Solar concentrating device and photo-thermal power generation system

Abstract

The embodiment of the invention provides a solar condensation device and a photo-thermal power generation system, and relates to the technical field of solar condensation and heat collection. The device comprises a base which is provided with an accommodating cavity; the reflection assembly comprises a reflective mirror and a support, the support is sleeved with a first driving piece, and the first driving piece is connected with the reflective mirror to drive the reflective mirror to rotate; the heat collecting pipe is arranged in the containing cavity and located on the condensation axis of the reflective mirror; the driving mechanism is arranged on the base, part of the driving mechanism is located in the containing cavity, the support is arranged on the driving mechanism, and the driving mechanism can drive the support to rotate in the circumferential direction of the base so as to track the change of the sun, so that it is ensured that sunlight can always directly irradiate the reflector. Meanwhile, the first driving piece arranged on the support in a sleeving mode drives the reflective mirror to rotate, so that sunlight can always enter the reflective mirror from the most appropriate angle, maximum receiving, focusing and tracking of the sunlight are achieved, the light condensation efficiency of the solar light condensation device is improved, and energy loss is reduced.

Description

Technical Field

[0001] This application relates to the technical field of solar concentrating and heat collection, and particularly to a solar concentrating device and a solar thermal power generation system. Background Art

[0002] With the increasing severity of the problems of fossil energy consumption and climate change caused by greenhouse gas emissions, solar energy, as a clean and renewable energy source, has received extensive attention. Solar concentrating devices belong to the technical field of solar concentrating and heat collection, and convert solar energy into heat energy by collecting and converting sunlight, so as to use solar energy for power generation or providing thermal power.

[0003] Solar concentrating devices mainly include core components such as trough-shaped reflectors, heat collection tubes, and tracking mechanisms. Among them, the trough-shaped parabolic reflector is responsible for accurately focusing and reflecting sunlight onto the heat collection tube, the heat collection tube is responsible for absorbing the focused solar radiation energy and converting it into heat energy, and the tracking mechanism is used to adjust the rotation angle of the trough-shaped reflector for concentrating light.

[0004] However, in related technologies, solar concentrating devices usually adopt single-axis tracking, and reflect sunlight by rotating the trough-shaped reflector around a horizontal rotation axis. However, due to different seasons, the altitude angles of the sun are different, resulting in relatively large concentrating efficiency and energy loss. Summary of the Invention

[0005] Embodiments of this application provide a solar concentrating device and a solar thermal power generation system to solve the problem of relatively large concentrating efficiency and energy loss of solar concentrating devices.

[0006] On the one hand, embodiments of this application provide a solar concentrating device, including:

[0007] A base having an accommodation cavity;

[0008] A reflection component including a reflector and a bracket, a first driving member is sleeved on the bracket, and the first driving member is connected to the reflector to drive the reflector to rotate;

[0009] A heat collection tube disposed in the accommodation cavity and on the light concentrating axis of the reflector;

[0010] A driving mechanism disposed on the base and partially located in the accommodation cavity, the bracket is disposed on the driving mechanism, and the driving mechanism can drive the bracket to rotate along the circumferential direction of the base to track the change of the sun.

[0011] In a possible implementation manner, for the solar concentrating device provided by embodiments of this application, the bracket includes:

[0012] A support plate connected to the driving mechanism;

[0013] Two longitudinal rods, which are oppositely arranged on the support plate;

[0014] A cross bar, both ends of the cross bar are respectively connected to the two longitudinal rods, the first driving member is arranged on the cross bar and can rotate around the radial direction of the cross bar.

[0015] In a possible implementation manner, for the solar concentrator provided by the embodiments of the present application, the driving mechanism includes:

[0016] A slide rail, which is arranged on the base;

[0017] A slider, which is slidably arranged on the slide rail;

[0018] A driving assembly, which is arranged in the accommodation cavity and is connected to the slider, and the driving assembly is configured to drive the slider to slide along the slide rail.

[0019] In a possible implementation manner, for the solar concentrator provided by the embodiments of the present application, the driving mechanism further includes at least one pulley, the pulley is rotatably arranged on the slider and abuts against the side surface of the slide rail.

[0020] In a possible implementation manner, for the solar concentrator provided by the embodiments of the present application, the driving assembly includes:

[0021] A transmission chain, which is connected to the slider, and the transmission chain has a plurality of chain links;

[0022] A transmission wheel, which has a plurality of teeth, and the teeth are arranged in one-to-one correspondence with the chain links;

[0023] A second driving member, which is configured to drive the transmission wheel to rotate.

[0024] In a possible implementation manner, for the solar concentrator provided by the embodiments of the present application, the driving mechanism further includes a first fixing member, a through hole is formed on the slider, and the first fixing member passes through the through hole and is arranged on the chain link.

[0025] In a possible implementation manner, for the solar concentrator provided by the embodiments of the present application, the driving mechanism further includes a second fixing member, at least one clamping groove is formed on the slide rail, a through hole is formed on the slider, and the second fixing member passes through the clamping groove and the through hole in sequence.

[0026] In a possible implementation manner, for the solar concentrator provided by the embodiments of the present application, the driving mechanism further includes a fixed platform, the slide rail protrudes on the fixed platform, and the fixed platform is arranged on the base through a third fixing member.

[0027] In a possible implementation, the solar concentrator provided by the embodiments of the present application, the heat collecting pipe includes a first pipeline, a second pipeline, an oil outlet pipe and an oil inlet pipe. The first pipeline and the second pipeline are both arranged along the radial direction of the base. The oil outlet pipe and the oil inlet pipe are parallel and perpendicular to the first pipeline, and the oil outlet pipe and the oil inlet pipe are arranged underground.

[0028] On the other hand, the embodiments of the present application provide a solar thermal power generation system, including a heat exchange component, a power generation component and the solar concentrator according to any one of the first aspects. The heat exchange component is respectively connected to the solar concentrator and the power generation component to transfer heat energy to the power generation component for power generation.

[0029] The solar concentrator and the solar thermal power generation system provided by the embodiments of the present application. The solar concentrator includes a base with a receiving cavity; a reflection component, including a reflecting mirror and a bracket. A first driving member is sleeved on the bracket, and the first driving member is connected to the reflecting mirror to drive the reflecting mirror to rotate; a heat collecting pipe is arranged in the receiving cavity and on the light concentrating axis of the reflecting mirror; a driving mechanism is arranged on the base and partially located in the receiving cavity. The bracket is arranged on the driving mechanism, and the driving mechanism can drive the bracket to rotate along the circumferential direction of the base to track the change of the sun, so as to ensure that the sunlight can always directly irradiate on the reflecting mirror. At the same time, the first driving member sleeved on the bracket drives the reflecting mirror to rotate, so that the sunlight can always enter the reflecting mirror from the most suitable angle, thereby realizing the maximum reception, focusing and tracking of the sunlight, improving the light concentration efficiency of the solar concentrator, and reducing the energy loss. Description of the Drawings

[0030] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with the embodiments of the present application, and are used together with the specification to explain the principles of the embodiments of the present application.

[0031] Figure 1 It is a schematic structural diagram of the solar concentrator provided by the embodiments of the present application;

[0032] Figure 2 It is Figure 1 A schematic structural diagram from another angle;

[0033] Figure 3 It is Figure 1 A schematic structural diagram from yet another angle;

[0034] Figure 4 It is Figure 1 A schematic structural diagram of the driving mechanism in

[0035] Figure 5 It is Figure 1 A schematic structural diagram of the driving component in

[0036] Figure 6 is Figure 1 a partial structural schematic diagram of the driving mechanism in

[0037] Explanation of reference numerals in the drawings:

[0038] 100 - base;

[0039] 110 - accommodation cavity;

[0040] 200 - reflection component;

[0041] 210 - reflector;

[0042] 220 - bracket; 221 - support plate; 222 - longitudinal rod; 223 - cross bar;

[0043] 230 - first driving member;

[0044] 300 - heat collecting tube;

[0045] 310 - first pipeline;

[0046] 320 - second pipeline;

[0047] 330 - oil outlet pipe;

[0048] 340 - oil inlet pipe;

[0049] 400 - driving mechanism;

[0050] 410 - slide rail; 411 - card slot;

[0051] 420 - slider; 421 - through hole;

[0052] 430 - driving component; 431 - transmission chain; 432 - transmission wheel;

[0053] 440 - pulley;

[0054] 450 - second fixing member;

[0055] 460 - fixing platform;

[0056] 470 - third fixing member.

[0057] Through the above drawings, the embodiments of the present application have been shown clearly, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the embodiments of the present application in any way, but to illustrate the concept of the embodiments of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of the embodiments of this application.

[0059] In the embodiments of this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of this application and their embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation or be constructed and operated in a specific orientation. Also, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of this application can be understood according to specific circumstances.

[0060] In addition, the terms "arrangement", "connection", and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this disclosure can be understood according to specific circumstances.

[0061] In the description of the embodiments of this application, the terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims, and the above accompanying drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the embodiments of this application described here, for example, can be implemented in an order other than those illustrated or described here.

[0062] In the embodiments of this application, words such as "exemplarily" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplarily" or "for example" is intended to present relevant concepts in a specific manner.

[0063] Unless otherwise specified, the term "plurality" means two or more.

[0064] As described in the background art, with the increasing consumption of fossil energy and the climate change problems caused by greenhouse gas emissions, solar energy, as a clean and renewable energy source, has received extensive attention. Solar concentrators belong to the field of solar concentrating and heat collecting technology, which collect and convert solar energy into heat energy to be used for power generation or providing thermal power.

[0065] Solar concentrators mainly include core components such as trough-shaped reflectors, heat collection tubes, and tracking mechanisms. Among them, the trough-shaped parabolic reflector is responsible for accurately focusing and reflecting sunlight onto the heat collection tube. The heat collection tube is responsible for absorbing the focused solar radiant energy and converting it into heat energy. The tracking mechanism is used to adjust the rotation angle of the trough-shaped reflector for light concentration.

[0066] However, in related technologies, solar concentrators usually adopt single-axis tracking. By rotating the trough-shaped reflector around the horizontal rotation axis to reflect sunlight, the altitude angle of the sun is different in different seasons, resulting in relatively large light concentration efficiency and energy loss.

[0067] To solve the above problems, the embodiments of the present application provide a solar concentrator and a solar thermal power generation system. The solar concentrator includes a base having an accommodation cavity; a reflection assembly including a reflector and a bracket, with a first driving member sleeved on the bracket, and the first driving member is connected to the reflector to drive the reflector to rotate; a heat collection tube disposed in the accommodation cavity and on the light concentration axis of the reflector; a driving mechanism disposed on the base and partially located in the accommodation cavity, and the bracket is disposed on the driving mechanism. The driving mechanism can drive the bracket to rotate along the circumferential direction of the base to track the change of the sun, so as to ensure that sunlight can always directly irradiate on the reflector. At the same time, the first driving member sleeved on the bracket drives the reflector to rotate, so that sunlight can always enter the reflector from the most suitable angle, thereby achieving the maximum reception, focusing, and tracking of sunlight, improving the light concentration efficiency of the solar concentrator, and reducing energy loss.

[0068] The following specifically describes the technical solutions of the embodiments of the present application and how the technical solutions of the embodiments of the present application solve the above technical problems. The following several specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following will describe the embodiments of the embodiments of the present application with reference to the drawings.

[0069] Please refer to Figure 1 and Figure 2。This embodiment provides a solar concentrator, comprising: a base 100 having a receiving cavity 110; a reflection assembly 200 including a reflector 210 and a bracket 220, with a first driving member 230 sleeved on the bracket 220, the first driving member 230 being connected to the reflector 210 to drive the reflector 210 to rotate; a heat collecting pipe 300 disposed in the receiving cavity 110 and on the optical axis of the reflector 210; and a driving mechanism 400 disposed on the base 100 and partially located in the receiving cavity 110, the bracket 220 being disposed on the driving mechanism 400, and the driving mechanism 400 being capable of driving the bracket 220 to rotate circumferentially along the base 100 to track the change of the sun.

[0070] Specifically, in this embodiment, the base 100 serves as the support structure of the entire solar concentrator, providing support for other structures. At the same time, the base 100 has a receiving cavity 110, providing space for the arrangement of the heat collecting pipe 300 and the driving mechanism 400, making the structure of the entire solar concentrator more compact and reducing the floor area.

[0071] In an alternative embodiment, a through groove is formed on the base 100, and the area surrounded by the through groove forms the receiving cavity 110. The heat collecting pipe 300 is arranged in a vertical layout at the central position of the receiving cavity 110, and the heat collecting pipe 300 is located on the optical axis of the reflector 210, so that the heat collecting pipe 300 can directly receive the sunlight focused by the reflector 210, ensuring the concentrating effect, enabling the heat collecting pipe 300 to fully absorb the high-density sunlight, and further improving the efficiency of heat energy conversion.

[0072] It should be noted that in other embodiments, the heat collecting pipe 300 can be arranged adaptively according to actual needs, as long as it is ensured that the heat collecting pipe 300 is located on the optical axis of the reflector 210. This embodiment does not impose any restrictions on this.

[0073] Meanwhile, since the position of the sun in the sky changes continuously throughout the day, therefore, the solar concentrator provided in this embodiment drives the bracket 220 to rotate circumferentially along the base 100 through the driving mechanism 400, so as to be able to track the change of the sun and ensure that the sunlight can always enter the reflector 210 from the most suitable angle and be reflected and focused on the heat collecting pipe 300 throughout the day.

[0074] However, in different seasons, due to the revolution of the earth and the change of the inclination angle, the solar altitude angle, that is, the angle between the sun's rays and the ground, will change significantly. In summer, the solar altitude angle is larger and the radiation intensity of solar energy is higher. In winter, the solar altitude angle is smaller and the radiation intensity of solar energy is lower. Therefore, in order to ensure the sunlight concentration effect in different seasons, the reflection assembly 200 further includes a first driving member 230. The first driving member 230 is sleeved on the bracket 220 and can rotate around the bracket 220, thereby driving the reflecting mirror 210 to rotate to adapt to different solar altitude angles and focus the sunlight on the heat collecting tube 300.

[0075] In addition, it should be noted that in this embodiment, the reflecting mirror 210 is a parabolic trough-shaped reflecting mirror 210. The curved surface shape of the parabolic trough-shaped reflecting mirror 210 can effectively reflect and focus the sunlight, so that any light emitted from the focus of the parabola will converge to another focus after being reflected by the parabolic surface, thereby focusing the sunlight at a point, making the energy more concentrated, and further improving the concentration and utilization rate of solar energy.

[0076] Meanwhile, in other embodiments, the structure of the reflecting mirror 210 can also be adaptively selected according to actual needs, and this embodiment does not impose any restrictions on this.

[0077] By adopting the above technical solutions, the solar concentrator can adapt to the position changes of the sun in different seasons and different time periods, so that the sunlight can always enter the reflecting mirror 210 from the most suitable angle, thereby realizing the maximum reception, focusing and tracking of the sunlight, improving the concentration efficiency of the solar concentrator, and reducing the energy loss.

[0078] Please refer to Figure 1 and Figure 2 . In an alternative embodiment, the bracket 220 includes a support plate 221 connected to the driving mechanism 400; two longitudinal rods 222 oppositely arranged on the support plate 221; a cross bar 223, the two ends of the cross bar 223 are respectively connected to the two longitudinal rods 222, and the first driving member 230 is arranged on the cross bar 223 and can rotate around the radial direction of the cross bar 223.

[0079] Specifically, in this embodiment, the bracket 220 includes a support plate 221 connected to the driving mechanism 400. The bottom surface of the support plate 221 abuts against the driving mechanism 400, so as to drive the entire reflection assembly 200 to rotate through the connection between the support plate 221 and the driving mechanism 400.

[0080] In this embodiment, the support plate 221 and the driving mechanism 400 are connected by screwing, so as to ensure the stability of the fixation between the support plate 221 and the driving mechanism 400. In other embodiments, the connection manner between the support plate 221 and the driving mechanism 400 can also be adaptively selected according to actual needs, and this embodiment does not impose any restrictions on this.

[0081] In this embodiment, the bracket 220 further includes two longitudinal rods 222 and a cross bar 223. The two longitudinal rods 222 are oppositely arranged on both sides of the support plate 221, and both ends of the cross bar 223 are respectively connected to the ends of the two longitudinal rods 222 that are not connected to the support plate 221, thereby forming a rectangular structure. The first driving member 230 is sleeved on the cross bar 223, and the first driving member 230 is connected to the mirror 210, so as to be able to drive the mirror 210 to rotate around the cross bar 223. Furthermore, the first driving member 230 drives the mirror 210 to rotate to adapt to different solar altitude angles, so that sunlight can always enter the mirror 210 from the most suitable angle, thereby realizing the maximum reception, focusing and tracking of sunlight, improving the light concentration efficiency of the solar concentrator, and reducing energy loss.

[0082] Specifically, in this embodiment, the first driving member 230 is a servo motor. In other embodiments, the type of the first driving member 230 can also be adaptively selected, and this embodiment does not impose any restrictions on this.

[0083] In an alternative embodiment, the support plate 221, the longitudinal rods 222 and the cross bar 223 are fixed by welding, so as to ensure the stability and reliability of the entire bracket 220. In other embodiments, it can also be adaptively selected according to actual requirements, and this embodiment does not impose any restrictions on this.

[0084] In addition, in an alternative embodiment, the longitudinal rod 222 can adopt a telescopic rod structure, so as to be able to adjust the height of the mirror 210, and further better adapt to the change of the sun's azimuth.

[0085] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 6 . In an alternative embodiment, the driving mechanism 400 includes a slide rail 410 disposed on the base 100; a slider 420 slidably disposed on the slide rail 410; and a driving assembly 430 disposed in the accommodation cavity 110 and connected to the slider 420, and the driving assembly 430 is configured to drive the slider 420 to slide along the slide rail 410.

[0086] Specifically, in this embodiment, the slide rail 410 is of an annular structure and is arranged on the base 100. The slider 420 is slidably engaged with the slide rail 410 and can slide around the heat collecting tube 300 along the slide rail 410 under the drive of the drive assembly 430, thereby driving the reflector 210 to slide along the slide rail 410 to adapt to different solar altitude angles, so that sunlight can always enter the reflector 210 from the most suitable angle, thus achieving the maximum reception, focusing and tracking of sunlight, improving the light collection efficiency of the solar concentrator, and reducing energy loss.

[0087] Among them, this embodiment does not limit the connection method between the slide rail 410 and the slider 420, and the connection method between the slide rail 410 and the slider 420 can be adaptively selected according to actual needs. Exemplarily, the slider 420 is sleeved on the slide rail 410.

[0088] In an alternative embodiment, the drive mechanism 400 further includes at least one pulley 440. The pulley 440 is rotatably arranged on the slider 420 and abuts against the side surface of the slide rail 410.

[0089] Specifically, in this embodiment, a connection hole is formed on the slider 420. The drive mechanism 400 further includes a rotating shaft. The rotating shaft penetrates through the connection hole. The pulley 440 is rotatably sleeved on the rotating shaft, and the rotation plane of the pulley 440 coincides with the side surface of the slide rail 410, so that the pulley 440 can roll along the side surface of the slide rail 410, thereby reducing the friction between the pulley 440 and the slide rail 410 and improving the smoothness of the sliding of the slider 420.

[0090] Specifically, in this embodiment, the number of pulleys 440 is four. Correspondingly, the number of connection holes and rotating shafts is also four. The four pulleys 440 are arranged in two groups on both sides of the slide rail 410 respectively, so as to ensure that when the slider 420 slides on the slide rail 410, uniform support and guiding effects can be obtained on both sides. At the same time, the four pulleys 440 can more evenly disperse the friction force between the slider 420 and the slide rail 410, thereby reducing the load borne by a single pulley 440 and improving the smoothness of the sliding of the slider 420 on the slide rail 410.

[0091] In other embodiments, the number of pulleys 440 can also be adaptively selected according to needs, and this embodiment does not limit this. Exemplarily, the number of pulleys 440 is six.

[0092] Please refer to Figures 3 to 6 . In an alternative embodiment, the drive assembly 430 includes a transmission chain 431 connected to the slider 420. The transmission chain 431 has a plurality of chain links; a transmission wheel 432 having a plurality of teeth, and the teeth are arranged in one-to-one correspondence with the chain links; a second driving member configured to drive the transmission wheel 432 to rotate.

[0093] Specifically, in this embodiment, the driving assembly 430 includes a transmission chain 431. The transmission chain 431 is fixedly connected to the slider 420. The second driving member drives the transmission wheel 432 to rotate. The teeth of the wheel correspond to the links one by one. As the transmission wheel 432 rotates, the teeth exert a thrust on the links, causing the transmission chain 431 to rotate, and then driving the slider 420 to slide along the slide rail 410, thereby achieving the driving effect.

[0094] In this embodiment, the second driving member is a motor. In other embodiments, the second driving member can also be adaptively selected according to actual needs, and this embodiment does not impose any restrictions on this.

[0095] In an alternative embodiment, the driving mechanism 400 further includes a first fixing member. A through hole 421 is formed on the slider 420, and the first fixing member passes through the through hole 421 and is arranged on the link.

[0096] Specifically, in this embodiment, a through hole 421 is formed on the slider 420, and the first fixing member passes through the through hole 421 and is arranged on the link, thereby fixing the slider 420 to the link, ensuring that the slider 420 can maintain a tight and stable connection with the transmission chain 431 under high load or long-term working conditions. At the same time, it also reduces the risk of failures caused by loose or broken connections, improving the reliability and durability of the entire driving mechanism 400.

[0097] In addition, since the connection between the slider 420 and the transmission chain 431 is more stable, when the transmission chain 431 receives the driving force from the transmission wheel 432, it can more effectively transmit the power to the slider 420, reducing the energy loss caused by loose connection, so that the movement of the slider 420 on the slide rail 410 is faster and smoother, improving the working efficiency of the entire driving mechanism 400.

[0098] In an alternative embodiment, internal threads are provided on the inner wall of the through hole 421, and external threads are provided on the first fixing member. The external threads and the internal threads are arranged in a matching manner, thereby further improving the stability of the fixation between the slider 420 and the link. When the first fixing member is screwed into the through hole 421, the external threads and the internal threads can tightly engage, effectively preventing the connection from loosening and maintaining a stable connection state even during long-term operation.

[0099] In an alternative embodiment, the driving mechanism 400 further includes a second fixing member 450. At least one card slot 411 is formed on the slide rail 410, and a through hole is formed on the slider 420. The second fixing member 450 passes through the card slot 411 and the through hole in sequence.

[0100] Specifically, when there is no light, such as in a night environment, the solar concentrator cannot concentrate light at this time, that is, it cannot collect solar energy. Therefore, the driving mechanism 400 does not need to operate at this time. However, in a lightless environment, if there is wind or other external factors causing the driving mechanism 400 to move, it is likely to cause unnecessary wear or damage to the driving mechanism 400.

[0101] Therefore, the driving mechanism 400 provided in this embodiment further includes a second fixing member 450. At least one card slot 411 is provided on the slide rail 410, and a through hole is provided on the slider 420. When in a lightless environment, the second fixing member 450 can be passed through the card slot 411 and the through hole in sequence to limit the position of the slider 420 and prevent the slider 420 from sliding due to wind or other external forces.

[0102] Specifically, one end of the second fixing member 450 can abut against the upper surface of the slider 420, so that the second fixing member 450 can limit the relative position between the slider 420 and the slide rail 410.

[0103] In other alternative embodiments, an external thread can also be provided on the second fixing member 450, and an internal thread matching the external thread is provided in the through hole and / or the card slot 411 to ensure the stability of the locking between the slider 420 and the slide rail 410.

[0104] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 6 . In an alternative embodiment, the driving mechanism 400 further includes a fixed platform 460. The slide rail 410 protrudes from the fixed platform 460, and the fixed platform 460 is arranged on the base 100 through a third fixing member 470.

[0105] Specifically, in this embodiment, the driving mechanism 400 further includes a fixed platform 460. The fixed platform 460 is arranged on the base 100, and the slide rail 410 protrudes from the fixed platform 460, which is convenient for the arrangement of the slide rail 410. At the same time, by arranging the fixed platform 460 on the base 100, the connection stability between the slide rail 410 and the base 100 can be strengthened, making the movement of the slider 420 on the slide rail 410 smoother and more stable, and reducing errors caused by vibration or loosening.

[0106] Specifically, in this embodiment, the fixed platform 460 and the slide rail 410 are manufactured by an integral molding method, which can ensure the firm connection between the fixed platform 460 and the slide rail 410 while simplifying the production process and improving production efficiency.

[0107] In an alternative embodiment, a plurality of mounting holes are formed in the fixed platform 460, and mounting grooves corresponding to the mounting holes are formed in the base 100. The third fixing member 470 passes through the mounting holes and is inserted into the mounting grooves, thereby fixing the fixed platform 460 to the base 100.

[0108] In an exemplary embodiment, internal threads are provided in the mounting grooves, and external threads matching the internal threads are provided on the third fixing member 470, thereby ensuring the stability of the fixation of the third fixing member 470.

[0109] It should be noted that the number of the third fixing members 470 can be multiple. Correspondingly, the number of the mounting grooves and the mounting holes are both multiple, and each third fixing member 470 corresponds to one mounting hole and one mounting groove.

[0110] Please refer to Figure 1 and Figure 2 In an alternative embodiment, the heat collecting pipe 300 includes a first pipeline 310, a second pipeline 320, an oil outlet pipe 330, and an oil inlet pipe 340. The first pipeline 310 and the second pipeline 320 are both arranged along the radial direction of the base 100. The oil outlet pipe 330 and the oil inlet pipe 340 are parallel and perpendicular to the first pipeline 310, and the oil outlet pipe 330 and the oil inlet pipe 340 are arranged underground.

[0111] Specifically, in this embodiment, the first pipeline 310 and the second pipeline 320 are both arranged along the radial direction of the base 100, so as to ensure that both the first pipeline 310 and the second pipeline 320 can be located on the focusing axis of the reflector 210. The heat-conducting oil enters the first pipeline 310 and the second pipeline 320 from the oil inlet pipe 340 to absorb heat energy, and then is transported to the power generation device through the oil outlet pipe 330.

[0112] When the temperature of the heat-conducting oil is relatively low, condensation will occur and it cannot flow. Therefore, in a non-illuminated environment, energy still needs to be consumed to maintain the flow of the heat-conducting oil. Therefore, in this embodiment, both the oil outlet pipe 330 and the oil inlet pipe 340 are arranged underground, so as to prevent the heat-conducting oil from condensing at night or in other environments with relatively low ambient temperatures.

[0113] This embodiment also provides a solar thermal power generation system, which includes a heat exchange component, a power generation component, and the solar concentrator described in any one of the above embodiments. The heat exchange component is respectively connected to the solar concentrator and the power generation component to transmit heat energy to the power generation component for power generation.

[0114] The specific structure of the solar concentrator has been described in the above embodiments, and will not be elaborated here.

[0115] Specifically, the solar thermal power generation system provided in this embodiment includes a heat exchange component, a power generation component, and a solar concentrator. The heat exchange component can transfer the high-density thermal energy received at the solar concentrator to the power generation component, thereby driving the power generation component to generate electricity and realizing the conversion of thermal energy into electrical energy.

[0116] For the solar thermal power generation system provided in this embodiment, by adopting the solar concentrator provided in the above embodiment, the driving mechanism 400 can drive the bracket 220 to rotate in the circumferential direction of the base 100 to track the change of the sun, so as to ensure that the sunlight can always directly shine on the reflector 210. At the same time, the first driving member 230 sleeved on the bracket 220 drives the reflector 210 to rotate, so that the sunlight can always enter the reflector 210 from the most suitable angle, thereby realizing the maximum reception, focusing and tracking of the sunlight, improving the light concentration efficiency of the solar concentrator, and reducing the energy loss.

[0117] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the embodiments of the present application. The embodiments of the present application are intended to cover any variations, uses, or adaptations of the embodiments of the present application, which follow the general principles of the embodiments of the present application and include the common general knowledge or conventional technical means in the technical field not disclosed in the embodiments of the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the embodiments of the present application are pointed out by the following claims.

[0118] It should be understood that the embodiments of the present application are not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the embodiments of the present application is only limited by the appended claims.

Claims

1. A solar concentrator device, characterized in that, Comprising: A base having a receiving cavity; A reflection assembly including a reflector and a bracket. A first driving member is sleeved on the bracket, and the first driving member is connected to the reflector to drive the reflector to rotate; A heat collecting tube disposed in the receiving cavity and on the condensing axis of the reflector; A driving mechanism disposed on the base and partially located in the receiving cavity. The bracket is disposed on the driving mechanism, and the driving mechanism can drive the bracket to rotate in the circumferential direction of the base to track the change of the sun.

2. The solar concentrator device according to claim 1, wherein The bracket includes: A support plate connected to the driving mechanism; Two longitudinal rods oppositely disposed on the support plate; A cross bar, with both ends of the cross bar respectively connected to the two longitudinal rods. The first driving member is disposed on the cross bar and can rotate around the radial direction of the cross bar.

3. The solar concentrator according to claim 1, wherein The driving mechanism includes: A slide rail disposed on the base; A slider slidably disposed on the slide rail; A driving assembly disposed in the receiving cavity and connected to the slider. The driving assembly is configured to drive the slider to slide along the slide rail.

4. The solar concentrator device according to claim 3, characterized in that, The driving mechanism further includes at least one pulley rotatably disposed on the slider and abutted against the side surface of the slide rail.

5. The solar concentrator device according to claim 3, characterized in that, The driving assembly includes: A transmission chain connected to the slider. The transmission chain has a plurality of chain links; A transmission wheel having a plurality of teeth, and the teeth are arranged in one-to-one correspondence with the chain links; A second driving member configured to drive the transmission wheel to rotate.

6. The solar concentrator device according to claim 5, characterized in that, The driving mechanism further includes a first fixing member. A through hole is formed on the slider, and the first fixing member passes through the through hole and is disposed on the chain link.

7. The solar concentrator according to any one of claims 3-6, characterized in that, The driving mechanism further includes a second fixing member. At least one clamping groove is formed on the slide rail, and a through hole is formed on the slider. The second fixing member sequentially passes through the clamping groove and the through hole and is disposed.

8. The solar concentrator device according to any one of claims 3-6, characterized in that, The driving mechanism further includes a fixed platform. The slide rail protrudes from the fixed platform, and the fixed platform is disposed on the base through a third fixing member.

9. The solar concentrator according to any one of claims 1-6, characterized in that, The heat collecting tube includes a first pipeline, a second pipeline, an oil outlet pipe and an oil inlet pipe. Both the first pipeline and the second pipeline are arranged along the radial direction of the base. The oil outlet pipe and the oil inlet pipe are parallel and perpendicular to the first pipeline, and the oil outlet pipe and the oil inlet pipe are arranged underground.

10. A solar thermal power generation system, characterized in that, Comprising a heat exchange assembly, a power generation assembly and the solar concentrating device according to any one of claims 1-9. The heat exchange assembly is respectively connected to the solar concentrating device and the power generation assembly to transfer heat energy to the power generation assembly for power generation.

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