CN101943489B - Secondary reflection light-gathering solar water heater lighted by paraboloid closed cavity - Google Patents
Secondary reflection light-gathering solar water heater lighted by paraboloid closed cavity Download PDFInfo
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- CN101943489B CN101943489B CN201010500593XA CN201010500593A CN101943489B CN 101943489 B CN101943489 B CN 101943489B CN 201010500593X A CN201010500593X A CN 201010500593XA CN 201010500593 A CN201010500593 A CN 201010500593A CN 101943489 B CN101943489 B CN 101943489B
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- paraboloid
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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
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Abstract
The invention provides a secondary reflective light-gathering solar water heater by paraboloid closed cavity daylighting, which receives solar energy by reflected light focusing effect of a large-plane reflective mirror and a revolution paraboloid reflective mirror, thus greatly improving solar receiving efficiency and achieving the purpose of acquiring and receiving solar energy under strong light and weak light.
Description
Affiliated technical field:
The present invention relates to a kind of Application of Solar Energy technology; Particularly a kind of parabolic closed housing daylighting secondary reflection concentration solar water heater that utilizes paraboloid of revolution optically focused principle to receive solar energy; This device receives solar energy through the reflective focussing force of the paraboloid of revolution, can significantly improve the receiving efficiency of solar energy.
Background technology:
Solar energy is a kind of clean energy resource, and is inexhaustible, nexhaustible, also can not cause environmental pollution; Nowadays; No matter in coastal cities, still in inland city, solar product gets into people's the visual field just more and more; Solar street light, solar lawn lamp, solar energy garden lamp, solar corridor lamp, bus station's desk lamp, traffic lights or the like, various solar water heaters have also been walked close to huge numbers of families.But these solar product great majority all do not have light-focusing function, cause solar energy utilization ratio low.The light intensity on solar energy receiving element surface doubles; The receiving efficiency of solar energy receiving element will double; The focus of solar energy industry technology competition at present mainly is the battle of solar energy receiving efficiency; It is thus clear that improve receiving efficiency to whole industry significance level, therefore can effectively improve the intensity of illumination of solar energy receiving element, just become the problem of paying close attention to the most when people utilize solar energy.
In recent years, in the photovoltaic matrix of some solar power stations, realized the Salar light-gathering reception abroad, domestic also have similar experimental rig, but these apparatus structures are complicated, bulky, cost is high-leveled and difficult on the solar domestic product, to obtain popularization.
Summary of the invention:
In order to overcome shortcomings such as existing beam condensing unit complicated in mechanical structure, bulky, cost height. the present invention is directed to the deficiency that prior art exists; Prior art is improved, proposed the Salar light-gathering receiving system that a kind of volume is little, simple and reliable for structure, cost is low, the optically focused reception that it can realize solar energy.
The technical solution adopted for the present invention to solve the technical problems is: a plurality of Salar light-gathering receiving mechanisms have been installed in a rectangular box; A water tank has been installed above rectangular box; On rectangular box, be stamped a planar transparent cover plate; The planar transparent cover plate is enclosed in each Salar light-gathering receiving mechanism in the rectangular box; Each Salar light-gathering receiving mechanism proper alignment is in rectangular box; Each Salar light-gathering receiving mechanism all is made up of a paraboloid of revolution reflective mirror and a luminous energy receiver, and the Salar light-gathering receiving mechanism is divided into many groups, and the middle seat that the big plane mirror of the square big plane mirror of a block length, each group all has been installed in the front of each group Salar light-gathering receiving mechanism has a long straight light entrance slit along its long side direction; Each big plane mirror and planar transparent cover plate of organizing the Salar light-gathering receiving mechanism intersects 45
The luminous energy receiver of each Salar light-gathering receiving mechanism is made of a taper seat reflective mirror of the hollow heat conduction cavity of the paraboloid of revolution and a hemisphere face transparent light guide lid; The top of taper seat reflective mirror has a light incident circular hole; The taper seat reflective mirror of each luminous energy receiver covers the paraboloid of revolution opening part at the hollow heat conduction cavity of the paraboloid of revolution of this luminous energy receiver closely; The hemisphere face transparent light guide lid of each luminous energy receiver covers closely on the light incident circular hole of the taper seat reflective mirror of this luminous energy receiver; Hemisphere face transparent light guide lid, the hollow heat conduction cavity of the paraboloid of revolution and the taper seat reflective mirror of each luminous energy receiver constitute a closed cavities
Each luminous energy receiver of organizing the Salar light-gathering receiving mechanism is installed in the back side of reflective surface of the big plane mirror of this group; Each organizes the reflective surface of paraboloid of revolution opening over against the paraboloid of revolution opening of the light entrance slit of the big plane mirror of this group and the hollow heat conduction cavity of each paraboloid of revolution over against this paraboloid of revolution reflective mirror of the hollow heat conduction cavity of each paraboloid of revolution of the luminous energy receiver of Salar light-gathering receiving mechanism; The focus of the center of circle of the centre of sphere of the paraboloid of revolution focus of the hollow heat conduction cavity of the paraboloid of revolution of the luminous energy receiver of each Salar light-gathering receiving mechanism and hemisphere face transparent light guide lid and the light incident circular hole of taper seat reflective mirror and the paraboloid of revolution reflective mirror of this Salar light-gathering receiving mechanism overlaps; Each focus of organizing the paraboloid of revolution reflective mirror of Salar light-gathering receiving mechanism is positioned on the light entrance slit of big plane mirror of this group
When sunshine during perpendicular to the incident of planar transparent cover plate; Can both pass the light entrance slit of big plane mirror behind the reflect focalization of big plane mirror and the paraboloid of revolution reflective mirror of incident ray through each group Salar light-gathering receiving mechanism and the light incident circular hole of taper seat reflective mirror is radiated on the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver; The luminous energy that is radiated on the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver converts heat energy into through the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver; Because of closed cavities of the hollow heat conduction cavity formation of hemisphere face transparent light guide lid, taper seat reflective mirror and the paraboloid of revolution of each luminous energy receiver; And the light incident circular hole of the taper seat reflective mirror of each luminous energy receiver is very little; The light of light incident circular hole that gets into the taper seat reflective mirror of each luminous energy receiver repeatedly is radiated on the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver through the reflection of the taper seat reflective mirror of each luminous energy receiver; The major part of luminous energy changes heat energy in closed cavities, therefore significantly improved the photo-thermal conversion ratio of each luminous energy receiver.
The invention has the beneficial effects as follows: the reflective focussing force through each paraboloid of revolution reflective mirror has significantly improved the sun light intensity that is radiated on each luminous energy receiver; Thereby significantly improved the photo-thermal conversion ratio of each luminous energy receiver, realized that higher photo-thermal conversion ratio is all arranged under the environment of the high light and the low light level.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is overall structure figure of the present invention.
Fig. 2 is the A-A cutaway view of overall structure figure of the present invention.
Fig. 3 is the B-B cutaway view of overall structure figure of the present invention.
Fig. 4 is the enlarged drawing of the Salar light-gathering receiving mechanism cutaway view of the embodiment of the invention.
Fig. 5 is the sketch map of the paraboloid of revolution.
In the paraboloid of revolution pie graph of Fig. 5: paraboloid of revolution S, the directrix plane S1 of the paraboloid of revolution, the summit O of the paraboloid of revolution, the focus f of the paraboloid of revolution, the symmetry axis L of the paraboloid of revolution.
The specific embodiment:
In Fig. 1, Fig. 2 and Fig. 3; 25 Salar light-gathering receiving mechanisms have been installed in a rectangular box 3-1; 25 Salar light-gathering receiving mechanisms are divided into five groups, and a water tank 8-1 has been installed above rectangular box 3-1, on rectangular box 3-1, are stamped a planar transparent cover plate 4-1; Planar transparent cover plate 4-1 is enclosed in each Salar light-gathering receiving mechanism in the rectangular box 3-1; Each Salar light-gathering receiving mechanism proper alignment is in rectangular box 3-1, and each Salar light-gathering receiving mechanism all is made up of a paraboloid of revolution reflective mirror and a luminous energy receiver
Big plane mirror 1-1-1 has all been installed in front at the reflective surface of first group of Salar light-gathering receiving mechanism paraboloid of revolution reflective mirror; Big plane mirror 1-1-2 has all been installed in front at the reflective surface of second group of Salar light-gathering receiving mechanism paraboloid of revolution reflective mirror; Big plane mirror 1-1-3 has all been installed in front at the reflective surface of the 3rd group of Salar light-gathering receiving mechanism paraboloid of revolution reflective mirror; Big plane mirror 1-1-4 has all been installed in front at the reflective surface of the 4th group of Salar light-gathering receiving mechanism paraboloid of revolution reflective mirror; Big plane mirror 1-1-5 has all been installed in front at the reflective surface of the 5th group of Salar light-gathering receiving mechanism paraboloid of revolution reflective mirror; The middle seat of above-mentioned five big plane mirrors all has a long straight light entrance slit along its long side direction; Above-mentioned five big plane mirrors and planar transparent cover plate 4-1 intersect 45; The hollow heat conduction cavity of the hemisphere face of first group of Salar light-gathering receiving mechanism is serially connected through heat pipe 9-1-3; The hollow heat conduction cavity of the hemisphere face of second group of Salar light-gathering receiving mechanism is serially connected through heat pipe 9-2-3; The hollow heat conduction cavity of the hemisphere face of the 3rd group of Salar light-gathering receiving mechanism is serially connected through heat pipe 9-3-3; The hollow heat conduction cavity of the hemisphere face of the 4th group of Salar light-gathering receiving mechanism is serially connected through heat pipe 9-4-3; The hollow heat conduction cavity of the hemisphere face of the 5th group of Salar light-gathering receiving mechanism is serially connected through heat pipe 9-5-3, and the lower end of heat pipe 9-1-3, heat pipe 9-2-3, heat pipe 9-3-3, heat pipe 9-4-3 and heat pipe 9-5-3 communicates with water tank 8-1 through cold water pipe 9-1-2, and the upper end of heat pipe 9-1-3, heat pipe 9-2-3, heat pipe 9-3-3, heat pipe 9-4-3 and heat pipe 9-5-3 communicates with water tank 8-1 through hot-water line 9-1-1.
Provided the structure of the first Salar light-gathering receiving mechanism among Fig. 4; The first Salar light-gathering receiving mechanism is made up of paraboloid of revolution reflective mirror 1-2-1 and luminous energy receiver 1-3-1 in Fig. 4; Luminous energy receiver 1-3-1 is made up of the hollow heat conduction cavity of paraboloid of revolution 5-1, taper seat reflective mirror 7-1 and hemisphere face transparent light guide lid 6-1; The top of taper seat reflective mirror 7-1 has a light incident circular hole
Taper seat reflective mirror 7-1 covers the paraboloid of revolution opening part at the hollow heat conduction cavity of paraboloid of revolution 5-1 closely; Hemisphere face transparent light guide lid 6-1 covers closely on the light incident circular hole of taper seat reflective mirror 7-1; Taper seat reflective mirror 7-1, hemisphere face transparent light guide lid 6-1 and the hollow heat conduction cavity of paraboloid of revolution 5-1 constitute a closed cavities
Luminous energy receiver 1-3-1 is installed in the back side of the reflective surface of big plane mirror 1-1-1; The paraboloid of revolution opening of the hollow heat conduction cavity of paraboloid of revolution 5-1 is over against the light entrance slit of big plane mirror 1-1-1; The paraboloid of revolution opening of the hollow heat conduction cavity of paraboloid of revolution 5-1 is over against the reflective surface of paraboloid of revolution reflective mirror 1-2-1; The center of circle of the centre of sphere of the paraboloid of revolution focus of the hollow heat conduction cavity of paraboloid of revolution 5-1 and hemisphere face transparent light guide lid 6-1 and the light incident circular hole of taper seat reflective mirror 7-1 and the focus of paraboloid of revolution reflective mirror 1-2-1 overlap; The focus of paraboloid of revolution reflective mirror 1-2-1 is positioned on the light entrance slit of big plane mirror 1-1-1
When sunshine during perpendicular to planar transparent cover plate 4-1 incident; The reflect focalization of incident ray through big plane mirror 1-1-1 and paraboloid of revolution reflective mirror 1-2-1 can both pass the light entrance slit of big plane mirror 1-1-1 and the light incident circular hole of taper seat reflective mirror 7-1 is radiated on the hollow heat conduction cavity of the paraboloid of revolution 5-1; The luminous energy that is radiated on the hollow heat conduction cavity of the paraboloid of revolution 5-1 converts heat energy into through the hollow heat conduction cavity of paraboloid of revolution 5-1; Because of taper seat reflective mirror 7-1, hemisphere face transparent light guide lid 6-1 and the hollow heat conduction cavity of paraboloid of revolution 5-1 constitute a closed cavities; And the light incident circular hole of taper seat reflective mirror 7-1 is very little; The light that gets into the light incident circular hole of taper seat reflective mirror 7-1 repeatedly is radiated on the hollow heat conduction cavity of the paraboloid of revolution 5-1 through the reflection of taper seat reflective mirror 7-1; The luminous energy major part changes heat energy in closed cavities; Thereby significantly having improved the photo-thermal conversion ratio of luminous energy receiver 1-3-1, the structure of above-mentioned each Salar light-gathering receiving mechanism, each item size and luminous energy reception process are identical with the first Salar light-gathering receiving mechanism.
Claims (1)
1. parabolic closed housing daylighting secondary reflection concentration solar water heater; By rectangular box; Water tank; Cold water pipe; Hot-water line; The planar transparent cover plate; Big plane mirror and Salar light-gathering receiving mechanism constitute; Each Salar light-gathering receiving mechanism all is made up of a paraboloid of revolution reflective mirror and a luminous energy receiver; The luminous energy receiver of each Salar light-gathering receiving mechanism is by a hollow heat conduction cavity of the paraboloid of revolution; A taper seat reflective mirror and a hemisphere face transparent light guide lid constitute; It is characterized in that: the Salar light-gathering receiving mechanism is divided into many groups; The square big plane mirror of a block length has all been installed in front at each group Salar light-gathering receiving mechanism; Each big plane mirror and planar transparent cover plate of organizing the Salar light-gathering receiving mechanism intersects 45; Each luminous energy receiver of organizing the Salar light-gathering receiving mechanism is installed in the back side of reflective surface of the big plane mirror of this group; Each organizes the reflective surface of paraboloid of revolution opening over against the paraboloid of revolution opening of the light entrance slit of the big plane mirror of this group and the hollow heat conduction cavity of each paraboloid of revolution over against this paraboloid of revolution reflective mirror of the hollow heat conduction cavity of each paraboloid of revolution of the luminous energy receiver of Salar light-gathering receiving mechanism; The focus of the center of circle of the centre of sphere of the paraboloid of revolution focus of the hollow heat conduction cavity of the paraboloid of revolution of the luminous energy receiver of each Salar light-gathering receiving mechanism and hemisphere face transparent light guide lid and the light incident circular hole of taper seat reflective mirror and the paraboloid of revolution reflective mirror of this Salar light-gathering receiving mechanism overlaps; Each focus of organizing the paraboloid of revolution reflective mirror of Salar light-gathering receiving mechanism is positioned on the light entrance slit of big plane mirror of this group
When sunshine during perpendicular to the incident of planar transparent cover plate; Can both pass the light entrance slit of big plane mirror behind the reflect focalization of big plane mirror and the paraboloid of revolution reflective mirror of incident ray through each group Salar light-gathering receiving mechanism and the light incident circular hole of taper seat reflective mirror is radiated on the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver; The luminous energy that is radiated on the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver converts heat energy into through the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver; Because of closed cavities of the hollow heat conduction cavity formation of hemisphere face transparent light guide lid, taper seat reflective mirror and the paraboloid of revolution of each luminous energy receiver; And the light incident circular hole of the taper seat reflective mirror of each luminous energy receiver is very little; The light of light incident circular hole that gets into the taper seat reflective mirror of each luminous energy receiver repeatedly is radiated on the hollow heat conduction cavity of the paraboloid of revolution of each luminous energy receiver through the reflection of the taper seat reflective mirror of each luminous energy receiver; The major part of luminous energy changes heat energy in closed cavities, therefore significantly improved the photo-thermal conversion ratio of each luminous energy receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010500593XA CN101943489B (en) | 2010-09-30 | 2010-09-30 | Secondary reflection light-gathering solar water heater lighted by paraboloid closed cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010500593XA CN101943489B (en) | 2010-09-30 | 2010-09-30 | Secondary reflection light-gathering solar water heater lighted by paraboloid closed cavity |
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| Publication Number | Publication Date |
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| CN101943489A CN101943489A (en) | 2011-01-12 |
| CN101943489B true CN101943489B (en) | 2012-02-22 |
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| CN201010500593XA Expired - Fee Related CN101943489B (en) | 2010-09-30 | 2010-09-30 | Secondary reflection light-gathering solar water heater lighted by paraboloid closed cavity |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102278825A (en) * | 2011-05-25 | 2011-12-14 | 冯宇 | Solar water heater using multiple reflective heat collectors |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3982527A (en) * | 1974-01-02 | 1976-09-28 | Cheng Chen Yen | Method and apparatus for concentrating, harvesting and storing of solar energy |
| US4131485A (en) * | 1977-08-08 | 1978-12-26 | Motorola, Inc. | Solar energy collector and concentrator |
| DE4430517C2 (en) * | 1993-09-18 | 1997-01-09 | Deutsche Forsch Luft Raumfahrt | Channel collector |
| CN1152215C (en) * | 2001-04-09 | 2004-06-02 | 周文君 | Multifunctional light-gathering mixer using solar energy in full spectrum |
| JP2005076967A (en) * | 2003-08-29 | 2005-03-24 | Sanden Corp | Solar heat collection device |
| CN200976056Y (en) * | 2006-11-14 | 2007-11-14 | 刘红雄 | Sunlight guiding device |
| CN101345497A (en) * | 2007-07-09 | 2009-01-14 | 上海华达运新能源科技有限公司 | Curved surface sunlight receiver |
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Granted publication date: 20120222 Termination date: 20130930 |