Solar water heater capable of improving energy conversion rate

Abstract

The invention discloses a solar water heater capable of improving the energy conversion rate, and belongs to the technical field of solar water heaters, the solar water heater comprises a solar water heater body, the solar water heater body comprises a water storage tank, a heat collection pipe and a supporting frame, and the supporting frame is fixedly installed on one side of the water storage tank; through mutual cooperation of a supporting frame, a solar water heater body, a supporting barrel, a sealing plate, a spring, a movable rod, a baffle, a third electric push rod, a photon sensor, a rotating block, a positioning block, a reflecting plate, a reflecting strip and a scraping plate, the reflecting plate can be moved to the position, opposite to the sunlight angle, of a heat collecting pipe; the reflecting plate and the reflecting strips increase the reflecting area of the solar rays through diffuse reflection, so that the other side, opposite to the solar rays, of the heat collecting pipe can absorb the solar rays, the total amount of the solar rays absorbed by the heat collecting pipe is increased, the reflecting effect on the solar rays is achieved, and the light conversion rate of the solar water heater body to solar energy is increased.

Description

Technical Field

[0001] The invention relates to the field of solar water heaters, in particular to a solar water heater capable of improving energy conversion efficiency. Background Art

[0002] Solar water heaters are heating devices that convert sunlight into heat energy, heating water from low temperature to high temperature to meet people's needs for hot water in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structural form. Vacuum tube solar water heaters are the main ones, accounting for 95% of the domestic market share. Vacuum tube household solar water heaters are composed of related parts such as heat collecting tubes, water storage tanks and brackets. The conversion of solar energy into heat energy mainly relies on vacuum collecting tubes. Vacuum collecting tubes use the principle that hot water floats and cold water sinks to make water microcirculate and obtain the required hot water.

[0003] After searching, it is found that there are problems with the solar water heaters in the prior art. Since the solar water heater faces south when installed, the sun rises from the east, moves to the south at noon, and moves to the west in the afternoon. In the morning, the sun is in the east, and the corresponding sunlight also shines on the solar water heater's collector tube from the east. At this time, the east side of the collector tube is exposed to sunlight while the other side is not exposed to sunlight. At noon, the sun moves to the south, and the sunlight directly shines on the front of the collector tube on the solar water heater, while the lower bottom surface of the collector tube is difficult to absorb the sunlight. In the afternoon, the sun gradually moves westward, and the sunlight shines on the collector tube of the solar water heater from the west. At this time, there are still areas on the collector tube that do not absorb sunlight, which makes the collector tube absorb sunlight less efficiently. At the same time, there is dust in the air, and some dust may adhere to the surface of the collector tube on the solar water heater. The dust also causes the collector tube to absorb less sunlight, which makes the energy conversion efficiency of the solar water heater low, affecting the staff's use of the solar water heater. Therefore, based on the above search and combined with the prior art, the present invention provides a solar water heater that can improve the energy conversion rate. Summary of the invention

[0004] The purpose of the present invention is to provide a solar water heater that can improve the energy conversion rate. It has the advantages of increasing the amount of sunlight absorbed by the collecting tube, improving the energy conversion efficiency of the solar water heater and cleaning the dust on the collecting tube, solving the problem that some areas on the collecting tube of the solar water heater are difficult to effectively absorb sunlight and there is dust on the surface.

[0005] To achieve the above object, the present invention provides the following technical solutions: A solar water heater capable of improving energy conversion efficiency comprises a solar water heater body, wherein the solar water heater body comprises a water tank, a heat collecting tube and a support frame, wherein the support frame is fixedly mounted on one side of the water tank, a plurality of the heat collecting tubes are mounted between the water tank and the support frame, valves are fixedly mounted on both sides of the water tank, two limiting frames are arranged on the bottom surface of the water tank, a movable plate is slidably connected inside the limiting frames, a photon sensor for measuring the angle of sunlight is fixedly mounted on the outer circular wall surface of the water tank, a reflecting mechanism for reflecting sunlight is arranged on the bottom surface of the support frame, a cleaning mechanism for cleaning scale inside the water tank is arranged on the outer circular wall surface of the water tank, and an angle adjustment mechanism for adjusting the inclination angle of the solar water heater body is arranged on the bottom surface of the water tank.

[0006] Furthermore, the reflecting mechanism includes a baffle, two supporting tubes are installed on both sides of the supporting frame, the inner circular wall surface of the supporting tube is slidably connected with a sealing plate, mineral oil is poured between the sealing plate and the inner top surface of the supporting tube, a spring for resetting the sealing plate is fixedly installed on the inner top surface of the supporting tube, a movable rod is fixedly installed on the bottom surface of the sealing plate, the movable rod is rotatably connected to the top surface of the baffle, the top surface of the baffle is rotatably connected with a plurality of third electric push rods, the outer circular wall surface of the heat collecting tube is provided with a reflecting plate for reflecting sunlight, one end of the telescopic shaft of the third electric push rod is connected to the outer circular wall surface of the reflecting plate Rotating connection, a plurality of reflective strips are installed on the inner circular wall of the reflective plate, the reflective strips are triangular and have a rough surface, two scrapers for cleaning dust on the heat collecting tube are fixedly installed on the inner circular wall of the reflective plate, a water pump for conveying water is fixedly installed on the outer circular wall of the water storage tank, a connecting pipe is fixedly sleeved on the inner circular wall of the water outlet of the water pump, a water outlet pipe is rotatably connected to the outer circular wall of the connecting pipe, a nozzle is fixedly sleeved inside the water outlet pipe, a gear ring is fixedly sleeved on the outer circular wall of the water outlet pipe, a rack is meshingly connected to the outer circular wall of the gear ring, and a second electric push rod for driving the rack to move is installed on the outer circular wall of the water storage tank.

[0007] Furthermore, an annular groove is provided on the outer circumferential wall surface of the connecting pipe, and a limiting ring for limiting the rotation of the water outlet pipe is fixedly sleeved on the inner circumferential wall surface of the water outlet pipe, and the limiting ring is rotatably connected to the annular groove; a connecting frame is fixedly installed on one side of the water tank, and a connecting block is fixedly installed on one side of the rack, and a connecting hole for sliding of the connecting block is provided on one side of the connecting frame, and the connecting block is slidably connected to the connecting hole.

[0008] Furthermore, the cleaning mechanism includes a support tube, the bottom surface of the support tube is rotatably connected to a support plate, the top surface of the support plate is fixedly mounted with an electronic scale for weighing the detergent, one side of the interior of the support tube is rotatably connected to two first electric push rods, one end of the telescopic shaft of the first electric push rod is rotatably connected to the support plate, a storage box for storing the detergent is fixedly mounted on the top surface of the support tube, a unloading valve for unloading is fixedly mounted on the bottom surface of the storage box, and an ultrasonic generator is fixedly mounted on one end of the water tank.

[0009] Furthermore, a sewage valve for sewage discharge is fixedly mounted on the outer circumferential wall surface of the water storage tank, and a sewage pipe is fixedly sleeved on the inner circumferential wall surface of the sewage valve.

[0010] Furthermore, the angle adjustment mechanism includes a base, which is arranged on the outer circular wall surface of the water tank, a top plate is fixedly installed on one side of the movable plate, two installation boxes are fixedly installed on the top surface of the base, the top surface of the installation box is rotatably connected with a screw rod, the bottom surface of the screw rod is fixedly installed with a first bevel gear, the screw rod is threadedly connected to the top plate, a driving motor is fixedly installed on the top surface of the base, a connecting roller is fixedly installed on one end of the driving shaft of the driving motor, two second bevel gears are fixedly sleeved on the outer circular wall surface of the connecting roller, the second bevel gears are meshed with the first bevel gear, and support legs are rotatably connected on both sides of the support frame.

[0011] Furthermore, a support hole for sliding the movable plate is provided on one side of the limiting frame, a limiting block is fixedly installed on one side of the movable plate, a limiting column is fixedly installed inside the supporting hole, and the limiting block is slidably connected to the limiting column.

[0012] Furthermore, a sealing ring for sealing is fixedly mounted on the bottom surface of the support tube, and the outer circular wall surface of the movable rod is movably sleeved with the inner circular wall surface of the sealing ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation of the solar water heater body, water pump, second electric push rod, water storage tank, connecting pipe, water outlet pipe and nozzle, the dust on the heat collecting tube can be cleaned before the sun appears. Through the cooperation of the supporting frame, solar water heater body, supporting tube, sealing plate, spring, movable rod, baffle, third electric push rod, photon sensor, rotating block, positioning block, reflecting plate, reflecting strip and scraper, the reflecting plate can be moved to the position on the heat collecting tube opposite to the angle of sunlight and the dust on the heat collecting tube can be cleaned again. The reflecting plate and multiple reflecting strips increase the reflection area of ​​sunlight through diffuse reflection, so that the other side of the heat collecting tube opposite to the sunlight can also absorb sunlight, thereby increasing the total amount of sunlight absorbed by the heat collecting tube. The reflecting plate moves to different positions on the heat collecting tube according to the movement of the sun, thereby achieving the reflection effect of sunlight, improving the light conversion rate of the solar water heater body to solar energy, and facilitating the staff to use the solar water heater body.

[0014] 2. The storage box and the discharge valve cooperate with each other, so that the detergent inside the storage box can fall onto the support plate. The support plate, electronic scale, ultrasonic generator, first electric push rod, rotating seat, support block and support tube cooperate with each other, so that the scale attached to the inner wall of the water storage tank can fall off, thereby cleaning the scale on the inner wall of the water storage tank.

[0015] 3. By cooperating with each other, the solar water heater body, the driving motor, the connecting roller, the second bevel gear, the first bevel gear, the screw rod, the top plate, the movable plate, the supporting legs and the connecting shaft, the front end of the solar water heater body can drive the connecting shaft to rotate on the supporting legs, thereby adjusting the inclination angle of the solar water heater body and achieving the angle adjustment effect of the solar water heater body; BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the support tube structure of the present invention; Figure 3 It is a left schematic view of the water outlet pipe structure of the present invention; Figure 4 It is a schematic diagram of the storage box structure of the present invention; Figure 5 for Figure 2 Schematic diagram of the local structure of A; Figure 6 It is a schematic diagram of the support frame structure of the present invention; Figure 7 for Figure 6 Schematic diagram of the local structure of B; Figure 8 It is a structural schematic diagram of the present invention; Fig. 9 It is a schematic diagram of the support ring structure of the present invention; Fig.10 It is a schematic diagram of the connecting pipe structure of the present invention; Fig.11 for Fig.10 Schematic diagram of the local structure of C; Fig.12 It is a schematic diagram of the support tube structure of the present invention.

[0017] In the figure: 1. solar water heater body; 2. water storage tank; 3. heat collecting tube; 4. support frame; 5. reflection mechanism; 6. cleaning mechanism; 7. angle adjustment mechanism; 8. support leg; 9. sealing plate; 10. annular groove; 11. movable rod; 12. photon sensor; 13. support tube; 14. storage tank; 15. mounting block; 16. support cylinder; 17. valve; 18. ultrasonic generator; 19. baffle; 20. connecting shaft; 21. water outlet pipe; 22. discharge valve; 23. support plate; 24. electronic scale; 25. support block; 26. first electric push rod; 27. rotating seat; 28. water pump; 29. ​​nozzle; 30. gear ring; 31. rack; 32. second electric push rod ; 33. Sealing ring; 34. Connecting frame; 35. Connecting hole; 36. Connecting block; 37. Drain valve; 38. Drain pipe; 39. Movable plate; 40. Limiting frame; 41. Top plate; 42. Screw rod; 43. Base; 44. Connecting roller; 45. Bearing seat; 46. Support hole; 47. Limiting block; 48. Limiting column; 49. Mounting box; 50. First bevel gear; 51. Second bevel gear; 52. Driving motor; 53. Third electric push rod; 54. Universal joint; 55. Rotating block; 56. Positioning block; 57. Spring; 58. Reflecting strip; 59. Scraper; 60. Sliding block; 61. Support ring; 62. Slide; 63. Limiting ring; 64. Connecting pipe; 65. Reflecting plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figures 1 to 12, a solar water heater capable of improving energy conversion efficiency, comprising a solar water heater body 1, the solar water heater body 1 comprising a water tank 2, a heat collecting tube 3 and a support frame 4, the support frame 4 being fixedly mounted on one side of the water tank 2, the water tank 2 being used to store hot water, a plurality of heat collecting tubes 3 being mounted between the water tank 2 and the support frame 4, the heat collecting tube 3 being used to absorb the heat collecting tube 3 of sunlight, the water tank 2 and the support frame 4 being able to support the heat collecting tube 3, one end of the heat collecting tube 3 passing through the water tank 2 and extending to the inside of the water tank 2, valves 17 being fixedly mounted on both sides of the water tank 2, the valve 17 on the left side of the water tank 2 being used for water inlet, the valve 17 on the right side of the water tank 2 being used for water outlet, two limiting frames 40 being arranged on the bottom surface of the water tank 2, the internal sliding connection of the limiting frame 40 being provided with a movable plate 39, the top surface of the movable plate 39 being fixedly connected to the outer circular wall surface of the water tank 2, the limiting frame 40 being a U-shaped structure capable of limiting the movement of the movable plate 39; A photon sensor 12 for measuring the angle of sunlight is fixedly installed on the outer circumferential wall of the water storage tank 2, a reflecting mechanism 5 for reflecting sunlight is arranged on the bottom surface of the support frame 4, a cleaning mechanism 6 for cleaning the scale inside the water storage tank 2 is arranged on the outer circumferential wall of the water storage tank 2, and an angle adjustment mechanism 7 for adjusting the tilt angle of the solar water heater body 1 is arranged on the bottom surface of the water storage tank 2; The reflection mechanism 5 includes a baffle 19, which is arranged on the bottom surface of the support frame 4. Two support tubes 16 are installed on both sides of the support frame 4. A mounting block 15 is fixedly installed on the top surface of the support tube 16. One side of the mounting block 15 is fixedly connected to one side of the support frame 4. A sealing plate 9 is slidably connected to the inner circular wall surface of the support tube 16. Mineral oil is poured between the sealing plate 9 and the inner top surface of the support tube 16. The mineral oil expands and squeezes the sealing plate 9 when heated. A spring 57 for resetting the sealing plate 9 is fixedly installed on the inner top surface of the support tube 16. One end of the spring 57 is fixedly connected to the top surface of the sealing plate 9. The bottom surface of the sealing plate 9 is fixedly installed with The movable rod 11 penetrates the support tube 16 and is rotatably connected to the top surface of the baffle 19 through a ball head and a connector. The mineral oil in the support tube 16 on the east or west side of the support frame 4 expands due to heat and squeezes the sealing plate 9. The sealing plate 9 is squeezed and drives the movable rod 11 to move downward. The downward movement of the movable rod 11 causes the east or west side of the baffle 19 to tilt downward. The top surface of the baffle 19 is rotatably connected to a plurality of third electric push rods 53. A plurality of positioning blocks 56 are fixedly installed on the top surface of the baffle 19. A rotating block 55 is fixedly installed on the bottom surface of the third electric push rod 53. The rotating block 55 is rotatably connected to the two positioning blocks 56 through a rotating shaft. The outer circular wall surface of the heat collecting tube 3 is provided with a reflecting plate 65 for reflecting sunlight. Two supporting rings 61 are fixedly sleeved on the outer circular wall surface of the heat collecting tube 3. A slide groove 62 is provided on the outer circular wall surface of the supporting ring 61. Two sliders 60 are fixedly installed on the inner circular wall surface of the reflecting plate 65. The sliders 60 are slidably connected with the slide groove 62. Both the slide groove 62 and the slider 60 are T-shaped. The reflecting plate 65 can slide around the outer wall of the heat collecting tube 3 with the cooperation of the sliders 60, the supporting ring 61 and the slide groove 62. One end of the telescopic shaft of the third electric push rod 53 is rotatably connected with the outer circular wall surface of the reflecting plate 65. A universal joint 54 is installed between the telescopic shaft and the outer circumferential wall of the reflective plate 65. One end of the telescopic shaft of the third electric push rod 53 is rotatably connected to the outer circumferential wall of the reflective plate 65 through the universal joint 54. A plurality of reflective strips 58 are installed on the inner circumferential wall of the reflective plate 65. The reflective strips 58 are triangular and have a rough surface. The plurality of reflective strips 58 can diffusely reflect sunlight, so that the heat collecting tube 3 absorbs more sunlight. Two scrapers 59 for cleaning dust on the heat collecting tube 3 are fixedly installed on the inner circumferential wall of the reflective plate 65. The scrapers 59 are made of heat-resistant rubber and their surfaces are in contact with the outer wall of the heat collecting tube 3. A water pump 28 for conveying water is fixedly installed on the outer circumferential wall of the water tank 2, a connecting pipe 64 is fixedly sleeved on the inner circumferential wall of the water outlet of the water pump 28, a water outlet pipe 21 is rotatably connected to the outer circumferential wall of the connecting pipe 64, a nozzle 29 is fixedly sleeved inside the water outlet pipe 21, the water pump 28 conveys the water inside the water tank 2 to the water outlet pipe 21 through the connecting pipe 64, the water in the water outlet pipe 21 is sprayed out through the nozzle 29 to wash the dust on the heat collecting pipe 3, a gear ring 30 is fixedly sleeved on the outer circumferential wall of the water outlet pipe 21, a rack 31 is meshingly connected on the outer circumferential wall of the gear ring 30, a second electric push rod 32 for driving the rack 31 to move is installed on the outer circumferential wall of the water tank 2 through a connecting piece, one end of the telescopic shaft of the second electric push rod 32 is fixedly connected to one side of the rack 31, a PLC controller is fixedly installed on one end of the water tank 2, and the photon sensor 12, the water pump 28 and the third electric push rod 53 are all electrically connected to the PLC controller; Through the above technical features, by setting the solar water heater body 1, when the solar water heater body 1 is in use, the staff sets the early morning (the specific time period is determined according to actual conditions, and this time needs to be before the sun rises) as the start time of the water pump 28 and the second electric push rod 32 through the PLC controller. When the time set by the staff is reached, the water pump 28 starts to transport the water inside the water storage tank 2 to the inside of the water outlet pipe 21 through the connecting pipe 64 and then sprays it out through the nozzle 29. At the same time, the second electric push rod 32 starts, and the telescopic shaft of the second electric push rod 32 moves back and forth to drive the rack 31 to move back and forth, so that the gear ring 30 rotates back and forth, and the gear ring 30 rotates back and forth to drive the water outlet pipe 21 to swing back and forth around the connecting pipe 64, so that the water sprayed by the nozzle 29 can be sprayed onto multiple heat collecting tubes 3, thereby cleaning the dust on the heat collecting tubes 3 before the sun appears; The sun rises from the east and sets in the west. When the solar water heater body 1 is used in the morning, the sunlight shines from the east side of the solar water heater body 1. The two support tubes 16 on the east side of the support frame 4 are exposed to the sunlight from the east side, and the mineral oil therein will expand due to heat, while the two support tubes 16 on the west side of the support frame 4 are less affected by the light. The thermal expansion of the mineral oil causes the sealing plate 9 to move downward inside the support tube 16. The downward movement of the sealing plate 9 causes the spring 57 to be stretched. The downward movement of the sealing plate 9 will also drive the movable rod 11 to move downward. The downward movement of the two movable rods 11 on the east side causes the east side of the baffle 19 to tilt downward under the action of the ball head. At this time, the third electric push rod 53 on the baffle 19 will tilt toward the west and cause the third electric push rod 53 to drive the rotating block 55 to rotate between the two positioning blocks 56. The photon sensor 12 on the water tank 2 can measure the angle of sunlight. The photon sensor 12 will transmit the measurement data to the PLC controller. After receiving the data, the PLC controller will start the third electric push rod 53. The telescopic axis of the third electric push rod 53 moves outward through the universal joint 54 to drive the reflector 65 to move in the opposite direction of the sunlight on the outer wall of the heat collecting tube 3. The movement of the reflector 65 drives the slider 60 to slide inside the slide groove 62 on the support ring 61. The slider 60 and the slide groove 62 can limit the movement of the reflector 65. The reflection plate 65 moves along the outer wall of the heat collecting tube 3, driving the two scrapers 59 to move along the outer wall of the heat collecting tube 3. The scrapers 59 will scrape off the dust on the heat collecting tube 3, further cleaning the dust on the heat collecting tube 3. After the reflection plate 65 is moved to the opposite direction of the sunlight, the reflection plate 65 can reflect the sunlight, and the multiple reflection strips 58 on the inner wall of the reflection plate 65 increase the reflection area of ​​the sunlight through diffuse reflection, so that the other side of the heat collecting tube 3 opposite to the sunlight can also absorb the sunlight, thereby increasing the total amount of sunlight absorbed by the heat collecting tube 3; At noon, the sun is in the south, and the support tubes 16 on the east and west sides of the support frame 4 are irradiated by sunlight from the south, and the mineral oil therein will expand due to heat. At this time, the expansion degree of the mineral oil in the multiple support tubes 16 is similar, so that the baffle 19 moves downward in an inclined manner. At the same time, the reflector 65 moves to the right below the heat collecting tube 3 in the opposite direction of the sunlight under the cooperation of the photon sensor 12 and the third electric push rod 53, so that the reflector 65 cooperates with the multiple reflective strips 58 to reflect the sunlight, so that the lower bottom surface of the heat collecting tube 3 (opposite to the direction of the sunlight) can also absorb the sunlight; In the afternoon, the sun gradually moves from the south to the west, and the two support tubes 16 on the west side of the support frame 4 are irradiated by the sunlight from the west. At this time, the mineral oil in the two support tubes 16 on the west side will expand due to heat (the sealing plate 9 and the movable rod 11 in the east support tube 16 are reset under the action of the spring 57). The mineral oil expands due to heat, so that the sealing plate 9 drives the movable rod 11 to move downward, and the two movable rods 11 on the west side move downward, so that the west side of the baffle 19 tilts downward under the action of the ball head, and the third electric push rod 53 tilts to the east. After measuring the angle of the sunlight, the photon sensor 12 will start the third electric push rod 53. The third electric push rod 53 makes the reflector 65 rotate on the heat collecting tube 3 until it is at the opposite angle to the sunlight from the west and continues to cooperate with the reflective strip 58 to reflect the sunlight. The movement of the reflector 65 on the heat collecting tube 3 will also further clean the dust on the heat collecting tube 3, so that the heat collecting tube 3 can absorb more sunlight in the afternoon. During this process, the reflective plate 65 always maintains a direction opposite to the sunlight under the action of the third electric push rod 53 and the photon sensor 12, so that the heat collecting tube 3 absorbs more sunlight under the reflection of the reflective plate 65. At the same time, the dust on the heat collecting tube 3 can be cleaned to prevent the dust from affecting the heat collecting tube 3 in absorbing sunlight, thereby achieving the effect of reflecting sunlight, improving the energy conversion rate of the solar water heater body 1 to solar energy, and making it easier for the staff to use the solar water heater body 1.

[0020] Example 2: Please refer to Figures 1 to 11 , a solar water heater capable of improving energy conversion efficiency, which differs from Example 1 in that an annular groove 10 is provided on the outer circumferential wall surface of a connecting pipe 64, a limiting ring 63 for limiting the rotation of the water outlet pipe 21 is fixedly sleeved on the inner circumferential wall surface of the water outlet pipe 21, the limiting ring 63 is rotatably connected to the annular groove 10, the water outlet pipe 21 rotates around the connecting pipe 64 to drive the limiting ring 63 to rotate inside the annular groove 10, and the limiting ring 63 cooperates with the annular groove 10 to limit the rotation of the water outlet pipe 21; A connecting frame 34 is fixedly installed on one side of the water tank 2, a connecting block 36 is fixedly installed on one side of the rack 31, and a connecting hole 35 for sliding the connecting block 36 is opened on one side of the connecting frame 34, and the connecting block 36 is slidably connected to the connecting hole 35; Specifically, the outlet pipe 21 is provided, and the outlet pipe 21 rotates around the connecting pipe 64 so that the limiting ring 63 rotates inside the annular groove 10 on the connecting pipe 64, thereby limiting the rotation of the outlet pipe 21 to prevent the outlet pipe 21 from falling off the connecting pipe 64. The rack 31 is provided, and the rack 31 moves to drive the connecting block 36 to move inside the connecting hole 35 on the connecting frame 34. The connecting block 36 can limit the movement of the rack 31, thereby achieving a limiting effect on the rack 31. The cleaning mechanism 6 includes a support tube 13, which is fixedly mounted on the outer circumferential wall of the water storage tank 2. The bottom surface of the support tube 13 is rotatably connected to a support plate 23 through a hinge. An electronic scale 24 for weighing detergent is fixedly mounted on the top surface of the support plate 23. Two first electric push rods 26 are rotatably connected to one side of the interior of the support tube 13. One end of the telescopic shaft of the first electric push rod 26 is rotatably connected to the support plate 23. A plurality of support blocks 25 are fixedly mounted on both sides of the interior of the support tube 13. Every two support blocks 25 are rotatably connected to the first electric push rod 26 through a rotating shaft. Two rotating seats 27 are fixedly mounted on the top surface of the support plate 23. The rotating seats 27 are rotatably connected to the telescopic shaft of the first electric push rod 26 through a pin. A storage box 14 for storing detergent is fixedly mounted on the top surface of the support tube 13. A feed pipe is fixedly installed on the top surface of the storage box 14, and the outer circumferential wall of the feed pipe is threadedly connected to a movable cover. The detergent is used to clean the scale inside the water storage tank 2. A discharge valve 22 for discharge is fixedly installed on the bottom surface of the storage box 14. The detergent stored inside the storage box 14 enters the support pipe 13 through the discharge valve 22 and falls on the support plate 23. The staff rotates the support plate 23 downward through the first electric push rod 26 to allow the detergent to enter the water storage tank 2 at the same time. An ultrasonic generator 18 is fixedly installed at one end of the water storage tank 2. The ultrasonic generator 18 emits ultrasonic waves to vibrate the water inside the water storage tank 2, and the scale falls off from the inner wall of the water storage tank 2 with the cooperation of the detergent. The ultrasonic generator 18, the discharge valve 22, the electronic scale 24 and the first electric push rod 26 are all electrically connected to the PLC controller; Specifically, through the storage box 14, the staff stores the detergent inside the storage box 14 and sets a predetermined weight for the electronic scale 24 in advance. The staff sets the discharge valve 22 to start at a certain time interval through the PLC controller (the specific time depends on the local water quality). The discharge valve 22 is started so that the detergent inside the storage box 14 falls on the support plate 23. The electronic scale 24 on the support plate 23 can weigh the detergent. When the detergent reaches the predetermined weight, the PLC controller will close the discharge valve 22. At the same time, the first electric push rod 26 is started, and the telescopic axis of the first electric push rod 26 moves outward through the rotating seat 27 to drive the support plate 23 to rotate downward while causing the first electric push rod 26 to rotate around the two support blocks 25. The support plate 23 rotates downward so that the detergent on the support plate 23 enters the interior of the water tank 2, and the ultrasonic generator 18 emits an ultrasonic wave to make the water inside the water tank 2 oscillate. The water oscillation inside the water tank 2 cooperates with the detergent to make the scale attached to the inner wall of the water tank 2 fall off, thereby cleaning the scale on the inner wall of the water tank 2.

[0021] Example 3: Please refer to Figure 1 to Figure 7, a solar water heater capable of improving energy conversion efficiency, which differs from embodiment 1 in that a drain valve 37 for draining sewage is fixedly installed on the outer circumferential wall of the water storage tank 2, a drain pipe 38 is fixedly sleeved on the inner circumferential wall of the drain valve 37, and the drain valve 37 is electrically connected to the PLC controller; Specifically, through the water tank 2, the scale falling off the inner wall of the water tank 2 will fall into the inside of the water tank 2. The staff starts the drain valve 37, and the drain valve 37 is opened so that the scale and water inside the water tank 2 are discharged through the drain valve 37 and the drain pipe 38, thereby achieving the sewage discharge effect of the water tank 2. The angle adjustment mechanism 7 includes a base 43, which is arranged on the outer circumferential wall of the water storage tank 2. The bottom surface of the limiting frame 40 is fixedly connected to the outer circumferential wall of the base 43. A top plate 41 is fixedly installed on one side of the movable plate 39. Two installation boxes 49 are fixedly installed on the top surface of the base 43. The top surface of the installation box 49 is rotatably connected with a screw rod 42 through a bearing. A first bevel gear 50 is fixedly installed on the bottom surface of the screw rod 42. The screw rod 42 is threadedly connected to the top plate 41. A driving motor 52 is fixedly installed on the top surface of the base 43. A connecting roller 44 is fixedly installed on one end of the driving shaft of the driving motor 52. The connecting roller 44 passes through the two installation boxes 49 and is rotatably connected to the installation box 49 through a bearing. Two second bevel gears 51 are fixedly sleeved on the outer circumferential wall of the connecting roller 44, and the second bevel gear 51 is meshed with the first bevel gear 50. A bearing seat 45 is fixedly installed on the top surface of the base 43, and the outer circumferential wall surface of the connecting roller 44 is rotatably connected to the inner circumferential wall surface of the bearing seat 45. The bearing seat 45 can support the connecting roller 44. The driving shaft of the driving motor 52 rotates to drive the connecting roller 44 to rotate. The connecting roller 44 drives the screw rod 42 to rotate through the cooperation of the second bevel gear 51 and the first bevel gear 50. The screw rod 42 rotates so that the top plate 41 drives the movable plate 39 to move downward. The downward movement of the movable plate 39 drives the rear end of the solar water heater body 1 to move downward. The support legs 8 are rotatably connected to both sides of the support frame 4. The connecting shaft 20 is fixedly installed on both sides of the support frame 4. The connecting shaft 20 is rotatably connected to the supporting legs 8. The rear end of the solar water heater body 1 moves downward so that the front end of the solar water heater body 1 drives the connecting shaft 20 to rotate on the supporting legs 8, thereby adjusting the inclination angle of the solar water heater body 1. The driving motor 52 is electrically connected to the PLC controller; Specifically, through the solar water heater body 1, after the solar water heater body 1 is installed, the staff starts the driving motor 52, the driving shaft of the driving motor 52 rotates to drive the connecting roller 44 to rotate, the connecting roller 44 rotates to drive the second bevel gear 51 to rotate, the second bevel gear 51 rotates to drive the first bevel gear 50 to rotate, the first bevel gear 50 rotates to drive the screw rod 42 to rotate, the screw rod 42 rotates to make the top plate 41 drive the movable plate 39 to move downward along the screw rod 42, the movable plate 39 moves downward to drive the rear end of the solar water heater body 1 to move downward, and at the same time, the front end of the solar water heater body 1 drives the connecting shaft 20 to rotate on the supporting leg 8, thereby adjusting the inclination angle of the solar water heater body 1, and achieving the angle adjustment effect of the solar water heater body 1; A support hole 46 for sliding the movable plate 39 is provided on one side of the limiting frame 40. A limiting block 47 is fixedly installed on one side of the movable plate 39. A limiting column 48 is fixedly installed inside the supporting hole 46. The limiting column 48 can limit the movement of the limiting block 47. The limiting block 47 is slidably connected to the limiting column 48. Specifically, by setting the movable plate 39, the movable plate 39 moves downward to drive the limiting block 47 to move downward along the limiting column 48 inside the support hole 46 on the limiting frame 40, and the limiting block 47 and the limiting column 48 can limit the movement of the movable plate 39, thereby achieving a limiting effect on the movable plate 39; A sealing ring 33 is fixedly installed on the bottom surface of the support tube 16 for sealing. The sealing ring 33 can improve the sealing performance of the support tube 16 and prevent the mineral oil inside the support tube 16 from leaking. The outer circular wall surface of the movable rod 11 is movably connected with the inner circular wall surface of the sealing ring 33. Through the setting of the sealing ring 33, the sealing ring 33 can reduce the gap between the movable rod 11 and the support tube 16, thereby improving the sealing performance of the support tube 16 and preventing the mineral oil inside the support tube 16 from leaking.

[0022] Working principle: through the solar water heater body 1, the multiple heat collecting tubes 3 on the solar water heater body 1 can absorb sunlight. The heat collecting tube 3 uses the principle that hot water floats and cold water sinks to make the water produce microcirculation and continuously heat the water inside the water storage tank 2. The sun rises from the east and sets in the west. The photon sensor 12 can measure the angle of sunlight. In the morning, the two support tubes 16 on the east side are irradiated by sunlight, so that the baffle 19 tilts downward with the cooperation of the sealing plate 9 and the movable rod 11 on the east side, and the third electric push rod 53 on the baffle 19 will tilt to the west. The telescopic shaft of the third electric push rod 53 moves outward to drive the reflective plate 65 to move outward along the heat collecting tube 3 until the reflective plate 65 is moved to a position opposite to the sunlight. The reflective plate 65 can reflect sunlight, so that the area on the heat collecting tube 3 opposite to the direction of the sunlight can also absorb sunlight. At noon, the mineral oil in the support tubes 16 on the east and west sides expands to the same extent. At this time, the reflective plate 65 is located directly below the heat collecting tube 3, and the position of the reflective plate 65 changes again in the afternoon. Secondly, the staff drives the connecting roller 44 to rotate through the driving motor 52, and the connecting roller 44 drives the screw rod 42 to rotate through the second bevel gear 51 and the first bevel gear 50. The screw rod 42 rotates so that the rear end of the solar water heater body 1 moves downward and the front end of the solar water heater body 1 rotates around the supporting leg 8, thereby adjusting the tilt angle of the solar water heater body 1; Finally, after long-term use, scale will form on the inner wall of the water tank 2. The staff allows the support plate 23 to flip downward under the action of the first electric push rod 26, so that the detergent in the storage box 14 can enter the interior of the water tank 2 in a quantitative manner, and then cooperate with the ultrasonic wave generated by the ultrasonic generator 18 to make the scale on the inner wall of the water tank 2 fall off, thereby cleaning the scale on the inner wall of the water tank 2.

[0023] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A solar water heater capable of improving energy conversion efficiency, characterized in that: include: A solar water heater body (1), the solar water heater body (1) comprising a water tank (2), a heat collecting tube (3) and a support frame (4), the support frame (4) being fixedly mounted on one side of the water tank (2), a plurality of the heat collecting tubes (3) being mounted between the water tank (2) and the support frame (4), valves (17) being fixedly mounted on both sides of the water tank (2), two limiting frames (40) being arranged on the bottom surface of the water tank (2), a movable plate (39) being slidably connected inside the limiting frames (40), a photon sensor (12) for measuring the angle of sunlight being fixedly mounted on the outer circular wall surface of the water tank (2), a reflecting mechanism (5) for reflecting sunlight being arranged on the bottom surface of the support frame (4), a cleaning mechanism (6) for cleaning scale inside the water tank (2) being arranged on the outer circular wall surface of the water tank (2), and an angle adjusting mechanism (7) for adjusting the tilt angle of the solar water heater body (1) being arranged on the bottom surface of the water tank (2).

2. A solar water heater capable of improving energy conversion efficiency according to claim 1, characterized in that: The reflection mechanism (5) comprises a baffle (19), two support tubes (16) are installed on both sides of the support frame (4), the inner circular wall surface of the support tube (16) is slidably connected with a sealing plate (9), mineral oil is poured between the sealing plate (9) and the inner top surface of the support tube (16), a spring (57) for resetting the sealing plate (9) is fixedly installed on the inner top surface of the support tube (16), a movable rod (11) is fixedly installed on the bottom surface of the sealing plate (9), the movable rod (11) is rotatably connected to the top surface of the baffle (19), the top surface of the baffle (19) is rotatably connected with a plurality of third electric push rods (53), the outer circular wall surface of the heat collecting tube (3) is provided with a reflection plate (65) for reflecting sunlight, one end of the telescopic shaft of the third electric push rod (53) is rotatably connected to the outer circular wall surface of the reflection plate (65), The inner circular wall surface of the reflecting plate (65) is provided with a plurality of reflecting strips (58), the reflecting strips (58) are triangular and have a rough surface, the inner circular wall surface of the reflecting plate (65) is provided with two scrapers (59) for cleaning dust on the heat collecting tube (3), the outer circular wall surface of the water storage tank (2) is provided with a water pump (28) for conveying water, the inner circular wall surface of the water outlet hole of the water pump (28) is fixedly sleeved with a connecting pipe (64), the outer circular wall surface of the connecting pipe (64) is rotatably connected with a water outlet pipe (21), the interior of the water outlet pipe (21) is fixedly sleeved with a nozzle (29), the outer circular wall surface of the water outlet pipe (21) is fixedly sleeved with a gear ring (30), the outer circular wall surface of the gear ring (30) is meshingly connected with a rack (31), and the outer circular wall surface of the water storage tank (2) is provided with a second electric push rod (32) for driving the rack (31) to move.

3. A solar water heater capable of improving energy conversion efficiency according to claim 2, characterized in that: An annular groove (10) is formed on the outer circumferential wall surface of the connecting pipe (64); a limiting ring (63) for limiting the rotation of the water outlet pipe (21) is fixedly sleeved on the inner circumferential wall surface of the water outlet pipe (21); the limiting ring (63) is rotatably connected to the annular groove (10); a connecting frame (34) is fixedly mounted on one side of the water storage tank (2); a connecting block (36) is fixedly mounted on one side of the rack (31); a connecting hole (35) for providing the connecting block (36) with sliding movement is formed on one side of the connecting frame (34); the connecting block (36) is slidably connected to the connecting hole (35).

4. A solar water heater capable of improving energy conversion efficiency according to claim 1, characterized in that: The cleaning mechanism (6) comprises a support tube (13), the bottom surface of the support tube (13) is rotatably connected to a support plate (23), the top surface of the support plate (23) is fixedly mounted with an electronic scale (24) for weighing detergent, one side of the interior of the support tube (13) is rotatably connected to two first electric push rods (26), one end of a telescopic shaft of the first electric push rod (26) is rotatably connected to the support plate (23), a storage box (14) for storing detergent is fixedly mounted on the top surface of the support tube (13), a discharge valve (22) for discharge is fixedly mounted on the bottom surface of the storage box (14), and an ultrasonic generator (18) is fixedly mounted on one end of the water storage tank (2).

5. A solar water heater capable of improving energy conversion efficiency according to claim 4, characterized in that: A sewage discharge valve (37) for sewage discharge is fixedly mounted on the outer circular wall surface of the water storage tank (2), and a sewage discharge pipe (38) is fixedly sleeved on the inner circular wall surface of the sewage discharge valve (37).

6. A solar water heater capable of improving energy conversion efficiency according to claim 1, characterized in that: The angle adjustment mechanism (7) comprises a base (43), the base (43) being arranged on the outer circumferential wall surface of the water storage tank (2), a top plate (41) being fixedly mounted on one side of the movable plate (39), two installation boxes (49) being fixedly mounted on the top surface of the base (43), a screw rod (42) being rotatably connected to the top surface of the installation box (49), a first bevel gear (50) being fixedly mounted on the bottom surface of the screw rod (42), the screw rod (42) being threadedly connected to the top plate (41), a driving motor (52) being fixedly mounted on the top surface of the base (43), a connecting roller (44) being fixedly mounted on one end of a driving shaft of the driving motor (52), two second bevel gears (51) being fixedly sleeved on the outer circumferential wall surface of the connecting roller (44), the second bevel gears (51) being meshed with the first bevel gear (50), and support legs (8) being rotatably connected to both sides of the support frame (4).

7. A solar water heater capable of improving energy conversion efficiency according to claim 1, characterized in that: A support hole (46) for sliding the movable plate (39) is provided on one side of the limiting frame (40), a limiting block (47) is fixedly mounted on one side of the movable plate (39), a limiting column (48) is fixedly mounted inside the supporting hole (46), and the limiting block (47) is slidably connected to the limiting column (48).

8. A solar water heater capable of improving energy conversion efficiency according to claim 2, characterized in that: A sealing ring (33) for sealing is fixedly mounted on the bottom surface of the support tube (16), and the outer circular wall surface of the movable rod (11) is movably sleeved with the inner circular wall surface of the sealing ring (33).

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