A trough type solar concentrating tracking bracket

Abstract

The present invention provides a trough-type solar concentrating tracking bracket, wherein the adjustable lens bracket is provided with a running wheel set, and the running wheel set is driven by a motor to drive the adjustable lens bracket to move along an arc track, so that the trough-type concentrator installed on the adjustable lens bracket can rotate according to the change of the sun's position, thereby reflecting the sunlight from the most suitable direction to the solar collector tube. In this way, only the adjustable lens bracket needs to move, thereby avoiding the frequent movement of the solar collector tube, which not only reduces the maintenance and repair work of the collector tube, but also improves the high-pressure resistance of the collector tube, and at the same time greatly reduces or even avoids possible safety hazards. Therefore, the trough-type solar concentrating tracking bracket of the present invention can conveniently track the reflection of the sun, and has good practicality and market value.

Description

[0001] The patent of this application claims the domestic priority of the invention patent with application number 2021104463360 and the utility model patent with application number 2021208578956. The invention patent with application number 2021104463360 and the utility model patent with application number 2021208578956 are applied on the same day for the same invention. Technical Field

[0002] The invention relates to the technical field of trough type solar energy concentrating and heat collecting technology, and in particular to a trough type solar energy concentrating and tracking bracket. Background Art

[0003] Solar energy is a clean, pollution-free, renewable energy source. It uses a large number of trough parabolic concentrators to receive and reflect sunlight to the focal line position. By installing a tubular collector at the focal line position, the solar radiation energy is concentrated and transferred to the heat-conducting medium in the heat-collecting tube. In this way, the heat absorbed by the heat-conducting medium in the heat-collecting tube can be used in various production and living fields. This trough solar energy concentrating and heat-collecting technology is mature, has a good commercial foundation, and has a wide range of applications. Since the position of the sun is constantly changing relative to a certain place on the earth, in order to fully receive and utilize sunlight, the trough concentrator of the trough solar energy needs to rotate with the position of the sun to maximize the reception, reflection, and concentration of the thermal radiation energy of the sun to the heat-conducting medium in the heat-collecting tube. In the prior art, the heat-collecting tube and the trough concentrator are usually supported and fixed by a support frame, and the support frame is fixedly installed on the rotating shaft. The driving device drives the rotating shaft to rotate while driving the support frame, thereby driving the trough concentrator and the heat-collecting tube fixedly installed thereon to rotate synchronously. Although the scheme in the prior art realizes that the trough-type concentrator rotates with the change of the sun's position and makes the heat collecting tube move synchronously to the focal line position of the sunlight reflected by the trough-type concentrator, the solar heat collecting tube filled with heat-conducting medium is in a frequently moving working state. The problem caused by this is that the frequent movement of the heat collecting tube greatly reduces its ability to withstand high pressure, so the choice of heat-conducting medium is also limited. For example, water cannot be selected as the heat-conducting medium, because water will generate steam after absorbing heat to more than 100 degrees, and steam will increase the pressure in the heat collecting tube. However, using water as a heat-conducting medium has the advantages of low cost, no need for secondary heat exchange, reduced heat exchange loss, and reduced heat exchange equipment. Therefore, the technical scheme in the prior art needs to be further improved and optimized. In addition, if encountering strong winds, the trough-type solar concentrator in the prior art is easy to hold the wind load, making the solar device susceptible to damage when subjected to large wind loads. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a trough-type solar concentrating tracking bracket, which can conveniently track solar radiation and has good windproof performance.

[0005] The present invention provides a trough type solar concentrating tracking bracket, which adopts the following technical scheme: a trough type solar concentrating tracking bracket, comprising a collector tube support frame, an adjustable lens bracket and an arc track, wherein the collector tube support frame is used to install the solar collector tube, the adjustable lens bracket is used to support a fixed trough type concentrator, the trough type concentrator is used to receive and reflect sunlight to the solar collector tube, and the adjustable lens bracket is provided with a walking wheel group, which is driven by a motor to drive the adjustable lens bracket to move along the arc track, so that the trough type concentrator rotates around the solar collector tube.

[0006] Preferably, the traveling wheel set includes two traveling gears, the arc track includes an arc rack, and the traveling gears are meshed with the arc rack.

[0007] Preferably, the heat collecting tube support frame is installed with summer heat collecting tubes and winter heat collecting tubes arranged in parallel, the winter heat collecting tubes are located below the summer heat collecting tubes, and the arc track is driven by the first lifting device to move the trough-type concentrator up and down.

[0008] Preferably, an adjusting chain is provided on the heat collecting tube support frame, and the adjusting chain drives the heat collecting tube to move up and down in winter.

[0009] Preferably, the first lifting device is installed on a heat collecting tube support frame, and the heat collecting tube support frame is installed on a truss arranged along the length direction of the heat collecting tube. One end of the truss is rotatably connected to a fixed bearing, and the other end of the truss is rotatably connected to the second lifting device, and the second lifting device drives the other end of the truss to lift up and down.

[0010] Preferably, the adjustable lens bracket includes a left lens bracket, a right lens bracket and a connecting block, the left lens bracket and the right lens bracket are rotatably connected to the connecting block, the left lens bracket and the right lens bracket are driven by a central driving mechanism to move closer to or away from each other, and the walking wheel group is installed on the connecting block.

[0011] Preferably, the central driving mechanism includes two mutually meshing transmission gears, and the left lens bracket and the right lens bracket are respectively connected to a transmission gear. The transmission gears driven by the motor can drive the left lens bracket and the right lens bracket to move closer to or away from each other.

[0012] Preferably, the left lens bracket is rotatably connected to the left extension bracket, and the right lens bracket is rotatably connected to the right extension bracket. The left extension bracket and the right extension bracket are extended outward or retracted inward under the drive of a motor.

[0013] Preferably, the left lens bracket and the right lens bracket are respectively provided with frame bearings, and the left extension bracket and the right extension bracket are respectively provided with connecting rings, and the connecting rings are clamped in fit with the key slots of the transmission shaft, and the transmission shaft is driven by a motor to drive the left extension bracket and the right extension bracket to extend outward or retract inward respectively.

[0014] Preferably, an electric windproof hook is provided at the outer end of the left extension bracket, and an electric windproof ring is provided at the outer end of the right extension bracket.

[0015] Preferably, the trough-type condenser comprises filter glass, battery cell and back plate from top to bottom, and EVA glue is used between the filter glass and the battery cell and between the battery cell and the back plate. The trough-type condenser is respectively installed above the left lens bracket, the right lens bracket, the left extension bracket and the right extension bracket, and the curvature of the trough-type condenser matches the curvature of the left lens bracket, the right lens bracket, the left extension bracket and the right extension bracket.

[0016] Compared with the prior art, the present invention provides a trough-type solar concentrating tracking bracket, wherein the adjustable lens bracket is provided with a running wheel set, and the running wheel set is driven by a motor to drive the adjustable lens bracket to move along an arc track, so that the trough-type concentrator installed on the adjustable lens bracket can rotate according to the change of the sun's position, thereby reflecting the sunlight from the most suitable direction to the solar collector tube. In this way, only the adjustable lens bracket needs to move, thereby avoiding the frequent movement of the solar collector tube, which not only reduces the maintenance and repair work of the collector tube, but also improves the high-pressure resistance of the collector tube, while avoiding possible safety hazards. Therefore, the trough-type solar concentrating tracking bracket of the present invention can conveniently track solar radiation, and has good practicality and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the structure of a trough type solar concentrating tracking bracket of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection structure of the arc track, the connection block and the travel gear of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the adjustable lens support of the present invention in a folded working state;

[0021] Figure 4It is a schematic diagram of the structure of the adjustable lens bracket of the present invention in the outwardly unfolded windproof state;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the left lens bracket, the right lens bracket, the left extension bracket, and the right extension bracket of the present invention;

[0023] Figure 6 It is a schematic diagram of the overall structure of a focusing tracking bracket of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the trough type condenser of the present invention;

[0025] Figure 8 It is a schematic diagram of the installation structure of the groove type condenser and the adjustable lens bracket of the present invention.

[0026] Component number description

[0027] 1 Connection block

[0028] 2 Curved tracks

[0029] 3 Adjustable lens holders

[0030] 4. Heat collector tube support frame

[0031] 5 Summer collector tube

[0032] 6. Winter Collector Tubes

[0033] 7 Adjusting the chain

[0034] 8. First lifting device

[0035] 9-slot condenser

[0036] 9-1 Filter glass

[0037] 9-2 Backplane

[0038] 9-3 Battery Cell

[0039] 9-4 EVA glue

[0040] 10 Truss bearing

[0041] 11. Central drive mechanism

[0042] 12 Connecting ring

[0043] 13 Travel gear

[0044] 14 Second lifting device

[0045] 15 Electric windproof hook

[0046] 16 Electric windproof ring

[0047] 17 Left lens bracket

[0048] 18 Right lens bracket

[0049] 19 Left extension bracket

[0050] 20 Right extension bracket

[0051] 21 Mirror frame bearing

[0052] 22 Curved rack

[0053] 23 Truss DETAILED DESCRIPTION

[0054] 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.

[0055] Trough solar energy receives and reflects sunlight onto a solar heat collecting tube encapsulated with a heat conducting medium by using a trough parabolic concentrator, thereby converting solar radiation energy into heat energy and transferring it to the heat conducting medium in the heat collecting tube. The heat absorbed by the heat conducting medium can be used for production and life. Since the position of the sun is constantly changing relative to a certain position on the earth, in order to fully receive and utilize sunlight, the trough parabolic concentrator of the trough solar energy needs to rotate with the position of the sun to maximize the reception, reflection, and concentration of the thermal radiation energy of sunlight to the heat conducting medium in the heat collecting tube. Therefore, the present invention provides a trough solar energy concentrating tracking bracket that can conveniently track, reflect, and focus sunlight.

[0056] like Figure 1As shown, the present invention provides a trough type solar energy concentrating tracking bracket, comprising a heat collecting tube support frame 4, an adjustable lens support frame 3 and an arc track 2, wherein the heat collecting tube support frame 4 is used to install the solar heat collecting tube, the adjustable lens support frame 3 is used to support a fixed trough type concentrator 9, the trough type concentrator 9 is used to receive and reflect sunlight to the solar heat collecting tube, and the adjustable lens support frame 3 is provided with a running wheel group, the running wheel group is driven by a motor to drive the adjustable lens support frame 3 to move along the arc track 2, so that the trough type concentrator 9 rotates around the solar heat collecting tube. In the trough type solar energy concentrating tracking bracket provided by the present invention, the solar heat collecting tube is always in a fixed state, and the trough type concentrator 9 is driven by the running wheel group to move along the arc track 2, so that the trough type concentrator 9 rotates around the solar heat collecting tube, so that the trough type concentrator 9 rotates around the heat collecting tube according to the change of the sun's azimuth, so that the sunlight is incident on the trough type parabolic concentrating mirror surface from the most suitable angle and reflected and focused on the solar heat collecting tube. Therefore, the trough-type solar concentrating and tracking bracket provided by the present invention not only realizes the maximum reception, focusing and tracking of sunlight, but also avoids the frequent rotation of the solar collector tubes, which not only reduces the maintenance and repair work of the collector tubes, but also improves the high-pressure resistance of the collector tubes, while avoiding possible safety hazards.

[0057] Since the change of the sun's position is a continuous and slow process during the day, the speed at which the running wheel group drives the trough-type concentrator 9 to move should be adapted to the change of the sun's position, which is also a relatively slow process. Figure 2 As shown, the present invention provides a trough-type solar concentrating tracking bracket, wherein the travel wheel group includes two travel gears 13, and the arc track 2 includes an arc rack 22, and the travel gear 13 is meshed with the arc rack 22. In order to better control the movement speed of the travel gear 13, the movement of the travel gear 13 can be achieved by a motor-driven gear reduction mechanism. In the gear reduction mechanism, the small gear drives the large gear to rotate, and finally the gear of the outer ring is reduced in speed to achieve slow rotation, and the required movement speed is achieved by the step-by-step reduction transmission of the gear group. The travel gear 13 can be one, or it can be set to multiple as needed. In order to better support the adjustable lens bracket 3 and achieve the purpose of simplified control, two travel gears 13 are set in the present technical solution.

[0058] Since the amount of solar thermal radiation is unstable and is affected by many factors such as day and night, seasonal changes, weather conditions, etc., the efficiency of the trough solar system is affected by these factors accordingly. In order to make the solar system better adapt to the influence of these fluctuating factors, as a preferred implementation, Figure 1As shown, in the trough type solar concentrating tracking bracket provided by the present invention, the summer heat collecting tube 5 and the winter heat collecting tube 6 are installed on the heat collecting tube support frame 4 in parallel, and the winter heat collecting tube 6 is located below the summer heat collecting tube 5. The arc track 2 is driven by the first lifting device 8 to move the trough concentrator 9 up and down, so that the trough concentrator 9 can reflect and focus the received sunlight onto any one of the solar heat collecting tubes. When the arc track 2 is lifted up and down by the first lifting device 8, the two ends of the arc track 2 are embedded in the guide card slots of the heat collecting tube support frame 4, so that the arc track 2 will not deviate from the designed working position when moving up and down. The heat conducting medium in the summer heat collecting tube 5 can be water, and the heat conducting medium in the winter heat collecting tube 6 can be heat conducting oil. In spring and summer, the radiation intensity of sunlight is strong, which can heat the heat conducting medium water in the summer heat collecting tube 5 into high-temperature and high-pressure steam, thereby directly meeting the needs of production and life. In autumn and winter, due to the reduced radiation intensity of sunlight, the heat transfer oil in the winter heat collection tube 6 can be heated to reserve heat for winter use. Of course, in addition to switching the operation of the heat collection tube according to the characteristics of seasonal light, the summer heat collection tube 5 or the winter heat collection tube 6 can be adjusted in time according to the needs of production and life. In spring and summer, the summer heat collection tube 5 is at the focal line of the sunlight reflected by the trough concentrator 9 (the focal line of the sunlight reflected by the trough concentrator), and the trough concentrator 9 is driven by the walking wheel group to move along the arc track 2, so as to move with the change of the sun's position, and receive and reflect sunlight to the summer heat collection tube 5 to the greatest extent; in autumn and winter, the first lifting device 8 lowers the position of the arc track 2, and the position of the trough concentrator 9 is correspondingly lowered and the sunlight is reflected and focused on the winter heat collection tube 6, thereby heating the heat transfer medium in the winter heat collection tube 6. Since the positions of the arc track 2 and the trough-type concentrator 9 are moved downward as a whole, it is still possible to ensure that the traveling wheel group drives the trough-type concentrator 9 to move along the arc track 2 to focus the sunlight to the greatest extent. When the season changes to spring and summer again, the position of the arc track 2 is lifted by the first lifting device 8, so that the position of the trough-type concentrator 9 is raised and the sunlight is reflected and focused on the summer heat collecting tube 5. The first lifting device 8 is used to lift the position of the arc track 2 and the trough-type concentrator 9 supported thereon, and there are multiple implementation methods. As a preferred embodiment, the first lifting device 8 can be a jack.

[0059] In the present technical scheme, a double heat collecting tube method is adopted according to the characteristics of solar radiation in different seasons. At the same time, the position of the solar energy collecting tube group remains unchanged. The first lifting device 8 lifts and lowers the position of the arc track 2 and the trough type concentrator 9 supported thereon, so that the sunlight is reflected and focused on any one of the solar energy collecting tubes. Therefore, the ability of the collecting tube to withstand pressure is improved, thereby improving the safety and stability of the solar energy system. Moreover, the double heat collecting tube working mode is adopted, and suitable heat conducting media are used for energy absorption and conversion according to the solar radiation conditions in different seasons, which not only fully and reasonably utilizes the solar energy system, but also enables the solar energy system to meet different energy needs, thereby expanding the adaptability and flexibility of the present invention. Furthermore, the heat conducting medium of the double heat collecting tube does not need to be replaced midway after it is packaged once, thereby avoiding the cost and trouble of replacing the heat conducting medium and cleaning the pipeline of a single heat collecting tube.

[0060] The arc track 2 is movably connected to the heat collecting tube support frame 4 and can move up and down along the guide slot on the heat collecting tube support frame 4, so that the first lifting device 8 will not deviate from the designed working position when lifting the arc track 2 up and down. When the traveling wheel group drives the trough-type concentrator 9 to move along the arc track 2 to focus the sunlight to the summer heat collecting tube 5, the two ends of the arc track 2 are supported and fixed on the heat collecting tube support frame 4 and remain in a stable state, and the first lifting device 8 can cooperate to support and fix the arc track 2; when the first lifting device 8 needs to lower the position of the arc track 2, so that the traveling wheel group cooperating with it drives the trough-type concentrator 9 to lower its position, thereby focusing the sunlight to the winter heat collecting tube 6, the two ends of the arc track 2 are embedded in the guide slots of the heat collecting tube support frame 4, and the first lifting device 8 supports the arc track 2 to slowly descend along the guide slots, and the corresponding trough-type concentrator 9 supported on the arc track 2 slowly descends, and stops moving after reaching the predetermined position, and the two ends of the arc track 2 are supported and fixed on the heat collecting tube support frame 4 and remain in a stable state, and the first lifting device 8 can cooperate to support and fix the arc track 2 to keep it in a stable state.

[0061] In order to better adjust the relative position of the trough concentrator 9 and the solar heat collecting tube so that the solar heat collecting tube can fully receive the sunlight, as a preferred embodiment, the heat collecting tube support frame 4 is provided with an adjustment chain 7, which can adjust the height position of the winter heat collecting tube 6, and the adjustment chain 7 drives the winter heat collecting tube 6 to move up and down so that the winter heat collecting tube 6 is at the focal line position of the sunlight reflected by the trough concentrator 9. Usually, in spring and summer, when the trough concentrator 9 is required to reflect and focus the sunlight to the summer heat collecting tube 5, in order to prevent the winter heat collecting tube 6 from blocking the summer heat collecting tube 5, the winter heat collecting tube 6 can be lowered to a focal line position away from the trough concentrator 9 by adjusting the chain 7 to avoid interference and blocking the summer heat collecting tube 5; in autumn and winter, when it is necessary to reflect and focus the sunlight to the winter heat collecting tube 6, the winter heat collecting tube 6 is raised to a certain position by adjusting the chain 7. Since the position of the summer heat collecting tube 5 is fixed, when the adjusting chain 7 raises the winter heat collecting tube 6 to a certain position, the first lifting device 8 is required to raise and lower the position of the arc track 2 to adjust the position of the trough concentrator 9 relative to the winter heat collecting tube 6, so that the winter heat collecting tube 6 is at the focal line position of the sunlight reflected by the trough concentrator 9. By using the adjusting chain 7 to raise and lower the winter heat collecting tube 6, the relative position adjustment method of the trough concentrator 9 and the solar heat collecting tube is more convenient and flexible; since the position of the winter heat collecting tube 6 only needs to be adjusted when the season changes, the movement frequency of the heat collecting tube in the prior art has been greatly reduced, the pressure resistance of the heat collecting tube is kept good, and the safety and stability of the solar energy system is good.

[0062] For a specific location on the ground, the position of the sun is constantly changing during the day and night, and the altitude angle of the sun will also change during the season change. In order to make the trough concentrator 9 maintain the best solar incident angle under the change of seasons, as a preferred embodiment, Figure 6As shown, the first lifting device 8 is installed on the heat collecting tube support frame 4, and the heat collecting tube support frame 4 is installed on the truss 23 arranged along the length direction of the heat collecting tube. One end of the truss 23 is rotatably connected to the fixed truss bearing 10, and the other end of the truss 23 is rotatably connected to the second lifting device 14, and the second lifting device 14 drives the other end of the truss 23 to rise and fall. In this way, the heat collecting tube support frame 4 and the trough concentrator 9 and solar heat collecting tube thereon are all supported on the truss 23, and multiple groups of solar energy concentrating tracking brackets can be set according to actual support needs. By fixing one end of the truss 23 with the truss bearing 10, the other end of the truss 23 is lifted or lowered by the second lifting device 14, thereby driving the truss at the other end and the heat collecting tube support frame 4, trough concentrator 9, and solar heat collecting tube supported thereon to be lifted or lowered as a whole, thereby adjusting the inclination angle of the trough solar energy concentrating tracking bracket, so as to be at the best angle with the sunlight in different seasons, and improving the solar energy receiving and reflecting efficiency of the trough concentrator 9. There are many ways to realize the lifting of the truss 23 by the second lifting device 14. As a preferred embodiment, the second lifting device 14 can be a jack. One end of the truss is welded to the housing of the truss bearing 10, and the other end of the truss is supported by the jack. By adjusting the height of the jack, the tilt angle of the trough type solar concentrating tracking bracket can be adjusted in different seasons.

[0063] Solar energy equipment is usually installed outdoors, where there is often strong wind. The parabolic trough concentrator 9 is easy to catch the wind and bear a large wind load, causing damage to the solar energy equipment. To reduce the impact of wind load, please refer to Figures 3 to 5As a preferred embodiment, the present invention provides a trough type solar concentrating tracking bracket, wherein the adjustable lens bracket 3 includes a left lens bracket 17, a right lens bracket 18 and a connecting block 1, wherein the left lens bracket 17 and the right lens bracket 18 are rotatably connected to the connecting block 1, and the left lens bracket 17 and the right lens bracket 18 are driven by a central driving mechanism 11 to move closer to or away from each other, and the walking wheel group is installed on the connecting block 1. Normally, the left lens bracket 17 and the right lens bracket 18 are fixedly connected to the connecting block 1 through positioning pins, and the running wheel group is installed on the connecting block 1. The motor drives the running wheel group to drive the groove type condenser 9 installed on the adjustable lens bracket 3 to move along the arc track 2; when encountering strong winds, the positioning pins are pulled out, and the left lens bracket 17 and the right lens bracket 18 are driven by the central driving mechanism 11 to stretch outward and open, thereby driving the groove type condenser 9 installed thereon to stretch outward in a relatively flat state to reduce wind load; when it is necessary to fold and reset, the central driving mechanism 11 drives the left lens bracket 17 and the right lens bracket 18 to fold inward, and when reaching the predetermined position, the positioning pin pops out and inserts the pin hole, and the left lens bracket 17 and the right lens bracket 18 are folded and reset and fixedly connected to the connecting block 1. In order to prevent the arc track 2 from blocking the extension and opening of the adjustable lens bracket 3, the arc track 2 can be set at the outer position of the two ends of the heat collecting tube or below the position when the groove type condenser 9 is in the unfolded state.

[0064] Since the groove-type condenser 9 is fixedly mounted on the adjustable lens holder 3, in order to prevent the groove-type condenser 9 from being damaged during movement, the movement of the left lens holder 17 and the right lens holder 18 to expand outwards should be performed slowly, so the speed of the central driving mechanism 11 should be relatively slow. As a preferred embodiment, the central driving mechanism 11 includes two mutually meshing transmission gears, and the left lens holder 17 and the right lens holder 18 are respectively connected to a transmission gear, and the transmission gear is driven by a motor to drive the left lens holder 17 and the right lens holder 18 to move closer to or away from each other. In order to achieve a suitable speed, the two mutually meshing gears can achieve a suitable movement speed by driving the motor to drive the reduction gear set to reduce the speed step by step, thereby driving the left lens holder 17 and the right lens holder 18 to slowly expand outwards or retract inwards.

[0065] To better reduce wind loads, please refer to Figures 3 to 5The left lens bracket 17 is rotatably connected to the left extension bracket 19, and the right lens bracket 18 is rotatably connected to the right extension bracket 20. The left extension bracket 19 and the right extension bracket 20 are driven by the motor to extend outward or retract inward. Since the left extension bracket 19 and the right extension bracket 20 can be freely rotated outward to extend and open or rotated inward to retract and reset, when encountering strong winds, the adjustable lens bracket 3 can be stretched outward to a greater extent, thereby achieving a better effect of reducing the windiness and wind load. As a specific implementation, the left lens bracket 17 is provided with a frame bearing 21, the left extension bracket 19 is provided with a connecting ring 12, the connecting ring 12 is clamped with the keyway of the transmission shaft, the frame bearing 21 supports the transmission shaft and the left extension bracket 19 clamped thereto, so that the transmission shaft driven by the motor drives the left extension bracket 19 to extend outward or retract inward relative to the left lens bracket 17; in the same case, the right lens bracket 18 is provided with a frame bearing 21, the right extension bracket 20 is provided with a connecting ring 12, the connecting ring 12 is clamped with the keyway of the transmission shaft, the frame bearing 21 supports the transmission shaft and the right extension bracket 20 clamped thereto, so that the transmission shaft driven by the motor drives the right extension bracket 20 to extend outward or retract inward relative to the right lens bracket 18. Usually, the left extension bracket 19 can be fixedly connected to the left lens bracket 17 by means of a pin and a pin hole, and the right extension bracket 20 can be fixedly connected to the right lens bracket 18 by means of a pin and a pin hole. When the left extension bracket 19 needs to be opened outward, the pin is pulled out, and the motor drives the transmission shaft fixedly connected to the left extension bracket 19 to rotate, thereby driving the left extension bracket 19 to extend outward relative to the left lens bracket 17. After the left extension bracket 19 is unfolded to the predetermined position, the left extension bracket 19 and the left lens bracket 17 are clamped and positioned by the pin hole. Similarly, when the right extension bracket 20 needs to be opened outward, the pin is pulled out, and the motor drives the transmission shaft fixedly connected to the right extension bracket 20 to rotate, thereby driving the right extension bracket 20 to extend outward relative to the right lens bracket 18. After the right extension bracket 20 is unfolded to the predetermined position, the right extension bracket 20 and the right lens bracket 18 are clamped and positioned by the pin hole. When the left extension bracket 19 and the right extension bracket 20 need to be retracted and reset inward, the motor drives the transmission shaft to rotate, thereby driving the left extension bracket 19 and the right extension bracket 20 to retract and reset inward. After reaching the predetermined position, the pin hole is clamped and limited.

[0066] Normally, the left lens bracket 17, the right lens bracket 18, the left extension bracket 19 and the right extension bracket 20 are in an inwardly retracted state, and the entire adjustable lens bracket 3 supports the trough type concentrator 9 in a parabolic shape to concentrate and reflect sunlight; when encountering windy weather, the left lens bracket 17 and the right lens bracket 18 are driven to expand outward by the above-mentioned central driving mechanism 11, and at the same time, the left extension bracket 19 is expanded outward relative to the left lens bracket 17 and the right extension bracket 20 is expanded outward relative to the right lens bracket 18, and the entire adjustable lens bracket 3 is expanded in an approximate "I" shape, which will significantly reduce the windiness, greatly reduce the wind load of the trough type concentrator 9, and reduce the damage to the solar energy device and the occurrence of safety accidents.

[0067] In order to make the adjustable lens bracket 3 more stably support and fix the solar equipment when it is in the extended state, the outer end of the left extension bracket 19 is provided with an electric windproof hook 15, and the outer end of the right extension bracket 20 is provided with an electric windproof ring 16. In this way, when encountering strong winds, the adjustable lens bracket 3 is stretched outward and opened in a "one" shape flattened state, the electric windproof hook 15 and the electric windproof ring 16 are electrically driven to connect the solar support racks one by one, so as to achieve a better effect of resisting strong winds. When the strong wind ends and the adjustable lens bracket 3 needs to be folded and reset, the electric windproof hook 15 and the electric windproof ring 16 are electrically driven under the automatic control command and automatically disconnected.

[0068] refer to Figure 7 The trough condenser 9 is composed of a filter glass 9-1, a battery cell 9-3 and a back plate 9-2 from top to bottom. EVA glue 9-4 is used between the filter glass 9-1 and the battery cell 9-3 and between the battery cell 9-3 and the back plate 9-2. The filter glass 9-1, EVA glue 9-4, the battery cell 9-3, EVA glue 9-4 and the back plate 9-2 are formed into a whole by high temperature and high pressure. Figure 8 In this embodiment, there are four trough-type condensers 9, which are respectively mounted on the left lens bracket 17, the right lens bracket 18, the left extension bracket 19 and the right extension bracket 20. The curvature of the trough-type condenser 9 matches the curvature of the left lens bracket 17, the right lens bracket 18, the left extension bracket 19 and the right extension bracket 20. The trough-type condenser 9 is arc-shaped, and the spectrum frequency division utilizes sunlight. The coating technology is used to achieve the selective utilization of the spectrum division. Among them, the red, orange, yellow, green, indigo, blue and purple visible light that can be converted into electrical energy can penetrate the filter glass 9-1 and directly irradiate the battery cell 9-3 to be converted into electrical energy. Other invisible far-beam infrared rays, intermediate infrared spectral regions and long waves that are too long are reflected by the arc-shaped trough-type condenser 9 to the collector and converted into heat. The utilization of the spectrum division can improve the efficiency of solar energy. The main purpose of reflecting ultraviolet rays is to prevent ultraviolet rays from corroding the EVA glue 9-4.

[0069] Based on the technical solutions of the above embodiments, a trough-type solar adjustable focusing tracking windproof bracket of the present invention can conveniently adjust the direction of the trough-type concentrator to better concentrate light, improve the efficiency of solar energy utilization, avoid the frequent movement of solar collector tubes under high temperature and high pressure working conditions and cause safety hazards, and at the same time can also reduce the impact of wind loads, greatly improving safety. The trough-type concentrator is arc-shaped to achieve the purpose of focusing, and the visible light suitable for power generation is used for power generation, thereby improving the efficiency of power generation.

[0070] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A trough type solar concentrating tracking bracket, characterized in that: It includes a heat collecting tube support frame, an adjustable lens support and an arc track, the heat collecting tube support frame is used to install the solar heat collecting tube, the adjustable lens support is used to support the fixed trough type concentrator, the trough type concentrator is used to receive and reflect sunlight to the solar heat collecting tube, the adjustable lens support is provided with a walking wheel group, the walking wheel group is driven by a motor to drive the adjustable lens support to move along the arc track so that the trough type concentrator rotates around the solar heat collecting tube; the adjustable lens support includes a left lens support, a right lens support and a connecting block, the left lens support and the right lens support are rotatably connected to the connecting block, the left lens support and the right lens support are driven by a central driving mechanism to move closer to or away from each other, and the walking wheel group is installed on the connecting block; the central driving mechanism The driving mechanism includes two mutually meshing transmission gears, and the left lens bracket and the right lens bracket are respectively connected to a transmission gear, and the transmission gear is driven by a motor to drive the left lens bracket and the right lens bracket to move closer to or away from each other; the left lens bracket is rotatably connected to the left extension bracket, and the right lens bracket is rotatably connected to the right extension bracket, and the left extension bracket and the right extension bracket are extended outward or retracted inward under the drive of the motor; the left lens bracket and the right lens bracket are respectively provided with frame bearings, and the left extension bracket and the right extension bracket are respectively provided with connecting rings, and the connecting rings are clamped with the keyway of the transmission shaft, and the transmission shaft is driven by the motor to drive the left extension bracket and the right extension bracket to extend outward or retract inward respectively.

2. The trough type solar concentrating tracking bracket according to claim 1, characterized in that: The travel wheel set includes two travel gears, the arc track includes an arc rack, and the travel gears are meshed with the arc rack.

3. The trough type solar concentrating tracking bracket according to claim 1, characterized in that: The heat collecting tube support frame is installed with summer heat collecting tubes and winter heat collecting tubes arranged in parallel, the winter heat collecting tubes are located below the summer heat collecting tubes, and the arc track is driven by the first lifting device to move the trough type concentrator up and down.

4. The trough type solar concentrating tracking bracket according to claim 3, characterized in that: The heat collecting tube support frame is provided with an adjusting chain, and the adjusting chain drives the heat collecting tube to move up and down in winter.

5. The trough type solar concentrating tracking bracket according to claim 3, characterized in that: The first lifting device is installed on a heat collecting tube support frame, and the heat collecting tube support frame is installed on a truss arranged along the length direction of the heat collecting tube. One end of the truss is rotatably connected to a fixed bearing, and the other end of the truss is rotatably connected to the second lifting device. The second lifting device drives the other end of the truss to move up and down.

6. The trough type solar concentrating tracking bracket according to claim 1, characterized in that: The trough-type condenser comprises filter glass, battery cell and back plate from top to bottom, and EVA glue is used between the filter glass and the battery cell and between the battery cell and the back plate. The trough-type condenser is respectively mounted above the left lens bracket, the right lens bracket, the left extension bracket and the right extension bracket, and the curvature of the trough-type condenser matches the curvature of the left lens bracket, the right lens bracket, the left extension bracket and the right extension bracket.

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