CN114623607B - Variable parabolic type light-gathering heat-collecting device based on fixed reflection - Google Patents

Variable parabolic type light-gathering heat-collecting device based on fixed reflection Download PDF

Info

Publication number
CN114623607B
CN114623607B CN202210180079.5A CN202210180079A CN114623607B CN 114623607 B CN114623607 B CN 114623607B CN 202210180079 A CN202210180079 A CN 202210180079A CN 114623607 B CN114623607 B CN 114623607B
Authority
CN
China
Prior art keywords
reflector
module
rod
adjusting
reflecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210180079.5A
Other languages
Chinese (zh)
Other versions
CN114623607A (en
Inventor
余雷
李俊娇
陆玉正
王军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Suoleyou Energy Saving Technology Co ltd
Original Assignee
Nanjing Suoleyou Energy Saving Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Suoleyou Energy Saving Technology Co ltd filed Critical Nanjing Suoleyou Energy Saving Technology Co ltd
Priority to CN202210180079.5A priority Critical patent/CN114623607B/en
Publication of CN114623607A publication Critical patent/CN114623607A/en
Application granted granted Critical
Publication of CN114623607B publication Critical patent/CN114623607B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/11—Driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/13—Transmissions
    • F24S2030/134—Transmissions in the form of gearings or rack-and-pinion transmissions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The invention discloses a variable parabolic type light-gathering and heat-collecting device based on fixed reflection, which comprises a reflecting plate, a rotating rod module, an adjusting reflecting plate supporting module, a receiver module and a linkage rod, wherein the rotating rod module is arranged on the reflecting plate; the adjusting type reflector supporting module is used for fixing the reflector and adjusting the radian of the reflector, one end of the linkage rod is rotationally connected with the rotating rod module, the other end of the linkage rod is rotationally connected with the adjusting type reflector supporting module, and the receiver module moves while driving the reflector to change the linearity and the focus through the linkage rod. The light-gathering device has the advantages of being capable of automatically fine-adjusting the light-gathering plate, good in light-gathering effect, few in rotating parts, low in tracking precision requirement, high in effective utilization rate of unit occupied area, high in device stability and low in construction and maintenance cost.

Description

Variable parabolic type light-gathering heat-collecting device based on fixed reflection
Technical Field
The invention relates to a solar heat collection device, in particular to a variable parabolic light gathering heat collection device based on fixed reflection, and belongs to the technical field of solar energy utilization.
Background
In order to convert solar energy into higher-grade heat energy, a working medium with higher temperature needs to be obtained through a condensation mode, wherein the condensation mode comprises a line focusing mode (a groove mode and a linear Fresnel mode) and a point focusing mode (a tower mode and a disc mode), and the line focusing mode is popularized and applied more due to low cost and wide application range.
The current line focusing mode also has the following defects: 1) The heat collecting device has higher construction cost and has unobvious advantages compared with the traditional heat collecting device and other energy sources; 2) The maintenance cost is high, firstly, the light reflecting plate is exposed in the air for a long time, dust, fallen leaves and the like can influence the light reflecting effect, the light reflecting plate is troublesome to clean, meanwhile, the light reflecting plate can be influenced by wind, rain, sand and dust, the light reflecting rate is fast to decay, and the service life of the device is short; secondly, a large number of rotating parts exist, the structure is complex, and the failure rate is high. 3) The solar energy utilization rate of the ground per unit area is low, because the rotation of the reflecting plates is needed to leave a certain interval between the reflecting plate arrays in order to avoid mutual shielding, and the solar energy utilization rate of the ground per unit area of the trough type heat collector and the linear Fresnel type heat collector is only about 55% and 65%. In addition, the trough type heat collector has the defects of heavy weight, high wind resistance, high tracking precision requirement and the like, and the linear Fresnel type heat collector has the defects of low condensation ratio and the like.
The problems are solved, the reflector is fixedly placed, the receiver moves along with light, the construction and maintenance cost of the heat collecting device is obviously reduced, and meanwhile, the solar energy utilization rate of the unit area ground can be up to 90 percent, see the reflective fixed line focusing heat collecting unit and the reflective fixed line focusing heat collecting device (202110052075.4) and the reflective fixed light focusing heat collecting device adopting the rotating rod type adjusting receiver (202110052076.9). However, when the incident angle of sunlight deviates greatly, the focal spot formed by sunlight is too large to influence the condensing effect, and in some cases, the method is not suitable for being adopted, if the condensing effect is improved by rotating the reflecting plate, the cost is increased, and the condensing advantage of the fixed reflecting plate is lost.
Disclosure of Invention
Technical problems: the invention aims to overcome the defects of the existing line focusing heat collecting device, and provides the line focusing heat collecting device which has the advantages of low cost, good light collecting effect, high solar energy utilization rate, low investment cost, high unit area utilization rate, high device stability, light weight and low construction and maintenance cost.
The technical scheme is as follows: in order to solve the technical problems, the application provides a variable parabolic light-gathering heat-collecting device based on fixed light reflection, which comprises a light-reflecting plate, a linkage rod, a rotating rod module, a receiver module and an adjusting light-reflecting plate supporting module; the upper surface of the reflecting plate is a reflecting surface, the reflecting surface is a downward concave arc surface, so that the reflecting surface forms a reflecting groove, the reflecting groove extends along an axis direction, and the reflecting plate is of a fixed structure; the linkage rod is in a long bar shape, and two ends of the linkage rod are provided with reserved holes; the rotating rod module comprises a rotating rod module supporting rod, a rotating shaft, a rotating rod, a receiver fixing frame, a balancing weight, a power device and a connecting rod; the lower end of the rotating rod module supporting rod is fixed on the ground, the upper end of the rotating rod module supporting rod is provided with a rotating shaft, one end of the rotating shaft is fixedly connected to the rotating rod, and the other end of the rotating shaft is connected with the power device; a plurality of columnar connecting rods are arranged on the rotating rod at positions close to the rotating shaft, the linkage rod is rotationally connected with the connecting rods through reserved holes at the upper end, two ends of the rotating rod are respectively connected with the receiver fixing frame and the balancing weight, the power device drives the rotating shaft and the rotating rod to rotate, the rotating rod modules are positioned on two sides of the reflecting plate, and the receiver fixing frame is positioned above the reflecting plate; the receiver module comprises a straight-through type vacuum heat collecting pipe which is fixedly arranged on a receiver fixing frame; the adjusting type reflector supporting module is positioned below the reflector and used for fixing the reflector and adjusting the radian of the reflector, and the linkage rod is rotationally connected with the adjusting type reflector supporting module through a reserved hole at the lower end; when the incident angle of sunlight changes, the power device adjusts the position of the receiver module by rotating the rotating rod, and meanwhile, the rotating rod drives the adjusting type reflector supporting module to adjust the linearity of the reflector through the linkage rod, so that the linear focus of the reflector is positioned at the position of the receiver module.
1. The smaller the angle of the incident light deviating from the axis of the parabola, the better the focusing effect after reflection; 2. in the lighting time period, the change range of the elevation angle of the sun light in the north-south direction (the east-west axial direction of the collector is the incident angle of the collector) in one year is about +/-40 degrees. The application has adopted the reflector panel fixed place based on above-mentioned principle, and the mode that the receiver removed. However, for the early and late winter and summer, the angle of the incident light deviating from the axis of the parabola is larger, so that the condensing effect is affected, and the heat collecting system is difficult to operate normally. The parabolas of each point of the focus on the receiver track are compared, the linear shape of each parabola in the reflector area is found to be relatively close, and the focus of the parabola of the reflector can be close to the position of the receiver as much as possible by applying a force to a position, close to the receiver, of the reflector on the reflector, so that the condensing effect is improved and optimized, and the fixed reflector condensing device can be applied to various situations.
According to the light-focusing device, due to the design of the linkage rod and the adjusting type reflector supporting module, when the angle of incident light changes, the reflector can be finely adjusted while the receiver moves, so that the parabolic linear focus of the reflector is positioned at the receiver, and the light-focusing effect is ensured; meanwhile, the reflector does not need to be rotated, so that the fixed reflector has the advantage of a light gathering mode; the fine adjustment of the reflecting plate does not need an additional power device, and the reflecting plate adjusting device is driven by the linkage rod, so that the structure is simple, and the adjusting precision is high; through changing the hookup location of gangbar and connecting rod and regulation formula reflector panel support module, can adapt to the environment and the demand of different applications, application scope is wide.
The adjusting type reflector supporting module comprises a reflector bottom fixing rod, a reflector end fixing rod, a reflector supporting cross rod, an adjusting screw, an adjusting nut, an adjusting module cross rod, an adjusting module vertical rod, a buffer spring and a reflector supporting vertical rod; the bottom fixing rods of the reflecting plates are long and are fixedly connected to the lower parts of the reflecting plates to fix the linear shape of the reflecting plates; the fixing rods at the end parts of the reflecting plates are c-shaped strip rods, and the fixing rods at the end parts of the reflecting plates are clamped at the two ends of the reflecting plates; the bottom of the bottom fixing rod of one reflecting plate is fixedly connected with the buffer spring, and the bottoms of the bottom fixing rods of the other reflecting plates and the bottoms of the end fixing rods of the two reflecting plates are fixedly connected with the adjusting screw rod; the reflector plate supports the horizontal pole and supports the montant through the reflector plate and fix subaerial, be equipped with a plurality of preformed holes on the reflector plate and support the horizontal pole, adjusting screw passes the preformed hole, the cover has 2 adjusting nut that are located reflector plate respectively and support the horizontal pole top and below on the adjusting screw, buffer spring lower extreme fixed connection is to the upper end of adjusting module montant, adjusting module montant passes the preformed hole on the reflector plate and supports the horizontal pole, adjusting module montant's lower extreme is connected to adjusting module horizontal pole, adjusting module horizontal pole's tip and gangbar rotate and are connected.
(1) The height, radian and angle of the reflecting plate can be finely adjusted within a certain range by utilizing the adjusting mechanism, so that the reflecting plate reaches the set state of the area; (2) the cross rod of the adjusting module is driven to move up and down through the linkage rod, so that the linearity of the reflecting plate is finely adjusted; (3) through the selection of the connection position of the linkage rod and the connecting rod and the design of the buffer spring, the linear change of the reflecting plate is consistent with the designed linear change; (4) the support adjusting structure is simple, the cost is low, the operation is easy to adjust, and the stability is good.
Further, the receiver module further comprises a CPC reflector which is fixed on the receiver fixing frame and is positioned on the upper side of the straight-through type vacuum heat collecting tube, one part of sunlight reflected by the reflector directly irradiates the straight-through type vacuum heat collecting tube, and the other part of sunlight reflected by the CPC reflector irradiates the straight-through type vacuum heat collecting tube.
The CPC reflector can further improve the condensation ratio of the heat collecting device and reduce the tracking precision requirement.
Further, the reflector adopts a reflector or a reflective aluminum plate.
Further, the power device comprises a servo motor, a speed reducer and a rotating gear.
Further, the radial cross section of the reflecting surface of the reflecting plate is a part of a parabola, and the reflecting surface of the reflecting plate is asymmetric relative to the symmetry axis of the parabola.
The application also has all advantages of the fixed reflector condensing mode: the number of rotating parts is small, the tracking precision requirement is low, and the investment cost of rotating equipment and control equipment can be reduced; the unit occupied area has high solar energy utilization rate (up to 95 percent), small light-gathering light spots and full utilization of solar energy; the wind resistance and the stability of the device are good, the weight is light, and the building and maintenance cost is low.
Drawings
Fig. 1 is a schematic structural view of a variable parabolic concentrating and heat collecting device based on fixed reflection.
Fig. 2 is a schematic structural view of the turning rod module.
Fig. 3 is a schematic structural view of an adjustable reflector support module.
Fig. 4 is a schematic structural view of the receiver module.
Fig. 5 is a design aid of a variable parabolic concentrating collector based on stationary reflection.
Wherein: 1 is a reflector, 2 is a rotating rod module, 3 is an adjusting reflector support module, 4 is a receiver module, 5 is a linkage rod, 21 is a rotating rod module support rod, 22 is a rotating shaft, 23 is a rotating rod, 24 is a receiver fixing frame, 25 is a balancing weight, 26 is a power device, 27 is a connecting rod, 31 is a reflector bottom fixing rod, 32 is a reflector end fixing rod, 33 is a reflector support cross rod, 34 is an adjusting screw, 35 is an adjusting nut, 36 is an adjusting module cross rod, 37 is an adjusting module vertical rod, 38 is a buffer spring, 39 is a reflector support vertical rod, 41 is a straight-through vacuum heat collecting tube, 42 is a CPC reflector, 61 is a reflector parabolic intercepting section, 62 is a receiver track circle, 63 is a parabola, 64 is a parabola b, 65 is a parabola c, 66 is a parabola b focus, 68 is a c focus.
Detailed Description
Please refer to fig. 1-4.
The variable parabolic concentrating and heat collecting device based on fixed reflection comprises:
the upper surface of the reflector 1 is a reflecting surface, the reflecting surface is a downward concave arc surface, so that the reflecting surface forms a reflecting groove, the reflecting groove extends along an axial direction, the reflector 1 is of a fixed structure, the reflector 1 adopts a reflecting aluminum plate, and the radial section of the reflecting surface of the reflector 1 is a part of a parabola and is asymmetric relative to the symmetry axis of the parabola.
The linkage rod 5, the linkage rod 5 is rectangular shaft-like, and the both ends of linkage rod 5 are equipped with the preformed hole.
The rotating rod module 2 comprises a rotating rod module supporting rod 21, a rotating shaft 22, a rotating rod 23, a receiver fixing frame 24, a balancing weight 25, a power device 26 and a connecting rod 27; the lower end of the rotating rod module supporting rod 21 is fixed on the ground, the upper end of the rotating rod module supporting rod 21 is provided with a rotating shaft 22, one end of the rotating shaft 22 is fixedly connected to a rotating rod 23, and the other end of the rotating shaft 22 is connected with a power device 26; a plurality of columnar connecting rods 27 are arranged on the rotating rod 23 at positions close to the rotating shaft 22, the linkage rod 5 is rotationally connected with the connecting rods 27 through reserved holes at the upper end, two ends of the rotating rod 23 are respectively connected with the receiver fixing frame 24 and the balancing weight 25, and the power device 26 drives the rotating shaft 22 and the rotating rod 23 to rotate; the rotating rod modules 2 are positioned on two sides of the reflecting plate 1, and the receiver fixing frame 24 is positioned above the reflecting plate 1.
The receiver module 4, the receiver module 4 includes a through-type vacuum heat collecting pipe 41 and a CPC reflector 42, the through-type vacuum heat collecting pipe 41 and the CPC reflector 42 are fixedly mounted on the receiver fixing frame 24, and the CPC reflector 42 is located on the upper side of the through-type vacuum heat collecting pipe 41. A part of sunlight reflected by the reflector 1 is directly irradiated onto the through-type vacuum heat collecting tube 41, and a part of sunlight is reflected by the CPC reflector 42 and irradiated onto the through-type vacuum heat collecting tube 41. The length of the straight-through type vacuum heat collecting tube 41 is 2m, and a DN16 stainless steel tube (outer diameter 22 mm) is adopted as a metal tube inside the straight-through type vacuum heat collecting tube 41.
The adjusting type reflector supporting module 3 is positioned below the reflector 1 and used for fixing the reflector 1 and adjusting the radian of the reflector 1, and the linkage rod 5 is rotationally connected with the adjusting type reflector supporting module 3 through a reserved hole at the lower end; when the incident angle of sunlight changes, the power device 26 adjusts the position of the receiver module 4 by rotating the rotating rod 23, and simultaneously drives the adjusting type reflector supporting module 3 to adjust the linear shape of the reflector 1 by the linkage rod 5, so that the linear focus of the reflector 1 is realized on the receiver module 4; the power unit 26 includes a servo motor, a speed reducer, and a rotating gear.
The adjusting type reflector supporting module 3 comprises a reflector bottom fixing rod 31, a reflector end fixing rod 32, a reflector supporting cross rod 33, an adjusting screw 34, an adjusting nut 35, an adjusting module cross rod 36, an adjusting module vertical rod 37, a buffer spring 38 and a reflector supporting vertical rod 39; the reflector bottom fixing rods 31 are long strips, and a plurality of reflector bottom fixing rods 31 are fixedly connected to the lower part of the reflector 1 and used for fixing the reflector 1; the reflector end fixing rods 32 are c-shaped long bars, and the reflector end fixing rods 32 are clamped at two ends of the reflector 1; the bottom of one reflector bottom fixing rod 31 is fixedly connected with a buffer spring 38, the bottoms of the rest reflector bottom fixing rods 31 and the bottoms of two reflector end fixing rods 32 are fixedly connected with an adjusting screw 34, and the reflector bottom fixing rods 31 are connected with the reflector 1 through magnetic adsorption; the reflector support cross bar 33 is fixed on the ground through a reflector support vertical bar 39, a plurality of preformed holes are formed in the reflector support cross bar 33, an adjusting screw 34 penetrates through the preformed holes, 2 adjusting nuts 35 respectively located above and below the reflector support cross bar 33 are sleeved on the adjusting screw 34, the lower ends of the buffering springs 38 are fixedly connected to the upper ends of adjusting module vertical bars 37, the adjusting module vertical bars 37 penetrate through the preformed holes in the reflector support cross bar 33, the lower ends of the adjusting module vertical bars 37 are connected to an adjusting module cross bar 36, and the ends of the adjusting module cross bars 36 are rotationally connected with the linkage bars 5.
In the embodiment, the variable parabolic concentrating and heat collecting device array based on fixed reflection consists of 6 variable parabolic concentrating and heat collecting device units based on fixed reflection, wherein 2 units are arranged in each row, 3 rows are arranged in total, and the axial direction of the straight-through type vacuum heat collecting tube 41 is the east-west direction; the area of the reflector plate 1 of each variable parabolic light-gathering heat-collecting device based on fixed reflection is 0.85m 2 mm=1.7m 2 The device height was about 1.7m. Variable parabolic concentrating and heat collecting device array total lighting area based on fixed reflection is 1.7x6=10.2 m 2 Rated heat collection power is 7.5kW, the total cost is about 3 ten thousand yuan, and the light concentration ratio is 38.6. The opening width of the CPC reflector 42 is 70.8mm and the acceptance angle of the CPC is 60 °.
Referring to fig. 5, the parabolic line a63, the parabolic line b64, and the parabolic line c65 are coincident at two ends of the parabolic cut-out section 61 of the reflector, that is, two ends of the reflector 1; the focus of parabolic a focus 66, parabolic b focus 67, parabolic c focus 68 are on the receiver track circle 62; when the incident angle of sunlight is 50 degrees, the reflecting plate 1 adopts a parabolic curve a63, reflected light is converged at a parabolic curve a focus 66, when the incident angle of sunlight is 60 degrees, the reflecting plate 1 adopts a parabolic curve b64, reflected light is converged at a parabolic curve b focus 67, and when the incident angle of sunlight is 70 degrees, the reflecting plate 1 adopts a parabolic curve c65, and reflected light is converged at a parabolic curve c focus 68. As can be seen from the enlarged partial view of fig. 5, the lower right side of the parabolic section 61 of the reflector has a small linear deviation of the three parabolas, and the lower right side of the parabolic shape of the reflector 1 needs to be moved upward to some extent when the receiver moves from the parabolic a focus 66 to the parabolic c focus 68.
According to the principle shown in fig. 5, when the incident angle of sunlight is increased (for example, from 50 ° to 70 °), the power device 26 drives the rotating rod 23 to rotate, so that the receiver module 4 moves from the parabolic a focus 66 to the parabolic c focus 68, and the rotating rod 23 drives the adjusting module cross rod 36 to move upwards through the linkage rod 5 while rotating, so as to push the linearity of the reflecting plate 1 to change, and the parabola a63 changes to the parabola c65, so that sunlight is focused on the receiver module 4 after being reflected by the reflecting plate 1.
The light reflecting plate can be automatically fine-tuned, the light focusing effect is good, and the solar energy utilization rate is high; the number of rotating parts is small, the tracking precision requirement is low, and the investment cost of rotating equipment and control equipment can be reduced; the effective utilization rate of the unit occupied area is high (about 94 percent); the wind resistance is good, the stability of the device is high, and the weight is light; and meanwhile, the method has the advantage of low construction and maintenance cost.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention.

Claims (6)

1. The variable parabolic concentrating and heat collecting device based on fixed reflection is characterized by comprising a reflector, a linkage rod, a rotating rod module, a receiver module and an adjusting reflector supporting module; the upper surface of the reflecting plate is a reflecting surface, the reflecting surface is a downward concave arc surface, so that the reflecting surface forms a reflecting groove, the reflecting groove extends along an axis direction, and the reflecting plate is of a fixed structure; the linkage rod is in a long bar shape, and two ends of the linkage rod are provided with reserved holes; the rotating rod module comprises a rotating rod module supporting rod, a rotating shaft, a rotating rod, a receiver fixing frame, a balancing weight, a power device and a connecting rod, wherein the lower end of the rotating rod module supporting rod is fixed on the ground; the rotating rod modules are positioned on two sides of the reflecting plate, and the receiver fixing frame is positioned above the reflecting plate; the receiver module comprises a straight-through type vacuum heat collecting pipe which is fixedly arranged on a receiver fixing frame; the adjusting type reflector supporting module is positioned below the reflector and used for fixing the reflector and adjusting the radian of the reflector, the linkage rod is rotationally connected with the adjusting type reflector supporting module through a reserved hole at the lower end, when the incident angle of sunlight changes, the power device adjusts the position of the receiver module by rotating the rotating rod, and meanwhile, the rotating rod drives the adjusting type reflector supporting module to adjust the linear shape of the reflector through the linkage rod, so that the linear focus of the reflector is positioned at the position of the receiver module; the adjusting type reflector supporting module comprises a reflector bottom fixing rod, a reflector end fixing rod, a reflector supporting cross rod, an adjusting screw, an adjusting nut, an adjusting module cross rod, an adjusting module vertical rod, a buffer spring and a reflector supporting vertical rod; the bottom fixing rods of the reflecting plates are long and are fixedly connected to the lower parts of the reflecting plates to fix the linear shape of the reflecting plates; the fixing rods at the end parts of the reflecting plates are c-shaped strip rods, and the fixing rods at the end parts of the reflecting plates are clamped at the two ends of the reflecting plates; the bottom of the bottom fixing rod of one reflecting plate is fixedly connected with the buffer spring, and the bottoms of the bottom fixing rods of the other reflecting plates and the bottoms of the end fixing rods of the two reflecting plates are fixedly connected with the adjusting screw rod; the reflector plate supports the horizontal pole and supports the montant through the reflector plate and fix subaerial, be equipped with a plurality of preformed holes on the reflector plate and support the horizontal pole, adjusting screw passes the preformed hole, the cover has 2 adjusting nut that are located reflector plate respectively and support the horizontal pole top and below on the adjusting screw, buffer spring lower extreme fixed connection is to the upper end of adjusting module montant, adjusting module montant passes the preformed hole on the reflector plate and supports the horizontal pole, adjusting module montant's lower extreme is connected to adjusting module horizontal pole, adjusting module horizontal pole's tip and gangbar rotate and are connected.
2. The variable parabolic concentrating and heat collecting device based on stationary reflection according to claim 1, wherein the receiver module further comprises a CPC reflector fixed to the receiver fixing frame and located at an upper side of the through-type vacuum heat collecting tube, and a part of sunlight reflected by the reflector is directly irradiated onto the through-type vacuum heat collecting tube, and a part of sunlight reflected by the CPC reflector is irradiated onto the through-type vacuum heat collecting tube.
3. The variable parabolic concentrating and heat collecting device based on fixed reflection according to claim 1, wherein the reflecting plate adopts a flexible reflecting mirror or a reflecting aluminum plate.
4. The stationary reflective variable parabolic concentrator collector of claim 1, wherein the power plant comprises a servo motor, a speed reducer, and a rotating gear.
5. The variable parabolic concentrating and heat collecting apparatus of claim 1 wherein the radial cross section of the reflecting surface of the reflector is a portion of a parabola, the reflecting surface of the reflector being asymmetric with respect to the axis of symmetry of the parabola.
6. The variable parabolic concentrating and heat collecting device based on stationary reflection according to claim 1, wherein the bottom fixing rod of the reflector is connected to the reflector by means of adhesive or magnetic attraction.
CN202210180079.5A 2022-02-26 2022-02-26 Variable parabolic type light-gathering heat-collecting device based on fixed reflection Active CN114623607B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210180079.5A CN114623607B (en) 2022-02-26 2022-02-26 Variable parabolic type light-gathering heat-collecting device based on fixed reflection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210180079.5A CN114623607B (en) 2022-02-26 2022-02-26 Variable parabolic type light-gathering heat-collecting device based on fixed reflection

Publications (2)

Publication Number Publication Date
CN114623607A CN114623607A (en) 2022-06-14
CN114623607B true CN114623607B (en) 2023-06-13

Family

ID=81900319

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210180079.5A Active CN114623607B (en) 2022-02-26 2022-02-26 Variable parabolic type light-gathering heat-collecting device based on fixed reflection

Country Status (1)

Country Link
CN (1) CN114623607B (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6818818B2 (en) * 2002-08-13 2004-11-16 Esmond T. Goei Concentrating solar energy receiver
CN201265961Y (en) * 2007-03-26 2009-07-01 董文书 Groove shaped solar heat collector
WO2011086825A1 (en) * 2010-01-18 2011-07-21 日立造船株式会社 Solar light collecting device and solar heat collecting facility
CN107328114A (en) * 2017-08-22 2017-11-07 南京索乐优节能科技有限公司 A kind of solar energy heat collector using adjustable curved reflecting plate
CN108759111A (en) * 2018-07-12 2018-11-06 山东智热取暖设备有限公司 Reflective mirror field
CN112728778A (en) * 2021-01-15 2021-04-30 南京索乐优节能科技有限公司 Reflector seasonal adjustment type light-gathering and heat-collecting device
CN214501764U (en) * 2021-01-15 2021-10-26 南京索乐优节能科技有限公司 Linkage rotating rod type fixed reflector heat collecting device
CN214501765U (en) * 2021-01-15 2021-10-26 南京索乐优节能科技有限公司 Linkage sliding rod type fixed reflector heat collecting device
CN112815538B (en) * 2021-01-15 2022-05-13 南京索乐优节能科技有限公司 Reflection fixed type line focusing heat collection unit and reflection fixed type line focusing heat collection device

Also Published As

Publication number Publication date
CN114623607A (en) 2022-06-14

Similar Documents

Publication Publication Date Title
CN103238033B (en) Solar energy collector system
CN111089431B (en) Array type fixed heat collector rotating paraboloid solar light-gathering and heat-collecting system
JP6342632B2 (en) Solar concentrator
CN112728778A (en) Reflector seasonal adjustment type light-gathering and heat-collecting device
CN200965358Y (en) Solar collecting plate and truss for trough-focus solar collector
CN202334374U (en) Linear focusing and condensing photovoltaic power generation device
CN103836809A (en) Multi-disk confocal tower Fresnel solar concentrator system
CN114623607B (en) Variable parabolic type light-gathering heat-collecting device based on fixed reflection
CN214501764U (en) Linkage rotating rod type fixed reflector heat collecting device
CN214501765U (en) Linkage sliding rod type fixed reflector heat collecting device
CN102466329A (en) Solar energy collection device
CN106369845A (en) Transmission light-condensation tracking type solar heat collection device
CN216977213U (en) Fixed light-focusing heat collector with adjustable focus
CN216977212U (en) Fixed reflecting plate heat collector adopting transmission mirror to improve light condensation
CN216977210U (en) Solar heat collector with adjustable inclination angle
CN216409357U (en) Medium-temperature heat collection and radiation refrigeration double-effect device adopting sliding rod type fixed light reflecting plate for light condensation
CN106091425A (en) Asymmetric groove type solar heat collector in conjunction with glass sunlight house
CN112815538B (en) Reflection fixed type line focusing heat collection unit and reflection fixed type line focusing heat collection device
CN111624755B (en) Solar light condensing device
CN212511854U (en) Multi-dimensional combined adjustable CPC heat collecting device
CN112013552B (en) Mirror holder of heliostat
CN112815539B (en) Reflector fixed type light-gathering and heat-collecting device adopting rotating rod type adjusting receiver
CN214333075U (en) Reflector seasonal adjustment type light-gathering and heat-collecting device
CN210663403U (en) Giant groove type light-gathering and heat-collecting device
CN108981190B (en) Omnibearing tracking parabolic mirror heat energy absorption system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant