heat recovery.

[0030] Working principle: First, when the air source heat pump body 2 is in operation, a large amount of hot air is discharged outward from its top ventilation duct. At this time, two waste heat extraction machines 5, fixedly installed above the mounting plate 3, start up, generating negative pressure to draw the waste heat air discharged from the ventilation duct into the internal air duct. The waste heat airflow first passes through the area of ​​the brush 29 fixedly installed below the dust removal frame 24; at the same time, the third motor 23 can intermittently drive the rotating shaft 21 to rotate during operation, and drive the two rotating shafts 21 to rotate synchronously through the synchronous belt assembly 22, thereby driving the rotating ring 31 and the dust removal frame 24 to rotate gently, so that the brush 29 can perform circumferential cleaning of the upper surface of the ventilation duct at the top of the air source heat pump body 2, preventing dust accumulation and blockage that affects heat exchange efficiency; The waste heat air containing impurities then enters the storage tank 27, where it is filtered and purified by the internally sealed sliding filter box 28 to remove dust and particulate matter from the air. The purified hot air is then transported to the inside of the recovery tank 36 through the connecting channel 6 and enters the heat exchangers 17 located on both sides through the heat conduction chamber 20. At the same time, external cold water is injected into the lower part of the recovery tank 36 through the water inlet pipe 11. The second motor 12 drives the baffle rod 18 to rotate, which in turn drives the baffle plate 25 to agitate the water, so that the water flows evenly across the surface of the heat exchanger 17, thereby achieving efficient heat exchange between the high-temperature waste gas and the low-temperature water, and completing the recovery and utilization of waste heat. When the equipment is in a low-temperature, high-humidity environment during winter and the outdoor unit needs defrosting, the defrosting circulation components begin to operate. The regulating valve 10 switches the flow path, and the air extraction circulation pump 37 inside the mounting bracket 7 starts. It draws pre-heated hot air from the recovery tank 36 through the extraction pipe 32, and delivers it to the dual-head defrosting pipe 13 via the delivery pipe 14. Finally, the hot air is guided to the outdoor heat exchanger of the air source heat pump body 2 for defrosting. This process does not require switching the refrigerant flow direction, avoids absorbing heat from the indoor unit, and achieves self-sufficiency in defrosting energy.

[0031] During the heat exchange process, the liquid level sensor 26 on the outer surface of the slide 38 monitors the water level in real time. When the water level reaches the set value, the first motor 9 drives the lead screw 16 to rotate, causing the slide 38 to slide and rise along the inner wall of the outer shell 8, thereby moving the ring frame 35 and the telescopic pipe 34 to a suitable drainage position. After the condensate is diverted through the T-shaped pipe 33, it is automatically discharged to the outside of the recovery tank 36 through the drain pipes 15 on both sides, preventing excessive water accumulation from affecting the normal operation of the heat exchanger 17.

[0032] The entire process of waste energy extraction, cleaning, heat exchange, defrosting, and drainage of the device is automatically controlled by the control cabinet 19 according to the preset program and sensor feedback signals, thereby realizing the efficient recovery and recycling of waste energy.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. 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 principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An air source heat pump device with waste heat recovery structure, comprising a mounting enclosure (1), an air source heat pump main body (2) and a control cabinet (19), characterized in that: The installation frame (1) is fitted around the rear of the air source heat pump body (2). A recycling box (36) is fixedly installed above the installation frame (1) and near the rear of the air source heat pump body (2). An L-shaped installation plate (3) is fixedly installed on the upper end of the recycling box (36). Waste energy suction machines (5) are installed on both sides of the top wall of the installation plate (3). Rotating rings (31) are connected to the ventilation pipes of the two waste energy suction machines (5) through rotating parts. A dust sweeping frame (24) is connected to the rotating rings (31) through bolts (30) installed on both sides inside. A brush (29) is fixedly installed below the dust sweeping frame (24). 9) The upper surface of the ventilation pipe at the upper end of the air source heat pump body (2) is in contact with the waste energy suction machine (5). The rear end of the waste energy suction machine (5) is connected to a storage box (27). The storage box (27) is sealed and slidably connected to a filter box (28). The rear end of the storage box (27) is connected to a connecting channel (6). The end of the connecting channel (6) away from the storage box (27) extends to the inside of the recovery box (36). Heat exchangers (17) are installed on both sides of the inside of the recovery box (36). The two heat exchangers (17) are connected to the corresponding connecting channel (6) through the heat conduction chamber (20) set at the upper end. The recovery box (36) is equipped with a defrosting circulation component.

2. An air source heat pump device with a waste energy recovery structure according to claim 1, characterized in that: The rotating component includes a protective shell (4), two rotating shafts (21), a synchronous belt assembly (22), and a third motor (23). The protective shell (4) is fixedly installed above the mounting plate (3). The third motor (23) is fixedly installed inside the protective shell (4). The two rotating shafts (21) are rotatably connected to each other through the synchronous belt assembly (22). The end of one of the rotating shafts (21) is connected to the output end of the third motor (23). Both rotating shafts (21) extend into the waste energy suction machine (5) and are connected to the dust sweeping frame (24).

3. An air source heat pump device with a waste energy recovery structure according to claim 1, characterized in that: The defrosting circulation component includes a fixed frame (7) fixedly installed on the outer wall of one side of the recycling box (36). A vacuum circulation pump (37) is fixedly installed inside the fixed frame (7). A vacuum pipe (32) is connected to the upper part of the vacuum circulation pump (37). A delivery pipe (14) is connected to the end of the vacuum circulation pump (37) away from the vacuum pipe (32). The rear ends of the ventilation pipes of the two waste energy suction machines (5) are connected to a double-headed defrosting pipe (13). The double-headed defrosting pipe (13) and the delivery pipe (14) are connected internally through a regulating valve (10) installed in connection.

4. An air source heat pump device with a waste energy recovery structure according to claim 3, characterized in that: The recycling bin (36) is sealed with a housing (8) on the side near the fixed frame (7). A first motor (9) is fixedly installed on the upper end of the housing (8). A lead screw (16) is rotatably installed inside the housing (8). The upper end of the lead screw (16) is connected to the output end of the first motor (9). A slide (38) is threadedly connected to the outside of the lead screw (16). A ring frame (35) is fixedly installed on the end of the slide (38) away from the lead screw (16). A drainage component is provided inside the ring frame (35). A liquid level sensor (26) is installed on the outer surface of the slide (38).

5. An air source heat pump device with a waste energy recovery structure according to claim 4, characterized in that: The drainage component includes a T-shaped pipe (33) and drainage pipes (15) that are respectively connected to the upper sides of the inside of the T-shaped pipe (33). One end of each drainage pipe (15) extends to the outside of the recycling box (36). A telescopic pipe (34) is connected to the lower end of the T-shaped pipe (33). The ring frame (35) is fixedly sleeved on the lower end of the telescopic pipe (34).

6. An air source heat pump device with a waste energy recovery structure according to claim 4, characterized in that: The inner end of the slide (38) is slidably attached to the inner wall of the outer shell (8), and the control cabinet (19) is fixedly installed on the outside of the recycling bin (36) and away from the outer shell (8).

7. An air source heat pump device with a waste energy recovery structure according to claim 1, characterized in that: A baffle rod (18) is rotatably installed inside the recovery box (36) and on the side away from the heat exchanger (17), and a baffle plate (25) is fixedly installed on the outside side of the baffle rod (18).

8. An air source heat pump device with a waste energy recovery structure according to claim 7, characterized in that: A second motor (12) is fixedly installed on the outside of the recycling bin (36) and on the side near the baffle rod (18). The output end of the second motor (12) extends into the inside of the recycling bin (36) and is connected to one end of the baffle rod (18). A water inlet pipe (11) is connected to the inside of the recycling bin (36) and on the side near the baffle rod (18), and one end of the water inlet pipe (11) extends downward into the inside of the recycling bin (36).

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