Solar heat collection system adaptive to urban and rural construction

Abstract

The invention discloses a solar heat collection system adaptive to urban and rural construction, and belongs to the technical field of solar heat collection. A solar heat collection system adaptive to urban and rural construction comprises a support and further comprises a heat collection part movably arranged on the support and comprising a heat collection pipe, a water tank and a bottom tank, the descaling part comprises a first descaling assembly in the heat collecting pipe, a water tank, a second descaling assembly in the bottom box and a driving assembly for driving the second descaling assembly; the flushing assembly is arranged on the water tank and the bottom tank and works cooperatively with the descaling part; through the dual effects of mechanical linkage (scraping) and dynamic displacement (reciprocating motion and rotation) and in combination with chemical descaling, efficient in-situ cleaning of scale on the inner wall and the outer wall of the solar heat collection system is achieved, the problems that traditional detachable cleaning is low in efficiency and damages equipment are solved, the heat efficiency of the system is remarkably improved, the service life of the system is remarkably prolonged, and the energy consumption is reduced. And the heat collection performance of the solar heat collection system is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of solar heat collection, and particularly to a solar heat collection system adapted to urban and rural construction. Background Art

[0002] With the rapid development of modern social economy, the demand for energy by humans is increasing. However, the reserves of traditional energy sources such as coal, oil, and natural gas are continuously decreasing and becoming increasingly scarce, resulting in continuous price increases. At the same time, the environmental pollution problems caused by conventional fossil fuels are becoming more and more serious, which greatly restricts the development of society and the improvement of the quality of human life. The energy problem has become one of the most prominent problems in the contemporary world. Therefore, seeking new energy sources, especially pollution-free clean energy, has become a research hotspot for people now.

[0003] The solar heat collection system is applied to solar water heaters, which are composed of collectors, insulation water tanks, and related accessories. Solar water heaters are the first renewable energy industry to achieve commercialization in China. At the same time, solar water heaters are also the most mature products in the solar energy industry in China. With the development of urban and rural construction, the implementation of the policies of bringing solar energy to the countryside and energy-saving and people-benefiting projects, as well as the need for building energy conservation, the overall solar thermal utilization industry has developed steadily, and the rural solar energy market has become the main target of most enterprises.

[0004] After a solar water heater has been used for a period of time, scale will form on the inner wall of the water tank and the heat collection tubes. The heat conduction capacity of the scale is very poor, the water absorbs less heat, and the scale forms a heat barrier, resulting in insufficient heat absorption of the water and difficulty in raising the water temperature. At the same time, the scale on the inner wall of the tube reduces the water circulation speed to a certain extent, resulting in insufficient heat inside the heat collection tube and slow water temperature rise. Therefore, it is necessary to clean the scale on the inner wall of the heat collection tube and the water tank. The existing cleaning methods generally involve removing the heat collection tubes and flushing them with a high-pressure water gun, which is cumbersome to operate and the heat collection tubes are easily broken and damaged during disassembly, affecting their normal use. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art, and to provide a solar heat collection system adapted to urban and rural construction.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A solar heat collection system adapted to urban and rural construction, including a bracket, and further including: A heat collection part, movably arranged on the bracket, including heat collection tubes and a water tank and a bottom tank that are interconnected; A descaling part, including a first descaling component in the heat collection tubes, a second descaling component in the water tank and the bottom tank, and a driving component for driving the second descaling component; A flushing component, arranged in the water tank and the bottom tank and working in cooperation with the descaling part; Among them, the first descaling component and the second descaling component are connected by a linkage structure.

[0007] Preferably, the first descaling component includes: A rotating rod, rotatably connected between the water tank and the bottom tank; A plurality of first connecting rods, equidistantly distributed along the axial direction of the rotating rod; A first scraping plate, connected to the end of each first connecting rod and in contact with the inner wall of the heat collecting tube.

[0008] Preferably, the second descaling component includes: A rotating shaft, rotatably arranged in the water tank or the bottom tank; A plurality of second connecting rods, equidistantly distributed along the axial direction of the rotating shaft; A plurality of second scraping plates, connected to the end of each second connecting rod and in contact with the inner wall of the water tank or the bottom tank.

[0009] Preferably, both the water tank and the bottom tank are circular boxes; The central axes of the rotating shafts on the two descaling components respectively coincide with the center of the water tank or the bottom tank.

[0010] Preferably, it further includes: A torsion spring, arranged inside the rotating shaft and sleeved outside the second connecting rod; The second scraping plate elastically abuts against the outer wall of the rotating rod.

[0011] Preferably, the linkage structure includes: A protective shell, arranged between the rotating rod and the rotating shaft; A worm, rotatably connected inside the protective shell and connected to the rotating shaft; A worm gear, arranged on the rotating rod and meshed with the worm.

[0012] Preferably, the driving component includes: A driving motor, fixed to the bracket; Two elastic telescopic rods, respectively placed at both ends of the bracket, and one of them connects the output shaft of the driving motor and the rotating shaft inside the bottom tank; A top rod, fixedly arranged outside the elastic telescopic rod; A stress block, arranged at the end of the bottom tank and abutting against the top rod, and its contact surface is an inclined extrusion surface.

[0013] Preferably, a connecting plate is provided between the bottom tank and the water tank, and a guide rod slidably connected to the bracket is provided at the end of the water tank.

[0014] Preferably, it further includes: A housing, fixedly arranged outside the bottom tank; A movable gear, rotatably connected inside the housing and connected to the heat collecting tube; The rack plate is slidably connected to the housing and meshes with the movable gear, and its end is fixed to the bracket through a connecting rod; The brush is arranged between the housing and the water tank and is in movable contact with the outer wall of the heat collecting pipe.

[0015] Preferably, the flushing assembly includes: The descaling agent tank is arranged on the top of the water tank and is communicated with the water tank through a valve body; The sewage valve is arranged at the bottom of the bottom tank and is used for discharging the removed water scale.

[0016] Compared with the prior art, the present invention provides a solar heat collection system adapted to urban and rural construction, having the following beneficial effects: 1. The solar heat collection system adapted to urban and rural construction combines mechanical scraping and chemical descaling to remove the water scale on the inner walls of the heat collecting pipe, the water tank and the bottom tank, solves the problem that the heat conduction efficiency of the traditional solar water heater decreases due to the accumulation of water scale, restores the heat conduction capacity, and ensures the solar heat collection effect.

[0017] 2. The solar heat collection system adapted to urban and rural construction performs in-situ self-cleaning on the inner wall of the heat collection part by setting a descaling component, without the need to disassemble the heat collecting pipe for high-pressure flushing, avoiding the disassembly risk, prolonging the service life of the equipment, and solving the problem that it is difficult for traditional static cleaning to cover all areas. By using reciprocating movement and rotational linkage, it ensures that the water scale adhered to the inner wall of the heat collection part is effectively separated, improving its descaling effect.

[0018] 3. The solar heat collection system adapted to urban and rural construction brushes the sundries adhered to the outer side of the heat collecting pipe by the contact between the outer side of the heat collecting pipe and the brush when the heat collecting pipe rotates, avoiding affecting the heat collecting pipe's reception of sunlight, thereby ensuring the heat collection efficiency and heat collection effect of the heat collecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the structural schematic diagram of the present invention Figure 1 ; Figure 2 is the Figure 1 enlarged structural schematic diagram of part A in the present invention; Figure 3 is the structural schematic diagram of the present invention Figure 2 ; Figure 4 is the Figure 3 enlarged structural schematic diagram of part B in the present invention; Figure 5 is the structural schematic diagram of the heat collection part of the present invention; Figure 6 is the cross-sectional structural schematic diagram of the bottom tank of the present invention; Figure 7Schematic diagram of the external structure of the rotating shaft of the present invention; Figure 8 Partial sectional structure schematic diagram of the heat collection part of the present invention; Figure 9 Schematic diagram of the external structure of the rotating rod of the present invention; Figure 10 Schematic diagram of the external structure of the heat collection tube of the present invention; Figure 11 Schematic diagram of the external structure of the elastic telescopic rod of the present invention.

[0020] In the figure: 1, support; 2, heat collection tube; 3, water tank; 4, bottom box; 5, connecting plate; 6, descaling agent box; 601, sewage discharge valve; 7, rotating rod; 701, first connecting rod; 702, first scraper; 8, rotating shaft; 801, second connecting rod; 802, second scraper; 9, protective shell; 901, worm; 902, worm gear; 10, driving motor; 11, elastic telescopic rod; 111, ejector rod; 12, stress block; 13, guide rod; 14, outer shell; 141, movable gear; 142, rack plate; 15, brush. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] Such as Figure 1 、 Figure 3 、 Figure 5 And Figure 6As shown in the figure, this embodiment proposes a solar heat collection system adapted to urban and rural construction, including a bracket 1 fixed on the roof or ground of a building. The bracket adopts a lightweight aluminum alloy frame structure and is galvanized on the surface for anti-corrosion. The heat collection part is movably arranged on the bracket 1 and includes a heat collection pipe 2, a water tank 3 and a bottom tank 4. The heat collection pipe 2 adopts vacuum glass tubes arranged in parallel. The upper and lower ends of the heat collection pipe 2 are respectively communicated with the water tank 3 and the bottom tank 4. The water tank 3 and the bottom tank 4 adopt circular stainless steel boxes and are fixed at a certain distance through a connecting plate 5. The descaling part integrates mechanical scraping and linkage structure, including a first descaling component in the heat collection pipe 2, a second descaling component in the water tank 3 and the bottom tank 4, and a driving component for driving the second descaling component. The two second descaling components are connected with the first descaling component through a linkage structure. The chemical descaling and sewage discharge of the flushing component are collaboratively designed, arranged on the water tank 3 and the bottom tank 4 and work together with the descaling part. In this application, the driving component drives the second descaling component in the bottom tank 4 to act. The second descaling component drives the first descaling component in the heat collection pipe 2 to act through the lower side linkage structure, so that the upper end of the first descaling component drives the second descaling component in the water tank 3 to act through the linkage structure, realizing the mechanical scraping and cleaning of the scale on the inner wall of the heat collection part. Combined with the chemical descaling of the flushing component, it effectively removes the scale on the inner walls of the heat collection pipe 2, the water tank 3 and the bottom tank 4, solves the problem that the heat conduction efficiency of traditional solar water heaters decreases due to scale accumulation, restores the heat conduction ability, and ensures the solar heat collection effect. And the descaling component is set to perform in-situ self-cleaning on the inner wall of the heat collection part, without disassembling the heat collection pipe 2 for high-pressure flushing, avoiding the disassembly risk, prolonging the service life of the equipment, and solving the problem that it is difficult for traditional static cleaning to cover all areas. By using reciprocating movement and rotational linkage, it ensures that the scale adhered to the inner wall of the heat collection part is effectively separated and removed, improving the descaling effect. It should be noted that when the descaling component is moving, it can cooperate with the water body to effectively shake off or be impacted to remove the softened scale on its own structure.

[0024] Such as Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, as a preferred embodiment, on the basis of the above method, further, the first descaling component includes a rotating rod 7 rotatably connected between the water tank 3 and the bottom tank 4, a plurality of first connecting rods 701 equidistantly distributed along the axial direction of the rotating rod 7, and a first scraper 702 connected to the end of each first connecting rod 701 and in contact with the inner wall of the heat collecting tube 2. When the first descaling component works, the rotating rod 7 rotates between the water tank 3 and the bottom tank 4. The rotating rod 7 drives the first scraper 702 to rotate on the inner wall of the heat collecting tube 2 through the first connecting rod 701 to scrape the scale inside it; the upper end of the rotating rod 7 is linked to the second descaling component in the water tank 3 through a linkage structure, so that the second scraper 802 synchronously scrapes the scale on the inner wall of the water tank 3, and the lower end of the rotating rod 7 is driven by another linkage structure by the second descaling component in the bottom tank 4.

[0025] As Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, as a preferred embodiment, on the basis of the above method, further, the second descaling component includes a rotating shaft 8 rotatably arranged in the water tank 3 or the bottom tank 4, a plurality of second connecting rods 801 equidistantly distributed along the axial direction of the rotating shaft 8, and a second scraper 802 connected to the end of each second connecting rod 801 and in contact with the inner wall of the water tank 3 or the bottom tank 4; when the rotating shaft 8 rotates, it drives the second scraper 802 to scrape the scale on the inner wall of the water tank 3 or the bottom tank 4 through the second connecting rod 801; It should be noted that the rotating shaft 8 drives the worm 901 rotating in the protective shell 9 to mesh with the worm gear 902 outside the rotating rod 7 through a linkage structure, so that the second descaling component in the bottom tank 4 drives the first descaling component in the heat collecting tube 2 to act; Further, the second connecting rod 801 is rotatably arranged on the rotating shaft 8. When the second scraper 802 rotates and touches the rotating rod 7, due to the elastic design such as the action of a torsion spring, it automatically tilts and swings, and the second scraper 802 and the second connecting rod 801 rotate relative to the rotating shaft 8 to avoid hard collision.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 11 As shown, as a preferred embodiment, on the basis of the above method, further, the driving component includes a driving motor 10 fixed on the bracket 1 and elastic telescopic rods 11 respectively placed at both ends of the bracket 1. One of the elastic telescopic rods 11 is connected to the output shaft of the driving motor 10 and the rotating shaft 8 in the bottom tank 4. A top rod 111 is fixedly arranged outside the elastic telescopic rod 11, and a force receiving block 12 in contact with the top rod 111 is arranged at the end of the bottom tank 4, and the contact surface of the force receiving block 12 is an inclined extrusion surface; When the driving motor 10 operates, the ejector rod 111 outside the elastic telescopic rod 11 abuts against the inclined extrusion surface of the force-receiving block 12 at the end of the bottom box 4. The extrusion force forces the heat collection part (including the heat collection pipe 2, the water tank 3, and the bottom box 4) to reciprocate left and right relative to the bracket 1 along the guide rod 13, causing the heat collection part to shake, and improving the effect of the falling and separation of the softened water scale inside the heat collection part. It should be noted that balls can be arranged at the end of the ejector rod 111 to convert the sliding friction between the ejector rod 111 and the force-receiving block 12 into rolling friction, reducing the wear degree between the ejector rod 111 and the force-receiving block 12.

[0027] As Figure 3 , Figure 4 , Figure 6 and Figure 10 shown, as a preferred embodiment, on the basis of the above method, further, an outer shell 14 is fixedly arranged outside the bottom box 4. An active gear 141 connected to the heat collection pipe 2 is rotatably arranged inside the outer shell 14. When the whole heat collection part moves, the active gear 141 inside the outer shell 14 meshes with the fixed rack plate 142 to drive the heat collection pipe 2 to rotate, so that the outer wall of the heat collection pipe 2 contacts the brush 15, and the brush 15 brushes off the sundries adhered to the outside of the heat collection pipe 2, avoiding affecting the sunlight reception of the heat collection pipe 2, thereby ensuring the heat collection efficiency and heat collection effect of the heat collection pipe 2.

[0028] As Figure 1 , Figure 3 and Figure 5 shown, as a preferred embodiment, on the basis of the above method, further, the flushing assembly includes a descaling agent tank 6 arranged on the top of the water tank 3 and communicated with the water tank 3 through a valve body, and a sewage discharge valve 601 arranged at the bottom of the bottom box 4 for discharging water scale. Open the valve body between the descaling agent tank 6 and the water tank 3, so that the descaling liquid flows into the water tank 3 through the connecting pipe. The descaling liquid spreads downward from the water tank 3 to the heat collection pipe 2 and the bottom box 4, soaking the inner walls of the heat collection pipe 2, the water tank 3 and the bottom box 4 to soften the water scale. After the softened water scale on the inner wall of the heat collection part is cleaned by the descaling assembly, open the sewage discharge valve 601 at the bottom of the bottom box 4 to discharge the sewage containing scale.

[0029] The present invention also discloses a usage method of a solar heat collection system adapted to urban and rural construction, including the following steps: S1: Open the valve body between the descaling agent tank 6 and the water tank 3, so that the descaling liquid flows into the water tank 3 through the connecting pipe. The descaling liquid spreads downward from the water tank 3 to the heat collection pipe 2 and the bottom box 4, soaking the inner walls of the heat collection pipe 2, the water tank 3 and the bottom box 4 to soften the water scale; S2: Start the driving motor 10, and its output shaft drives the rotating shaft 8 in the bottom box 4 to rotate through the elastic telescopic rod 11. The rotating shaft 8 drives the second scraper 802 to rotate and scrape along the inner wall of the bottom box 4 through the second connecting rod 801 to remove the water scale on the inner wall; When the second scraper 802 rotates and touches the rotating rod 7, it will automatically tilt and swing due to the elastic design to avoid hard collision; S3: The rotating shaft 8 drives the rotating rod 7 to rotate synchronously through the linkage structure. The rotating rod 7 drives the first scraper 702 to rotate on the inner wall of the heat collecting tube 2 to scrape off the scale inside it; The upper end of the rotating rod 7 is linked to the second descaling component in the water tank 3, so that the second scraper 802 synchronously scrapes the scale on the inner wall of the water tank 3; S4: When the driving motor 10 operates, the ejector rod 111 outside the elastic telescopic rod 11 abuts against the inclined extrusion surface of the force receiving block 12 at the end of the bottom box 4. The extrusion force forces the heat collecting part to reciprocate left and right relative to the bracket 1 along the guide rod 13, and the shaking of the heat collecting part enhances the dirt separation effect; S5: When the heat collecting part moves, the movable gear 141 in the outer shell 14 meshes with the fixed rack plate 142 to drive the heat collecting tube 2 to rotate, so that its outer wall contacts the brush 15 to remove the dirt on the outer surface; S6: Open the drain valve 601 at the bottom of the bottom box 4 to drain the scale-containing sewage; S7: Close the drain valve 601, refill with clean water, and repeat the mechanical scraping and dynamic displacement steps of S2 - S6 above to rinse the residual descaling liquid and broken scale.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A solar heat collection system adapted to urban and rural construction, comprising a bracket (1), characterized in that, Further comprising:    A heat collection part, which is movably arranged on the bracket (1) and includes a heat collection pipe (2) and a water tank (3) and a bottom tank (4) that are connected to each other; A descaling part, which includes a first descaling component in the heat collection pipe (2), a second descaling component in the water tank (3) and the bottom tank (4), and a driving component for driving the second descaling component; A flushing component, which is arranged in the water tank (3) and the bottom tank (4) and works in cooperation with the descaling part; Wherein, the first descaling component is connected to the second descaling component through a linkage structure.

2. The solar heat collection system adapted to urban and rural construction according to claim 1, wherein The first descaling component includes:    A rotating rod (7), which is rotatably connected between the water tank (3) and the bottom tank (4); A plurality of first connecting rods (701), which are equidistantly distributed along the axial direction of the rotating rod (7); A first scraper (702), which is connected to the end of each first connecting rod (701) and contacts the inner wall of the heat collection pipe (2).

3. The solar heat collection system adapted to urban and rural construction according to claim 2, wherein The second descaling component includes:    A rotating shaft (8), which is rotatably arranged in the water tank (3) or the bottom tank (4); A plurality of second connecting rods (801), which are equidistantly distributed along the axial direction of the rotating shaft (8); A plurality of second scrapers (802), which are connected to the end of each second connecting rod (801) and contact the inner wall of the water tank (3) or the bottom tank (4).

4. A solar heat collection system adapted to urban and rural construction according to claim 3, characterized in that, Both the water tank (3) and the bottom tank (4) are circular boxes; The central axes of the rotating shafts (8) on the two descaling components respectively coincide with the center of the circle of the water tank (3) or the bottom tank (4).

5. A solar heat collection system adapted to urban and rural construction according to claim 4, characterized in that, Further comprising: A torsion spring, which is arranged in the rotating shaft (8) and sleeved outside the second connecting rod (801); The second scraper (802) elastically abuts against the outer wall of the rotating rod (7).

6. The solar heat collection system adapted to urban and rural construction according to claim 5, characterized in that, The linkage structure includes: A protective shell (9), which is arranged between the rotating rod (7) and the rotating shaft (8); A worm (901), which is rotatably connected in the protective shell (9) and connected to the rotating shaft (8); A worm gear (902), which is arranged on the rotating rod (7) and meshed with the worm (901).

7. The solar heat collection system adapted to urban and rural construction according to claim 6, characterized in that, The driving component includes:    A driving motor (10), which is fixed to the bracket (1); Two elastic telescopic rods (11), which are respectively arranged at both ends of the bracket (1), and one of them connects the output shaft of the driving motor (10) to the rotating shaft (8) in the bottom tank (4); A top rod (111), which is fixed to the outside of the elastic telescopic rod (11); A force receiving block (12), which is arranged at the end of the bottom tank (4) and abuts against the top rod (111), and its contact surface is an inclined extrusion surface.

8. A solar heat collection system adapted to urban and rural construction according to claim 7, characterized in that, A connecting plate (5) is arranged between the bottom tank (4) and the water tank (3), and a guide rod (13) that is slidably connected to the bracket (1) is arranged at the end of the water tank (3).

9. A solar heat collection system adapted to urban and rural construction according to claim 8, characterized in that, Further comprising:    A housing (14), which is fixed to the outside of the bottom tank (4); A movable gear (141), which is rotatably connected in the housing (14) and connected to the heat collection pipe (2); A rack plate (142), which is slidably connected to the housing (14) and meshed with the movable gear (141), and its end is fixed to the bracket (1) through a connecting rod; A brush (15), which is arranged between the housing (14) and the water tank (3) and is in movable contact with the outer wall of the heat collection pipe (2).

10. A solar heat collection system adapted to urban and rural construction according to claim 9, characterized in that, The flushing component includes:    A descaling agent tank (6), which is arranged on the top of the water tank (3) and is communicated with the water tank (3) through a valve body; A blow-off valve (601) is provided at the bottom of the bottom box (4) for discharging the removed water scale.

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