CN101988751B - Secondary reflective parabolic cylindrical-condensation cylindrical closed cavity lighting solar water heater - Google Patents

Secondary reflective parabolic cylindrical-condensation cylindrical closed cavity lighting solar water heater Download PDF

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Publication number
CN101988751B
CN101988751B CN2010105255155A CN201010525515A CN101988751B CN 101988751 B CN101988751 B CN 101988751B CN 2010105255155 A CN2010105255155 A CN 2010105255155A CN 201010525515 A CN201010525515 A CN 201010525515A CN 101988751 B CN101988751 B CN 101988751B
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China
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light
cylinder
receiving mechanism
gathering receiving
face
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Expired - Fee Related
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CN2010105255155A
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CN101988751A (en
Inventor
张立君
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Beijing Institute of Graphic Communication
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Beijing Institute of Graphic Communication
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The invention discloses a secondary reflective parabolic cylindrical-condensation cylindrical closed cavity lighting solar water heater. The solar water heater receives solar energy by reflecting and focusing effects of a large plane reflector and a parabolic cylindrical reflector. The solar water heater can greatly improve the receiving efficiency of the solar energy, and can be used for realizing collection and receiving of the solar energy under the environments of intense light and weak light.

Description

The cylindrical closed housing daylighting solar water heater of secondary reflection parabolic cylinder optically focused
Affiliated technical field:
The present invention relates to a kind of Application of Solar Energy technology; Particularly a kind of cylindrical closed housing daylighting solar water heater of secondary reflection parabolic cylinder optically focused 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 all is made of a long straight hollow heat pipe in the face of cylinder and a long straight semi-cylindrical transparent light guide lid; The axis direction of hollow heat pipe has a long straight light entrance slit along the face of cylinder; The lower end of the hollow heat pipe in the face of cylinder of each luminous energy receiver communicates with water tank by a cold water pipe; The upper end of the hollow heat pipe in the face of cylinder of each luminous energy receiver communicates with water tank by a hot-water line; The semi-cylindrical transparent light guide of this luminous energy receiver is covered on the light entrance slit of the hollow heat pipe in the face of cylinder of this luminous energy receiver; The hollow heat pipe of the semi-cylindrical transparent light guide lid and the face of cylinder of each luminous energy receiver constitutes 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 light entrance slit of the hollow heat pipe in the face of 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 focal line of the parabolic cylinder reflective mirror of the light entrance slit of the hollow heat pipe in the face of cylinder of the luminous energy receiver of each Salar light-gathering receiving mechanism and semi-cylindrical transparent light guide lid axis and 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; The light entrance slit that can both pass the hollow heat pipe of the light entrance slit and the face of cylinder of big plane mirror 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 in the face of cylinder of each luminous energy receiver; The luminous energy that is radiated on the hollow heat pipe in the face of cylinder converts heat energy into through the hollow heat pipe in the face of cylinder; Because of closed cavities of the hollow heat pipe formation in semi-cylindrical transparent light guide lid, the face of cylinder of each luminous energy receiver; And the light entrance slit of the hollow heat pipe in the face of cylinder is very narrow; The major part that gets into the luminous energy of light entrance slit 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 hollow heat pipe 5-4 in the face of cylinder and semi-cylindrical transparent light guide lid 6-4; The axis of hollow heat pipe 5-4 has a light entrance slit that width is identical along the face of cylinder; Semi-cylindrical transparent light guide lid 6-4 covers on this light entrance slit, and the lower end of the hollow heat pipe 5-4 in the face of cylinder communicates with water tank 8-1 through cold water pipe 9-1-2, and the upper end of the hollow heat pipe 5-4 in the face of cylinder communicates with water tank 8-1 through hot-water line 9-1-1; Semi-cylindrical transparent light guide lid 6-4 and the hollow heat pipe 5-4 in the face of cylinder 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 focal line of the axis of the hollow heat pipe 5-4 in the face of cylinder and parabolic cylinder reflective mirror 1-2-1 is parallel to each other; The axis of the hollow heat pipe 5-4 in the face of cylinder is positioned on the plane of symmetry of parabolic cylinder reflective mirror 1-2-1; The axis of the light entrance slit of the hollow heat pipe 5-4 in the face of cylinder and semi-cylindrical transparent light guide lid 6-4 and the focal line of parabolic cylinder reflective mirror 1-2-1 overlap; The focal line of parabolic cylinder reflective mirror 1-2-1 overlaps with the light entrance slit of big plane mirror 1-1-1, and 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 the light entrance slit of big plane mirror 1-1-1 and the light entrance slit of the hollow heat pipe 5-4 in the face of cylinder behind the reflect focalization of incident ray through big plane mirror 1-1-1 and parabolic cylinder reflective mirror 1-2-1 is radiated on the hollow heat pipe 5-4 in the face of cylinder; The luminous energy that is radiated on the hollow heat pipe 5-4 in the face of cylinder converts heat energy into through the hollow heat pipe 5-4 in the face of cylinder; Because of semi-cylindrical transparent light guide lid 6-4, the hollow heat pipe 5-4 in the face of cylinder constitute a closed cavities; And the light entrance slit of the hollow heat pipe 5-4 in the face of cylinder is very narrow; The major part that gets into the luminous energy of light entrance slit 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. cylindrical closed housing daylighting solar water heater of secondary reflection parabolic cylinder optically focused; 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 all is made of a long straight hollow heat pipe in the face of cylinder and a long straight semi-cylindrical transparent light guide lid; 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 light entrance slit of the hollow heat pipe in the face of 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 focal line of the axis of the light entrance slit of the hollow heat pipe in the face of 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 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; The light entrance slit that can both pass the hollow heat pipe of the light entrance slit and the face of cylinder of big plane mirror 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 in the face of cylinder of each luminous energy receiver; The luminous energy that is radiated on the hollow heat pipe in the face of cylinder converts heat energy into through the hollow heat pipe in the face of cylinder; Because of closed cavities of the hollow heat pipe formation in semi-cylindrical transparent light guide lid, the face of cylinder of each luminous energy receiver; And the light entrance slit of the hollow heat pipe in the face of cylinder is very narrow; The major part that gets into the luminous energy of light entrance slit changes heat energy in closed cavities, therefore significantly improved the photo-thermal conversion ratio of each luminous energy receiver.
CN2010105255155A 2010-10-25 2010-10-25 Secondary reflective parabolic cylindrical-condensation cylindrical closed cavity lighting solar water heater Expired - Fee Related CN101988751B (en)

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CN2010105255155A CN101988751B (en) 2010-10-25 2010-10-25 Secondary reflective parabolic cylindrical-condensation cylindrical closed cavity lighting solar water heater

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CN101988751B true CN101988751B (en) 2012-02-15

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
US6818818B2 (en) * 2002-08-13 2004-11-16 Esmond T. Goei Concentrating solar energy receiver
DE102008021730A1 (en) * 2007-05-01 2008-11-06 Samland und Aatz GbR (vertretungsberechtigte Gesellschafter: Thomas Samland, 78166 Donaueschingen, Bernd Aatz, 79244 Münstertal) Solar system for converting solar electromagnetic radiation energy into electrical energy, has absorber arranged parallel to rotation axes of reflectors in center of module, and solar cells arranged in rows
CN101576649A (en) * 2009-06-24 2009-11-11 黄建文 Device for transmitting luminous energy by utilizing paraboloidal mirror
CN201875944U (en) * 2010-10-25 2011-06-22 北京印刷学院 Secondary reflecting parabolic cylindrical surface condensing cylindrical closed cavity daylighting solar water heater

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Granted publication date: 20120215

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