Groove type solar heat collection assembly

Abstract

The invention discloses a trough type solar heat collection assembly which comprises a rotating support, a collecting lens supporting frame, a plurality of collecting lenses, a plurality of collecting lenses, a plurality of collecting lenses, a plurality of collecting lenses, a plurality of collecting lenses, a plurality of collecting lenses, a plurality of collecting lenses, a plurality of collecting lenses and a plurality of collecting lenses, the base is arranged below the rotating support, one of the rotating support and the base is provided with an arc-shaped sliding rail, the other one of the rotating support and the base is provided with a sliding block matched with the arc-shaped sliding rail, and the base is provided with a driver assembly to drive the rotating support to rotate along the arc-shaped sliding rail; the heat absorption pipe is arranged above the collecting lens supporting frame, and the heat absorption pipe is arranged on the focusing line of the collecting lens face and located on the axis of the arc-shaped sliding rail at the same time. The condensation effect can be improved, and the stability, durability and service life of equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of trough type heat collection equipment, and in particular to a trough type solar heat collection component. Background Art

[0002] With the growth of global energy demand and the improvement of environmental protection awareness, solar energy as a clean and renewable energy has received widespread attention. Trough solar thermal collection systems have been widely used in the field of solar thermal utilization due to their efficient energy conversion capabilities and low cost. Traditional trough solar thermal collection components mainly include key components such as concentrators, drive devices and absorber tubes. Concentrators are usually composed of a series of reflectors that focus sunlight onto the absorber tube to improve energy collection efficiency.

[0003] At present, trough solar collectors are usually follow-up type, that is, the collectors rotate with the concentrators so as to always aim at the sunlight. However, during the long-term rotation of such follow-up collectors, the sealing performance of the rotary joints at both ends will gradually decrease. Since the heat-absorbing medium in the collector needs to work under high temperature and high pressure, the decline in sealing performance will lead to medium leakage, affecting the performance of the collector assembly. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a trough-type solar thermal collector assembly, which can improve the light-collecting effect and improve the stability, durability and service life of the equipment.

[0005] A trough solar thermal collector assembly according to a first aspect of the present invention comprises: A rotating bracket, wherein the rotating bracket is provided with a condenser support frame, and a plurality of condensers are installed on the surface of the condenser support frame to form a condenser mirror surface; A base is arranged below the rotating bracket, one of the rotating bracket and the base is provided with an arc-shaped slide rail, the other is provided with a slider matched with the arc-shaped slide rail, and the base is provided with a driver assembly to drive the rotating bracket to rotate along the arc-shaped slide rail; The heat absorbing tube is arranged above the condenser support frame. The heat absorbing tube is arranged on the focal line of the condenser surface and is located at the axis of the arc-shaped slide rail.

[0006] A trough-type solar thermal collector assembly according to an embodiment of the present invention has at least the following beneficial effects: multiple concentrating mirrors form a continuous concentrating mirror surface. This layout can effectively concentrate sunlight onto the heat-absorbing tube, improve energy collection efficiency, and thus improve the thermal output of the entire system; the base and the rotating bracket are designed with an arc-shaped slide rail and a slider, allowing the rotating bracket to rotate smoothly along an arc path. Combined with the drive assembly on the base, the system can automatically adjust the angle to track the position of the sun, ensuring that the heat-absorbing tube is always in the best light-receiving position, thereby maximizing the use of solar energy resources; the heat-absorbing tube is located on the axis of the arc-shaped slide rail, which ensures that the heat-absorbing tube can remain in the best heat-absorbing position even when the bracket rotates, thereby improving the thermal energy conversion efficiency; the heat-absorbing tube and the rotating bracket are designed to be separated. When the rotating bracket rotates, the heat-absorbing tube remains fixed, so multiple heat-absorbing tubes can be connected by hard pipes without the need for hoses, which provides better safety and reliability, and can also withstand greater pressure inside the tube, thereby obtaining Higher heat collection efficiency, the hard pipe connection is more durable, reducing potential leakage points, simplifying the installation process, and greatly reducing construction and maintenance costs; the connection between the branch and the main line of the heat absorption tube does not need to be connected by a rotary joint, but can be hard-connected, making the system safer and more reliable. During periods of no sunshine, the heat absorption medium can be returned to the insulation tank for storage, avoiding the requirement that the medium must circulate during this period, avoiding a large amount of heat energy loss during the circulation of the heat absorption medium, thereby improving the thermal efficiency of the system. The base is placed under the rotating bracket, which can reduce the area of ​​sunlight exposure, thereby delaying the service life of the base and improving land utilization.

[0007] According to some embodiments of the present invention, the rotating bracket is provided with a plurality of the arc-shaped slide rails along the axial direction of the heat absorbing tube, and the plurality of the arc-shaped slide rails are distributed at intervals. The plurality of arc-shaped slide rails are distributed at intervals along the axial direction of the heat absorbing tube, providing more uniform support points and effectively dispersing the stress borne by the rotating bracket during rotation. This design reduces the load on a single slide rail and improves the structural stability of the entire system.

[0008] According to some embodiments of the present invention, the slider is provided with a roller, and a positioning groove is further provided on the outer side of the arc-shaped slide rail, the width of the positioning groove is adapted to the roller, and the roller is in rolling contact with the bottom wall of the positioning groove. The design of the positioning groove ensures that the roller can roll accurately along the predetermined path, reducing the deviation of the rotating bracket during the movement. This design improves the motion accuracy of the system, so that the heat absorption tube can always be maintained at the best focusing position, thereby improving the energy collection efficiency.

[0009] According to some embodiments of the present invention, the arc-shaped slide rail is provided with a plurality of rollers, the base is provided with a first bracket and a second bracket, and the first bracket and the second bracket are in rolling contact with the rollers. The rolling contact between the first bracket and the second bracket and the rollers provides additional support points, dispersing the weight of the rotating bracket and the focusing mirror mounted thereon. This not only enhances the structural stability of the entire system, but also improves its load-bearing capacity, allowing the system to operate under heavier loads.

[0010] According to some embodiments of the present invention, the condenser support frame is further provided with a support rod, and a bearing is provided at one end of the support rod away from the condenser support frame, and the heat absorption tube is passed through the bearing. The heat absorption tube is fixed to the support rod through the bearing, and can be kept in the best focusing position to ensure that all reflected sunlight is concentrated on the heat absorption tube. This improves the concentration of heat and the efficiency of heat conduction, thereby improving the energy collection capacity of the system.

[0011] According to some embodiments of the present invention, a plurality of support rods are provided, and the plurality of support rods are spaced apart along the axis direction of the arc-shaped slide rail, providing more uniform and extensive support points, effectively dispersing the weight of the heat absorbing tube and its related components, enhancing the structural stability and rigidity of the entire system, and reducing deformation or damage caused by local stress concentration.

[0012] According to some embodiments of the present invention, the bearing is one of a special engineering plastic bearing, a ceramic bearing or a stainless steel bearing, and can work stably for a long time in high temperature, high humidity and other harsh environments, thereby extending the service life of the bearing and reducing the replacement frequency.

[0013] According to some embodiments of the present invention, a connecting piece is provided at the top of the condenser support frame, the connecting piece is extended along the axial direction of the condenser support frame, the connecting piece is provided with a plurality of mounting parts, and the support frame is fixed to the connecting piece through the mounting parts. Through the plurality of mounting parts on the connecting piece, the condenser support frame can be conveniently fixed to the connecting piece. This modular design makes the installation process simpler and faster, and reduces the time and complexity of on-site construction.

[0014] According to some embodiments of the present invention, a slot is provided on the upper portion of the condenser support frame, the slot is adapted to the connector, the connector is installed in the slot, and the top of the connector is flush with the condenser support frame. The design of the connector being directly embedded in the slot simplifies the installation steps. The installer only needs to insert the connector into the slot and fix it, without complicated alignment and adjustment, which greatly shortens the installation time.

[0015] According to some embodiments of the present invention, a driven gear is disposed on the outer side of the rotating bracket, the driver assembly includes a power motor and a driving gear, the driving gear is connected to the power motor by transmission, and the driving gear and the driven gear are meshed for transmission. The mechanical structure of the gear transmission is simple and reliable, and the complexity of the control system is reduced. This not only simplifies the design and manufacturing process of the system, but also reduces maintenance costs and failure rates.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of a trough-type solar thermal collector assembly according to an embodiment of the present invention; Figure 2 is a schematic diagram of a condenser support frame according to an embodiment of the present invention; Figure 3 is a schematic diagram of a rotating bracket and a base according to an embodiment of the present invention; Figure 4 Schematic diagram of a trough type solar collector system according to an embodiment of the present invention.

[0018] Figure numerals: rotating bracket 100; condenser support bracket 110; base 120; heat absorption tube 130; support rod 140; condenser 150; first bracket 160; second bracket 170; driver assembly 180; slot 190; driven gear 200; positioning slot 210; connecting piece 220. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution. In the description of the present invention, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the description of the present specification, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0023] Reference Figures 1 to 4 , a trough type solar thermal collector assembly, comprising: A rotating bracket 100, wherein the rotating bracket 100 is provided with a condenser support frame 110, and a plurality of condensers 150 are mounted on the surface of the condenser support frame 110 to form a condenser mirror surface; The base 120 is disposed below the rotating bracket 100. One of the rotating bracket 100 and the base 120 is provided with an arc-shaped slide rail, and the other is provided with a slider matched with the arc-shaped slide rail. The base 120 is provided with a driver assembly 180 to drive the rotating bracket 100 to rotate along the arc-shaped slide rail. The heat absorbing tube 130 is disposed above the condenser support frame 110 . The heat absorbing tube 130 is disposed on the focal line of the condenser 150 surface and is also located on the axis of the arc-shaped slide rail.

[0024] A plurality of concentrators 150 form a continuous concentrating mirror surface. This layout can effectively concentrate sunlight onto the heat absorbing tube 130, improve energy collection efficiency, and thus enhance the heat output of the entire system. The base 120 and the rotating bracket 100 are designed with an arc-shaped slide rail and a slider, allowing the rotating bracket 100 to rotate smoothly along an arc path. Combined with the drive assembly 180 on the base 120, the system can automatically adjust the angle to track the position of the sun, ensuring that the heat absorbing tube 130 is always in the best light receiving position, thereby maximizing the use of solar energy resources. The heat absorbing tube 130 is located on the axis of the arc-shaped slide rail, which ensures that the heat absorbing tube 130 can remain in the best heat absorption position even when the bracket rotates, thereby improving the heat energy conversion efficiency. The heat absorbing tube 130 and the rotating bracket 100 are designed to be separated. When the rotating bracket 100 rotates, the heat absorbing tube 130 remains fixed, so multiple heat absorbing tubes 130 can be spaced apart. Hard pipes are used for connection instead of hoses, which ensures better safety and can withstand greater pressure inside the pipe, thereby achieving higher heat collection efficiency. Hard pipe connections are more sturdy and durable, reduce potential leakage points, simplify the installation process, and reduce maintenance costs. The connection between the branch and the main line of the heat absorption tube 130 does not require a rotary joint connection, but a hard connection can be used. The system is safer and more reliable. The base 120 is placed under the rotating bracket 100, which can reduce the area of ​​sunlight exposure, thereby delaying the service life of the base 120 and improving the utilization rate of land.

[0025] It is understandable that if Figure 1 As shown, the arc-shaped slide rail is arranged at the bottom of the rotating bracket 100, and the slider is arranged at the top of the base 120. When the driver assembly 180 is started, the arc-shaped slide rail rotates under the limit of the slider. In another embodiment, the arc-shaped slide rail can also be arranged on the base 120, and the slider is correspondingly arranged at the bottom of the rotating bracket 100. When the rotating bracket 100 rotates along the arc-shaped slide rail, the slider slides smoothly in the arc-shaped slide rail.

[0026] It is understandable that the rotating bracket 100 is prefabricated with a reinforced concrete structure, and the condenser support frame 110 is also prefabricated with a reinforced concrete structure. The choice of reinforced concrete not only increases the stability of the overall structure, but also effectively resists the influence of harsh environmental conditions, ensuring the reliability of the equipment in long-term use and reducing maintenance costs. This design is particularly suitable for applications in outdoor environments, can resist natural erosion, and extend the service life of the equipment.

[0027] Along the axial direction of the heat absorbing tube 130, the rotating bracket 100 is provided with a plurality of arc-shaped slide rails, and the plurality of arc-shaped slide rails are distributed at intervals. The plurality of arc-shaped slide rails are distributed at intervals along the axial direction of the heat absorbing tube 130, providing more uniform support points, and effectively dispersing the stress borne by the rotating bracket 100 during rotation. This design reduces the load on a single slide rail and improves the structural stability of the entire system. In this embodiment, two arc-shaped slide rails are provided below the rotating bracket 100, and the two arc-shaped slide rails are respectively provided at both ends of the condenser support frame 110, and the number of the arc-shaped slide rails can be adaptively changed according to the weight and size of the condenser support frame 110.

[0028] Reference Figures 1 to 3 , the slider is provided with a roller, and a positioning groove 210 is also provided on the outer side of the arc-shaped slide rail. The width of the positioning groove 210 is adapted to the roller, and the roller is in rolling contact with the bottom wall of the positioning groove 210. The design of the positioning groove 210 ensures that the roller can roll accurately along the predetermined path, reducing the deviation of the rotating bracket 100 during the movement. This design improves the motion accuracy of the system, so that the heat absorption tube 130 can always be maintained at the optimal focusing position, thereby improving the energy collection efficiency. It can be understood that two positioning grooves 210 can be provided, and the two positioning grooves 210 are respectively provided on both sides of the driven gear 200. This design can improve the stability of the roller during operation and ensure that the roller can operate stably.

[0029] The arc-shaped slide rail is provided with a plurality of rollers, and the base 120 is provided with a first bracket 160 and a second bracket 170, and the first bracket 160 and the second bracket 170 are in rolling contact with the rollers. The rolling contact between the first bracket 160 and the second bracket 170 and the rollers provides an additional support point, dispersing the weight of the rotating bracket 100 and the condenser 150 mounted thereon. This not only enhances the structural stability of the entire system, but also improves its load-bearing capacity, allowing the system to operate under a heavier load.

[0030] The condenser support frame 110 is also provided with a support rod 140, and a bearing is provided at one end of the support rod 140 away from the condenser support frame 110, and the heat absorption tube 130 is passed through the bearing. The heat absorption tube 130 is fixed on the support rod 140 through the bearing, and can be maintained at the best focusing position to ensure that all reflected sunlight is concentrated on the heat absorption tube 130. This improves the concentration of heat and the efficiency of heat conduction, thereby improving the energy collection capacity of the system. There are multiple support rods 140, and multiple support rods 140 are arranged at intervals along the axial direction of the arc-shaped slide rail. More uniform and extensive support points are provided, which effectively disperses the weight of the heat absorption tube 130 and its related components, enhances the structural stability and rigidity of the entire system, and reduces deformation or damage caused by local stress concentration. In this embodiment, the number of support rods 140 is four, and bearings are provided at the tops of the four support rods 140, which not only enhances the stability of the overall structure, but also more effectively shares the pressure from the upper components. The use of bearings enables each supporting point to bear the load evenly, reducing the potential risks caused by excessive force at a single point, thereby improving the reliability and service life of the entire system.

[0031] The bearing is a special engineering plastic bearing, ceramic bearing or stainless steel bearing. It can work stably for a long time in high temperature, high humidity and other harsh environments, thereby extending the service life of the bearing and reducing the replacement frequency.

[0032] A connector 220 is provided at the top of the condenser support frame 110, and the connector 220 is extended along the axial direction of the condenser support frame 110. The connector 220 is provided with a plurality of mounting parts, and the support frame is fixed to the connector 220 through the mounting parts. Through the plurality of mounting parts on the connector 220, the condenser support frame 110 can be conveniently fixed on the connector 220. This modular design makes the installation process simpler and faster, and reduces the time and complexity of on-site construction. It is understandable that the connector 220 and the support frame can be pre-installed in the factory, and the connector 220 can be directly installed on the condenser support frame 110 after arriving at the assembly site. This method not only simplifies the on-site installation process, but also significantly reduces the time required for on-site installation. By completing part of the assembly work in advance in the factory, not only can efficiency be improved, but also the assembly quality can be better controlled to ensure that all components have met the standard requirements before arriving at the site. This saves time, ensures installation accuracy, and improves the implementation efficiency of the overall project.

[0033] The upper part of the condenser support frame 110 is provided with a slot 190, and the slot 190 and the connecting piece 220 are adapted to each other. The connecting piece 220 is installed in the slot 190, and the top of the connecting piece 220 is flush with the condenser support frame 110. The design of the connecting piece 220 directly embedded in the slot 190 simplifies the installation steps. The installer only needs to insert the connecting piece 220 into the slot 190 and fix it, without complicated alignment and adjustment, which greatly shortens the installation time.

[0034] The outer side of the rotating bracket 100 is provided with a driven gear 200, and the drive assembly 180 includes a power motor and a driving gear, the driving gear is connected to the power motor by transmission, and the driving gear and the driven gear 200 are meshed and transmitted. The mechanical structure of the gear transmission is simple and reliable, and the complexity of the control system is reduced. This not only simplifies the design and manufacturing process of the system, but also reduces maintenance costs and failure rates. It is understandable that the drive assembly 180 also includes a reducer, the output shaft of the power motor is connected to the reducer, and the output shaft of the reducer is connected to the driving gear by transmission, thereby increasing the torque. Through the action of the reducer, the torque can be significantly increased, so that the rotating bracket 100 is more stable and powerful when rotating. The design of the reducer makes power transmission more efficient, while also ensuring that the overall operation of the system is more reliable and quiet.

[0035] It is understandable that when the trough solar thermal collector assembly is installed, the first step is to fix the two bases 120 on the pre-prepared ground foundation bolts, ensure that each foundation is firmly connected to the base 120, and maintain horizontal stability. The second step is to install the first bracket 160 and the second bracket 170 through the anchor bolts. The third step is to install the rotating bracket 100 on the first bracket 160, the second bracket 170 and the base 120, and ensure that each component is accurately aligned to ensure the stability of the entire structure. The fourth step is to install the two concentrator support frames 110 on the rotating bracket 100. The fifth step is to install the connector 220 in the slot 190. The sixth step is to install the driver assembly 180 on the base 120, and ensure that the driver assembly 180 is connected to the rotating bracket 100 in a transmission manner. The seventh step is to install four heat absorbing tubes 130 and bearings on the support rod 140 together, and the adjacent heat absorbing tubes 130 are connected by short pipes and penetrated in the bearings. The ninth step is to install the condenser 150 on the rotating bracket 100 .

[0036] Reference Figure 4 , Figure 4The networking mode of multiple trough solar thermal collector assemblies is demonstrated. The heat absorption pipe 130 of each thermal collector assembly is connected through independent branches and finally converged into a main road. Each trough thermal collector assembly can work independently, which is convenient for installation and maintenance. If a component fails, it can be replaced separately without affecting the operation of the entire system. The entire thermal collector system can eliminate the rotary joint connection and greatly reduce the hose connection, improving the safety and reliability of the system.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A trough type solar thermal collector assembly, characterized in that: include: A rotating bracket, wherein the rotating bracket is provided with a condenser support frame, and a plurality of condensers are installed on the surface of the condenser support frame to form a condenser mirror surface; A base is arranged below the rotating bracket, one of the rotating bracket and the base is provided with an arc-shaped slide rail, the other is provided with a slider matched with the arc-shaped slide rail, and the base is provided with a driver assembly to drive the rotating bracket to rotate along the arc-shaped slide rail; The heat absorbing tube is arranged above the condenser support frame. The heat absorbing tube is arranged on the focal line of the condenser surface and is also located on the axis of the arc-shaped slide rail.

2. A trough type solar thermal collector assembly according to claim 1, characterized in that: Along the axial direction of the heat absorbing tube, the rotating bracket is provided with a plurality of the arc-shaped slide rails, and the plurality of the arc-shaped slide rails are distributed at intervals.

3. A trough type solar thermal collector assembly according to claim 2, characterized in that: The sliding block is provided with a roller, and a positioning groove is further provided on the outer side of the arc-shaped sliding rail. The width of the positioning groove is adapted to the roller, and the roller is in rolling contact with the bottom wall of the positioning groove.

4. A trough type solar thermal collector assembly according to claim 2, characterized in that: The arc-shaped slide rail is provided with a plurality of rollers, and the base is provided with a first bracket and a second bracket, and the first bracket and the second bracket are in rolling contact with the rollers.

5. A trough type solar thermal collector assembly according to claim 1, characterized in that: The condenser support frame is also provided with a support rod, and a bearing is provided at one end of the support rod away from the condenser support frame, and the heat absorption tube is passed through the bearing.

6. A trough type solar thermal collector assembly according to claim 5, characterized in that: A plurality of support rods are provided, and the plurality of support rods are arranged at intervals along the axial direction of the arc-shaped slide rail.

7. A trough type solar thermal collector assembly according to claim 5, characterized in that: The bearing is one of a special engineering plastic bearing, a ceramic bearing or a stainless steel bearing.

8. A trough type solar thermal collector assembly according to claim 5, characterized in that: A connecting piece is provided on the top of the condenser support frame. The connecting piece is extended along the axial direction of the condenser support frame. The connecting piece is provided with a plurality of mounting parts. The support frame is fixed to the connecting piece through the mounting parts.

9. A trough type solar thermal collector assembly according to claim 8, characterized in that: The upper part of the condenser support frame is provided with a slot, the slot and the connecting piece are adapted to each other, the connecting piece is installed in the slot, and the top of the connecting piece is flush with the condenser support frame.

10. A trough type solar thermal collector assembly according to claim 1, characterized in that: A driven gear is disposed on the outer side of the rotating bracket. The driver assembly includes a power motor and a driving gear. The driving gear is transmission-connected to the power motor. The driving gear and the driven gear are meshed for transmission.

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