CN102466329A - Solar energy collection device - Google Patents

Solar energy collection device Download PDF

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Publication number
CN102466329A
CN102466329A CN2010105353514A CN201010535351A CN102466329A CN 102466329 A CN102466329 A CN 102466329A CN 2010105353514 A CN2010105353514 A CN 2010105353514A CN 201010535351 A CN201010535351 A CN 201010535351A CN 102466329 A CN102466329 A CN 102466329A
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CN
China
Prior art keywords
speculum
mirror
receiver
tracking
solar collecting
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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.)
Pending
Application number
CN2010105353514A
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Chinese (zh)
Inventor
黄卫东
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黄卫东
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Application filed by 黄卫东 filed Critical 黄卫东
Priority to CN2010105353514A priority Critical patent/CN102466329A/en
Publication of CN102466329A publication Critical patent/CN102466329A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/47Mountings or tracking
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The invention discloses a solar energy collection device, which comprises a luminous energy receiver, a bracket, a group of carriers and a group of reflecting mirrors, wherein the bracket is provided with the group of carriers which can rotate around a horizontal shaft; each carrier is provided with one subgroup of reflecting mirrors arranged in sequence; the bracket can rotate around a shaft vertical to a horizontal plane; the luminous energy receiver is installed on the shaft vertical to the horizontal plane; and each reflecting mirror reflects incident light onto a luminous energy conversion device. Compared with the prior art, the solar energy collection device has the characteristics that the efficiency is improved, the amount of tracking systems and the amount of driving devices are reduced, and the amount of the tracking systems is lowered by about one order of magnitude so as to lower system complexity. The solar energy collection device has the advantages of reasonable structure design and low cost.

Description

Solar collecting device
Affiliated technical field
Patent of the present invention relates to a kind of solar collecting device, and the solar collecting device that especially a kind of tracking mode is improved belongs to technical field of solar utilization technique.
Background technology
Along with the minimizing gradually of fossil resource, people greatly develop regenerative resource.Solar energy is inexhaustible regenerative resource.Because solar energy density is low, adopt optically focused can improve solar energy density, thereby improve the solar energy utilization ratio, be one of main method of solar energy utilization.Photospot solar utilizes system at present, mainly comprises the some condenser system of a plurality of speculums tracking sunshines, like tower-type solar thermal power generating system; The reflection paraboloid line-focusing solar of band tracking means utilizes system; The dish-shaped parabolic focused solar energy of band tracking means utilizes system; The refraction focused solar energy of various band tracking means utilizes system.Because single large tracts of land curved surface minute surface manufacture difficulty is big, the cost height is windproof power effect simultaneously, and the tracking means of configuration requires high, and people more pay attention to developing many minute surfaces and disperse to make installation, and reflect focalization is to common luminous energy receiver.
The tower type solar system accepts tower by solar energy and the huge heliostat of quantity is formed, and optically focused is to be hopeful one of technological means that realizes high-power generating, alternative conventional energy resource most than big.
Usually each heliostat need be installed the bi-directional tracking device, follows the tracks of the sun and on azel, changes.Because the linear dimension of the land area that the quantity of heliostat and heliostat occupy square is directly proportional, thereby tracking system quantity is also increased synchronously, make very complicacy of system, this is that tower system is difficult to the one of the main reasons moving towards to use.
Summary of the invention
The objective of the invention is to improve the tracking means of existing multiple reflection mirror focusing system, propose a kind of large-scale multiple reflection mirror focused solar energy gathering-device that can reduce tracking means quantity significantly.
To achieve these goals, technical scheme of the present invention is: a kind of solar collecting device comprises the luminous energy receiver, support; One group of carriage and one group of speculum are installed one group and can the speculum that one son group is arranged in order be installed on each carriage around the carriage of horizontal rotational shaft on support; Support can wind the axle rotation perpendicular to horizontal plane, and the luminous energy receiver is installed on the said axle perpendicular to horizontal plane, and each speculum reflexes to incident light on the luminous energy receiver; Said speculum is the point focusing speculum, can be parabolic mirror, spherical reflector; Ellipsoidal mirror, Fresnel reflecting mirror, or spherical Fresnel reflecting mirror.
In the such scheme; Said luminous energy receiver is made up of photothermal conversion device and secondary reflection mirror; The photo-thermal reforming unit is installed on the secondary reflection mirror foci; Said mirror reflects sunray focuses on the photothermal conversion device through the secondary reflection mirror behind the secondary reflection mirror, and said secondary reflection mirror is point focusing paraboloidal mirror, spherical mirror, ellipsoidal mirror, fresnel reflecting mirror, spherical fresnel reflecting mirror, V-type slot type speculum or composite parabolic speculum.
Between carriage described in the such scheme and the said speculum gear has been installed also, during said horizontal rotational shaft,, mirror reflects light has accurately been incided on luminous energy receiver or the photothermal conversion device through the gear adjustment speculum anglec of rotation.
In the such scheme; Another one second trunnion axis vertical with said trunnion axis also is installed on the said speculum; When said trunnion axis rotates; Rotate through gear driven second trunnion axis, adjustment speculum direction accurately incides on said luminous energy receiver or the photothermal conversion device mirror reflects light.Because the speculum hot spot nearer apart from receiver is less, the speculum that needs installation gear accurate tracking position of sun to change is the speculum far away apart from receiver, and the speculum of actual installation gear only is the minority speculum.
Use non-circular gear accurately reflected sunlight to the luminous energy receiver.
In the such scheme; 3 or 4 or 4 also were installed with last wheel on the said support; Said solar collecting device also comprises surface-based arc or the circuit orbit that one or more are parallel to each other, and the said wheel of on support, installing moves in orbit.
Second kind of solar collecting device scheme; Form by one group of line focus speculum and receiver; Said line focus speculum is arranged in order fixed installation; Make the speculum center on same arc surface, when parallel rays impinged perpendicularly on one of them mirror mirror, it was on the receiver of said arc diameter that all speculums reflex to the said speculum of distance with incident light; Said receiver can change around said center of arc rotation tracking position of sun, and said speculum is cylindrical mirror, line focus parabolic mirror, arc fresnel reflecting mirror or line focus fresnel reflecting mirror.
Above in the said scheme; Said receiver is made up of energy converting apparatus and secondary reflection mirror; The luminous energy reforming unit is installed on the secondary reflection mirror foci, after the light of said mirror reflects reflexes to the secondary reflection mirror, focuses on the energy converting apparatus through the secondary reflection mirror; Said secondary reflection mirror is line focus paraboloidal mirror, line focus cylindrical mirror, line focus fresnel reflecting mirror, arc fresnel reflecting mirror, V-type slot type speculum or composite parabolic speculum.
Above in the said scheme, said second kind of solar collecting device also comprises an orientation tracking means, said second kind of solar collecting device is installed on the orientation tracking means, said energy converting apparatus is photothermal conversion device or photovoltaic cell.
The third solar collecting device; By spherical reflector, the orientation tracking means, altitude of the sun tracking means and receiver are formed; Spherical reflector tilts to be installed on the orientation tracking means; Making section, spherical reflector center and horizontal plane angle is the 10-30 degree, and receiver is installed on the altitude of the sun tracking means, makes receiver accept the light of focusing mirror.The orientation tracking means is followed the tracks of solar azimuth and is changed, and the altitude of the sun tracking means is followed the tracks of altitude of the sun and changed.
The 4th kind of solar collecting device; By one group of point focusing speculum; A solar azimuth tracking means and a group of receivers are formed, and said one group of point focusing speculum is fixedly mounted on the solar azimuth tracking means, and each point focusing speculum is that rectangular speculum is formed by one group of perspective plane; Said rectangle speculum is arranged in order fixed installation; Make the speculum center on same arc surface, when parallel rays impinged perpendicularly on one of them mirror mirror, it was on the receiver of said arc diameter that all speculums reflex to the said speculum of distance with incident light; Said receiver can change around said center of arc rotation tracking position of sun, and said speculum is spherical reflector, point focusing parabolic mirror, spherical fresnel reflecting mirror or point focusing fresnel reflecting mirror.
Compare with the prior art scheme, the present invention has not only improved efficient, and has reduced tracking system quantity and drive unit quantity, makes tracking system quantity reduce a nearly one magnitude, thereby has reduced system complexity.Patent structure of the present invention is reasonable in design, and is with low cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is the embodiment of the invention 1 a solar energy collecting system vertical view;
Fig. 2 is the embodiment of the invention 1 a solar energy collecting system cross-sectional view;
Fig. 3 is the local cross sectional representation of amplifying in the embodiment of the invention 1 speculum installation site;
Fig. 4 is the embodiment of the invention 1 a luminous energy acceptor device cross-sectional view.
Fig. 5 is the schematic top plan view of the embodiment of the invention 2;
Fig. 6 is the embodiment of the invention 2 side views;
Fig. 7 is the speculum installation side view of the embodiment of the invention 2;
Fig. 8 is the speculum vertical view of the embodiment of the invention 2;
Fig. 9 is that the speculum of the embodiment of the invention 2 is installed vertical view;
Figure 10 is transmission device in the embodiment of the invention 3, track and speculum side view;
Figure 11 is transmission device in the embodiment of the invention 3, track and speculum vertical view;
Figure 12 is the floor map of the embodiment of the invention 4;
Figure 13 is the side view of the embodiment of the invention 4.
Among the figure: 1, reflector group; 2 luminous energy receivers; 3, bar; 4, column; 5, axle; 6, condenser mirror; 7 speculums are installed the place circumference; 10 and 13 is gear; 11 is gear tumbler; 12 is trunnion axis; 14 is support post; 15 screw rods for the band gear; 17 and 20 is turning cylinder; 18 is bracing frame; 19 is speculum; 21 is track; 22 is the luminous energy receiver; 23 is support; 24 is carriage; 31,32,33,34 speculums; 35, insulation material; 36, metal tube; 37, the clear glass cover plate; 41 speculums; 42 outlet pipes; 43 vacuum heat collection pipes; 44 water inlet pipes; 51 spherical reflectors; 52 orientation tracking means; 53 altitude of the sun tracking means; 54 receivers; 55 support bars; 61 point focusing speculums; 62 solar azimuth tracking means; 63 luminous energy receivers; 64 support bars; 65 tracking means.
The specific embodiment
Embodiment 1, and like Fig. 1-3, reflector group of being made up of a plurality of line focus speculums 61 and the luminous energy receiver 2 that is installed on the tracking means are formed a unit, and an element length is 100 meters, and each line focus speculum 6 is that width is 1 meter a parabolic mirror.Line focus speculum 6 fixedly mounts successively, and their minute surface center is on the circumference, and is as shown in Figure 3, is the cross section partial enlarged drawing of installation site; When parallel rays impinged perpendicularly on intermediate mirrors, all mirror reflects parallel rays focused on the receiver, and at this moment receiver is positioned on the circumference, were circle diameter apart from the intermediate mirrors distance; With upper pillar stand 4, form, and is installed in week in the circle center by axle 5 and the bar 3 that can pivot by two or two for tracking means; Luminous energy receiver 2 is installed on the end away from axle 5 of bar 3; Axle 5 is supported by column 4, is radius of a circle from speculum 6 minute surfaces distance, through around axle 5 dwangs 3; The luminous energy receiver is moved, follow the tracks of flare.
Luminous energy receiver 2 is by V-type slot type speculum, and vacuum heat collection pipe 36 is formed, and also can add clear glass cover plate 37, mirror back surface covering insulation material 35.Cross section such as Fig. 8.Solar energy focuses on through speculum 31-34 and shines on the vacuum heat collection pipe 36, is absorbed by the surface selectivity absorber coatings to convert heat energy into, is transmitted on the tube fluid, exports through fluid.The control fluid flow rate can be controlled fluid temperature (F.T.), thereby be used for various objectives.The control temperature is a 170-200 degree Celsius, can be used for driving lithium-bromide absorption-type refrigerating machine.The control temperature is more than the 280-300 degree Celsius, can be used for driving the steam turbine generating.
A kind of in addition cross section of luminous energy receiver scheme such as Fig. 5 comprise speculum 41, vacuum heat collection pipe 43, water inlet pipe 44 and outlet pipe 42.Water flow in the vacuum heat collection pipe 43 from water inlet pipe 44, is flow to after the solar energy heating in the outlet pipe 42 to be discharged in the application system.
Embodiment 2, like Fig. 6-9, and a kind of tower type solar optically focused use device; Comprise photo-thermal reforming unit 22,23, one groups of carriages 24 of support and one group of speculum 19; Support 23 can wind the axle rotation perpendicular to horizontal plane, rotatablely moves around said axle through support 23, follows the tracks of solar azimuth; Photo-thermal reforming unit 22 is installed on the said axle perpendicular to horizontal plane, and one group of trunnion axis 12 is installed on support 23, through carriage 24 speculum 19 that a son group is arranged in order is installed on the every trunnion axis 12.Syndeton such as Fig. 8-9 of carriage 24 and speculum 19 and trunnion axis 12, bracing frame 18 is fixed on the gear 13, and axle 20 is installed on the bracing frame 18, and speculum 19 is fixed on the axle 20, and support column 14 fixed axis 17 are on support 23; Gear tumbler 11 is installed on the trunnion axis 12, through gear tumbler 11, rotates trunnion axis 12 driving shafts 17 and rotates, and through gear 13, drives and is installed in the speculum 19 accurate tracking solar azimuths on the bracing frame 18; Another one gear 10 is installed on the axle 12, is driven screw rod 15 and move, thereby speculum 19 is rotated around axle 20, the accurate tracking altitude of the sun changes.The gear that uses is a non-circular gear, but accurate tracking altitude of the sun and orientation change.
Embodiment 3, like Figure 10-11, and a kind of sphere Photospot solar use device; By spherical reflector 51, orientation tracking means 52, altitude of the sun tracking means 53 is formed with receiver 54; Spherical reflector 51 tilts to be installed on the orientation tracking means 52, and making spherical reflector section, 51 center and horizontal plane angle is 20 degree, and receiver 54 is installed on the altitude of the sun tracking means 53; Be fixed on the orientation tracking means 52 through support bar 55, make receiver 54 accept the light that speculum 51 focuses on.Orientation tracking means 52 is followed the tracks of solar azimuth and is changed, and altitude of the sun tracking means 53 is followed the tracks of altitude of the sun and changed.Use vacuum heat collection pipe to make receiver 54.
Embodiment 4, like Figure 12-13, and a kind of solar collecting device; By one group of point focusing speculum 61, a solar azimuth tracking means 62 and a group of receivers 63 are formed, and said one group of point focusing speculum 61 is fixedly mounted on the solar azimuth tracking means 62; Each point focusing speculum is that rectangular speculum 61 is formed by one group of perspective plane, and said rectangle speculum is arranged in order fixed installation, makes the speculum center on same arc surface; When parallel rays impinges perpendicularly on one of them mirror mirror; It is on the receiver of said arc diameter that all speculums reflex to the said speculum of distance with incident light, and said receiver is installed on the tracking means 65, can change around said center of arc rotation tracking position of sun; Tracking means 65 is fixed on the solar azimuth tracking means 62 through support bar 64; Said speculum is spherical reflector, point focusing parabolic mirror, spherical fresnel reflecting mirror or point focusing fresnel reflecting mirror, and wherein the spherical reflector price is low, is the selection of using always.

Claims (10)

1. a solar collecting device is characterized in that: comprise the luminous energy receiver, support; One group of carriage and one group of speculum are installed one group and can the speculum that one son group is arranged in order be installed on each carriage around the carriage of horizontal rotational shaft on support; Support can wind the axle rotation perpendicular to horizontal plane, and the luminous energy receiver is installed on the said axle perpendicular to horizontal plane, and each speculum reflexes to incident light on the luminous energy receiver; Said speculum is the point focusing speculum, can be parabolic mirror, spherical reflector; Ellipsoidal mirror, Fresnel reflecting mirror, or spherical Fresnel reflecting mirror.
2. according to the said solar collecting device of claim 1; It is characterized in that: said luminous energy receiver is made up of photothermal conversion device and secondary reflection mirror; The photo-thermal reforming unit is installed on the secondary reflection mirror foci; Said mirror reflects sunray is behind the secondary reflection mirror; Focus on the photothermal conversion device through the secondary reflection mirror, said secondary reflection mirror is point focusing paraboloidal mirror, spherical mirror, ellipsoidal mirror, fresnel reflecting mirror, spherical fresnel reflecting mirror, V-type slot type speculum or composite parabolic speculum.
3. according to claim 1 or 2 said solar collecting devices; It is characterized in that: between said carriage and the said speculum gear has been installed also; During said horizontal rotational shaft; Through the gear adjustment speculum anglec of rotation, mirror reflects light is accurately incided on luminous energy receiver or the photothermal conversion device.
4. according to claim 1 or 2 or 3 said solar collecting devices; It is characterized in that: another one second trunnion axis vertical with said trunnion axis also is installed on the said speculum; When said trunnion axis rotates; Rotate through gear driven second trunnion axis, adjustment speculum direction accurately incides on said luminous energy receiver or the photothermal conversion device mirror reflects light.
5. according to claim 3 or 4 said solar collecting devices, it is characterized in that: said gear is a non-circular gear.
6. according to claim 1 or 2 or 3 said solar collecting devices; It is characterized in that: 3 or 4 or 4 also were installed on the said support with last wheel; Said solar collecting device also comprises surface-based arc or the circuit orbit that one or more are parallel to each other, and the said wheel of on support, installing moves in orbit.
7. solar collecting device; It is characterized in that forming by one group of line focus speculum and receiver; Said line focus speculum is arranged in order fixed installation; Make the speculum center on same arc surface, when parallel rays impinged perpendicularly on one of them mirror mirror, it was on the receiver of said arc diameter that all speculums reflex to the said speculum of distance with incident light; Said receiver can change around said center of arc rotation tracking position of sun, and said speculum is cylindrical mirror, line focus parabolic mirror, arc fresnel reflecting mirror or line focus fresnel reflecting mirror.
8. according to the said solar collecting device of claim 7; It is characterized in that: said solar collecting device also comprises an orientation tracking means; Said solar collecting device is installed on the orientation tracking means, and said energy converting apparatus is photothermal conversion device or photovoltaic cell.
9. solar collecting device; It is characterized in that by spherical reflector, the orientation tracking means, altitude of the sun tracking means and receiver are formed; Spherical reflector tilts to be installed on the orientation tracking means; Making section, spherical reflector center and horizontal plane angle is the 10-30 degree, and receiver is installed on the altitude of the sun tracking means, makes receiver accept the light of focusing mirror.
10. solar collecting device; It is characterized in that by one group of point focusing speculum; A solar azimuth tracking means and a group of receivers are formed, and said one group of point focusing speculum is fixedly mounted on the solar azimuth tracking means, and each point focusing speculum is that rectangular speculum is formed by one group of perspective plane; Said rectangle speculum is arranged in order fixed installation; Make the speculum center on same arc surface, when parallel rays impinged perpendicularly on one of them mirror mirror, it was on the receiver of said arc diameter that all speculums reflex to the said speculum of distance with incident light; Said receiver can change around said center of arc rotation tracking position of sun, and said speculum is spherical reflector, point focusing parabolic mirror, spherical fresnel reflecting mirror or point focusing fresnel reflecting mirror.
CN2010105353514A 2010-11-08 2010-11-08 Solar energy collection device Pending CN102466329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105353514A CN102466329A (en) 2010-11-08 2010-11-08 Solar energy collection device

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Application Number Priority Date Filing Date Title
CN2010105353514A CN102466329A (en) 2010-11-08 2010-11-08 Solar energy collection device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102968126A (en) * 2012-12-03 2013-03-13 丁慈鑫 Biaxial sun-chasing tracking mechanism
CN104110898A (en) * 2013-04-19 2014-10-22 中国科学院工程热物理研究所 Variable-irradiation and active-control groove-type solar light condensing and heat collecting device and method
CN105585343A (en) * 2016-02-29 2016-05-18 赵建国 Fertilizer preparation system using solar energy for drying feces
CN104110898B (en) * 2013-04-19 2016-11-30 中国科学院工程热物理研究所 A kind of groove type solar light-condensing and heat-collecting device becoming irradiation active control and method
WO2018098800A1 (en) * 2016-12-02 2018-06-07 博立多媒体控股有限公司 Solar power station

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102968126A (en) * 2012-12-03 2013-03-13 丁慈鑫 Biaxial sun-chasing tracking mechanism
CN104110898A (en) * 2013-04-19 2014-10-22 中国科学院工程热物理研究所 Variable-irradiation and active-control groove-type solar light condensing and heat collecting device and method
CN104110898B (en) * 2013-04-19 2016-11-30 中国科学院工程热物理研究所 A kind of groove type solar light-condensing and heat-collecting device becoming irradiation active control and method
CN105585343A (en) * 2016-02-29 2016-05-18 赵建国 Fertilizer preparation system using solar energy for drying feces
WO2018098800A1 (en) * 2016-12-02 2018-06-07 博立多媒体控股有限公司 Solar power station

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Application publication date: 20120523