Efficient solar heat pump water heater device

Abstract

The utility model discloses an efficient solar heat pump water heater device, which relates to the field of expansion valves in heat pump circulation pipelines, and comprises a solar heat collector, an S-shaped heat collecting pipe is mounted in the solar heat collector, an output pipeline is mounted at the output end of the solar heat collector, a temperature sensing bulb is fixedly mounted on the outer wall of the output pipeline, and the temperature sensing bulb is fixedly mounted on the outer wall of the output pipeline. The output end of the temperature sensing bulb is connected with a capillary copper pipe, and the capillary copper pipe is connected with an expansion valve mechanism. The expansion valve mechanism comprises a valve body unit, an adjustable valve seat unit and an adjusting unit. The valve body unit comprises a valve body, an input port is formed in an input pipe of the valve body, an output port is formed in an output pipe of the valve body, and the adjustable valve seat unit is located above the output pipe of the valve body and penetrates to an inner cavity of the output port. The expansion valve mechanism is arranged, so that the expansion valve does not need to be disassembled during adjustment, and the adjustment efficiency and safety are further improved.

Description

Technical Field

[0001] The utility model relates to the field of expansion valves in heat pump circulation pipelines, in particular to a high-efficiency solar heat pump water heater device. Background Art

[0002] The heat of the solar heat pump water heater comes from solar energy. The heat is transferred to the water tank through heat exchange, thereby heating the water tank. In this way, the water tank does not need to be installed together with the solar collector panel, which is more beautiful and safer than the vacuum tube solar energy collector.

[0003] In the prior art, in solar heat pump water heaters, after the refrigerant exchanges heat with the water in the water tank, it needs to pass through the expansion valve, and the refrigerant is throttled by the expansion valve to reduce the pressure and temperature of the refrigerant. The ball valve in the expansion valve can generally be adjusted through the adjustment seat, but when adjusting, the expansion valve needs to be disassembled for adjustment. This adjustment method requires a shutdown operation, so there is a risk of refrigerant leakage during the disassembly process. Utility Model Content

[0004] The purpose of the present invention is to provide a high-efficiency solar heat pump water heater device in order to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a high-efficiency solar heat pump water heater device, comprising a solar collector, an S-shaped heat collecting tube installed inside the solar collector, an output pipe installed at the output end of the solar collector, a temperature sensing bulb fixedly installed on the outer wall of the output pipe, a capillary copper tube connected to the output end of the temperature sensing bulb, and the capillary copper tube connected to an expansion valve mechanism;

[0006] The expansion valve mechanism includes a valve body unit, an adjustable valve seat unit and an adjustment unit;

[0007] The valve body unit includes a valve body, an input port is opened inside the input pipe of the valve body, an output port is opened on the output pipe of the valve body, the adjustable valve seat unit is located above the output pipe of the valve body and penetrates into the inner cavity of the output port, and the adjustment unit includes an inner cavity installed on the outer wall of the output pipe of the valve body and extending to the output port.

[0008] As a further solution of the present invention: the output pipe is connected to the compressor through a pipe, the compressor is connected to the input end of the heat exchange pipe in the water tank through a pipe, the valve body is connected to the output end of the heat exchange pipe in the water tank, the output end of the output port is connected to the input end of the solar collector through a pipe, and the input pipe and output pipe of the valve body are distributed vertically.

[0009] As a further solution of the present invention: the adjustable valve seat unit includes a connecting seat integrally formed on the top of the valve body output pipe, the connecting seat is a hollow structure, and the top port of the connecting seat is connected to one end of the capillary copper tube, a diaphragm is installed on the inner wall of the connecting seat, a synchronous shaft is provided at the bottom of the diaphragm, the outer wall of the synchronous shaft is slidably connected to a rotating shaft, the rotating shaft is rotatably connected to the inside of the output pipe of the valve body, and the outer wall of the synchronous shaft is fixedly connected to a ball valve for adjusting the size of the output port and the input port.

[0010] As a further solution of the present invention: the adjustable valve seat unit includes a limiting sliding groove integrally formed on the outer periphery of the synchronization shaft, and the inner wall of the rotating shaft is provided with a limiting sliding block for the limiting sliding groove to slide up and down.

[0011] As a further solution of the present invention: the adjusting unit includes a hexagonal plate fixedly connected to the outer wall of the rotating shaft and extending to the outside of the valve body, and a hexagonal head integrally formed at the bottom end of the synchronous shaft. The outer periphery of the synchronous shaft and the hexagonal head at its bottom is movably connected with a sleeve, and a spring is provided between the bottom end of the inner wall of the sleeve and the hexagonal head. The bottom end of the sleeve is fixedly connected to an adjusting seat, and the adjusting seat is threadedly connected to the inner wall of the output port, and a hollow portion is provided inside the adjusting seat.

[0012] As a further solution of the present invention: the top of the synchronization shaft contacts but is not connected to the bottom end of the diaphragm, and the two ends of the spring contact but are not connected to the hexagonal head and the inner wall of the sleeve.

[0013] As a further solution of the present invention: the outer wall of the connecting seat and the outer wall of the inlet pipe of the valve body are fixedly connected by a fixing rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up the expansion valve mechanism, there is no need to disassemble the expansion valve when making adjustments, thereby further improving the efficiency and safety of the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the expansion valve mechanism of the present utility model;

[0018] Figure 3 For the utility model Figure 2 A partial enlarged view of the middle part;

[0019] Figure 4This is a schematic diagram of the installation of the synchronous shaft and the rotating shaft of the utility model.

[0020] In the figure: 1. Solar collector; 2. Output pipe; 3. Temperature sensing package; 4. Capillary copper tube; 5. Connecting seat; 6. Valve body; 7. Diaphragm; 8. Input port; 9. Output port; 10. Rotating shaft; 11. Ball valve; 12. Sleeve; 13. Spring; 14. Adjusting seat; 15. Hollow part; 16. Hexagonal plate; 17. Synchronizing shaft; 18. Limiting slider; 19. Limiting slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 In an embodiment of the present invention, a high-efficiency solar heat pump water heater device includes a solar collector 1, an S-shaped heat collecting tube is installed inside the solar collector 1, an output pipe 2 is installed at the output end of the solar collector 1, a temperature sensing package 3 is fixedly installed on the outer wall of the output pipe 2, the output end of the temperature sensing package 3 is connected to a capillary copper tube 4, and the capillary copper tube 4 is connected to an expansion valve mechanism; the expansion valve mechanism includes a valve body unit, an adjustable valve seat unit and a regulating unit; the valve body unit includes a valve body 6, and an input port is opened inside the input pipe of the valve body 6 8. An output port 9 is provided on the output pipe of the valve body 6. The adjustable valve seat unit is located above the output pipe of the valve body 6 and extends through the inner cavity of the output port 9. The adjustment unit includes an inner cavity installed on the outer wall of the output pipe of the valve body 6 and extending to the output port 9. The output pipe 2 is connected to the compressor through a pipe, and the compressor is connected to the input end of the heat exchange pipe in the water tank through a pipe. The valve body 6 is connected to the output end of the heat exchange pipe in the water tank, and the output end of the output port 9 is connected to the input end of the solar collector 1 through a pipe. The input pipe and the output pipe of the valve body 6 are distributed vertically.

[0023] In this embodiment, first, when the device heats the water in the water tank by collecting heat, the compressor is started. At this time, the refrigerant in the S-shaped heat collecting tube is heated by sunlight and then enters the heat exchange tube through the compressor. The heat exchange tube is distributed in an "S" shape in the water tank. At this time, the water in the water tank exchanges heat with the high-temperature and high-pressure refrigerant. After the heat exchange, the temperature of the refrigerant decreases, while the temperature of the water in the water tank increases. The refrigerant is discharged from the heat exchange tube and, after throttling by the expansion valve mechanism, the refrigerant is converted to a low-temperature and low-pressure state again, flows back to the S-shaped heat collecting tube, and is heated by sunlight again before being discharged from the output pipe 2.

[0024] In the above process, the temperature sensing package 3 senses the temperature of the refrigerant discharged from the output pipe 2. When the temperature of the discharged refrigerant is too high, the same medium refrigerant located in the temperature sensing package 3 expands and applies pressure to the expansion valve mechanism through the capillary copper tube 4, thereby adjusting the throttling amount of the expansion valve mechanism to avoid the refrigerant temperature being too high or too low during the circulation process, which may cause malfunctions.

[0025] Please refer to Figure 2 and Figure 3 The adjustable valve seat unit includes a connecting seat 5 integrally formed on the top of the output pipe of the valve body 6. The connecting seat 5 is a hollow structure, and the top port of the connecting seat 5 is connected to one end of the capillary copper tube 4. A diaphragm 7 is installed on the inner wall of the connecting seat 5. A synchronous shaft 17 is provided at the bottom of the diaphragm 7. The outer wall of the synchronous shaft 17 is slidably connected to a rotating shaft 10. The rotating shaft 10 is rotatably connected to the inside of the output pipe of the valve body 6. The outer wall of the synchronous shaft 17 is fixedly connected to a ball valve 11 for adjusting the size of the inlet of the output port 9. The adjustable valve seat unit includes a limiting slide groove 19 integrally formed on the outer periphery of the synchronous shaft 17. The inner wall of the rotating shaft 10 is provided with a limiting slider 18 for the limiting slide groove 19 to slide up and down.

[0026] In this embodiment, when the refrigerant of the same medium in the temperature-sensing package 3 expands due to heat, the refrigerant applies an extrusion force to the top of the diaphragm 7 along the capillary copper tube 4. At this time, the diaphragm 7 deforms downward and squeezes the top of the synchronous shaft 17. The squeezed synchronous shaft 17 pushes the ball valve 11 downward. At this time, the inlet opening of the output port 9 is enlarged, which facilitates the refrigerant to pass through the valve body 6 faster. Therefore, a larger amount of refrigerant flows back into the S-shaped heat collecting pipe at the same time, avoiding the excessive pressure load on the inner wall of the S-shaped heat collecting pipe caused by excessive expansion of the refrigerant, which may cause cracking and leakage of the S-shaped heat collecting pipe.

[0027] When the refrigerant discharge temperature in the output pipe 2 drops, the same medium refrigerant in the temperature-sensing package 3 contracts simultaneously after heat exchange, thereby reducing the pressure on the diaphragm 7. At this time, the ball valve 11 is driven by the synchronous shaft 17 to reset upward, so that the opening of the inlet part of the output port 9 is reduced, thereby reducing the amount of refrigerant passing through at the same time, and avoiding the problem of reduced heat exchange efficiency with solar energy due to excessive movement of the refrigerant.

[0028] Please refer to Figure 2 、 Figure 3 and Figure 4The adjustment unit includes a hexagonal plate 16 fixedly connected to the outer wall of the rotating shaft 10 and extending to the outside of the valve body 6, and a hexagonal head integrally formed at the bottom end of the synchronous shaft 17. The outer periphery of the synchronous shaft 17 and the hexagonal head at its bottom are movably connected with a sleeve 12. A spring 13 is provided between the bottom end of the inner wall of the sleeve 12 and the hexagonal head. The bottom end of the sleeve 12 is fixedly connected to an adjustment seat 14, which is threadedly connected to the inner wall of the output port 9. A hollow portion 15 is provided inside the adjustment seat 14.

[0029] In this embodiment: during the long-term use of the spring 13, a certain elastic fatigue occurs. At this time, the spring 13 is easily over-compressed or incompletely reset to the opposite direction under the same pressure. At this time, a wrench can be used to dock with the hexagonal plate 16, and the hexagonal plate 16 can be driven to rotate by the handle. At this time, the hexagonal plate 16 can drive the rotating shaft 10 to rotate, and the rotating rotating shaft 10 can drive the synchronous shaft 17 to rotate synchronously. The rotating synchronous shaft 17 drives the sleeve 12 to rotate through the hexagonal head, and the sleeve 12 can drive the adjusting seat 14 to rotate. Under the threaded guide, the adjusting seat 14 moves up and down while rotating, and the adjusting seat 14 that moves up and down drives the sleeve 12 to move up and down. At this time, the spring 13 is compressed, which can avoid the problem of inaccurate adjustment caused by elastic fatigue of the spring 13.

[0030] Please refer to Figure 3 The top of the synchronization shaft 17 contacts but is not connected to the bottom end of the diaphragm 7, and the two ends of the spring 13 contact but are not connected to the hexagonal head and the inner wall of the sleeve 12.

[0031] In this embodiment, the synchronous shaft 17 is prevented from affecting the diaphragm 7 while rotating.

[0032] Please refer to Figure 2 The outer wall of the connecting seat 5 and the outer wall of the inlet pipe of the valve body 6 are fixedly connected by a fixing rod.

[0033] In this embodiment, it is possible to avoid the connection base 5 being free of stress.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency solar heat pump water heater device, comprising a solar collector (1), wherein an S-shaped heat collecting tube is installed inside the solar collector (1), characterized in that: The output end of the solar thermal collector (1) is equipped with an output pipe (2), the outer wall of the output pipe (2) is fixedly equipped with a temperature-sensing package (3), the output end of the temperature-sensing package (3) is connected to a capillary copper tube (4), and the capillary copper tube (4) is connected to an expansion valve mechanism; The expansion valve mechanism includes a valve body unit, an adjustable valve seat unit and an adjustment unit; The valve body unit comprises a valve body (6), an input port (8) is provided inside the input pipe of the valve body (6), an output port (9) is provided on the output pipe of the valve body (6), the adjustable valve seat unit is located above the output pipe of the valve body (6) and extends through the inner cavity of the output port (9), and the regulating unit comprises an inner cavity installed on the outer wall of the output pipe of the valve body (6) and extending to the output port (9).

2. A high-efficiency solar heat pump water heater device according to claim 1, characterized in that: The output pipe (2) is connected to the compressor via a pipe, the compressor is connected to the input end of the heat exchange pipe in the water tank via a pipe, the valve body (6) is connected to the output end of the heat exchange pipe in the water tank, the output end of the output port (9) is connected to the input end of the solar collector (1) via a pipe, and the input pipe and the output pipe of the valve body (6) are vertically distributed.

3. A high-efficiency solar heat pump water heater device according to claim 2, characterized in that: The adjustable valve seat unit includes a connecting seat (5) integrally formed on the top of the output pipe of the valve body (6), the connecting seat (5) is a hollow structure, and the top port of the connecting seat (5) is connected to one end of the capillary copper tube (4), the inner wall of the connecting seat (5) is installed with a diaphragm (7), the bottom of the diaphragm (7) is provided with a synchronous shaft (17), the outer wall of the synchronous shaft (17) is slidably connected to a rotating shaft (10), the rotating shaft (10) is rotatably connected to the inside of the output pipe of the valve body (6), and the outer wall of the synchronous shaft (17) is fixedly connected to a ball valve (11) for adjusting the size of the input port of the output port (9).

4. A high-efficiency solar heat pump water heater device according to claim 3, characterized in that: The adjustable valve seat unit includes a limiting sliding groove (19) integrally formed on the outer periphery of the synchronous shaft (17), and the inner wall of the rotating shaft (10) is provided with a limiting sliding block (18) for the limiting sliding groove (19) to slide up and down.

5. A high-efficiency solar heat pump water heater device according to claim 3, characterized in that: The adjustment unit comprises a hexagonal plate (16) fixedly connected to the outer wall of the rotating shaft (10) and extending to the outside of the valve body (6), and a hexagonal head integrally formed at the bottom end of the synchronous shaft (17); the outer periphery of the synchronous shaft (17) and the hexagonal head at its bottom are movably connected with a sleeve (12) in an upper and lower manner; a spring (13) is provided between the bottom end of the inner wall of the sleeve (12) and the hexagonal head; the bottom end of the sleeve (12) is fixedly connected to an adjustment seat (14); the adjustment seat (14) is threadedly connected to the inner wall of the output port (9); and a hollow portion (15) is provided inside the adjustment seat (14).

6. A high-efficiency solar heat pump water heater device according to claim 5, characterized in that: The top of the synchronization shaft (17) contacts but is not connected to the bottom end of the diaphragm (7), and the two ends of the spring (13) contact but are not connected to the hexagonal head and the inner wall of the sleeve (12).

7. A high-efficiency solar heat pump water heater device according to claim 3, characterized in that: The outer wall of the connecting seat (5) and the outer wall of the inlet pipe of the valve body (6) are fixedly connected via a fixing rod.

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