CN102913405A - Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat - Google Patents
Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat Download PDFInfo
- Publication number
- CN102913405A CN102913405A CN2012104180998A CN201210418099A CN102913405A CN 102913405 A CN102913405 A CN 102913405A CN 2012104180998 A CN2012104180998 A CN 2012104180998A CN 201210418099 A CN201210418099 A CN 201210418099A CN 102913405 A CN102913405 A CN 102913405A
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- drift sand
- sand
- drift
- steam generator
- heat accumulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
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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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- Life Sciences & Earth Sciences (AREA)
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses an integrated tower solar thermal power generation unit employing quicksand to store and transfer heat, and a tower solar thermal power generation unit built by 'quicksand' instead of conduction oil, fused salt or gas and the like to transfer and store heat. The device adopts fluid characteristics of the 'quicksand', and has the characteristics of thermostability, zero pressure, small thermal resistance and low cost of the 'quicksand'; and superheated steam is generated by sensibile heat and high-temperature air carried by the quicksand when flowing through a vapor generator to push a steam turbine generator to generate electricity, therefore, the construction cost of a tower solar thermal power generation unit is reduced by integral design, and a technological base is established for final implementation of parity power generation. The device belongs to the technical field of solar thermal electric power generation.
Description
Technical field
The present invention relates to a kind of employing " drift sand " and substitute the tower type solar energy thermal power generation device that the heat transfer heat accumulation working medium such as conduction oil, fused salt or gas are set up.This device takes full advantage of the fluid characteristics of " drift sand ", take into account that " drift sand " have high temperature resistant, without pressure, thermal resistance is little and cost is low characteristics, reduce tower type solar energy thermal power generation device construction cost by integrated design, for technical foundation is established in the generating of final realization par.This device belongs to the solar energy thermal-power-generating technical field.
Background technique
The solar energy thermal-power-generating technology mainly contains four kinds, using at present maximum is the trough type solar power generation technology, but other technologies such as tower, linear focusing Fresnel and utilize the Stirling-electric hybrid generating and adopt the hot generation technology of dish formula that high-temperature gas conducts heat also to obtain very much progress.Particularly along with the successful generating of Spain Gemasolar tower-type thermal power station, the tower type thermal generation technology has had unprecedented development.At present mainly be distributed in the U.S. in the large-scale tower power station of building, such as the Ivanpah power station of BrightSource energy company construction and the Crescent Dunes solar heat power station of SolarReserve heliotechnics company construction.Main live steam generating (DSG) and two kinds of technology of Molten Salt Heat Transfer heat accumulation generating used in these tower type solar energy thermal power generation stations, heat-storing method has all been selected the fused salt heat accumulation.Because the crystallization point of fused salt is higher, solidifies cause damage of equipment for preventing fused salt, must be equipped with the auxiliary heating system such as rock gas reducing system's operation risk, thereby causes construction cost high.For overcoming the defective of fused salt, U.S. renewable energy sources laboratory (NREL) takes the lead in proposing adopting in the tower type solar energy thermal power generation station solid particle to substitute fused salt, in their patent US8109265B1, imagination is utilized then indirect heating air of the direct heat solid particle of solar energy, recycling high temperature air heated fluidized bed boiler produces superheated vapor, promotes the generating of turbine steam generator.From these imaginations, be not difficult to find out, the method of the solid particle that directly is scattered by the solar radiation heating is in fact very unrealistic, particularly the window design of tower receiver is very little, it is very large that light is converged to enough little its technical difficulty, again owing to the intrinsic thermal loss of receiver opening itself is just very large, if become high temperature air can only aggravate thermal loss by heat solid particle indirect conversion, therefore adopt these method wishs to realize that design object will be very difficult.
Summary of the invention
Technical problem to be solved by this invention is to adopt drift sand to set up integrated tower solar energy thermal-power-generating device as the heat accumulation heat-transfer working medium, technical measures has three, the one, utilize solar energy tubular type receiver directly to heat drift sand, by heat accumulation heat-transfer working mediums such as the alternative conduction oil of the flow characteristic of drift sand, fused salts; The 2nd, in a relatively airtight space, utilize the direct heat accumulation of drift sand, reduce as far as possible system's thermal loss and reduce fabricating cost; The 3rd, sensible heat and the high temperature air self-contained by drift sand generate the generating of superheated vapor promotion steam turbin generator when flowing through steam generator, particularly select many kinds of pan furnace grate tube mode to can further improve the thermal conversion efficiency of steam generator.
The alleged problem of the present invention is solved by following technological scheme:
The integrated tower solar energy thermal-power-generating device that described employing drift sand heat accumulation conducts heat comprises that heliostat light-condensing array, solar energy receive tower, solar receiver, drift sand, drift sand heat accumulation chamber, steam generator, water separator, sand storage chamber, drift sand lifting device, drift sand fluid director, water pump, sink, turbine steam electricity generating device, is characterized in that: drift sand fluid director, solar receiver, heat accumulation chamber, steam generator, sand storage chamber, drift sand lifting device are arranged at solar energy and receive in the Tata body; Solar receiver is positioned at solar energy and receives top of tower, and solar receiver pipeline upper end connects the drift sand fluid director, and the lower end connects drift sand heat accumulation chamber; Drift sand enters drift sand heat accumulation chamber through solar receiver heating is laggard, and lower end, drift sand heat accumulation chamber connects steam generator, and drift sand enters sand storage chamber through steam generator; Sand storage chamber arranges the drift sand lifting device; The drift sand lifting device rises to the drift sand fluid director that solar energy receives top of tower with drift sand, enters solar receiver through the drift sand fluid director; The heliostat light-condensing array receives tower around solar energy and arranges; Steam generator is imported and exported and is connected respectively turbine steam electricity generating device and water pump and sink.
Described solar receiver is by high temperature resistant, the anti abrasive high duty metal pipe that has applied the thermal absorption coating, or stoneware pipe, or the high-boron-silicon glass pipe, or quartz glass tube forms side by side; At low latitudes, solar receiver is the circumference setting at the body of the tower top; In the slightly high area of latitude, solar receiver is one side setting at the body of the tower top.
Described drift sand is quartzy sand grains or glass microballoon or glass sand grains or metal bead or ceramic sand grains or graphite granule or the basalt microballon behind the filtering dust, or the mixture of the above-mentioned grains of sand.
Described drift sand heat accumulation chamber is the storeroom that has heat insulation function and store the high temperature drift sand, and the outlet of drift sand heat accumulation chamber arranges the sand Control device, the control drift sand rate of outflow.
Described steam generator comprises saturated steam generator and superheated steam generator, also comprises drift sand import and export and moisture separation device; Wherein steam line is vertical setting, or laterally or symmetry be obliquely installed; Moisture separation device is arranged between saturated steam generator and the superheated steam generator; The deoxygenation deionized water enters saturated steam generator through pipeline, and the saturated vapour of generation enters superheated steam generator after separating through steam; The superheated vapor that produces connects the turbine steam electricity generating device by steam line; The drift sand import is arranged on the steam generator upper end, adopts the direct reperfusion mode of drift sand that single or multiple drift sand imports need be set; Adopt when vertically boiler steam pipe being set and need dispose eddy channel, drift sand enters sand storage chamber through eddy channel; The sand storage chamber outlet arranges the sand Control device.
Described drift sand lifting device is comprised of metal chain bucket and drift sand pipeline; The drift sand that flows out from steam generator enters sand storage chamber, receives tower bottom by the drift sand pipeline from solar energy by the metal chain bucket that is arranged on sand storage chamber drift sand is promoted to the drift sand fluid director at top, finishes the heat accumulation heat transfer cycle flow process of drift sand;
Novel part of the present invention is, adopts drift sand extensive as its raw material sources of heat accumulation heat-transfer working medium, has the advantages that the heat accumulation temperature is high, thermal resistance is little, cost is low, does not have the trouble and worry of meeting high-temperature gasification, pressure increase, volumetric expansion and freezing; Next is to adopt the pipe type solar energy receiver can increase the thermal radiation receiving area, reduces thermal loss; Be the direct heating steam generator of high-temperature gas that utilizes drift sand and carry again, both kept the advantage of traditional working medium, can improve heat exchange efficiency again.Number when the most important thing is can prolong generating under the advantage that realizes high-temperature heat-storage finally reduces cost of electricity-generating, and for realizing the par generating, alternative fossil energy creates conditions.This device can be realized modular design and layout, can set up the small-sized solar thermal power station, also can set up the large-scale solar energy thermal power station.
Description of drawings
Fig. 1 is the integrated tower solar energy thermal-power-generating device schematic representation of the present invention
Wherein: 1 heliostat light-condensing array, 2 solar energy receive tower, 3 solar receivers, 4 drift sands, 5 drift sand fluid directors, drift sand heat accumulation chambers 6,7 steam generators, 8 sand storage chambers, 9 drift sand lifting devices, 10 metal chain buckets, 11 drift sand pipelines, 12 moisture separation devices, 13 turbine steam electricity generating devices, 14 sinks, 15 water pumps
Embodiment
Adopt the heliostat light-condensing array 1 of the integrated tower solar energy thermal-power-generating device of drift sand heat transfer heat accumulation to be arranged in solar energy reception Tata body 2 peripheries, solar receiver 3 is arranged on circumference or a side at body of the tower top; Adopting drift sand 4 to do conducts heat and heat accumulation working medium, drift sand 4 enters solar receiver 3 through drift sand fluid director 5, enter drift sand heat accumulation chamber 6 through solar energy irradiated heat to 500 to the drift sands 4 of 900 degree, drift sand heat accumulation chamber 6 outlet arranges control valve, the control drift sand speed that flows downward.Drift sand 4 enters steam generator 7, then enters sand storage chamber 8 through steam generator 7, and moisture separation device 12 is arranged on the steam generator 7; Drift sand 4 enters sand storage chamber 8 after steam generator 7, the drift sand fluid director 5 that metal chain bucket 10 and drift sand pipeline 11 by drift sand lifting device 9 configuration is promoted to the body of the tower top, and then enter solar receiver 3, finish the whole circulation process that the drift sand heat accumulation conducts heat.Water pump 15, sink 14 and turbine steam electricity generating device 13 are conventional Lang Ken cycling hot electricity generating device.
Claims (6)
1. adopt the integrated tower solar energy thermal-power-generating device that the drift sand heat accumulation conducts heat to comprise that heliostat light-condensing array, solar energy receive tower, solar receiver, drift sand, drift sand heat accumulation chamber, steam generator, water separator, sand storage chamber, drift sand lifting device, drift sand fluid director, water pump, sink, turbine steam electricity generating device, is characterized in that: drift sand fluid director, solar receiver, heat accumulation chamber, steam generator, sand storage chamber, drift sand lifting device are arranged at solar energy and receive in the Tata body; Solar receiver is positioned at solar energy and receives top of tower, and the solar receiver upper end connects the drift sand fluid director, and the lower end connects drift sand heat accumulation chamber; Drift sand enters drift sand heat accumulation chamber through solar receiver heating is laggard, and lower end, drift sand heat accumulation chamber connects steam generator, and drift sand enters sand storage chamber through steam generator; Sand storage chamber arranges the drift sand lifting device; The drift sand lifting device rises to the drift sand fluid director that solar energy receives top of tower with drift sand, enters solar receiver through the drift sand fluid director; The heliostat light-condensing array receives tower around solar energy and arranges; Steam generator is imported and exported and is connected respectively turbine steam electricity generating device and water pump and sink.
2. the integrated tower solar energy thermal-power-generating device that conducts heat of employing drift sand heat accumulation according to claim 1, it is characterized in that: described solar receiver is by high temperature resistant, the anti abrasive high duty metal pipe that has applied the thermal absorption coating, or stoneware pipe, or the high-boron-silicon glass pipe, or quartz glass tube forms side by side; At low latitudes, solar receiver is the circumference setting at the body of the tower top; In the slightly high area of latitude, solar receiver is one side setting at the body of the tower top.
3. the integrated tower solar energy thermal-power-generating device that conducts heat of employing drift sand heat accumulation according to claim 1, it is characterized in that: described drift sand is quartzy sand grains or glass microballoon or glass sand grains or metal bead or ceramic sand grains or graphite granule or the basalt microballon behind the filtering dust, or the mixture of the above-mentioned grains of sand.
4. the integrated tower solar energy thermal-power-generating device that conducts heat of employing drift sand heat accumulation according to claim 1, it is characterized in that: described drift sand heat accumulation chamber is the storeroom that has heat insulation function and store the high temperature drift sand, the outlet of drift sand heat accumulation chamber arranges the sand Control device, the control drift sand rate of outflow.
5. the integrated tower solar energy thermal-power-generating device that conducts heat of employing drift sand heat accumulation according to claim 1, it is characterized in that: described steam generator comprises saturated steam generator and superheated steam generator, comprises that also drift sand imports and exports and moisture separation device; Wherein steam line is vertical setting, or laterally or symmetry be obliquely installed; Moisture separation device is arranged between saturated steam generator and the superheated steam generator; The deoxygenation deionized water enters saturated steam generator through pipeline, and the saturated vapour of generation enters superheated steam generator after separating through steam; The superheated vapor that produces connects the turbine steam electricity generating device by steam line; The drift sand import is arranged on the steam generator upper end, adopts the direct reperfusion mode of drift sand that single or multiple drift sand imports need be set; Adopt when vertically boiler steam pipe being set and need dispose eddy channel, drift sand enters sand storage chamber through eddy channel; The sand storage chamber outlet arranges the sand Control device.
6. the integrated tower solar energy thermal-power-generating device that conducts heat of employing drift sand heat accumulation according to claim 1, it is characterized in that: described drift sand lifting device is comprised of metal chain bucket and drift sand pipeline; The drift sand that flows out from steam generator enters sand storage chamber, receives tower bottom by the drift sand pipeline from solar energy by the metal chain bucket that is arranged on sand storage chamber drift sand is promoted to the drift sand fluid director at top, finishes the heat accumulation heat transfer cycle flow process of drift sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104180998A CN102913405A (en) | 2012-10-29 | 2012-10-29 | Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104180998A CN102913405A (en) | 2012-10-29 | 2012-10-29 | Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat |
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| CN102913405A true CN102913405A (en) | 2013-02-06 |
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| CN2012104180998A Pending CN102913405A (en) | 2012-10-29 | 2012-10-29 | Integrated tower solar thermal power generation unit employing quicksand to store and transfer heat |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214061A (en) * | 2014-09-05 | 2014-12-17 | 中国科学院工程热物理研究所 | Solar thermal power system |
| CN104266157A (en) * | 2014-10-12 | 2015-01-07 | 中国科学院工程热物理研究所 | Direct contact type high temperature particle fluidization steam generator |
| WO2015043534A1 (en) * | 2013-09-29 | 2015-04-02 | 刘鸿章 | Thermal-storage-agent heater and thermal power generation apparatus using solar-energy leyden energy storage |
| CN104654609A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Solid particle block tower type solar heating heat transfer system |
| CN104896769A (en) * | 2015-06-10 | 2015-09-09 | 河海大学常州校区 | Tower type solar chimney salt, water and electricity cogeneration system and operation method thereof |
| CN105423258A (en) * | 2015-12-24 | 2016-03-23 | 广东石油化工学院 | Compound parabolic solar concentration type molten salt steam generator |
| CN104153954B (en) * | 2013-05-16 | 2016-09-21 | 张建城 | Multi-mode tower type solar energy thermal power generation device |
| CN106438238A (en) * | 2016-08-16 | 2017-02-22 | 华电电力科学研究院 | Tower solar power station medium downstream kinetic energy recover system and method |
| CN106609734A (en) * | 2015-10-27 | 2017-05-03 | 黄斌 | Desert power generation method |
| CN106796052A (en) * | 2014-10-06 | 2017-05-31 | 巴布考克及威尔考克斯公司 | Concentrating solar receiver based on solid |
| WO2018219158A1 (en) * | 2017-05-31 | 2018-12-06 | 北京兆阳光热技术有限公司 | Solar heat collection system and bucket-type lifting machine |
| CN109682096A (en) * | 2018-11-29 | 2019-04-26 | 中国科学院理化技术研究所 | Solar energy heat-storage system based on solid particle |
| CN109695865A (en) * | 2017-10-20 | 2019-04-30 | 东方学校财团法人东方设计大学 | Steam power-generating system |
| CN110905744A (en) * | 2019-11-19 | 2020-03-24 | 中国科学院电工研究所 | Gas sand energy storage power station |
| WO2023284079A1 (en) * | 2021-07-13 | 2023-01-19 | 西安热工研究院有限公司 | Honeycomb particle heat exchanger and heat storage power generation system |
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| CN202883280U (en) * | 2012-10-29 | 2013-04-17 | 张建城 | Integration tower type solar hot power generation device utilizing quicksand for heat accumulation heat transferring |
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| US3908632A (en) * | 1974-06-24 | 1975-09-30 | Universal Oil Prod Co | Solar heat absorbing system |
| US4513733A (en) * | 1982-11-12 | 1985-04-30 | The Babcock & Wilcox Company | Oil field steam production and use |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153954B (en) * | 2013-05-16 | 2016-09-21 | 张建城 | Multi-mode tower type solar energy thermal power generation device |
| WO2015043534A1 (en) * | 2013-09-29 | 2015-04-02 | 刘鸿章 | Thermal-storage-agent heater and thermal power generation apparatus using solar-energy leyden energy storage |
| US10012216B2 (en) | 2013-09-29 | 2018-07-03 | Hongzhang Liu | Heater of heat storage agent and brayton solar thermal power unit with heat storage |
| CN104654609A (en) * | 2013-11-17 | 2015-05-27 | 成都奥能普科技有限公司 | Solid particle block tower type solar heating heat transfer system |
| CN104214061B (en) * | 2014-09-05 | 2017-02-08 | 中国科学院工程热物理研究所 | Solar thermal power system |
| CN104214061A (en) * | 2014-09-05 | 2014-12-17 | 中国科学院工程热物理研究所 | Solar thermal power system |
| CN106796052B (en) * | 2014-10-06 | 2019-11-26 | 巴布考克及威尔考克斯公司 | Concentrating solar receiver based on solid |
| CN106796052A (en) * | 2014-10-06 | 2017-05-31 | 巴布考克及威尔考克斯公司 | Concentrating solar receiver based on solid |
| CN104266157A (en) * | 2014-10-12 | 2015-01-07 | 中国科学院工程热物理研究所 | Direct contact type high temperature particle fluidization steam generator |
| CN104266157B (en) * | 2014-10-12 | 2015-11-18 | 中国科学院工程热物理研究所 | A kind of direct contact type high-temperature particle fluidizing vapor generator |
| CN104896769B (en) * | 2015-06-10 | 2017-08-15 | 河海大学常州校区 | A kind of tower type solar chimney salt, water, cogeneration system and its operation method |
| CN104896769A (en) * | 2015-06-10 | 2015-09-09 | 河海大学常州校区 | Tower type solar chimney salt, water and electricity cogeneration system and operation method thereof |
| CN106609734A (en) * | 2015-10-27 | 2017-05-03 | 黄斌 | Desert power generation method |
| CN105423258A (en) * | 2015-12-24 | 2016-03-23 | 广东石油化工学院 | Compound parabolic solar concentration type molten salt steam generator |
| CN106438238A (en) * | 2016-08-16 | 2017-02-22 | 华电电力科学研究院 | Tower solar power station medium downstream kinetic energy recover system and method |
| WO2018219158A1 (en) * | 2017-05-31 | 2018-12-06 | 北京兆阳光热技术有限公司 | Solar heat collection system and bucket-type lifting machine |
| CN109695865A (en) * | 2017-10-20 | 2019-04-30 | 东方学校财团法人东方设计大学 | Steam power-generating system |
| CN109682096A (en) * | 2018-11-29 | 2019-04-26 | 中国科学院理化技术研究所 | Solar energy heat-storage system based on solid particle |
| CN110905744A (en) * | 2019-11-19 | 2020-03-24 | 中国科学院电工研究所 | Gas sand energy storage power station |
| WO2023284079A1 (en) * | 2021-07-13 | 2023-01-19 | 西安热工研究院有限公司 | Honeycomb particle heat exchanger and heat storage power generation system |
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Application publication date: 20130206 |