CN1049278C - Translationally tracking solar energy collector - Google Patents
Translationally tracking solar energy collector Download PDFInfo
- Publication number
- CN1049278C CN1049278C CN93109064A CN93109064A CN1049278C CN 1049278 C CN1049278 C CN 1049278C CN 93109064 A CN93109064 A CN 93109064A CN 93109064 A CN93109064 A CN 93109064A CN 1049278 C CN1049278 C CN 1049278C
- Authority
- CN
- China
- Prior art keywords
- reflector
- tracking
- energy
- guide rail
- speculum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/20—Arrangements for moving or orienting solar heat collector modules for linear movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
- F24S30/428—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis with inclined axis
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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
Abstract
The present invention relates to a translational tracking solar energy collector which is provided with a bracket, a reflector, an energy transduction component, a motion guide rail of the reflector and a tracking driving device, wherein the bracket supports the reflector to cause the shaft line to be in the north-south direction and the included angle of the shaft line and a horizontal surface is equal to the latitude value of a use position. The present invention is characterized in that the motion guide rail of the reflector is a straight guide rail, the relative positions of the reflector and the energy transduction component are moved in parallel so that reflected sunlight irradiates the surface of the energy transduction component to achieve the purpose of tracking by using the characteristic that when the irradiation angle of the sunlight is changed, a focal line focused by the reflector moves in a focal surface, the structure volume of the tracking device can be greatly reduced, and the present invention does not have balance problem.
Description
A kind of translationally tracking solar energy collector, it is a kind of device for converting solar energy, can be used in various industry and the civil solar harvester, as solar water and solar power plant.
The universal utilization of solar energy is that one of important topic that solves is badly in need of in current society.Solar energy is a kind of clean, pollution-free and environment almost do not had a kind of good primary energy of influence, and has and the universal solar energy that utilizes of large tracts of land all is effectively to our survival environment and protection of resources.But in solar energy utilized, the most scabrous had following two problems.One of problem is that the energy-flux density energy that sunshine is with of unit are (in the unit interval by) of sunshine is not high, generally has only about 1 kilowatt every square metre.When directly utilizing transducer to absorb,, just must use large-area inverting element for obtaining bigger power output.If use as heat-absorbing medium transducings such as water, because the inverting element surface itself and the external world produce more thermal loss, so conversion efficiency are not high carrying out heat exchange (convection current and the width of cloth are penetrated) yet, and what obtain is more low-grade heat energy.Directly transform light energy is become electric energy if use as solar cell, then, need large-area solar cell, so the cost of unit of electrical energy output is higher for obtaining big power output.Two of problem is sun positions on high with different constantly variation the in a day.Be to improve the energy-flux density of sunshine, can use various aggregating apparatus (as speculum etc.) that sunshine is concentrated, improve energy-flux density.But because the sun variation of middle position on high must use a cover tracking means to make the output of aggregating apparatus remain at the surface of transducer, present tracking mode is used the rotation tracing more, makes it point to the sun all the time by making the speculum rotation.When though this tracking has guaranteed to make the sun to be in diverse location, sunlight reflected focuses on the energy transducer all the time, but owing to adopt rotating mechanism, when speculum big (thereby the radius of curvature of speculum is also bigger), because of need rotate around the center of curvature, make its structure, volume all very big, the equilibrium problem during rotation also is difficult to resolve determines.
The purpose of invention is a kind of translationally tracking solar energy collector of invention, and it makes the pursuit movement of speculum become rectilinear motion, can reduce the tracking means structural volume greatly, no equilibrium problem.
Accompanying drawing 1 is a structural representation of the present invention.
Accompanying drawing 2 is the light reflection schematic diagram when between angle of incidence of sunlight degree and reflective mirror point to certain angle being arranged.L is the tracking side-play amount of speculum with respect to energy transducer.
Accompanying drawing 3 is for there being a kind of structural representation of a plurality of speculums and a plurality of energy transducers.
Accompanying drawing 4 is the optically focused light path schematic diagrames of a plurality of speculums under the projection of wide-angle sunshine.
Structure of the present invention as shown in Figure 1, it have support 1, speculum 2, energy transducer 3, Mirror motion guide rail 4, tracking drive unit 5, support 1 supporting reflex mirror 2 make its axis for southern and northern To and make the angle of axis and horizontal plane equal to use the ground latitude value, it is characterized in that: the mirror motion guide rail 4 is line slideway, and following the tracks of drive unit 5 is linear drive apparatus.
Operation principle of the present invention is as follows:
Type utilization of the present invention is when the sunshine change in location causes that sunlit angle changes, the characteristic that the focal line of focusing mirror moves in focal plane, adopt the relative position of parallel mobile mirror and energy transducer, the surface that makes the sunshine of reflection shine energy transducer all the time reaches the purpose of tracking.Use the parallel mobile tracking form that rotatablely moves in the past of having replaced, can reduce the structural volume of tracking means greatly, also do not have equilibrium problem.
In inventing type, energy transducer 3 is strips, and is the same with speculum long, and its cross section can be circular, also can be rectangle, and its cross sectional dimensions is 1/20th to 1/5th of speculum 2 opening yardsticks.Energy transducer 3 can be an endothermic tube, wherein can be connected with heat absorbent.Heat absorbent can be water, ammoniacal liquor, alcohol etc., also can directly be connected with heated chemical substance.Energy transducer 3 also can be a solar cell, and sunlight is directly become electric energy.Can also be composite transducer spare, its outer surface posts solar cell, is connected with heat absorbent in it, and solar cell does not have the heat energy that sunshine produced of conversion to be absorbed by heat absorbent.
The present invention can adopt a plurality of speculums 2 and energy transducer 3 shared same mirror motion guide rails 4 and follow the tracks of drive unit 5, as shown in Figure 3.The geomery of its speculum 2 all is the same, and parallel to each other, so their tracking telemechanical is consistent, can be with a cover mirror motion guide rail 4 and a tracking drive unit 5.The method that adopts a plurality of speculums 2 and energy transducer 3 shared cover mirror motion guide rails 4 and follow the tracks of drive unit 5.Can use the less arrangement of mirrors of a plurality of sizes to obtain bigger solar energy collecting area.This not only can reduce the manufacturing difficulty of speculum, and the gauge that can reduce this device and the speculum gross area that reduces when the identical effective sunlight collection area.The more important thing is, when adopting the smaller a plurality of speculum of relative scalar, can reduce the tracking displacement when sun mobile phase co-located.This has not only reduced speculum moving guide rail 4 sizes and structure, has reduced the driving power of following the tracks of drive unit 5, also makes to follow the tracks of to be easy to control.
The present invention when adopting a plurality of speculums 2 and energy transducer 3 this forms, its number be 3,4, tens so that tens shared cover speculum moving guide rails and follow the tracks of drive unit.Its number is more good, but should gather the sunshine area as requested determines, at area hour, because the size of energy transducer 3 is not easy to do too for a short time relatively, thereby number can make energy transducer 3 total area excessive when too much, reduced actual light gathering efficiency, the effect that improves energy-flux density reduces, and has also increased cost.
The present invention is when adopting a plurality of speculums 2 and energy transducer 3 this forms, total distance of its pursuit movement can only equal its speculum 2 width (also being the spacing of two energy transducers 3), when position of sun relatively tilts, speculum 2 gathers the sunshine that reflects to be sent on the adjacent energy transducer 3, as shown in Figure 4.
Speculum guide rail 4 among the present invention can be a rail plate, as the guide rail on the machine tool, can be triangle, trapezoidal or swallow-tail form.Also can be rolling guide, at speculum 2 back sides and guide pass corresponding position scroll wheel is housed, to reduce resistance.Tracking drive unit 5 in the type of the present invention can be by can controlling motor, and decelerator and actuating unit are formed, and actuating unit can be that nut-screw is paid, and also can be that rack-and-pinion is paid.When controllable motor rotated, after the decelerator deceleration, actuating unit became the line tracking motion to it.It is the patent of CN91218541 and CN91209770 that its concrete structure can adopt as the patent No..When the present invention is large-scale plant, follow the tracks of drive unit 5 and also can adopt hydraulic-driven, overlap hydraulic power source and control device and hydraulic cylinder by one and form, so bigger driving moment can be arranged.
Claims (1)
1. translationally tracking solar energy collector, it has support (1), speculum (2), energy transducer (3), mirror motion guide rail (4), follows the tracks of drive unit (5), support (1) supporting reflex mirror (2) makes its axis to be North and South direction and to make axis and the angle of horizontal plane equals to use the ground latitude value, it is characterized in that: mirror motion guide rail (4) is a line slideway, and following the tracks of drive unit (5) is linear drive apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93109064A CN1049278C (en) | 1993-07-24 | 1993-07-24 | Translationally tracking solar energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93109064A CN1049278C (en) | 1993-07-24 | 1993-07-24 | Translationally tracking solar energy collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1098191A CN1098191A (en) | 1995-02-01 |
| CN1049278C true CN1049278C (en) | 2000-02-09 |
Family
ID=4987436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93109064A Expired - Fee Related CN1049278C (en) | 1993-07-24 | 1993-07-24 | Translationally tracking solar energy collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1049278C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594093B (en) * | 2009-06-20 | 2012-03-28 | 谢化允 | Photovoltaic source solar automatic tracker |
| GB201008032D0 (en) * | 2010-05-14 | 2010-06-30 | Dow Corning | Solar reflection apparatus |
| CN103713650A (en) * | 2014-01-02 | 2014-04-09 | 王丽英 | Fixed-point reflective sun tracking system |
-
1993
- 1993-07-24 CN CN93109064A patent/CN1049278C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1098191A (en) | 1995-02-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |