CN1442654A - U shaped curved lens solar energy collection device - Google Patents
U shaped curved lens solar energy collection device Download PDFInfo
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- CN1442654A CN1442654A CN02153081A CN02153081A CN1442654A CN 1442654 A CN1442654 A CN 1442654A CN 02153081 A CN02153081 A CN 02153081A CN 02153081 A CN02153081 A CN 02153081A CN 1442654 A CN1442654 A CN 1442654A
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- mirror
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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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- 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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- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
A solar energy collector with U-shaped curved mirror for durably collecting the high-intensity heat energy or light energy at fixed position without following reflector is disclosed. Its reflecting mirror has a parabolic longitudinal U-shaped cross-section and its concave reflector faces south. It is only needed to periodically regulate is angel.
Description
Technical field the utility model relates to the collection utilization of solar energy, relates in particular to a kind of curved mirror solar collecting device.Specifically, be that a kind of longitudinal cross-section that utilizes is the parabola shaped recessed speculum of curved surface, called after U-shaped curved mirror on a line segment, continues to obtain the integration unit of high strength solar energy with the sunshine reflect focalization at fixing focusing position.
Relevant background technology is present, and the collection utilization of solar energy has dual mode, and a kind of is the direct-injection type collection, and another kind is the collection of focusing mirror formula.
Direct-injection type is gathered, and gathers the solar energy of much areas, must use the collection facility of much areas, and equipment investment is bigger.1, heat collector is as prior solar water heater etc., and the temperature of obtaining is lower, even can not heat water to 100 ℃, more can not produce steam, so value is little, can only be hot-water supply; 2, photoelectric conversion device is as solar panel etc., because light intensity is not high, the electromotive force of generation and the electric current of output are all very little, and cost an arm and a leg, so be not easy widespread usage; 3, ocean temperature differential power also is a kind of mode that solar energy utilizes, and its medium boiling point that is used for the heating power exchange must be very low, and span is big up and down for equipment, the specification requirement height, and investment is many, uses also not extensive.
The focusing mirror formula is gathered solar energy, can gather high-intensity luminous energy and heat energy, can cook as solar cooker, and the tower type solar electricity generation system is utilized the burnt sunshine of speculum clustering, can produce steam and generate electricity.But their all must adopt certain device, make speculum follow the tracks of sun rotation at any time, and complex process, auxiliary equipment is many, investment is big, are difficult to apply.Solar cooker is not promoted in the civil area large tracts of land except using under specific condition.The tower type solar electricity generation system is except being seen in the introduction of newspapers and magazines the domestic example of finding application.
Summary of the invention purpose of the present invention, be to change existing focusing mirror collection solar energy must make speculum follow the tracks of the present situation of sun rotation at any time, make speculum need not follow sun rotation, just can continue to obtain high-intensity solar energy (luminous energy or heat energy) at fixing focusing position from sun to sun.Whole harvester fixed-site only need be adjusted the speculum opening angle up and down, need not complicated corollary equipment, need not follow the tracks of the power set of the sun, is well suited for applying in industrial and agricultural production and civil area.
The present invention is achieved in that making the one side longitudinal cross-section is the parabola shaped recessed speculum of curved surface, the speculum opening is placed towards the due south, adjust mirror angle every morning up and down, make its main shaft plane and solar orbit planes overlapping, like this, sunshine is just assembled on the straight line of an east-west direction before the focusing mirror, and sunshine is from the rotation of east orientation west, focal position displacement from West to East thereupon, front-back direction can not change up and down.Measure concrete focal position of curved mirror and the scope that is subjected to displacement thereof in advance, harvester is installed at the focusing position of measuring; Adjust mirror angle every morning, just can from morning to night continue to obtain high-intensity solar energy (heat energy or luminous energy).The solar collecting device that some are civilian can fixedly mount, also can every month or adjustment primary event of per season mirror angle.
Description of drawings
Fig. 1 is a U-shaped mirror longitudinal cross-section schematic diagram; Wherein:
Straight line m is parabolical main shaft, and some F is a focus.
Fig. 2 focuses on schematic diagram for the U-shaped mirror; Wherein:
1. being the U-shaped mirror, 2. is the main shaft plane M of U-shaped mirror, and line segment FF ' is a focal position.Straight line f is for focusing on the straight line at line segment FF ' place.
Fig. 3 is the swing-around trajectory floor map of the sun; Wherein:
1. being the position of sun in morning, 2. is the position of sun at high noon, 3. is the position of sun in afternoon, 4. is position of the earth, 5. is ground level.
Fig. 4 is that positive sunshine incident period of the day from 11 a.m. to 1 p.m U-shaped mirror focuses on schematic diagram; Wherein:
Line segment FF ' is a focal position.
Fig. 5 is the focal position schematic diagram behind morning, sunshine incident in the afternoon U-shaped mirror; Wherein:
1. be focal position, line segment FF ' is the focal position at high noon, line segment F
1F
1' be the focal position in morning, F
2F
2' be the focal position in afternoon, straight line f is for focusing on the straight line at place, position.
Fig. 6 is a U-shaped mirror solar energy acquisition integration unit schematic diagram; Wherein:
1. being collecting device, can be tabular or tubulose;
2. be at the collecting device end mounted bearing, making the U-shaped mirror can be axle to focus on straight line
Rotation is to adapt to the variation of altitude of the sun;
3. be the geared system of adjusting lower angle on the speculum.
Fig. 7 is the solar collecting device of the auxiliary mirror of band.Wherein:
1. being the U-shaped mirror primary mirror of opening towards the due south, 2. is the auxiliary mirror in east, 3. is the auxiliary mirror in west, 4. for focusing on the harvester at position.
Below in conjunction with accompanying drawing, operation principle of the present invention is described:
As shown in Figure 1, U-shaped mirror longitudinal cross-section schematic diagram is actually a parabolical part.Parabolic focus F is on its main shaft m.
U-shaped mirror as shown in Figure 2, can regard the curved surface (1.) that the parabola lengthwise movement forms among Fig. 1 as, parabolical main shaft m movement therewith has just formed main shaft plane M (2.), the movement locus of focal point F has just formed focusing line segment FF ' line segment FF ' on straight line f.
As shown in Figure 3, be object of reference with the earth (4.), on ground (5.), the sun rotates a circle from the east orientation west every day, has just formed a circle, the plane at this circle place, be exactly the orbit plane of the sun, the angle of solar orbit plane and ground level changes along with the variation of altitude of the sun.Specific to some day, no matter morning (1.), noon (2.), or afternoon (3.), sunray always rotates in this plane.
The U-shaped mirror is placed towards the due south, adjusted angle up and down, make its main shaft plane (M among Fig. 2) overlap (parallel) with the orbit plane of sun rotation; The positive period of the day from 11 a.m. to 1 p.m, behind the sunshine incident U-shaped mirror, as shown in Figure 4, will go up focusing at the focusing position-line segment FF ' of U-shaped mirror.
As shown in Figure 5, morning and afternoon, sunshine meeting oblique incidence U-shaped mirror, but because the main shaft plane of U-shaped mirror overlaps (parallel) with the orbit plane of sun rotation at this moment, sunshine is still parallel with the main shaft plane of U-shaped mirror, according to the reflection of light law, uses the synthetic parallelogram law of resolution of vectors, can extrapolate, the focal position in morning is line segment F
1F
1', the focal position in afternoon is line segment F
2F
2', the same with the focal position (line segment FF ') at high noon, all on straight line (f).Like this, as long as the main shaft plane of U-shaped mirror overlaps with the orbit plane of sun rotation, from morning to night, sunshine will be as the position focusing of Fig. 5 shown in 1..
Focusing principle according to above U-shaped mirror, we place U-shaped mirror opening towards the due south, adjusting lower angle on the U-shaped mirror every day at sunrise, make U-shaped mirror main shaft plane and sun swing-around trajectory planes overlapping, focus on the position at it and settle harvester, just can continue to obtain high-intensity solar energy from sun to sun.Harvester will increase certain-length in the thing both sides of U-shaped mirror, moves from West to East to adapt to the focusing position.
If the U-shaped mirror is fixedly mounted, when altitude of the sun changed with season, the focal position of sunshine can be up and down or front and back disperse, the intensity of focusing weakens to some extent, if and the diameter of collecting device is bigger, still the solar energy that the position obtains higher-strength can focused on.Therefore, the U-shaped mirror solar energy equipment that some are civilian if only for obtaining boiling water or bath hot water, just the U-shaped mirror can be fixedly mounted together with collecting device, also can be designed to every month or adjustment primary event of per season mirror angle.
Utilize the U-shaped lens device to gather solar energy, the size of collecting energy power wavy fluctuations can occur in one day, power is little sooner or later, and noon, power was big, in order to cushion this variation, can increase in primary mirror both sides towards the southeast with towards the auxiliary mirror in southwest towards the due south.Like this, whole harvester presents shaped as frame state as shown in Figure 7.The making of specific embodiment U-shaped mirror solar collecting device is very simple, and the material of employing is obtained easily.Make fixing U-shaped curved surface (parabola shaped or its in connect broken line shape) with fiberglass, metal or plastic plate, on concave surface, lay one deck reflective membrane,, promptly can be made into the recessed speculum of U-shaped curved surface as aluminising mylar etc.; During conditions permit, also can make glass U-shaped mirror.Harvester then can be made tubulose or tabular etc. according to different needs.Focus on the collecting device fixed installation at position, bearing is installed at two ends, the U-shaped mirror can be centered on focus on the axis rotation, and rotation amplitude is between the angle between local winter solstice altitude of the sun and the summer solstice altitude of the sun.
The U-shaped mirror will be installed necessary flushing device, washes in case of necessity, keeps minute surface bright and clean, guarantees higher reflectivity.
Beneficial effect: utilize the U-shaped mirror to gather solar energy, compare with existing various solar energy acquisition modes, have following beneficial effect:
1, can directly continue to obtain Gao Re or high light at fixing focusing position. On the U-shaped mirror The distance of under shed is more big, and the solar energy intensity of gathering is more high.
2, need only every day or be separated by and adjusted the primary event mirror angle in some days, even can fixedly mount speculum, without the settled date device, need not complicated corollary equipment, make solar energy acquisition convenient, utilization rate is higher.
3, the collecting device at focusing position can fixedly mount, and helps building the reflection cluster, realizes the extensive collection utilization of solar energy.
4, U-shaped curved mirror manufacturing mounting process is simple, and overall cost is few, and the completion time of project is short, helps large-scale promotion.
These characteristics has determined to utilize the U-shaped mirror to gather solar energy very wide application:
1, adopts high strength photoelectricity transition material, can under the less situation of investment, realize the high strength solar electrical energy generation, than existing solar cell plate efficiency height, small investment; Focusing on position installation semiconductor thermoelectric transition material, can realize the high strength semiconductor temperature differential generating; Large-scale U-shaped mirror cluster is adopted in the sufficient area of solar irradiation, focuses on position at it and heat-pipe apparatus is installed is collected steam, can realize powerful steam-electric power, than tower type solar electricity generation system simple possible more.
2, industrial and mining enterprises can utilize U-shaped mirror group to set up heating system, also thermal response or photochemically reactive technological process directly can be placed the focusing position of large-scale U-shaped mirror, thereby save the energy, reduce production costs.
3, family utilizes U-shaped curved mirror equipment for collecting solar energy, can realize supplying boiling water, indoor heating etc.; Also can adopt the concentrating solar battery generating, use battery stores electricity energy, realize that family is independently-powered.
4, factory, school, villages and small towns, especially remote village can utilize the U-shaped lens device to realize steam, photoelectricity or semiconductor temperature differential generating, sets up independently electric power system; School and other public places can utilize the U-shaped lens device to realize supplying daytime boiling water, heating etc.
5, land islands and reefs far away and offshore area, can take with U-shaped mirror thermal-arrest, the method for carrying out the heating power exchange at the shallow sea water-cooled, with high boiling medium (such as pure water etc.), realize novel closed cycle ocean temperature differential power, than existing ocean temperature differential power technology investment lack, efficient is high, be convenient to popularize.
6, focusing on the certain daylighting conduction device of position installation, can as required sunlight be transferred to house, mine, tunnel and various underground installations inside, realize the natural lighting on daytime that these are local, save a large amount of energy.
Claims (2)
- Claim 1: a kind of U-shaped curved mirror solar collecting device, it is characterized in that: the longitudinal cross-section of speculum is parabola shaped, be similar in horizontal " U " word, with the speculum opening towards the due south fixed placement, only need adjust the speculum opening angle up and down to suitable location, just can continue to obtain high-intensity solar energy at fixing focusing position from sun to sun; The speculum opening angle can every day or was adjusted once in some days at interval, and the civil solar harvester that has can fixedly mount.
- Claim 2: a kind of U-shaped curved mirror solar collecting device, it is characterized in that: as claim 1 said U-shaped curved mirror both sides, construction opening is towards the auxiliary mirror in the southeast and southwest respectively, gather solar energy at its fixing focusing position, can make the collection power of one day solar energy from morning to night not have big fluctuations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02153081A CN1442654A (en) | 2002-12-01 | 2002-12-01 | U shaped curved lens solar energy collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02153081A CN1442654A (en) | 2002-12-01 | 2002-12-01 | U shaped curved lens solar energy collection device |
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| Publication Number | Publication Date |
|---|---|
| CN1442654A true CN1442654A (en) | 2003-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02153081A Pending CN1442654A (en) | 2002-12-01 | 2002-12-01 | U shaped curved lens solar energy collection device |
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| CN (1) | CN1442654A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351586C (en) * | 2004-03-03 | 2007-11-28 | 陕西科技大学 | Method for arranging glass bar width of parabolic refraction solar light collector |
| CN102980311A (en) * | 2012-12-04 | 2013-03-20 | 天津城市建设学院 | Solar-powered air heat-collecting device |
| CN107404852A (en) * | 2015-01-09 | 2017-11-28 | T·R·C·博伊德 | Illumination for gardening and other application |
| CN114415359A (en) * | 2022-01-19 | 2022-04-29 | 中国人民解放军国防科技大学 | Lighting device based on solar energy convergence power generation |
-
2002
- 2002-12-01 CN CN02153081A patent/CN1442654A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351586C (en) * | 2004-03-03 | 2007-11-28 | 陕西科技大学 | Method for arranging glass bar width of parabolic refraction solar light collector |
| CN102980311A (en) * | 2012-12-04 | 2013-03-20 | 天津城市建设学院 | Solar-powered air heat-collecting device |
| CN107404852A (en) * | 2015-01-09 | 2017-11-28 | T·R·C·博伊德 | Illumination for gardening and other application |
| CN107404852B (en) * | 2015-01-09 | 2020-12-08 | T·R·C·博伊德 | Lighting for horticulture and other applications |
| CN114415359A (en) * | 2022-01-19 | 2022-04-29 | 中国人民解放军国防科技大学 | Lighting device based on solar energy convergence power generation |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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