Air source heat pump anti-freezing device

Abstract

The utility model discloses an air source heat pump anti-freezing device which comprises a pump machine, two air inlets are formed in the side wall of one side of the pump machine, an outer frame is detachably connected to the outer wall of the pump machine, surrounding plates are fixedly connected to the outer wall, opposite to the outer frame, of the pump machine at equal intervals, a flowing groove is formed between every two surrounding plates, and the flowing grooves are communicated with each other. The side wall of the side, close to the bottom edge, of the outer frame is connected with a heat preservation water input pipe opening and a heat preservation water output pipe opening, the heat preservation water input pipe opening and the heat preservation water output pipe opening communicate with the interiors of the two flowing grooves located in the two ends, and the outer frame is filled with heat insulation cotton. Compared with the prior art, the pump machine has the advantages that the heat insulation cotton is filled in the outer frame to play a role in basic heat insulation, influence on the pump machine due to the fact that outside cold air enters the pump machine is reduced, the pump machine is a heating device, generated heat can be concentrated in the pump machine to the maximum degree, and the self-heating anti-freezing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of antifreeze structure technology, specifically to an air source heat pump antifreeze device. Background Technology

[0002] An air source heat pump is a device that uses air as a source and converts it into heat energy through components such as a compressor. Because it has no polluting byproducts, saves energy, is environmentally friendly, and provides stable heating that is easy to adjust precisely, many public places use air source heat pumps as their main heating equipment.

[0003] Since air source heat pump components are installed outdoors, they are easily affected by the outside air temperature, especially the pump components and water tank components. Low temperatures can affect the heat energy conversion efficiency and even cause shutdown. Therefore, an air source heat pump antifreeze device is proposed here. Utility Model Content

[0004] The technical problem this utility model aims to solve is that components such as the air source heat pump are installed outdoors and are easily affected by the ambient air temperature, especially the pump and water tank components. Low temperatures can affect the heat energy conversion efficiency and even cause shutdowns. This utility model provides an air source heat pump antifreeze device that can protect the pump components and water tank from freezing, avoid the impact of low temperatures, and ensure the efficiency of heat energy conversion.

[0005] The technical solution adopted by this utility model to solve the technical problem is: an air source heat pump antifreeze device, including a pump, two air inlets are opened on one side wall of the pump, an outer frame is detachably connected to the outer wall of the pump, surrounding plates are fixedly connected at equal intervals to the outer wall of the pump and the outer frame, a flow groove is provided between every two surrounding plates, the flow grooves are interconnected, a heat insulation water inlet and a heat insulation water outlet are connected to the side wall of the outer frame near the bottom edge, the heat insulation water outlet and the heat insulation water inlet are connected to the interior of the two flow grooves located at both ends, and the interior of the outer frame is filled with heat insulation cotton.

[0006] As a preferred embodiment of this utility model, the pump has two through-holes in the side wall of one of the flow channels. The through-holes are connected to the heat exchanger inside the pump, and the two through-holes are the inlet and the outlet, respectively.

[0007] As a preferred technical solution of this utility model, a main pipe is provided on one side of the outer frame, and branch pipes and adapter pipes are fixedly connected to the two sides of the main pipe near the end respectively. The branch pipes and adapter pipes have an L-shaped structure and are staggered, with the adapter pipes being closer to the end. Check valves are connected to both the branch pipes and adapter pipes, and the branch pipes and adapter pipes are respectively connected to the inlet and outlet of the heat preservation water pipe.

[0008] As a preferred embodiment of this utility model, a return water inlet is fixedly connected to the side wall of the pump located between the insulated water inlet and the insulated water outlet. The return water inlet is connected to the end of the main pipe. A heat source outlet is fixedly connected to the side wall of the pump located above the return water inlet. The heat source outlet is connected to the heat energy output pipe. The heat source outlet and the return water inlet are respectively connected to two connecting ports.

[0009] As a preferred technical solution of this utility model, the end of the main pipe away from the pump is connected to the water tank via a water pump. The water tank is detachably connected to a return receiving pipe on the side wall near the top of the main pipe. An inner cavity is opened inside the water tank near the bottom, and an electric heating coil is embedded in the inner wall of the inner cavity.

[0010] This utility model has the following advantages: Firstly, filling the outer frame with heat-insulating cotton can play a basic role in heat insulation, reducing the impact of cold air entering the pump. Since the pump is a heat-generating device, this can concentrate the generated heat to the maximum extent inside the pump, improving its own heating and anti-freezing effect. However, as the temperature drops, the temperature difference between inside and outside increases, which can still affect the normal operation of the pump. Therefore, starting the water pump draws water heated by the electric heating coil from the water tank and sends it into the pump. The water is divided into two parts through the branch pipe and the main pipe. One part enters the heat exchanger inside the pump, and the other part enters the flow channel. The water flowing in the flow channel can form a thermal layer, which can play an anti-freezing role. Then, this water will enter the main pipe through the transfer pipe and finally enter the heat exchanger. It does not affect the normal heating and can play a good anti-freezing role. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the water tank and pump structure according to a preferred embodiment of the present invention;

[0012] Figure 2 This is an exploded structural diagram of the pump and outer frame according to a preferred embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of a half-section structure of a water tank according to a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Pump; 2. Air inlet; 3. Outer frame; 4. Heat source output port; 5. Return water input port; 6. Insulation water input port; 7. Insulation water output port; 8. Main pipe; 9. Branch pipe; 10. Transfer pipe; 11. Check valve; 12. Water tank; 13. Return receiving pipe; 14. Insulation cotton; 15. Surrounding plate; 16. Flow channel; 17. Connecting port; 18. Inner cavity; 19. Heating coil. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3 This utility model discloses an air source heat pump antifreeze device, including a pump 1. Two air inlets 2 are opened on one side wall of the pump 1. An outer frame 3 is detachably connected to the outer wall of the pump 1. Surrounding plates 15 are fixedly connected at equal intervals to the outer wall of the pump 1 and the outer frame 3. A flow channel 16 is provided between every two surrounding plates 15. The flow channels 16 are interconnected. A heat insulation water inlet 6 and a heat insulation water outlet 7 are connected to the side wall of the outer frame 3 near the bottom edge. The heat insulation water outlet 7 and the heat insulation water inlet 6 are connected to the interior of the two flow channels 16 located at both ends. The interior of the outer frame 3 is filled with heat insulation cotton 14. Two connecting ports 17 are opened through the side wall of the pump 1 located in one of the flow channels 16. The connecting ports 17 are connected to the heat exchanger inside the pump 1, and the two connecting ports 17 are the inlet and the outlet, respectively.

[0017] A main pipe 8 is provided on one side of the outer frame 3. Branch pipes 9 and adapter pipes 10 are fixedly connected to the two sides of the main pipe 8 near the end, respectively. The branch pipes 9 and adapter pipes 10 are L-shaped and staggered, with the adapter pipe 10 closer to the end. Check valves 11 are connected to both the branch pipes 9 and adapter pipes 10. The branch pipes 9 and adapter pipes 10 are respectively connected to the heat preservation water inlet 6 and the heat preservation water outlet 7. A return water inlet 5 is fixedly connected to the side wall of the pump 1 between the heat preservation water inlet 6 and the heat preservation water outlet 7. The return water inlet 5 is connected to the end of the main pipe 8. A heat source outlet 4 is fixedly connected to the side wall of the pump 1 above the return water inlet 5. The heat source outlet 4 is connected to the heat energy output pipe. The heat source outlet 4 and the return water inlet 5 are respectively connected to two connection ports 17.

[0018] The technical effects of this solution are as follows: water output from the water tank 12 is sent into the flow channel 16 through the branch pipe 9. The water flows along the flow channel 16 and gradually distributes to cover the entire outer wall of the pump 1. The heat dissipated by the water can form a thermal layer, so that the pump 1 is in an environment within a certain temperature range, thereby achieving the effect of antifreeze. In addition, because the water is flowing, it can carry away the cold air and achieve the effect of heat insulation. Finally, the water is reintroduced into the heat exchanger in the pump 1 through the transfer pipe 10 and the main pipe 8, achieving the effect of energy saving. Filling the outer frame 3 with heat insulation cotton 14 can further improve the antifreeze effect. Connecting the check valve 11 to the branch pipe 9 and the transfer pipe 10 can prevent backflow and ensure the stability of water flow.

[0019] The end of the main pipe 8 away from the pump 1 is connected to the water tank 12 via a water pump. The water tank 12 is detachably connected to the return receiving pipe 13 on the side wall near the top of the main pipe 8. The water tank 12 has an inner cavity 18 near the bottom. An electric heating coil 19 is embedded in the inner wall of the inner cavity 18.

[0020] The technical effect of this solution is as follows: connecting the electric heating coil 19 inside the water tank 12 can heat the bottom area of ​​the water tank 12. Since the water in the water tank 12 is output from the bottom, focusing on heating the bottom water can improve the output rate of hot water. The temperature of the hot water can be adjusted according to the situation, generally between 10-15 degrees Celsius. The specific temperature can be adjusted according to the environment of the installation site and the low temperature. Since it is mainly used in low temperature environment, the cold air can be prevented from freezing by the heat insulation cotton 14 and the self-heating of the pump 1.

[0021] Specifically, when this utility model is used, the electric heating coil 19 in the water tank 12 is activated to heat the water in the water tank 12. This heats the water that circulates back through the return receiving pipe 13. The heated water is then pumped into the pump 1 through the main pipe 8 and the branch pipe 9. The water through the branch pipe 9 enters the flow channel 16 and flows under pressure along the flow channel 16, thereby forming a thermal layer on the outer wall of the pump 1 to protect the pump 1 from freezing. The flowing water eventually flows back to the main pipe 8 from the insulated water output port 7 and the transfer pipe 10, and finally enters the heat exchanger in the pump 1 for heat conversion. Finally, the water is delivered into the room for heating from the heat source output port 4 and the heat energy output pipe.

[0022] If necessary, the electric heating coil 19 can be replaced with a pipe and connected to the heat energy output pipe connected to the heat source output pipe 4. In this way, the heat energy output from the pump 1 will enter the electric heating coil 19 to heat the water in the water tank 12. Then, the other end of the electric heating coil 19 is connected to the main pipe 8, so that the water in the electric heating coil 19 will enter the pump 1 through the main pipe 8 for heat conversion, thereby improving the energy-saving effect.

[0023] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0024] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air-source heat pump antifreeze device, comprising a pump (1), wherein two air inlets (2) are provided on one side wall of the pump (1), characterized in that, The pump (1) is detachably connected to an outer frame (3). The outer walls of the pump (1) and the outer frame (3) are fixedly connected at equal intervals to surrounding plates (15). A flow channel (16) is provided between every two surrounding plates (15). The flow channels (16) are interconnected. A heat-insulating water inlet (6) and a heat-insulating water outlet (7) are connected to the side wall of the outer frame (3) near the bottom edge. The heat-insulating water outlet (7) and the heat-insulating water inlet (6) are connected to the interior of the two flow channels (16) located at both ends. The interior of the outer frame (3) is filled with heat-insulating cotton (14).

2. The air source heat pump antifreeze device as described in claim 1, characterized in that, The pump (1) has two through-hole ports (17) in the side wall of one of the flow channels (16). The through-hole ports (17) are connected to the heat exchanger in the pump (1), and the two through-hole ports (17) are the inlet and the outlet, respectively.

3. The air source heat pump antifreeze device as described in claim 1, characterized in that, A main pipe (8) is provided on one side of the outer frame (3). A branch pipe (9) and a transfer pipe (10) are fixedly connected to the two sides of the main pipe (8) near the end respectively. The branch pipe (9) and the transfer pipe (10) are L-shaped structures. The branch pipe (9) and the transfer pipe (10) are staggered structures, and the transfer pipe (10) is closer to the end. A check valve (11) is connected to both the branch pipe (9) and the transfer pipe (10). The branch pipe (9) and the transfer pipe (10) are connected to the heat preservation water inlet (6) and the heat preservation water outlet (7) respectively.

4. The air source heat pump antifreeze device as described in claim 1, characterized in that, The pump (1) is fixedly connected to a return water inlet (5) on the side wall between the insulated water inlet (6) and the insulated water outlet (7). The return water inlet (5) is connected to the end of the main pipe (8). The pump (1) is fixedly connected to a heat source outlet (4) on the side wall above the return water inlet (5). The heat source outlet (4) is connected to the heat energy outlet pipe. The heat source outlet (4) and the return water inlet (5) are respectively connected to two connecting ports (17).

5. The air source heat pump antifreeze device as described in claim 3, characterized in that, The end of the main pipe (8) away from the pump (1) is connected to the water tank (12) via a water pump. The water tank (12) is detachably connected to the side wall near the top of the main pipe (8) and to the return receiving pipe (13). The water tank (12) has an inner cavity (18) near the bottom. The inner wall of the inner cavity (18) is inlaid with an electric heating coil (19).

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