Efficient anti-freezing air source heat pump and heat pipe heat exchanger coupled shaft anti-freezing heating device

Abstract

The invention relates to the technical field of shaft anti-freezing, and discloses an efficient anti-freezing air source heat pump and heat pipe heat exchanger coupled shaft anti-freezing heating device which comprises an air source heat pump, a heat pipe heat exchanger and a shaft, the air source heat pump comprises a compressor, a condenser, a standard throttling device and an evaporator, and the compressor is connected with the condenser; the condenser is connected with a standard throttling device, the standard throttling device is connected with the evaporator, and the evaporator is connected with the compressor; an outlet of the heat pipe exchanger is connected with a heat exchange pipe, the other end of the heat exchange pipe is connected with an inlet of the heat pipe exchanger, the heat exchange pipe is installed in the condenser, an electric fan is installed on heat exchange fins on one side of the heat exchange pipe, and heat exchange fins on the other side of the heat exchange pipe correspond to a shaft. Compared with a traditional device which needs to heat hot water and then heat fresh air, the heat exchange link is omitted, the condenser of the air source heat pump is subjected to phase-change heat exchange at the moment, the heat exchange efficiency is higher, and energy consumption of the water pump is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of wellbore antifreeze, and in particular relates to a wellbore antifreeze heating device coupling a high-efficiency antifreeze air source heat pump and a heat pipe heat exchanger. Background Art

[0002] In order to ensure safe production underground, air needs to be continuously supplied to the mine. In the operating rules, it is necessary to ensure that the air temperature below the mine air outlet must be above 2°C. In winter, when the outdoor temperature is low, the outdoor air needs to be heated and can only be supplied to the mine after it meets the requirements.

[0003] Traditional devices heat hot water and then combine it with fresh air through heat exchange to achieve the purpose of delivering hot air. However, in the above actual operation process, heating water and then performing heat exchange can easily lead to heat loss angles, causing unnecessary waste. In addition, during the air delivery process, it is generally necessary to filter the entire air delivered. However, after the filter has been used for a period of time, it is also necessary to disassemble and clean the filter, which is a more troublesome operation.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the technical problem that the traditional device heats the hot water and then combines it with the fresh air through heat exchange, so as to achieve the purpose of sending hot air, but in the above-mentioned actual operation process, heating the water and then performing heat exchange easily leads to heat loss angle, resulting in unnecessary waste, and in the process of sending air, it is generally necessary to filter the whole sent air, but when the filter net is used for a period of time, it is also necessary to disassemble and clean the filter net, which is a relatively troublesome operation. The basic concept of the technical solution adopted by the present invention is:

[0006] The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device comprises an air source heat pump, a heat pipe heat exchanger, a wellbore and a cleaning unit installed on the heat pipe heat exchanger.

[0007] The air source heat pump comprises a compressor, a condenser, a standard throttling device and an evaporator, the compressor and the condenser are connected to each other, the condenser is connected to a standard throttling device, the standard throttling device and the evaporator, and the evaporator and the compressor are connected to each other;

[0008] The heat pipe heat exchanger includes a mounting cover and a heat exchange fin body. The heat exchange fin body is mounted at the air inlet of the mounting cover. Heat exchange tubes are mounted on the inlet and outlet of the heat exchange fin body. One side of the heat exchange tube is placed in the condenser. The air outlet of the mounting cover corresponds to the wellbore. A filter is mounted on the mounting cover. A fan blade is mounted on the mounting cover. A driving motor is mounted at the rotation center of the fan blade.

[0009] The cleaning unit includes a worm, which is connected to the output shaft of the driving motor, a worm wheel meshing with the worm, an adjusting roller installed on the worm wheel, a guide groove opened on the adjusting roller, a guide slider slidingly arranged on the guide groove, a guide rod installed on the guide slider, a push-pull rod installed on the guide rod, a fixed plate installed on the end of the push-pull rod, a scraper rotatably installed on the fixed plate, the end of the scraper fits the surface of the filter, and collection boxes are installed on both sides of the mounting cover.

[0010] As a preferred embodiment of the present invention, a liquid inlet and a liquid outlet are provided on the condenser, the liquid inlet and the outlet of the compressor are interconnected, the liquid outlet and the inlet of the standard throttling device are interconnected, the liquid inlet and the liquid outlet are not located on the same plane, and the height of the liquid inlet is lower than the height of the liquid outlet.

[0011] As a preferred embodiment of the present invention, the heat exchange tube located inside the condenser is U-shaped, and a gap is left between the heat exchange tube located inside the condenser and the inner wall of the condenser.

[0012] As a preferred embodiment of the present invention, a bracket is installed on the driving motor housing, and the bracket is welded and arranged on the outside of the mounting cover, the fan blades are located in the gap between the driving motor and the filter, and the number of blades of the fan blades is an odd number, and the mesh number of the filter is 40 meshes.

[0013] As a preferred embodiment of the present invention, a worm gear shaft is installed at the rotation center of the worm gear, and both ends of the worm gear shaft are screwed and installed on the side wall of the mounting cover. The guide groove is an annular groove, and the guide groove is obliquely distributed on the adjusting roller. The guide rod movably passes through the side wall of the mounting cover, and the horizontal length of the guide groove is adapted to the width of the filter.

[0014] As a preferred embodiment of the present invention, a rocker arm is installed on the rotation center of the scraper, the rocker arm and the scraper are not located in the same straight line, an extrusion block is installed on the rocker arm, a first push block is installed on the side wall of the collecting box, a second push block is installed at the center of the filter, and the second push block, the first push block and the extrusion block are located on the same horizontal plane.

[0015] As a preferred embodiment of the present invention, a tension spring is installed on the surface of the swing rod, and the other end of the tension spring is installed on the protrusion of the side wall of the swing rod. The tension spring is in a pull rope state, and the tension spring, the scraper and the swing rod form a triangle.

[0016] As a preferred embodiment of the present invention, a positioning plate is installed on one side of the fixed plate, the positioning plate is in an inclined state, a limiting block is installed on the fixed plate, and the side wall of the limiting block overlaps with the swing arm.

[0017] As a preferred embodiment of the present invention, a notch is provided on the surface of the collecting box, the notch is communicated with the internal chamber of the collecting box, the size of the notch and the size of the fixed plate are matched with each other, a push-pull rod is arranged through the inside of the collecting box, and the length of the push-pull rod is greater than twice the width of the filter.

[0018] As a preferred embodiment of the present invention, the heat exchange medium in the air source heat pump and the heat pipe heat exchanger is refrigerant.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Compared with traditional air source heat pumps, the compression ratio of the compressor of the air source heat pump of this device is small, and the working fluid does not need to be heated to too high a temperature and pressure. Basically, 25-30°C can meet the requirements, and the energy efficiency ratio is high. Compared with traditional devices that need to heat hot water and then heat the fresh air, the heat exchange link is reduced. At this time, the condenser of the air source heat pump is phase change heat transfer, and the heat exchange efficiency is higher. At the same time, the water pump is eliminated, reducing the energy consumption of the water pump.

[0021] Compared with the traditional air source heat pump, the present device is provided with a cleaning unit, in which the worm in the cleaning unit can rotate synchronously during the rotation of the output shaft of the driving motor, and drive the meshing worm wheel to rotate, thereby achieving the purpose of reducing the speed, and driving the guide groove position on the adjusting roller to change, driving the guide slider and guide rod on the guide groove to move, pulling the push-pull rod and the fixed plate to drive the scraper to move, and the movement of the scraper can clean the dust on the surface of the filter, thereby ensuring the smoothness of the air supply and reducing the possibility of blockage.

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 A three-dimensional structural diagram of a wellbore antifreeze heating device that couples a high-efficiency antifreeze air source heat pump with a heat pipe heat exchanger;

[0025] Figure 2 A cross-sectional view of the condenser of a wellbore antifreeze heating device that couples a high-efficiency antifreeze air source heat pump with a heat pipe heat exchanger;

[0026] Figure 3 The working medium flow diagram of the wellbore antifreeze heating device coupled with the high-efficiency antifreeze air source heat pump and the heat pipe heat exchanger;

[0027] Figure 4 It is a schematic diagram of the back structure of the heat pipe heat exchanger of the high-efficiency antifreeze air source heat pump and the heat pipe heat exchanger coupling wellbore antifreeze heating device;

[0028] Figure 5 A schematic diagram of the structure of a high-efficiency antifreeze air source heat pump coupled with a heat pipe heat exchanger to couple a wellbore antifreeze heating device without heat exchange fins;

[0029] Figure 6A schematic diagram of the structure of a high-efficiency antifreeze air source heat pump coupled with a heat pipe heat exchanger to couple a wellbore antifreeze heating device without the filter screen;

[0030] Figure 7 High-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8 A top view of the fixing plate of the wellbore antifreeze heating device coupling the high-efficiency antifreeze air source heat pump and the heat pipe heat exchanger;

[0032] Fig. 9 High-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device Figure 6 Bottom view of .

[0033] In the figure:

[0034] 1. Air source heat pump; 11. Compressor; 12. Condenser; 121. Liquid inlet; 122. Liquid outlet; 13. Standard throttling device; 14. Evaporator;

[0035] 2. heat pipe heat exchanger; 21. drive motor; 211. fan blade; 212. mounting cover; 221. filter screen; 222. heat exchange fin body; 23. heat exchange tube;

[0036] 3. Cleaning unit; 31. Worm; 311. Worm wheel; 32. Adjusting roller; 321. Guide groove; 322. Guide slider; 323. Guide rod; 33. Push-pull rod; 331. Fixed plate; 332. Scraper; 333. Positioning plate; 34. Swing rod; 341. Extrusion block; 342. Tension spring; 343. Limiting block; 35. Collection box; 351. First push block; 352. Second push block; 353. Notch;

[0037] 4. Shaft. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0039] Embodiment 1:

[0040] like Figures 1 to 9 As shown, a high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device includes an air source heat pump 1, a heat pipe heat exchanger 2, a wellbore 4, and a cleaning unit 3 installed on the heat pipe heat exchanger 2.

[0041] The air source heat pump 1 includes a compressor 11, a condenser 12, a standard throttling device 13 and an evaporator 14. The compressor 11 and the condenser 12 are interconnected, and the condenser 12 is connected to the standard throttling device 13. The standard throttling device 13 and the evaporator 14 are connected to the compressor 11. In winter, the air source heat pump refrigerant absorbs heat from the air and becomes a high-temperature and high-pressure gaseous refrigerant after being compressed by the compressor. The refrigerant releases heat to the heat pipe heat exchanger in the condenser. At this time, the refrigerant becomes a high-temperature and high-pressure liquid. After passing through the standard throttling device, it becomes a low-temperature and low-pressure liquid. The low-temperature and low-pressure liquid refrigerant absorbs heat from the air in the evaporator and becomes a low-temperature and low-pressure gas. It enters the compressor for compression and becomes a high-temperature and high-pressure gas. It enters the condenser and releases heat to the heat pipe heat exchanger. The repetitive cycle converts the heat in the air into heat for heating the mine air supply.

[0042] The heat pipe heat exchanger 2 includes a mounting cover 212 and a heat exchange fin body 222. The heat exchange fin body 222 is mounted at the air inlet of the mounting cover 212. Heat exchange tubes 23 are mounted on the inlet and outlet of the heat exchange fin body 222. One side of the heat exchange tube 23 is placed in the condenser 12. The air outlet of the mounting cover 212 corresponds to the shaft 4. A filter screen 221 is mounted on the mounting cover 212. A fan blade 211 is mounted on the mounting cover 212. A drive motor 21 is mounted at the rotation center of the fan blade 211. The working fluid in the heat pipe heat exchanger absorbs the heat released by the air source heat pump condenser and changes from liquid to gas, rises in the pipe and enters the heat exchange fins of the heat pipe heat exchanger. The fresh air is heated by the heat exchange fins of the heat pipe heat exchanger and then sent into the wellbore. The working fluid in the heat pipe heat exchanger changes from gas to liquid and descends to the condenser of the air source heat pump to absorb heat. After absorbing the heat, the working fluid in the heat pipe heat exchanger changes from liquid to gas and continues to rise. The cycle repeats itself and uses the heat generated by the air source heat pump to heat the fresh air.

[0043] The cleaning unit 3 includes a worm 31, which is connected to the output shaft of the driving motor 21, a worm wheel 311 meshing with the worm 31, an adjusting roller 32 installed on the worm wheel 311, a guide groove 321 is opened on the adjusting roller 32, a guide slider 322 is slidably arranged on the guide groove 321, a guide rod 323 is installed on the guide slider 322, a push-pull rod 33 is installed on the guide rod 323, a fixed plate 331 is installed on the end of the push-pull rod 33, a scraper 332 is rotatably installed on the fixed plate 331, the end of the scraper 332 is in contact with the surface of the filter screen 221, and a collecting box 35 is installed on both sides of the mounting cover 212. The worm in the cleaning unit can rotate synchronously during the rotation of the output shaft of the driving motor, and drive the meshing worm wheel to rotate, thereby achieving the purpose of reducing the speed, and driving the position of the guide groove on the adjusting roller to change, driving the guide slider and guide rod on the guide groove to move, pulling the push-pull rod and the fixed plate to drive the scraper to move, and the movement of the scraper can clean the dust on the surface of the filter, ensuring the smoothness of the air supply and reducing the possibility of blockage.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, in a specific embodiment, a liquid inlet 121 and a liquid outlet 122 are provided on the condenser 12, the liquid inlet 121 and the outlet of the compressor 11 are connected to each other, the liquid outlet 122 and the inlet of the standard throttling device 13 are connected to each other, the liquid inlet 121 and the liquid outlet 122 are not located on the same plane, and the height of the liquid inlet 121 is lower than the height of the liquid outlet 122. The height difference between the liquid inlet 121 and the liquid outlet 122 can ensure that heat exchange is fully performed in the condenser 12.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, further, the heat exchange tube 23 located inside the condenser 12 is U-shaped, and a gap is left between the heat exchange tube 23 located inside the condenser 12 and the inner wall of the condenser 12. The U-shape of the heat exchange tube 23 can increase the internal contact area, thereby further improving the heat exchange efficiency.

[0046] Embodiment 2:

[0047] The difference between the above embodiment and this embodiment is that: Figure 4 , Figure 5 , Figure 6 and Fig. 9As shown, the housing of the driving motor 21 is equipped with a bracket, and the bracket is welded and arranged on the outside of the mounting cover 212. The fan blade 211 is located in the gap between the driving motor 21 and the filter screen 221, and the number of blades of the fan blade 211 is an odd number, and the mesh number of the filter screen 221 is 40 meshes. The driving motor 21 can drive the fan blade 211 to rotate, thereby achieving the purpose of exhausting air, and the fresh air from the outside flows through the heat exchange fins 222, thereby completing the heating of the flowing fresh air, and then supplying air to the wellbore. The filter screen 221 can filter dust and impurities to ensure the cleanliness of the input gas.

[0048] like Figure 4 , Figure 5 , Figure 6 and Fig. 9 As shown, in a specific embodiment, a worm gear shaft is installed at the rotation center of the worm gear 311, and both ends of the worm gear shaft are screwed and installed on the side wall of the mounting cover 212, the guide groove 321 is an annular groove, the guide groove 321 is obliquely distributed on the adjusting roller 32, the guide rod 323 movably passes through the side wall of the mounting cover 212, and the horizontal length of the guide groove 321 is adapted to the width of the filter screen 221. When the output shaft of the driving motor 21 starts to rotate, a worm 31 is installed on the output shaft of the driving motor 21. At this time, the worm 31 starts to rotate, and a worm wheel 311 is meshed on the worm 31. At this time, the worm wheel 311 rotates synchronously, and the central worm wheel shaft rotates inside the mounting cover 212. After the worm wheel 311 rotates, it can drive the adjusting roller 32 on the surface to rotate, and the guide groove 321 on the adjusting roller 32 is meshed by the guide slider 322, and the guide rod 323 on the guide slider 322 is limited by the mounting cover 212, thereby driving the guide rod 323 on the surface and the guide slider 322 to reciprocate during the rotation of the adjusting roller 32.

[0049] like Figure 6 , Figure 7 and Figure 8 As shown, further, a swing rod 34 is installed on the rotation center of the scraper 332, the swing rod 34 and the scraper 332 are not located on the same straight line, an extrusion block 341 is installed on the swing rod 34, a first push block 351 is installed on the side wall of the collection box 35, a second push block 352 is installed at the center of the filter 221, and the second push block 352 and the first push block 351 are located on the same horizontal plane as the extrusion block 341. A tension spring 342 is installed on the surface of the swing rod 34, and the other end of the tension spring 342 is installed on the protrusion of the side wall of the swing rod 34. The tension spring 342 is in a pull rope state, and the tension spring 342, the scraper 332 and the swing rod 34 form a triangle. When the guide slider 322 drives the push-pull rod 33 to move outward, the push-pull rod 33 drives the fixed plate 331 to move outward along the filter screen 221, and finally the first push block 351 on the surface of the collection box 35 contacts the extrusion block 341 on the swing rod 34, driving the swing rod 34 and the extrusion block 341 to rotate clockwise around the rotation center ( Figure 7and Figure 8 As shown), during the rotation of the swing rod 34, the swing rod 34 pulls the tension spring 342 to lengthen until the swing rod 34 moves to the other side of the scraper 332. At this time, the scraper 332 is driven closer to each other by the tension spring 342. At this time, the scraper 332 will not contact the filter 221, so that the reset will not clean the surface of the filter.

[0050] Embodiment 3:

[0051] The difference between the above embodiment and this embodiment is that: Figure 6 , Figure 7 and Figure 8 As shown, a positioning plate 333 is installed on one side of the fixed plate 331, and the positioning plate 333 is in an inclined state. A limiting block 343 is installed on the fixed plate 331, and the side wall of the limiting block 343 overlaps with the swing rod 34. The positioning plate 333 limits the rotation of the scraper, and the limiting block 343 limits the rotation of the swing rod 34.

[0052] like Figure 6 , Figure 7 and Figure 8 As shown, in a specific embodiment, a notch 353 is provided on the surface of the collection box 35, and the notch 353 is connected to the internal chamber of the collection box 35, and the size of the notch 353 matches the size of the fixed plate 331. A push-pull rod 33 is provided inside the collection box 35, and the length of the push-pull rod 33 is greater than twice the width of the filter screen 221. When the guide slider 322 drives the push-pull rod 33 to move outward, the push-pull rod 33 drives the fixed plate 331 to move outward along the filter screen 221, and during the movement, the scraper 332 on the surface moves along the filter screen 221, and moves the impurities blocked on the surface of the filter screen 221 to the inside of the collection box 35, until the scraper 332 moves to the inside of the collection box 35, and then the impurities are completely put into the collection box 35.

[0053] Furthermore, the heat exchange medium in the air source heat pump 1 and the heat pipe heat exchanger 2 is a refrigerant. The refrigerant of the whole device is perfluorinated and does not contain water. Even if the device is shut down, there will be no freezing and cracking problems, which further improves the reliability during use.

[0054] The implementation principle of the high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device of this embodiment is as follows:

[0055] The main body of the device includes two parts: an air source heat pump 1 and a heat pipe heat exchanger 2. The air source heat pump 1 is composed of a compressor 11, a condenser 12, an evaporator 14, and a standard throttling device 13. In winter, the refrigerant of the air source heat pump 1 absorbs heat from the air and is compressed by the compressor 11 to become a high-temperature and high-pressure gaseous refrigerant. The refrigerant releases heat to the heat exchange tube 23 in the heat pipe heat exchanger 2 in the condenser 12. At this time, the refrigerant becomes a high-temperature and high-pressure liquid. After passing through the standard throttling device 13, it becomes a low-temperature and low-pressure liquid. The low-temperature and low-pressure liquid refrigerant absorbs the heat of the air in the evaporator 14 and becomes a low-temperature and low-pressure gas. It enters the compressor 11 to be compressed into a high-temperature and high-pressure gas, and enters the condenser 12 to release heat to the heat exchange tube 23 in the heat pipe heat exchanger 2. The repetitive cycle converts the heat in the air into heat for heating the mine air supply.

[0056] The working fluid in the heat pipe heat exchanger 2 changes from liquid to gas after absorbing the heat released by the condenser of the air source heat pump 1, rises in the pipe and enters the heat exchange fin body 222 of the heat pipe heat exchanger 2. The fresh air is heated by the heat exchange fin body 222 of the heat pipe heat exchanger 2 and then sent into the shaft 4 through the fan blades 211. The working fluid in the heat pipe heat exchanger 2 changes from gas to liquid and descends to the condenser 12 of the air source heat pump 1 to absorb heat. After absorbing the heat, the working fluid in the heat pipe heat exchanger 2 changes from liquid to gas and continues to rise. The cycle repeats itself and uses the heat generated by the air source heat pump 1 to heat the fresh air.

[0057] During normal use, the drive motor 21 can drive the fan blades 211 to rotate, thereby achieving the purpose of exhausting air, allowing the outside fresh air to flow through the heat exchange fin body 222, thereby completing the heating of the flowing fresh air and then supplying air to the wellbore.

[0058] When the output shaft of the driving motor 21 starts to rotate, a worm 31 is installed on the output shaft of the driving motor 21. At this time, the worm 31 starts to rotate, and a worm wheel 311 is meshed on the worm 31. At this time, the worm wheel 311 rotates synchronously, and the central worm wheel shaft rotates inside the mounting cover 212. After the worm wheel 311 rotates, it can drive the adjusting roller 32 on the surface to rotate, and the guide groove 321 on the adjusting roller 32 is meshed by the guide slider 322, and the guide rod 323 on the guide slider 322 is limited by the mounting cover 212, thereby driving the guide rod 323 on the surface and the guide slider 322 to reciprocate during the rotation of the adjusting roller 32.

[0059] When the guide slider 322 drives the push-pull rod 33 to move outward, the push-pull rod 33 drives the fixed plate 331 to move outward along the filter screen 221, and the scraper 332 on the surface moves along the filter screen 221 during the movement, and the impurities blocked on the surface of the filter screen 221 are moved into the collection box 35. After the scraper 332 moves into the collection box 35, the impurities are completely moved into the collection box 35. At this time, the first push block 351 on the surface contacts the extrusion block 341 on the swing rod 34, pushing the swing rod 34 and the extrusion block 341 to rotate clockwise around the rotation center ( Figure 7 and Figure 8 As shown), during the rotation of the swing rod 34, the swing rod 34 pulls the tension spring 342 to lengthen until the swing rod 34 moves to the other side of the scraper 332. At this time, the scraper 332 is driven closer to each other by the tension spring 342, and the scraper 332 does not contact the filter screen 221 at this time.

[0060] Then, when the guide slider 322 drives the push-pull rod 33 to move inward, the filter 221 and the scraper 332 will not contact each other, and the dust on the filter 221 will not be squeezed toward the center, thereby reducing the accumulation of dust in the center of the filter 221. After moving to the center of the filter 221, the scraper 332 can be pushed back to the initial state through the squeezing of the second push block 352, which is convenient for scraping and cleaning next time.

Claims

1. A high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device, comprising an air source heat pump (1), a heat pipe heat exchanger (2), a wellbore (4), and a cleaning unit (3) installed on the heat pipe heat exchanger (2), characterized in that: The air source heat pump (1) comprises a compressor (11), a condenser (12), a standard throttling device (13) and an evaporator (14); the compressor (11) and the condenser (12) are connected to each other; the condenser (12) is connected to the standard throttling device (13); the standard throttling device (13) and the evaporator (14); and the evaporator (14) and the compressor (11) are connected to each other; The heat pipe heat exchanger (2) comprises a mounting cover (212) and a heat exchange fin body (222); the heat exchange fin body (222) is mounted at the air inlet of the mounting cover (212); heat exchange pipes (23) are mounted on the inlet and outlet of the heat exchange fin body (222); one side of the heat exchange pipe (23) is placed in the condenser (12); the air outlet of the mounting cover (212) corresponds to the wellbore (4); a filter screen (221) is mounted on the mounting cover (212); a fan blade (211) is mounted on the mounting cover (212); and a driving motor (21) is mounted at the rotation center of the fan blade (211); The cleaning unit (3) comprises a worm (31), the worm (31) being connected to an output shaft of a driving motor (21), the worm (31) being meshed with a worm wheel (311), an adjusting roller (32) being mounted on the worm wheel (311), a guide groove (321) being provided on the adjusting roller (32), a guide slider (322) being slidably arranged on the guide groove (321), a guide rod (323) being mounted on the guide slider (322), a push-pull rod (33) being mounted on the guide rod (323), a fixing plate (331) being mounted at the end of the push-pull rod (33), a scraper (332) being rotatably mounted on the fixing plate (331), the end of the scraper (332) being in contact with the surface of the filter screen (221), and collection boxes (35) being mounted on both sides of the mounting cover (212).

2. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: The condenser (12) is provided with a liquid inlet (121) and a liquid outlet (122); the liquid inlet (121) and the outlet of the compressor (11) are connected to each other; the liquid outlet (122) and the inlet of the standard throttling device (13) are connected to each other; the liquid inlet (121) and the liquid outlet (122) are not located on the same plane; and the height of the liquid inlet (121) is lower than the height of the liquid outlet (122).

3. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: The heat exchange tube (23) located inside the condenser (12) is U-shaped, and a gap is left between the heat exchange tube (23) located inside the condenser (12) and the inner wall of the condenser (12).

4. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: The housing of the driving motor (21) is provided with a bracket, and the bracket is welded and arranged on the outside of the mounting cover (212); the fan blades (211) are located in the gap between the driving motor (21) and the filter screen (221); the number of blades of the fan blades (211) is an odd number, and the mesh number of the filter screen (221) is 40 meshes.

5. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: A worm gear shaft is installed at the rotation center of the worm gear (311), and both ends of the worm gear shaft are screwed and installed on the side wall of the installation cover (212). The guide groove (321) is an annular groove. The guide groove (321) is distributed obliquely on the adjustment roller (32). The guide rod (323) movably penetrates the side wall of the installation cover (212). The horizontal length of the guide groove (321) is adapted to the width of the filter screen (221).

6. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: A swing rod (34) is installed at the rotation center of the scraper (332); the swing rod (34) and the scraper (332) are not located on the same straight line; an extrusion block (341) is installed on the swing rod (34); a first push block (351) is installed on the side wall of the collection box (35); a second push block (352) is installed at the center of the filter screen (221); the second push block (352) and the first push block (351) are located on the same horizontal plane as the extrusion block (341).

7. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 6 is characterized in that: A tension spring (342) is installed on the surface of the swing rod (34), and the other end of the tension spring (342) is installed on a protrusion on the side wall of the swing rod (34). The tension spring (342) is in a pulling rope state, and the tension spring (342) forms a triangle with the scraper (332) and the swing rod (34).

8. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: A positioning plate (333) is installed on one side of the fixing plate (331), and the positioning plate (333) is in an inclined state. A limiting block (343) is installed on the fixing plate (331), and a side wall of the limiting block (343) overlaps with the swing rod (34).

9. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1 is characterized in that: A notch (353) is provided on the surface of the collection box (35), and the notch (353) is communicated with the internal chamber of the collection box (35). The size of the notch (353) and the size of the fixing plate (331) are mutually adapted. A push-pull rod (33) is provided through the interior of the collection box (35), and the length of the push-pull rod (33) is greater than twice the width of the filter screen (221).

10. The high-efficiency antifreeze air source heat pump and heat pipe heat exchanger coupled wellbore antifreeze heating device according to claim 1, characterized in that: The heat exchange medium in the air source heat pump (1) and the heat pipe heat exchanger (2) is both refrigerant.

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