CN102042184A - Solar energy light converging system - Google Patents
Solar energy light converging system Download PDFInfo
- Publication number
- CN102042184A CN102042184A CN2009102072107A CN200910207210A CN102042184A CN 102042184 A CN102042184 A CN 102042184A CN 2009102072107 A CN2009102072107 A CN 2009102072107A CN 200910207210 A CN200910207210 A CN 200910207210A CN 102042184 A CN102042184 A CN 102042184A
- Authority
- CN
- China
- Prior art keywords
- light
- summit
- dish
- reflection
- solar energy
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to a solar energy light converging system by which light is converged twice. A parabolic reflection disk converges incident sunlights to a parabolic convex reflection mirror arranged below the focus of the reflection disk to perform the first convergence. The parabolic convex reflection mirror again reflects the converged lights to the surface of a light receiving apparatus arranged at the summit of the reflection disk to perform the second convergence. The system provided by the present invention overcomes the problem with the prior art wherein the light receiving apparatus or electricity generating equipment is arranged at the focus of the parabolic disk by arranging the light receiving apparatus at the summit of the reflection disk, so as to realize the separation of the light receiving apparatus and the rotating reflection disk. The split and independent structure simplifies the structure of the system, lowers investment, and reduces the weight of the reflection disk as well as energy consumption during operation. Center of gravity is lowered to make the apparatus more wind-resistant and easy to maintain. The design of twice light convergence raises light convergence ratio so that the temperature of light spot converged at the summit can be up to thousands of degrees Celsius. The light receiving apparatus arranged at the summit is not displaced and all pipelines connected with the light receiving apparatus need not be moved so that the light receiving apparatus can endure high temperature and high pressure, heat loss can be reduced, light-heat transformation rate can be increased to realize highly efficient light-heat transformation.
Description
Technical field
The present invention relates to a kind of solar energy receiving equipment, particularly solar energy collecting system.
Background technique
Photothermal power generation is to utilize heat collector to convert solar radiant energy to heat energy and generate electricity by thermodynamic cycle process, and at present, the photothermal power generation technology roughly has three classes: groove type line-focusing system, tower system and dish formula system.The groove type line-focusing system utilizes parabolic cylinder slot type reflector that sunlight is focused on the receiver of tubulose, and with the heating of intraductal heat transfer working medium, produces steam in heat exchanger, promotes conventional steam turbine power generation.The basic pattern of tower-type solar thermal power generating system is the heliostat that utilizes one group of independently tracked sun, solar ray collecting to is fixed on the receiver of top of tower, in order to produce high temperature.Dish formula system is that parabolic mirror/Stirling system is made up of the parabolic mirror that many mirrors form, receiver is on paraboloidal focus, heat-transfer working medium in the receiver is heated to about 750 ℃, driving generator generates electricity, disclosing a kind of application number as Chinese invention patent is 200710043608.2, name is called spherical mirror combination type concentration power generation apparatus, it is to receive sunlight by the condenser that a plurality of spherical reflectors constitute, then the hot spot that converges on each reflector is reflexed on the receiver that is arranged on the focus place, improve light concentrating times with this.
The deficiency that above-mentioned solar light-heat power-generation system exists is: the key problem in technology of groove type line-focusing system is the groove type line-focusing solar vacuum thermal-arrest pipe, and domestic vacuum thermal-arrest pipe is also under test.Groove type line-focusing optically focused is than low, and energy relies on pipeline and pump in centralized procedure, and pipe-line system ingress of air area is big, and heat and drag losses are all bigger, has reduced the net power output and the efficient of system.The construction investment of tower system is big, calculates the control system of locating reflector with software and large scale computer, and the operation power consumption is big, and photo-thermal conversion efficiency is low.Though dish formula system optical efficiency height, reach 29%, but because of receiver (being generally generator) all is provided with the focus place of dish, the center of gravity height, wind resistance power is poor; When dish body sun-tracing turned round, receiver was along with moving, and coupled pipeline also moves thereupon, and driving force is big; Parts such as flexible pipe, slip-knot use under high temperature and high pressure environment for a long time, and working life is short, and maintenance workload is big; System is huge, the cost of investment height, and maintenance difficulties is big.
Summary of the invention
The purpose of this method is to provide a kind of optically focused than high, and light scatters and disappears few, the solar energy collecting system that receiver separates with the dish body.
Technological scheme of the present invention is: a kind of solar energy collecting system, comprise parabola reflection dish, parabolic convex surface reflector, optical pickup apparatus, sunlight automatic tracking device, it is characterized in that being provided with twice light and converge, receive at the place, summit of parabola reflection dish and utilize.Parabola reflection dish converges to the sunlight of incident on the parabolic convex surface reflector that is positioned at before parabola reflects the dish focus, form and once converge, the parabolic convex surface reflector will converge light and reflex to once more on the optical pickup apparatus that is positioned at place, parabola reflection dish summit, form secondary and converge.
The focus of described parabolic convex surface reflector is higher than the focus of parabola reflection dish, reflects to form the reflection ray that secondary converges on the parabolic convex surface reflector once more.
Branch body structure for not linking mutually between parabola reflection dish and the optical pickup apparatus.
Sunlight automatic tracking device comprises pillar rotating machinery and elevation angle regulating mechanism, and the summit of the steering shaft of elevation angle regulating mechanism and parabola reflection dish point-blank.
The light receiving surface of optical pickup apparatus is slightly larger than the area that secondary converges hot spot.
Solar energy collecting system provided by the invention converges to the sunlight of direct projection on the parabolic convex surface mirror of small size by parabola reflection dish, realizes that once light converges.By the parabolic convex surface mirror sunlight that converges is reflexed to place, parabola reflection dish summit once more again and form hot spot, realize that secondary converges.Optical pickup apparatus obtains high temperature light and can directly utilize, and realizes the conversion of heat energy to electric energy by optical pickup apparatus, also the light of a plurality of smooth collecting systems can be converged once more, focuses on the thermal conversion equipment.The parabolic convex surface reflector overlaps with the focus of parabola reflection dish in theory, will obtain straight reflection ray, but in actual production and installation and equipment tracking sun operation process, can there be error, be difficult to obtain straight secondary reflection light, so the present invention moves up the parabolic convex surface reflector, make the focus of parabolic convex surface reflector be higher than the focus that parabola reflects dish, obtain the reflection ray that secondary converges, improved the optically focused ratio, reduced light and scatter and disappear.Simultaneously, determine the spot size that secondary converges by the distance of adjusting parabolic convex surface reflector and parabola reflection dish focus.The light receiving surface of optical pickup apparatus is slightly larger than the area of hot spot, can collect the partial reflection light that departs from, and eliminates reflection and follows the tracks of the error that sun running produces, and system's light concentrating times can reach more than 400 times.
Characteristics of the present invention are: overcome in the prior art and optical pickup apparatus to be placed in the problem that bring parabolic dish focal position, employing is placed in optical pickup apparatus at the place, summit of parabola reflection dish, it is disconnected from each other that the parabola of realizing optical pickup apparatus and rotation reflects dish, and the split independent structures makes the simple in structure of system, cost of investment is low, the weight saving of parabola reflection dish, the operation power consumption is low, and center of gravity reduces, wind loading rating strengthens, and is convenient to safeguard.Design twice light and converge, improved the optically focused ratio, the hot spot temperature that converges to the place, summit is up to thousands of degree.The optical pickup apparatus that is placed in the place, summit is unshift, and all pipelines that link to each other with optical pickup apparatus need not move, and make optical pickup apparatus can carry High Temperature High Pressure, reduces heat loss, improves the photo-thermal conversion ratio, has realized the conversion of high efficiency photo-thermal.Independently optical pickup apparatus is easy to optimal design, can reduce heat loss to greatest extent.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The invention will be further described below in conjunction with accompanying drawing for specific embodiments:
In Fig. 1, the solar energy collecting system is mainly by parabola reflection dish 1, parabolic convex surface reflector 2, optical pickup apparatus 3, sunlight automatic tracking device is formed, below the focus of parabola reflection dish, be provided with the parabolic convex surface reflector that is connected as a single entity with it, the focus of parabolic convex surface reflector is higher than the focus of parabola reflection dish, optical pickup apparatus is arranged on the summit opening of parabola reflection dish, optical pickup apparatus and dish body are for dividing body structure, be fixedly installed on the column 4, like this, the dish body is followed the tracks of solar motion under the driving of sunlight automatic tracking device, it is motionless that optical pickup apparatus is in the place, summit all the time.By below the focus of parabola reflection dish, the parabolic convex surface reflector being set, at the place, summit of parabola reflection dish optical pickup apparatus is set, realized that twice light converges.In order to guarantee that parabolic convex surface mirror reflects light converges on the light receiving surface of optical pickup apparatus, by adjusting the distance of parabolic convex surface reflector focal point and parabola reflection dish focus, formation light converges, simultaneously the area of the area of the light receiving surface hot spot that should form greater than secondary reflection in design.
The dish surface and the parabolic convex surface mirror surface of parabola reflection dish adopt the high aluminum reflector face of reflectivity in the present embodiment.Sunlight automatic tracking device control dish body moves with running track from sun, it comprises by the pillar rotating machinery 5,6 and the elevation angle regulating mechanism of computer control and forming, the summit of the steering shaft 7 of elevation angle regulating mechanism and parabola reflection dish point-blank, when the dish body elevation angle changed, the hot spot that secondary converges was incident upon the place, summit all the time.
Optical pickup apparatus can be thermal recovery storage or light transmission, and light transmission can use photoconductive tube, and the light that a plurality of solar energy collecting systems is converged by photoconductive tube converges concentrating once more.Other structure of said apparatus is prior art, and numerous embodiments can be arranged, and therefore repeats no more.
Claims (6)
1. solar energy collecting system, comprise parabola reflection dish, parabolic convex surface reflector, optical pickup apparatus, sunlight automatic tracking device, it is characterized in that being provided with twice light converges, place, summit at parabola reflection dish receives utilization, parabola reflection dish converges to the sunlight of incident on the parabolic convex surface reflector of reflection dish focus below, form and once converge, the parabolic convex surface reflector will converge light and reflex to the optical pickup apparatus surface that is positioned at place, parabola reflection dish summit, form secondary and converge.
2. solar energy collecting system according to claim 1 is characterized in that the focus of described parabolic convex surface reflector is higher than the focus of parabola reflection dish, reflects to form the reflection ray that secondary converges once more on the parabolic convex surface reflector.
3. solar energy collecting system according to claim 1 is characterized in that optical pickup apparatus is arranged on place, parabola reflection dish summit.
4. solar energy collecting system according to claim 1 is characterized in that the branch body structure for not linking mutually between parabola reflection dish and the optical pickup apparatus.
5. solar energy collecting system according to claim 1 is characterized in that sunlight automatic tracking device comprises pillar rotating machinery and elevation angle regulating mechanism, and the summit of the steering shaft of elevation angle regulating mechanism and parabola dish reflecting means point-blank.
6. solar energy collecting system according to claim 1 is characterized in that the light receiving surface of optical pickup apparatus is slightly larger than the area that secondary converges hot spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102072107A CN102042184A (en) | 2009-10-12 | 2009-10-12 | Solar energy light converging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102072107A CN102042184A (en) | 2009-10-12 | 2009-10-12 | Solar energy light converging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102042184A true CN102042184A (en) | 2011-05-04 |
Family
ID=43908627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102072107A Pending CN102042184A (en) | 2009-10-12 | 2009-10-12 | Solar energy light converging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102042184A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966498A (en) * | 2011-09-02 | 2013-03-13 | 沈兴财 | Solar thermal power generation equipment and solar power generation method thereof |
| CN104895750A (en) * | 2014-03-03 | 2015-09-09 | 聂再安 | Pulse-water-supply external heating type solar engine |
| CN109799211A (en) * | 2019-03-12 | 2019-05-24 | 长春理工大学 | Drunk driving device for fast detecting and method based on dual-wavelength laser remote sensing |
| CN112436794A (en) * | 2020-11-27 | 2021-03-02 | 北京航空航天大学杭州创新研究院 | Fixed solar, radio and radio frequency convergence system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010104037A (en) * | 2000-05-12 | 2001-11-24 | 황우성 | Ultra-thin, High Concentration Light Energy Concentrator |
| CN101098112A (en) * | 2006-06-29 | 2008-01-02 | 中国科学技术大学 | Self-radiation solar energy accumulation type photovoltaic generator |
| US7339739B1 (en) * | 2007-03-30 | 2008-03-04 | Kinney Laurence F | Active daylighting and active solar heating system and method |
| CN101852499A (en) * | 2009-04-01 | 2010-10-06 | 张�杰 | Disc type focusing device capable of adjusting focusing ratio |
-
2009
- 2009-10-12 CN CN2009102072107A patent/CN102042184A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010104037A (en) * | 2000-05-12 | 2001-11-24 | 황우성 | Ultra-thin, High Concentration Light Energy Concentrator |
| CN101098112A (en) * | 2006-06-29 | 2008-01-02 | 中国科学技术大学 | Self-radiation solar energy accumulation type photovoltaic generator |
| US7339739B1 (en) * | 2007-03-30 | 2008-03-04 | Kinney Laurence F | Active daylighting and active solar heating system and method |
| CN101852499A (en) * | 2009-04-01 | 2010-10-06 | 张�杰 | Disc type focusing device capable of adjusting focusing ratio |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966498A (en) * | 2011-09-02 | 2013-03-13 | 沈兴财 | Solar thermal power generation equipment and solar power generation method thereof |
| CN102966498B (en) * | 2011-09-02 | 2017-04-12 | 温州大学 | Solar thermal power generation equipment and solar power generation method thereof |
| CN104895750A (en) * | 2014-03-03 | 2015-09-09 | 聂再安 | Pulse-water-supply external heating type solar engine |
| CN104895750B (en) * | 2014-03-03 | 2018-01-30 | 聂再安 | Pulse water supply external-heat solar engine |
| CN109799211A (en) * | 2019-03-12 | 2019-05-24 | 长春理工大学 | Drunk driving device for fast detecting and method based on dual-wavelength laser remote sensing |
| CN112436794A (en) * | 2020-11-27 | 2021-03-02 | 北京航空航天大学杭州创新研究院 | Fixed solar, radio and radio frequency convergence system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101806502B (en) | Solar energy collecting system of heliostat | |
| CN100370194C (en) | Solar collecting and utilizing device | |
| CN101825072A (en) | Trough-dish combined solar thermal power generation system with fixed focus | |
| CN102103258B (en) | Dish condensation-based solar energy secondary condensation frequency division method and device | |
| CN102606430B (en) | Separately running disc-type solar concentrated power generating system | |
| CN103199743A (en) | Controllable double-state light-reflection light-gathering solar heat collection generating set | |
| KR100935921B1 (en) | Sunlight collection solar concentrator | |
| CN102721195B (en) | Solar condensation and tracking array horizontal directional collection system | |
| CN102072567A (en) | Two-mirror type solar collecting device and system | |
| CN105042891A (en) | Disk type solar heat collection utilization system | |
| CN204610160U (en) | A kind of convergent lens power generation system | |
| CN102042184A (en) | Solar energy light converging system | |
| CN201687674U (en) | Focus-fixed trough-disc combination type solar thermal power generation device | |
| CN114094915B (en) | Energy storage type high-temperature photovoltaic and photo-thermal integrated power generation system and method | |
| CN102032689B (en) | Novel disc-type solar-powered heat collecting device and system | |
| CN201479052U (en) | Photothermal and photoelectricity combined generating device for tracking concentrating solar energy | |
| CN202083827U (en) | Disc type condensation based solar energy secondary condensation frequency division apparatus | |
| CN201954774U (en) | Twice-reflection fixed-point solar energy collecting device and system | |
| CN101169286A (en) | Reflection type straightforward focusing high temperature solar energy heat collector | |
| CN101929744A (en) | Tower type solar concentrating system | |
| CN202673593U (en) | Trough and Fresnel solar heat hybrid power generation system | |
| CN117249593A (en) | Novel solar photo-thermal heat collection system | |
| CN102162684A (en) | Solar energy trough-type light-gathering device for fixing focus lines | |
| CN201740267U (en) | Wire tower-type solar energy light-gathering heat collecting system | |
| CN201926145U (en) | Novel disc-type solar energy fixed-point energy-collecting device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Cai Xueqing Document name: Notification of Publication and of Entering the Substantive Examination Stage of the Application for Invention |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |