CN104567028B - Heat-transferring improved heat-storage solar energy heat collector - Google Patents
Heat-transferring improved heat-storage solar energy heat collector Download PDFInfo
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- CN104567028B CN104567028B CN201510022540.4A CN201510022540A CN104567028B CN 104567028 B CN104567028 B CN 104567028B CN 201510022540 A CN201510022540 A CN 201510022540A CN 104567028 B CN104567028 B CN 104567028B
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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
- Y02E10/44—Heat exchange systems
Abstract
The invention discloses a kind of heat-transferring improved heat-storage solar energy heat collector. Comprise cold fluid inlet tube, annular shunting chamber, thermoexcell, heat collector cavity, heat storage, hot fluid outlet, the chamber of confluxing, heat-insulation layer, lens; Heat collector body is provided with heat collector cavity, heat storage, thermoexcell from inside to outside in turn, thermoexcell lower end is connected with annular shunting chamber, annular shunting chamber is connected with cold fluid inlet tube, thermoexcell upper end is connected with the chamber of confluxing, the chamber of confluxing is connected with hot fluid outlet, heat collector cavity accent place is provided with lens, outside cold fluid inlet tube, annular shunting chamber, thermoexcell, heat storage, the chamber of confluxing, is all laid with heat-insulation layer. The present invention is strengthened fin and heat storage body structure is optimized to design by increase, ensureing on the basis of solar thermal collector heat absorption, accumulation of heat, heat-exchange integrated design, simplify the design of pipeline, strengthen the capacity of heat transmission of heat storage, reduce the radial temperature difference of heat storage, improved the reliability of system.
Description
Technical field
The present invention relates to a kind of heat-transferring improved heat-storage solar energy heat collector, belong to solar energy utilization technique neckTerritory.
Background technology
At present, traditional energy reserves reduce day by day, and problem of environmental pollution increases the weight of day by day, and development and utilization solar energy etc. can be againThe raw energy not only can, for human society provides the huge energy, can also be saved conventional fossil fuel, preserve the ecological environment. CauseThis, the development and utilization of solar energy resources has been subject to the attention of countries in the world for a long time, and becomes the current energy development of ChinaImportant directions, but due to series of problems such as discontinuity, unstability and the energy density of the irradiation of solar energy are low, rightThe running of solar energy heat utilization system stability has brought very large challenge. Can be by the unnecessary sun by solar heat-preservation systemCan heat temporarily store, while by the time not having sunshine or sunshine not enough again by this part thermal release out, thereby ensuredSecurity and the stability of whole solar energy heat utilization system.
At present common solar heat-preservation system comprises two kinds of latent heat of phase change accumulation of heat and sensible heat accumulation of heats, wherein changes for first heatHot device, in order to reduce the thermal (temperature difference) stress of this province of heat storage and to improve heat exchange efficiency, arranges at heat storage outer surface merelyHeat exchange pipeline has not met design snowball under many circumstances, tends to require at the inner heat exchange pipeline of installing of heat storage, and this justGreatly increased procedure and the difficulty of heat storage, and pipeline is long, the heat transfer temperature difference of heat exchanger itself also increases, forAlso there is many problems in the maintenance of pipeline.
Therefore, solar energy heat utilization system, optimizing pipeline structure, realizes solar energy heat collector long-term stability, safetyOperation, improving the aspects such as solar energy source utilization rate has the space of further improvement, lifting.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, propose a kind of heat-transferring improved heat-storage solar energy heat collector.
For achieving the above object, the present invention is by the following technical solutions:
Heat-transferring improved heat-storage solar energy heat collector comprise cold fluid inlet tube, annular shunting chamber, thermoexcell,Heat collector cavity, heat storage, hot fluid outlet, the chamber of confluxing, heat-insulation layer, lens;
Heat collector body is provided with heat collector cavity, heat storage, thermoexcell from inside to outside in turn, thermoexcell lower end withAnnular shunting chamber is connected, and annular shunting chamber is connected with cold fluid inlet tube, and thermoexcell upper end is connected with the chamber of confluxing, the chamber of confluxingBe connected with hot fluid outlet, heat collector cavity accent place is provided with lens, cold fluid inlet tube, annular shunting chamber, thermoexcell,Outside heat storage, the chamber of confluxing, be all laid with heat-insulation layer;
Heat storage comprises accumulation of heat body, semicircle pipeline tankage, the first interpolation fin groove, the second internal-rib conduit;
The outside wall surface of accumulation of heat body is evenly offered semicircle pipeline tankage, the center of semicircle pipeline tankage and two semi-circular tubesBetween road tankage, be respectively equipped with the first interpolation fin groove and the second interpolation fin groove;
Thermoexcell comprises light pipe, connection fin plate, the first interpolation fin plate, the second interpolation fin plate;
Light pipe and interpolation fin plate are welded to connect, and the first interpolation fin plate coordinates installation with the first interpolation fin groove, and withSemicircle pipeline tankage fits tightly, and connection fin plate and the second interpolation fin plate are welded to connect, the second interpolation fin plate and secondInterpolation fin groove coordinates to be installed, and between light pipe, is welded to connect respectively with connection fin plate two ends.
Described heat storage adopts graphite or high temperature concrete sensible heat heat-storing material.
The thermal conductivity factor of described connection fin plate, the first interpolation fin plate, the second interpolation fin plate material is higher than accumulation of heatThe thermal conductivity factor of body material.
The angle of gradient at described heat storage top is 30 ° of-60 ° of angles.
The present invention compared with prior art, has following beneficial effect:
(1) the present invention has realized the integrated of solar thermal collection system and hold over system, has simplified the layout of pipelineThe processing structure of mode and heat storage, has reduced the manufacturing cost of system.
(2) the present invention is by adopting interpolation fin and the mode at heat storage surface fluting, then when increasing heat-transfer surfaceThe temperature difference of effectively having improved heat storage distributes.
Brief description of the drawings
Fig. 1 is heat-transferring improved heat-storage solar energy heat collector structural representation;
Fig. 2 is the A-A sectional view of heat-transferring improved heat-storage solar energy heat collector;
Fig. 3 is the thermoexcell structure diagram of heat-transferring improved heat-storage solar energy heat collector;
Fig. 4 is the heat storage body structure sketch of heat-transferring improved heat-storage solar energy heat collector;
In figure: cold fluid inlet tube 1, annular shunting chamber 2, thermoexcell 3, heat collector cavity 4, heat storage 5, hot fluid outletPipe 6, the chamber 7 of confluxing, heat-insulation layer 8, lens 9, thermal-collecting tube 10, connection fin plate 11, the first interpolation fin plate 12, the second interpolation finPlate 13, accumulation of heat body 14, semicircle pipeline tankage 15, the first interpolation fin groove 16, the second internal-rib conduit 17.
Detailed description of the invention
As shown in Figure 1, 2, heat-transferring improved heat-storage solar energy heat collector comprises cold fluid inlet tube 1, annular shuntingChamber 2, thermoexcell 3, heat collector cavity 4, heat storage 5, hot fluid outlet 6, the chamber 7 of confluxing, heat-insulation layer 8, lens 9;
Heat collector body is provided with heat collector cavity 4, heat storage 5, thermoexcell 3 from inside to outside in turn, under thermoexcellEnd is connected with annular shunting chamber 2, and annular shunting chamber is connected with cold fluid inlet tube 1, thermoexcell upper end and chamber 7 phases of confluxingConnect, the chamber of confluxing is connected with hot fluid outlet 6, and heat collector cavity 4 accent places are provided with lens 9, cold fluid inlet tube 1, annular shuntingChamber 2, thermoexcell 3, heat storage 5, the outer heat-insulation layer 8 that is all laid with in the chamber 7 of confluxing;
Heat storage 5 comprises accumulation of heat body 14, semicircle pipeline tankage 15, the first interpolation fin groove 16, the second internal-rib conduit 17;
The outside wall surface of accumulation of heat body 14 is evenly offered semicircle pipeline tankage 15, the center and two and half of semicircle pipeline tankageBetween round pipe tankage, be respectively equipped with the first interpolation fin groove 16 and the second interpolation fin groove 17;
Thermoexcell 3 comprises light pipe 10, connection fin plate 11, the first interpolation fin plate 12, the second interpolation fin plate 13;
Light pipe 10 is welded to connect with interpolation fin plate 12, and the first interpolation fin plate coordinates peace with the first interpolation fin groove 16Dress, and fit tightly with semicircle pipeline tankage 15, connection fin plate 11 and the second interpolation fin plate 13 are welded to connect, the second interpolationFin plate 13 coordinates installation with the second interpolation fin groove 17, between light pipe 10, is welded to connect respectively with connection fin plate 11 two ends.
Described heat storage 5 adopts graphite or high temperature concrete sensible heat heat-storing material.
The thermal conductivity factor of described connection fin plate 11, the first interpolation fin plate 12, the second interpolation fin plate 13 materials is highIn the thermal conductivity factor of heat storage 5 materials.
The angle of gradient at described heat storage 5 tops is 30 ° of-60 ° of angles.
Specific works process of the present invention is as follows:
Solar light irradiation is in focusing mirror in heat collector cavity accent place, and the inwall that is irradiated to heat storage after lens distribute is inhaledHot side, after heat storage heat absorption, temperature raises. Connection fin plate, the first interpolation fin plate, the second interpolation fin plate change as strengtheningHot fin, has increased the heat exchange area between light pipe and heat storage, has strengthened the heat exchange between heat storage and light pipe. And, byAll there is higher thermal conductivity factor in the first interpolation fin plate, the second interpolation fin plate, by the first interpolation fin groove and secondInternal-rib conduit has ensured that heat storage radially obtains heat conduction speed, has reduced the temperature difference of heat storage, has ensured the uniform temperature of heat storage. WhenWhen regenerator temperature is elevated to heat exchange threshold temperature, the fluid in thermoexcell starts to be heated, and the final chamber of confluxing that flows intoMiddle through the outflow of hot fluid outlet, complete the heating process of fluid working substance.
In heating process, in the time that solar irradiation changes, this device, by the variations in temperature of heat storage, relies on accumulation of heatThe heat storage capacity of body, thus the flow of assurance device and outlet parameter is relatively stable. When exceeding, regenerator temperature reaches designWhen the limit, by changing flow to ensure the safety and reliability of heat exchanger.
The present invention, by integrated, integrated design to the heat absorption of solar energy heating chamber, accumulation of heat, heat exchange, makes apparatus structureCompactness, pipeline is simple, has solved well solar heat and has exported unsettled problem, and meanwhile, it is strong that the present invention has introduced finChange heat transfer technology, effectively improved the heat transfer effect of system, shortened the length of heat exchanging pipe, reduced the cost of device,Economic benefits.
Claims (4)
1. a heat-transferring improved heat-storage solar energy heat collector, is characterized in that comprising cold fluid inlet tube (1), annular pointStream chamber (2), thermoexcell (3), heat collector cavity (4), heat storage (5), hot fluid outlet (6), the chamber of confluxing (7), heat-insulation layer(8), lens (9);
Heat collector body is provided with heat collector cavity (4), heat storage (5), thermoexcell (3), thermoexcell from inside to outside in turnLower end is connected with annular shunting chamber (2), and annular shunting chamber is connected with cold fluid inlet tube (1), thermoexcell upper end and confluxingChamber (7) is connected, and the chamber of confluxing is connected with hot fluid outlet (6), and heat collector cavity (4) accent place is provided with lens (9), cold fluid importPipe (1), annular shunting chamber (2), thermoexcell (3), heat storage (5), the chamber of confluxing (7) outer heat-insulation layer (8) that is all laid with;
Heat storage (5) comprises accumulation of heat body (14), semicircle pipeline tankage (15), the first interpolation fin groove (16), the second internal-rib grooveRoad (17);
The outside wall surface of accumulation of heat body (14) is evenly offered semicircle pipeline tankage (15), the center and two and half of semicircle pipeline tankageBetween round pipe tankage, be respectively equipped with the first interpolation fin groove (16) and the second interpolation fin groove (17);
Thermoexcell (3) comprises light pipe (10), connection fin plate (11), the first interpolation fin plate (12), the second interpolation finPlate (13);
Light pipe (10) is welded to connect with the first interpolation fin plate (12), and the first interpolation fin plate and the first interpolation fin groove (16) are joinedClose installation, and fit tightly with semicircle pipeline tankage (15), connection fin plate (11) connects with the second interpolation fin plate (13) weldingConnect, the second interpolation fin plate (13) coordinates installation with the second interpolation fin groove (17), between light pipe (10) respectively with connection finPlate (11) two ends are welded to connect.
2. a kind of heat-transferring improved heat-storage solar energy heat collector according to claim 1, described in it is characterized in thatHeat storage (5) adopts graphite or high temperature concrete sensible heat heat-storing material.
3. a kind of heat-transferring improved heat-storage solar energy heat collector according to claim 1, described in it is characterized in thatThe thermal conductivity factor of connection fin plate (11), the first interpolation fin plate (12), the second interpolation fin plate (13) material is higher than heat storage(5) thermal conductivity factor of material.
4. a kind of heat-transferring improved heat-storage solar energy heat collector according to claim 1, described in it is characterized in thatThe angle of gradient at heat storage (5) top is 30 ° of-60 ° of angles.
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| CN201510022540.4A CN104567028B (en) | 2015-01-17 | 2015-01-17 | Heat-transferring improved heat-storage solar energy heat collector |
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| CN201510022540.4A CN104567028B (en) | 2015-01-17 | 2015-01-17 | Heat-transferring improved heat-storage solar energy heat collector |
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| CN104567028A CN104567028A (en) | 2015-04-29 |
| CN104567028B true CN104567028B (en) | 2016-05-25 |
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| CN105953202B (en) * | 2016-05-16 | 2017-12-12 | 浙江大学 | System and method occurs for a kind of sensible heat heat accumulating type live (open) steam based on regulation of series |
| CN106714519B (en) * | 2017-01-12 | 2018-10-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Airborne LRU liquid coolings source |
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| KR200336272Y1 (en) * | 2003-09-16 | 2003-12-24 | (주)쏠라맥스 | Forced circulated double jacket type water heater having spiral flow path |
| NL1029168C2 (en) * | 2005-06-02 | 2006-12-05 | Econcern B V | Solar collector with integrated heat storage II. |
| CN201028847Y (en) * | 2007-02-28 | 2008-02-27 | 北京春煦京宇太阳能设备有限公司 | Non-deposition solar water heater |
| CN201149453Y (en) * | 2007-11-06 | 2008-11-12 | 江苏大学 | Latent heat thermal storage system for sun house |
| JP2011527740A (en) * | 2008-02-22 | 2011-11-04 | ダウ グローバル テクノロジーズ エルエルシー | Heat storage device |
| CN201327218Y (en) * | 2008-11-20 | 2009-10-14 | 深圳市三诺电子有限公司 | Medium-high temperature heat energy accumulation container |
| CN101782291A (en) * | 2009-06-09 | 2010-07-21 | 上海海事大学 | Adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe |
| US8640689B1 (en) * | 2009-09-29 | 2014-02-04 | Esolar, Inc. | Direct-absorption receiver |
| CN101968328A (en) * | 2010-09-29 | 2011-02-09 | 北京建筑工程学院 | Phase-change energy storage device |
| CN201973915U (en) * | 2011-03-02 | 2011-09-14 | 浙江大学 | U-shaped passage combined heat pipe receiver |
| CN103115443A (en) * | 2013-03-16 | 2013-05-22 | 兰州大成科技股份有限公司 | Single tank phase change thermal storage device for solar energy |
| CN203671959U (en) * | 2013-11-17 | 2014-06-25 | 成都奥能普科技有限公司 | Three-cavity fluid focused solar energy photo-thermal heating, heat transmission and heat storage system |
| CN204478540U (en) * | 2015-01-17 | 2015-07-15 | 浙江大学 | A kind of heat transfer improvement heat-storage solar energy heat collector |
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