CN1789857B - Medium-high temperature heat energy converter for high density solar energy - Google Patents
Medium-high temperature heat energy converter for high density solar energy Download PDFInfo
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- CN1789857B CN1789857B CN200410065815A CN200410065815A CN1789857B CN 1789857 B CN1789857 B CN 1789857B CN 200410065815 A CN200410065815 A CN 200410065815A CN 200410065815 A CN200410065815 A CN 200410065815A CN 1789857 B CN1789857 B CN 1789857B
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- solar
- storage box
- oblate
- helix tube
- heat storage
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
This invention relates to one high intensity solar energy high temperature converter, which is characterized by the following: the turbine uses brass tube to roll into horn cylinder and cylinder biastar and the reflection collection cover covered on the horn cylinder shape and the constant isolation layer; the screw tube outside and bias tar bottom is coated with high solar absorptive ratio and low infrared selective coating layer; the bias tar down open and screw tube upper end are connected with exit hole and heat storage interface connected; the storage interface and down end hole of screwtube cylinder are connected to form recycle loop of solar turbine with industry medium.
Description
Technical field:
The invention belongs to technical field of solar utilization technique, particularly relate to the photothermal converter of the high density solar energy that high temperature heat source is used in being suitable for doing.
Background technology:
In the various energy, the solar energy storage is the abundantest, divides cloth cover the widest, the cleanest, and solar energy is the most reliable energy of human kind sustainable development; But solar energy density is low, and be subjected to day and night, season, geography and climatic influences, the utilization of solar energy is very restricted.At present, solar thermal utilization is general only to be used as low temperature heat energy, as utilizes the solar water heater heat hot water or utilize solar energy drying crops fruit etc., is badly in need of high-temperature solar conversion equipment in the exploitation, so that the thermal source of power or refrigeration to be provided; Flat sun silion cell is mainly adopted in solar energy power generating at present, and efficient is lower, and the electric power simple function only is provided.
Obtain highdensity solar energy and can adopt parabolic type reflect focalization method or lens focusing etc., the existing a lot of patented technologies of the focusing technology of relevant solar energy, for example: number of patent application is 89106297.1 " solar energy generator with condensed light heat collector "; Number of patent application is 96115907.3 " method for electric generation using solar energy ", adopts a plurality of concave mirrors to form the mirror battle arrays, adopts the sunshine of its reflection light pipe that it is transported in the housing of solar boiler after by convex lens focus; Number of patent application be 87106569.X's " solar thermal-arrest device with sub-mirror " propose with a plurality of little mirrors replacement unitary reflector, used a kind of mechanical device that is called universal angle resolver, each divides mirror that a universal angle resolver is all arranged, each universal angle resolver all has three axles: focal axis, tracking axis and mirror axle, realized the tracking control that each little mirror is different by waiting angle transmission mechanism etc.But above-mentioned these patents do not clearly demonstrate the concrete structure of the critical component solar boiler that focuses on back solar energy-heat converter, also are not easy to use.
Solar energy-the heat converter of focus type, critical piece are solar boilers.Publishing the solar boiler of introducing " application of solar energy and theory (Huang Wenxiong work) " book of limited company's publication from book in the volunteer of association industry is campanula halleri Halleri made of copper, in the clutch can water conservancy project matter, the inner face of clock is a heating surface, and the outside of clock is surrounded by thermal insulation layer; This structure of having only one-sided area of illumination to be heated, heating surface area is less, and the area of illumination heat flow rate per unit area is excessive, and higher thermal radiation loss is arranged; In addition, bell copper shell structure also must have thicker wall thickness for will bear high steam, and this has also increased heat transmission resistance.
Summary of the invention:
The present invention proposes high temperature heat converter in a kind of solar energy of high density efficiently, same focusing in the aperture area bigger exposed area is arranged, to overcome the shortcoming that bell solar boiler heat transfer area is less, heat transmission resistance is big and heat loss is big.
High temperature heat converter in the high density solar energy of the present invention, comprise tracking focus control system 10, pylon 3, the heat storage box 7 of mirror condenser 1, solar boiler 11, mirror condenser, solar boiler 11 is contained in Jiao district that is positioned at mirror condenser 1 on the pylon 3; It is characterized in that: described solar boiler 11 by the helix tube reel 2 of the loudspeaker tubular that is rolled into copper tube, helix tube reel top oblate jar 4, be enclosed within the reflecting condensation cover 5 of the bigger loudspeaker tubular of the outer opening of helix tube reel and cover the reflecting condensation cover and insulation layer 6 that oblate jar outside is formed; The bottom surface of the tube outer surface of helix tube reel 2 and oblate jar 4 is coated with the selective coating of high solar radiative absorption rate and low infrared emissivity; Oblate jar 4 the end opening and the upper port of helix tube reel 2 are communicated with, the outlet of oblate tank top is connected with the interface on heat storage box 7 tops, the interface of heat storage box 7 bottoms is communicated with the lower port of helix tube reel 2, forms the closed circuit of solar boiler, is filled with working-medium water in the loop.
Heat storage box 7 is built-in with Heat supply and heat exchange device 9, and the Heat supply and heat exchange device is connected with load circuit.
Can be with a plurality of solar boiler polyphones or a shared heat storage box in parallel, the outlet of the previous oblate tank top of solar boiler is communicated with the lower port of next solar boiler helix tube reel during polyphone, the outlet of last oblate tank top of solar boiler is connected with the interface on heat storage box top, the interface of heat storage box bottom is communicated with the lower port of the most previous helix tube reel, forms the polyphone closed circuit of solar boiler.
When heat storage box being placed the below of solar boiler helix tube reel, be provided with circulating pump 8 in the water-flow circuit of solar boiler; When heat storage box is placed the top of solar boiler, can save circulating pump.
The fluid working substance that fills in the closed circuit of described solar boiler adopts water usually, also can adopt other fluid working substances, as oil.
It is to be used for absorbing the heat exchanger that is become high temperature heat by the direct sunlight of reflecting condensation mirroring that the present invention adopts helix tube reel 2 and oblate jar 4, because the present invention adopts the helix tube reel of loudspeaker tubular, clock inner face than the bell solar boiler in the prior art has bigger heat transfer area, and its awl tube medial surface can absorb the solar radiation of focusing more equably; And pipe has good high voltage performance, and when bearing same high steam, the wall in the comparable bell chamber of wall of pipe is thin, therefore can reduce thermal resistance, improves heat transfer property.
The present invention has adopted the bigger reflecting condensation cover 6 of opening, can reflect lateral surface to the solar radiation of focal beam spot outer ring to the helix tube reel, the heat transfer area that has increased solar boiler is more than 1 times, and the temperature difference of copper pipe surface and tube fluid will reduce 1 times under equal radiation condition; Copper pipe is not subjected to the area of photograph to be equivalent to fin in addition, has strengthened heat-transfer effect again; The augmentation of heat transfer result makes and is looked after surface temperature and reduce, and radiation and convection losses reduce; External snoot can reduce the reflected radiation of area of illumination, further reduces radiation loss; Big slightly focal area has alleviated the focusing ratio of primary event focusing surface.
The tube outer surface of helix tube reel is coated with the solar radiation selective coating of black nickel class, has high absorptivity of sunshine and low infrared emittance, can reduce reflection and infrared radiation loss.
Heat storage box 7 is set is in order to overcome the influence of solar radiation fluctuation, make heat supply more stable, it is stable to be beneficial to follow-up steam turbine or Absorption Refrigerator.
If adopt a plurality of solar boiler polyphones to use, can obtain high temperature; Adopt the use in parallel of a plurality of solar boilers, can obtain high-power heat.
7 Heat supply and heat exchange device 9 can be given fluid working substance (as water vapour) in the load circuit being stored in exchange heat in the heat storage box in the heat storage box.
Water storage heat-radiation loop by water circulating pump, storage tank, radiator are formed can be dispersed into the heat that cooler absorbs in the air, makes solar panel electricity generation system energy operate as normal.
Enough focusing is being arranged than under the situation, high temperature heat converter in the high density solar energy of the present invention, the solar boiler of its helix tube roll type can provide 150～180 ℃ in 5～10 atmospheric pressure according to needs, or more high pressure and temperature high-temperature water or steam, in order to promote the lithium-bromide solution or the ammonia spirit of steam turbine generating or heating Absorption Refrigerator, realize the concentrated regeneration of lithium-bromide solution or ammonia spirit.
Description of drawings:
Fig. 1 is a high temperature heat converter and utilize system schematic in the high density solar energy of the present invention.
The specific embodiment: further specify the specific embodiment of the present invention below in conjunction with accompanying drawing.
Accompanying drawing 1 is a moderate-high temperature heat utilization systems schematic diagram in the structural representation of high temperature heat converter in the high density solar energy of present embodiment and the applied solar energy.System mainly includes: mirror condenser 1, and solar boiler 11, the tracking focus control system 10 of mirror condenser, pylon 3 etc., solar boiler 11 is contained in Jiao district that is positioned at mirror condenser on the pylon 3; Described solar boiler 11 is in frame of broken lines, it is helix tube reel 2 by the loudspeaker tubular that is rolled into copper tube, the oblate jar 4 on reel top, be enclosed within the reflecting condensation cover 5 of the bigger loudspeaker tubular of the outer opening of reel, and cover reflecting condensation cover and oblate jar of outside insulation layer 6 composition; The tube outer surface of helix tube reel and oblate jar bottom surface are coated with the solar radiation selective coating as plating and black nickel in the solar water heater vacuum-tube; The upper port of oblate jar and helix tube reel is communicated with, and oblate jar top has outlet to be connected with the last interface of heat storage box 7, and the lower interface of heat storage box is communicated with the lower port of helix tube reel, forms the closed circuit of solar boiler, is filled with working-medium water in the loop.
7 can be placed with Heat supply and heat exchange device 9 in the heat storage box, and the Heat supply and heat exchange device is connected with load circuit, and the working medium in the load circuit is water and steam.
When heat storage box is positioned at the below of solar boiler helix tube reel, be provided with circulating pump 8 in the water-flow circuit of solar boiler, when heat storage box is positioned at the top of solar boiler, can be without circulating pump.
In the system of present embodiment, two solar boilers shared heat storage box of contacting, the outlet of the previous oblate tank top of solar boiler is communicated with the lower port of next solar boiler helix tube reel during polyphone, the outlet of last oblate tank top of solar boiler is connected with the interface on heat storage box top, the interface of heat storage box bottom is communicated with the lower port of the most previous helix tube reel, forms the polyphone closed circuit of solar boiler.
The solar reflector of present embodiment can adopt existing patented technology.
Utilize high temperature heat converter in the high density solar energy of present embodiment, enough focusing is being arranged than under the situation, the solar boiler of helix tube roll type can provide 150～180 ℃ in 5～10 atmospheric pressure according to needs, or more high pressure and temperature high-temperature water or steam, in order to promote the lithium-bromide solution or the ammonia spirit of steam turbine generating or heating Absorption Refrigerator, realize the concentrated regeneration of lithium-bromide solution or ammonia spirit.
Claims (3)
1. high temperature heat converter in the high density solar energy comprises tracking focus control system, pylon, the heat storage box of mirror condenser, solar boiler, mirror condenser, and solar boiler is contained in Jiao district that is positioned at mirror condenser on the pylon; It is characterized in that: described solar boiler by the helix tube reel of the loudspeaker tubular that is rolled into copper tube, helix tube reel top oblate jar, be enclosed within the reflecting condensation cover of the bigger loudspeaker tubular of the outer opening of helix tube reel and cover the reflecting condensation cover and insulation layer that oblate jar outside is formed; The bottom surface of the tube outer surface of helix tube reel and oblate jar is coated with the selective coating of high solar radiative absorption rate and low infrared emissivity; Oblate jar the end opening and the upper port of helix tube reel are communicated with, the outlet of oblate tank top is connected with the interface on heat storage box top, the interface of heat storage box bottom is communicated with the lower port of helix tube reel, forms the closed circuit of solar boiler, is filled with working-medium water in the loop.
2. high temperature heat converter in the high density solar energy as claimed in claim 1, be characterised in that: with a plurality of solar boiler polyphones or a shared heat storage box in parallel, the outlet of the previous oblate tank top of solar boiler is communicated with the lower port of next solar boiler helix tube reel during polyphone, the outlet of last oblate tank top of solar boiler is connected with the interface on heat storage box top, the interface of heat storage box bottom is communicated with the lower port of the most previous helix tube reel, forms the polyphone closed circuit of solar boiler.
3. high temperature heat converter in the high density solar energy as claimed in claim 1 is characterised in that: be placed with the Heat supply and heat exchange device in the heat storage box, the Heat supply and heat exchange device is connected with load circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410065815A CN1789857B (en) | 2004-12-16 | 2004-12-16 | Medium-high temperature heat energy converter for high density solar energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410065815A CN1789857B (en) | 2004-12-16 | 2004-12-16 | Medium-high temperature heat energy converter for high density solar energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1789857A CN1789857A (en) | 2006-06-21 |
| CN1789857B true CN1789857B (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410065815A Expired - Fee Related CN1789857B (en) | 2004-12-16 | 2004-12-16 | Medium-high temperature heat energy converter for high density solar energy |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011092702A2 (en) * | 2010-01-30 | 2011-08-04 | Heliofocus Ltd. | Tubular solar receivers and systems using the same |
| CN101806496B (en) * | 2010-03-17 | 2011-08-31 | 孟扬 | Production device of full-automatic solar water heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998205A (en) * | 1975-04-01 | 1976-12-21 | Scragg Robert L | Solar reactor steam generator method and apparatus |
| CN2119615U (en) * | 1992-05-13 | 1992-10-21 | 皇品工业有限公司 | Dish solar heater |
| EP0552732A1 (en) * | 1992-01-23 | 1993-07-28 | Yeda Research And Development Co. Ltd. | A central solar receiver |
| CN1361396A (en) * | 2000-12-29 | 2002-07-31 | 耶达研究与开发有限公司 | Central solar energy acceptor |
| US20040099261A1 (en) * | 2002-11-22 | 2004-05-27 | Litwin Robert Zachary | Expansion bellows for use in solar molten salt piping and valves |
| CN2767909Y (en) * | 2004-12-16 | 2006-03-29 | 中国科学技术大学 | Medium-high temperature heat energy convertor for high density solar energy |
-
2004
- 2004-12-16 CN CN200410065815A patent/CN1789857B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998205A (en) * | 1975-04-01 | 1976-12-21 | Scragg Robert L | Solar reactor steam generator method and apparatus |
| EP0552732A1 (en) * | 1992-01-23 | 1993-07-28 | Yeda Research And Development Co. Ltd. | A central solar receiver |
| CN2119615U (en) * | 1992-05-13 | 1992-10-21 | 皇品工业有限公司 | Dish solar heater |
| CN1361396A (en) * | 2000-12-29 | 2002-07-31 | 耶达研究与开发有限公司 | Central solar energy acceptor |
| US20040099261A1 (en) * | 2002-11-22 | 2004-05-27 | Litwin Robert Zachary | Expansion bellows for use in solar molten salt piping and valves |
| CN2767909Y (en) * | 2004-12-16 | 2006-03-29 | 中国科学技术大学 | Medium-high temperature heat energy convertor for high density solar energy |
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| Publication number | Publication date |
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| CN1789857A (en) | 2006-06-21 |
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Granted publication date: 20100526 Termination date: 20101216 |