CN101533147B - A solar focusing apparatus capable of tracking multi-light reflection paraboloid - Google Patents
A solar focusing apparatus capable of tracking multi-light reflection paraboloid Download PDFInfo
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- CN101533147B CN101533147B CN2009103016570A CN200910301657A CN101533147B CN 101533147 B CN101533147 B CN 101533147B CN 2009103016570 A CN2009103016570 A CN 2009103016570A CN 200910301657 A CN200910301657 A CN 200910301657A CN 101533147 B CN101533147 B CN 101533147B
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- light reflection
- reflection paraboloid
- plate
- sunray
- plates
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- 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
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- Mounting And Adjusting Of Optical Elements (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A solar focusing apparatus capable of tracking sun light rays includes a plurality of rotatable light reflection paraboloid plates in parallel arrangement, a confocal axial fixed small light reflection paraboloid plate with dimension smaller than that of the light reflection paraboloid plate is provided in the focal axis adjacent domain of each light reflection paraboloid plate, the slope angles of every small light reflection paraboloid plate are different, and the axial plane of the plurality of small light reflection paraboloid plates are intersected at the same intersecting line or adjacent domain A. A light-heat conversion tube parallel to the focal axis of the light reflection paraboloid plate is provided in the adjacent domain A. The plurality of light reflection paraboloid plates are connected to the sun ray tracing device, and rotate around the focal axis of the light reflection paraboloid plate under the control of the sun ray tracing device, so that its axial plane is parallel to the sun light ray all along. The invention does not need complicated piping, and can assemble the optical energy of the plurality of light reflection paraboloid plates into a same region, thereby having low cost, high light-heat conversion efficiency, and easy implementation.
Description
[technical field]
The present invention relates to solar energy equipment, particularly relate to a kind of solar-energy light collector of following the tracks of sunray.
[background technology]
As everyone knows, sun power is inexhaustible, but people still fail the extensive important energy source of utilizing.Along with the minimizing of fossil energy and rising steadily of price such as coal, oil, rock gases, the mankind directly obtain energy and have become more and more important from sun power.At present existing various solar utilizing equipment are used, as opto-electronic conversion and photo-thermal conversion equipment etc.In relatively large solar concentrating device, a kind of is the slot type system, and another kind is a tower system.Wherein, the slot type system is made of a plurality of slot type light reflection paraboloid plates, and its defective is to be equipped with the photo-thermal crossover connection on each slot type light reflection paraboloid plate focus, and must connect by complicated pipe network, so the cost of manufacture height, poor reliability, photo-thermal conversion efficiency is low.Tower system is to be made of a high tower and a huge light reflection paraboloid plate, this light reflection paraboloid plate can rotate with sunray, with solar light focusing to the photothermal conversion device of cat head, its defective is as will obtain large-area solar energy the time, its solid geometry enormous size, complex structure, the cost height.
[summary of the invention]
The present invention is intended to solve the deficiencies in the prior art, and provide a kind of need not complicated pipelines, the luminous energy of a plurality of light reflection paraboloid plates can be gathered the same area, thereby cost is low, the photo-thermal conversion efficiency height, the solar-energy light collector of followed the tracks of of sunray easy to implement.
For achieving the above object, the invention provides a kind of solar-energy light collector of following the tracks of sunray, this device comprises a plurality of rotatable light reflection paraboloid plates that are arranged in parallel, adjacent domain in the focal axis of each light reflection paraboloid plate is provided with the little light reflection paraboloid plate of the fixed size of a confocal axle less than the light reflection paraboloid plate, the angle of inclination of each little light reflection paraboloid plate has nothing in common with each other, and a plurality of little light reflection paraboloid plates axial plane I separately intersects at same intersection or adjacent domain A.
Little light reflection paraboloid plate is of a size of 1/10th to a thirtieth of light reflection paraboloid board size.
In described intersection or adjacent domain A, be provided with the photo-thermal crossover connection parallel with the focal axis of light reflection paraboloid plate.
A plurality of light reflection paraboloid plates link to each other with the sunray tracking means, and the focal axis around the light reflection paraboloid plate is rotated under the control of sunray tracking means, makes its axial plane parallel with sunray all the time.
A plurality of light reflection paraboloid plates are arranged in parallel along at least one benchmark installed surface B or C, and the inclination angle between benchmark installed surface B and the surface level D is α
1-α
2, the inclination angle between benchmark installed surface C and the surface level D is α
1+ α
2, wherein, α
1Be 0.3～1.5 times of ground axial rake, α
2Be the latitude of solar-energy light collector position, with the latitude value of north latitude be on the occasion of, be negative value with the latitude value of south latitude, the intersection of benchmark installed surface B, C and surface level is along the east-west direction setting.
The focal axis of each the light reflection paraboloid plate that is provided with along benchmark installed surface B or C is along the east-west direction setting, and with parallel along benchmark installed surface B, C.
Between each light reflection paraboloid plate of benchmark installed surface B or C setting, pass through rod hinge connection, and one of them light reflection paraboloid plate is provided with a driving mechanism, this driving mechanism links to each other with the sunray tracking means, this driving mechanism drives one of them light reflection paraboloid plate rotation according to the control signal of sunray tracking means, and drive other light reflection paraboloid plate by connecting rod and rotate synchronously, make its axial plane parallel with sunray all the time.
A plurality of light reflection paraboloid plates along benchmark installed surface B or C setting rotate around the axis respectively, the center line of this rotating shaft overlaps with described focal axis, rotating shaft is connected on the support at light reflection paraboloid plate two ends rotationally, and a plurality of light reflection paraboloid plates respectively are connected in the rotating shaft by the support bar at two ends.
The two ends of little light reflection paraboloid plate are fixed on the support.
Driving mechanism comprises worm gear tooth bar, worm screw, stepper motor, and wherein, the worm gear tooth bar is fixed on the support bar, and stepper motor is fixed on the support, and worm screw is connected on the output shaft of stepper motor.
Contribution of the present invention is that it has effectively overcome the defective of traditional slot type system and tower system.Owing to be provided with the much smaller little light reflection paraboloid plate of the size relative with the light reflection paraboloid plate, the luminous energy of a plurality of light reflection paraboloid plates can be gathered the same area, and need not complicated pipelines, thereby greatly reduce cost of manufacture, and improved photo-thermal conversion efficiency.And owing to the present invention can be provided with flexibly according to different landform, and be that the plane is provided with, therefore construction and easy for installation, easy to implement.
[description of drawings]
Fig. 1 is the structural upright synoptic diagram of the present invention that benchmark installed surface B is provided with.
Fig. 2 is an one-piece construction synoptic diagram of the present invention.
Fig. 3 is a light path principle figure of the present invention, and wherein, Fig. 3 A is an overall schematic, and Fig. 3 B is the E portion enlarged drawing of Fig. 3 A.
Fig. 4 is the partial enlarged drawing of Fig. 1, and wherein, Fig. 4 A is a F portion enlarged drawing, and Fig. 4 B is the G portion enlarged drawing of Fig. 4 A.
[embodiment]
Consult Fig. 1, Fig. 2, the solar-energy light collector of following the tracks of sunray of the present invention comprises a plurality of light reflection paraboloid plates 10, corresponding a plurality of little light reflection paraboloid plate 20, photo-thermal crossover connection 30, connecting rod 40, driving mechanism 50 and support 60 with it.
Described light reflection paraboloid plate 10 is tabular bodys of the light reflection paraboloid shape of being made by glass, organic glass or plastics, and its length can infinitely prolong, and width is then determined according to employed occasion.One of them side at the light reflection paraboloid plate is coated with reflectorized material, is formed for the mirror surface of reflected sunlight.Among Fig. 1, Fig. 2, a plurality of light reflection paraboloid plates 10 are arranged in parallel along at least one benchmark installed surface B or C, and the length of light reflection paraboloid plate 10 can infinitely prolong as required.In the present embodiment, a plurality of light reflection paraboloid plates 10 are arranged along benchmark installed surface B, C respectively, and the axial plane of each light reflection paraboloid plate 10 parallels.Described benchmark installed surface B, C angle with respect to the horizontal plane are different.Specifically, the inclination angle between benchmark installed surface B and the surface level D is α
1-α
2, the inclination angle between benchmark installed surface C and the surface level D is α
1+ α
2, wherein, α
1Be 0.3～1.5 times of ground axial rake, α
2Be the latitude of solar-energy light collector position, and with the latitude value of north latitude be on the occasion of, be negative value with the latitude value of south latitude, the intersection of benchmark installed surface B, C and surface level is along the east-west direction setting.The focal axis A1 of each the light reflection paraboloid plate 10 that is provided with along said reference installed surface B, C is along the east-west direction setting, and with parallel along benchmark installed surface B, C.Described light reflection paraboloid plate 10 is can be by rotating the movable light reflection paraboloid plate of following the tracks of sunray, and its rotational structure will be described below.
Shown in Fig. 4 A, Fig. 4 B, be provided with a little light reflection paraboloid plate 20 in the adjacent domain of the focal axis A1 of each light reflection paraboloid plate 10 (imaginary axis), its length can infinitely prolong, and width is then determined according to employed occasion.One of them side at little light reflection paraboloid plate 20 is coated with reflectorized material, is formed for the mirror surface of reflected sunlight.These little light reflection paraboloid plate 20 sizes are much smaller than light reflection paraboloid plate 10, and its size only is 1/10th to a thirtieth of light reflection paraboloid plate 10 sizes.This little light reflection paraboloid plate 20 is fixed light reflection paraboloid plate, itself and light reflection paraboloid plate 10 are same focal axis, and the angle of inclination of each little light reflection paraboloid plate has nothing in common with each other, and a plurality of little light reflection paraboloid plates axial plane I separately intersects at same intersection or adjacent domain A.Shown in Fig. 2 and Fig. 3 A, Fig. 3 B, because each little light reflection paraboloid plate 20 is in the adjacent domain of focal axis A1 (imaginary axis) of light reflection paraboloid plate 10, make light reflection paraboloid plate 10 sunshine be reflexed on the light reflection paraboloid of little light reflection paraboloid plate 20, each little light reflection paraboloid plate 20 reflexes to sunshine photo-thermal crossover connection 30 again.As Fig. 2, in the axial plane intersection of described little light reflection paraboloid plate 20 or adjacent domain A, be provided with the photo-thermal crossover connection 30 parallel with the focal axis of light reflection paraboloid plate 10.This photo-thermal crossover connection receives the sunshine of a plurality of little light reflection paraboloid plates 20 reflections, and transform light energy is become heat energy, produces steam and generates electricity.The two ends of a plurality of little light reflection paraboloid plates 20 are fixed on the support 60 by pull bar 21 respectively.
Described light reflection paraboloid plate 10 is rotatable light reflection paraboloid plate, and a plurality of light reflection paraboloid plates 10 link to each other with sunray tracking means (not shown), and described sunray tracking means can be selected general sunray tracking means.A plurality of light reflection paraboloid plates 10 can rotate by the focal axis A1 around light reflection paraboloid plate 10 under the control of sunray tracking means, make its axial plane H parallel with sunray all the time.The rotational structure of light reflection paraboloid plate 10 is shown in Fig. 1, Fig. 4 A, Fig. 4 B, hinged between a plurality of light reflection paraboloid plates 10 by connecting rod 40, and one of them light reflection paraboloid plate is provided with a driving mechanism 50, this driving mechanism 50 comprises worm gear tooth bar 51, worm screw 52, stepper motor 53, wherein, worm gear tooth bar 51 is one section arc-shaped rack, it is fixed on the support bar 12, in this example, two ends at the Width of each light reflection paraboloid plate 10 respectively are fixed with a support bar 12, and the other end of support bar 12 is fixed in the rotating shaft 11.Stepper motor 53 is fixed on the support 60, and this support 60 is triangular in shape, and it is installed in the two ends of the length direction of each light reflection paraboloid plate 10, and its lower end frame is located at ground, and its upper end then is connected with little light reflection paraboloid plate 20.Worm screw 52 is connected on the output shaft of stepper motor 53, and 53 of stepper motors link to each other with the sunray tracking means.This driving mechanism 50 drives one of them light reflection paraboloid plate 10 rotation according to the control signal of sunray tracking means, and rotates synchronously by connecting rod 40 other light reflection paraboloid plates 10 of drive, makes its axial plane parallel with sunray all the time.
As Fig. 4 A, Fig. 4 B, be connected with a rotating shaft 11 rotationally in described support 60 upper ends, the center line of this rotating shaft overlaps with described focal axis, and a plurality of light reflection paraboloid plates 10 respectively are connected in the rotating shaft 11 by the support bar 12 at two ends, and can rotate around its rotating shaft 11 respectively.
Under the situation of a plurality of light reflection paraboloid plates 10, a plurality of little light reflection paraboloid plate 20 and photo-thermal crossover connection 30 limited length, can respectively add a reflecting plate (not shown) at the device two ends, to reduce the loss of incident sunshine perpendicular to the benchmark installed surface.
Principle of work of the present invention is shown in Fig. 2, Fig. 3 A, Fig. 3 B, because there is an angle on the earth's axis and its revolution plane of the earth, cause sunlight all different in the incident angle of North and South direction at the different time of every day and every month, the maximum deviation of the incident angle of the North and South direction of sunlight is an earth's axis inclination alpha in 1 year
1Four times because a plurality of light reflection paraboloid plates 10, a plurality of little light reflection paraboloid plate 20 and photo-thermal crossover connection 30 are along the east-west direction setting.When sunray shines a plurality of light reflection paraboloid plate 10, a plurality of light reflection paraboloid plates 10 turn to correct position under the control of sunray tracking means, make that the axial plane H of light reflection paraboloid plate 10 is parallel with sunray, light is pooled on the public focal axis A1 of light reflection paraboloid plate 10 and little light reflection paraboloid plate 20, and arrive on the light reflection paraboloid of a plurality of little light reflection paraboloid plates 20, and with the mode directive photo-thermal crossover connection 30 of directional light.
Claims (9)
1. the solar-energy light collector that can follow the tracks of sunray, it is characterized in that, it comprises a plurality of rotatable light reflection paraboloid plates (10) that are arranged in parallel, adjacent domain in the focal axis of each light reflection paraboloid plate (10) is provided with the little light reflection paraboloid plate (20) of the fixed size of a confocal axle less than light reflection paraboloid plate (10), the angle of inclination of each little light reflection paraboloid plate has nothing in common with each other, and a plurality of little light reflection paraboloid plates axial plane (I) separately intersects at same intersection or adjacent domain A, described a plurality of light reflection paraboloid plates (10) link to each other with the sunray tracking means, and the focal axis around light reflection paraboloid plate (10) is rotated under the control of sunray tracking means, makes the axial plane of described a plurality of light reflection paraboloid plates parallel with sunray all the time.
2. the solar-energy light collector of following the tracks of sunray as claimed in claim 1 is characterized in that, described little light reflection paraboloid plate (20) is of a size of 1/10th to a thirtieth of light reflection paraboloid plate (10) size.
3. the solar-energy light collector of following the tracks of sunray as claimed in claim 2 is characterized in that, is provided with the photo-thermal crossover connection (30) parallel with the focal axis of light reflection paraboloid plate (10) in described same intersection or adjacent domain A.
4. the solar-energy light collector of following the tracks of sunray as claimed in claim 1, it is characterized in that, described a plurality of light reflection paraboloid plates (10) are arranged in parallel along two benchmark installed surfaces (B, C), and wherein, the inclination angle between a benchmark installed surface (B) and the surface level (D) is α
1-α
2, the inclination angle between another benchmark installed surface (C) and the surface level (D) is α
1+ α
2, wherein, α
1Be 0.3～1.5 times of ground axial rake, α
2Be the latitude of solar-energy light collector position, with the latitude value of north latitude be on the occasion of, be negative value with the latitude value of south latitude, the intersection of each benchmark installed surface (B, C) and surface level is along the east-west direction setting.
5. the solar-energy light collector of following the tracks of sunray as claimed in claim 4 is characterized in that, the focal axis of each the light reflection paraboloid plate (10) that is provided with along benchmark installed surface (B, C) is along the east-west direction setting, and parallel with benchmark installed surface (B, C).
6. the solar-energy light collector of following the tracks of sunray as claimed in claim 4, it is characterized in that, along benchmark installed surface (B, C) hinged between each light reflection paraboloid plate (10) of She Zhiing by connecting rod (40), and one of them light reflection paraboloid plate is provided with a driving mechanism (50), this driving mechanism links to each other with the sunray tracking means, this driving mechanism (50) drives one of them light reflection paraboloid plate (10) rotation according to the control signal of sunray tracking means, and drive other light reflection paraboloid plate (10) by connecting rod (40) and rotate synchronously, make its axial plane parallel with sunray all the time.
7. the solar-energy light collector of following the tracks of sunray as claimed in claim 4, it is characterized in that, a plurality of light reflection paraboloid plates (10) (11) rotation around the shaft respectively along benchmark installed surface (B, C) setting, the center line of this rotating shaft overlaps with described focal axis, rotating shaft (11) is connected on the support (60) at light reflection paraboloid plate (10) two ends rotationally, and a plurality of light reflection paraboloid plates (10) respectively are connected in the rotating shaft (11) by the support bar (12) at two ends.
8. the solar-energy light collector of following the tracks of sunray as claimed in claim 2 is characterized in that, the two ends of little light reflection paraboloid plate (20) are fixed on the support (60).
9. the solar-energy light collector of following the tracks of sunray as claimed in claim 6, it is characterized in that, described driving mechanism (50) comprises worm gear tooth bar (51), worm screw (52), stepper motor (53), wherein, worm gear tooth bar (51) is fixed on the support bar (12), stepper motor (53) is fixed on the support (60), and worm screw (52) is connected on the output shaft of stepper motor (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103016570A CN101533147B (en) | 2009-04-20 | 2009-04-20 | A solar focusing apparatus capable of tracking multi-light reflection paraboloid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103016570A CN101533147B (en) | 2009-04-20 | 2009-04-20 | A solar focusing apparatus capable of tracking multi-light reflection paraboloid |
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| Publication Number | Publication Date |
|---|---|
| CN101533147A CN101533147A (en) | 2009-09-16 |
| CN101533147B true CN101533147B (en) | 2011-04-06 |
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|---|---|---|---|
| CN2009103016570A Expired - Fee Related CN101533147B (en) | 2009-04-20 | 2009-04-20 | A solar focusing apparatus capable of tracking multi-light reflection paraboloid |
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| CN102269481B (en) * | 2011-05-16 | 2013-02-27 | 中国科学院广州能源研究所 | Solar energy collection focusing tracking driving mechanism |
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Granted publication date: 20110406 Termination date: 20130420 |