Double-shaft groove type solar thermal collector

Abstract

The utility model discloses a double-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 mechanism and a supporting mechanism, the supporting mechanism is connected with a rotating mechanism, the rotating mechanism drives the reflecting mirror to act, and the rotating mechanism comprises a horizontal rotating part and a pitching rotating part; the horizontal rotation part is connected with the supporting mechanism, the pitching rotation part is arranged at the upper end of the horizontal rotation part, the horizontal rotation part is connected with the pitching rotation part through a rotation supporting frame, and the reflector is connected with the pitching rotation part through a supporting cross beam. The horizontal rotation part and the pitching rotation part are each provided with a driving part providing rotation power and a rotation component connected with the driving part, and each rotation component comprises a rotation supporting bearing. According to the utility model, the structure is simple, the system is simplified, the stability is good, the sunlight can always irradiate the reflecting mirror through the actions of the horizontal rotation part and the pitching rotation part, the light gathering efficiency is improved, the equipment structure gravity center is stable, and the equipment wind-resistant grade is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of solar energy collector, more specifically, relate to a kind of double-axis trough type solar energy collector. BACKGROUND

[0002] Trough collector is a kind of light heat conversion mode, through focusing, reflection and absorption process realizes the conversion of light energy to heat energy, so that heat exchange medium reaches certain temperature, to meet the needs of different load heat collection device.Trough collector belongs to the category of medium-high temperature collector, can make heat exchange medium obtain relatively high temperature, can be used to thermal power generation, seawater desalination, heating engineering, absorption refrigeration and other life and production fields.Trough collector occupies a dominant position in solar energy utilization system, it provides heat source for system, and its efficiency and investment cost will affect the efficiency and economy of the entire heat collection system.

[0003] The existing trough type solar energy collector is provided with a heat collecting unit composed of a reflector and the like on the upper end of a support shaft, and the heat collecting unit moves horizontally or vertically on the upper end of the support shaft, so that the gravity center position of the heat collector changes with the movement of the heat collecting unit, resulting in poor stability of the heat collector, especially under the influence of adverse weather such as strong wind, the wind resistance of the solar energy collector is poor, and the equipment is easily damaged;the existing technology generally increases the wind resistance of the solar energy collector by increasing relevant wind-resistant structures, resulting in a complex structure, high cost and inconvenient operation of the solar energy collector, which is not conducive to popularization and application.Furthermore, the existing single-axis trough type solar energy collector can only rotate in a fixed single direction, and cannot rotate in all directions, so the light condensing efficiency is low. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of double-axis trough type solar energy collector to the technical problem existing in prior art.

[0005] To solve the above technical problems, the utility model includes reflector, heat collecting mechanism, support mechanism, support mechanism is connected with slewing mechanism, slewing mechanism drives reflector action, slewing mechanism is connected with reflector, slewing mechanism includes horizontal slewing part and pitch slewing part;

[0006] Horizontal slewing part is connected with support mechanism, pitch slewing part is arranged at the upper end of horizontal slewing part, and horizontal slewing part is connected with pitch slewing part by slewing support frame, reflector is connected with pitch slewing part by support crossbeam, horizontal slewing part and pitch slewing part are equipped with the driving part of providing slewing power and the slewing component connected with the driving part, and the slewing component includes slewing support bearing.

[0007] Preferably, the rotary support frame comprises a support body part, a crossbeam support part is connected to the support body part, the crossbeam support part is connected to the support crossbeam through a flange connecting part, the flange connecting part is connected to the pitching rotary part, the lower end of the rotary support frame is connected to the horizontal rotary part, and the horizontal rotary part drives the rotary support frame to rotate horizontally.

[0008] Preferably, the support body part is horizontally arranged, and the crossbeam support part is arranged at the upper end of the support body part and is arranged perpendicularly to the support body part.

[0009] The crossbeam support part comprises a crossbeam support plate, the crossbeam support plate is provided with a mounting hole, the support crossbeam is connected to the flange connecting part through the mounting hole, and the support crossbeam is arranged perpendicularly to the crossbeam support part, and the support crossbeam can rotate horizontally with the rotary support frame.

[0010] Preferably, the support body part is provided with a body support plate, the crossbeam support part is provided with two crossbeam support plates, the crossbeam support plates are fixedly arranged at the upper part of the body support plate, the two crossbeam support plates are arranged in parallel to each other and perpendicularly to the body support plate, the crossbeam support plates are provided with semicircular mounting holes and a plurality of bolt holes, the pitching rotary part is connected to the crossbeam support plates, and a reinforcing part is arranged between the two crossbeam support plates.

[0011] Preferably, the horizontal rotary part is arranged at the upper end of the support mechanism, the horizontal rotary part comprises a first driving part and a first rotary support bearing connected to the first driving part, the first rotary support bearing is horizontally arranged at the upper end of the support mechanism, the rotary support frame is arranged at the upper end of the first rotary support bearing, and the horizontal rotary part adjusts the horizontal azimuth angle of the reflector.

[0012] Preferably, the pitching rotary part is arranged at the side of the rotary support frame, the pitching rotary part comprises a second driving part and a second rotary support bearing connected to the second driving part, the second rotary support bearing is connected to the crossbeam support part, and the pitching rotary part adjusts the pitching angle of the reflector.

[0013] Preferably, the driving part comprises a rotary support speed reducer, the rotary support speed reducer is provided with a power source, the output end of the rotary support speed reducer is provided with a speed reduction mechanism, the speed reduction mechanism is a worm and gear assembly or a planetary gear assembly, the speed reduction mechanism is connected to the rotary part, and torque output is realized.

[0014] Preferably, the reflector is a parabolic trough mirror structure, the non-working surface of the reflector is arranged on the support crossbeam through a plurality of mirror supports, and the reflector moves synchronously with the support crossbeam through the mirror supports.

[0015] The heat collecting mechanism comprises a heat collecting pipe, the heat collecting pipe is arranged at the center focus of the parabolic surface of the front surface of the reflector through a heat collecting pipe support, and the heat collecting pipe is connected to a steam hot water system.

[0016] Preferably, the supporting mechanism comprises a supporting column, the supporting column is vertically arranged, the supporting column is arranged perpendicularly to the supporting beam, and the axial extension end of the supporting column intersects with the axial center end of the supporting beam, and the bottom of the supporting column is provided with a mounting base.

[0017] Preferably, the light control system is connected with the rotating mechanism, the light control system controls the action of the rotating mechanism, and automatic tracking operation of the reflector is realized.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The utility model discloses simple structure, equipment cost is lower, and installation debugging is fast, and stability is good, and the horizontal rotation drive part and the pitch rotation drive part carry out the mirror square azimuth angle and the pitch height angle change adjustment, so that the mirror can be adjusted in real time according to the rotation of the sun, and the heat transfer medium in the heat collecting pipe is heated through the mirror, and is used for external system. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the present application, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0021] Figure 1 It is a front view structural schematic diagram of the heat collector embodiment of the utility model;

[0022] Figure 2 It is a side view structural schematic diagram of the heat collector embodiment of the utility model;

[0023] Figure 3 It is a front view structural schematic diagram of the rotating support frame embodiment of the utility model;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the rotating support frame embodiment of the utility model;

[0025] Figure 5 It is a front view structural schematic diagram of the rotating support frame embodiment of the utility model; Figure 1 It is a front view structural schematic diagram of the rotating support frame embodiment of the utility model;

[0026] Explanation of symbol marks in the drawing:

[0027] 1, mirror; 2, heat collecting mechanism; 21, heat collecting pipe; 3, support mechanism; 31, support column; 32, mounting base; 4, horizontal rotation part; 41, first rotation support bearing; 42, first rotation support reducer; 5, pitch rotation part; 51, second rotation support bearing; 52, second rotation support reducer; 6, rotation support frame; 61, main support plate; 62, beam support plate; 63, reinforcing plate; 7, support beam; 8, lens holder. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the following will further describe the double-shaft single-slot solar heat collector and the slot-type solar heat collecting system provided by the present application in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0029] EMBODIMENT

[0030] Please refer to Figure 1 , Figure 2 The embodiment of the present application provides a double-shaft slot-type solar heat collector, which comprises a mirror 1, a heat collecting mechanism 2 and a support mechanism 3, the support mechanism 3 is connected with a rotation mechanism, the rotation mechanism drives the mirror 1 to move, the rotation mechanism is connected with the mirror 1, and the rotation mechanism comprises a horizontal rotation part 4 and a pitch rotation part 5.

[0031] The horizontal rotation part 4 is connected with the support mechanism 3, the pitch rotation part 5 is arranged at the upper end of the horizontal rotation part 4, the horizontal rotation part 4 is connected with the pitch rotation part 5 through a rotation support frame 6, the mirror 1 is connected with a support beam 7, the mirror 1 is connected with the pitch rotation part 5 through the support beam 7, the horizontal rotation part 4 and the pitch rotation part 5 are each provided with a driving part for providing rotation power and a rotation part connected with the driving part, and the rotation part comprises a rotation support bearing.

[0032] The embodiment of the present application has the advantages of simple structure, low equipment cost, fast installation and debugging, good stability, etc. The horizontal rotation part 4 and the pitch rotation part 5 are used for adjusting the horizontal orientation angle and the pitch height angle of the mirror 1, so that the mirror 1 can be adjusted in real time according to the rotation of the sun, the rotation support bearing of the rotation part is driven to rotate by the driving part, and then the mirror 1 is driven to adjust the angle by the support beam 7. The mirror 1 is not only simple to adjust, stable in driving and high in reliability, but also small in axial size and small in occupied space. The embodiment of the present application changes the disadvantage that the traditional single-shaft solar energy can only rotate in a single direction, realizes automatic tracking rotation of the solar energy in all directions, can maximize the absorption of solar energy in all seasons, and is high in heat collecting efficiency. Moreover, the equipment has stable gravity center, high wind resistance level and tracking precision not affected by external weather.

[0033] In the embodiment, as shown inFigure 1 、 Figure 2 As shown in the drawings, the support mechanism 3 comprises a support column 31 vertically arranged, and a support beam 7 arranged at the upper end of the support column 31, wherein the support column 31 is arranged perpendicularly to the support beam 7, and the axial extension end of the support column 31 intersects with the axial center end of the support beam 7, and the bottom of the support column 31 is provided with a mounting base 32.

[0034] Specifically, the support column 31 is in a cylindrical structure, which is convenient and adaptable to install through the mounting base 32; the upper end of the support column 31 is connected with the horizontal rotation part 4, and the upper end of the support column 31 is connected with the rotation support frame 6 through the horizontal rotation part 4, and the support beam 7 is arranged transversely on the rotation support frame 6.

[0035] As shown in the drawings, Figure 3 、 Figure 4 In this embodiment, the rotation support frame 6 is movably connected to the upper end of the support column 31, and the rotation support frame 6 comprises a support main body part, a beam support part is connected to the support main body part, the beam support part is connected with the support beam 7 through a flange connecting part, the flange connecting part is connected with the pitch rotation part, the lower end of the rotation support frame 6 is connected with the horizontal rotation part 4, and the horizontal rotation part 4 drives the rotation support frame 6 to rotate horizontally.

[0036] Specifically, the support main body part is horizontally arranged, the beam support part is arranged at the upper end of the support main body part and is arranged perpendicularly to the support main body part, the support main body part is provided with a main body support plate 61, the main body support plate 61 is provided with a mounting through hole, and the main body support plate 61 is connected with the rotation part arranged below through the mounting through hole and the bolt holes arranged outside the through hole; the beam support part comprises a beam support plate 62, the beam support plate 62 is provided with a mounting hole, the support beam 7 is connected with the flange connecting part through the mounting hole, and the support beam 7 is arranged perpendicularly to the beam support plate 62, and the support beam 7 can rotate horizontally with the rotation support frame 6.

[0037] The beam support part is provided with two beam support plates 62, the two beam support plates 62 are fixedly arranged at the two ends of the upper part of the main body support plate 61, and the two beam support plates 62 are arranged in parallel to each other and perpendicularly to the main body support plate 61, the beam support plate 62 is provided with a semicircular mounting hole and a plurality of bolt holes, and the pitch rotation part 5 is connected with the beam support plate 62.

[0038] Furthermore, in this embodiment, a reinforcing part is arranged between the two beam support plates 62, the reinforcing part is provided with a reinforcing plate 63 for stabilizing the connection of the beam support plate 62.

[0039] Further, the flange connection part is provided with a connecting flange plate and a fastening bolt matched with the connecting flange plate, the connecting flange plate is provided with bolt mounting holes arranged along the circumferential direction, and the fastening bolt is mounted on the bolt mounting hole and used for fixing the outer ring of the rotary support bearing. The flange provides a standardized interface, ensures the centering and uniform load distribution, and simplifies the installation. Moreover, the flange connection rotary part and the driving part directly drive the mirror to rotate, which omits the intermediate link of the traditional transmission, simplifies the main machine design, and reduces the failure rate.

[0040] In the embodiment, the rotary part rotates around the center of the upper end of the support column 31 under the action of the driving part. Since the horizontal rotary part 4 and the pitching rotary part 5 are adjusted with the center of the upper end of the support column 31, and the center of the support beam 7 is arranged at the upper end of the support column 31, the gravity center of the rotary mechanism always falls on the center position of the upper end of the support column 31, so that the gravity center is stable and the wind resistance level is high.

[0041] In the embodiment, as shown in Figure 2 、 Figure 5 , the horizontal rotary part 4 is arranged at the upper end of the support column 31. The horizontal rotary part 4 includes a first driving part and a first rotary support bearing 41 connected with the first driving part. The first rotary support bearing 41 is horizontally arranged at the upper end of the support column 31, and a rotary support frame 6 is arranged at the upper end of the first rotary support bearing 41. The horizontal rotary part 4 adjusts the horizontal orientation angle of the mirror 1.

[0042] Specifically, the first driving part is provided with a first rotary support reducer 42. The first rotary support reducer 42 drives the first rotary support bearing 41 to rotate, and further drives the rotary support frame 6 and the mirror 1 on the first rotary support bearing 41 to adjust the horizontal orientation angle.

[0043] In the embodiment, the pitching rotary part 5 is arranged at the side of the rotary support frame 6. The pitching rotary part 5 includes a second driving part and a second rotary support bearing 51 connected with the second driving part. The second rotary support bearing 51 is connected with the beam support part. The pitching rotary part 5 adjusts the pitching angle of the mirror 1.

[0044] Specifically, the second driving part is provided with a second rotary support reducer 52. The second rotary support reducer 52 is arranged on the beam support plate 62 of the rotary support frame 6. The second rotary support bearing 51 is connected with the beam support plate 62. Two beam support plates 62 are connected with rotary bearings. The support beam is horizontally arranged at the inner circumferential side of the rotary bearings. The second rotary support reducer 52 drives the second rotary support bearing 51 to rotate, and further drives the support beam 7 and the mirror 1 connected with the second rotary support bearing 51 to adjust the pitching height angle.

[0045] Further, the first rotary support reducer 42 and the second rotary support reducer 52 are each provided with a power source, the output end of the rotary support reducer is provided with a reduction mechanism, the reduction mechanism is connected with the rotary support bearing, and torque output is realized.

[0046] Specifically, the rotary support reducer is fixed on the base of the rotary support bearing through a flange and bolts, the stability of power transmission is ensured, the power source provided on the rotary support reducer can be a motor or a hydraulic motor, the speed is reduced and the torque is increased through the output end reduction mechanism, the reduction mechanism is a worm gear assembly or a planetary gear assembly, the reduction mechanism is engaged and connected with the rotary support bearing, and torque output is realized. The rotary support reducer realizes high reduction ratio through multi-stage gear transmission, converts high-speed low-torque input into low-speed high-torque output, meets the heavy load rotation requirement, and drives stably. In the embodiment, the power after reduction is transmitted to the pinion, the pinion is engaged with the gear ring of the rotary support bearing, the rotary motion is converted into the rotation of the rotary support bearing, and finally the mirror and other load components are driven to realize 360° rotation with the upper end of the support column as the center.

[0047] In the embodiment, the output end of the rotary support reducer is connected with the inner ring of the rotary support bearing through an output shaft or a flange, the reducer provides power, the rotary bearing is driven to rotate through gear or worm gear transmission, and the other side of the rotary support bearing is directly fixed to the support beam through a flange and bolts. When the rotary bearing rotates, the support beam rotates, the reducer is fixed on the equipment base, the static ring of the rotary bearing is connected with the reducer, and the dynamic ring is connected with the support beam through a flange, and a dynamic rotatable structure is formed.

[0048] The utility model discloses a sun azimuth is calculated through astronomical algorithm, and the rotary support reducer drives worm gear to rotate, realizes all-weather horizontal tracking, and moreover, because worm gear transmission has reverse self-locking characteristic, can prevent mirror from deviating due to gravity or wind force effect, and moreover, cooperation electromagnetic clutch device can be locked immediately when emergency power failure or over wind speed, enhances safety and positioning reliability.

[0049] Further, in the embodiment, the first rotary support reducer 42 and the second rotary support reducer 52 are each provided with a power source, the output end of the rotary support reducer is provided with a reduction mechanism, the reduction mechanism is connected with the rotary support bearing, and torque output is realized.

[0050] The rotary support speed reducer integrates a driving power source (such as a motor, a worm) with a rotary support bearing and a speed reduction mechanism, does not need to separately configure components such as a speed reduction box and a shaft coupling, greatly reduces the complexity of a mechanical structure, is compact in installation, small in axial dimension, occupies less space, is suitable for a solar mirror support system with strict space requirements, and is convenient for lightweight design. Moreover, the rotary support speed reducer is directly connected to a mirror support cross beam through a flange, is convenient to drive, and reduces the failure rate.

[0051] The embodiment adopts double-axis tracking precision, can realize high-precision azimuth angle and elevation angle adjustment, ensures that the mirror is real-time aligned with the sun, maximizes the light energy capture efficiency, reduces the mirror angle deviation through accurate tracking, and improves the steam generation efficiency of a photo-thermal power generation system. Moreover, the rotary support bearing can simultaneously bear axial force, radial force and overturning moment, adapts to outdoor strong wind, snow and other harsh environments, ensures stable operation of the system, and has high wind load and load capacity. Moreover, each component adopts high-strength materials and surface treatment processes, can adapt to an extreme temperature range, has wide applicability, and is suitable for centralized photo-thermal power generation projects in desert and high-radiation areas.

[0052] Further, as a preferred embodiment of the utility model, the driving component provided in the elevation rotary part 5 can adopt a heavy-duty electric push rod in addition to the rotary support speed reducer, the electric push rod is connected with the support cross beam, and the support cross beam and the mirror are driven by the electric push rod to adjust the elevation angle.

[0053] In the embodiment, the rotary part is provided with rotary joints required for rotary driving, and the rotary joints can be adaptively arranged in multiple numbers according to the actual connection and use requirements and the rotation needs of the components, and stable rotation transmission is realized through mutual cooperation between the components. The connection relationship between the components can be fixedly connected as required, and can be fixedly connected by bolts and nuts or welded, or other fixed connection modes can be selected. Meanwhile, the power transmission component of the rotary structure can also be other structures that can realize transmission, and the driving of the mirror is realized through the driving component.

[0054] As shown in Figure 1 The mirror 1 is arranged on the support cross beam 7, the length of the support cross beam 7 is adapted to the transverse length of the mirror 1 connected on the heat collector, the axial extension line of the support column 31 intersects with the center of the support cross beam 7 through the size and position setting of the support column 31 and the support cross beam 7, the gravity center of the whole equipment is ensured to be always on the support column 31, the stability and wind resistance level of the equipment are increased, and the service life of the equipment is prolonged.

[0055] In the embodiment, the support cross beam 7 is in square structure, hollow inside, and can be provided with counterweight in the hollow structure of the support cross beam 7, so as to conveniently adjust the gravity center of the equipment and maintain the stability of the equipment.

[0056] Specifically, a flange plate is welded to the outer periphery of the middle part of the support cross beam 7, the flange plate is arranged on the outer periphery of the support cross beam 7, the shape of the flange plate is matched with the side plate of the rotary support frame, and the support cross beam 7 rotates under the action of the rotary bearing arranged on the rotary support frame 6 and the driving part.

[0057] Further, in the embodiment, the specific size and shape of the support column 31 and the support cross beam 7 can be adjusted according to the actual heat collection demand and the applicable scene.

[0058] In the embodiment, as shown in the figure, Figure 1 the reflecting mirror 1 is in parabolic trough mirror structure, the non-working surface of the reflecting mirror 1 is arranged on the support cross beam 7 through a plurality of lens supports 8, the reflecting mirror 1 and the lens support 8 are both provided with two groups and are symmetrically arranged on the left and right sides of the support column 31, the stability of the gravity center of the heat collector is realized, so that when the reflecting mirror 1 is adjusted in real time according to the rotation of the sun, the gravity center of the equipment always falls on the center of the support cross beam 7, that is, the center of the upper end of the support column 31, the overall equipment of the heat collector has good stability and high wind resistance.

[0059] Specifically, the reflecting mirror 1 is composed of a plurality of adjustable arc plates, the non-working surface of the reflecting mirror 1 is supported and connected with a plurality of lens supports 8, the lens support 8 is fixedly connected with the support cross beam 7, the axial center of the support cross beam 7 is connected with the lens support 8, and the reflecting mirror 1 moves synchronously with the support cross beam 7 through the lens support 8.

[0060] Further, the bottom end of the parabolic surface of the reflecting mirror 1 is connected with the lens support 8, the reflecting mirror 1 is designed in sunken structure, the reflecting mirror 1 rotates horizontally on the horizontal plane following the change of sunlight under the action of the horizontal rotary part, and the inclination angle of the reflecting mirror 1 changes under the driving action of the pitch rotary part 5.

[0061] Further, as a preferred embodiment of the utility model, the lens support 8 is in arc plate structure or large-inclination V-shaped structure, and the lens support 8 can be in integral structure or symmetric structure assembled by a plurality of parts.

[0062] Further, the heat collecting mechanism 2 comprises a heat collecting pipe 21, the heat collecting pipe 21 is arranged at the center focus point of the parabolic surface in front of the reflecting mirror 1 through a heat collecting pipe support, a steam hot water system is connected to the heat collecting pipe 21, the steam hot water system is provided with a connecting pipeline, the end of the connecting pipeline is connected with the heat collecting pipe 21, and the heat collecting and heat exchanging demand is realized.

[0063] Specifically, the heat collecting tube 21 is a double-layer vacuum explosion-proof structure, the heat collecting tube 21 is provided with a working medium, and the working medium flows in the heat collecting tube 21 to absorb heat. The steam hot water system comprises a steam tank, a steam pipeline and a driving mechanism, and a circulating loop is formed between the heat collecting tube and the steam tank. The heat collecting tube is used for absorbing solar energy and heating medium such as water, heat conducting oil and molten salt, and can track the sun in real time through the parabolic surface of the trough-shaped reflector, the light concentration ratio is 50-100, the temperature can reach 200-400 DEG C, and the modular design is adopted, each mechanism can adopt a standardized interface, and a plurality of heat collectors are supported in series and parallel connection to form an adaptive heat collecting system.

[0064] When the steam hot water system works, water enters the heat collecting tube 21 from the low end and exits from the high end, the water is heated and heated in the heat collecting tube 21, the hot water rises into the steam tank, the water at the bottom of the steam tank flows into the heat collecting tube 21 to continue convection heating until the required target temperature and pressure are reached, then the steam safety valve is opened, the overheated water generates steam in the space at the top of the steam tank and is discharged, and the heat collecting tube 21 continues to heat, and the heated water continues to circulate due to the temperature difference.

[0065] Further, as a preferred embodiment of the utility model, the reflector 1 and the heat collecting tube 21 are provided with at least one group, and the reflector 1 is symmetrically arranged with the upper end of the supporting column 31 as the center, and the specific number of the reflector 1 and the heat collecting tube 21 can be adapted, increased and adjusted according to the conditions of the actual use scene and the heat supply demand of the steam hot water system used.

[0066] Further, the embodiment also comprises a light control system, the light control system is connected with the rotating mechanism, the light control system controls the action of the rotating mechanism, and automatic tracking operation of the reflector is realized.

[0067] Specifically, the light control system is provided with a control unit and a sun tracking system, the sun tracking system is provided with a sun tracking sensor, the control unit is provided with a GPS / astro algorithm module, and the system is provided with a gyroscope to compensate the installation inclination error, the sun tracking sensor monitors the sun position and the offset in real time, the control unit is triggered to dynamically correct the driving instruction when the deviation exceeds the set value, the rotating mechanism is controlled to act, the position of the reflector is adjusted, and therefore the horizontal position angle and the pitch inclination angle of the heat collector are accurately controlled through mutual cooperation of the modules.

[0068] The control unit of the embodiment adopts an industrial-grade PLC integrated PID control algorithm, the driving instruction is updated once every 5 seconds, and the Modbus communication protocol is supported.

[0069] Further, the optical system is provided with a night reset system and a temperature control system, the night reset system is used to realize the night reset of the mirror, the mirror can be set to the vertical mode in the night, so that the mirror surface can be kept clean, the cleaning work intensity is reduced, and the reflection efficiency is improved.

[0070] Further, in the embodiment, the collector is made of a whole steel structure, is made of high-strength steel and is subjected to zinc immersion corrosion, is firm in structure and long in service life, and is modular in structure and convenient to adapt and adjust.

[0071] The utility model discloses simple structure, equipment cost is lower, installation debugging is fast, and stability is good, and the horizontal rotation part 4 and the pitch rotation part 5 are used to change and adjust the horizontal alignment angle and the pitch height angle of the mirror 1, so that the mirror 1 can be adjusted in real time according to the rotation of the sun, the heat transfer medium in the collector pipe 21 is heated through the mirror 1, and is used for external system, the rotation support bearing of the rotation part is rotated through the driving of the driving part, and then the mirror 1 is adjusted in angle through the support crossbeam 7, which is not only simple and convenient to adjust, stable in driving, high in reliability, small in axial dimension and small in occupied space.

[0072] The utility model discloses compact structure, high precision, and the part carrying capacity is big, is suitable for the use under the severe working condition environment.

[0073] In the description of the utility model, need understanding is, such as the term "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the present application and simplifying the description, and not indicate or imply the indicated device or element must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the limitation of the present application.

[0074] In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0075] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dual-axis trough solar collector comprising a mirror, a heat collecting mechanism, a supporting mechanism, a rotating mechanism connected to the supporting mechanism, the rotating mechanism driving the mirror to move, characterized in that, The rotating mechanism is connected with the reflector, and the rotating mechanism comprises a horizontal rotating part and a pitching rotating part; The horizontal rotating part is connected with the supporting mechanism, the pitching rotating part is arranged at the upper end of the horizontal rotating part, the horizontal rotating part is connected with the pitching rotating part through a rotating support frame, the reflector is connected with the pitching rotating part through a supporting cross beam, the horizontal rotating part and the pitching rotating part are both provided with a driving part for providing rotating power and a rotating part connected with the driving part, and the rotating part comprises a rotating support bearing.

2. A dual axis trench collector solar energy collector according to claim 1, characterized in that, The rotating support frame comprises a supporting main body part, a cross beam supporting part is connected with the supporting main body part, the cross beam supporting part is connected with the supporting cross beam through a flange connecting part, the flange connecting part is connected with the pitching rotating part, the lower end of the rotating support frame is connected with the horizontal rotating part, and the horizontal rotating part drives the rotating support frame to rotate horizontally.

3. A dual axis trench collector solar energy collector according to claim 2, characterised in that, The supporting main body part is arranged horizontally, the cross beam supporting part is arranged at the upper end of the supporting main body part and is arranged perpendicularly to the supporting main body part; The cross beam supporting part comprises a cross beam supporting plate, the cross beam supporting plate is provided with a mounting hole, the supporting cross beam is connected with the flange connecting part through the mounting hole, the supporting cross beam is arranged perpendicularly to the cross beam supporting part, and the supporting cross beam can rotate horizontally along with the rotating support frame.

4. The dual-axis trench collector solar energy collector of claim 2, wherein, The supporting main body part is provided with a main body supporting plate, the cross beam supporting part is provided with two cross beam supporting plates, the cross beam supporting plates are fixedly arranged at the upper portion of the main body supporting plate, the two cross beam supporting plates are arranged in parallel to each other and are arranged perpendicularly to the main body supporting plate, the cross beam supporting plates are provided with semicircular mounting holes and a plurality of bolt holes, the pitching rotating part is connected with the cross beam supporting plates, and a reinforcing part is arranged between the two cross beam supporting plates.

5. The dual-axis trench collector solar energy collector of claim 1, wherein, The horizontal rotating part is arranged at the upper end of the supporting mechanism, the horizontal rotating part comprises a first driving part and a first rotating support bearing connected with the first driving part, the first rotating support bearing is arranged horizontally at the upper end of the supporting mechanism, the rotating support frame is arranged at the upper end of the first rotating support bearing, and the horizontal rotating part adjusts the horizontal azimuth angle of the reflector.

6. The dual-axis trench collector solar energy collector of claim 2, wherein, The pitching rotating part is arranged at the side of the rotating support frame, the pitching rotating part comprises a second driving part and a second rotating support bearing connected with the second driving part, the second rotating support bearing is connected with the cross beam supporting part, and the pitching rotating part adjusts the pitching angle of the reflector.

7. The dual-axis trench collector solar energy collector of claim 1, wherein, The driving part comprises a rotating support speed reducer, the rotating support speed reducer is provided with a power source, the output end of the rotating support speed reducer is provided with a speed reduction mechanism, the speed reduction mechanism is a worm and gear assembly or a planetary gear assembly, the speed reduction mechanism is connected with the rotating part, and torque output is realized.

8. The dual-axis trench collector solar energy collector of claim 1, wherein, The reflector is a parabolic groove mirror structure, a plurality of mirror supports are arranged on the supporting cross beam through the non-working surface of the reflector, and the reflector moves synchronously with the supporting cross beam through the mirror supports. The heat collecting mechanism comprises a heat collecting pipe, which is arranged at the center focus point of the parabolic surface of the front surface of the reflector through a heat collecting pipe support, and a steam hot water system is connected to the heat collecting pipe.

9. The dual-axis trench collector solar energy collector of claim 1, wherein, The support mechanism comprises a support column, which is vertically arranged, and the support column is vertically arranged with the support beam, and the axial extension end of the support column intersects with the axial center end of the support beam, and the bottom of the support column is provided with a mounting base.

10. The dual-axis trench collector solar energy collector of claim 1, wherein, A light control system is further included, which is connected with the rotating mechanism, and the light control system controls the action of the rotating mechanism to realize the automatic tracking operation of the reflector.

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