CN102208474B - High-efficiency solar energy collection and utilization grille condenser - Google Patents
High-efficiency solar energy collection and utilization grille condenser Download PDFInfo
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- CN102208474B CN102208474B CN2011101549135A CN201110154913A CN102208474B CN 102208474 B CN102208474 B CN 102208474B CN 2011101549135 A CN2011101549135 A CN 2011101549135A CN 201110154913 A CN201110154913 A CN 201110154913A CN 102208474 B CN102208474 B CN 102208474B
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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
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a high-efficiency solar energy collection and utilization grille condenser. A plurality of slotted condensers are crossly distributed along the east-west direction and the south-north direction so as to form a grille condenser provided with a plurality of identical grille units, wherein a silicon cell is arranged on the bottom surface of each grille unit of the grille condenser; and compound parabolic condensers are arranged on two side faces of each slotted condenser. A condenser array is formed on the grille condenser, and each grille unit is identical, so that the space area can be fully utilized; moreover, because the condensers are integrated in the east-west direction and the south-north direction, and the condensing ratio is higher than that of slotted condensers in the single direction, solar energy can be averagely collected for seven hours per day throughout the year under the condition that the sun is not tracked, the solar energy is collected and utilized more efficiently, and the cost of the silicon cells can be more effectively saved.
Description
Technical field
The present invention relates to a kind of condenser, a kind of specifically solar energy highly effective is collected and is utilized the grill-shaped condenser.
Background technology
It is day by day exhausted to be accompanied by fossil energies such as coal, oil, natural gas, and the ecological disruption and the greenhouse effect that are produced thus are serious day by day, and solar energy is just obtaining extensive concern as pollution-free, reproducible new forms of energy.
Solar concentrating collector mainly is made up of concentrator, absorber and tracking system three parts.Distinguish according to the optically focused principle, concentrating collector can be divided into reflecting condensation and two big types of refraction optically focused basically, and the difference according to concentrator in each type can be divided into some kinds again; Reflecting condensation mainly is slot light collection, dish formula optically focused, paraboloid of revolution optically focused; Refraction optically focused mainly is to adopt the Fei Nier lens.In order to satisfy the requirement that solar energy utilizes, simplify follower, improve reliability, reduce cost, the concentrating collector kind of developing in this century is a lot, but the quantity of applying is few more than flat plate collector, and the commercialization degree is also low.What application was more in the reflection concentration type heat collector is rotating paraboloidal mirror concentrating collector (point focusing) and flute profile paraboloidal mirror concentrating collector (line focus).The former can obtain high temperature, but will carry out two-dimensional tracking; Temperature during the latter can obtain is followed the tracks of as long as carry out one dimension.These two kinds of concentrating collectors just have application in the beginning of this century; Carried out many improvement in decades,, developed high reflecting material as improving the reflecting surface machining accuracy; Exploitation high reliability follower etc.; These two kinds of paraboloidal mirror concentrating collectors can satisfy the requirement that various medium and high temperature solar energy utilize fully now, but because cost is high, have limited their extensive use.
Occur a kind of " composite parabolic mirror concentrating collector " in the world (CPC) seventies, and it is made up of two flute profile parabolic reflectors, need not follow the tracks of the sun, at most only need be with doing adjustment slightly season, but just optically focused obtains higher temperature.Its optically focused is than generally below 10, when optically focused than fixedly mounting when following 3, do not adjust.At that time, many people thought very highly to CPC, even thought an important breakthrough of solar energy utilization technique, and prophesy will be used widely.But gone over decades, and CPC still just is applied in the minority demonstration project, do not resemble a large amount of uses flat plate collector and the vacuum tube collector.The many units of China once carried out development to CPC in the seventies and eighties, and a small amount of application is also arranged, but basically all inactive now.
Other reflection-type beam condenser also has conical mirror, spherical reflector, bar shaped speculum, bucket type flute profile speculum, plane.Paraboloidal mirror concentrator etc.In addition, also has a kind of condenser that is applied in the tower type solar power station--heliostat.Heliostat is made up of many plane mirrors or curved reflector, and these speculums all reflex to sunlight on the same absorber under computer control, and absorber can reach very high temperature, obtains very big energy.Utilize the refraction principle of light can process the refraction type light gathering device, once had the people to assemble sunlight with two lens in history and carry out the performance of deposite metal at Paris, FRA.Someone utilizes one group of lens and is aided with level crossing and is assembled into the solar energy high temperature stove.Obviously, glass lens is heavier, and manufacturing process is complicated, and cost is high, is difficult to do very greatly.So the refraction type light gathering device does not have any development for a long time.The seventies, the someone develops large-scale Fresnel lens in the world, attempts to be used to make solar concentrating collector.Fresnel lens is the condenser of complanation, and is in light weight, and price comparison is low, and the branch of point focusing and line focus is also arranged, and generally processed by polymethyl methacrylate or other transparent plastic, and also useful glass is made, and is mainly used in the concentrator solar cell electricity generation system.China from the seventies until the nineties, the Fresnel lens that is used for solar energy equipment has been carried out development.Someone adopts mould pressing method to process large-area flexible transparent plastic Fresnel lens, and also the someone adopts the point focusing Fresnel lens of combination forming cutter processing diameter 1.5m, and the result is little desirable.
Summary of the invention
Technical problem to be solved by this invention is; Solve the shortcoming that above prior art exists; Provide a kind of solar energy highly effective to collect and utilize the grill-shaped condenser; Need not to follow the tracks of the sun and can average of the whole year can both collect 7 hours solar energy every day, collect and utilize solar energy more efficient, and effective save silicon battery.
The technical scheme that the present invention solves above technical problem is:
Solar energy highly effective is collected and is utilized the grill-shaped condenser; Cross one another along East and West direction and north-south to distribute by many long tank types condenser and form grill-shaped condenser with a plurality of identical grill unit; The bottom surface of each grill unit of grill-shaped condenser all is provided with silion cell, and two sides of slot light collection mirror all are the compound parabolic face condensers.
Like this, on grid type condenser of the present invention, form a condenser array, each grill unit all is living, so just can make full use of spatial area; Because condenser is the comprehensive of 2 directions of thing and north and south; Optically focused is higher than unidirectional slot light collection mirror than also; Need not to follow the tracks of the sun and can average of the whole year can both collect 7 hours solar energy every day, collect and utilize solar energy more efficient, can more effective save silicon battery save cost.
The technical scheme that the present invention further limits is:
Aforesaid solar energy highly effective is collected and utilized grill-shaped condenser, the collection angle of north-south slot light collection mirror is 55 °～64 °; The collection angle of East and West direction slot light collection mirror is 105 °～120 °.In North and South direction; The excursion of 12 sun angles is 47 degree from 12 of Winter Solstice to the Summer Solstice; If the condenser that but adopts 47 degree collection angles is in the acquisition time in Winter Solstice and the Summer Solstice but seldom because from 9 of Winter Solstice to the Summer Solstice 9 sun angles variation be 64 degree, so we take to be at least the 55 compound parabolic face condensers of spending; Reduce collection angle slightly and can under the situation of limited minimizing acquisition time, significantly increase the optically focused ratio, thus the consumption of saving silion cell.At east-west direction, the variation of sun angle with the velocity variations of 15 degree per hour, is not always the case basically throughout the year, thus my door can both collect 7 hours for guaranteeing average every day, so we generally take the above compound parabolic face condenser of 105 degree collection angles.
Aforesaid solar energy highly effective is collected and is utilized the grill-shaped condenser, and the grill-shaped condenser back side is provided with the silion cell draw-in groove, and being set to of silion cell draw-in groove is one of following three kinds: respectively be provided with a silion cell draw-in groove at the back side of each grill unit; Be provided with the silion cell draw-in groove at the grill-shaped condenser back side along East and West direction or north-south whole piece or whole row; Be provided with the silion cell draw-in groove of an integral body at the grill-shaped condenser back side.Can make things convenient for silion cell to fix like this.
Aforesaid solar energy highly effective is collected and is utilized the grill-shaped condenser, the size of each grill unit of grill-shaped condenser and highly all be that size with silicon cell is directly proportional.This mainly is a section problem of considering single (many) crystal silicon battery; The size of each grill-shaped is set and highly all is that size with the battery sheet is directly proportional; Effective save silicon battery, and solar energy effectively utilizes in the research field, how the save silicon battery is a difficult point place; Battery sheet standard size is 125mm*125mm; The polycrystalline sheet also has 156mm*156mm's, because silion cell has only 2 main grid lines, and four angles of monocrystalline silicon are fillets; So the section of monocrystalline silicon piece within 4 (maximum 2 of each direction) is only more satisfactory; Polysilicon is unfilled corner not, so effectively practiced thrift silion cell as long as guarantee having cut 2 at most with main grid line vertical direction.
Aforesaid solar energy highly effective is collected and utilized grill-shaped condenser, the height of grill-shaped condenser is 30mm-80mm.The optically focused ratio of grill-shaped condenser is greater than 2.
Advantage of the present invention is: form a condenser array on the grid type condenser of the present invention; Each grill unit all is living; Therefore under identical illumination condition, the light belt that on silion cell, forms also is the same, so the electric current of every battery also is the same with power; So just can make full use of spatial area, will not stay a segment distance to avoid taking place the bucket effect in the space of condenser both sides as the slot light collection electricity generation system.Grid type condenser of the present invention in addition is because be the comprehensive of 2 directions of thing and north and south; So optically focused is higher than unidirectional slot light collection mirror than also; Need not to follow the tracks of the sun and can average of the whole year can both collect 7 hours solar energy every day; Collect and utilize solar energy more efficient, can more effective save silicon battery save cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of slot light collection mirror.
Embodiment
A kind of solar energy highly effective that present embodiment provides is collected and is utilized the grill-shaped condenser; Structure is as shown in Figure 1; Cross one another along East and West direction and north-south to distribute by many long tank types condenser 1 and form grill-shaped condenser with a plurality of identical grill unit 2; The bottom surface of each grill unit 2 of grill-shaped condenser all is provided with silicon cell 3, and the structure of slot light collection mirror 1 is as shown in Figure 2, and its two sides all are compound parabolic face condensers 4.The size of each grill unit 2 of grill-shaped condenser and highly all be that size with silicon cell 3 is directly proportional.The height of grill-shaped condenser is 30mm-80mm.The optically focused ratio of grill-shaped condenser is greater than 2.The collection angle of north-south slot light collection mirror is 55 °～64 °; The collection angle of East and West direction slot light collection mirror is 105 °～120 °.
Condenser of the present invention is that the slot light collection mirror by 2 directions intersects each other and forms, and one is along East and West direction, and one is along the north-south, and each slot light collection mirror all is the compound parabolic face condenser at compound certain collecting angle.Because the sun also is that both direction all has to the incidence angle of the earth, so adopt the composite parabolic grill-shaped condenser of three dimensional intersection can collect light preferably.In North and South direction; The excursion of 12 sun angles is 47 degree from 12 of Winter Solstice to the Summer Solstice; If the condenser that but adopts 47 degree collection angles is in the acquisition time in Winter Solstice and the Summer Solstice but seldom because from 9 of Winter Solstice to the Summer Solstice 9 sun angles variation be 64 degree, so take to be at least the 55 compound parabolic face condensers of spending; Reduce collection angle slightly and can under the situation of limited minimizing acquisition time, significantly increase the optically focused ratio, thus the consumption of saving silion cell.At east-west direction, the variation of sun angle with the velocity variations of 15 degree per hour, is not always the case basically throughout the year, and institute thinks and guarantees can both to collect 7 hours average every day, generally takes the above compound parabolic face condenser of 105 degree collection angles.Except requirement, also to consider the section problem of single (many) crystal silicon battery, because the size of each grill-shaped and highly all be that size with the battery sheet is directly proportional to collection angle.Battery sheet standard size is 125mm*125mm; The polycrystalline sheet also has 156mm*156mm's, because silion cell has only 2 main grid lines, and four angles of monocrystalline silicon are fillets; Lack one; So it is more satisfactory that the section of monocrystalline silicon piece within 4 (maximum 2 of each direction) is only, polysilicon is unfilled corner not, so cutting 2 as long as guarantee at most with main grid line vertical direction.In addition, the condenser height generally is controlled at 30mm-80mm, and the optically focused of condenser is than generally being controlled at more than 2.
The grill-shaped condenser back side is provided with the silion cell draw-in groove, and being provided with of silion cell draw-in groove can be respectively to be provided with a silion cell draw-in groove at the back side of each grill unit; Also can be provided with the silion cell draw-in groove along East and West direction or north-south whole piece or whole row at the grill-shaped condenser back side; It also can be the silion cell draw-in groove that is provided with an integral body at the grill-shaped condenser back side.The silion cell draw-in groove is set can make things convenient for silion cell to fix.
The making of grill-shaped condenser of the present invention generally takes the plastic material mold pressing to form, and commonly used have PPS plastics and bright aluminium, though the former insulation and thermal insulation, reflectivity is lower, needs to paste reflective membrane to guarantee high-effective concentration; The latter can guarantee the reflectivity more than 85 percent, but because metallic conduction need be carried out insulation when laying battery.Form array to each monomer according to the requirement of output voltage then, add other assemblies and just can form solar energy highly effective collection of the present invention and utilization.The present invention mainly is layed in the roofing angle and equals on the roofing of geographic latitude.
Each piece of grid type condenser array of the present invention all is living; Therefore under identical illumination condition; The light belt that on silion cell, forms also is the same; So the electric current of every battery also is the same with power, so just can make full use of spatial area, to not stay a segment distance to avoid taking place the bucket effect in the space of condenser both sides as the slot light collection electricity generation system.Form optically focused is because be the comprehensive of 2 directions in addition, so optically focused is higher than unidirectional slot light collection mirror than also, and can more effective save silicon battery save cost.
Except that the foregoing description, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of requirement of the present invention.
Claims (5)
1. solar energy highly effective is collected and is utilized the grill-shaped condenser; It is characterized in that: being crossed one another along East and West direction and north-south to distribute by many long tank types condenser forms the grill-shaped condenser with a plurality of identical grill unit; The bottom surface of said each grill unit of grill-shaped condenser all is provided with silion cell, and two sides of said slot light collection mirror all are the compound parabolic face condensers; The collection angle of said north-south slot light collection mirror is 55 °～64 °; The collection angle of said East and West direction slot light collection mirror is 105 °～120 °.
2. solar energy highly effective as claimed in claim 1 is collected and is utilized the grill-shaped condenser; It is characterized in that: the said grill-shaped condenser back side is provided with the silion cell draw-in groove, and being set to of said silion cell draw-in groove is one of following three kinds: respectively be provided with a silion cell draw-in groove at the back side of each grill unit; Be provided with the silion cell draw-in groove at the grill-shaped condenser back side along East and West direction or north-south whole piece or whole row; Be provided with the silion cell draw-in groove of an integral body at the grill-shaped condenser back side.
3. solar energy highly effective as claimed in claim 1 is collected and is utilized the grill-shaped condenser, it is characterized in that: the size of said each grill unit of grill-shaped condenser and highly all be that size with silicon cell is directly proportional.
4. solar energy highly effective as claimed in claim 1 is collected and is utilized the grill-shaped condenser, and it is characterized in that: the height of said grill-shaped condenser is 30mm-80mm.
5. solar energy highly effective as claimed in claim 1 is collected and utilized the grill-shaped condenser, it is characterized in that: the optically focused ratio of said grill-shaped condenser is greater than 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101549135A CN102208474B (en) | 2011-01-28 | 2011-06-10 | High-efficiency solar energy collection and utilization grille condenser |
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| CN201110032443.5 | 2011-01-28 | ||
| CN201110032443 | 2011-01-28 | ||
| CN2011101549135A CN102208474B (en) | 2011-01-28 | 2011-06-10 | High-efficiency solar energy collection and utilization grille condenser |
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| CN102208474A CN102208474A (en) | 2011-10-05 |
| CN102208474B true CN102208474B (en) | 2012-11-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002314112A (en) * | 2001-04-16 | 2002-10-25 | Sumitomo 3M Ltd | Photovoltaic power generating system |
| CN2909536Y (en) * | 2006-04-17 | 2007-06-06 | 黄惠民 | Solar silicon cells |
| CN201041598Y (en) * | 2007-05-16 | 2008-03-26 | 张青专 | Combined line focusing sunshine focusing mirror |
| CN101595569A (en) * | 2006-12-13 | 2009-12-02 | 毕达哥拉斯太阳公司 | Solar radiation collector |
| CN101872796A (en) * | 2009-04-24 | 2010-10-27 | 云南师范大学 | High-efficiency low-condensation photovoltaic assembly |
| CN202111134U (en) * | 2011-01-28 | 2012-01-11 | 徐诵舜 | Grating type lens condenser |
-
2011
- 2011-06-10 CN CN2011101549135A patent/CN102208474B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002314112A (en) * | 2001-04-16 | 2002-10-25 | Sumitomo 3M Ltd | Photovoltaic power generating system |
| CN2909536Y (en) * | 2006-04-17 | 2007-06-06 | 黄惠民 | Solar silicon cells |
| CN101595569A (en) * | 2006-12-13 | 2009-12-02 | 毕达哥拉斯太阳公司 | Solar radiation collector |
| CN201041598Y (en) * | 2007-05-16 | 2008-03-26 | 张青专 | Combined line focusing sunshine focusing mirror |
| CN101872796A (en) * | 2009-04-24 | 2010-10-27 | 云南师范大学 | High-efficiency low-condensation photovoltaic assembly |
| CN202111134U (en) * | 2011-01-28 | 2012-01-11 | 徐诵舜 | Grating type lens condenser |
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| CN102208474A (en) | 2011-10-05 |
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Effective date of registration: 20141020 Address after: 211100, No. 39 Lake Road, Science Park, Jiangning District, Jiangsu, Nanjing Patentee after: Xu Songshun Address before: 211100, No. 39 Lake Road, Science Park, Jiangning District, Jiangsu, Nanjing Patentee before: Xu Songshun Patentee before: Nanjing Nanzhou New Energy Research and Development Co., Ltd. Effective date of registration: 20141020 Address after: 211100, No. 39 Lake Road, Science Park, Jiangning District, Jiangsu, Nanjing Patentee after: Xu Songshun Address before: 211100, No. 39 Lake Road, Science Park, Jiangning District, Jiangsu, Nanjing Patentee before: Xu Songshun Patentee before: Nanjing Nanzhou New Energy Research and Development Co., Ltd. |
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