CN101988752B - Solar energy water heater for condensing light through secondary reflection parabolic cylinder surface and collecting light through parabolic cylinder surface closed cavity body - Google Patents
Solar energy water heater for condensing light through secondary reflection parabolic cylinder surface and collecting light through parabolic cylinder surface closed cavity body Download PDFInfo
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- CN101988752B CN101988752B CN2010105255371A CN201010525537A CN101988752B CN 101988752 B CN101988752 B CN 101988752B CN 2010105255371 A CN2010105255371 A CN 2010105255371A CN 201010525537 A CN201010525537 A CN 201010525537A CN 101988752 B CN101988752 B CN 101988752B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
一种二次反射抛物柱面聚光抛物柱面闭合腔体采光太阳能热水器，该装置通过大平面反光镜和抛物柱面反光镜的反光聚焦作用接收太阳能，可大幅提高太阳能的接收效率，可用来实现在强光和弱光的环境下太阳能的采集和接收。
A secondary reflective parabolic cylindrical surface concentrating parabolic cylindrical surface daylighting solar water heater with a closed cavity. The device receives solar energy through the reflective focusing effect of the large plane reflector and the parabolic reflector, which can greatly improve the receiving efficiency of solar energy and can be used for Realize the collection and reception of solar energy in the environment of 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 secondary reflection parabolic cylinder optically focused parabolic cylinder closed housing daylighting solar water heater that utilizes parabolic cylinder optically focused principle to receive solar energy; This device receives solar energy through the reflective focussing force of reflective surface, 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; Each Salar light-gathering receiving mechanism proper alignment is in 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, and each Salar light-gathering receiving mechanism all is made up of a big plane mirror, a parabolic cylinder reflective mirror and a luminous energy receiver
The big plane mirror of each Salar light-gathering receiving mechanism is parallel to each other; The big plane mirror and the planar transparent cover plate of each Salar light-gathering receiving mechanism intersect 45; The middle seat of each big plane mirror all has a long straight light entrance slit along its long side direction; All parallel with same long limit of rectangular box and the light entrance slit big plane mirror of the light entrance slit of each big plane mirror is positioned on the same plane parallel with the planar transparent cover plate
The luminous energy receiver of each Salar light-gathering receiving mechanism is made of long straight semi-cylindrical transparent light guide lid of a long straight hollow heat pipe of parabolic cylinder, one and the square facet mirror of two block lengths; The lower end of the hollow heat pipe of parabolic cylinder of each luminous energy receiver communicates with water tank by a cold water pipe; The upper end of the hollow heat pipe of parabolic cylinder of each luminous energy receiver communicates with water tank by a hot-water line; The both sides of the plane of symmetry of the hollow heat pipe of parabolic cylinder that is positioned at this each luminous energy receiver of two facet mirror symmetries of each luminous energy receiver; Wherein a facet mirror long limit is connected with a straight flange of the hollow heat pipe of parabolic cylinder of this Salar light-gathering receiving mechanism; A long limit of another piece facet mirror is connected with another straight flange of the hollow heat pipe of parabolic cylinder of this Salar light-gathering receiving mechanism; The two other of two facet mirrors forms the light entrance slit that width is identical between the long limit; The semi-cylindrical transparent light guide of this luminous energy receiver is covered on this light entrance slit; The semi-cylindrical transparent light guide lid of each Salar light-gathering receiving mechanism, the hollow heat pipe of parabolic cylinder and two facet mirrors constitute a closed cavities
The luminous energy receiver of each Salar light-gathering receiving mechanism is installed in the back side of reflective surface of the big plane mirror of this Salar light-gathering receiving mechanism; The opening of the hollow heat pipe of parabolic cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism is over against the reflective surface of the parabolic cylinder reflective mirror of this Salar light-gathering receiving mechanism; The opening of the hollow heat pipe of parabolic cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism is over against the light entrance slit of the big plane mirror of this Salar light-gathering receiving mechanism; The focal line of the axis of the focal line of the hollow heat pipe of parabolic cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism and semi-cylindrical transparent light guide lid and the parabolic cylinder reflective mirror of this Salar light-gathering receiving mechanism overlaps; The focal line that forms the parabolic cylinder reflective mirror of light entrance slit and this Salar light-gathering receiving mechanism between two facet mirrors of the luminous energy receiver of each Salar light-gathering receiving mechanism overlaps; The light entrance slit of the focal line of the parabolic cylinder reflective mirror of each Salar light-gathering receiving mechanism and the big plane mirror of this Salar light-gathering receiving mechanism overlaps; The plane of symmetry of the parabolic cylinder reflective mirror of each Salar light-gathering receiving mechanism and the big plane mirror of this Salar light-gathering receiving mechanism intersect 45
When sunshine during perpendicular to the incident of planar transparent cover plate; Can both pass behind the reflect focalization of big plane mirror and the parabolic cylinder reflective mirror of incident ray through each Salar light-gathering receiving mechanism that the light entrance slit is radiated on the hollow heat pipe of parabolic cylinder of each luminous energy receiver between light entrance slit and two facet mirrors of big plane mirror; The luminous energy that is radiated on the hollow heat pipe of parabolic cylinder converts heat energy into through the hollow heat pipe of parabolic cylinder; Semi-cylindrical transparent light guide lid, the hollow heat pipe of parabolic cylinder and closed cavities of two facet mirrors formations because of each luminous energy receiver; And the light entrance slit that forms between two facet mirrors is very narrow; The light that gets into the light entrance slit repeatedly is radiated on the hollow heat pipe of parabolic cylinder of each luminous energy receiver through the reflection of two facet mirrors 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 parabolic cylinder 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 enlarged drawing of the Salar light-gathering receiving mechanism cutaway view of the embodiment of the invention.
Fig. 4 is the sketch map of parabolic cylinder.
In the parabolic cylinder pie graph of Fig. 4: parabola L, directrix L1, summit O, focus f, symmetry axis L2, parabolic cylinder S, directrix plane S1, plane of symmetry S2, focal line L3.
The specific embodiment
In Fig. 1 and Fig. 2; The Salar light-gathering receiving mechanism one that is made up of big plane mirror 1-1-1 and parabolic cylinder reflective mirror 1-2-1 and luminous energy receiver 1-3-1 has been installed in rectangular box 3-1; The Salar light-gathering receiving mechanism two that constitutes by big plane mirror 1-1-2 and parabolic cylinder reflective mirror 1-2-2 and luminous energy receiver 1-3-2; The Salar light-gathering receiving mechanism three that constitutes by big plane mirror 1-1-3 and parabolic cylinder reflective mirror 1-2-3 and luminous energy receiver 1-3-3; The Salar light-gathering receiving mechanism four that constitutes by big plane mirror 1-1-4 and parabolic cylinder reflective mirror 1-2-4 and luminous energy receiver 1-3-4; The Salar light-gathering receiving mechanism five that constitutes by big plane mirror 1-1-5 and parabolic cylinder reflective mirror 1-2-5 and luminous energy receiver 1-3-5; The proper alignment of five Salar light-gathering receiving mechanisms is in rectangular box 3-1; On rectangular box 3-1, be stamped a planar transparent cover plate 4-1; Planar transparent cover plate 4-1 is enclosed in five Salar light-gathering receiving mechanisms in the rectangular box 3-1
The middle seat of above-mentioned five big plane mirrors all has a long straight light entrance slit along its long side direction; All parallel with the long limit of rectangular box 3-1 and the light entrance slit each big plane mirror of the light entrance slit of above-mentioned five big plane mirrors is positioned on the same plane parallel with planar transparent cover plate 4-1; The reflective plane of above-mentioned five big plane mirrors and planar transparent cover plate 4-1 intersect 45
Provided the structure of the first Salar light-gathering receiving mechanism among Fig. 3; The first Salar light-gathering receiving mechanism is made up of big plane mirror 1-1-1, parabolic cylinder reflective mirror 1-2-1 and luminous energy receiver 1-3-1 in Fig. 3; Luminous energy receiver 1-3-1 is made up of a hollow heat pipe 5-5 of parabolic cylinder, semi-cylindrical transparent light guide lid 6-5, facet mirror 7-5-1 and a facet mirror 7-5-2; The lower end of the hollow heat pipe 5-5 of parabolic cylinder communicates with water tank 8-1 through cold water pipe 9-1-2; The upper end of the hollow heat pipe 5-5 of parabolic cylinder communicates with water tank 8-1 through hot-water line 9-1-1; The both sides of the plane of symmetry that is positioned at the hollow heat pipe 5-5 of parabolic cylinder of facet mirror 7-5-1 and facet mirror 7-5-2 symmetry; The long limit of facet mirror 7-5-1 is connected with the straight flange of the hollow heat pipe 5-5 of parabolic cylinder; The long limit of facet mirror 7-5-2 is connected with another straight flange of the hollow heat pipe 5-5 of parabolic cylinder, and the two other of facet mirror 7-5-1 and facet mirror 7-5-2 forms the light entrance slit that width is identical between the long limit, and semi-cylindrical transparent light guide lid 6-5 covers on this light entrance slit; Semi-cylindrical transparent light guide lid 6-5, the hollow heat pipe 5-5 of parabolic cylinder, facet mirror 7-5-1 and facet mirror 7-5-2 constitute a closed cavities
Luminous energy receiver 1-3-1 is installed in the back side of the reflective surface of this big plane mirror 1-1-1; The opening of the hollow heat pipe 5-5 of parabolic cylinder is over against the reflective surface of parabolic cylinder reflective mirror 1-2-1; The axis of the focal line of the hollow heat pipe 5-5 of parabolic cylinder and semi-cylindrical transparent light guide lid 6-5 and the focal line of parabolic cylinder reflective mirror 1-2-1 overlap; The focal line that forms light entrance slit and parabolic cylinder reflective mirror 1-2-1 between facet mirror 7-5-1 and the facet mirror 7-5-2 overlaps; The focal line of parabolic cylinder reflective mirror 1-2-1 overlaps with the light entrance slit of big plane mirror 1-1-1; The plane of symmetry of parabolic cylinder reflective mirror 1-2-1 intersects 45 with big plane mirror 1-1-1
When sunshine during perpendicular to planar transparent cover plate 4-1 incident; Can both pass behind the reflect focalization of incident ray through big plane mirror 1-1-1 and parabolic cylinder reflective mirror 1-2-1 that the light entrance slit is radiated on the hollow heat pipe 5-5 of parabolic cylinder between light entrance slit and facet mirror 7-5-1 and the facet mirror 7-5-2 of big plane mirror 1-1-1; The luminous energy that is radiated on the hollow heat pipe 5-5 of parabolic cylinder converts heat energy into through the hollow heat pipe 5-5 of parabolic cylinder; Because of semi-cylindrical transparent light guide lid 6-5, the hollow heat pipe 5-5 of parabolic cylinder, facet mirror 7-5-1 and facet mirror 7-5-2 constitute a closed cavities; And the light entrance slit that forms between facet mirror 7-5-1 and the facet mirror 7-5-2 is very narrow; The light that gets into this entrance slit of light repeatedly is radiated on the hollow heat pipe 5-5 of parabolic cylinder through the reflection of facet mirror 7-5-1 and facet mirror 7-5-2; The major part of luminous energy changes heat energy in closed cavities, therefore significantly improved the photo-thermal conversion ratio of luminous energy receiver 1-3-1.The structure of the luminous energy receiver of each Salar light-gathering receiving mechanism, each item size and luminous energy reception process are identical with luminous energy receiver 1-3-1.
Claims (1)
1. secondary reflection parabolic cylinder optically focused parabolic cylinder closed housing daylighting solar water heater; Constitute by rectangular box, water tank, cold water pipe, hot-water line, planar transparent cover plate and Salar light-gathering receiving mechanism; A plurality of Salar light-gathering receiving mechanisms have been installed in rectangular box; Each Salar light-gathering receiving mechanism all is made of a big plane mirror, a parabolic cylinder reflective mirror and a luminous energy receiver; The luminous energy receiver of each Salar light-gathering receiving mechanism is made of long straight semi-cylindrical transparent light guide lid of a long straight hollow heat pipe of parabolic cylinder, one and the square facet mirror of two block lengths; It is characterized in that: the luminous energy receiver of each Salar light-gathering receiving mechanism is installed in the back side of reflective surface of the big plane mirror of this Salar light-gathering receiving mechanism; The opening of the hollow heat pipe of parabolic cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism is over against the reflective surface of the parabolic cylinder reflective mirror of this Salar light-gathering receiving mechanism; The opening of the hollow heat pipe of parabolic cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism is over against the light entrance slit of the big plane mirror of this Salar light-gathering receiving mechanism; The focal line of the axis of the focal line of the hollow heat pipe of parabolic cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism and semi-cylindrical transparent light guide lid and the parabolic cylinder reflective mirror of this Salar light-gathering receiving mechanism overlaps; The focal line of the light entrance slit that forms between two facet mirrors of the luminous energy receiver of each Salar light-gathering receiving mechanism and the parabolic cylinder reflective mirror of this Salar light-gathering receiving mechanism overlaps; The light entrance slit of the focal line of the parabolic cylinder reflective mirror of each Salar light-gathering receiving mechanism and the big plane mirror of this Salar light-gathering receiving mechanism overlaps; The plane of symmetry of the parabolic cylinder reflective mirror of each Salar light-gathering receiving mechanism and the big plane mirror of this Salar light-gathering receiving mechanism intersect 45
When sunshine during perpendicular to the incident of planar transparent cover plate; Can both pass the light entrance slit of big plane mirror and the light entrance slit between two facet mirrors behind the reflect focalization of big plane mirror and the parabolic cylinder reflective mirror of incident ray through each Salar light-gathering receiving mechanism is radiated on the hollow heat pipe of parabolic cylinder of each luminous energy receiver; The luminous energy that is radiated on the hollow heat pipe of parabolic cylinder converts heat energy into through the hollow heat pipe of parabolic cylinder; Semi-cylindrical transparent light guide lid, the hollow heat pipe of parabolic cylinder and closed cavities of two facet mirrors formations because of each luminous energy receiver; And the light entrance slit that forms between two facet mirrors is very narrow; The light that gets into the light entrance slit repeatedly is radiated on the hollow heat pipe of parabolic cylinder of each luminous energy receiver through the reflection of two facet mirrors 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 |
|---|---|---|---|
| CN2010105255371A CN101988752B (en) | 2010-10-25 | 2010-10-25 | Solar energy water heater for condensing light through secondary reflection parabolic cylinder surface and collecting light through parabolic cylinder surface closed cavity body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105255371A CN101988752B (en) | 2010-10-25 | 2010-10-25 | Solar energy water heater for condensing light through secondary reflection parabolic cylinder surface and collecting light through parabolic cylinder surface closed cavity body |
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| Publication Number | Publication Date |
|---|---|
| CN101988752A CN101988752A (en) | 2011-03-23 |
| CN101988752B true CN101988752B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105255371A Expired - Fee Related CN101988752B (en) | 2010-10-25 | 2010-10-25 | Solar energy water heater for condensing light through secondary reflection parabolic cylinder surface and collecting light through parabolic cylinder surface closed cavity body |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313024A (en) * | 1977-04-05 | 1982-01-26 | Horne William E | Conversion of solar to electrical energy |
| CN1128324C (en) * | 1999-11-05 | 2003-11-19 | 南京春辉科技实业有限公司 | Solar stove |
| US6818818B2 (en) * | 2002-08-13 | 2004-11-16 | Esmond T. Goei | Concentrating solar energy receiver |
| CN101551169A (en) * | 2009-05-07 | 2009-10-07 | 上海交通大学 | Cavity type solar energy absorber |
| CN201875945U (en) * | 2010-10-25 | 2011-06-22 | 北京印刷学院 | Solar energy water heater adopting parabolic cylindrical surface for condensation and parabolic cylindrical surface closed cavity for lighting through secondary reflection |
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Granted publication date: 20120321 Termination date: 20131025 |