Heat pump evaporation device

Abstract

The invention relates to a heat pump evaporation device which is characterized in that a top plate is arranged at the top of a shell, a through groove is formed in the position, close to the center, of the top plate, and a first fan is fixedly mounted in the through groove in the top plate; a base is arranged at the bottom of the shell; the lower surface of the base is sunken inwards to form a groove; a through groove is formed in the base, and a second fan is fixedly mounted in the through groove corresponding to the position of the groove; the first fan is arranged in the center of the two heat exchangers, and the second fans are arranged at the two ends of the two heat exchangers respectively. The arrangement of the groove is beneficial to air inlet and air outlet of the second fan; in the refrigerating mode and the heating mode, the first fan and the second fan rotate in the same direction, so that the first fan and the second fan are matched to form strong circulating air, and heat dissipation of the heat exchanger and the motor in the refrigerating mode is facilitated; and meanwhile, circulation of air in the shell is facilitated, so that heat in the air is conveniently absorbed in a heating mode.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a heat pump evaporation device. Background Art

[0002] Due to the adverse environmental changes, energy transformation has become an irreversible trend, and heating energy consumption in building energy consumption is one of the main concerns of energy crisis and environmental issues. Among them, heat pumps are widely used as a heating device that forces heat to flow from low-temperature objects to high-temperature objects in a reverse cycle. They can achieve large heating capacity by consuming a small amount of input work.

[0003] The existing heat pump evaporation devices used in large central air conditioners are mainly air source heat pumps, which are widely used due to their simple system, safe and reliable operation, etc., but they are easily affected by environmental meteorological parameters during operation. Specifically, under low-temperature heating conditions, the heat pump evaporation device cannot effectively absorb heat from the outside air, resulting in a low heating coefficient and ineffective heating; at this time, the air flow and evaporation temperature at the heat pump evaporator position are reduced, which is more unfavorable for the heat exchanger to absorb heat, further reducing the heating performance of the heat pump evaporation device at low temperatures.

[0004] At the same time, under high-temperature refrigeration conditions, the heat pump evaporator is used as a condensing device. Due to the high outdoor air temperature at high temperatures, the air source heat exchange method is not conducive to dissipating the heat of the refrigerant in a high-temperature environment, resulting in poor refrigeration effect; and the device is also prone to "thermal protection" due to excessive temperature, resulting in shutdown accidents or damage to the compressor, affecting the normal operation and service life of the device.

[0005] After searching, the Chinese invention patent application with application number "CN202310176264.1" discloses a heat pump evaporation device, including a heat pump housing, two heat exchangers arranged relatively in the heat pump housing, and a fan arranged on the top of the heat pump housing, and also includes two groups of spray assemblies for spraying water on the heat exchange surfaces of the corresponding heat exchangers, and a water supply assembly for supplying water to the spray assembly, the spray assembly includes two spray plates and multiple water spray holes, the two spray plates are arranged relatively on both sides of the corresponding heat exchangers, and the water spray holes are arranged on the side of the spray plate facing the heat exchanger; the spray plate is provided with a through portion for external air to enter the heat exchanger. The present invention has the advantages of improving the heat exchange efficiency and preventing the heat exchanger from frosting at low temperatures.

[0006] The above-mentioned heat pump evaporator adopts a combination of spraying and air circulation to realize the participation of spray water and outside air in the heat exchange of the heat exchanger. However, when the above-mentioned heat pump evaporator sprays, it sprays as a whole, and the entire surface of the heat exchanger is wrapped with liquid, which affects the heat exchange of the air flow, and cannot realize the simultaneous action of spray water and outside air, and the heating effect and cooling effect are not significantly improved.

[0007] In summary, there is an urgent need for a heat pump evaporation device to solve the above problems. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a heat pump evaporator, which solves the problem that when the existing heat pump evaporator is sprayed, the entire surface of the heat exchanger is wrapped with liquid, which affects the heat exchange of the air flow, and cannot realize the simultaneous action of spray water and external air, resulting in no obvious improvement in heating and cooling effects.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A heat pump evaporation device comprises a shell, wherein a top plate is arranged on the top of the shell, a through slot is arranged on the top plate near the center, and a first fan is fixedly installed in the through slot on the top plate.

[0011] A base is provided at the bottom of the housing; the lower surface of the base is recessed inward to form a groove; a through groove is provided on the base, corresponding to the position of the groove, and a second fan is fixedly installed in the through groove.

[0012] A rotating shaft is movably installed on the base and the top plate, and the rotating shaft is distributed in an array and arranged on both sides of the length direction of the shell; support plates are installed on both sides of the rotating shaft, and the two sides of the support plate are respectively set to black and bright white; a first gear is fixedly installed on the top of the rotating shaft, and the first gear is rotatably installed above the top plate; racks are arranged on the outer sides of the first gears distributed in an array, and the first gears on both sides can rotate synchronously driven by the racks, and after rotation, the support plates facing outwards present the same color, and the support plates facing inwards present the same color.

[0013] The heat pump evaporator is provided with a heating mode and a cooling mode. In the cooling mode, the support plate facing outward is bright white; in the heating mode, the support plate facing outward is black; in the cooling mode and the heating mode, the first fan and the second fan rotate in the same direction, with air entering on one side and air leaving on the other side.

[0014] A connecting rod is fixedly connected below the second gear, and a motor is fixedly installed at the bottom of the connecting rod. The operation of the motor can drive the rack to rotate, and then drive the rotating shaft to rotate, so as to control the direction of the support plate; the motor is arranged inside the shell.

[0015] A heat exchanger is fixedly mounted on the base, and two heat exchangers are provided. The heat exchangers exchange heat with external cold or heat sources to achieve cooling or heating; fins are fixedly mounted at both ends of the heat exchanger, the first fan is arranged in the center of the two heat exchangers, and the second fan is respectively arranged at both ends of the two heat exchangers.

[0016] A support seat is also fixedly installed on the base and is arranged between the two heat exchangers. A connecting plate distributed in an array is fixedly installed on the top of the support seat. The interior of the connecting plate is hollow, and a connecting pipe is connected to the hollow connecting plate. The end of the connecting pipe away from the heat exchanger is connected to a water inlet. A spray head is installed on the lower surface of the connecting plate, and the spray head can be rotated to spray downward on the heat exchanger.

[0017] The heat pump evaporation device also includes an expansion valve, an evaporator, a compressor, a first pipeline, a second pipeline and a water storage tank. The first pipeline and the second pipeline are installed on the heat exchanger, and the first pipeline and the second pipeline are used for water inlet and outlet of the heat exchanger; the first pipeline is connected to the water storage tank, the compressor, the evaporator and the expansion valve in sequence, and then flows back to the water storage tank, and is connected to the heat exchanger through the second pipeline.

[0018] As a preferred embodiment of the heat pump evaporator device described in the present invention, when the heat pump evaporator device is in a heating mode, the first pipe is the liquid inlet pipe of the heat exchanger, and the second pipe is the liquid outlet pipe of the heat exchanger; when the heat pump evaporator device is in a cooling mode, the first pipe is the liquid outlet pipe of the heat exchanger, and the second pipe is the liquid inlet pipe of the heat exchanger.

[0019] As a preferred embodiment of the heat pump evaporator described in the present invention, the heat pump evaporator is also provided with an intense cooling mode, the motor drives the rotating shaft to rotate so that the support plate is parallel to the width direction of the outer shell, and the first fan and the second fan rotate in opposite directions.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] 1. A heat pump evaporator as claimed in claim 1, wherein the top of the shell is provided with a top plate, the top plate is provided with a through groove near the center position, and a first fan is fixedly installed in the through groove on the top plate; a base is provided at the bottom of the shell; the lower surface of the base is recessed inwardly to form a groove; a through groove is provided on the base, corresponding to the position of the groove, and a second fan is fixedly installed in the through groove; the first fan is arranged in the center of the two heat exchangers, and the second fan is respectively arranged at the two ends of the two heat exchangers; the arrangement of the groove is conducive to the air intake and air outlet of the second fan; in the cooling mode and the heating mode, the first fan and the second fan rotate in the same direction, one side intakes air and the other side discharges air, so that the first fan and the second fan cooperate to form a strong circulating wind, which is helpful for the heat dissipation of the heat exchanger and the motor in the cooling mode; at the same time, it is conducive to the circulation of air inside the shell, so that in the heating mode, it is easy to absorb heat in the air.

[0022] 2. A heat pump evaporator device presented in the present invention is provided with a heating mode and a cooling mode. In the cooling mode, the support plate facing outward appears bright white to reflect the light source, thereby preventing heat from being concentrated on the outside of the heat pump evaporator device, and contributing to the heat dissipation inside the heat pump evaporator device. In the heating mode, the support plate facing outward appears black to absorb the heat carried by the light source, and the heat can be concentrated on the outer casing of the heat pump evaporator device, so that the heat pump evaporator device is in a high temperature environment, which contributes to the heat absorption inside the heat pump evaporator device and meets the needs of different environments.

[0023] 3. A heat pump evaporation device shown in the present invention is provided with a support base fixedly installed on the base, which is arranged between the two heat exchangers, and the top of the support base is fixedly installed with an array-distributed connecting plate; a spray head is installed on the lower surface of the connecting plate, and the spray head can be rotated to spray the heat exchanger downward, which can realize both overall spraying of the heat exchanger and local spraying, thereby achieving a synchronous effect of water and air.

[0024] 4. A heat pump evaporator device presented in the present invention is also provided with an intense cooling mode, the motor drives the rotating shaft to rotate so that the support plate is parallel to the width direction of the outer shell, the first fan and the second fan rotate in opposite directions, and air enters through the gaps between the support plates, and the first fan and the second fan are used to exhaust air synchronously; in combination with the water sprayed from the sprinkler head, the cooling effect is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a heat pump evaporation device shown in the present invention;

[0026] Figure 2 A schematic front view of the structure of a heat pump evaporation device shown in the present invention;

[0027] Figure 3 A schematic diagram of the structure of a heat pump evaporator shown in the present invention from a bottom view;

[0028] Figure 4 A schematic diagram of a top view of a heat pump evaporation device shown in the present invention;

[0029] Figure 5 for Figure 4 A schematic cross-sectional structure diagram of ;

[0030] Figure 6 It is a left-side structural schematic diagram of a heat pump evaporation device shown in the present invention;

[0031] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure.

[0032] In the figure: 1. shell; 2. support plate; 3. shaft; 4. base; 5. groove; 6. first gear; 7. rack; 8. second gear; 9. top plate; 10. first fan; 11. connecting rod; 12. motor; 13. heat exchanger; 14. fin; 15. second fan; 16. expansion valve; 17. evaporator; 18. compressor; 19. water tank; 20. first pipeline; 21. second pipeline; 22. connecting pipe; 23. connecting plate; 24. support seat; 25. water inlet; 26. sprinkler head. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] Embodiment 1:

[0035] A heat pump evaporation device, see Figure 1-7 , comprising a housing 1;

[0036] like Figure 1 As shown, a top plate 9 is provided on the top of the housing 1 , a through slot is provided on the top plate 9 near the center, and a first fan 10 is fixedly installed in the through slot on the top plate 9 .

[0037] like Figure 3 As shown, a base 4 is provided at the bottom of the housing 1; the lower surface of the base 4 is recessed inward to form a groove 5; a through groove is provided on the base 4, corresponding to the position of the groove 5, and a second fan 15 is fixedly installed in the through groove.

[0038] like Figure 1 , Figure 5 As shown, a rotating shaft 3 is movably installed on the base 4 and the top plate 9, and the rotating shaft 3 is distributed in an array and arranged on both sides of the length direction of the shell 1; support plates 2 are installed on both sides of the rotating shaft 3, and the two sides of the support plate 2 are respectively set to black and bright white; a first gear 6 is fixedly installed on the top of the rotating shaft 3, and the first gear 6 is rotatably installed above the top plate 9; a rack 7 is arranged on the outer side of the first gear 6 distributed in an array, and the first gear 6 on both sides can rotate synchronously under the drive of the rack 7. After rotation, the support plate 2 facing the outside presents the same color, and the support plate 2 facing the inside presents the same color.

[0039] The heat pump evaporator device is provided with a heating mode and a cooling mode. In the cooling mode and the heating mode, the first fan 10 and the second fan 15 rotate in the same direction, with air entering on one side and air exiting on the other side. The first fan 10 and the second fan 15 cooperate to form a strong circulating wind, which is helpful for the heat dissipation of the heat exchanger 13 and the motor 12 in the cooling mode; at the same time, it is beneficial to the circulation of air inside the shell 1, so that it is easy to absorb heat in the air in the heating mode; in the cooling mode, the support plate 2 facing outward is bright white, reflecting the light source, avoiding heat concentration on the outside of the heat pump evaporator device, and is helpful for the heat dissipation inside the heat pump evaporator device; in the heating mode, the support plate 2 facing outward is black, absorbing the heat carried by the light source, and the heat can be concentrated on the shell 1 of the heat pump evaporator device, so that the heat pump evaporator is in a high temperature environment, which is helpful for the heat absorption inside the heat pump evaporator device to meet the needs of different environments.

[0040] like Figure 7 As shown, a connecting rod 11 is fixedly connected to the bottom of the second gear 8, and a motor 12 is fixedly installed at the bottom of the connecting rod 11. The operation of the motor 12 can drive the rack 7 to rotate, and then drive the rotating shaft 3 to rotate, so as to control the direction of the support plate 2; the motor 12 is arranged inside the housing 1.

[0041] like Figure 2 , Figure 4 As shown, a heat exchanger 13 is fixedly mounted on the base 4, and two heat exchangers 13 are provided. The heat exchangers 13 exchange heat with external cold or heat sources to achieve cooling or heating; fins 14 are fixedly mounted at both ends of the heat exchanger 13, the first fan 10 is arranged in the center of the two heat exchangers 13, and the second fan 15 is respectively arranged at both ends of the two heat exchangers 13.

[0042] like Figure 5As shown, a support seat 24 is fixedly installed on the base 4 and is arranged between the two heat exchangers 13. An array-distributed connecting plate 23 is fixedly installed on the top of the support seat 24. The connecting plate 23 is hollow inside, and the hollow connecting plate 23 is connected to a connecting pipe 22. A spray head 26 is installed on the lower surface of the connecting plate 23, and the spray head 26 can be rotated to spray the heat exchanger 13 downward, which can realize both overall spraying of the heat exchanger 13 and local spraying.

[0043] It is worth mentioning that rotary spraying of liquid is an existing technology and will not be described in detail here.

[0044] like Figure 6 As shown, one end of the connecting pipe 22 away from the heat exchanger 13 is connected to a water inlet 25 .

[0045] like Figure 5 As shown, the heat pump evaporation device also includes an expansion valve 16, an evaporator 17, a compressor 18, a first pipe 20, a second pipe 21 and a water storage tank 19. The first pipe 20 and the second pipe 21 are installed on the heat exchanger 13, and the first pipe 20 and the second pipe 21 are used for water inlet and outlet of the heat exchanger 13; the first pipe 20 is connected to the water storage tank 19, the compressor 18, the evaporator 17 and the expansion valve 16 in sequence, and then flows back to the water storage tank 19, and is connected to the heat exchanger 13 through the second pipe 21.

[0046] As a preferred embodiment of the heat pump evaporator device described in the present invention, when the heat pump evaporator device is in a heating mode, the first pipe 20 is the liquid inlet pipe of the heat exchanger 13, and the second pipe 21 is the liquid outlet pipe of the heat exchanger 13; when the heat pump evaporator device is in a cooling mode, the first pipe 20 is the liquid outlet pipe of the heat exchanger 13, and the second pipe 21 is the liquid inlet pipe of the heat exchanger 13.

[0047] As a preferred embodiment of the heat pump evaporator device described in the present invention, the heat pump evaporator device is also provided with an intense cooling mode, the motor 12 drives the rotating shaft 3 to rotate, so that the support plate 2 is parallel to the width direction of the outer shell 1, and the first fan 10 and the second fan 15 rotate in opposite directions; air enters through the gap between the support plates 2, and the first fan 10 and the second fan 15 are used to exhaust air synchronously; and the water sprayed from the sprinkler head 26 is used to effectively improve the cooling effect.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat pump evaporation device, characterized in that: The invention comprises a housing (1), wherein a top plate (9) is arranged on the top of the housing (1), a through slot is arranged on the top plate (9) near the center, and a first fan (10) is fixedly installed in the through slot on the top plate (9); a base (4) is arranged on the bottom of the housing (1); the lower surface of the base (4) is recessed inwards to form a groove (5); a through slot is arranged on the base (4), corresponding to the position of the groove (5), and a second fan (15) is fixedly installed in the through slot of the base (4).

2. A heat pump evaporation device according to claim 1, characterized in that: The base (4) and the top plate (9) are movably mounted with a rotating shaft (3), the rotating shaft (3) being arranged in an array and disposed on both sides of the length direction of the housing (1); support plates (2) are mounted on both sides of the rotating shaft (3), the two sides of the support plate (2) being respectively arranged in black and bright white; a first gear (6) is fixedly mounted on the top of the rotating shaft (3), the first gear (6) being rotatably mounted above the top plate (9); racks (7) are arranged on the outer sides of the first gears (6) arranged in an array, the first gears (6) on both sides can rotate synchronously under the drive of the racks (7), and after rotation, the support plates (2) facing outwards present the same color, and the support plates (2) facing inwards present the same color.

3. A heat pump evaporation device according to claim 2, characterized in that: The heat pump evaporation device is provided with a heating mode and a cooling mode; in the cooling mode and the heating mode, the first fan (10) and the second fan (15) rotate in the same direction, with air entering on one side and air exiting on the other side.

4. A heat pump evaporation device according to claim 3, characterized in that: In the cooling mode, the support plate (2) facing outwards appears bright white.

5. A heat pump evaporation device according to claim 3, characterized in that: In the heating mode, the support plate (2) facing outward is black.

6. A heat pump evaporation device according to claim 3, characterized in that: A connecting rod (11) is fixedly connected below the second gear (8), and a motor (12) is fixedly installed at the bottom of the connecting rod (11). The operation of the motor (12) can drive the rack (7) to rotate, and then drive the rotating shaft (3) to rotate, so as to control the direction of the support plate (2); the motor (12) is arranged inside the housing (1).

7. A heat pump evaporation device according to claim 3, characterized in that: A heat exchanger (13) is fixedly mounted on the base (4), and two heat exchangers (13) are provided. The heat exchangers (13) exchange heat with external cold or heat sources to achieve cooling or heating; fins (14) are fixedly mounted at both ends of the heat exchanger (13), the first fan (10) is arranged in the center of the two heat exchangers (13), and the second fan (15) is respectively arranged at both ends of the two heat exchangers (13).

8. A heat pump evaporation device according to claim 7, characterized in that: A support seat (24) is also fixedly mounted on the base (4) and is arranged between the two heat exchangers (13); a connecting plate (23) distributed in an array is fixedly mounted on the top of the support seat (24); the connecting plate (23) is hollow inside, the hollow connecting plate (23) is connected to a connecting pipe (22), and the end of the connecting pipe (22) away from the heat exchanger (13) is connected to a water inlet (25); a spray head (26) is mounted on the lower surface of the connecting plate (23), and the spray head (26) can be rotated to spray downwards on the heat exchanger (13).

9. A heat pump evaporation device according to claim 8, characterized in that: The heat pump evaporation device further comprises an expansion valve (16), an evaporator (17), a compressor (18), a first pipeline (20), a second pipeline (21) and a water storage tank (19); the first pipeline (20) and the second pipeline (21) are installed on the heat exchanger (13); the first pipeline (20) and the second pipeline (21) are used for water inlet and water outlet to the heat exchanger (13).

10. A heat pump evaporation device according to claim 6, characterized in that: The heat pump evaporator is also provided with an intense cooling mode, wherein the motor (12) drives the rotating shaft (3) to rotate so that the support plate (2) is parallel to the width direction of the housing (1), and the first fan (10) and the second fan (15) rotate in opposite directions.

Images