Energy-saving heat extraction device of air source heat pump

Abstract

The utility model provides an energy-saving heat extraction device of an air source heat pump, which comprises a source heat pump body and an evaporator, the top of the source heat pump body is provided with a radiating air outlet pipe, the peripheral side wall of the source heat pump body is provided with an air inlet, and the air inlet faces the evaporator; the preheating assembly is arranged outside the air inlet and comprises a heat absorption plate, and a plurality of ventilation openings are formed in the surface of the heat absorption plate, so that air entering the air inlet is preheated through the ventilation openings firstly; the preheating assembly comprises a water storage tank. The preheating assembly and the heat absorption plate are arranged to absorb heat and transmit the heat to the water storage tank, the water storage tank dissipates heat through the heat dissipation fins on the thin plate, air needs to pass through the ventilation opening firstly, and due to the fact that the heat absorption plate absorbs heat in the water storage tank to increase the temperature, when the heat dissipation fins dissipate heat, the ventilation opening has heat. When air passes through the ventilation opening, heat is brought to the evaporator, so that the heat exchange efficiency of the evaporator is improved, and extra energy consumption is not needed.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, and in particular to an energy-saving heat extraction device for an air source heat pump. Background Technology

[0002] Traditional air source heat pumps typically include a compressor, a four-way valve, a condenser, a throttling element, an evaporator, and a gas-liquid separator. The compressor's exhaust port, four-way valve, condenser, throttling element, evaporator, gas-liquid separator, and compressor return port form a refrigerant circulation loop through working fluid heat exchange tubes. For example, Chinese utility model patent CN216204480U discloses a high-efficiency evaporator for air source heat pumps. By setting the evaporator's heat exchange fins to an inverted "M" shape, the evaporation area is increased without changing the footprint. Simultaneously, the top fan structure ensures uniform airflow, fully utilizing the evaporation capacity, improving product thermal efficiency, and ensuring optimal performance.

[0003] However, in actual operation, it was found that the heat extraction efficiency is low, especially in cold winter when the ambient temperature drops significantly. This limits the heat pump system's ability to extract heat from the air. Since the heat content in the air decreases as the temperature drops, the heat pump needs to consume more electricity to drive the compressor and other components, resulting in a significant increase in energy consumption. Therefore, it is necessary to develop an energy-saving heat extraction device for air source heat pumps. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes an energy-saving heat extraction device for an air source heat pump, which can more accurately solve the problems described above.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes an energy-saving heat extraction device for an air source heat pump, including a heat pump body and an evaporator. The heat pump body has a heat dissipation outlet pipe on its top and an air inlet on its peripheral sidewall, which faces the evaporator. It also includes a preheating component, which is disposed outside the air inlet. The preheating component includes a heat absorption plate, and the surface of the heat absorption plate has several ventilation holes, so that the air entering the air inlet is preheated by passing through the ventilation holes.

[0007] Furthermore, the preheating component includes a water storage tank and an inner cavity formed within the water storage tank. The heat absorption plate is fixedly connected to the outer wall of the water storage tank, and a glass layer is fixedly connected to the outer wall of the heat absorption plate. A heat dissipation fin is fixedly connected to the inner wall of the vent, and the heat dissipation fin includes a plurality of equidistantly arranged fins.

[0008] Furthermore, a plurality of heat-conducting rods are fixedly connected to the inner wall of the glass layer, and all of the heat-conducting rods extend through the water storage tank into the inner cavity; all of the heat-conducting rods are curved rods.

[0009] Furthermore, a connecting pipe is fixedly connected to the top of the heat absorption plate. One end of the connecting pipe is connected to the inner cavity, and a support pipe is fixedly connected to the other end of the connecting pipe. Several second ring pipes are fixedly connected to the support pipe, and a first ring pipe is fixedly connected to the ends of the several second ring pipes away from the support pipe. The support pipe, the second ring pipes, and the first ring pipe work together to form a fixing cover, which is fitted onto the heat dissipation exhaust pipe.

[0010] Furthermore, the water storage tank includes a thick plate and a thin plate. The thick plate is located on the outside of the water storage tank, and the thin plate and several heat dissipation fins are fixed together. An insulation layer is fixedly connected to the outer peripheral sidewall of the thick plate.

[0011] Furthermore, the water storage tank is fixedly connected to a pair of inlet and outlet water pipes relative to the outer wall, and each pair of inlet and outlet water pipes is equipped with a detachable sealing cover, and both pairs of inlet and outlet water pipes are connected to the interior of the inner cavity.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model sets up a preheating component, and the heat absorption plate absorbs heat and transfers it to the water storage tank. The water storage tank dissipates heat through multiple heat dissipation fins on the thin plate. The air needs to pass through the vent first. Since the water storage tank absorbs heat and rises in temperature through the heat absorption plate, when it dissipates heat through the heat dissipation fins, the vent has heat. When the air passes through the vent, it brings the heat to the evaporator, thereby improving the heat exchange efficiency of the evaporator and eliminating the need for additional energy consumption, thus improving energy efficiency.

[0014] 2. By setting up a fixing cover, this utility model has two advantages. First, the fixing cover can serve as a fixing frame for installing the water storage tank, which facilitates installation. Second, when the heat pump body dissipates heat, its heat is discharged through the heat dissipation duct. Since the fixing cover is located above the heat dissipation duct, it will come into contact with the duct body when discharging heat. The duct body will be heated by the heat and heat the water inside, thereby further utilizing the waste heat. The above structure is beneficial for assisting the air source heat pump in heat extraction in cold weather and improving the energy-saving effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the preheating component in this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the preheating component in this utility model;

[0018] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 for Figure 2 Enlarged structural diagram at point B;

[0020] Figure 6 for Figure 3 Enlarged structural diagram at point C;

[0021] Figure 7 This is a schematic diagram of the heat-conducting rod in this utility model.

[0022] Figure 8 for Figure 7 Enlarged structural diagram at point D.

[0023] In the diagram: 1. Source heat pump body; 2. Water storage tank; 3. Ventilation opening; 4. Fixing cover; 5. Heat absorption plate; 6. First ring pipe; 7. Support pipe; 8. Second ring pipe; 9. Connecting pipe; 10. Heat dissipation fins; 11. Thin plate; 12. Thick plate; 13. Heat-conducting rod; 14. Inner cavity; 15. Glass layer; 16. Insulation layer; 17. Inlet and outlet water pipes. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] An energy-saving heat extraction device for an air source heat pump, such as Figures 1-8 As shown, it includes a heat pump body 1 and an evaporator. The heat pump body 1 is provided with a heat dissipation air outlet pipe on its top and an air inlet on its side wall, which faces the evaporator. It also includes a preheating component, which is located outside the air inlet. The preheating component includes a heat absorption plate 5, and the surface of the heat absorption plate 5 is provided with several ventilation holes 3, so that the air entering the air inlet is preheated by passing through the ventilation holes 3.

[0027] The preheating assembly includes a water storage tank 2 and an inner cavity 14 opened in the water storage tank 2. A heat absorption plate 5 is fixedly connected to the outer wall of the water storage tank 2, and a glass layer 15 is fixedly connected to the outer wall of the heat absorption plate 5. A heat dissipation fin 10 is fixedly connected to the inner wall of the vent 3, and the heat dissipation fin 10 includes a number of equidistant fins.

[0028] The technical solutions described in the above embodiments of this application have at least the following technical effects or advantages: By setting up a preheating component, during use, sunlight shines on the heat absorption plate 5 during the day, and the heat absorption plate 5 absorbs heat and transfers it to the water storage tank 2. Since the water storage tank 2 is provided with multiple vents 3, and the space between the vents 3 and the inner cavity 14 is a thin plate 11, the advantage of this arrangement is that the water storage tank 2 dissipates heat through multiple heat dissipation fins 10 on the thin plate 11. When the heat pump body 1 is working, it needs to draw in outside air and pass it through the evaporator. In this process, the air needs to pass through the vents 3 first. Since the water storage tank 2 absorbs heat and heats up through the heat absorption plate 5, when it dissipates heat through the heat dissipation fins 10, the vents 3 have heat. When the air passes through the vents 3, it brings the heat to the evaporator, thereby improving the heat exchange efficiency of the evaporator without the need for additional energy consumption, thus improving energy efficiency.

[0029] Several heat-conducting rods 13 are fixedly connected to the inner wall of the glass layer 15. The material is a metal with good thermal conductivity in the prior art. The heat-conducting rods 13 extend through the water tank 2 into the inner cavity 14. The heat-conducting rods 13 are all curved rods. The curved rods can increase the contact area and thus improve the heat conduction capacity. By setting a peeling layer 15 on the outer wall of the heat absorber plate 5, the coating on the heat absorber plate 4 is prevented from falling off. At the same time, it is convenient to clean the dust on the outer wall of the glass layer 15, which is convenient for later maintenance.

[0030] A connecting pipe 9 is fixedly connected to the top of the heat absorption plate 5. One end of the connecting pipe 9 is connected to the inner cavity 14, and the other end of the connecting pipe 9 is fixedly connected to a support pipe 7. Several second ring pipes 8 are fixedly connected to the support pipe 7. The ends of the several second ring pipes 8 away from the support pipe 7 are fixedly connected to a first ring pipe 6. The support pipe 7, the second ring pipes 8 and the first ring pipe 6 work together to form a fixing cover 4, which is fitted onto the heat dissipation air outlet pipe.

[0031] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: By setting a fixed cover 4, which covers the heat dissipation air outlet pipe, on the one hand, it can serve as a fixed frame for installing the water storage tank 2, thus facilitating installation; on the other hand, the fixed cover 4 consists of multiple pipes, and the pipes are connected to the water storage tank 2. The advantage of this arrangement is that when the heat pump body 1 dissipates heat, its heat is discharged through the heat dissipation air outlet pipe. Since the fixed cover 4 is located above the heat dissipation air outlet pipe, it will contact the pipes when discharging heat. The pipes will be heated by the heat and heat the water inside them, thereby further utilizing waste heat and improving the energy-saving effect.

[0032] The water storage tank 2 includes a thick plate 12 and a thin plate 11. The thick plate 12 is located on the outside of the water storage tank 2. The thin plate 11 and several heat dissipation fins 10 are fixed. An insulation layer 16 is fixedly connected to the outer peripheral side wall of the thick plate 12. The thick plate 12 and the insulation layer 16 improve the heat preservation capacity of the water storage tank 2, so that its heat can be dissipated as much as possible through the thin plate 11 and the heat dissipation fins 10.

[0033] A pair of inlet and outlet water pipes 17 are fixedly connected to the outer wall of the water storage tank 2. Each pair of inlet and outlet water pipes 17 is equipped with a detachable sealing cover, and both inlet and outlet water pipes 17 are connected to the interior of the inner cavity 14. By setting up a pair of inlet water pipes 17, it is only necessary to connect an external water source to one of the inlet and outlet water pipes 17. After the water flows into the water storage tank 2, it is discharged through the other inlet and outlet water pipe 17, which facilitates water replacement and maintenance.

[0034] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. An energy-saving heat extraction device for an air source heat pump, comprising a heat pump body (1) and an evaporator, wherein a heat dissipation air outlet pipe is provided on the top of the heat pump body (1), and an air inlet is provided on the periphery of the heat pump body (1), with the air inlet facing the evaporator. It also includes a preheating component, which is set outside the air inlet. The preheating component includes a heat absorption plate (5), and the surface of the heat absorption plate (5) is provided with several ventilation holes (3) so that the air entering the air inlet is preheated by passing through the ventilation holes (3).

2. The energy-saving heat extraction device for an air source heat pump according to claim 1, characterized in that, The preheating assembly includes a water storage tank (2) and an inner cavity (14) opened in the water storage tank (2). The heat absorption plate (5) is fixedly connected to the outer wall of the water storage tank (2), and a glass layer (15) is fixedly connected to the outer wall of the heat absorption plate (5). The vent (3) has a heat dissipation fin (10) fixedly connected to its inner wall. The heat dissipation fin (10) includes several equidistantly arranged fins.

3. The energy-saving heat extraction device for an air source heat pump according to claim 2, characterized in that, A plurality of heat-conducting rods (13) are fixedly connected to the inner wall of the glass layer (15), and the plurality of heat-conducting rods (13) extend through the water tank (2) into the inner cavity (14); Several of the heat-conducting rods (13) are curved rods.

4. The energy-saving heat extraction device for an air source heat pump according to claim 2, characterized in that, The heat absorption plate (5) is fixedly connected to a connecting pipe (9). One end of the connecting pipe (9) is connected to the inner cavity (14). The other end of the connecting pipe (9) is fixedly connected to a support pipe (7). Several second ring pipes (8) are fixedly connected to the support pipe (7). The ends of several second ring pipes (8) away from the support pipe (7) are fixedly connected to a first ring pipe (6). The support tube (7), the second ring tube (8), and the first ring tube (6) work together to form a fixing cover (4), which is fitted onto the heat dissipation exhaust pipe.

5. The energy-saving heat extraction device for an air source heat pump according to claim 4, characterized in that, The water storage tank (2) includes a thick plate (12) and a thin plate (11). The thick plate (12) is located outside the water storage tank (2). The thin plate (11) and several heat dissipation fins (10) are fixed. An insulation layer (16) is fixedly connected to the outer peripheral side wall of the thick plate (12).

6. The energy-saving heat extraction device for an air source heat pump according to claim 5, characterized in that, The water storage tank (2) is fixedly connected to a pair of inlet and outlet water pipes (17) on its outer wall. Each pair of inlet and outlet water pipes (17) is equipped with a detachable sealing cover, and both pairs of inlet and outlet water pipes (17) are connected to the interior of the inner cavity (14).

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