CN204593900U - The Fresnel solar reflection unit that focal length is variable, orientation is adjustable - Google Patents
The Fresnel solar reflection unit that focal length is variable, orientation is adjustable Download PDFInfo
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- CN204593900U CN204593900U CN201420761987.4U CN201420761987U CN204593900U CN 204593900 U CN204593900 U CN 204593900U CN 201420761987 U CN201420761987 U CN 201420761987U CN 204593900 U CN204593900 U CN 204593900U
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- fresnel
- focal length
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- variable
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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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- Optical Elements Other Than Lenses (AREA)
Abstract
Solar energy is inexhaustible clean energy resource, but its energy density is low, and solar energy development utilizes and just must have a huge solar energy field and remove gathering solar energy.The utility model provides a kind of sun reflection unit---Fresnel solar reflection unit that focal length is variable, orientation is adjustable of brand-new, efficient, economy, high concentration ratio, it is a huge paraboloid of revolution upright projection in the horizontal plane parallel with the earth's axis, the metallic reflection eyeglass of the fresnel reflecting mirror that focal length is variable, orientation is adjustable is fixed press strip by reflecting optics and is fixed on reflecting optics fixed support by eyeglass curvature adjusting screw(rod), can be regulated by eyeglass curvature adjusting screw(rod), change the focal length of metallic reflection eyeglass.Its focal length is variable, orientation is adjustable, the utilization that the sun reflects sheet material is made to move towards point-like focusing from slot type line focus, large-scale industrial production manufacture economy, solar energy field that is efficient, high concentration ratio become possibility, at whole solar heat electrical domain, once new revolution certainly will occur.
Description
Technical field
The utility model relate to a kind of economy, efficient, high concentration ratio solar-energy collector---[the Fresnel solar reflection unit that focal length is variable, orientation is adjustable].
Background technology
Solar energy is inexhaustible clean energy resource, but its energy density is low, only has 1000 watts/square metre, carry out solar energy development and utilize and just must have a huge solar energy field and remove gathering solar energy.Rotational paraboloid mirror is the most effective device of converge sunlight always, and the focusing ratio scope of the paraboloid of revolution is very high, about 1000 to 3000, and the highest heat build-up temperature can up to more than 3000 degree.But how obtaining a solar energy field that is huge, high concentration ratio is the target that people make great efforts always.
[the Fresnel solar reflection unit that focal length is variable, orientation is adjustable], it is the upright projection of a huge paraboloid of revolution parallel with the earth's axis at horizontal plane.The radiant light of the sun moves from east to west evenly with the angular speed of 15 °/hour, produces thus day and night to upgrade.If require that the heat collector that the reflection ray of the sun is focused at solar energy maintains static, this remains constant with regard to requiring to impinge upon the reflection ray of the sun on concave mirror, only in this way guarantee convergence of rays to connecing on heat collector.According to geometric optics ABC, reflection ray direction be made to remain unchanged, when incident ray deflection β angle, speculum needs to deflect β/2.Namely the incident light of the sun is at the uniform velocity rotating from east to west with the angular speed of 15 °/hour, and minute surface just at the uniform velocity must rotate with the angular speed of 7.5 °/hour from east to west, so just can guarantee that its reflection ray direction remains unchanged.
On same warp, the angle change of following the trail of the sun is the same, each file [the Fresnel solar speculum that focal length is variable, orientation is adjustable] can regard a wire curved mirror as, control to allow it follow the trail of the sun with the angular speed of 7.5 °/hour with the photoelectricity timer following the trail of the sun, just can guarantee that the focal position of this wire curved mirror is constant; The azimuthal variation of fresnel reflecting mirror can be controlled, to adapt to change throughout the year with fresnel reflecting mirror azimuth servomotor.
[fresnel reflecting mirror that focal length is variable, orientation is adjustable] can allow the eyeglass focal length of speculum and azimuth arbitrarily adjustable, this will make metal sun reflective sheet heavy industrialization utilize to move towards point-like from slot type line focus to focus on and become inevitable;
Compared with trough type solar power generation, [the Fresnel solar reflection unit that focal length is variable, orientation is adjustable] has completely abolished thermal-arrest tubing, greatly reduce thermal loss, and the focusing of point focusing to compare line focus much higher, substantially increase the heat accumulation temperature of energy storage working medium, economic benefit is incomparable;
Compared with generating electricity with solar energy point focusing heat, because heliostat is not identical at the focal length of each point with azimuth, therefore any sun reflection sheet material is all difficult to make the specular heliostat of curved surface and carry out industrialization large-scale production, therefore for [fresnel reflecting mirror that focal length is variable, orientation is adjustable], there is the focusing ratio higher than planar heliostats, the higher thermal efficiency can be obtained;
With regard to wind resistance, groove type solar line focusing system is the several rows of high-wall kept out the wind inherently, in wind resistance, need great amount of investment; In current solar energy point focusing heat generating system, planar heliostats that is tall and big, heavy, that catch the wind occupies more than 51% of system gross investment, its basic reason be exactly in order to heliostat will be done large as much as possible and be increased in the investment of fastness aspect.Comparatively speaking, [the Fresnel solar reflection unit that focal length is variable, orientation is adjustable], because the design concept of Fresnel, its speculum is flat; The azimuth of different eyeglass is different, has been doomed that it is waning structure and ventilative, therefore it seem merrily and lightheartedly, dexterity and economic, there is superpower wind resistance.
Every day, solar incident angle at the uniform velocity changed with 15 °/hour, and within 1 year, the earth revolves around the sun one week, and the change of solar incident angle degree is also one-dimensional linear, and its control method is simpler than Two dimensional control many.
Collapsibility relative to [the Fresnel solar reflection unit that focal length is variable, orientation is adjustable], the height connecting the thermal-arrest tower of solar energy can greatly reduce and reduce construction costs.
In sum, large-scale industrial production manufacture economy, solar energy field that is efficient, high concentration ratio become inevitable, at whole solar heat electrical domain, once new revolution certainly will occur.
Summary of the invention
The purpose of this utility model is to provide a kind of sun mirror field---[the Fresnel solar reflection unit that focal length is variable, orientation is adjustable] of brand-new, efficient, economy, high concentration ratio, and the utility model can be achieved through the following technical solutions:
1, a kind of focal length is variable, the Fresnel solar reflection unit that orientation is adjustable, it is a huge curved mirror upright projection in the horizontal plane parallel with the earth's axis, focal length is variable, the fresnel reflecting mirror that orientation is adjustable is that formation focal length is variable, the main body of the Fresnel solar reflection unit that orientation is adjustable, it is characterized in that: focal length is variable, the metallic reflection eyeglass (1-1) of the fresnel reflecting mirror that orientation is adjustable is fixed press strip (1-2) by reflecting optics and is fixed on reflecting optics fixed support (1-3) by eyeglass curvature adjusting screw(rod) (1-4), can be regulated by eyeglass curvature adjusting screw(rod) (1-4), change the focal length of metallic reflection eyeglass (1-1).
2, be further characterized in that: the reflecting optics fixed support (1-3) of the fresnel reflecting mirror that focal length is variable, orientation is adjustable is fixed on Fresnel reflection mirror support (2-1), can be regulated by reflecting optics azimuth adjustment screw rod (1-5), change the azimuth of metallic reflection eyeglass (1-1).
3, be further characterized in that: the direction that fresnel reflecting mirror follows the tracks of sun rotating shaft (2-2) is consistent with the warp direction of this position, fresnel reflecting mirror is followed the tracks of sun rotating shaft (2-2) and is driven Fresnel reflection mirror support (2-1) to follow the tracks of sun rotation, it rotates and is controlled by fresnel reflecting mirror tracking sun servomotor (2-3), fresnel reflecting mirror is followed the tracks of sun servomotor (2-3) and is controlled by photoelectricity timer, guarantee that Fresnel reflection mirror support (2-1) can follow the tracks of the sun with 15/2 degree per hour around axis uniform rotation, sunshine reflection is maintained static and focuses on solar energy heating tower.
4, be further characterized in that: the fresnel reflecting mirror be positioned on warp direction follows the tracks of sun rotating shaft (2-2) can extend the fresnel reflecting mirror that the multiple focal length of series connection is variable, orientation is adjustable to two ends, become the fresnel reflecting mirror row that row focal length is variable, orientation is adjustable, 1 fresnel reflecting mirror is followed the tracks of sun servomotor (2-3) and can be served the fresnel reflecting mirror that multiple stage focal length is variable, orientation is adjustable, allows them all follow the tracks of the sun with 15/2 degree per hour around axis uniform rotation.
5, be further characterized in that: Fresnel solar speculum azimuth servomotor (2-5) controls Fresnel solar speculum azimuth rotating shaft (2-4) and rotates, to adapt to change throughout the year, Fresnel solar speculum azimuth servomotor (2-5) is controlled by photoelectricity timer.
6, be further characterized in that: Fresnel solar speculum Fresnel solar speculum azimuth rotating shaft (2-4) can be laterally extending to two ends, be connected in parallel the fresnel reflecting mirror row that multiple row focal length is variable, orientation is adjustable, form the Fresnel reflection lens array that focal length is variable, orientation is adjustable, can two, multiple stage Fresnel solar speculum azimuth servomotor (2-5) post, a long coke discharging can be driven apart from variable, that orientation is adjustable Fresnel reflection lens array.
7, be further characterized in that: the Fresnel reflection lens array that focal length is variable, orientation is adjustable is vertical can be in column, and horizontal stroke can be in a row, and array is distributed in four quadrants of solar energy heating tower, forms the Fresnel solar reflection unit that focal length is variable, orientation is adjustable.
Accompanying drawing explanation
Fig. 1 is the fresnel reflecting mirror structure chart that focal length is variable, orientation is adjustable
Fig. 2 is the fresnel reflecting mirror array structure figure that focal length is variable, orientation is adjustable
Fig. 3 is the fresnel reflecting mirror array junctions composition that focal length is variable, orientation is adjustable
Detailed description of the invention
Shown in Fig. 1-Fig. 3 is the Fresnel solar reflection unit that a kind of focal length is variable, orientation is adjustable that the utility model provides, and is described in detail to content of the present utility model below in conjunction with Figure of description:
1, a kind of focal length is variable, the Fresnel solar reflection unit that orientation is adjustable, it is a huge curved mirror upright projection in the horizontal plane parallel with the earth's axis, focal length is variable, the fresnel reflecting mirror that orientation is adjustable is that formation focal length is variable, the main body of the Fresnel solar reflection unit that orientation is adjustable, it is characterized in that: focal length is variable, the metallic reflection eyeglass (1-1) of the fresnel reflecting mirror that orientation is adjustable is fixed press strip (1-2) by reflecting optics and is fixed on reflecting optics fixed support (1-3) by eyeglass curvature adjusting screw(rod) (1-4), can be regulated by eyeglass curvature adjusting screw(rod) (1-4), change the focal length of metallic reflection eyeglass (1-1).
2, be further characterized in that: the reflecting optics fixed support (1-3) of the fresnel reflecting mirror that focal length is variable, orientation is adjustable is fixed on Fresnel reflection mirror support (2-1), can be regulated by reflecting optics azimuth adjustment screw rod (1-5), change the azimuth of metallic reflection eyeglass (1-1).
3, be further characterized in that: the direction that fresnel reflecting mirror follows the tracks of sun rotating shaft (2-2) is consistent with the warp direction of this position, fresnel reflecting mirror is followed the tracks of sun rotating shaft (2-2) and is driven Fresnel reflection mirror support (2-1) to follow the tracks of sun rotation, it rotates and is controlled by fresnel reflecting mirror tracking sun servomotor (2-3), fresnel reflecting mirror is followed the tracks of sun servomotor (2-3) and is controlled by photoelectricity timer, guarantee that Fresnel reflection mirror support (2-1) can follow the tracks of the sun with 15/2 degree per hour around axis uniform rotation, sunshine reflection is maintained static and focuses on solar energy heating tower.
4, be further characterized in that: the fresnel reflecting mirror be positioned on warp direction follows the tracks of sun rotating shaft (2-2) can extend the fresnel reflecting mirror that the multiple focal length of series connection is variable, orientation is adjustable to two ends, become the fresnel reflecting mirror row that row focal length is variable, orientation is adjustable, 1 fresnel reflecting mirror is followed the tracks of sun servomotor (2-3) and can be served the fresnel reflecting mirror that multiple stage focal length is variable, orientation is adjustable, allows them all follow the tracks of the sun with 15/2 degree per hour around axis uniform rotation.
5, be further characterized in that: Fresnel solar speculum azimuth servomotor (2-5) controls Fresnel solar speculum azimuth rotating shaft (2-4) and rotates, to adapt to change throughout the year, Fresnel solar speculum azimuth servomotor (2-5) is controlled by photoelectricity timer.
6, be further characterized in that: Fresnel solar speculum Fresnel solar speculum azimuth rotating shaft (2-4) can be laterally extending to two ends, be connected in parallel the fresnel reflecting mirror row that multiple row focal length is variable, orientation is adjustable, form the Fresnel reflection lens array that focal length is variable, orientation is adjustable, can two, multiple stage Fresnel solar speculum azimuth servomotor (2-5) post, a long coke discharging can be driven apart from variable, that orientation is adjustable Fresnel reflection lens array.
7, be further characterized in that: the Fresnel reflection lens array that focal length is variable, orientation is adjustable is vertical can be in column, and horizontal stroke can be in a row, and array is distributed in four quadrants of solar energy heating tower, forms the Fresnel solar reflection unit that focal length is variable, orientation is adjustable.
Claims (7)
1. a focal length is variable, the Fresnel solar reflection unit that orientation is adjustable, it is a huge curved mirror upright projection in the horizontal plane parallel with the earth's axis, focal length is variable, the fresnel reflecting mirror that orientation is adjustable is that formation focal length is variable, the main body of the Fresnel solar reflection unit that orientation is adjustable, it is characterized in that: focal length is variable, the metallic reflection eyeglass (1-1) of the fresnel reflecting mirror that orientation is adjustable is fixed press strip (1-2) by reflecting optics and is fixed on reflecting optics fixed support (1-3) by eyeglass curvature adjusting screw(rod) (1-4), can be regulated by eyeglass curvature adjusting screw(rod) (1-4), change the focal length of metallic reflection eyeglass (1-1).
2. the Fresnel solar reflection unit that focal length according to claim 1 is variable, orientation is adjustable, be further characterized in that: the reflecting optics fixed support (1-3) of the fresnel reflecting mirror that focal length is variable, orientation is adjustable is fixed on Fresnel reflection mirror support (2-1), can be regulated by reflecting optics azimuth adjustment screw rod (1-5), change the azimuth of metallic reflection eyeglass (1-1).
3. focal length according to claim 1 is variable, the Fresnel solar reflection unit that orientation is adjustable, be further characterized in that: the direction that fresnel reflecting mirror follows the tracks of sun rotating shaft (2-2) is consistent with the warp direction of this position, fresnel reflecting mirror is followed the tracks of sun rotating shaft (2-2) and is driven Fresnel reflection mirror support (2-1) to follow the tracks of sun rotation, it rotates and is controlled by fresnel reflecting mirror tracking sun servomotor (2-3), fresnel reflecting mirror is followed the tracks of sun servomotor (2-3) and is controlled by photoelectricity timer, guarantee that Fresnel reflection mirror support (2-1) can follow the tracks of the sun with 15/2 degree per hour around axis uniform rotation, sunshine reflection is maintained static and focuses on solar energy heating tower.
4. focal length according to claim 1 is variable, the Fresnel solar reflection unit that orientation is adjustable, be further characterized in that: the fresnel reflecting mirror be positioned on warp direction follows the tracks of sun rotating shaft (2-2) can be variable to the two ends multiple focal length of extension series connection, the fresnel reflecting mirror that orientation is adjustable, become a row focal length variable, the fresnel reflecting mirror row that orientation is adjustable, 1 fresnel reflecting mirror follows the tracks of sun servomotor (2-3), and can to serve multiple stage focal length variable, the fresnel reflecting mirror that orientation is adjustable, them are allowed all to follow the tracks of the sun with 15/2 degree per hour around axis uniform rotation.
5. the Fresnel solar reflection unit that focal length according to claim 1 is variable, orientation is adjustable, be further characterized in that: Fresnel solar speculum azimuth servomotor (2-5) controls Fresnel solar speculum azimuth rotating shaft (2-4) and rotates, to adapt to change throughout the year, Fresnel solar speculum azimuth servomotor (2-5) is controlled by photoelectricity timer.
6. the Fresnel solar reflection unit that focal length according to claim 1 is variable, orientation is adjustable, be further characterized in that: Fresnel solar speculum Fresnel solar speculum azimuth rotating shaft (2-4) can be laterally extending to two ends, be connected in parallel the fresnel reflecting mirror row that multiple row focal length is variable, orientation is adjustable, form the Fresnel reflection lens array that focal length is variable, orientation is adjustable, can two, multiple stage Fresnel solar speculum azimuth servomotor (2-5) post, a long coke discharging can be driven apart from variable, that orientation is adjustable Fresnel reflection lens array.
7. the Fresnel solar reflection unit that focal length according to claim 1 is variable, orientation is adjustable, be further characterized in that: the Fresnel reflection lens array that focal length is variable, orientation is adjustable is vertical can be in column, horizontal stroke can be in a row, array is distributed in four quadrants of solar energy heating tower, forms the Fresnel solar reflection unit that focal length is variable, orientation is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761987.4U CN204593900U (en) | 2014-12-06 | 2014-12-06 | The Fresnel solar reflection unit that focal length is variable, orientation is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761987.4U CN204593900U (en) | 2014-12-06 | 2014-12-06 | The Fresnel solar reflection unit that focal length is variable, orientation is adjustable |
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| Publication Number | Publication Date |
|---|---|
| CN204593900U true CN204593900U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420761987.4U Expired - Fee Related CN204593900U (en) | 2014-12-06 | 2014-12-06 | The Fresnel solar reflection unit that focal length is variable, orientation is adjustable |
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| CN (1) | CN204593900U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737401A (en) * | 2014-12-06 | 2016-07-06 | 胡晓颖 | Variable focal distance and adjustable direction Fresnel solar energy reflection field |
| CN106091421A (en) * | 2016-08-03 | 2016-11-09 | 杭州真能科技有限公司 | A kind of solar concentrator |
| CN106225260A (en) * | 2016-08-03 | 2016-12-14 | 杭州真能科技有限公司 | A kind of solar energy collecting system and collection method |
| CN106705457A (en) * | 2017-03-09 | 2017-05-24 | 祝长宇 | Fresnel solar concentrating device |
| CN114236743A (en) * | 2021-12-16 | 2022-03-25 | 北京环境特性研究所 | Calibration system and method for plane mirror array |
-
2014
- 2014-12-06 CN CN201420761987.4U patent/CN204593900U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737401A (en) * | 2014-12-06 | 2016-07-06 | 胡晓颖 | Variable focal distance and adjustable direction Fresnel solar energy reflection field |
| CN106091421A (en) * | 2016-08-03 | 2016-11-09 | 杭州真能科技有限公司 | A kind of solar concentrator |
| CN106225260A (en) * | 2016-08-03 | 2016-12-14 | 杭州真能科技有限公司 | A kind of solar energy collecting system and collection method |
| WO2018023836A1 (en) * | 2016-08-03 | 2018-02-08 | 杭州真能科技有限公司 | Solar concentrator |
| CN106705457A (en) * | 2017-03-09 | 2017-05-24 | 祝长宇 | Fresnel solar concentrating device |
| CN114236743A (en) * | 2021-12-16 | 2022-03-25 | 北京环境特性研究所 | Calibration system and method for plane mirror array |
| CN114236743B (en) * | 2021-12-16 | 2023-09-29 | 北京环境特性研究所 | Calibration system and method for plane reflector array |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20191206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |