Single-shaft groove type solar thermal collector

Abstract

The utility model discloses a single-shaft groove type solar thermal collector, and belongs to the technical field of solar thermal collectors. The device comprises a reflecting mirror, a heat collecting device and a supporting device, a driving device and a rotating device are connected to the supporting device, the supporting device comprises a supporting stand column, and the reflecting mirror is arranged at the upper end of the supporting stand column through a lens support; the slewing device comprises a slewing mechanism and a slewing driving mechanism, the slewing mechanism comprises a slewing supporting frame and a slewing transmission part, the slewing transmission part is arranged on the slewing supporting frame, the slewing supporting frame is connected with the supporting device, and the slewing driving mechanism drives the slewing mechanism to act to change a horizontal azimuth angle and a pitching elevation angle; and the reflector is driven to perform sun tracking motion. The solar heat collecting device is simple in structure, simplified in system, small in occupied area and good in stability, the rotary mechanism is driven by the rotary driving mechanism to act, sunlight can always irradiate the reflecting mirror, the light collecting efficiency is improved, and the heat collecting power is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar heat collectors, and more specifically relates to a single-axis trough type solar heat collector. Background Art

[0002] Trough collectors are a type of heat collection device that utilizes a photothermal conversion method. Through focusing, reflection, and absorption, they convert light energy into heat energy, allowing the heat exchange medium to reach a certain temperature to meet the needs of different loads. Trough collectors fall into the category of medium- and high-temperature collectors, which can achieve relatively high temperatures for the heat exchange medium and can be used in thermal power generation, seawater desalination, heating projects, absorption refrigeration, and other areas of life and production. Trough collectors occupy a dominant position in solar energy utilization systems, providing the system with a heat source. Their efficiency and investment cost will affect the efficiency and economy of the entire heat collection system.

[0003] Existing trough solar collectors consist of a heat collecting unit composed of reflectors and other components mounted on the upper end of a support shaft. The collector unit moves horizontally or vertically on the upper end of the support shaft, causing the collector's center of gravity to change with the movement of the unit. This deteriorates the collector's stability, especially in severe weather such as strong winds. The wind resistance of the solar collector is poor, which can easily cause equipment damage. Existing technologies generally increase the wind resistance of solar collectors by adding related wind-resistant frames and other structures. This results in a complex structure, high cost, and inconvenient operation, hindering widespread application. Furthermore, existing single-axis trough solar collectors can only rotate in a fixed, unidirectional manner, and cannot perform omnidirectional tracking rotation, resulting in low concentration efficiency. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art and provides a single-axis trough type solar thermal collector.

[0005] In order to solve the above technical problems, the utility model includes a reflector, a heat collecting device, and a supporting device. The supporting device is connected to a driving device and a rotating device. The supporting device includes a supporting column. The reflector is arranged on the upper end of the supporting column through a lens bracket.

[0006] The slewing device includes a slewing mechanism and a slewing drive mechanism. The slewing mechanism includes a slewing support frame and a slewing transmission part. The slewing transmission part is arranged on the slewing support frame. The slewing support frame is connected to the supporting device, and the slewing drive mechanism drives the slewing mechanism to move, change the horizontal azimuth angle and pitch altitude angle, and drive the reflector to perform sun tracking movement.

[0007] Preferably, the rotary transmission part includes a horizontal rotary part and a pitch rotary part. The horizontal rotary part is connected to the pitch rotary part. The rotary mechanism rotates around the upper end center of the supporting column. The horizontal rotary part drives the reflector to rotate horizontally, and the pitch rotary part drives the reflector to change the pitch angle.

[0008] Preferably, the horizontal rotating part includes a horizontal rotating joint and a rotating support bearing connected to it, the pitch rotating part includes a vertical rotating joint and a rotating support bearing connected to it, and an electric push rod is connected to the rotating support frame. The electric push rod is supported by the electric push rod support frame and is arranged above the reflector. The end of the electric push rod is connected to the pitch rotating part, and the electric push rod adjusts the pitch height angle of the reflector.

[0009] Preferably, the heat collecting device includes a heat collecting tube and a heat collecting tube bracket. The heat collecting tube is arranged at the center above the reflector through the heat collecting tube bracket. At least one reflector and heat collecting tube is provided, and the reflectors are symmetrically arranged with the upper end of the supporting column as the center.

[0010] Preferably, the supporting device further comprises a supporting beam mechanism, the supporting beam mechanism is arranged at the upper end of the supporting column, the center of gravity of the supporting beam mechanism is arranged at the upper end of the supporting column, and the lens holder is arranged on the supporting beam mechanism.

[0011] Preferably, the support beam mechanism includes a support beam, which is vertically arranged at the upper end of the support column, and the upper end of the support column is movably connected to the center of the support beam through a rotating mechanism, the lens bracket is connected to the support beam, and the lens bracket and the support beam move synchronously.

[0012] Preferably, a slewing support frame is connected to a slewing support tube, one end of the slewing support tube is connected to the supporting beam, the second end of the slewing support tube is connected to the slewing support frame through a slewing support crank arm, and a support reinforcement tube is provided on the slewing support frame.

[0013] Preferably, the rotary drive mechanism includes a rotary motor and a rotary reducer, the rotary reducer is fixedly arranged on the upper end of the support column through a connecting flange, the rotary motor is connected to the rotary reducer, and the rotary reducer is connected to the rotary support frame.

[0014] Preferably, the heat collector is connected to a steam hot water system, the steam hot water system is provided with a heat transfer oil pipe, and the heat transfer oil pipe is connected to the heat collecting device.

[0015] Preferably, it further includes a control system, wherein the heat collecting device is arranged in the parabolic focusing area on the front of the reflector, and the rotating device performs horizontal rotation or pitch angle change around the center of the upper end of the supporting column;

[0016] The control system is equipped with a fully automatic sun tracking device. The control system controls the movement of the collector and rotates the rotary device to enable the reflector to automatically track sunlight in all weather and all directions.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model has a simple structure, a simplified system, a small footprint, and good stability. The slewing mechanism is driven by a slewing drive mechanism to change the horizontal azimuth angle and the pitching altitude angle, driving the reflector to track the sun, so that the reflector can rotate horizontally and rotate the pitch angle. The reflector can be adjusted in real time according to the rotation of the sun. The focus of the equipment is always kept directly above the middle of the supporting column, maintaining the overall stability of the equipment, with firm support and a stable center of gravity, avoiding the influence of bad weather such as strong winds, and effectively increasing the wind resistance level. The utility model changes the disadvantage of traditional single-axis solar energy that can only rotate in a fixed direction, and realizes the full-dimensional automatic tracking and rotation of solar energy, so that sunlight can always be irradiated on the reflector. The sun and the reflector always maintain a 90° right angle and run directly all year round, improving the concentration efficiency and increasing the heat collection power. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the main structure of the heat collector embodiment of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the main structure of the heat collector embodiment of the utility model Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of a heat collector embodiment of the present utility model;

[0023] Figure 4 This is a partial structural diagram of an embodiment of a heat collector of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of an embodiment of the rotary device of the utility model;

[0025] Figure 6 This is a schematic diagram of a system in which the heat collector of the present invention is applied to a steam heating system.

[0026] Explanation of symbols in the figure:

[0027] 1. Reflector; 2. Heat collecting device; 21. Heat collecting tube; 22. Heat collecting tube bracket; 3. Support device; 31. Support column; 32. Support beam; 4. Drive device; 41. Rotary motor; 42. Rotary reducer; 5. Rotary device; 51. Rotary support frame; 52. Rotary transmission part; 53. Horizontal rotary joint; 54. Rotary support bearing; 55. Vertical rotary joint; 56. Electric push rod; 57. Electric push rod support frame; 58; Rotary support tube; 59. Rotary support crank arm; 6. Lens bracket; 7. Support reinforcement tube; 8. Thermal oil pipe; 9. Water inlet; 10. Water outlet; 11. Steam pressure tank; 12. Automatic water filling level gauge; 13. Steam outlet; 14. Pressure gauge; 15. Safety valve; 16. Check valve; 17. High-pressure water filling pump. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0029] See also Figure 1 The embodiment of the utility model provides a single-axis trough solar collector, including a reflector 1, a heat collecting device 2, and a support device 3. The support device 3 is connected to a driving device 4 and a rotating device 5. The support device 3 includes a support column 31. The reflector 1 is arranged on the upper end of the support column 31 through a lens bracket 6.

[0030] The rotating device 5 includes a rotating mechanism and a rotating drive mechanism. The rotating mechanism includes a rotating support frame 51 and a rotating transmission part 52. The rotating transmission part 52 is arranged on the rotating support frame 51. The rotating support frame 51 is connected to the supporting device 3, and the rotating drive mechanism drives the rotating mechanism to move, change the horizontal azimuth angle and pitch altitude angle, and drive the reflector 1 to perform sun tracking movement.

[0031] The utility model has a simple structure, a simplified system, a small footprint, and good stability. The slewing mechanism is driven by a slewing drive mechanism to change the horizontal azimuth angle and the pitching altitude angle, driving the reflector 1 to track the sun, so that the reflector 1 can rotate horizontally and rotate the pitch angle. The reflector 1 can be adjusted in real time according to the rotation of the sun. The focus of the device is always kept directly above the middle of the supporting column, maintaining the stability of the entire device, with a firm support and a stable center of gravity, avoiding the influence of bad weather such as strong winds, and effectively increasing the wind resistance level. The utility model changes the disadvantage of traditional single-axis solar energy that can only rotate in a fixed direction, realizes the full-dimensional automatic tracking rotation of solar energy, so that sunlight can always be irradiated on the reflector 1. The sun and the reflector always maintain a 90° right angle and run directly all year round, improving the concentration efficiency and increasing the heat collection power.

[0032] In this embodiment, the rotation transmission part includes a horizontal rotation part and a pitch rotation part. The horizontal rotation part is connected to the pitch rotation part. The rotation mechanism rotates around the upper end center of the support column 31. The horizontal rotation part drives the reflector 1 to rotate horizontally, and the pitch rotation part drives the reflector 1 to change the pitch angle.

[0033] Specifically, such as Figure 2-Figure 5 As shown, the horizontal rotating part can drive the reflector 1 to adjust the horizontal azimuth angle, and the pitch rotating part can drive the reflector 1 to adjust the pitch altitude angle. The horizontal rotating part includes a horizontal rotating joint 53 and a rotating support bearing 54 connected thereto, and the pitch rotating part includes a vertical rotating joint 55 and a second rotating support bearing connected thereto, and an electric push rod 56 is connected to the rotating support frame 51. The electric push rod 56 is supported and arranged above the reflector 1 through an electric push rod support frame 57, and the end of the electric push rod 56 is connected to the pitch rotating part.

[0034] In this embodiment, the rotary drive mechanism includes a rotary motor 41 and a rotary reducer 42. The rotary motor 41 and the rotary reducer 42 are horizontal rotary drive components. The rotary motor 41 is connected to the rotary reducer 42, and the rotary motor 41 drives the rotary reducer 42 to operate, realizing a rotation action in the horizontal direction.

[0035] Specifically, the rotary reducer 42 is fixedly arranged on the upper end of the support column 31 through a connecting flange, and the rotary reducer 42 is connected to the rotary support frame 51. The rotary reducer 42 is connected to a support fixing seat and a horizontal rotary joint 53. The support fixing seat and the horizontal rotary joint 53 rotate under the driving action of the reduction motor 41. The horizontal rotary joint 53 is arranged at the inner middle center position of the support fixing seat.

[0036] Furthermore, in this embodiment, if Figure 3 As shown, the electric push rod 56 serves as the pitch and rotation drive component of the reflector 1. The electric push rod 56 is installed on the support beam mechanism at the upper end of the support column 31. The pitch elevation angle of the reflector 1 can be adjusted by the electric push rod 56. The pitch and rotation drive component is installed above the horizontal rotary joint 53 and can be synchronously rotated horizontally under the drive of the horizontal rotary joint 53. The electric push rod 56 is installed above the horizontal rotary unit and, under the action of the horizontal rotary unit, can drive the pitch and rotation unit and the reflector 1 to rotate horizontally for solar tracking operation.

[0037] Furthermore, in addition to the electric push rod 56, the pitch rotation drive component can also use a reduction motor and a supporting reducer to cooperate as needed to adjust the angle of the reflector, and the pitch angle can be adjusted by driving the supporting reducer as a power transmission component through the reduction motor.

[0038] The horizontal rotary joint and the vertical rotary joint provided in this embodiment can be adapted to be provided in multiples according to the actual connection and use requirements and rotation needs of the components, and stable rotation transmission can be achieved through the mutual cooperation between the various components.

[0039] In this embodiment, the support column 31 is arranged vertically, and a structure connected to an external connecting piece is provided on the support column 31, which is convenient to install and has strong installation adaptability; the support device also includes a support beam mechanism, which is arranged at the upper end of the support column 31, the center of gravity of the support beam mechanism is arranged at the upper end of the support column 31, and the lens bracket 6 is arranged on the support beam mechanism.

[0040] Specifically, the support beam mechanism includes a support beam 32, which is horizontally arranged and movably connected to the upper end of the support column 31 through a support seat. The support beam 32 is vertically arranged at the upper end of the support column 31 and the upper end of the support column 31 and the center of the support beam 32 are movably connected through a rotating mechanism. The lens bracket 6 is connected to the support beam 32 and the lens bracket 6 and the support beam 32 move synchronously.

[0041] Furthermore, the supporting beam 32 is arranged at the upper end of the supporting column 31 through the rotating support frame 51, and the rotating support frame 51 is movably connected to the upper end of the supporting column 31, thereby driving the rotating transmission part to rotate around the upper end center of the supporting column 31. Since the horizontal rotating part and the pitch rotating part are both adjusted with the upper end center of the supporting column 31, and the center of the supporting beam 32 is also set at the upper end of the supporting column 31, the center of gravity of the rotating mechanism falls on the center position of the upper end of the supporting column 31, the center of gravity is stable and the wind resistance level is high. Moreover, the electric push rod 56 is connected to the slewing support 51 through the electric push rod support frame 57. The slewing support frame 51 supports the electric push rod 56, and the lower end of the electric push rod 56 is connected to the support beam 32. The lower end of the electric push rod 56 is set at the center position of the support beam 32. The electric push rod 56 can drive the support beam 56 to perform pitch operations, and then drive the reflector to adjust the pitch height angle under the action of the pitch rotating parts such as the vertical rotary joint 55 and the slewing support bearing.

[0042] Specifically, such as Figure 3 As shown, the slewing support frame 51 is a square support structure, and a slewing support tube 58 is connected to the slewing support frame 51. The lower end of the slewing support tube 58 is connected to the supporting beam 32, and the upper end of the slewing support tube 58 is connected to the slewing support frame 51 through a slewing support curved arm 59. There are two slewing support tubes 58, which are respectively arranged at both ends of the slewing support frame 51, and the connection is stable.

[0043] Furthermore, a plurality of support reinforcement tubes 7 are provided on the rotary support frame 51, and the support reinforcement tubes 7 are connected to the rotary support frame 51, and the support reinforcement tubes 7 and the rotary support tube 58 are arranged perpendicular to each other. By providing a plurality of support reinforcement tubes 7, the support stability of the rotary support frame 51 is further increased.

[0044] In this embodiment, Figure 2 、 Figure 3 As shown, the lens bracket 6 is set on the supporting beam 32, and the reflector 1 is set on the supporting beam 32 at the upper end of the supporting column 51 through the lens bracket 6. The reflector 1 moves synchronously with the lens bracket 6 and the supporting beam 32; the lens bracket 6 is adaptively connected to the reflector 1.

[0045] Furthermore, the lens holder 6 is an arc-shaped plate structure or a V-shaped structure with a large inclination angle, and the lens holder 6 is an integral structure or a symmetrical structure assembled by welding multiple parts.

[0046] Specifically, in this embodiment, two groups of reflectors 1 and lens brackets 6 are provided, which are respectively arranged on both sides of the rotary support frame 51 and symmetrically arranged to achieve the stability of the center of gravity of the collector, and the reflectors 1 are stably supported by the lens brackets 6.

[0047] Furthermore, the bottom end of the parabola of the reflector 1 is set on the lens bracket 6, and the reflector 1 as a whole is a sunken structure design, and the lens bracket 6 is set on the supporting beam 32. Since the structure on the supporting beam 32 is a left-right symmetrical structure, when the reflector is adjusted in real time according to the rotation of the sun, the center of gravity of the equipment always falls on the center of the supporting beam 32, that is, directly above the center of the upper end of the supporting column 31, and the overall equipment of the collector has good stability and high wind resistance.

[0048] Furthermore, the reflector 1 follows the supporting beam 32 and can rotate 360 degrees in the horizontal plane under the action of the horizontal rotating part. Under the driving action of the pitch rotating part, the pitch angle of the reflector 1 can range from 0 degrees to 90 degrees.

[0049] In this embodiment, the heat collection device includes a heat collection tube 21 and a heat collection tube bracket 22. The heat collection tube 21 is arranged at the center above the reflector 1 through the heat collection tube bracket 22. A connecting pipe is connected to the support beam 32, and the end of the connecting pipe is connected to the heat collection tube 21.

[0050] Specifically, the connecting pipeline includes a heat transfer oil pipe 8, which is connected to the horizontal rotary joint 53 and the vertical rotary joint 55, and the vertical rotary joint 55 is connected to the horizontal rotary joint 53 through a connecting hose. The length of the connecting hose can be adjusted according to the horizontal rotation and pitch angles.

[0051] Furthermore, as a preferred embodiment of the present invention, at least one reflector 1 and heat collecting tube 21 are provided, and the reflector 1 is symmetrically arranged with the upper end of the supporting column 31 as the center, and the specific number of reflectors 1 can be adapted and increased according to the conditions of the actual use scenario and the heating requirements of the steam hot water system used. The power transmission components used in the rotating device 5 can also be other structures that can realize transmission, such as other driving devices such as a reducer or a worm gear assembly to drive the reflector.

[0052] Furthermore, as a preferred embodiment of the present invention, Figure 2 、 Figure 6 As shown, the heat collector is connected to a steam hot water system, which is provided with a heat transfer oil pipe 8, which is connected to the heat collecting device. The utility model can apply the heat collector to the steam hot water system. The heat collecting pipe 21 of the heat collector is provided with a water inlet 9 and a water outlet 10. The water inlet 9 of the heat collecting pipe 21 is set at the bottom end of the heat collecting pipe 21, and the water outlet 10 of the heat collecting pipe 21 is set at the top end of the heat collecting pipe 21, with water entering from the low end and exiting from the high end. The water outlet 10 of the heat collecting pipe 21 is connected to the water inlet of the steam pressure tank 11 through a connecting pipe. The water outlet provided at the bottom of the steam pressure tank 11 is connected to the water inlet 9 of the heat collecting pipe 21 through a connecting pipe, thereby forming a circulation loop between the heat collecting pipe 1 and the steam pressure tank 11.

[0053] Furthermore, the steam pressure tank 11 is connected to an automatic water replenishment level gauge 12, which controls the water level in the tank. Under the action of the automatic water replenishment level gauge 12, the steam pressure tank 11 maintains a water level that always exceeds the water level from the water outlet 10 of the heat collecting tube 21 to the water inlet of the steam pressure tank 11.

[0054] Furthermore, a steam outlet 13 is provided at the top of the steam pressure tank 11, and a pressure gauge 14 and a safety valve 15 are provided on the steam pressure tank 11. A one-way valve 16 and a high-pressure water supply pump 17 are also provided on the connecting pipeline. When the water level in the steam pressure tank 11 is low, the high-pressure water supply pump 17 adds water to the set water level.

[0055] The working principle of the steam hot water system is as follows: water enters the lower end of the heat collecting tube 21 and exits the higher end. The water is heated and heated in the heat collecting tube 21. The hot water rises and enters the steam pressure tank 11. The water at the bottom of the steam pressure tank 11 is replenished and flows into the heat collecting tube 21 for continuous convection heating until the required target temperature and pressure are reached. Then the steam safety valve is opened, and the superheated water generates steam in the top space of the steam pressure tank 11 and is discharged. The heat collecting tube continues to heat, and the heated water continues to circulate due to convection due to the temperature difference.

[0056] Furthermore, in this embodiment, the overall structure of the solar collector adopts a vertical open trough design, and the reflector 1 is set with an open upward under the support of the lens bracket 6. The front of the reflector 1 is provided with a parabolic focusing area for collecting solar energy. The heat collecting tube 21 is arranged on the upper part of the reflector 1 and in the parabolic focusing area on the front of the reflector 1. The heat collecting tube 21 is provided with a coating for absorbing sunlight reflected by the reflector, and the circulating water in the heat collecting tube 21 is heated by reflecting solar energy through the reflector 1.

[0057] This utility model adopts a single-axis trough structure design, which not only reduces the floor space, but also allows more solar collecting equipment to be added under the same usage area, thereby increasing the concentration usage area. In addition, the overall weight is light, the installation is simple, the steel consumption is reduced, and the equipment cost is low. It is not only suitable for large-scale solar thermal utilization scenarios, but also for use in small areas or environments with relatively poor lighting conditions.

[0058] Furthermore, the present invention's solar collector is also equipped with a control system that controls the collector's operation. The heat collecting device 2 is positioned in the parabolic focusing area on the front face of the reflector. The slewing device 5 rotates horizontally or changes its pitch angle around the center of the upper end of the support column 31. The control system includes a fully automatic solar tracking device that controls the rotation or pitch of the slewing mechanism, enabling the reflector to automatically track sunlight around the clock and in all directions. The control system also includes a reflector fault reset control program. If the pitch drive system fails, the reflector fault reset control program intelligently controls the reflector to return to its initial horizontal position, preventing damage to the equipment. Once the fault is resolved, the reflector can resume operation.

[0059] Furthermore, in this embodiment, a rotary drive device is mounted above the support column 31. The rotary drive device is equipped with a rotary support that drives the relevant equipment to rotate. On sunny days, the fully automatic solar tracking device in the control system automatically generates a signal based on the light intensity to activate the rotary drive motor, driving the rotary support and support frame to rotate perpendicular to the sun and stop. The solar tracker then tracks the sun's movement until the sun sets and enters night mode. The device then automatically rotates to a set position and waits for the next day's operation. This simple structure, low production cost, and unmanned operation can effectively improve the heating efficiency of the solar collector.

[0060] In this embodiment, the control system can control the horizontal rotating part to rotate 360° on the horizontal plane with the upper end of the supporting column 31 as the center, thereby driving the reflector 1 to rotate and adjust within a range of 360° on the horizontal plane; and the pitch rotating part adjusts the pitch height angle with the center of the supporting beam 32. By adjusting the angle of the reflector 1, the reflector 1 can achieve all-weather and all-round sunlight tracking rotation through horizontal rotation and pitch. The sun and the reflector always maintain a 90° right angle to each other all year round, which can maximize the collection and absorption of heat. Not only is the utilization rate of solar energy higher, the concentration efficiency is improved, and the heat collection power is increased, but it is also efficient and convenient to use, thereby improving the economic benefits of the enterprise.

[0061] The utility model has a simple structure, a simplified system, a small footprint, and good stability. The rotary drive mechanism drives the rotary mechanism to change the horizontal azimuth angle and the pitch altitude angle, driving the reflector to track the sun, so that the reflector can rotate horizontally and rotate the pitch angle, and can be adjusted in real time according to the rotation of the sun. The utility model changes the disadvantage of traditional single-axis solar energy that can only rotate in a fixed direction, and realizes the full-dimensional automatic tracking and rotation of solar energy, so that sunlight can always shine on the reflector. The sun and the reflector always maintain a 90° right angle and run directly all year round, improving the concentration efficiency and increasing the heat collection power. In addition, the collector keeps the center of gravity of the equipment always directly above the center of the supporting column. Without adding other auxiliary functional structures such as wind-resistant frames, the wind resistance level is effectively increased, the stability of the equipment is maintained, the support is firm, the center of gravity is stable, and it is avoided from being affected by bad weather such as strong winds from the outside, effectively increasing the wind resistance level.

[0062] In the description of the present invention, it should be understood that terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A single-axis trough solar collector, comprising a reflector, a heat collecting device, and a supporting device, wherein the supporting device is connected to a driving device and a rotating device, and the supporting device comprises a supporting column, characterized in that: The reflector is arranged on the upper end of the support column through a lens bracket; The slewing device includes a slewing mechanism and a slewing drive mechanism. The slewing mechanism includes a slewing support frame and a slewing transmission part. The slewing transmission part is arranged on the slewing support frame. The slewing support frame is connected to the supporting device, and the slewing drive mechanism drives the slewing mechanism to move, change the horizontal azimuth angle and pitch altitude angle, and drive the reflector to perform sun tracking motion.

2. The single-axis trough solar collector according to claim 1, characterized in that: The rotation transmission part includes a horizontal rotation part and a pitch rotation part. The horizontal rotation part is connected to the pitch rotation part. The rotation mechanism rotates around the upper end center of the support column. The horizontal rotation part drives the reflector to rotate horizontally, and the pitch rotation part drives the reflector to change the pitch angle.

3. The single-axis trough solar collector according to claim 2, characterized in that: The horizontal rotating part includes a horizontal rotating joint and a rotating support bearing connected to it, and the pitch rotating part includes a vertical rotating joint and a rotating support bearing connected to it. An electric push rod is connected to the rotating support frame, and the electric push rod is supported by the electric push rod support frame and arranged above the reflector. The end of the electric push rod is connected to the pitch rotating part, and the electric push rod adjusts the pitch height angle of the reflector.

4. The single-axis trough solar collector according to claim 1, characterized in that: The heat collection device includes a heat collection tube and a heat collection tube bracket. The heat collection tube is arranged at the center above the reflector through the heat collection tube bracket. At least one reflector and heat collection tube is provided. The reflectors are symmetrically arranged with the upper end of the support column as the center.

5. The single-axis trough solar collector according to claim 1, characterized in that: The supporting device further includes a supporting beam mechanism, which is arranged at the upper end of the supporting column, the center of gravity of the supporting beam mechanism is arranged at the upper end of the supporting column, and the lens holder is arranged on the supporting beam mechanism.

6. The single-axis trough solar collector according to claim 5, characterized in that: The support beam mechanism includes a support beam, which is vertically arranged at the upper end of the support column, and the upper end of the support column and the center of the support beam are movably connected through the rotating mechanism, and the lens bracket is connected to the support beam and the lens bracket and the support beam move synchronously.

7. The single-axis trough solar collector according to claim 6, characterized in that: The slewing support frame is connected to a slewing support tube, one end of the slewing support tube is connected to the supporting beam, the second end of the slewing support tube is connected to the slewing support frame through a slewing support crank arm, and a support reinforcement tube is provided on the slewing support frame.

8. The single-axis trough solar collector according to claim 1, characterized in that: The rotary drive mechanism includes a rotary motor and a rotary reducer. The rotary reducer is fixedly arranged on the upper end of the support column through a connecting flange. The rotary motor is connected to the rotary reducer, and the rotary reducer is connected to the rotary support frame.

9. A single-axis trough solar collector according to any one of claims 1 to 8, characterized in that: The heat collector is connected to a steam hot water system, the steam hot water system is provided with a heat transfer oil pipe, and the heat transfer oil pipe is connected to the heat collecting device.

10. A single-axis trough solar collector according to any one of claims 1 to 8, characterized in that: It also includes a control system, wherein the heat collecting device is arranged in the parabolic focusing area on the front of the reflector, and the rotating device performs horizontal rotation or pitch angle change around the center of the upper end of the supporting column; The control system is provided with a fully automatic sun tracking device, which controls the action of the heat collector and controls the rotation of the rotary device so that the reflector can automatically track sunlight in all weather and all directions.

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