A heat pump evaporation device

Abstract

The present invention relates to a heat pump evaporation device. By arranging a top plate at the top of the housing, a through groove is arranged near the center position on the top plate, and a first fan is fixedly installed in the through groove on the top plate; a base is arranged at the bottom of the housing; the lower surface of the base is recessed inward to form a groove; a through groove is arranged 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 two heat exchangers, and the second fans are respectively arranged at both ends of the two heat exchangers; the arrangement of the groove is beneficial to the air intake and exhaust of the second fan; in the refrigeration 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 cooperate to form a strong circulating air flow, which helps to dissipate the heat of the heat exchanger and the motor in the refrigeration mode; at the same time, it is beneficial to the circulation of the air inside the housing, so that in the heating mode, it is convenient to absorb the heat in the air.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and more particularly to a heat pump evaporation device. Background Art

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

[0003] The existing heat pump evaporation devices applied to large central air conditioners are mainly air-source heat pumps, which are widely used due to their advantages such as simple systems, safe and reliable operation, etc. However, they are easily affected by environmental meteorological parameters during operation. Specifically, in the low-temperature heating condition, the heat pump evaporation device cannot effectively absorb heat from the external air, resulting in a low heating coefficient and ineffective heating; at this time, the air flow rate and evaporation temperature at the position of the heat pump evaporator decrease, 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, in the high-temperature refrigeration condition, the heat pump evaporation device is used as a condensing device. Since the outdoor air temperature is high at high temperatures, it is not conducive to dissipating the heat of the refrigerant in a high-temperature environment by means of air-source heat exchange, 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 retrieval, a Chinese invention patent application with the application number "CN202310176264.1" discloses a heat pump evaporation device, which includes a heat pump housing, two heat exchangers arranged opposite to each other in the heat pump housing, and a fan arranged on the top of the heat pump housing. It also includes two groups of spraying components for spraying water on the heat exchange surfaces of the corresponding heat exchangers, and a water supply component for supplying water to the spraying components. The spraying component includes two spraying plates and a plurality of water spraying holes. The two spraying plates are arranged opposite to each other on both sides of the corresponding heat exchanger, and the water spraying holes are arranged on the side of the spraying plate facing the heat exchanger; the spraying 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 heat pump evaporation device realizes the heat exchange of the sprayed water and the external air participating in the heat exchanger by combining spraying and air circulation. However, when the above heat pump evaporation device sprays, it sprays as a whole, and the entire surface of the heat exchanger is wrapped with liquid, affecting the heat replacement of the air flow and unable to achieve the simultaneous action of the sprayed water and the external air, so the improvement of the heating effect and the refrigeration effect is not obvious.

[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 evaporation device, which solves the problem that when the existing heat pump evaporation device sprays, it sprays as a whole, the entire surface of the heat exchanger is wrapped with liquid, affecting the heat exchange of the air flow, and it is impossible to achieve the simultaneous action of the sprayed water and the external air, resulting in an insignificant improvement in the heating effect and the refrigeration effect.

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

[0010] A heat pump evaporation device includes a housing, a top plate is provided at the top of the housing, a through groove is provided near the center position on the top plate, and a first fan is fixedly installed in the through groove 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 groove position, 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, the rotating shafts are arranged in an array on both sides in the length direction of the housing; support plates are installed on both sides of the rotating shaft, and both sides of the support plate are respectively set to be black and bright white; a first gear is fixedly installed at the top of the rotating shaft, and the first gear is rotatably installed above the top plate; a rack is arranged outside the arrayed first gears, and the first gears on both sides can rotate synchronously driven by the rack. After rotation, the support plates facing the outside present the same color, and the support plates facing the inside present the same color.

[0013] The heat pump evaporation device is provided with a heating mode and a refrigeration mode. In the refrigeration mode, the support plates facing the outside present bright white; in the heating mode, the support plates facing the outside present black; in the refrigeration mode and the heating mode, the first fan and the second fan rotate in the same direction, with one side for air intake and the other side for air outlet.

[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 orientation of the support plate; the motor is arranged inside the housing.

[0015] A heat exchanger is fixedly installed on the base. There are two heat exchangers, which exchange heat with external cold and heat sources to achieve refrigeration or heating. Fins are fixedly installed at both ends of the heat exchanger. The first fan is arranged in the center of the two heat exchangers, and the second fans are respectively arranged at both ends of the two heat exchangers.

[0016] A support seat is also fixedly installed on the base, which is arranged between the two heat exchangers. An array of connecting plates is fixedly installed on the top of the support seat. The inside of the connecting plate is hollow, and a connecting pipe is connected to the hollow connecting plate. One 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 rotate to spray downward onto the heat exchanger.

[0017] The heat pump evaporation device further 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 to supply water to and discharge water from the heat exchanger. The first pipeline is sequentially connected to the water storage tank, the compressor, the evaporator, and the expansion valve, and then returns to the water storage tank, and is connected to the heat exchanger through the second pipeline.

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

[0019] As a preferred solution of the heat pump evaporation device of the present invention, the heat pump evaporation device is further provided with a strong refrigeration mode. The motor drives the rotating shaft to rotate, so that the support plate is parallel to the width direction of the housing, and the first fan and the second fan rotate in opposite directions.

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

[0021] 1. A heat pump evaporation device shown in the present invention is provided with a top plate at the top of the housing. A through groove is provided near the center of the top plate, and a first fan is fixedly installed in the through groove on the top plate; 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; the first fan is arranged in the center of the two heat exchangers, and the second fans are respectively arranged at both ends of the two heat exchangers; the setting of the groove is beneficial to the air inlet and outlet of the second fan; in the refrigeration mode and the heating mode, the first fan and the second fan rotate in the same direction, with air inlet on one side and air outlet on the other side, so that the first fan and the second fan cooperate to form a strong circulating air flow, which helps to dissipate heat from the heat exchanger and the motor in the refrigeration mode; at the same time, it is beneficial to the circulation of the air inside the housing, so that in the heating mode, it is convenient to absorb the heat in the air.

[0022] 2. A heat pump evaporation device shown in the present invention is provided with a heating mode and a refrigeration mode. In the refrigeration mode, the support plate facing the outside presents a bright white color, reflecting the light source and avoiding heat concentration on the outside of the heat pump evaporation device, which helps to dissipate heat inside the heat pump evaporation device; in the heating mode, the support plate facing the outside presents a black color, absorbing the heat carried by the light source, and the heat can be concentrated on the housing of the heat pump evaporation device, so that the heat pump evaporation device is in a high-temperature environment, which helps to absorb heat inside the heat pump evaporation device and meet the needs of different environments.

[0023] 3. A heat pump evaporation device shown in the present invention is provided with a support seat fixedly installed on the base, which is arranged between the two heat exchangers. An array of connecting plates is fixedly installed on the top of the support seat; a spray head is installed on the lower surface of the connecting plate, and the spray head can rotate and spray downward on the heat exchanger, which can not only achieve overall spraying on the heat exchanger, but also achieve local spraying, achieving the synchronous action of water and air.

[0024] 4. A heat pump evaporation device shown in the present invention is provided with a strong refrigeration mode. The motor drives the rotating shaft to rotate, making the support plate parallel to the width direction of the housing. The first fan and the second fan rotate in opposite directions, and air enters through the gap between the support plates, and the first fan and the second fan blow out air synchronously; combined with the water sprayed by the spray head, the cooling effect is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 Front view structural schematic diagram of a heat pump evaporation device shown in the present invention;

[0027] Figure 3 Bottom view structural schematic diagram of a heat pump evaporation device shown in the present invention;

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

[0029] Figure 5 is Figure 4 Cross-sectional structural schematic diagram;

[0030] Figure 6 Left view structural schematic diagram of a heat pump evaporation device shown in the present invention;

[0031] Figure 7 is Figure 6 Cross-sectional structural schematic diagram.

[0032] In the figure: 1, outer shell; 2, support plate; 3, rotating 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 storage tank; 20, first pipeline; 21, second pipeline; 22, connecting pipe; 23, connecting plate; 24, support seat; 25, water inlet; 26, spray head. Specific embodiments

[0033] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0034] Embodiment 1:

[0035] A heat pump evaporation device, please refer to Figures 1-7 , including an outer shell 1;

[0036] As Figure 1 shown, a top plate 9 is provided at the top of the outer shell 1, a through groove is provided near the center position on the top plate 9, and a first fan 10 is fixedly installed in the through groove on the top plate 9.

[0037] As Figure 3 shown, a base 4 is provided at the bottom of the outer shell 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] As Figure 1 ,Figure 5 As shown, a rotating shaft 3 is movably installed on the base 4 and the top plate 9. The rotating shafts 3 are arranged in an array and are disposed on both sides in the length direction of the housing 1; support plates 2 are installed on both sides of the rotating shaft 3, and both sides of the support plate 2 are respectively set to be 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 outside the arrayed first gears 6. The two first gears 6 on both sides can rotate synchronously under the drive of the rack 7. After rotation, the support plates 2 facing the outside present the same color, and the support plates 2 facing the inside present the same color.

[0039] 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 inlet on one side and air outlet on the other side. The first fan 10 and the second fan 15 cooperate to form a strong circulating air flow, which helps to dissipate heat from the heat exchanger 13 and the motor 12 in the cooling mode; at the same time, it is beneficial to the air circulation inside the housing 1, so that in the heating mode, it is convenient to absorb heat from the air; in the cooling mode, the support plate 2 facing the outside presents a bright white color, reflecting the light source and avoiding heat concentration on the outside of the heat pump evaporation device, which helps to dissipate heat inside the heat pump evaporation device; in the heating mode, the support plate 2 facing the outside presents a black color, absorbing the heat carried by the light source, and the heat can be concentrated on the housing 1 of the heat pump evaporation device, so that the heat pump evaporation device is in a high-temperature environment, which helps to absorb heat inside the heat pump evaporation device and meet the needs of different environments.

[0040] As Figure 7 shown, 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 orientation of the support plate 2; the motor 12 is arranged inside the housing 1.

[0041] As Figure 2 、 Figure 4 shown, a heat exchanger 13 is fixedly installed on the base 4. There are two heat exchangers 13, and the heat exchanger 13 exchanges heat with an external cold heat source to achieve refrigeration or heating; fins 14 are fixedly installed 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] As Figure 5As shown, a support base 24 is also fixedly installed on the base 4, which is arranged between the two heat exchangers 13. An array of connecting plates 23 is fixedly installed on the top of the support base 24. The inside of the connecting plate 23 is hollow, and a connecting pipe 22 is connected to the hollow connecting plate 23. A spray head 26 is installed on the lower surface of the connecting plate 23. The spray head 26 can rotate and spray downward onto the heat exchanger 13, which can not only achieve overall spraying of the heat exchanger 13 but also achieve local spraying.

[0043] It is worth mentioning that the rotary spraying of liquid is a prior art and will not be elaborated here one by one.

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

[0045] As Figure 5 shown, the heat pump evaporation device further 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 supply water to and discharge water from the heat exchanger 13. The first pipe 20 is sequentially connected to the water storage tank 19, the compressor 18, the evaporator 17, and the expansion valve 16, and then returns to the water storage tank 19, and is connected to the heat exchanger 13 through the second pipe 21.

[0046] As a preferred solution of the heat pump evaporation device of the present invention, when the heat pump evaporation device is in the 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 evaporation device is in the 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 solution of the heat pump evaporation device of the present invention, the heat pump evaporation device is further provided with a strong 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 housing 1, and the first fan 10 and the second fan 15 rotate in opposite directions. Air enters through the gaps between the support plates 2, and the first fan 10 and the second fan 15 discharge air synchronously. Combined with the water sprayed by the spray head 26, the cooling effect is effectively improved.

[0048] 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 by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended 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), and a second fan (15) is fixedly installed in the through slot of the base (4) corresponding to the position of the groove (5); a rotating shaft (3) is movably installed on the base (4) and the top plate (9), and the rotating shaft (3) is arranged in an array on both sides of the length direction of the housing (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 arranged in black and bright white.

2. A heat pump evaporation device according to claim 1, characterized in that: A first gear (6) is fixedly mounted on the top of the rotating shaft (3), and the first gear (6) is rotatably mounted above the top plate (9); racks (7) are arranged on the outer sides of the first gears (6) distributed in an array, and 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 outwards appears black.

6. A heat pump evaporation device according to claim 3, characterized in that: A second gear (8) is fixedly mounted above the top plate; a connecting rod (11) is fixedly connected below the second gear (8); a motor (12) is fixedly mounted at the bottom of the connecting rod (11); the motor (12) can drive the rack (7) to rotate, thereby driving 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 connection plate (23) distributed in an array is fixedly mounted on the top of the support seat (24); the connection plate (23) is hollow inside, the hollow connection plate (23) is connected to a connection pipe (22), and one end of the connection 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 connection plate (23); the spray head (26) can be rotated to spray downwards onto 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 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); the first pipe (20) and the second pipe (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 evaporation device is also provided with a strong 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.

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