An easy-to-maintain air source heat pump water heater

Abstract

This utility model relates to the technical field of air source heat pump water heaters, and in particular to an easy-to-maintain air source heat pump water heater. It includes a water heater body, which comprises a shell. The surface of a water outlet pipe is fixedly connected to the inner wall of the shell. A through hole is formed on the surface of the water outlet pipe. A movable pipe is movably connected to the surface of the water outlet pipe. A connecting ring is fixedly connected to the surface of the movable pipe. A fixed pipe is fixedly connected to the surface of the water outlet pipe. A threaded rod is fixedly connected to the surface of the fixed pipe. A nut is installed on the surface of the connecting ring. A cleaning mechanism is installed on the inner wall of the shell. The cleaning mechanism includes a pipeline pump, the surface of which is fixedly connected to the inner wall of the shell. A seventh connecting pipe is fixedly connected to the output end of the pipeline pump, and an eighth connecting pipe is fixedly connected to the input end of the pipeline pump. This utility model improves the ease of cleaning air source heat pump water heaters.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump water heater technology, and in particular to an air source heat pump water heater that is easy to maintain. Background Technology

[0002] Air source heat pump water heaters transfer and exchange heat through the circulation of a working fluid within internal pipes. Over time, scale and impurities may accumulate on the inner walls of these pipes, affecting heat exchange efficiency. Cleaning the internal pipes removes this buildup, allowing the working fluid to absorb and release heat more effectively, thus improving the water heater's heating performance, ensuring it operates at higher efficiency, saving energy, and shortening heating time.

[0003] In the use of common air source heat pump water heaters, scale and impurities may accumulate on the inner wall of the pipes over time. To clean the scale and impurities on the inner wall of the pipes, it is necessary to disconnect the connector at the outlet pipe, remove the internal filter, and then pump in cleaning solution from the inlet pipe. This is quite complicated and inconvenient to clean. Summary of the Invention

[0004] In view of this, the present invention provides an air source heat pump water heater that is easy to maintain. The main technical problem to be solved is that it is inconvenient to clean impurities and scale inside the pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an easy-to-maintain air source heat pump water heater, comprising a water heater body, the water heater body including an outer shell, an auxiliary mechanism installed on the left side surface of the outer shell, the auxiliary mechanism including a water outlet pipe, the surface of the water outlet pipe being fixedly connected to the inner wall of the outer shell, a through hole being opened on the surface of the water outlet pipe, a movable pipe being movably connected to the surface of the water outlet pipe, a connecting ring being fixedly connected to the surface of the movable pipe, a fixed pipe being fixedly connected to the surface of the water outlet pipe, a threaded rod being fixedly connected to the surface of the fixed pipe, the end of the threaded rod extending through the connecting ring to the left side of the connecting ring, a nut being installed on the surface of the connecting ring, a cleaning mechanism being installed on the inner wall of the outer shell, the cleaning mechanism including a pipeline pump, the surface of the pipeline pump being fixedly connected to the inner wall of the outer shell, a seventh connecting pipe being fixedly connected to the output end of the pipeline pump, and an eighth connecting pipe being fixedly connected to the input end of the pipeline pump.

[0006] By adopting the above technical solution, there is no need to disassemble. Simply move the through hole and connect the seventh connecting pipe to the outlet pipe, send the cleaning liquid to the input end of the pipeline pump, and send the cleaning liquid into the heat exchange mechanism through the pipeline pump. Finally, it flows out from the inlet pipe, which can clean the inside of the pipeline.

[0007] As a further description of the above technical solution:

[0008] A filter screen is fixedly connected to the inner wall of the movable tube, a sealing ring is fixedly connected to the inner wall of the fixed tube, the nut is located on the left side of the connecting ring, and the through hole is located on the left side of the fixed tube.

[0009] By adopting the above technical solution, when the nut is turned, the moving tube moves to the right, so that the right side surface of the moving tube fits into the left side surface of the sealing ring, thus ensuring that water will not leak from the connection between the moving tube and the outlet tube during operation.

[0010] As a further description of the above technical solution:

[0011] A heat exchange mechanism is installed on the inner wall of the outer shell. The heat exchange mechanism includes a water tank. The main body of the water tank is fixedly connected to the inner wall of the outer shell. A first connecting pipe is fixedly connected to the right side surface of the water tank. A heat exchanger is fixedly connected to the end of the first connecting pipe. A second connecting pipe is fixedly connected to the right side surface of the heat exchanger. An expansion valve is fixedly connected to the end of the second connecting pipe.

[0012] By adopting the above technical solution, cold water enters the heat exchanger from the water tank for heat exchange. The expansion valve controls the valve flow by changing the superheat at the end of the evaporator, preventing insufficient utilization of the evaporator area and knocking.

[0013] As a further description of the above technical solution:

[0014] An evaporation mechanism is installed on the right side surface of the expansion valve. The evaporation mechanism includes a third connecting pipe. The left side surface of the third connecting pipe is fixedly connected to the right side surface of the expansion valve. An evaporator is fixedly connected to the end of the third connecting pipe. The surface of the evaporator is fixedly connected to the inner wall of the outer shell. A fourth connecting pipe is fixedly connected to the output end of the evaporator.

[0015] By adopting the above technical solution, low-temperature and low-pressure refrigerant liquid enters the interior of the evaporator. The evaporator absorbs heat from the outside air to heat the cold water inside, causing it to evaporate into low-temperature and low-pressure refrigerant gas.

[0016] As a further description of the above technical solution:

[0017] A heating mechanism is installed at the end of the fourth connecting pipe. The heating mechanism includes a compressor. The right side surface of the compressor is fixedly connected to the end of the fourth connecting pipe. The surface of the compressor is fixedly connected to the inner wall of the outer casing. The compressor is located on the left side of the evaporator.

[0018] By adopting the above technical solution, the refrigerant, which has been preliminarily heated inside the evaporator, is sent into the compressor through the fourth connecting pipe. After being compressed by the compressor, the pressure and temperature of the refrigerant increase, turning it into a high-temperature and high-pressure refrigerant gas.

[0019] As a further description of the above technical solution:

[0020] The compressor output end is fixedly connected to a fifth connecting pipe, the end of which is fixedly connected to the right side surface of the heat exchanger. The left side surface of the heat exchanger is fixedly connected to a sixth connecting pipe, the end of which extends into the interior of the water tank.

[0021] By adopting the above technical solution, high-temperature and high-pressure refrigerant gas enters the heat exchanger. In the heat exchanger, the refrigerant exchanges heat with water, transferring heat to the cold water and raising the water temperature, while the refrigerant itself cools and condenses into high-temperature and high-pressure refrigerant liquid.

[0022] As a further description of the above technical solution:

[0023] The right side surface of the outlet pipe is fixedly connected to the left side surface of the water tank, and the left side surface of the water tank is fixedly connected to the inlet pipe, which is located below the outlet pipe.

[0024] By adopting the above technical solution, due to the principle of thermosiphon, that is, the thermal expansion and contraction of fluids in a closed or open system, hot water rises and cold water sinks, hot water can be sent out through the outlet pipe and cold water can be introduced into the inlet pipe inside the water tank.

[0025] As a further description of the above technical solution:

[0026] A bracket is fixedly connected to the lower surface of the outer shell, a cylinder is fixedly connected to the right side surface of the bracket, a roller is fixedly connected to the telescopic end of the cylinder, a connecting shell is fixedly connected to the upper surface of the roller, and the inner wall of the connecting shell is in contact with the surface of the outer shell.

[0027] By adopting the above technical solution, the starting cylinder drives the connecting shell to move to the right, and the evaporator located inside the shell can be exposed to sunlight, absorb more heat, and increase the thermal energy of the device. When there is no sunlight, the cylinder is retracted, and the shell and connecting shell can prevent the heat absorbed by the evaporator from being lost.

[0028] By employing the above technical solution, this utility model of an easy-to-maintain air source heat pump water heater has at least the following beneficial effects:

[0029] 1. Compared with existing technologies, this easy-to-maintain air source heat pump water heater, through a through-hole, a pipeline pump, and a movable pipe, allows for easy cleaning of the internal pipes during use. By turning the nut, the movable pipe can be moved to the left on the outlet pipe, exposing the through-hole. The seventh connecting pipe, fixed at the output end of the pipeline pump, can then be inserted into the through-hole. Closing the valve on the movable pipe allows cleaning fluid to be introduced into the input end of the pipeline pump. The pipeline pump then sends the cleaning fluid into the heat exchange mechanism, finally flowing out from the inlet pipe. A portion of the cleaning fluid flowing in through the through-hole also flows to the left, contacting the surface of the filter screen. This device cleans the filtered impurities accumulated on the right side of the filter screen. Compared to conventional air source heat pump water heaters, where scale and impurities may accumulate on the inner walls of the pipes over time, cleaning the scale and impurities requires disassembling the connector at the outlet pipe, removing the internal filter screen, and pumping in cleaning fluid from the inlet pipe – a complex and inconvenient process. This device eliminates the need for disassembly; simply move the through hole and connect the seventh connecting pipe to the outlet pipe to clean the inside of the pipes, significantly improving the ease of cleaning air source heat pump water heaters.

[0030] 2. Compared with existing technologies, this easy-to-maintain air source heat pump water heater, through a cylinder, rollers, and connecting shell, allows for easy operation. When there is sunlight outdoors and it shines on the air source heat pump water heater, the cylinder is activated, causing it to extend. The rollers fixed at the extension end of the cylinder move to the right, driving the connecting shell to move to the right. This allows the evaporator inside the outer shell to be exposed to sunlight, absorbing more heat and increasing the device's thermal energy. When there is no sunlight, the cylinder retracts, and the outer shell and connecting shell prevent the heat absorbed by the evaporator from dissipating, improving the device's practicality. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an air source heat pump water heater that is easy to maintain, as proposed in this utility model.

[0032] Figure 2 A cross-sectional view of an air source heat pump water heater that is easy to maintain, as proposed in this utility model;

[0033] Figure 3 This utility model proposes an easy-to-maintain air source heat pump water heater. Figure 2 Enlarged view of the structure at point A;

[0034] Figure 4 This is a schematic diagram of the internal structure of an air source heat pump water heater that is easy to maintain, as proposed in this utility model.

[0035] Legend:

[0036] 1. Water heater body; 101. Outer shell; 102. Bracket; 103. Connecting shell; 104. Roller; 105. Cylinder; 2. Heat exchange mechanism; 201. Water tank; 202. First connecting pipe; 203. Heat exchanger; 204. Second connecting pipe; 205. Expansion valve; 3. Evaporation mechanism; 301. Third connecting pipe; 302. Evaporator; 303. Fourth connecting pipe; 4. Heating mechanism; 401. Compressor; 402. Fifth connecting pipe; 403. Sixth connecting pipe; 5. Auxiliary mechanism; 501. Outlet pipe; 502. Through hole; 503. Moving pipe; 504. Filter screen; 505. Connecting ring; 506. Threaded rod; 507. Nut; 508. Fixing pipe; 509. Sealing ring; 510. Inlet pipe; 6. Cleaning mechanism; 601. Seventh connecting pipe; 602. Pipeline pump; 603. Eighth connecting pipe. Detailed Implementation

[0037] Reference Figure 1-4 This utility model provides an easy-to-maintain air source heat pump water heater: It includes a water heater body 1, which includes a shell 101. An auxiliary mechanism 5 is installed on the left side surface of the shell 101. The auxiliary mechanism 5 includes a water outlet pipe 501, the surface of which is fixedly connected to the inner wall of the shell 101. A through hole 502 is formed on the surface of the water outlet pipe 501. A movable pipe 503 is movably connected to the surface of the water outlet pipe 501. A connecting ring 505 is fixedly connected to the surface of the movable pipe 503. A fixed pipe 508 is fixedly connected to the surface of the water outlet pipe 501. A threaded rod 506 is fixedly connected to the surface of the fixed pipe 508. The end of the threaded rod 506 extends through the connecting ring 505 to the connecting... On the left side of ring 505, a nut 507 is installed on the surface of connecting ring 505. A cleaning mechanism 6 is installed on the inner wall of housing 101. The cleaning mechanism 6 includes a pipeline pump 602. The surface of pipeline pump 602 is fixedly connected to the inner wall of housing 101. The output end of pipeline pump 602 is fixedly connected to a seventh connecting pipe 601, and the input end of pipeline pump 602 is fixedly connected to an eighth connecting pipe 603. Without disassembly, simply move the through hole 502 and connect the seventh connecting pipe 601 to the outlet pipe 501 to send cleaning liquid to the input end of pipeline pump 602. The cleaning liquid is then sent into heat exchange mechanism 2 by pipeline pump 602 and finally flows out from inlet pipe 510, thus cleaning the inside of the pipeline.

[0038] A filter screen 504 is fixedly connected to the inner wall of the moving pipe 503, and a sealing ring 509 is fixedly connected to the inner wall of the fixed pipe 508. A nut 507 is located to the left of the connecting ring 505, and a through hole 502 is located to the left of the fixed pipe 508. When the nut 507 is turned, the moving pipe 503 is moved to the right, so that when the right side surface of the moving pipe 503 is in contact with the left side surface of the sealing ring 509, water will not leak from the connection between the moving pipe 503 and the outlet pipe 501 during operation. A heat exchange mechanism 2 is installed on the inner wall of the outer shell 101. The heat exchange mechanism 2 includes a water tank 201. The main body of the water tank 201 is fixedly connected to the inner wall of the outer shell 101. A first connecting pipe 202 is fixedly connected to the right side surface of the water tank 201, and the end of the first connecting pipe 202 is fixed. A heat exchanger 203 is connected, and a second connecting pipe 204 is fixedly connected to the right side surface of the heat exchanger 203. An expansion valve 205 is fixedly connected to the end of the second connecting pipe 204. An evaporation mechanism 3 is installed on the right side surface of the expansion valve 205. The evaporation mechanism 3 includes a third connecting pipe 301, the left side surface of which is fixedly connected to the right side surface of the expansion valve 205. An evaporator 302 is fixedly connected to the end of the third connecting pipe 301. The surface of the evaporator 302 is fixedly connected to the inner wall of the outer casing 101. A fourth connecting pipe 303 is fixedly connected to the output end of the evaporator 302. Low-temperature, low-pressure refrigerant liquid enters the interior of the evaporator 302. The evaporator 302 absorbs heat from the outside air to heat the internal cold water, making it... The refrigerant is evaporated into a low-temperature, low-pressure refrigerant gas. A heating mechanism 4 is installed at the end of the fourth connecting pipe 303. The heating mechanism 4 includes a compressor 401. The right side surface of the compressor 401 is fixedly connected to the end of the fourth connecting pipe 303. The surface of the compressor 401 is fixedly connected to the inner wall of the outer casing 101. The compressor 401 is located to the left of the evaporator 302. The refrigerant, which has been preliminarily heated inside the evaporator 302, is sent into the compressor 401 through the fourth connecting pipe 303. After being compressed by the compressor 401, the pressure and temperature of the refrigerant increase, becoming a high-temperature, high-pressure refrigerant gas. A fifth connecting pipe 402 is fixedly connected to the output end of the compressor 401. The end of the fifth connecting pipe 402 is fixedly connected to the right side surface of the heat exchanger 203. Next, a sixth connecting pipe 403 is fixedly connected to the left side surface of the heat exchanger 203. The end of the sixth connecting pipe 403 extends into the interior of the water tank 201. High-temperature and high-pressure refrigerant gas enters the heat exchanger 203. In the heat exchanger 203, the refrigerant exchanges heat with the water, transferring heat to the cold water and raising the water temperature. Meanwhile, the refrigerant itself cools and condenses into high-temperature and high-pressure refrigerant liquid. The right side surface of the outlet pipe 501 is fixedly connected to the left side surface of the water tank 201. An inlet pipe 510 is fixedly connected to the left side surface of the water tank 201. The inlet pipe 510 is located below the outlet pipe 501. Due to the principle of thermosiphon, that is, the thermal expansion and contraction of fluids in a closed or open system, hot air rises and cold air sinks, so inside the water tank 201...Hot water can be discharged through the outlet pipe 501, and cold water can also be introduced into the inlet pipe 510. A bracket 102 is fixedly connected to the lower surface of the outer casing 101, and a cylinder 105 is fixedly connected to the right side surface of the bracket 102. A roller 104 is fixedly connected to the telescopic end of the cylinder 105, and a connecting shell 103 is fixedly connected to the upper surface of the roller 104. The inner wall of the connecting shell 103 is in contact with the surface of the outer casing 101. Activating the cylinder 105 moves the connecting shell 103 to the right, allowing the evaporator 302 inside the outer casing 101 to be exposed to sunlight, absorbing more heat and increasing the device's thermal energy. When there is no sunlight, retracting the cylinder 105 prevents the heat absorbed by the evaporator 302 from dissipating through the outer casing 101 and the connecting shell 103.

[0039] Working principle: When cleaning the internal pipes of the air source heat pump water heater is required, turn the nut 507 to allow the moving pipe 503 to move to the left on the outlet pipe 501. At this time, the through hole 502 on the outlet pipe 501 is exposed, allowing the seventh connecting pipe 601, which is fixed at the output end of the pipeline pump 602, to be inserted into the through hole 502. Close the valve on the moving pipe 503 to send cleaning fluid into the input end of the pipeline pump 602. The pipeline pump 602 sends the cleaning fluid into the heat exchange mechanism 2 and finally out of the inlet pipe 510. A portion of the cleaning fluid flowing into the through hole 502 also flows to the left, interacting with the filter screen 504. The surface contacts the filter screen 504 to clean the filtered impurities accumulated on the right side. When there is sunlight outdoors and it can shine on the air source heat pump water heater, the cylinder 105 is activated, causing the cylinder 105 to extend. The roller 104 fixed at the extension end of the cylinder 105 moves to the right, driving the connecting shell 103 to move to the right. The evaporator 302 located inside the outer shell 101 can be exposed to sunlight, absorbing more heat and increasing the thermal energy of the device. When there is no sunlight, the cylinder 105 is retracted, and the outer shell 101 and the connecting shell 103 can prevent the heat absorbed by the evaporator 302 from being lost, improving the practicality of the device.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easy-to-maintain air source heat pump water heater, comprising a water heater body (1), characterized in that: The main body (1) of the water heater includes a shell (101). An auxiliary mechanism (5) is installed on the left side surface of the shell (101). The auxiliary mechanism (5) includes a water outlet pipe (501). The surface of the water outlet pipe (501) is fixedly connected to the inner wall of the shell (101). A through hole (502) is opened on the surface of the water outlet pipe (501). A movable pipe (503) is movably connected to the surface of the water outlet pipe (501). A connecting ring (505) is fixedly connected to the surface of the movable pipe (503). A fixed pipe (508) is fixedly connected to the surface of the water outlet pipe (501). A threaded rod (506) is fixedly connected to the surface. The end of the threaded rod (506) extends through the connecting ring (505) to the left side of the connecting ring (505). A nut (507) is installed on the surface of the connecting ring (505). A cleaning mechanism (6) is installed on the inner wall of the outer shell (101). The cleaning mechanism (6) includes a pipeline pump (602). The surface of the pipeline pump (602) is fixedly connected to the inner wall of the outer shell (101). A seventh connecting pipe (601) is fixedly connected to the output end of the pipeline pump (602). An eighth connecting pipe (603) is fixedly connected to the input end of the pipeline pump (602).

2. The easy-to-maintain air source heat pump water heater according to claim 1, characterized in that: A filter screen (504) is fixedly connected to the inner wall of the movable tube (503), a sealing ring (509) is fixedly connected to the inner wall of the fixed tube (508), the nut (507) is located to the left of the connecting ring (505), and the through hole (502) is located to the left of the fixed tube (508).

3. The easy-to-maintain air source heat pump water heater according to claim 1, characterized in that: A heat exchange mechanism (2) is installed on the inner wall of the outer shell (101). The heat exchange mechanism (2) includes a water tank (201). The main body of the water tank (201) is fixedly connected to the inner wall of the outer shell (101). A first connecting pipe (202) is fixedly connected to the right side surface of the water tank (201). A heat exchanger (203) is fixedly connected to the end of the first connecting pipe (202). A second connecting pipe (204) is fixedly connected to the right side surface of the heat exchanger (203). An expansion valve (205) is fixedly connected to the end of the second connecting pipe (204).

4. The easy-to-maintain air source heat pump water heater according to claim 3, characterized in that: An evaporation mechanism (3) is installed on the right side surface of the expansion valve (205). The evaporation mechanism (3) includes a third connecting pipe (301). The left side surface of the third connecting pipe (301) is fixedly connected to the right side surface of the expansion valve (205). An evaporator (302) is fixedly connected to the end of the third connecting pipe (301). The surface of the evaporator (302) is fixedly connected to the inner wall of the outer shell (101). A fourth connecting pipe (303) is fixedly connected to the output end of the evaporator (302).

5. The easy-to-maintain air source heat pump water heater according to claim 4, characterized in that: A heating mechanism (4) is installed at the end of the fourth connecting pipe (303). The heating mechanism (4) includes a compressor (401). The right side surface of the compressor (401) is fixedly connected to the end of the fourth connecting pipe (303). The surface of the compressor (401) is fixedly connected to the inner wall of the outer shell (101). The compressor (401) is located on the left side of the evaporator (302).

6. The easy-to-maintain air source heat pump water heater according to claim 5, characterized in that: The output end of the compressor (401) is fixedly connected to a fifth connecting pipe (402), the end of the fifth connecting pipe (402) is fixedly connected to the right side surface of the heat exchanger (203), and the left side surface of the heat exchanger (203) is fixedly connected to a sixth connecting pipe (403), the end of the sixth connecting pipe (403) extends into the interior of the water tank (201).

7. The easy-to-maintain air source heat pump water heater according to claim 1, characterized in that: The right side surface of the outlet pipe (501) is fixedly connected to the left side surface of the water tank (201), and the left side surface of the water tank (201) is fixedly connected to the inlet pipe (510), which is located below the outlet pipe (501).

8. The easy-to-maintain air source heat pump water heater according to claim 1, characterized in that: A bracket (102) is fixedly connected to the lower surface of the outer shell (101), a cylinder (105) is fixedly connected to the right side surface of the bracket (102), a roller (104) is fixedly connected to the telescopic end of the cylinder (105), a connecting shell (103) is fixedly connected to the upper surface of the roller (104), and the inner wall of the connecting shell (103) is in contact with the surface of the outer shell (101).

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