A high-efficiency energy-saving solar water heater

Abstract

The utility model discloses a kind of efficient energy-saving solar water heater, it is related to solar water heater technical field, specifically including support, heat collection pipe bottom support, heat collection pipe, solar water heater water tank and power assembly, the support shaft that is adapted with heat collection pipe is evenly provided on the heat collection pipe bottom support, the outer ring of the support shaft is provided with heat preservation cleaning assembly, the heat preservation cleaning assembly includes the heat preservation sleeve of the outer ring of support shaft, scraping ring and wiping ring.The efficient energy-saving solar water heater, impurity adhered to heat collection pipe surface is cleaned using heat preservation cleaning assembly, and after heat collection pipe cleaning is completed, heat preservation sleeve is in stretched state and realizes the wrapping of heat collection pipe, reduce the air flow velocity around heat collection pipe, by the way of slowing down the heat exchange efficiency of heat collection pipe and external environment, significantly slow down heat loss speed, to effectively reduce the heat loss of heat collection pipe, finally realize the significant improvement of solar water heater overall energy-saving effect.

Description

Technical Field

[0001] This utility model relates to the field of solar water heater technology, specifically a high-efficiency and energy-saving solar water heater. Background Technology

[0002] Solar water heaters, as a typical example of clean energy utilization, heat water by absorbing solar energy. In the current context of energy conservation and emission reduction, they have become a popular choice for hot water supply. Among them, the collector tube, as the core component of a solar water heater, undertakes the crucial task of converting solar energy into heat energy and heating water. To improve the heat collection efficiency, the surface of the collector is usually coated with a selective absorption coating with high absorptivity and low emissivity.

[0003] In practical use, due to long-term exposure to the outdoor environment, dust, fallen leaves, and other impurities easily adhere to the surface of the solar collector tubes. These deposits hinder the effective absorption of solar radiation, reduce the heat collection efficiency of the collector tubes, and thus affect the overall thermal energy conversion efficiency of the solar water heater. Simultaneously, in low-temperature environments, the heat dissipated by the high-temperature water inside the collector tubes is transferred through the tube walls to the cooler external environment. The flow of external air further accelerates the heat exchange between the tube surface and the surrounding environment, exacerbating heat loss and ultimately weakening the overall energy-saving performance of the solar water heater. Based on this, this application proposes a high-efficiency energy-saving solar water heater. Utility Model Content

[0004] This invention provides a high-efficiency and energy-saving solar water heater, which solves the problems mentioned in the background art, such as impurities adhering to the heat collection tube affecting the heat collection efficiency of the heat collection tube; heat loss from the heat collection tube; and the increased heat loss due to the flow of external air.

[0005] This utility model provides the following technical solution: a high-efficiency and energy-saving solar water heater, including a bracket, a collector tube base, a collector tube, a solar water heater tank, and a power component. The collector tube base is evenly provided with support shafts adapted to the collector tubes. An insulation and cleaning component is provided around the outer ring of the support shaft. The insulation and cleaning component includes an insulation sleeve, a scraping ring, and a wiping ring fitted around the outer ring of the support shaft. One end of the insulation sleeve is connected to the collector tube base, and the other end is connected to the scraping ring. The end of the scraping ring away from the insulation sleeve is connected to the wiping ring. Both the scraping ring and the wiping ring are movably connected to the collector tube. Adjacent insulation and cleaning components are connected by a connecting rod. A guide rod is movably connected to the middle of the connecting rod. The guide rod is parallel to the collector tube and is connected to both the collector tube base and the solar water heater tank.

[0006] Preferably, the connecting rod is connected to both the scraping ring and the wiping ring, and the wiping ring is provided with a sealing ring on the side near the solar water heater tank.

[0007] Preferably, the power assembly drives the connecting rod to move, and the power assembly includes a lowering structure, a protective box, an ascending structure, a water storage tank, and a water pump.

[0008] Preferably, the lowering structure includes a first spring, a protective sleeve, a second spring, and a third spring. The first spring is located inside the cavity of the protective sleeve. One end of both the first spring and the protective sleeve is connected to the inner side of the collector tube base, and the other end of both the first spring and the protective sleeve is connected to the side of the connecting rod away from the solar water heater tank.

[0009] Preferably, the lifting structure includes a first water storage box, a second water storage box, a pull rope and a pulley assembly that are movably connected to the inner cavity of the protective box. The first water storage box is connected to the protective box via a second spring, and the second water storage box is connected to the protective box via a third spring. The pulley assembly is located above the first and second water storage boxes and includes a first guide wheel, a pressing wheel, and a second guide wheel arranged in sequence. The first and second guide wheels are connected to the top of the protective box, and the pressing wheel is connected to the top of the second water storage box. The pull rope is wound around the bottom of the pressing wheel, one end of the pull rope is wound around the top of the first guide wheel and connected to the side of the connecting rod near the solar water heater tank, and the other end of the pull rope is wound around the top of the second guide wheel and connected to the top of the first water storage box.

[0010] Preferably, the inlet of the water pump is connected to the outlet of the first water storage box via a first inlet pipe, the inlet of the water pump is connected to the outlet of the second water storage box via a second inlet pipe, and the outlet of the water pump is connected to the inner cavity of the water storage tank; the water storage tank is located above the first and second water storage boxes, the bottom of the inner cavity of the water storage tank is connected to the inlet of the first water storage box via a first water injection pipe, and the bottom of the inner cavity of the water storage tank is connected to the inlet of the second water storage box via a second water injection pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This high-efficiency and energy-saving solar water heater uses an insulation cleaning component to clean impurities adhering to the surface of the collector tubes. After cleaning, the insulation sleeve is stretched and wraps around the collector tubes, reducing the airflow speed around them. By slowing down the heat exchange efficiency between the collector tubes and the external environment, the rate of heat loss is significantly reduced, thereby effectively reducing heat loss from the collector tubes and ultimately achieving a significant improvement in the overall energy-saving effect of the solar water heater.

[0012] 2. This high-efficiency and energy-saving solar water heater features a self-cleaning function for the collector tubes, improving their heat collection efficiency and significantly optimizing the overall heat conversion efficiency of the solar water heater. It also extends the service life of the collector tubes, reducing the frequency and workload of manual cleaning and lowering maintenance costs and difficulty. The upward movement of the connecting rod is achieved through a hydraulic drive, reducing the energy consumption of the power components and improving the energy efficiency of this application. Attached Figure Description

[0013] Figure 1 This is a front view of a high-efficiency and energy-saving solar water heater proposed in this utility model; Figure 2 The structure of this utility model Figure 1 Rear view illustration; Figure 3 The structure of this utility model Figure 2 Cross-sectional view; Figure 4 This is a schematic diagram showing the separation of the heat collection tube base and the heat insulation and cleaning assembly in this utility model. Figure 5 This is a schematic diagram of the second water storage box and its connection structure of the present invention; Figure 6 This is a schematic diagram of the structural connecting rod and its connection structure of this utility model.

[0014] In the diagram: 1. Bracket; 2. Base support for collector tube; 3. Collector tube; 4. Solar water heater tank; 5. Protective box; 6. Insulation sleeve; 7. Wiping ring; 8. Scraping ring; 9. Connecting rod; 10. Water pump; 11. Water storage tank; 12. First water inlet pipe; 13. Second water inlet pipe; 14. Second water inlet pipe; 15. First water inlet pipe; 16. Protective sleeve; 17. Guide rod; 18. Pull rope; 19. First guide wheel; 20. Pressing wheel; 21. Second guide wheel; 22. First water storage box; 23. First spring; 24. Third spring; 25. Second water storage box; 26. Second spring; 27. Support shaft. Detailed Implementation

[0015] 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.

[0016] This utility model provides an embodiment: Please refer to Figures 1-6A high-efficiency and energy-saving solar water heater includes a bracket 1, a collector tube base 2, a collector tube 3, a solar water heater tank 4, and a power component. Support shafts 27, adapted to the collector tube 3, are evenly arranged on the collector tube base 2. The support shafts 27 support the bottom of the collector tube 3, ensuring its stable installation. Both the collector tube base 2 and the solar water heater tank 4 are connected to the bracket 1. One end of the collector tube 3 is connected to the collector tube base 2, and the other end is connected to the solar water heater tank 4. The assembly and connection methods between the bracket 1, the collector tube base 2, the collector tube 3, and the solar water heater tank 4 all adopt conventional and mature technologies in the field of solar thermal collectors. The specific connection methods and installation processes are well known to those skilled in the art and will not be described in detail here.

[0017] A heat-insulating cleaning assembly is provided on the outer ring of the support shaft 27. This assembly includes a heat-insulating sleeve 6, a scraping ring 8, and a wiping ring 7, all fitted around the outer ring of the support shaft 27. One end of the heat-insulating sleeve 6 is connected to the bottom support 2 of the heat collector tube, and the other end is connected to the scraping ring 8. The end of the scraping ring 8 furthest from the heat-insulating sleeve 6 is connected to the wiping ring 7. Both the scraping ring 8 and the wiping ring 7 are movably connected to the heat collector tube 3. During use, the wiping ring 7 wipes the heat collector tube 3, removing dust, fallen leaves, and other impurities, while the scraping ring 8 scrapes away stubborn stains from the surface of the heat collector tube 3, ensuring effective cleaning. After cleaning, the heat collector tube 3 is covered by the heat-insulating sleeve 6, reducing the heat exchange efficiency between the tube and the external environment, thus significantly reducing heat loss and further improving the overall energy-saving effect of the solar water heater. The materials of the scraping ring 8 and the wiping ring 7 can be selected according to the requirements and there are no restrictions here. The outer ring of the support shaft 27 is fitted with a sealing sleeve. The sealing sleeve ensures that both the wiping ring 7 and the scraping ring 8 are in an interference fit with the support shaft 27, preventing rainwater from entering the insulation sleeve 6.

[0018] In Example 1, the insulation sleeve 6 adopts a pleated structure design. As the scraping ring 8 moves, the pleats of the insulation sleeve 6 gradually unfold. When the pleats of the insulation sleeve 6 are fully unfolded, the continued movement of the scraping ring 8 can stretch the insulation sleeve 6. Under the action of the tensile force, the insulation sleeve 6 undergoes elastic deformation, and its overall length is extended accordingly, ultimately achieving complete coverage of the heat collection tube 3. In addition, the specific structural form and material selection of the insulation sleeve 6 can be flexibly set according to actual application requirements, and no uniform limitation is made in this example.

[0019] Two adjacent insulation cleaning components are connected by a connecting rod 9, which is connected to the scraping ring 8 and the wiping ring 7. The connecting rod 9 can drive all the wiping rings 7 and scraping rings 8 in this application to move synchronously. A sealing ring is provided on the side of the wiping ring 7 near the solar water heater tank 4. The sealing ring increases the sealing performance when the wiping ring 7 is in contact with the outer wall of the solar water heater tank 4, thus ensuring that the inner cavity of the insulation sleeve 6 can always maintain a sealed state during the operation of the insulation cleaning component. The material and shape of the sealing ring can be set according to requirements and are not limited here.

[0020] A guide rod 17 is movably connected to the middle of the connecting rod 9. The guide rod 17 is parallel to the heat collector tube 3. The guide rod 17 is connected to the bottom support 2 of the heat collector tube and the water tank 4 of the solar water heater. The guide rod 17 guides the connecting rod 9. The connecting rod 9 moves along the direction of the guide rod 17. When the connecting rod 9 drives the wiping ring 7 and the scraping ring 8 to move, the impurities adhering to the surface of the heat collector tube 3 can be cleaned.

[0021] The power assembly drives the connecting rod 9 to move. The power assembly includes a lowering structure, a protective box 5, an ascending structure, a water storage tank 11, and a water pump 10.

[0022] The descending structure includes a first spring 23, a protective sleeve 16, a second spring 26, and a third spring 24. The first spring 23 is located inside the protective sleeve 16. One end of the first spring 23 and the protective sleeve 16 is connected to the inner side of the collector tube base 2. The other end of the first spring 23 and the protective sleeve 16 is connected to the side of the connecting rod 9 away from the solar water heater tank 4. Under the action of the rebound force of the first spring 23, the connecting rod 9 can move away from the solar water heater tank 4 and move downward. When the connecting rod 9 moves downward, it can drive the wiping ring 7 and the scraping ring 8 to move downward simultaneously. The heat insulation sleeve 6 can unwrap the collector tube 3. The collector tube 3 can convert solar energy into heat energy and heat water.

[0023] The lifting structure includes a first water storage box 22, a second water storage box 25, a pull rope 18, and a pulley system that are movably connected to the inner cavity of the protective box 5. The first water storage box 22 is connected to the protective box 5 through a second spring 26. Under the action of the rebound force of the second spring 26, the first water storage box 22 can move upward. The second water storage box 25 is connected to the protective box 5 through a third spring 24. Under the action of the rebound force of the third spring 24, the second water storage box 25 can move upward.

[0024] The pulley system is located above the first water storage box 22 and the second water storage box 25, and includes a first guide wheel 19, a pressing wheel 20, and a second guide wheel 21 arranged sequentially. The first guide wheel 19 and the second guide wheel 21 are connected to the top of the protective box 5, and the pressing wheel 20 is connected to the top of the second water storage box 25. The pull rope 18 is wound around the bottom of the pressing wheel 20. One end of the pull rope 18 passes through the top of the first guide wheel 19 and is connected to the side of the connecting rod 9 near the solar water heater tank 4. The other end of the pull rope 18 passes through the top of the second guide wheel 21 and is connected to the top of the first water storage box 22. With the pulley system, when the first water storage box 22 moves downward, the pull rope 18 can drive the connecting rod 9 upward. When the second water storage box 25 moves downward, the pull rope 18 can drive the connecting rod 9 to continue moving upward. When both the first water storage box 22 and the second water storage box 25 move upward, the connecting rod 9 can move downward under the action of the rebound force of the first spring 23.

[0025] The water storage tank 11 is located above the first water storage box 22 and the second water storage box 25. The bottom end of the inner cavity of the water storage tank 11 is connected to the water inlet port of the first water storage box 22 through the first water injection pipe 12, and the bottom end of the inner cavity of the water storage tank 11 is connected to the water inlet port of the second water storage box 25 through the second water injection pipe 13. The water inlet end of the water pump 10 is connected to the water outlet port of the first water storage box 22 through the first water inlet pipe 15, and the water inlet end of the water pump 10 is connected to the water outlet port of the second water storage box 25 through the second water inlet pipe 14. The water outlet end of the water pump 10 is connected to the inner cavity of the water storage tank 11. An electric ball valve is provided at one end of each of the four water injection pipes: the first water injection pipe 12, the second water injection pipe 13, the first water inlet pipe 15, and the second water inlet pipe 14. The controller of this application can control the automatic opening and closing of the electric ball valve. When the electric ball valve on the first water inlet pipe 12 is in the open state, water in the water storage tank 11 can be injected into the first water storage box 22. The weight of the first water storage box 22 increases, which can drive the end of the pull rope 18 away from the connecting rod 9 to move down. When the electric ball valve on the first water inlet pipe 15 is in the open state, the water pump 10 can pump the water in the first water storage box 22 back into the water storage tank 11. When the electric ball valve on the second water inlet pipe 13 is in the open state, the water in the first water storage box 22 can be pumped back into the water storage tank 11. When in the open state, the water in the water storage tank 11 can be automatically injected into the inner cavity of the second water storage box 25. The second water storage box 25 can drive the end of the pull rope 18 away from the connecting rod 9 to continue to move down. When the electric ball valve on the second water inlet pipe 14 is in the open state, the water pump 10 can pump the water in the second water storage box 25 back into the water storage tank 11. Furthermore, the second water injection pipe 13, the first water inlet pipe 15, and the second water inlet pipe 14 are all telescopic pipes, and the materials can be set according to the requirements, without any restrictions.

[0026] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between each electrical component are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0027] In summary: When this high-efficiency energy-saving solar water heater is in use, the controller identifies day and night based on conventional methods such as time preset. At night, the controller controls the electric ball valve on the first water inlet pipe 12 to be in the open state. Water in the storage tank 11 is automatically injected into the first water storage box 22 under the action of gravity. The gravity of the first water storage box 22 gradually increases, and the first water storage box 22 can drive the connecting rod 9 to move upward through the pull rope 18. The connecting rod 9 drives the wiping ring 7 and the scraping ring 8 to move upward. When the wiping ring 7 moves, it wipes the wall of the heat collection tube 3, and the scraping ring 8 removes stubborn stains remaining on the surface of the heat collection tube 3. The scraping process cleans the collector tube 3. When the bottom of the first water storage box 22 contacts the ground, the controller of this application controls the electric ball valve on the second water injection pipe 13 to be in the open state. The water in the storage tank 11 can be automatically injected into the inner cavity of the second water storage box 25. The second water storage box 25 can be driven by the pull rope 18 to move the connecting rod 9 upward until the wiping ring 7 is tightly attached to the outer wall of the solar water heater tank 4. At this time, the heat insulation sleeve 6 covers the collector tube 3, slowing down the heat exchange efficiency between the tube and the external environment, thereby significantly reducing the heat loss of the collector tube and improving the overall energy-saving effect of the solar water heater.

[0028] During the daytime, the controller of this application keeps the electric ball valves on both the first water inlet pipe 12 and the second water inlet pipe 13 closed, opens the electric ball valve on the second water inlet pipe 14, and uses the water pump 10 to pump out the water in the second water storage box 25. The weight of the second water storage box 25 gradually decreases, and under the action of the rebound force of the first spring 23 and the third spring 24, the second water storage box 25 can move upward. After the water pump 10 completely pumps out the water in the second water storage box 25, the second water storage box 25 resets, and the electric ball valve on the second water inlet pipe 14 is closed. The electric ball valve on the first water inlet pipe 15 is opened, and the water pump 10 can pump the water in the first water storage box 22 back into the water storage tank 11. During the drainage process, under the action of the rebound force of the second spring 26 and the first spring 23, the first water storage box 22 moves upward until the first water storage box 22 resets, the water pump 10 stops working, and the electric ball valve on the first water inlet pipe 15 is closed.

[0029] During the drainage process, the first water storage box 22 and the second water storage box 25 are subjected to the rebound force of the first spring 23, and the connecting rod 9 moves down. The connecting rod 9 drives the scraping ring 8 and the wiping ring 7 to move down, and the insulation sleeve 6 is in a state of gradual contraction. After the wiping ring 7 returns to the initial position, the insulation sleeve 6 will completely release the covering state of the heat collection tube 3. The cleaned heat collection tube 3 can fully receive sunlight, improve the heat collection efficiency, and ultimately achieve a significant optimization of the overall heat conversion efficiency of the solar water heater.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The materials and specifications of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency energy-saving solar water heater, comprising a support frame (1), a collector tube base (2), a collector tube (3), a solar water heater tank (4), and a power assembly, characterized in that: The base (2) of the heat collection tube is uniformly provided with support shafts (27) adapted to the heat collection tube (3). The outer ring of the support shaft (27) is provided with a heat insulation and cleaning assembly. The heat insulation and cleaning assembly includes a heat insulation sleeve (6) fitted on the outer ring of the support shaft (27), a scraping ring (8) and a wiping ring (7). One end of the heat insulation sleeve (6) is connected to the base (2) of the heat collection tube, and the other end of the heat insulation sleeve (6) is connected to the scraping ring (8). The scraping ring (8) is far from the base (2). One end of the insulation sleeve (6) is connected to the wiping ring (7), and both the scraping ring (8) and the wiping ring (7) are movably connected to the heat collection tube (3). Two adjacent insulation cleaning components are connected by a connecting rod (9). A guide rod (17) is movably connected to the middle of the connecting rod (9). The guide rod (17) is parallel to the heat collection tube (3). The guide rod (17) is connected to the heat collection tube base (2) and the solar water heater tank (4).

2. The high-efficiency energy-saving solar water heater according to claim 1, characterized in that: The connecting rod (9) is connected to the scraping ring (8) and the wiping ring (7). The wiping ring (7) has a sealing ring on the side near the solar water heater tank (4).

3. The high-efficiency energy-saving solar water heater according to claim 1, characterized in that: The power assembly drives the connecting rod (9) to move. The power assembly includes a lowering structure, a protective box (5), an ascending structure, a water storage tank (11), and a water pump (10).

4. A high-efficiency energy-saving solar water heater according to claim 3, characterized in that: The descending structure includes a first spring (23), a protective sleeve (16), a second spring (26), and a third spring (24). The first spring (23) is located inside the protective sleeve (16). One end of the first spring (23) and the protective sleeve (16) are connected to the inner side of the heat collection tube base (2). The other end of the first spring (23) and the protective sleeve (16) are connected to the side of the connecting rod (9) away from the solar water heater tank (4).

5. A high-efficiency energy-saving solar water heater according to claim 4, characterized in that: The rising structure includes a first water storage box (22), a second water storage box (25), a pull rope (18), and a pulley group that are movably connected to the inner cavity of the protective box (5). The first water storage box (22) is connected to the protective box (5) through a second spring (26), and the second water storage box (25) is connected to the protective box (5) through a third spring (24). The pulley assembly is located above the first water storage box (22) and the second water storage box (25), and includes a first guide wheel (19), a pressing wheel (20), and a second guide wheel (21) arranged in sequence. The first guide wheel (19) and the second guide wheel (21) are connected to the top of the protective box (5). The pressing wheel (20) is connected to the top of the second water storage box (25). The pull rope (18) is wound around the bottom of the pressing wheel (20). One end of the pull rope (18) is wound around the top of the first guide wheel (19) and connected to the side of the connecting rod (9) near the solar water heater tank (4). The other end of the pull rope (18) is wound around the top of the second guide wheel (21) and connected to the top of the first water storage box (22).

6. A high-efficiency energy-saving solar water heater according to claim 5, characterized in that: The water inlet of the water pump (10) is connected to the outlet of the first water storage box (22) through the first water inlet pipe (15). The water inlet of the water pump (10) is connected to the outlet of the second water storage box (25) through the second water inlet pipe (14). The outlet of the water pump (10) is connected to the inner cavity of the water storage tank (11). The water storage tank (11) is located above the first water storage box (22) and the second water storage box (25). The bottom of the inner cavity of the water storage tank (11) is connected to the inlet of the first water storage box (22) through the first water injection pipe (12). The bottom of the inner cavity of the water storage tank (11) is connected to the inlet of the second water storage box (25) through the second water injection pipe (13).

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