Anti-fouling air source heat pump water circulation system

Abstract

The utility model relates to air source heat pump technical field especially relates to a kind of anti-fouling air source heat pump water circulation system, including air source heat pump, the air source heat pump is equipped with controller, water bucket is installed in the air source heat pump, heat exchange coil is provided in the water bucket, the water bucket bottom is provided with drain, motor is installed in the air source heat pump, the output shaft of the motor is connected with first gear, first gear ring is rotatably connected in the water bucket, the first gear is engaged with the first gear ring, the first gear ring inner ring is connected with mounting plate, the mounting plate inner ring is connected with fixed plate, the fixed plate inner sliding connection has cleaning plate, the cleaning plate is attached with the heat exchange coil outer ring. By the attachment sliding of flexible wear-resistant material's cleaning plate and heat exchange coil spiral thread, form non-destructive cleaning cooperation, avoid the dirt and debris push and remain caused by mechanical brushing, improve cleaning stability and coil service life.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, and in particular to an anti-scaling air source heat pump water circulation system. Background Technology

[0002] An air source heat pump is a highly efficient and energy-saving heating device that absorbs heat from the ambient air, transfers the heat to water in a tank after the compressor performs work, and thus prepares and stores hot water. This technology is widely used in both residential and industrial sectors due to its advantages such as environmental friendliness and low operating costs. To meet continuous heating demands, air source heat pumps are typically used in conjunction with hot water storage tanks. The tank contains heat exchange coils as the core heat exchange component, with heat conduction achieved through direct contact between the outer wall of the coils and the water. However, during long-term operation, minerals such as calcium and magnesium in the water precipitate out upon heating, easily forming a scale layer on the surface of the heat exchange coils. This leads to increased thermal resistance and a significant reduction in heat exchange efficiency, becoming a key issue restricting system performance.

[0003] To address the scaling problem in heat exchange coils, an air-source heat pump with descaling function, disclosed in announcement number CN210718207U, incorporates a rotatable cleaning brush assembly within the water tank. Driven by a motor, the cleaning brush moves axially and circumferentially along the heat exchange coil surface, mechanically scrubbing it. This device removes scale through physical contact friction between the brush bristles and the coil surface, and the circumferential movement of the brush ensures thorough cleaning coverage, theoretically delaying the reduction in thermal efficiency caused by scale buildup.

[0004] However, significant drawbacks still exist in practical applications. During the brushing process, scale debris is easily pushed into the gaps between the bristles, leading to the accumulation of dirt residue. This necessitates frequent brush replacement or cleaning, increasing maintenance costs. Secondly, the brush material is prone to shedding and breakage under long-term high-intensity friction. The detached bristles may get stuck in the tiny gaps of the heat exchange coil, creating a risk of secondary blockage. In addition, mechanical brushing causes some wear on the coil surface, which may accelerate metal fatigue and shorten the equipment's service life. Utility Model Content

[0005] To overcome the drawbacks of dirt residue, this invention provides an anti-scaling air-source heat pump water circulation system, aiming to solve the aforementioned shortcomings.

[0006] An anti-scaling air source heat pump water circulation system includes an air source heat pump, a controller installed in the air source heat pump, a water tank installed inside the air source heat pump, a heat exchange coil installed inside the water tank, a drain outlet at the bottom of the water tank, a motor installed inside the air source heat pump, a first gear connected to the output shaft of the motor, a first gear ring rotatably connected inside the water tank, the first gear meshing with the first gear ring, a mounting plate connected to the inner ring of the first gear ring, a fixing plate connected to the inner ring of the mounting plate, a cleaning plate slidably connected inside the fixing plate, and the cleaning plate fitting against the outer ring of the heat exchange coil.

[0007] Furthermore, it also includes a second gear ring, a second gear, and a stirring plate. The stirring plate is rotatably connected to one end of the fixed plate facing the heat exchange coil. The stirring plate is located on the left and right sides of the cleaning plate. The top of the stirring plate is connected to the second gear. The top of the water tank is connected to the second gear ring. The second gear ring meshes with the second gear. The number of teeth on the second gear ring is much greater than the number of teeth on the second gear.

[0008] Furthermore, the mounting plate has several through holes.

[0009] Furthermore, a scraper is connected inside the water bucket, and the scraper is slidably connected to the mounting plate.

[0010] Furthermore, sealing gaskets are connected to both the top and bottom surfaces of the connection between the first gear ring and the mounting plate, and the sealing gaskets are interference-fitted with the water bucket.

[0011] Furthermore, the bottom of the bucket is provided with a guide ring that slopes inward.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The flexible and wear-resistant cleaning plate slides smoothly against the spiral pattern of the heat exchange coil, forming a non-destructive cleaning process. This avoids the residue of dirt and debris caused by mechanical brushing, thus improving cleaning stability and extending the service life of the coil.

[0014] 2. Through the high transmission ratio design of the second gear ring and the second gear, the agitator plate rotates at high speed to clean the areas on both sides of the cleaning plate, enhance the loosening and suspension effect of scale, reduce residue, and ultimately improve the scale removal efficiency. 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 cross-sectional view of the installation structure of the heat exchange coil and motor of this utility model.

[0017] Figure 3This is a cross-sectional view showing the connection relationship between the mounting plate and the fixing plate of this utility model.

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the second gear ring and the second gear of this utility model.

[0019] Reference numerals: 1_Air source heat pump, 2_Controller, 3_Water tank, 4_Heat exchange coil, 5_Drain outlet, 6_Motor, 7_First gear, 8_First gear ring, 9_Mounting plate, 10_Fixing plate, 11_Cleaning plate, 12_Second gear ring, 13_Second gear, 14_Agitator plate, 15_Through hole, 16_Scraper, 17_Sealing gasket, 18_Guide ring. Detailed Implementation

[0020] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0021] Example: A scale-resistant air-source heat pump water circulation system, such as Figures 1-4 As shown, the system includes an air source heat pump 1, a controller 2, a water tank 3, a heat exchange coil 4, a motor 6, a first gear 7, a first gear ring 8, a mounting plate 9, a fixing plate 10, and a cleaning plate 11. The air source heat pump 1 is equipped with the controller 2. The water tank 3 is installed inside the air source heat pump 1. The heat exchange coil 4 is installed inside the water tank 3. A drain outlet 5 is provided at the bottom of the water tank 3. The motor 6 is installed inside the air source heat pump 1. The output shaft of the motor 6 is connected to the first gear 7. The first gear ring 8 is rotatably connected inside the water tank 3. The first gear 7 meshes with the first gear ring 8. The mounting plate 9 is connected to the inner ring of the first gear ring 8. The fixing plate 10 is connected to the inner ring of the mounting plate 9. The cleaning plate 11 is slidably connected inside the fixing plate 10. The cleaning plate 11 is in contact with the outer ring of the heat exchange coil 4. The cleaning plate 11 is made of a flexible and wear-resistant material. The motor 6 drives the first gear 7 to reciprocate, which drives the mounting plate 9 to rotate through the first gear ring 8, thereby causing the fixing plate 10 to move in tandem, ultimately achieving short-distance sliding of the cleaning plate 11 within the fixing plate 10.

[0022] like Figure 2 and Figure 4As shown, it also includes a second gear ring 12, a second gear 13, and a stirring plate 14. The stirring plate 14 is rotatably connected to one end of the fixed plate 10 facing the heat exchange coil 4. The stirring plate 14 is located on the left and right sides of the cleaning plate 11. The second gear 13 is connected to the top of the stirring plate 14. The second gear ring 12 is connected to the top of the water tank 3. The second gear ring 12 meshes with the second gear 13. The number of teeth of the second gear ring 12 is much greater than the number of teeth of the second gear 13. The ratio of the number of teeth of the second gear ring 12 to the number of teeth of the second gear 13 is N:1 (N≥10). The stirring plate 14 rotates at high speed through the large transmission ratio.

[0023] like Figure 3 As shown, the mounting plate 9 has several through holes 15. The through holes 15 reduce the rotational resistance of the mounting plate 9 and allow water to flow through evenly.

[0024] like Figure 2 As shown, it also includes a scraper 16. The scraper 16 is connected inside the water bucket 3. The scraper 16 is slidably connected to the mounting plate 9. The scraper 16 is made of elastic material and can be bent and inserted into the through hole 15 of the mounting plate 9.

[0025] like Figure 2 As shown, it also includes a sealing gasket 17. The top and bottom surfaces of the connection between the first toothed ring 8 and the mounting plate 9 are both connected to the sealing gasket 17. The sealing gasket 17 forms an interference fit with the inner wall of the water bucket 3 through extrusion deformation to achieve dynamic sealing. The sealing gasket 17 is made of highly elastic rubber material, and achieves dynamic sealing between the water bucket 3 and the first toothed ring 8 through extrusion deformation.

[0026] like Figure 2 As shown, it also includes a guide ring 18. The bottom of the water tank 3 is provided with a guide ring 18 that is inclined towards the middle. The inclined surface of the guide ring 18 guides the water flow in a spiral centripetal flow, reducing the deposition of scale at the bottom.

[0027] After the air source heat pump 1 has been working for a period of time, scale gradually accumulates in the water tank 3, especially on the surface of the heat exchange coil 4. The controller 2 sets a periodic cleaning time. After the interval, the controller 2 starts the motor 6, which drives the first gear 7 to rotate. The first gear 7 drives the mounting plate 9 to rotate via the first gear ring 8. The motor 6 drives the first gear 7 to rotate reciprocally, meaning the first gear ring 8 rotates one full revolution and then reverses direction. The mounting plate 9 drives the cleaning plate 11 to rotate reciprocally via the fixing plate 10. After the cleaning plate 11 is in contact with the surface of the heat exchange coil 4, it slides. Because the texture on the surface of the heat exchange coil 4 is spiral, the cleaning plate 11 slides up and down along the outer texture of the heat exchange coil 4. When the mounting plate 9 performs a single reciprocating rotation, the guiding and limiting effect of the fixing plate 10 restricts the sliding range of the cleaning plate 11 to a short distance within the fixing plate 10. The cleaning process is stabilized by rotating the agitator plate 14 along with the fixed plate 10, thereby ensuring the stability of the cleaning action and achieving stable cleaning of the surface of the heat exchange coil 4. When the agitator plate 14 rotates with the fixed plate 10, it drives the second gear 13 to move. The second gear 13 meshes with the second gear ring 12. Since the number of teeth of the second gear 13 is much smaller than that of the second gear ring 12, the second gear 13 needs to rotate a lot more times to mesh with the second gear ring 12. The agitator plate 14 generates a vortex effect through high-speed rotation, which performs secondary cleaning on the surface area of ​​the heat exchange coil 4 on both sides of the cleaning plate 11. At the same time, it agitates the scale on the surface of the heat exchange coil 4. At this time, the drain port 5 is opened, and the water flows out from the drain port 5, completing the cleaning of the scale. The inclined surface of the guide ring 18 can guide the water flow to the middle and also reduce the deposition of scale. After the first gear ring 8 reciprocates for a certain number of times, the controller 2 turns off the motor 6, stops the cleaning process, and closes the drain port 5.

[0028] Water can flow smoothly through the through holes 15 provided in the mounting plate 9. When the mounting plate 9 rotates, the scraper 16 can continuously scrape the surface of the mounting plate 9. The scraper 16 can bend and continuously bend and deform as the mounting plate 9 rotates, dynamically adjusting the position of insertion into different through holes 15 to achieve continuous contact and scraping with the surface of the mounting plate 9. Thus, it continuously contacts the surface of the mounting plate 9 to achieve cleaning. The sealing gasket 17 ensures the airtightness of the water bucket 3.

[0029] Please check the text above for logical errors, grammatical inconsistencies, typos, and unclear component references. Please point out the logical errors and grammatical inconsistencies, and provide suggestions for improvement, along with the revised version.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A scale-resistant air-source heat pump water circulation system, characterized in that, The device includes an air source heat pump (1), which is equipped with a controller (2). A water tank (3) is installed inside the air source heat pump (1). A heat exchange coil (4) is installed inside the water tank (3). A drain outlet (5) is provided at the bottom of the water tank (3). A motor (6) is installed inside the air source heat pump (1). The output shaft of the motor (6) is connected to a first gear (7). A first gear ring (8) is rotatably connected inside the water tank (3). The first gear (7) meshes with the first gear ring (8). An mounting plate (9) is connected to the inner ring of the first gear ring (8). A fixing plate (10) is connected to the inner ring of the mounting plate (9). A cleaning plate (11) is slidably connected inside the fixing plate (10). The cleaning plate (11) is in contact with the outer ring of the heat exchange coil (4).

2. The anti-scaling air-source heat pump water circulation system according to claim 1, characterized in that, It also includes a second gear ring (12), a second gear (13) and a stirring plate (14). The stirring plate (14) is rotatably connected to one end of the fixed plate (10) facing the heat exchange coil (4). The stirring plate (14) is located on the left and right sides of the cleaning plate (11). The second gear (13) is connected to the top of the stirring plate (14). The second gear ring (12) is connected to the top of the water tank (3). The second gear ring (12) meshes with the second gear (13). The number of teeth of the second gear ring (12) is much greater than the number of teeth of the second gear (13).

3. The anti-scaling air-source heat pump water circulation system according to claim 2, characterized in that, The mounting plate (9) has several through holes (15).

4. The anti-scaling air-source heat pump water circulation system according to claim 3, characterized in that, A scraper (16) is connected inside the water bucket (3), and the scraper (16) is slidably connected to the mounting plate (9).

5. The anti-scaling air-source heat pump water circulation system according to claim 4, characterized in that, The first toothed ring (8) is connected to the mounting plate (9) with sealing gaskets (17) on both the top and bottom sides. The sealing gaskets (17) are interference fit with the water bucket (3).

6. A scale-resistant air-source heat pump water circulation system according to claim 5, characterized in that, The bottom of the bucket (3) is provided with a guide ring (18) that slopes toward the center.

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