A photovoltaic-thermal hybrid solar collector

Abstract

The application relates to a photovoltaic-thermal hybrid solar collector in the technical field of solar energy collection, which comprises a mounting frame structure, the mounting frame structure comprises a support frame, a swing frame is arranged on the support frame, and water tanks are arranged at the two ends of the swing frame; a plurality of collecting structures are linearly arranged on the mounting frame structure in the water tank axis direction, the collecting structure comprises a reflecting cover arranged on the swing frame, a heat collecting pipe arranged in the reflecting cover is fixedly connected to the reflecting cover, the two ends of the heat collecting pipe penetrate into the water tanks, and a heating plate is arranged on the side of the reflecting cover away from the heat collecting pipe; the driving mechanism which can drive the reflecting cover to rotate is further arranged, and the photovoltaic and photothermal integration can be realized.

Description

Technical Field

[0001] This invention relates to the field of solar energy collection technology, specifically to a photovoltaic-thermal hybrid solar energy collector. Background Technology

[0002] Currently, photovoltaic and solar thermal solar energy collection is generally carried out separately. Photovoltaic panels generate electricity, while solar collectors collect heat through collector tubes, thereby achieving heat collection.

[0003] However, at present, there is no equipment that can simultaneously generate solar thermal and photovoltaic power. Summary of the Invention

[0004] The technical problem of the present invention is to provide a photovoltaic-thermal hybrid solar collector that can realize the integration of photovoltaic and solar thermal energy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic-thermal hybrid solar collector, comprising a mounting frame structure, wherein the mounting frame structure includes a support frame, a swing frame is provided on the support frame, and water tanks are provided at both ends of the swing frame; The mounting frame structure has multiple collection structures arranged in a linear array along the axis of the water tank. Each collection structure includes a reflector mounted on the swing frame. A heat collection tube is fixedly connected to the reflector and is located inside the reflector. Both ends of the heat collection tube extend into the water tank. A heating plate is provided on the side of the reflector away from the heat collection tube. It also includes a drive mechanism that can drive the reflector to rotate.

[0006] As a further embodiment of the present invention, the driving mechanism includes a slot formed on the swing frame, a synchronous pulley is provided on the portion of the heat collection tube located in the slot, a synchronous belt is provided in the slot and all synchronous pulleys are connected in a transmission connection, and a second geared motor for driving the synchronous belt to rotate is fixedly connected to the swing frame.

[0007] As a further embodiment of the present invention, a rotating shaft is rotatably connected to the support frame, the rotating shaft is fixedly connected to the swing frame, and a reduction motor for driving the rotating shaft to rotate is fixedly connected to the support frame.

[0008] As a further embodiment of the present invention, the collection structure further includes a cleaning mechanism, the cleaning structure including a counterweight frame sleeved on the reflector, the counterweight frame being provided with a rubber scraper for cleaning the outer wall of the heat collection tube, the surface of the heating plate, and the inner wall of the reflector, and the reflector having a slag discharge port.

[0009] As a further embodiment of the present invention, the cleaning mechanism further includes a rinsing mechanism, the rinsing mechanism including a water box fixedly connected inside the water tank, a sliding rod slidably connected to the water box, the sliding rod extending through the water tank, and a water discharge rod connected to one end of the sliding rod outside the water tank.

[0010] As a further embodiment of the present invention, the counterweight frame is also provided with a reversing mechanism. Two sets of the reversing mechanism are symmetrically arranged on the counterweight frame, including a piston cylinder fixedly connected to the counterweight frame, a piston plate slidably connected inside the piston cylinder, a pull rope fixedly connected to the piston plate, a connecting rod fixedly connected to the upper end of the pull rope, and a rubber scraper fixedly connected to the lower end of the pull rope.

[0011] As a further embodiment of the present invention, a mounting base is hinged to the counterweight frame, a reversing rod is slidably connected to the mounting base, a sliding plate is slidably connected to the mounting base, a spring is provided on the mounting base to make the sliding plate abut against the reversing rod, and a V-shaped bracket is provided at the end of the reversing rod away from the mounting base.

[0012] As a further embodiment of the present invention, a fixed rod is fixedly connected to all the sliding rods, a triangular block is fixedly connected to the fixed rod, a spring is provided on the sliding rod to move the sliding rod out of the water tank, a water inlet is provided on the water box, a water baffle is slidably connected on the water box at the position of the water inlet, and a spring is provided on the water box to reset the water baffle to the side of the water inlet.

[0013] Compared with the prior art, the beneficial effects of the present invention are: Equipped with a heating plate and heat collection tubes, it can absorb solar heat and generate photovoltaic power. It only requires the rotation and switching of all reflectors by driving the second geared motor. At the same time, the reflectors can greatly improve the heat collection efficiency, especially in winter or on cloudy or rainy days. In addition, the cooperation of the first geared motor and the second geared motor can also track sunlight and improve the effect of collecting light energy.

[0014] The rotation of the swing frame allows the counterweight to slide on the reflector under gravity, and the rubber scraper cleans the surface. The rubber scraper automatically switches direction each time the counterweight moves to the two ends of the reflector, ensuring that the rubber scraper stays in contact with the reflector and heating plate, thus guaranteeing effective cleaning.

[0015] The water tank also has a water box that automatically fills with water after the counterweight frame finishes moving to one end. Then, it rinses the counterweight frame when it is scraped, which can further improve the cleaning effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from an upward perspective; Figure 3 This is a schematic diagram of the internal structure of the water tank of the present invention; Figure 4 This is a schematic diagram of the water-blocking block portion of the present invention; Figure 5 This is a schematic diagram of the counterweight frame of the present invention; Figure 6 This is a schematic diagram of the counterweight frame of the present invention from a side view. Figure 7 This is a schematic diagram of the cross-sectional structure of the commutator section of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 01. Support frame; 02. Gear motor one; 03. Gear motor two; 04. Water tank; 05. Swing frame; 06. Reflector; 07. Heat collector tube; 08. Rotating shaft; 09. Slotted section; 10. Synchronous pulley; 11. Heating plate; 12. Counterweight frame; 13. Sliding rod; 14. Water box; 15. Water baffle; 16. Water discharge rod; 17. Water inlet; 18. Triangular block; 19. Rubber scraper; 20. Pull rope; 21. Piston cylinder; 22. Connecting rod; 23. Slag discharge port; 24. V-shaped frame; 25. Mounting base; 26. Piston plate; 27. Reversing rod; 28. Sliding plate; 29. ​​Fixing rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 7 The present invention provides a technical solution: a photovoltaic-thermal hybrid solar collector, including a mounting frame structure, the mounting frame structure including a support frame 01, a swing frame 05 is provided on the support frame 01, and water tanks 04 are provided at both ends of the swing frame 05; Multiple collection structures are arranged in a linear array along the axis of the water tank 04 on the mounting frame structure. The collection structure includes a reflector 06 set on the swing frame 05. A heat collection tube 07 is fixedly connected to the reflector 06 and is set inside the reflector 06. Both ends of the heat collection tube 07 extend into the water tank 04. A heating plate 11 is set on the side of the reflector 06 away from the heat collection tube 07. It also includes a drive mechanism that can drive the reflector 06 to rotate.

[0021] As a further embodiment of the present invention, the driving mechanism includes a slot 09 formed on the swing frame 05, a synchronous pulley 10 is provided on the portion of the heat collection tube 07 located in the slot 09, a synchronous belt is provided in the slot 09 and all the synchronous pulleys 10 are connected in transmission, and a reduction motor 2 03 for driving the synchronous belt to rotate is fixedly connected to the swing frame 05.

[0022] As a further embodiment of the present invention, a rotating shaft 08 is rotatably connected to the support frame 01, the rotating shaft 08 is fixedly connected to the swing frame 05, and a reduction motor 02 for driving the rotating shaft 08 to rotate is fixedly connected to the support frame 01.

[0023] As a further embodiment of the present invention, the collection structure also includes a cleaning mechanism. The cleaning mechanism includes a counterweight frame 12 fitted on the reflector 06. The counterweight frame 12 is provided with a rubber scraper 19 for cleaning the outer wall of the heat collection tube 07, the surface of the heating plate 11, and the inner wall of the reflector 06. A slag discharge port 23 is provided on the reflector 06.

[0024] As a further embodiment of the present invention, the cleaning mechanism also includes a rinsing mechanism, which includes a water box 14 fixedly connected inside the water tank 04, a sliding rod 13 slidably connected to the water box 14, the sliding rod 13 extending through the water tank 04, and a water discharge rod 16 connected to one end of the sliding rod 13 outside the water tank 04.

[0025] As a further embodiment of the present invention, the counterweight frame 12 is also provided with a reversing mechanism. Two sets of reversing mechanisms are symmetrically arranged on the counterweight frame 12, including a piston cylinder 21 fixedly connected to the counterweight frame 12, a piston plate 26 slidably connected inside the piston cylinder 21, a pull rope 20 fixedly connected to the piston plate 26, a connecting rod 22 fixedly connected to the upper end of the pull rope 20, and a rubber scraper 19 fixedly connected to the lower end of the pull rope 20.

[0026] As a further embodiment of the present invention, a mounting base 25 is hinged to the counterweight frame 12, a reversing rod 27 is slidably connected to the mounting base 25, a sliding plate 28 is slidably connected to the mounting base 25, a spring is provided on the mounting base 25 to make the sliding plate 28 abut against the reversing rod 27, and a V-shaped bracket 24 is provided at the end of the reversing rod 27 away from the mounting base 25.

[0027] As a further embodiment of the present invention, a fixed rod 29 is fixedly connected to all the sliding rods 13, and a triangular block 18 is fixedly connected to the fixed rod 29. A spring is provided on the sliding rod 13 to move the sliding rod 13 outward from the water tank 04. A water inlet 17 is provided on the water box 14, and a water blocking block 15 is slidably connected on the water box 14 at the position of the water inlet 17. A spring is provided on the water box 14 to reset the water blocking block 15 towards the water inlet 17.

[0028] Working principle: Photovoltaic power generation can be achieved through the heating plate 11, and heat can be absorbed through the heat collection tube 07. Since both ends of the heat collection tube 07 extend into the water tank 04, the heat absorbed by the heat collection tube 07 will heat the water in the water tank 04 through both ends of the heat collection tube 07, thereby achieving the effect of integrated photovoltaic and thermal collection, which is more practical. Because the reflector 06 is domed and has a reflective glass structure, it can collect more sunlight, which is then reflected and concentrated onto the heat collector 07 to heat the heat collector 07. Compared with the traditional method of directly collecting light and heat through the heat collector 07, this method can greatly improve the heating efficiency of the heat collector 07 and is better suited to winter and rainy days. In addition, to improve light collection efficiency, it is necessary to adapt to the ever-changing sunlight. Therefore, a geared motor 1 02 and a geared motor 2 03 are installed. When the geared motor 1 02 is working, it can drive the swing frame 05 to rotate on the support frame 01 via the rotating shaft 08. At the same time, the geared motor 2 03 will drive all the reflectors 06 and the heat pipes 07 to rotate around the axis via the synchronous belt. Therefore, the geared motor 2 03 and the geared motor 1 02 can work together to adjust the angle of light collection of the heating plate 11 or the reflector 06, thereby ensuring the effect of sufficient light collection. In addition, the geared motor 2 03 can also switch the heating plate 11 or the heat collection pipe 07 for collection. The heat collection pipe 07 can be rotated to the back to stop heat storage. The functions are more complete and the adaptation is more convenient. After prolonged outdoor use, dust easily accumulates on the surface of the heating plate 11 and inside the reflector 06. In particular, the reflector 06 has a concave structure, which makes it easier to accumulate dust and other large debris, so it needs to be cleaned regularly. When cleaning is required, the swing frame 05 can be rotated around the axis of the rotating shaft 08 by the geared motor 02, thereby adjusting the angle of the swing frame 05 on the support frame 01 and the height angle of the two water tanks 04. When the swing frame 05 rotates to the point where one of the water tanks 04 is at the bottom, under the action of gravity, since the counterweight frame 12 is sleeved on the outside of the reflector 06 and connected by pulleys, the friction is small. Under the action of gravity, the counterweight frame 12 will slide downward towards the lower water tank 04. At this time, the rubber scraper 19 can scrape and clean the inner wall of the reflector 06, the outer wall of the heat collection tube 07, and the surface of the heating plate 11, achieving a cleaning effect. As the geared motor 02 drives the swing frame 05 to swing and rotate, the height of the two water tanks 04 swings alternately. Therefore, the counterweight frame 12 will slide back and forth on the reflector 06 from one end to the other, achieving effective cleaning. To further improve the cleaning effect, when the counterweight frame 12 slides on the reflector 06, whenever the counterweight frame 12 moves to both ends of the reflector 06, the V-shaped frame 24 on the counterweight frame 12 is pushed by the water discharge rod 16. First, the reversing rod 27 slides downward and retracts on the mounting base 25, and then the V-shaped frame 24 moves in the opposite direction, such as... Figure 7 In the process, the V-shaped frame 24 will move to the left after being pushed by the water discharge rod 16. At the same time, the reversing rod 27 and the mounting base 25 will also move, moving to the symmetrical state shown in the figure. At this time, as the reversing rod 27 changes sides, the left pull rope 20 of the reversing rod 27 will be released downwards, while pulling the right pull rope 20 upwards, thereby pulling the rubber scraper 19 to switch to the right side. As the counterweight frame 12 reciprocates on the reflector 06, the rubber scraper 19 can continuously switch the tilt direction, and the tilt direction is opposite to the movement direction of the counterweight frame 12, thereby ensuring that the rubber scraper 19 can always stick tightly to the inner wall of the reflector 06 or the surface of the heating plate 11, thus ensuring the cleaning effect. When the counterweight frame 12 moves, the water discharge rod 16 is simultaneously pushed, causing the sliding rod 13 to move towards the water tank 04. As the sliding rod 13 moves, the fixing rod 29 moves in the opposite direction towards the water box 14. The fixing rod 29 then drives the triangular block 18 to push the water-blocking block 15 to slide, preventing it from blocking the inlet 17. At this point, the water tank 04 on this side is positioned below, allowing water to flow into the water box 14. Subsequently, when the swing frame 05 moves, the counterweight frame 12 disengages from the water discharge rod 16. Under the action of the spring, the water-blocking block 15 and the sliding rod 13 are reset, so the water-blocking block 15 will continue to block the water inlet 17. At this time, by rotating the swing frame 05, the water box 14 on the side filled with water is at the highest point. Therefore, the water in the water box 14 can automatically flow through the sliding rod 13 to the water discharge rod 16 and then to the reflector 06 or the heating plate 11 to rinse the reflector 06 or the heating plate 11. The cleaning effect can be further improved by scraping with the rubber scraper 19. In addition, when not in use, the counterweight frame 12 can be fixed on the reflector 06 with bolts or pins and will not move.

Claims

1. A photovoltaic-thermal hybrid solar collector, comprising a mounting frame structure, characterized in that: The mounting frame structure includes a support frame (01), on which a swing frame (05) is provided, and at both ends of the swing frame (05) a water tank (04). The mounting frame structure has multiple collection structures arranged in a linear array along the axis of the water tank (04). Each collection structure includes a reflector (06) on the swing frame (05). A heat collection tube (07) is fixedly connected to the reflector (06) and is located inside the reflector (06). Both ends of the heat collection tube (07) extend into the water tank (04). A heating plate (11) is provided on the side of the reflector (06) away from the heat collection tube (07). It also includes a drive mechanism that can drive the reflector (06) to rotate; The drive mechanism includes a slot (09) opened on the swing frame (05), and a synchronous pulley (10) is provided on the part of the heat collection tube (07) located in the slot (09). A synchronous belt is provided in the slot (09) and all the synchronous pulleys (10) are connected in a transmission. A second geared motor (03) for driving the synchronous belt to rotate is fixedly connected on the swing frame (05). A rotating shaft (08) is rotatably connected to the support frame (01), and the rotating shaft (08) is fixedly connected to the swing frame (05). A geared motor (02) for driving the rotating shaft (08) to rotate is fixedly connected to the support frame (01). The collection structure also includes a cleaning mechanism, which includes a counterweight frame (12) fitted on the reflector (06). The counterweight frame (12) is equipped with a rubber scraper (19) for cleaning the outer wall of the heat collection tube (07), the surface of the heating plate (11), and the inner wall of the reflector (06). The reflector (06) is provided with a slag discharge port (23). The cleaning mechanism also includes a rinsing mechanism, which includes a water box (14) fixedly connected inside the water tank (04), a sliding rod (13) slidably connected to the water box (14), the sliding rod (13) extending through the water tank (04), and a water discharge rod (16) connected to one end of the sliding rod (13) outside the water tank (04). The counterweight frame (12) is also provided with a reversing mechanism. Two sets of the reversing mechanism are symmetrically arranged on the counterweight frame (12), including a piston cylinder (21) fixedly connected to the counterweight frame (12), a piston plate (26) slidably connected inside the piston cylinder (21), a pull rope (20) fixedly connected to the piston plate (26), a connecting rod (22) fixedly connected to the upper end of the pull rope (20), and a rubber scraper (19) fixedly connected to the lower end of the pull rope (20). The counterweight frame (12) is hinged to a mounting base (25), a reversing rod (27) is slidably connected to the mounting base (25), a sliding plate (28) is slidably connected to the mounting base (25), a spring is provided on the mounting base (25) to make the sliding plate (28) abut against the reversing rod (27), and a V-shaped bracket (24) is provided at the end of the reversing rod (27) away from the mounting base (25).

2. A photovoltaic-thermal hybrid solar collector according to claim 1, characterized in that: All the sliding rods (13) are fixedly connected to a fixed rod (29), and a triangular block (18) is fixedly connected to the fixed rod (29). The sliding rod (13) is provided with a spring that can make the sliding rod (13) move outward from the water tank (04). The water box (14) is provided with a water inlet (17). A water blocking block (15) is slidably connected to the water box (14) at the position of the water inlet (17). The water box (14) is provided with a spring that can make the water blocking block (15) return to the side of the water inlet (17).

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