CN101576320B - Solar power generation universal optical collector - Google Patents
Solar power generation universal optical collector Download PDFInfo
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- CN101576320B CN101576320B CN2009100627017A CN200910062701A CN101576320B CN 101576320 B CN101576320 B CN 101576320B CN 2009100627017 A CN2009100627017 A CN 2009100627017A CN 200910062701 A CN200910062701 A CN 200910062701A CN 101576320 B CN101576320 B CN 101576320B
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- mirror holder
- collecting lens
- mirror
- power generation
- optical collector
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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
- Y02E10/44—Heat exchange systems
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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
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a solar power generation universal optical collector. Two ends of one side of the light facing surface of a mirror holder (1) are vertically fixed with two rotating arms (4) onwhich rotating shafts (5) are fixed; the rotating shafts (5) are correspondingly mounted on a pillar (3); one of the rotating arms (4) is fixed with a big gear wheel (6) by taking the rotating shaft (5) as the axis, and the big gear wheel (6) is meshed with a drive pinion (7) arranged on a rotating device of the mirror holder; illuminators (2) are arranged parallel to the central lines of the rotating shafts (5) and articulated on the mirror holder (1) in rows; the back of each illuminator (2) is provided with a regulating rod (11); and in each row, the regulating rod (11) arranged at the back of each illuminator is connected with a mirror body drive mechanism (8). The optical collector has simple structure, convenient regulation, high accuracy in tracing sunlight, low power consumption, realization of universal light collecting, high comprehensive utilization rate of optical energy, high generated power, high investment return rate and surely considerable application prospect.
Description
Technical field
The present invention relates to a kind of planar solar concentrator, relate in particular to a kind of solar power generation universal optical collector.Belong to the solar facilities technical field.
Background technology
Chinese patent notification number: CN 201191090Y, the day for announcing: on February 4th, 2009, utility model title " adjustable mirror solar energy track heat collector " is mainly by the solar heat pipe assembly, the regulating reflection mirror unit, the cylinder support and the uniaxiality tracking device of regulating reflection mirror unit are installed to be formed, described heat pipe assembly is installed in the top of regulating reflection mirror unit, the heat pipe assembly comprises solar energy heat collection pipe, Heat pipe joint, heat pipe support and adapter bracket are formed, the heat pipe support is fixed on the cylinder support of regulating reflection mirror unit, is fixed with many cover regulating reflection mirror units on the cylinder support.Described single shaft autotracker is made up of deceleration self-locking worm gear worm-drive parts and follow-up control apparatus, the regulating reflection mirror unit is fixed on Jing Tuoshang, the two ends of mirror holder are installed in to be adjusted in the rotating shaft, adjusting rotating shaft matches with axle bed on the cylinder support, can adjust the reflection angle of speculum by clamping screw, and, the sun is followed the tracks of by the rotation of single shaft autotracker drive cylinder support.Improve the reflect focalization efficient of solar energy, reduced the manufacturing cost of equipment.But adopt rectangular speculum in the regulating reflection mirror unit in the technique scheme, making the single shaft autotracker to change the angle of site of the sun follows the tracks of, can't follow the tracks of the azimuthal variation of the sun, be easy to generate the problem of reverberation out-of-bounds, so the efficient of light-use is still waiting to improve.
Summary of the invention
The objective of the invention is can only follow the tracks of the angle of site of the sun at existing planar solar concentrator, be difficult to realize the tracking of solar azimuth, defective that optical energy utilization efficiency is lower and deficiency provide a kind of solar power generation universal optical collector.Its compact conformation, easy to operate, to follow the tracks of accurately, optical energy utilization efficiency is higher.
The objective of the invention is to realize in the following manner: a kind of solar power generation universal optical collector, comprise mirror holder, collecting lens, column and mirror holder whirligig, the two ends vertical fixing of described mirror holder side to light one side has two turning arms, be fixed with rotating shaft on the turning arm, the rotating shaft correspondence is installed on the pillar, be that the axle center is fixed with gear wheel with the rotating shaft on one of them turning arm, gear wheel is meshed with driver pinion on the mirror holder whirligig, the mirror holder whirligig is fixed on the column, described collecting lens is parallel to the center line of rotating shaft and arranges, and in a row be hinged on the mirror holder, the back side of each collecting lens is provided with adjusting lever, and the adjusting lever at each collecting lens back side all is connected with a mirror body driving mechanism among each row.
Two above-described mirror holders become one group side by side, and the turning arm on each mirror holder is installed in respectively on the pillar through rotating shaft, and adjacent two turning arms and two rotating shafts join together respectively.
Described mirror holder is a truss structure, and the side to light of mirror holder is plane or curved surface, and the side to light of described collecting lens is reflective mirror or solar panel.
Described turning arm is the isosceles triangle framework, fixedlys connected with mirror holder in two base angles of isosceles triangle, and a side of close its drift angle is provided with the installation position that focuses on heat pipe, and described rotating shaft is arranged on the axis of symmetry of each turning arm.
The back side of described collecting lens is hinged with a vertical rod through hinge, and the other end of vertical rod is fixed on the mirror holder.
Described mirror body driving mechanism is made up of hydraulic cylinder and stayed pole, hydraulic cylinder is connected with hydraulic oil container through pipeline, hydraulic pump, the cylinder body of hydraulic cylinder is fixed on the mirror holder, push rod and stayed pole on the hydraulic cylinder are hinged, among the same row on each collecting lens the other end of adjusting lever all be hinged on the body of rod of stayed pole.
The electric-controlled switch of described hydraulic pump adopts light-operated trigger in north-south or timing relay.
Press the earth rotation rule, in one daytime by morning line to the dusk line, classify as about 12 hours, the earth rotation half way around, the side to light of mirror holder is pressed the east-west direction placement among the present invention, the plane of mirror holder or the string of a musical instrument of arc and sunshine line be in plumbness all the time, and drive mirror holder by the mirror holder whirligig and rotate from east to west with the sun, consider that different on the spot positions and aspect change, the sunshine-duration may be above 12 hours, promptly surpass 180 °, can change the anglec of rotation of mirror holder into 210 degree by 180 degree.The mirror holder whirligig by the time standard brake, timing relay, variable speed electric motors, particularly and variable speed electric motors, particularly controller form, thereby realize that mirror holder East and West direction corresponding follows the tracks of sun rotation.
Sunshine, line was a horizontal line, and is vertical with earth terminator.Rotating shaft axis when the present invention installs on the turning arm is to overlap with terrestrial meridian, line generation at a sunshine day ditch constantly changes often on the earth, this variation is made up of three aspects, first is the angle variation (diurnal variation) of earth rotation, second is the angle variation (season crackization) of the revolution of the earth, and the 3rd is the angle variation (sun's altitude angle variation) of on the spot position.These three angles change the reverberation that causes collecting lens can reflex to the focusing heat pipe out-of-bounds, and luminous energy focusing rate will descend, and perhaps causes the optical index height on the collecting lens, and solar panel is reduced by luminous intensity and photoelectric transformation efficiency.Thus, can stir, adjust the reflection angle of collecting lens, to solve reverberation light out-of-bounds or to be subjected to the problem of luminous intensity by the correspondence that mirror body driving mechanism is made North and South direction with collecting lens.For the optical collector that is applied to focus on heat pipe, no matter the principle of collecting lens adjustment is the oblique angle size of north-south light, in coming by stirring of collecting lens north-south and the light harvesting angle, make reflected light ray and focus between the heat pipe to be in plumbness all the time, thereby realize the target of light harvesting, reflection and the focusing of sunshine.
Compared with prior art the present invention has following tangible advantage:
1. the present invention can realize universal light harvesting, and light-receiving rate height can reach more than 98%, except that mechanical energy consumption, the photo-thermal conversion ratio improves greatly, can reach more than 75%, the generated energy of direct conversion power generation day of photoelectricity is the 1-1.8 degree, than the high 2-4 of the direct conversion power generation of photoelectricity doubly, and luminous energy comprehensive utilization ratio height, generated output is big, operation costs are low, and the rate of return on investment height can directly be incorporated into the power networks with electrical network, be fit to suitability for industrialized production and commerciality development, application prospect is very considerable.
2. many collecting lens of the present invention set in a row, whenever arrange in a row light microscopic by a mirror body drive mechanism, and are simple in structure, easy to adjust, follow the tracks of the precision height of sunshine, and power consumption is little.
3. mirror holder of the present invention is shelved on the column through turning arm, is suspended structure, because of it utilizes aerial space, can build in the shallow water lake, can breed fish equally in the lake; Can build in beach, desert, ground can be used as the pasture, fully economizes the land resource.Be adapted at zones such as shallow water lake, beach, desert, pasture and go up construction.
4. the present invention can utilize solar thermal energy generating or optical energy power, belongs to the environmental type project that pollution-free, noiselessness, nothing are adopted hot cost, once builds up sustainable use more than 50 years, and the life-span is long, and dependable performance is easy to maintenance.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the left view when mirror holder 1 curved surface makes progress among Fig. 1;
Fig. 4 is the mounting structure schematic diagram of the collecting lens 2 among Fig. 3;
Fig. 5 is the I partial enlarged drawing during 2 one kinds of duties of collecting lens among Fig. 4;
Fig. 6 is the schematic diagram of collecting lens 2 another kind of duties among Fig. 5.
Among the figure, mirror holder 1, collecting lens 2, column 3, turning arm 4, rotating shaft 5, gear wheel 6, driver pinion 7, mirror body driving mechanism 8, hydraulic cylinder 81, stayed pole 82, hydraulic pump 83, hydraulic oil container 84, the light-operated trigger 85 in north-south, vertical rod 9 focuses on heat pipe 10, adjusting lever 11.
The specific embodiment
The present invention is described in further detail below in conjunction with description of drawings and the specific embodiment:
Referring to Fig. 1-Fig. 6, a kind of solar power generation universal optical collector of the present invention, comprise mirror holder 1, collecting lens 2, column 3 and mirror holder whirligig, the two ends vertical fixing of described mirror holder 1 side to light one side has two turning arms 4, be fixed with rotating shaft 5 on the turning arm 4, rotating shaft 5 correspondences are installed on the pillar 3, be that the axle center is fixed with gear wheel 6 with rotating shaft 5 on one of them turning arm 4, gear wheel 6 is meshed with driver pinion 7 on the mirror holder whirligig, the mirror holder whirligig is fixed on the column 3, and described collecting lens 2 is parallel to the center line of rotating shaft 5 to be arranged, and in a row is hinged on the mirror holder 1, the back side of each collecting lens 2 is provided with adjusting lever 11, and the adjusting lever 11 at each collecting lens back side all is connected with a mirror body driving mechanism 8 among each row.Generally, the side to light of mirror holder 1 is pressed east-west direction and is arranged, and by 6 rotations of the 7 drive gear wheels of the driver pinion on the mirror holder whirligig, turning arm 4 and mirror holder 1 are rotated from east to west, to adapt to the variation of the sun angle of site, be arranged in order owing to each collecting lens 2 is parallel to rotating shaft 5, and can adjust the angle of collecting lens 8 by mirror body driving mechanism 8 to North and South direction deflection, to adapt to the variation of solar azimuth, so can satisfy the requirement of universal optical collector.Wherein, described mirror holder whirligig is made up of motor, reductor, drives gear wheel 6 by the driver pinion on the braking maneuver power output shaft 7 and rotates.
Referring to Fig. 1, described turning arm 4 is the isosceles triangle framework, fixedlys connected with mirror holder 1 in two base angles of isosceles triangle, is provided with the installation position of focusing heat pipe 10 near a side of its drift angle, and the isosceles limit is provided with support, is that solid cable wire is to connect the side of mirror holder 1 curved surface on support.Described rotating shaft 5 is arranged on the axis of symmetry of turning arm 4.Preferably be arranged on the total centre of gravity positions of tumbler on turning arm 4 axis of symmetry such as mirror holder 1, collecting lens 2, turning arm 4 and focusing heat pipe 10, can reduce the driving force of mirror holder whirligig like this.
Referring to Fig. 2, described plural mirror holder 1 becomes one group side by side, turning arm 4 on each mirror holder 1 is installed in respectively on the pillar 3 through rotating shaft 5, adjacent two turning arms 4 and two rotating shafts 5 join together respectively, be that the axle center is fixed with gear wheel 6 with rotating shaft 5 on the turning arm 4 on each mirror holder 1, gear wheel 6 is meshed with driver pinion 7 on the mirror holder whirligig, and the mirror holder whirligig is fixed on the column 3.Driven by driver pinion 7 and mirror holder whirligig respectively after a plurality of mirror holders 1 are integral side by side, light-receiving area is big, and good integrity is saved power, and the operational efficiency of mirror holder whirligig improves.
Referring to Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 6, described mirror holder 1 is a truss structure, and the side to light of mirror holder 1 is plane or curved surface, and the side to light of described collecting lens 2 is reflective mirror or solar panel.
Fig. 1, shown in Fig. 2 be at sunshine in the morning the time turning arm 4 horizontal position, shown in Fig. 3 be sunshine at high noon the time turning arm position of placing downwards, on turning arm 4, be equipped with and focus on heat pipe 10, the side to light of mirror holder 1 is a curved surface, and collecting lens 2 is installed on the curved surface, and the side to light of collecting lens 2 is a reflective mirror, mirror holder 1 and collecting lens 2 can be concentrated sunshine to reflex to focus on the heat pipe 10 all towards the sun.Described focusing heat pipe 10 can be a solar heat pipe assembly of the prior art, or adopts the steam formula to focus on pipe unit, as adopting by the applicant in the composite working tube of applying for patent of invention on the same day to State Intellectual Property Office.At Fig. 1, Fig. 2 among Fig. 3, also can cancel focusing on heat pipe 10, and at this moment, the side to light of described collecting lens 2 can be a solar panel, directly solar energy is converted to electric energy.
Referring to Fig. 3, Fig. 4, Fig. 5, Fig. 6, the back side of described collecting lens 2 is hinged with a vertical rod 9 through hinge, and the other end of vertical rod 9 is fixed on the mirror holder 1.Described mirror body driving mechanism 8 is made up of hydraulic cylinder 81 and stayed pole 82, hydraulic cylinder 81 is connected with hydraulic oil container 84 through pipeline, hydraulic pump 83, the cylinder body of hydraulic cylinder 81 is fixed on the mirror holder 1, push rod on the hydraulic cylinder 81 and stayed pole 82 are hinged, among the same row on each collecting lens 1 other end of adjusting lever 11 all be hinged on the body of rod of stayed pole 82.Fig. 4, the pusher retracted of hydraulic cylinder 81 among Fig. 5, stayed pole 82 turns over collecting lens 2 to the left side.Among Fig. 6, the push rod of hydraulic cylinder 81 stretches out, and stayed pole 82 turns over collecting lens 2 to the right thereupon.
When the side to light of collecting lens 2 was reflective mirror, the electric-controlled switch of described hydraulic pump 81 was to be installed in to focus on the north-south light-operated trigger 85 of heat pipe 10 near two turning arms, 4 positions.The light-operated trigger 85 in north-south is made up of light sensor and Schmidt trigger, the light-operated trigger 85 in north-south is installed in and focuses on heat pipe 10 and be positioned at the critical place of light out-of-bounds on the mirror holder 1, control hydraulic pump 81 actions by light sensor and Schmidt trigger, thus the target of the variation of adaptation solar azimuth, realization light harvesting, reflection, focusing.When the side to light of collecting lens 2 was solar panel, the electric-controlled switch of described hydraulic pump 81 was the timing relay.Can control hydraulic pump 81 actions according to the solar azimuth transformation period of setting.
Referring to Fig. 1, Fig. 2, Fig. 3, if be equipped with separate unit 100MW generating set or two 50MW generating sets, and employing focuses on heat pipe 10 heat supply water or steam-electric powers, 27.648 ten thousand square metres of total light-receiving areas that need collecting lens 2 can design and determine that collecting lens 2 and distance between the focusing heat pipe 10 are 30m, and promptly the radius of arc mirror holder 1 is 60m, radian 45 degree, arc length is 47.1m, and collecting lens 2 is set is 16 to each vertical setting of types on the short transverse of mirror holder 1, every height 3m, be 48m, add the light-blocking region 1.2m that focuses on heat pipe 10, focus on the about 2m of external diameter of heat pipe 10, length 60m.4 meters of fire prevention groove (cleaning aisle) 1.2m, 5 meters in gap 0.20m between mirror and the mirror, the arc length overall 50.60m of mirror holder 1; Each horizontally-arranged is provided with totally 48 of collecting lens 2 on the length direction of mirror holder 1, every width 1.2m, and gap 0.03m * 47 between the two sides collecting lens 2, meter 1.41m, 0.05m is respectively stayed in two ends, meter 0.1m, total length is 59.11m.Be a unit between two columns 3, mirror holder 1 is of a size of 59.11 * 50.60m in the unit.In each unit, gap 0.2M between column 3 and the turning arm 4, column 3 is two with the gap of turning arm 4, length is 0.4m, the width 4M of column 3, promptly the length of a unit is 1.6+0.4+4+59.11=65.11m, a component has 10 unit, and each component length is 59.11 * 10+11 * 6=657.1m, 10 of total components, 2 components are a row totally 5 rows, every row's length 657.1 * 2+86m (three in road)=1400m, other adds complex zone, generating district, pool, storehouse 100m, north-south length 1500m, East and West direction spacing 200m, total length 1000m.Comprehensive floor space be East and West direction apart from 1000m, the north-south is 1.5 square kilometres apart from 1500m.
The height of column 3: the arc length 50.6m of mirror holder 1, chord length 49.15m, the height of column 3 are that 1/2 of chord length adds outage apart from 5m, i.e. 29.5m, and rotating shaft 5 is installed in the top of column 3.At the top of column 3 with cable wire to the down either side tractive and be fixed on the ground.
The height of turning arm 4: the minute surface of collecting lens 2 and the distance that focuses between the heat pipe 10 are 30m, the length on turning arm 4 tops is for focusing on 1/4 of heat pipe 10 length, be 15m, forming the angle that focuses on heat pipe 10 and drawing rope 13 is 30 degree, and the height overall of turning arm 4 is 30m+15m=45m.The diameter 6m of gear wheel 6, driver pinion 7 diameter 250mm, rotating speed 2 commentaries on classics/hour, motor speed 10.8 ten thousand commentaries on classics/hour, reductor multiplying power 54000: 1.
The height overall of column 3+ turning arm 4: rotating shaft 5 is installed in the 11m place that makes progress, turning arm 4 bottoms, and the total height of column 3+ turning arm 4 is 29.5+45-11=63.50m.
If this planar solar concentrator is arranged on China middle part, then should select installation, the place to use of shallow water lake as optical collector, build after can getting rid of lake water, build up reserve-water-raise-fish afterwards, do not account for the arable land, make the water intaking of can meeting an urgent need on the spot when in short supply of vapour water.
Claims (7)
1. solar power generation universal optical collector, comprise mirror holder (1), collecting lens (2), column (3) and mirror holder whirligig, it is characterized in that: the two ends vertical fixing of described mirror holder (1) side to light one side has two turning arms (4), be fixed with rotating shaft (5) on the turning arm (4), rotating shaft (5) correspondence is installed on the column (3), it is that the axle center is fixed with gear wheel (6) that one of them turning arm (4) is gone up with rotating shaft (5), gear wheel (6) is meshed with driver pinion (7) on the mirror holder whirligig, the mirror holder whirligig is fixed on the column (3), described collecting lens (2) is parallel to the center line of rotating shaft (5) and arranges, and in a row be hinged on the mirror holder (1), the back side of each collecting lens (2) is provided with adjusting lever (11), and the adjusting lever (11) at each collecting lens back side all is connected with a mirror body driving mechanism (8) among each row.
2. a kind of solar power generation universal optical collector according to claim 1, it is characterized in that: two above-described mirror holders (1) become one group side by side, turning arm (4) on each mirror holder (1) is installed in respectively on the column (3) through rotating shaft (5), and adjacent two turning arms (4) and two rotating shafts (5) join together respectively.
3. a kind of solar power generation universal optical collector according to claim 1 and 2, it is characterized in that: described mirror holder (1) is a truss structure, the side to light of mirror holder (1) is plane or curved surface, and the side to light of described collecting lens (2) is reflective mirror or solar panel.
4. a kind of solar power generation universal optical collector according to claim 1, it is characterized in that: described turning arm (4) is the isosceles triangle framework, fixedly connected with mirror holder (1) in two base angles of isosceles triangle, side near its drift angle is provided with the installation position that focuses on heat pipe (10), and described rotating shaft (5) is arranged on the axis of symmetry of each turning arm (4).
5. a kind of solar power generation universal optical collector according to claim 1 is characterized in that: the back side of described collecting lens (2) is hinged with a vertical rod (9) through hinge, and the other end of vertical rod (9) is fixed on the mirror holder (1).
6. a kind of solar power generation universal optical collector according to claim 1, it is characterized in that: described mirror body driving mechanism (8) is made up of hydraulic cylinder (81) and stayed pole (82), hydraulic cylinder (81) is connected with hydraulic oil container (84) through pipeline, hydraulic pump (83), the cylinder body of hydraulic cylinder (81) is fixed on the mirror holder (1), push rod on the hydraulic cylinder (81) and stayed pole (10) are hinged, and the other end of the last adjusting lever (11) of each collecting lens (1) all is hinged on the body of rod of stayed pole (82) among the same row.
7. a kind of solar power generation universal optical collector according to claim 6 is characterized in that: the electric-controlled switch of described hydraulic pump (81) adopts light-operated trigger in north-south (85) or timing relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100627017A CN101576320B (en) | 2009-06-12 | 2009-06-12 | Solar power generation universal optical collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100627017A CN101576320B (en) | 2009-06-12 | 2009-06-12 | Solar power generation universal optical collector |
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| Publication Number | Publication Date |
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| CN101576320A CN101576320A (en) | 2009-11-11 |
| CN101576320B true CN101576320B (en) | 2010-12-29 |
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| CN2009100627017A Expired - Fee Related CN101576320B (en) | 2009-06-12 | 2009-06-12 | Solar power generation universal optical collector |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202166896U (en) * | 2009-11-24 | 2012-03-14 | 张玉良 | Line drive type linkage light ray tracing method and reflective concentration system thereof |
| CN101813038B (en) * | 2010-04-13 | 2011-12-14 | 上海兆阳新能源科技有限公司 | Mirror focusing automatic co-rotational type solar thermal machine power generating system |
| CN102023646B (en) * | 2010-12-15 | 2012-05-09 | 华中科技大学 | Three-rod solar tracker |
| CN106931667B (en) * | 2017-03-20 | 2018-10-19 | 温州立意机电科技有限公司 | Polar region solar energy receives copper alloy rack |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201467017U (en) * | 2009-06-12 | 2010-05-12 | 王华锵 | Solar power generation universal optical collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201467017U (en) * | 2009-06-12 | 2010-05-12 | 王华锵 | Solar power generation universal optical collector |
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Granted publication date: 20101229 Termination date: 20130612 |