Double-shaft tilting solar condensation device

Abstract

The embodiment of the invention provides a double-shaft tilting solar light condensation device, and relates to the technical field of solar light condensation and heat collection. The embodiment of the invention provides a double-shaft tilting solar condensation device. The double-shaft tilting solar condensation device comprises a base; the reflecting mirror is arranged on the base and is used for reflecting solar rays; the double-shaft tilting assembly is arranged on the base and connected with the reflecting mirror, and the double-shaft tilting assembly is configured to drive the reflecting mirror to rotate in the east-west direction and / or the south-north direction; and the heat collecting pipe is positioned on the condensation axis of the reflecting mirror so as to absorb the solar rays reflected by the reflecting mirror. The double-shaft tilting assembly is controlled to drive the reflector to realize double-shaft rotation according to the change of the solar elevation angle, so that the reflector can tilt along with the change of the solar elevation angle, the incident angle of solar rays is increased, and the light gathering efficiency of the reflector is further improved; and the annual solar irradiation amount received by the double-shaft tilting solar concentrating device is improved.

Description

Technical Field

[0001] This application relates to the technical field of solar concentrating and heat collecting technology, and particularly to a dual-axis tilting solar concentrating device. 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 and heat collecting devices relate to the technical field of solar concentrating and heat collecting technology, and convert solar light energy into heat energy for power generation or providing thermal power.

[0003] Solar concentrating and heat collecting devices mainly include trough-shaped reflectors and heat collecting tubes. The trough-shaped reflectors are used to focus and reflect sunlight onto the heat collecting tubes, and the heat collecting tubes are used to absorb the focused solar radiation energy and convert it into heat energy.

[0004] However, in practical applications, the position of the sun is not fixed. With the change of seasons, the altitude angle of the sun changes, resulting in the focal point of the sun rays reflected by the reflector deviating from the heat collecting tube, thereby reducing the concentrating efficiency of the solar concentrating device and the efficiency of heat energy conversion. Summary of the Invention

[0005] Embodiments of this application provide a dual-axis tilting solar concentrating device to solve the problem that the altitude angle of the sun changes, resulting in the focal point of the sun rays reflected by the reflector deviating from the heat collecting tube.

[0006] Embodiments of this application provide a dual-axis tilting solar concentrating device, including:

[0007] A base;

[0008] A reflector, arranged on the above-mentioned base, and the above-mentioned reflector is used to reflect sunlight;

[0009] A dual-axis tilting assembly, arranged on the above-mentioned base and connected to the above-mentioned reflector, and the above-mentioned dual-axis tilting assembly is configured to drive the above-mentioned reflector to rotate around the east-west direction and / or the north-south direction;

[0010] A heat collecting tube, located on the concentrating axis of the above-mentioned reflector to absorb the sunlight reflected by the above-mentioned reflector.

[0011] In a possible implementation manner, for the dual-axis tilting solar concentrating device provided by the embodiments of this application, the above-mentioned dual-axis tilting assembly includes:

[0012] A first support member, connected to the above-mentioned reflector;

[0013] A first rotating shaft, arranged on the above-mentioned first support member and arranged along the above-mentioned east-west direction;

[0014] The first driving member, the first driving member is configured to drive the first rotating shaft to rotate, so as to drive the mirror to rotate along the east-west direction;

[0015] The second support member, connected to the base;

[0016] The second rotating shaft, arranged on the second support member and arranged along the north-south direction;

[0017] The second driving member, the second driving member is configured to drive the second rotating shaft to rotate, so as to drive the mirror to rotate along the north-south direction;

[0018] The connecting member, located between the first driving member and the second driving member, and respectively connected to the first driving member and the second driving member.

[0019] In a possible implementation manner, for the dual-axis tilting solar concentrator provided by the embodiments of the present application, the dual-axis tilting assembly further includes:

[0020] The first driving wheel, connected to the output end of the first driving member;

[0021] The first driven wheel, sleeved on the first rotating shaft and cooperating with the first driving wheel;

[0022] The second driving wheel, connected to the output end of the second driving member;

[0023] The second driven wheel, sleeved on the second rotating shaft and cooperating with the second driving wheel.

[0024] In a possible implementation manner, for the dual-axis tilting solar concentrator provided by the embodiments of the present application, the mirror includes a mirror surface and a folding mechanism, the mirror surface is arranged on the folding mechanism, and the folding mechanism is configured to expand or contract to adjust the reflection focus of the mirror surface.

[0025] In a possible implementation manner, for the dual-axis tilting solar concentrator provided by the embodiments of the present application, the folding mechanism includes:

[0026] At least two link assemblies, including a first link and a second link arranged crosswise, the first link and the second link are hinged, the first link is connected to the second link in the adjacent link assembly, and the second link is connected to the first link in the adjacent link assembly;

[0027] At least two third support members, correspondingly arranged on the link assemblies, and the mirror surface is arranged on the third support members;

[0028] A third driving member is disposed on one of the first linkages, and the third driving member is configured to drive the first linkage to rotate relative to the second linkage.

[0029] In a possible implementation, for the dual-axis tilting solar concentrator provided in the embodiments of the present application, the linkage assembly further includes a third linkage. The number of the first linkages and the second linkages is two each. The two first linkages and the two second linkages are oppositely arranged, and two ends of the third linkage are respectively connected to the two first linkages or the two second linkages.

[0030] In a possible implementation, for the dual-axis tilting solar concentrator provided in the embodiments of the present application, it further includes two heat conduction tubes, and the two heat conduction tubes are respectively communicated with the two heat collection tubes located on both sides.

[0031] In a possible implementation, for the dual-axis tilting solar concentrator provided in the embodiments of the present application, the heat conduction tube has a telescopic portion, and the telescopic portion can be telescoped to adjust the length of the heat conduction tube.

[0032] In a possible implementation, for the dual-axis tilting solar concentrator provided in the embodiments of the present application, the heat conduction tube includes a first sub-tube and a second sub-tube that are communicated with each other. The first sub-tube is communicated with the heat collection tube. The first sub-tube is rotatably connected to the second sub-tube, and the second sub-tube is used to be communicated with an external device.

[0033] In a possible implementation, for the dual-axis tilting solar concentrator provided in the embodiments of the present application, the base includes a truss and a support base. The truss is disposed on the support base, and the dual-axis tilting assembly and the reflector are both disposed on the truss.

[0034] The dual-axis tilting solar concentrator provided in the embodiments of the present application includes a base; a reflector disposed on the base for reflecting sunlight; a dual-axis tilting assembly disposed on the base and connected to the reflector, and the dual-axis tilting assembly is configured to drive the reflector to rotate around the east-west direction and / or the north-south direction; a heat collection tube located on the light collection axis of the reflector to absorb the sunlight reflected by the reflector. By controlling the dual-axis tilting assembly to drive the reflector to perform dual-axis rotation according to the change of the solar altitude angle, the reflector can be tilted following the change of the solar altitude angle, so as to increase the incident angle of sunlight, thereby increasing the light collection efficiency of the reflector and improving the annual solar irradiance received by the dual-axis tilting solar concentrator.

[0035] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by the technical features of these technical solutions, the other technical problems that can be solved by the technical solutions provided by the embodiments of the present application, the other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manners. Brief Description of the Drawings

[0036] The drawings herein are incorporated into the specification and form a part of the specification, showing 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.

[0037] Figure 1 Structural schematic of the dual-axis tilting solar concentrator provided by the embodiments of the present application Figure 1 ;

[0038] Figure 2 is Figure 1 Structural schematic of the rotation of the dual-axis tilting solar concentrator structure in the north-south direction in

[0039] Figure 3 Structural schematic of the dual-axis tilting solar concentrator provided by the embodiments of the present application Figure 2 ;

[0040] Figure 4 is Figure 1 Structural schematic of the dual-axis tilting assembly in

[0041] Figure 5 is Figure 1 Structural schematic of the opening and closing mechanism in

[0042] Description of the reference numerals:

[0043] 100 - Base; 110 - Truss; 120 - Support base;

[0044] 200 - Reflector; 210 - Mirror surface; 220 - Opening and closing mechanism; 221 - Link assembly; 2211 - First link; 2212 - Second link; 2213 - Third link; 222 - Third support member; 223 - Third driving member;

[0045] 300 - Dual-axis tilting assembly; 310 - First support member; 320 - First rotating shaft; 330 - First driving member; 331 - First driving wheel; 340 - Second support member; 350 - Second rotating shaft; 360 - Second driving member; 361 - Second driving wheel; 370 - Connecting member; 380 - First driven wheel; 390 - Second driven wheel;

[0046] 400 - Heat collecting tube;

[0047] 500 - Heat conduction tube; 510 - First sub - tube; 511 - Telescopic part; 520 - Second sub - tube.

[0048] Through the above - mentioned drawings, the specific embodiments of the present application have been shown, and there will be a more detailed description hereinafter. These drawings and written 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

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the embodiments of the present application.

[0050] In the embodiments of the present application, the orientation or positional relationships indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientation or positional relationships shown in the drawings. These terms are mainly used to better describe the embodiments of the present 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. And, in addition to being able to represent orientation or positional relationships, some of the above - mentioned 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 the present application can be understood according to specific circumstances.

[0051] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" 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 also be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0052] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above - mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0053] In the embodiments of the present 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 the present application should not be construed as being more preferred or advantageous 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.

[0054] Unless otherwise specified, the term "plurality" means two or more.

[0055] As described in the background art, with the increasing consumption of fossil energy and the problem of climate change caused by greenhouse gas emissions, solar energy, as a clean and renewable energy source, has received extensive attention. Solar concentrating and heat collecting devices involve the technical field of solar concentrating and heat collecting technology, and convert solar energy into heat energy by collecting and converting sunlight for power generation or providing thermal power.

[0056] Solar concentrating and heat collecting devices mainly include trough-shaped reflectors and heat collecting tubes. The trough-shaped reflectors are used to focus and reflect sunlight onto the heat collecting tubes, and the heat collecting tubes are used to absorb the focused solar radiation energy and convert it into heat energy.

[0057] However, in practical applications, the position of the sun is not fixed. With the change of seasons, the altitude angle of the sun changes, resulting in the deviation of the focal point of the sunlight reflected by the reflector from the heat collecting tube, thereby reducing the concentrating efficiency of the solar concentrating device and the efficiency of heat energy conversion.

[0058] To solve the above problems, the embodiments of the present application provide a two-axis tilting solar concentrating device, including a base; a reflector disposed on the base, the reflector being used to reflect sunlight; a two-axis tilting assembly disposed on the base and connected to the reflector, the two-axis tilting assembly being configured to drive the reflector to rotate around the east-west direction and / or the north-south direction; and a heat collecting tube located on the optical axis of the reflector to absorb the sunlight reflected by the reflector. By controlling the two-axis tilting assembly to drive the reflector to perform two-axis rotation according to the change of the sun's altitude angle, the reflector can be tilted following the change of the sun's altitude angle, so as to increase the incident angle of sunlight, thereby increasing the concentrating efficiency of the reflector and improving the annual solar irradiance received by the two-axis tilting solar concentrating device.

[0059] The following will specifically describe 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 in detail. 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 present application in conjunction with the drawings.

[0060] Please refer toFigure 1 , Figure 2 and Figure 3 . This embodiment provides a two-axis tilting solar concentrator, including a base 100; a reflector 200 disposed on the base 100, and the reflector 200 is used to reflect sunlight; a two-axis tilting assembly 300 disposed on the base 100 and connected to the reflector 200, and the two-axis tilting assembly 300 is configured to drive the reflector 200 to rotate around the east-west direction and / or the north-south direction; a heat collection tube 400 located on the optical axis of the reflector 200 to absorb the sunlight reflected by the reflector 200.

[0061] Specifically, in this embodiment, the base 100 is the foundation of the entire two-axis tilting solar concentrator, disposed on the ground, and is used to support the reflector 200 and the two-axis tilting assembly 300. Among them, the base 100 can be a flat plate structure or a frame structure to increase the contact area between the base 100 and the ground and ensure the stability of the support.

[0062] Specifically, due to the rotation of the earth, the sun moves from east to west within a day. At the same time, due to the influence of the earth's revolution and the inclination of the earth's axis, the position of the sun in the sky will shift north and south with the change of seasons. Therefore, in this embodiment, by driving the reflector 200 to rotate along the east-west direction and / or the north-south direction through the two-axis tilting assembly 300, the rotation angle of the reflector 200 can be accurately adjusted according to the real-time position of the sun, ensuring that the reflector 200 always faces the sun, maximizing the incident angle of sunlight, and thus maximizing the sunlight receiving area and the concentration efficiency.

[0063] Among them, it should be noted that the two-axis tilting assembly 300 can independently control the two rotation directions of the reflector 200. Specifically, the two-axis tilting assembly 300 can control the reflector 200 to rotate alone along the east-west direction, or can also control the reflector 200 to rotate alone along the north-south direction, or rotate along the east-west direction and the north-south direction simultaneously, so as to adapt to different solar altitude angles and make the sunlight accurately focus on the heat collection tube 400.

[0064] Among them, the two-axis tilting assembly 300 can be a universal joint structure to achieve rotation along the east-west direction and / or the north-south direction. In other embodiments, the two-axis tilting assembly 300 can also be other structures that can achieve independent or simultaneous rotation in two directions, and this embodiment does not impose any restrictions on this.

[0065] By adopting the above technical solution, it is possible to control the two-axis tilting assembly 300 to drive the reflector 200 to rotate according to the change of the solar altitude angle, so that the reflector 200 is tilted relative to the ground to increase the incident angle of sunlight, thereby increasing the concentration efficiency of the reflector 200 and improving the annual solar irradiance received by the two-axis tilting solar concentrator.

[0066] In addition, in other embodiments, multiple arrays of biaxial tilting solar concentrators can be arranged in an array. By reasonably planning the positions and spacings of each biaxial tilting solar concentrator, the limited land resources can be fully utilized, and the power generation efficiency of the overall system can be improved.

[0067] Among them, the bases 100 of two adjacent biaxial tilting solar concentrators can be connected by a transverse connecting rod to connect multiple biaxial tilting solar concentrators into a whole, thereby improving the stiffness of the entire system and ensuring the structural stability.

[0068] Please refer to Figures 1 to 5 . In an alternative embodiment, the biaxial tilting assembly 300 includes:

[0069] A first support member 310, connected to the reflector 200;

[0070] A first rotating shaft 320, disposed on the first support member 310 and arranged in the east-west direction;

[0071] A first driving member 330, configured to drive the first rotating shaft 320 to rotate so as to drive the reflector 200 to rotate in the east-west direction;

[0072] A second support member 340, connected to the base 100;

[0073] A second rotating shaft 350, disposed on the second support member 340 and arranged in the north-south direction;

[0074] A second driving member 360, configured to drive the second rotating shaft 350 to rotate so as to drive the reflector 200 to rotate in the north-south direction;

[0075] A connecting member 370, located between the first driving member 330 and the second driving member 360 and respectively connected to the first driving member 330 and the second driving member 360.

[0076] Specifically, in this embodiment, the first support member 310 is connected to the mirror 200. The first driving member 330 can drive the first rotating shaft 320 disposed on the first support member 310 to rotate, so that the first rotating shaft 320 drives the mirror 200 to rotate in the east-west direction through the first support member 310. Correspondingly, the second driving member 360 is connected to the first driving member 330 through the connecting member 370. The second driving member 360 can drive the rotating shaft disposed on the second support member 340 to rotate. At this time, since the second support member 340 is fixedly disposed on the base 100, therefore, under the drive of the second driving member 360, the second driving member 360 itself can rotate in the north-south direction, thereby driving the first driving member 330, the first support member 310, and the mirror 200 to rotate in the north-south direction through the connecting member 370. Furthermore, through the settings of the first driving member 330 and the second driving member 360, the two rotation directions of the mirror 200 can be independently controlled, so as to adapt to different solar altitude angles, enable the sun's rays to accurately focus on the heat collecting tube 400, ensure the light collection efficiency of the mirror 200, and improve the annual solar irradiance received by the two-axis tilting solar concentrator.

[0077] Specifically, in this embodiment, both the first driving member 330 and the second driving member 360 are motors. In other embodiments, the specific specifications and types of the first driving member 330 and the second driving member 360 can also be adaptively selected according to needs, and this embodiment does not impose any restrictions on this.

[0078] In an alternative embodiment, the two-axis tilting assembly 300 further includes:

[0079] A first driving wheel 331, connected to the output end of the first driving member 330;

[0080] A first driven wheel 380, sleeved on the first rotating shaft 320 and cooperating with the first driving wheel 331;

[0081] A second driving wheel 361, connected to the output end of the second driving member 360;

[0082] A second driven wheel 390, sleeved on the second rotating shaft 350 and cooperating with the second driving wheel 361.

[0083] Specifically, in this embodiment, the first driving member 330 is connected to the output end of the first driving member 330, so that it can rotate under the drive of the first driving member 330. The first driven wheel 380 is sleeved on the first rotating shaft 320 and meshes with the first driving wheel 331, so that it can rotate under the drive of the first driving wheel 331, and then drive the rotating shaft to rotate.

[0084] Specifically, both the first driving wheel 331 and the first driven wheel 380 are helical gears and are arranged perpendicular to each other. The first rotating shaft 320 is arranged in the east-west direction. Driven by the first driving member 330, the first driven wheel 380 can drive the rotating shaft to rotate around the east-west direction, thereby realizing the rotation of the mirror 200 in the east-west direction. At the same time, with the cooperation of helical gears, multiple tooth pairs bear the load, improving the load-bearing capacity of the gears and ensuring the stability of the transmission.

[0085] Among them, the first support member 310 can be directly connected to the first driven wheel 380 or directly connected to the first rotating shaft 320. This embodiment does not impose any restrictions on this.

[0086] At the same time, in this embodiment, the number of the first driving members 330, the first driving wheels 331, and the first driven wheels 380 is two. The two first driving members 330 are both arranged on the connecting member 370. The two first driving wheels 331 are respectively connected to the output ends of the two first driving members 330 in a corresponding manner. The two first driven wheels 380 are oppositely arranged at both ends of the first rotating shaft 320 and are respectively engaged with the two first driving wheels 331. The first support member 310 has two connecting parts, and the two connecting parts are respectively connected to the two first driven wheels 380, thereby ensuring the stability of the mirror 200 when rotating around the east-west direction.

[0087] In addition, it should be noted that since the two first driven wheels 380 are oppositely arranged, therefore, if the mirror 200 is to be rotated driven by the first driven wheels 380, it is necessary to make the rotation directions of the two first driven wheels 380 opposite to their own rotation directions. That is to say, the rotation directions of the two first driving wheels 331 need to be set in the opposite direction, that is, the rotation directions of the two first driving motors are opposite.

[0088] Correspondingly, the second driving member 360 is connected to the output end of the second driving member 360, so that it can rotate driven by the second driving member 360. The second driven wheel 390 is sleeved on the second rotating shaft 350 and is engaged with the second driving wheel 361.

[0089] Specifically, both the second driving wheel 361 and the second driven wheel 390 are helical gears and are arranged perpendicular to each other. The second rotating shaft 350 is arranged in the north-south direction. When the second driving member 360 drives the second driving wheel 361 to rotate, since the second support member 340 is fixedly connected to the base 100, therefore, the second driving member 360 and the second driving wheel 361 can rotate around the north-south direction under the meshing action with the second driven wheel 390, thereby realizing the rotation of the mirror 200 in the north-south direction. At the same time, with the cooperation of helical gears, multiple tooth pairs bear the load, improving the load-bearing capacity of the gears and ensuring the stability of the transmission.

[0090] Among them, the second support member 340 can be directly connected to the second driven wheel 390 or directly connected to the second rotating shaft 350. This embodiment does not impose any restrictions on this.

[0091] Meanwhile, in this embodiment, the number of the second driving member 360, the second driving wheel 361, and the second driven wheel 390 is two. The two second driving members 360 are both arranged on the connecting member 370. The two second driving wheels 361 are respectively connected to the output ends of the two second driving members 360 in a corresponding manner. The two second driven wheels 390 are oppositely arranged at both ends of the second rotating shaft 350 and are respectively engaged with the two second driving wheels 361. The second support member 340 has two connecting portions, and the two connecting portions are respectively connected to the two second driven wheels 390, thereby ensuring the stability of the mirror 200 when rotating around the north-south direction.

[0092] In addition, it should be noted that since the two second driven wheels 390 are oppositely arranged, if the mirror 200 is to be rotated driven by the second driven wheels 390, it is necessary to make the rotation directions of the two second driven wheels 390 opposite to their own, that is to say, the rotation directions of the two second driving wheels 361 need to be set oppositely, that is, the rotation directions of the two second driving motors are opposite.

[0093] In an alternative embodiment, the mirror 200 includes a mirror surface 210 and a folding mechanism 220. The mirror surface 210 is arranged on the folding mechanism 220. The folding mechanism 220 is configured to extend or contract to adjust the reflection focus of the mirror surface 210.

[0094] Specifically, the mirror surface 210 is responsible for reflecting the sunlight at a specific angle, that is, focusing the sunlight on the heat collecting pipe 400, so that the heat collecting pipe 400 absorbs and converts solar energy.

[0095] Among them, when the mirror 200 rotates driven by the two-axis tilting assembly 300, due to the influence of the external environment and the accuracy limitation problem of the two-axis tilting assembly 300 itself, after the mirror 200 rotates, the condensing axis may deviate from the heat collecting pipe 400, thereby affecting the energy collection efficiency of the heat collecting pipe 400. If the deviation amount of the condensing axis is too large, the heat collecting pipe 400 will not be able to receive enough solar radiation energy and thus cannot work properly.

[0096] Therefore, to solve the above problems, the mirror 200 provided in this embodiment includes a mirror surface 210 and a folding mechanism 220. The folding mechanism 220 can extend or contract, thereby driving the mirror surface 210 to extend or contract, and further adjusting the condensing axis of the mirror surface 210 to be located at the heat collecting pipe 400, ensuring that the condensing focus always remains on the heat collecting pipe 400, thereby ensuring the stable operation of the two-axis tilting solar concentrator.

[0097] Among them, in this embodiment, the opening and closing mechanism 220 can use a flexible material as a support structure, and realize the extension and contraction of the mirror surface 210 by changing the shape and stress state of the flexible material.

[0098] It should be noted that in other embodiments, the structure of the opening and closing mechanism 220 can be adaptively selected according to actual needs, and this embodiment does not impose any restrictions on this.

[0099] In an exemplary embodiment, the opening and closing mechanism 220 can also use a motor to drive a push rod to perform a linear motion, and convert the linear motion into the extension and contraction of the mirror surface 210 through a conversion mechanism.

[0100] In an alternative embodiment, the opening and closing mechanism 220 includes:

[0101] At least two link assemblies 221, including a first link 2211 and a second link 2212 arranged in a cross manner, the first link 2211 and the second link 2212 are hinged, the first link 2211 is connected to the second link 2212 in an adjacent link assembly 221, and the second link 2212 is connected to the first link 2211 in an adjacent link assembly 221;

[0102] At least two third support members 222, correspondingly arranged on the link assembly 221, and the mirror surface 210 is arranged on the third support member 222;

[0103] A third driving member 223, arranged on one of the first links 2211, and the third driving member 223 is configured to drive the first link 2211 to rotate relative to the second link 2212.

[0104] Specifically, in this embodiment, the link assembly 221 is a unit that constitutes the opening and closing mechanism 220. Each link assembly 221 includes a first link 2211 and a second link 2212 arranged in a cross manner. The third driving member 223 is arranged on one of the first links 2211, so that the first link 2211 and the second link 2212 can generate relative rotation after being subjected to a driving force. The first link 2211 in each link assembly 221 is connected to the second link 2212 in an adjacent assembly, and the second link 2212 is connected to the first link 2211 in an adjacent assembly. Furthermore, a continuous chain is formed by multiple link assemblies 221, enabling all link assemblies 221 to work together to achieve overall extension or contraction.

[0105] At the same time, since the third support member 222 is arranged on the link assembly 221 to support and fix the mirror surface 210, as the link assembly 221 extends and contracts, it can drive the mirror surface 210 to change with the movement of the link assembly 221 through the third support member 222, thereby realizing the adjustment of the light-gathering axis.

[0106] Among them, in this embodiment, the third driving member 223 is a motor. In other embodiments, the type and specifications of the third driving member 223 can also be adaptively selected according to needs, and this embodiment does not impose any restrictions on this.

[0107] In an alternative embodiment, the link assembly 221 further includes a third link 2213. The number of the first links 2211 and the second links 2212 is two each. The two first links 2211 and the two second links 2212 are arranged oppositely, and both ends of the third link 2213 are respectively connected to the two first links 2211 or the two second links 2212.

[0108] Specifically, in this embodiment, in each link assembly 221, the number of the first links 2211 and the second links 2212 is two each. The two first links 2211 and the two second links 2212 are arranged oppositely and are connected by the third link 2213, so that the stress generated during the movement of the link assembly 221 can be dispersed by the third link 2213, the risk of local damage is reduced, and the stability of the entire link assembly 221 is improved.

[0109] Specifically, in this embodiment, the two sets of oppositely arranged first links 2211 and second links 2212 are respectively located on both sides of the third support member 222, so as to provide stable support for the third support member 222, and the two sets of oppositely arranged first links 2211 and second links 2212 are connected by the third link 2213, ensuring the stability of the mirror 210 when moving driven by the folding mechanism 220.

[0110] At the same time, by connecting the two sets of oppositely arranged first links 2211 and second links 2212 through the third link 2213, the coordinated movement between the two sets of first links 2211 and second links 2212 can be made smoother and more accurate, reducing the problem of movement incoordination caused by mechanical friction or transmission error.

[0111] Among them, the number of the third links 2213 can also be multiple. The multiple third links 2213 can be used to connect the opposite ends of the two first links 2211, the opposite ends of the two second links 2212 or other oppositely arranged parts, and this embodiment does not impose any restrictions on this.

[0112] In an alternative embodiment, the dual-axis tilting solar concentrator further includes two heat conduction tubes 500, and the two heat conduction tubes 500 are respectively communicated with the two heat collection tubes 400 located on both sides.

[0113] Specifically, in this embodiment, two heat conduction tubes 500 are respectively connected to both ends of the heat collection tube 400. The heat conduction tubes 500 are filled with a heat storage medium, so as to transfer the heat storage medium to the heat collection tube 400 for heating, and then exchange the heat stored in the heat storage medium with an external power generation device or a device that needs to be heated, realizing the effective utilization of solar energy.

[0114] Specifically, in this embodiment, the two heat conduction tubes 500 are connected to each other and form a closed-loop pipeline with the heat collection tube 400. The heat conduction tube 500 on one side is filled with a normal-temperature heat storage medium. The heat storage medium is transferred to the heat collection tube 400 through the heat conduction tube 500, enabling it to enter the heat collection tube 400 to absorb solar heat energy. After absorbing sufficient solar heat energy, the heat storage medium is transferred to the heat conduction tube 500 on the other side and exchanges heat with an external power generation device or a device that needs to be heated. In this process, the heat in the heat storage medium is gradually released, the temperature gradually decreases, and finally it returns to the heat conduction tube 500 at the initial position and is transferred to the heat collection tube 400 again for heating, thereby realizing the function of storing and transferring heat energy through the heat storage medium and achieving the recycling of the heat storage medium.

[0115] Among them, the heat storage medium can be molten salt or heat-conducting oil.

[0116] Meanwhile, it should be noted that in order to ensure the smooth flow of the heat storage medium, a circulation pump can be provided on the heat conduction tube 500 to drive the flow of the heat storage medium.

[0117] In an alternative embodiment, the heat conduction tube 500 has a telescopic part 511, and the telescopic part 511 can be telescoped to adjust the length of the heat conduction tube 500.

[0118] Specifically, in order to ensure that the heat collection tube 400 is always located on the light-gathering axis of the reflector 200. Therefore, in this embodiment, the heat collection tube 400 is arranged on the two-axis tilting assembly 300 or the reflector 200 through a heat collection tube bracket to ensure that the heat collection tube 400 and the reflector 200 can rotate synchronously.

[0119] When the two-axis tilting assembly 300 drives the reflector 200 to rotate, the heat collection tube 400 will rotate relative to the base 100, resulting in a change in the distance between the heat collection tube 400 and the heat conduction tube 500. Therefore, in this embodiment, the heat conduction tube 500 has a telescopic part 511, and the telescopic part 511 can be extended or contracted to adjust the length of the heat conduction tube 500.

[0120] Among them, the telescopic part 511 can be a corrugated structure, and the length of the heat conduction tube 500 is adjusted by the expansion and contraction of the corrugations.

[0121] In other embodiments, the telescopic part 511 can also be other structures capable of achieving telescoping, and this embodiment does not impose any restrictions thereon.

[0122] In an alternative embodiment, the heat conduction tube 500 includes a first sub-tube 510 and a second sub-tube 520 that are connected and communicate with each other. The first sub-tube 510 is connected and communicates with the heat collecting tube 400. The first sub-tube 510 is rotatably connected to the second sub-tube 520, and the second sub-tube 520 is used to communicate with an external device.

[0123] Specifically, in this embodiment, the first sub-tube 510 is used to connect the heat collecting tube 400, the second sub-tube 520 is used to communicate with an external device, and the first sub-tube 510 and the second sub-tube 520 are rotatably connected. When the biaxial tilting assembly 300 drives the heat collecting tube 400 to rotate, the height of the heat collecting tube 400 will change. Therefore, in this embodiment, the first sub-tube 510 and the second sub-tube 520 are rotatably connected to adapt to the height change of the heat collecting tube 400.

[0124] Specifically, when the biaxial tilting assembly 300 drives the heat collecting tube 400 to rotate, the distance between the heat collecting tube 400 and the heat conduction tube 500 increases or decreases. At this time, the first sub-tube 510 and the second sub-tube 520 rotate relative to each other, increasing or decreasing the angle between them to adapt to the height change of the heat collecting tube 400.

[0125] It should be noted that, in this embodiment, the first sub-tube 510 and the second sub-tube 520 are connected by a rotary joint. In other embodiments, the first sub-tube 510 and the second sub-tube 520 can also be rotationally connected through other structures, and this embodiment does not impose any restrictions thereon.

[0126] In addition, it should be noted that, in this embodiment, the external device can be a storage tank for the heat storage medium to transfer the heat storage medium into the heat conduction tube 500, or it can be other external devices, and this embodiment does not impose any restrictions thereon.

[0127] In an alternative embodiment, the base 100 includes a truss 110 and a support base 120. The truss 110 is disposed on the support base 120, and both the biaxial tilting assembly 300 and the reflector 200 are disposed on the truss 110.

[0128] Specifically, in this embodiment, the support base 120 serves as the basic part of the base 100, bearing the weight of the entire biaxial tilting solar concentrator and stably fixing it on the ground or other mounting surfaces. The design of the support base 120 needs to consider the bearing capacity of the ground, the total weight of the system, and various environmental factors that may be encountered, such as wind force, vibration, etc., to ensure the stable operation of the biaxial tilting solar concentrator.

[0129] Secondly, the truss 110 is disposed on the support base 120 to form a robust frame structure. In this embodiment, the truss 110 is formed by connecting multiple rods or beams through nodes, such that when the truss 110 bears a load, the force can be dispersed to each rod, thereby improving the overall load-bearing capacity and stability. At the same time, the design of the truss 110 also facilitates installation and adjustment, and parameters such as its height and angle can be adjusted as needed to adapt to different application scenarios and installation requirements.

[0130] Other implementation schemes of the embodiments of the present application will be readily conceived by those skilled in the art after considering the specification and practicing the invention disclosed herein. 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 well-known common general knowledge or conventional technical means in the technical field not disclosed in the embodiments of the present application. The specification and the 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.

[0131] 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 dual-axis tilting solar concentrator, characterized in that, Comprising: A base (100); A reflector (200) disposed on the base (100), the reflector (200) being configured to reflect sunlight; A two-axis tilting assembly (300) disposed on the base (100) and connected to the reflector (200), the two-axis tilting assembly (300) being configured to drive the reflector (200) to rotate about the east-west direction and / or the north-south direction; A heat collecting pipe (400) located on the optical axis of the reflector (200) for absorbing the sunlight reflected by the reflector (200).

2. The dual-axis tilting solar concentrator according to claim 1, wherein The two-axis tilting assembly (300) includes: A first support member (310) connected to the reflector (200); A first rotating shaft (320) disposed on the first support member (310) and arranged along the east-west direction; A first driving member (330), the first driving member (330) being configured to drive the first rotating shaft (320) to rotate so as to drive the reflector (200) to rotate along the east-west direction; A second support member (340) connected to the base (100); A second rotating shaft (350) disposed on the second support member (340) and arranged along the north-south direction; A second driving member (360), the second driving member (360) being configured to drive the second rotating shaft (350) to rotate so as to drive the reflector (200) to rotate along the north-south direction; A connecting member (370) located between the first driving member (330) and the second driving member (360) and respectively connected to the first driving member (330) and the second driving member (360).

3. The two-axis tilting solar concentrator device according to claim 2, wherein, The two-axis tilting assembly (300) further includes: A first driving wheel (331) connected to the output end of the first driving member (330); A first driven wheel (380) sleeved on the first rotating shaft (320) and cooperating with the first driving wheel (331); A second driving wheel (361) connected to the output end of the second driving member (360); A second driven wheel (390) sleeved on the second rotating shaft (350) and cooperating with the second driving wheel (361).

4. The two-axis tilting solar concentrator device according to claim 1, characterized in that, The reflector (200) includes a mirror surface (210) and a folding and unfolding mechanism (220), the mirror surface (210) being disposed on the folding and unfolding mechanism (220), and the folding and unfolding mechanism (220) being configured to expand or contract to adjust the reflection focus of the mirror surface (210).

5. The two-axis tilting solar concentrator according to claim 4, characterized in that, The folding and unfolding mechanism (220) includes: At least two link assemblies (221), including a first link (2211) and a second link (2212) arranged in a cross manner, the first link (2211) and the second link (2212) being hinged, the first link (2211) being connected to the second link (2212) in the adjacent link assembly (221), and the second link (2212) being connected to the first link (2211) in the adjacent link assembly (221); At least two third support members (222), correspondingly arranged on the link assembly (221), and the mirror surface (210) is arranged on the third support members (222); A third driving member (223), arranged on one of the first links (2211), and the third driving member (223) is configured to drive the first link (2211) to rotate relative to the second link (2212).

6. The two-axis tilting solar concentrator according to claim 5, characterized in that, The link assembly (221) further includes a third link (2213). The number of the first links (2211) and the second links (2212) is two each. The two first links (2211) and the two second links (2212) are arranged oppositely. Two ends of the third link (2213) are respectively connected to the two first links (2211) or the two second links (2212).

7. The two-axis tilting solar concentrator according to any one of claims 1-6, characterized in that, There are also two heat conduction tubes (500), and the two heat conduction tubes (500) are respectively connected and communicated with the two heat collecting tubes (400) located on both sides.

8. The two-axis tilting solar concentrator according to claim 7, wherein, The heat conduction tube (500) has a telescopic part (511), and the telescopic part (511) can be telescoped to adjust the length of the heat conduction tube (500).

9. The two-axis tilting solar concentrator according to claim 7, wherein, The heat conduction tube (500) includes a first sub-tube (510) and a second sub-tube (520) which are connected and communicated. The first sub-tube (510) is connected and communicated with the heat collecting tube (400). The first sub-tube (510) is rotatably connected to the second sub-tube (520), and the second sub-tube (520) is used for being connected and communicated with an external device.

10. The two-axis tilting solar concentrator according to any one of claims 1-6, characterized in that, The base (100) includes a truss (110) and a support base (120). The truss (110) is arranged on the support base (120). The two-axis tilting assembly (300) and the reflector (200) are both arranged on the truss (110).

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