WO2016082680A1 - Dispositif de concentration de lumière secondaire pour de l'énergie solaire - Google Patents

Dispositif de concentration de lumière secondaire pour de l'énergie solaire Download PDF

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Publication number
WO2016082680A1
WO2016082680A1 PCT/CN2015/094389 CN2015094389W WO2016082680A1 WO 2016082680 A1 WO2016082680 A1 WO 2016082680A1 CN 2015094389 W CN2015094389 W CN 2015094389W WO 2016082680 A1 WO2016082680 A1 WO 2016082680A1
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WIPO (PCT)
Prior art keywords
mirror
sunlight
north
east
south
Prior art date
Application number
PCT/CN2015/094389
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English (en)
Chinese (zh)
Inventor
邱定平
Original Assignee
邱定平
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Publication date
Application filed by 邱定平 filed Critical 邱定平
Publication of WO2016082680A1 publication Critical patent/WO2016082680A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • 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
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
    • G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • 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

Definitions

  • the invention relates to the field of solar energy utilization, and in particular to a solar secondary concentrating device.
  • the existing solar secondary concentrating technology is a concentrating mirror that simultaneously tracks the sun in the east-west direction and the north-south direction, and the secondary condensing mirror is fixed, so that the concentrating mirror tracking drive is very complicated, the cost is high, and the existing secondary point focusing
  • the secondary mirror of the technology is installed on a tall tower, which increases the cost and installation difficulty.
  • the object of the present invention is to overcome the above disadvantages of the prior art, to make the solar secondary concentrating device less expensive, and to be easier to install and debug.
  • a plurality of primary mirrors reflect sunlight onto a secondary mirror located above the primary mirror, which in turn reflects or transmits sunlight to the solar receiver.
  • the mirror is fixed to the ground or uniaxially tracks the sun in one direction in the east-west or north-south direction.
  • the corresponding secondary mirror moves in the north-south and east-west directions to track the sunlight reflected from the mirror and rotate the angle to reflect the sunlight.
  • the secondary mirror moves in the north-south and east-west directions to track the sunlight reflected by the mirror and rotate or transmit the sunlight to the solar receiver in two directions.
  • the secondary mirror moves in one direction from north to south or east to track the sunlight reflected from the mirror and reflects or transmits the sunlight in one direction to the sunlight.
  • the combination of several sets of the above-described first and second mirrors constitutes a primary mirror and a secondary mirror array, and the solar receiver is located in the array or somewhere on the edge.
  • the secondary mirror may be a mirror or a mirror, such as a Fresnel lens, and the secondary mirror may be a plane mirror, or a curved mirror, such as a parabolic mirror, and a curved mirror, primary and secondary reflections.
  • Mirror should Confocal or confocal lines or nearby.
  • the arrangement of the primary mirror and the second mirror may be such that an adjacent primary mirror within a solid angle relative to a secondary mirror reflects sunlight onto a secondary mirror, or in relation to two or more The adjacent primary mirrors within a respective solid angle of the secondary mirror respectively reflect the sunlight onto two or several secondary mirrors, for example, the adjacent primary mirrors are cross-reflected onto the two secondary mirrors.
  • the single-axis tracking direction of the above-mentioned primary mirror is preferably to track the east-west direction, and a plurality of primary mirrors constitute one row, and several rows of primary mirrors can be driven by one driving mechanism.
  • the secondary mirror array described above can be driven by one or more drive mechanisms to move the position and angle of rotation to track the sunlight reflected by the mirror and to reflect or transmit (refract) the sunlight to the solar receiver.
  • the shape of the primary mirror may be square or elongated, the square size is preferably several centimeters, and the elongated shape is preferably from 0.5 to 1 meter in length and several centimeters in width.
  • the height difference between the first and second mirrors is preferably 5 to 10 meters, and the height of the primary mirror is preferably about 1 meter.
  • the secondary mirrors are arranged on a plane, and the arrangement of the secondary mirrors is preferably staggered by the front and rear secondary mirrors, so that the front secondary mirror does not block the reflected light or the transmitted (refracted) light of the secondary mirrors behind. Make the receiver height as low as possible.
  • the above secondary mirror is preferably a louver-like secondary mirror, that is, each secondary mirror is composed of a plurality of louver-like shapes, which has the advantage that the angle of the secondary mirror is adjusted without deviating too much from the focal line of the primary mirror.
  • the solution of the present invention may also be: a primary mirror reflects the sunlight onto a secondary mirror located above the primary mirror, and the secondary mirror reflects or transmits the sunlight to the solar receiver, and the mirror is fixed to the ground. Or uniaxially track the sun in one direction in the east-west or north-south direction.
  • the corresponding secondary mirror moves in the north-south and east-west directions to track the sunlight reflected from the mirror and rotate the angle to reflect or transmit the sunlight to the sunlight.
  • the solution of the present invention may also be: a primary mirror reflects the sunlight onto a plurality of secondary mirrors located above the primary mirror, and the secondary mirror reflects or transmits the sunlight to the solar receiver, and the primary mirror is fixed at The ground or the uniaxial tracking of the sun in one direction from east to west or north-south direction.
  • the corresponding secondary mirror moves in the north-south and east-west directions to track the sunlight reflected from the mirror and rotate the angle to reflect or transmit the sunlight to the sun.
  • the light receiver moves, or only in one of the north-south or east-west directions, to track the sunlight reflected by the mirror and rotate the angle to reflect or transmit the sunlight to the solar receiver.
  • the solution of the present invention may also be that a plurality of primary mirrors reflect sunlight to a plurality of secondary mirrors located above the primary mirror, and the secondary mirrors reflect or transmit the sunlight to the solar receiver, and the mirror is fixed once.
  • the sun is uniaxially tracked on the ground or in one direction in the east-west or north-south direction.
  • the corresponding secondary mirror moves in the north-south and east-west directions to track the sunlight reflected from the mirror and rotates the angle to reflect or transmit the sunlight.
  • the present invention has the following advantages:
  • the receiver does not need to be installed on a tall tower, which greatly facilitates maintenance and installation;
  • energy storage is more convenient, cheap, can directly use solar light to illuminate energy storage materials, without the need for existing technology such as water, salt, oil and other heat-absorbing heat transfer media, energy storage such as cheap concrete and waste glass ;
  • the temperature difference that can be utilized is greatly improved, which not only saves the quantity of energy storage medium, but also improves the heat quality and improves the power generation efficiency.
  • Figure 1 is a schematic illustration of a set of strip primary mirrors and a strip secondary mirror reflecting sunlight to a solar receiver.
  • Figure 2 is a schematic view similar to Figure 1, except that the orientation of the primary and secondary mirrors relative to the receiver is different.
  • Figure 3 is a schematic illustration of a set of square primary mirrors and a square secondary mirror reflecting sunlight into the receiver.
  • Figure 4 is a schematic view of a strip-shaped primary mirror array.
  • Figure 5 is a schematic illustration of several sets of square primary mirrors and a number of square secondary mirrors that reflect sunlight to the receiver.
  • Figure 6 is a schematic diagram of an array of several square secondary mirrors driven by a single driver.
  • Fig. 7 is a schematic view of a square secondary mirror array and a receiver, and only a part of the secondary mirror is shown.
  • Figure 8 is a schematic illustration of the cross-reflection of adjacent mirrors to different secondary mirrors.
  • Figure 9 is a schematic illustration of a curved primary mirror and a louvered secondary mirror.
  • Figure 10 is a schematic illustration of a primary mirror and a louvered secondary mirror composed of a plurality of strip mirrors.
  • Figure 11 is a schematic illustration of the curved strip mirror of Figure 10.
  • 1 is a strip primary mirror
  • 2 is a strip secondary mirror
  • 3 is a receiver
  • 4 is a square primary mirror
  • 5 is a square secondary mirror
  • 6 is a driver
  • 7 is a primary mirror
  • 8 is a mirror 9 is a transmission/refracting mirror
  • 10 is a focal line of a primary mirror
  • 11 is a louver type secondary mirror
  • 12 is a louver type secondary mirror
  • 13 is a center line of the primary mirror.
  • FIG. 1 A schematic diagram of reflecting a group of strip primary mirrors 1 and a strip-shaped secondary mirror 2 to the solar receiver 3
  • FIG. 2 is a schematic view similar to FIG. 1, except that the first and second mirrors
  • FIG. 3 is a schematic diagram of a set of square primary mirrors 4 and a square secondary mirror 5 for reflecting sunlight onto the receiver 3.
  • FIG. 4 is a strip-shaped primary mirror array.
  • each row consists of a mirror connection of several units, and one or several tracking drive mechanisms can be used to drive the mirror array to track the movement of the sun in the east-west or north-south direction.
  • 5 is a schematic diagram of several sets of square primary mirrors 4 and a plurality of square secondary mirrors 5 for reflecting sunlight to the receiver 3.
  • each secondary mirror corresponds to several adjacent primary mirrors, several blocks Adjacent to the primary reflecting mirror reflection of sunlight onto the same secondary reflecting mirror, a mirror 4 can be fixed to the ground, so that it can be rotated around the axis of the north-south direction, east-west direction to track the sun changes.
  • FIG. 6 is a schematic diagram of an array composed of a plurality of square secondary mirrors driven by a driver 6.
  • the secondary mirror array is located above the primary mirror, and the left and right movements enable the secondary mirror to track the sunlight reflected by the mirror.
  • the figure does not show how the angle of rotation of the secondary mirror is to track the change in the angle of incidence of the sunlight reflected by the mirror, so that the sunlight is reflected by the secondary mirror to the member and the drive mechanism on the receiver, because this is already Any known technique can be used by anyone with a minimum of mechanical structure and automatic control knowledge, and the secondary mirror can be used to track changes in the angle of incidence of sunlight reflected by the mirror once in a similar manner as described above for moving the secondary mirror.
  • the secondary mirror needs to move the position and the rotation angle in the east, west, and north directions to track the change of the incident position and angle of the sunlight reflected by the mirror; if the mirror only surrounds the north-south direction or something The direction of the axis rotates to track the change of the sun in the east-west or north-south direction, then the secondary mirror only needs to move in the north-south direction and rotate the angle or move in the east-west direction and rotate the angle.
  • FIG. 7 is a schematic view of an array of square secondary mirrors 5 and a receiver 3, the receiver 3 is located at the center of the array, and only the left part of the secondary mirror is shown in the figure. As shown in the figure, the arrangement of the secondary mirror is as much as possible.
  • the front secondary mirror is staggered to avoid occlusion of the reflected light from the secondary mirror, so that the height of the receiver 3 is small, otherwise the secondary mirror must have sufficient elevation angle so that the front secondary mirror does not The light reflected by the secondary mirror behind is blocked, so that the height of the receiver 3 is large.
  • Fig. 8 is a schematic diagram showing the cross-reflection of adjacent mirrors 7 to different secondary mirrors.
  • 8 is a mirror
  • 9 is a transmission (refracting mirror)
  • the secondary mirror reflects or refracts sunlight to the receiver on the left side.
  • FIG. 9 is a schematic view of a curved primary mirror and a one-leaf window secondary mirror, wherein 10 is the focal line of the primary mirror, and arrows A and B respectively indicate the reflected direction of the reflected light, which can be adjusted by the louver type II The angle of the secondary mirror 12 is achieved.
  • FIG. 10 is a schematic diagram of a primary mirror and a louvered secondary mirror composed of a plurality of strip mirrors, where 13 is the center line of the primary mirror, and each primary mirror in the figure corresponds to the secondary mirror above it.
  • Figure 11 is a schematic illustration of the curved strip mirror of Figure 10.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

L'invention concerne un dispositif de concentration de lumière secondaire pour de l'énergie solaire, le dispositif réfléchissant la lumière solaire par l'intermédiaire d'un ou de plusieurs réflecteurs primaires (4) vers un ou plusieurs réflecteurs secondaires (5) situés au-dessus des réflecteurs primaires (4); les réflecteurs secondaires (5) réfléchissent la lumière solaire vers un récepteur de lumière solaire (3) ou la transmettent à celui-ci; les réflecteurs primaires (4) sont fixés sur la surface du sol ou suivent le soleil de façon uni-axiale dans une direction est-ouest ou une direction nord-sud; les réflecteurs secondaires correspondants (5) se déplacent dans la direction nord-sud et la direction est-ouest pour suivre la lumière solaire réfléchie par les réflecteurs primaires (4) et tournent d'un angle pour réfléchir la lumière solaire vers le récepteur de lumière solaire (3) ou pour la transmettre à celui-ci; en variante, les réflecteurs secondaires correspondants (5) se déplacent dans la direction nord-sud ou la direction est-ouest pour suivre la lumière solaire réfléchie par les réflecteurs primaires (4) et tournent d'un angle pour réfléchir la lumière solaire vers le récepteur de lumière solaire (3) ou pour la transmettre à celui-ci.
PCT/CN2015/094389 2014-11-25 2015-11-12 Dispositif de concentration de lumière secondaire pour de l'énergie solaire WO2016082680A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410719424.3 2014-11-25
CN201410719424 2014-11-25

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WO2016082680A1 true WO2016082680A1 (fr) 2016-06-02

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN107462983A (zh) * 2016-06-03 2017-12-12 三星电子株式会社 电磁波聚焦装置、光学设备和显微镜

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107525287B (zh) * 2017-05-27 2019-12-10 曾令伦 一种太阳能聚集装置
CN110057116B (zh) * 2019-04-04 2021-02-09 浙江中控太阳能技术有限公司 一种基于二次反射的塔式太阳能光热镜场及其排布方法
CN110244440A (zh) * 2019-05-10 2019-09-17 哈尔滨工业大学 一种集光器的侧向集光系统

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CN101988982A (zh) * 2009-08-06 2011-03-23 曹宏海 定日镜及定向反光设备和阳光跟踪与聚光方法
CN102013843A (zh) * 2010-10-09 2011-04-13 张国柱 一种可控双状态反光聚光太阳能集热发电装置
CN201945061U (zh) * 2011-03-24 2011-08-24 成都安锐达科技有限责任公司 菲涅尔中高温太阳能集热装置
CN102612627A (zh) * 2009-09-23 2012-07-25 鹰眼研究股份有限公司 带有固定的一次反射器和铰接的二次镜的太阳能集中器系统

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CN102183837B (zh) * 2011-04-21 2013-05-08 上海晶电新能源有限公司 二次聚光装置、系统及具有该系统的太阳能热发电系统
JP2014052171A (ja) * 2012-08-09 2014-03-20 Ricoh Co Ltd 集光装置、太陽熱発電装置及び太陽光発電装置
CN203894465U (zh) * 2013-12-28 2014-10-22 邱定平 一种二次聚光装置及降低二次聚光镜安装高度的装置

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101988982A (zh) * 2009-08-06 2011-03-23 曹宏海 定日镜及定向反光设备和阳光跟踪与聚光方法
CN102612627A (zh) * 2009-09-23 2012-07-25 鹰眼研究股份有限公司 带有固定的一次反射器和铰接的二次镜的太阳能集中器系统
CN102013843A (zh) * 2010-10-09 2011-04-13 张国柱 一种可控双状态反光聚光太阳能集热发电装置
CN201945061U (zh) * 2011-03-24 2011-08-24 成都安锐达科技有限责任公司 菲涅尔中高温太阳能集热装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107462983A (zh) * 2016-06-03 2017-12-12 三星电子株式会社 电磁波聚焦装置、光学设备和显微镜

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