CN102251941A - Mixed power station of extra power parabolic cylinder mirror surface solar thermal collector and thermal power generation - Google Patents
Mixed power station of extra power parabolic cylinder mirror surface solar thermal collector and thermal power generation Download PDFInfo
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- CN102251941A CN102251941A CN2010101788930A CN201010178893A CN102251941A CN 102251941 A CN102251941 A CN 102251941A CN 2010101788930 A CN2010101788930 A CN 2010101788930A CN 201010178893 A CN201010178893 A CN 201010178893A CN 102251941 A CN102251941 A CN 102251941A
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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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Abstract
The invention belongs to energy projects. Parabolic cylinder mirror surfaces are connected in parallel and in series to form network elements, the network elements are combined to form a solar thermal collector with an extra area, and the solar thermal collector and thermal power generation equipment form a mixed power generation system. By using the parabolic cylinder mirror surface solar thermal collector, solar energy is quickly converted into water heat energy, so that the temperature of water reaches 95+/-2 DEG C, water is conveyed into a boiler of a thermal power plant, then the boiler is heated by using a small amount of carbon or natural gas to ensure that water is quickly boiled and vaporized, sufficient vapor is generated for the power generation of a steam turbine, and a transformer substation is connected with a sate grid and the electric power of dozens of megawatts to hundreds of megawatts can be output. In the mixed power generation system, the optimal mixed working mode of solar energy and petrifaction energy is realized, and the power supply of the power station under any meteorological condition can be fully guaranteed, and the electric energy which is low in investment and cost is provided.
Description
This belongs to energy project, it is the energy project of Application of Solar Energy in the hybrid type power station of superhigh power parabolic post minute surface solar thermal collector+thermal power generation, utilize parabolic post minute surface solar thermal collector network element group, realize large size focus utilization solar energy+thermal power generation equipment, realize the generating of superhigh power hybrid type power station, powerful electric energy is provided, quickens to realize subtracting the carbon target.
Disposable fossil energy is tending towards exhausted today fast, and the high pollution of the surging and high carbonization of environment of petroleum chemicals price extremely seriously influences the human existence quality.The scientific worker of global village uses solar energy collecting and has dropped into great enthusiasm, obtained the achievement that attracts people's attention: as solar opto-electronic board, vacuum pipe solar water heater, large-scale tower parabola and slot type parabolic post minute surface Salar light-gathering high temperature heating (can reach 600 ℃) device power station or the like.
The solar opto-electronic board conversion efficiency is low, about tens percent, and under applied environment, be subject to the topped and aging influence of dust, conversion efficiency is lower, and costs an arm and a leg, when needs enlarge capacity, must carry out the storage battery electric power storage to unsettled solar energy earlier, change through inverter that the single-phase 220V/ three-phase of 50Hz 380V is connected to the grid into again or directly use, the price of system is just more expensive, model engineering on probation still can or small capacity independently use and also can.
Vacuum pipe solar water heater, its maximum characteristics are solar energy converting efficient height, can reach more than 60%, be solar energy converting heat energy directly, the heating of the water in the vacuum tube, it can form small capacity (300 liters/500 liters) water heater, directly uses for home unit, can certainly form big capacity hot water integrated device by junior unit (12 pipes/20 pipes), but price is still higher.
The tower type solar power generation system, large-scale paraboloidal solar light-condensing high temperature heating (can reach 600 ℃) device power station, but by 600 ℃ of water of depositing in the Chu jar of evaporating pipe vaporization, make the water rapid heating vaporization in the pipe, steam is sent into steam turbine power generation, is connected to the grid through potential device again.This device can be designed into several megawatts to hundred megawatts of power level power stations in theory, has very big difficult point and risk but realize going up, and at first need build huge parabolic minute surface, and diameter is more than 40M/60M, and parabolic bore area is 1256M
2/ 2826M
2This need spend huge sums and build huge support iron tower, there is huge potential risk in wind force proofing design, simultaneously, though high temperature that can be more than 600 ℃, as NaCl is fused into liquid, send into high gentle Chu tank stores solar energy, this design has the big advantage of Chu energy, but the same difficulty of Project Realization is very big, and cost is also very high.And the trough type solar power generation system, full name is a groove type paraboloid reflector solar heat power generation system, be through series-parallel arrangement with a plurality of grooved parabolic concentrator heat collectors, heating working medium, produce the above high-temperature steam of 550 degree, the generating of driving steam turbine generator set, the same difficulty of Project Realization is also very big, and cost is also very high.
In a word, solar opto-electronic board, tower and groove type solar power generation system all belong to pure solar power system, and the Project Realization difficulty is very big, cost is very high, and electricity price is very high, and investment is reclaimed very difficult, countries in the world are almost supported by the government finance subsidy at present, so popularization and application is also just more difficult.
Solar energy is that an inexhaustible God bestows favour to the energy of human survival and pure green natural environmental protection really, how to realize both high efficiency conversions of solar energy, can cheaply obtain safely and use again.The desirable target in order really to realize this greatness, must with the system engineering theory guidance, comprehensive various advanced technology organically makes up and designs a kind of superhigh power solar energy hybrid type power station, and this is the place of the novelty and the realizability of patent of the present invention.
The hybrid type electric power station system of superhigh power parabolic post minute surface solar thermal collector+thermal power generation is by utilizing parabolic post minute surface solar thermal collector that solar energy is converted to the hydro-thermal energy fast, make water temperature can reach 95 ℃ ± 2 ℃, carry out the boiler heating with a small amount of coal or rock gas again, make the water vaporization of seething with excitement fast, the steam that produces capacity is for the steam turbine generating, go into electrical network through Bian Dian Zhan And again, export tens megawatts to the electric power more than hundred megawatts.When the water yield of parabolic post minute surface solar heater heating surpassed needing of power supply at that time, unnecessary hot water was sent into the large insulation water storage tank and is stored, with standby.The water that has uniform temperature after the steam turbine generating, Back are received input normal-temperature water insulation pond, reheat for the power station to recycle.
A plurality of parabolic post minute surface solar thermal collector strings also connect design composition network element: floor space is 100x100m
2The time, the vertical actinal surface of single parabolic post minute surface is of a size of 3m, horizontal length is 5m, being connected in series 20 grades of total lengths is 100m, line space 6m, altogether 16 the row and connect, single parabolic post minute surface area is 15m
2, the interior parabolic post minute surface solar thermal collector of network element is totally 320 compositions, and network element parabolic post minute surface area is 4800m altogether
2When caning be combined to 1000x1000m with 100 network element floor spaces
2, promptly during 1 square kilometre of land area, parabolic post minute surface solar thermal collector network element can design and realize that total parabolic post minute surface area is 480,000m again through rationally connecting
2By parity of reasoning, wide region arranged for using in area, Gobi desert, NORTHWEST CHINA desert, has ample scope for one's abilities.
According to calendar year 2001 in annual each month average day radiant quantity and year total radiation scale (national statistics data), getting whole nation statistics year radiation mean value is 6000MJ/m
2, getting the full-time thermal efficiency of parabolic post minute surface solar thermal collector is 0.5, total parabolic minute surface area was 480 when pipeline and water storage soak losses rate were 0.2,1 square kilometre, 000m
2The time, can collect solar energy E=1152x10 the whole year
6MJ/y, quite 320x10
6Degree electricity, with generating in 24 hours, on average can the 131.5MW conveying capacity; Or be equivalent to the 40500T coke, or be equivalent to 26700T gasoline.
Be heated to 95 ℃ ± 2 ℃ water through parabolic post mirror focusing heat collector, be input to and burn coal or rock gas or heavy oil boiler heating vaporization, at this moment being heated in the boiler only has 5 ℃ ± 2 ℃ of temperature difference, just can reach 100 ℃, be heated to water vapor again, with the water heating vaporization that is input to 15 ℃ in boiler usually, 80 ℃ the temperature difference is arranged, through parabolic post mirror focusing heat collector to heat power generating system, can save energy the fuel more than 80%, realize the conveying of average out to 131.5MW vast capacity electric power, it is super amount to save several ten thousand tons of coal abilities to the hundreds of thousands ton every year, this proves absolutely: the invention of the energy project of the Application of Solar Energy in the hybrid type power station of superhigh power parabolic post minute surface solar thermal collector+thermal power generation is a science, be the effective way of large-scale centralized applied solar energy, avoided simultaneously the expensive of present tower and groove type solar generating again, high technology, the low difficulty of using of expanding reliably; The huge contribution of parabolic post minute surface solar thermal collector, key just is parabolic post mirror focusing rapid heating big water quantity to 95 ℃ ± 2 ℃, fully satisfy boiler to giving the needs that add the hot water amount, coupling between the two can adapt to work fullest, the performance greatest benefit, simultaneously the excessive water that is heated to 95 ℃ ± 2 ℃, when the cloudy day, boiler still can independently continue generating by former generated energy, guarantee the continuous steady electricity supply in power station, maximum possible has overcome solar energy and has been subjected to meteorologic factor to cause the unstable difficulty of power supply.
The hybrid type power station of superhigh power parabolic post minute surface solar thermal collector+thermal power generation is safe, reliable; The liftoff highest point of horizontal parabolic post minute surface of vertical bore 3m solves the wind resistance power problem of parabolic post minute surface solar thermal collector structure easily less than 2.2m; Be heated to 95 ℃ ± 2 ℃ water, the insulation water storage tank is stored with insulation and realized easily, and is effective; The as easy as rolling off a log NE quantity that enlarges is easily formed overlarge area scale hybrid type electric power station system, and this superhigh power solar energy hybrid type electric power station system just can be given full play to the capacity of equipment of modern Boiler Steam generating with few fuel consumption; Can realize that promptly obtaining the huge solar energy of parabolic post minute surface solar thermal collector structure with few investment, the utmost point supplies with; The superhigh power solar energy hybrid type power station that can popularize construction in national each province apace meets the big sun energy of country's exploitation fundamental policy.Particularly,, high concentration ground overflows very much but exchanging superhigh power solar energy for the large size soil in area, Gobi desert, desert, northwest; Superhigh power solar energy hybrid type electric power station system is solar energy and the best blend modes of operation of petrochemical industry energy, has fully guaranteed the electric energy supply of power station under any weather conditions.Superhigh power solar energy hybrid type electric power station system obtains to invest in the world the electric energy minimum, that cost is minimum, the most cheap.
Superhigh power solar energy hybrid type electric power station system is much better than tower and trough solar technology, is to realize that China subtracts one of effective measure of carbon emission 40% to 45%.
Embodiments of the invention connecting part accompanying drawing is described in detail.
Fig. 1 is that the hybrid type electric power station system of superhigh power parabolic post minute surface solar thermal collector+thermal power generation makes up schematic representation.
Fig. 2 is a parabolic post minute surface solar thermal collector schematic representation.
In Fig. 1, represent solar radiation 1, parabolic post minute surface solar thermal collector network element 2, solar radiation line 1 impinges upon on the parabolic post minute surface 11 of network element horizontal positioned, parabolic post minute surface through horizontal positioned is focused at solar energy on its horizontal focal line, on the horizontal focal line on an efficiency light thermal conversion of the horizontal positioned tubes of material, the shell 9 of this pipe has the glass outer cover of nearly full spectrum high-transmission rate, the efficient optical-thermal conversion material of coated on the appearance garden cylinder of interior pipe 10, in pipe 10 can be with high heat conduction, corrosion resistant, metallic material pipe with certain wall thickness, be connected with normal temperature water to be heated in 10 pipes, when water temperature reaches 95 ℃ ± 2 ℃, control in real time by the water supply of boiler feed water amount requirement standard, the water in 10 pipes is the controlled water of flow with certain water pressure; Between 9 and 10, be the vacuum space, realize guaranteeing that solar light impinges upon on the efficient optical-thermal conversion material appearance of the coated garden cylinder of interior pipe 10 losslessly, finish transform light energy to 5 thermal-arrest tasks, water in heating 10 pipes, the interior water of pipe 10 in the concentrated solar energy heating of water polished object post mirror focusing institute; Because outside the interior pipe 10 is vacuum, outside thermal-radiating thermal resistance is very high, and maximum possible has reduced the external radiation loss of heat energy, does solar energy converting efficient thereby improved solar thermal collector.The 11st, parabolic post minute surface, size can need be selected according to reality, and parabolic post minute surface can directly adopt the combined type coated glass, also can adopt material or self the high light reflectivity rate fork-like farm tool used in ancient China of pasting the anti-rate of high light on metal or the nonmetal parabolic cylinder mould bases to realize.12,13rd, parabolic post minute surface solar thermal collector structure stand spare.
In order to realize the target in superhigh power solar energy hybrid type power station, must enlarge and shine upon area, the paraboloid mirror cylinder solar setup of horizontal positioned is connected in series earlier, again and connect, reach big apace capacity and add hot water, make water temperature reach 95 ℃ ± 2 ℃, then, through controllable valve 3, divide two-way output hot water: the one tunnel directly sends into thermal power station 5, continue the boiler heating, make water temperature reach 95 ℃ ± 2 ℃ water and vaporize fast, produce steam, send into the steam turbine generator generating, export 7 ， And through electric substation again and go into electrical network; Another road has reached 95 ℃ ± 2 ℃ water input high-temperature-hot-waters insulation Chu can storehouses 4, in order to heat supply in evening power station heating gasifying boiler, or daytime during meteorological the variation heat supply power station heating gasifying boiler use.In order more effectively to utilize water resources, directly the water behind the Back receipts steam turbine generator worker is sent into Chu reservoir 6 to be heated, and insulation connects water pipe 8.Thereby finished the overall process that uses the thermal power station generating from solar energy.
Claims (4)
1. Application of Solar Energy with the hybrid type power station of superhigh power parabolic post minute surface solar thermal collector (containing general power stage parabolic post minute surface solar thermal collector)+thermal power generation, it is characterized in that by parabolic post minute surface string and connect forming network element, be combined to form the super large area solar energy heat collector by network element again and thermal power generation equipment is formed the hybrid type electric generating station system.By utilizing parabolic post minute surface solar thermal collector 2, be converted to the hydro-thermal energy fast through 2 solar energy, make water temperature can reach 95 ℃ ± 2 ℃ or required water temperature, send in the boiler of cogeneration power plant 5 through insulation pipe 8 and valve 3, carry out boiler heating with a small amount of coal or rock gas again, make the water vaporization of seething with excitement fast, the steam driven steam turbine that produces capacity air pressure generates electricity, go into electrical network through the 7 output ， And of electric substation again.This invention is solar energy and the best blend modes of operation of petrochemical industry energy.
2. as right 1 desired parabolic post minute surface solar thermal collector, horizontal positioned also can vertically be placed parabolic post minute surface, parabolic post minute surface can directly adopt the combined type coated glass, also can adopt metal or nonmetal parabolic cylinder from having high light reflectivity rate high finishingness or pasting the material fork-like farm tool used in ancient China realization solar light focusing of the anti-rate of high light; The solar energy heating organ pipe is placed on the focal line of parabolic post minute surface, it is had the glass outer cover of nearly full spectrum high-transmission rate by shell 9, the efficient optical-thermal conversion material of coated on the appearance garden cylinder of interior pipe 10, interior pipe 10 can be formed with high heat conduction, corrosion resistant, as to have certain wall thickness metal and nonmetallic material pipe, is connected with normal temperature in 10 pipes or has certain pressure water to be heated.
3. as right 1 desired a plurality of parabolic post minute surface solar thermal collector strings and connect and form network element 2, or form more large-area parabolic post minute surface solar thermal collector group net by a plurality of network elements again.
4. as right 1 desired a plurality of parabolic post minute surface solar thermal collector strings and connect and form network element 2, form the solar energy hot water supply device separately, for collective/individual applications.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101788930A CN102251941A (en) | 2010-05-20 | 2010-05-20 | Mixed power station of extra power parabolic cylinder mirror surface solar thermal collector and thermal power generation |
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| CN2010101788930A CN102251941A (en) | 2010-05-20 | 2010-05-20 | Mixed power station of extra power parabolic cylinder mirror surface solar thermal collector and thermal power generation |
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| CN102251941A true CN102251941A (en) | 2011-11-23 |
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| CN2010101788930A Pending CN102251941A (en) | 2010-05-20 | 2010-05-20 | Mixed power station of extra power parabolic cylinder mirror surface solar thermal collector and thermal power generation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034245A (en) * | 2012-11-30 | 2013-04-10 | 张卫平 | Honeycomb type solar energy collecting device |
| CN112944702A (en) * | 2021-02-07 | 2021-06-11 | 中国科学院重庆绿色智能技术研究院 | Method, device and medium for calculating input-output ratio of solar cogeneration system |
Citations (5)
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| CN85200333U (en) * | 1985-04-01 | 1986-01-15 | 刘二中 | Efficient non-tracking line-focusing solar concentrator |
| CN2305622Y (en) * | 1997-04-17 | 1999-01-27 | 韩志刚 | Light-focasing device for solar vacuum heat collecting tube |
| CN1862139A (en) * | 2006-06-21 | 2006-11-15 | 沈金锐 | Internal focusing vacuum solar heat collecting pipe |
| CN101260815A (en) * | 2008-04-24 | 2008-09-10 | 华北电力大学 | Paraboloid trough type solar heat-collector auxiliary coal-burning boiler mixing heat power generation system |
| CN101614195A (en) * | 2008-06-24 | 2009-12-30 | 管理 | The group connection is the chilly low-voltage power generating system that coagulates of formula solar heat pipe steam boiler on the sunny side |
-
2010
- 2010-05-20 CN CN2010101788930A patent/CN102251941A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200333U (en) * | 1985-04-01 | 1986-01-15 | 刘二中 | Efficient non-tracking line-focusing solar concentrator |
| CN2305622Y (en) * | 1997-04-17 | 1999-01-27 | 韩志刚 | Light-focasing device for solar vacuum heat collecting tube |
| CN1862139A (en) * | 2006-06-21 | 2006-11-15 | 沈金锐 | Internal focusing vacuum solar heat collecting pipe |
| CN101260815A (en) * | 2008-04-24 | 2008-09-10 | 华北电力大学 | Paraboloid trough type solar heat-collector auxiliary coal-burning boiler mixing heat power generation system |
| CN101614195A (en) * | 2008-06-24 | 2009-12-30 | 管理 | The group connection is the chilly low-voltage power generating system that coagulates of formula solar heat pipe steam boiler on the sunny side |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034245A (en) * | 2012-11-30 | 2013-04-10 | 张卫平 | Honeycomb type solar energy collecting device |
| CN112944702A (en) * | 2021-02-07 | 2021-06-11 | 中国科学院重庆绿色智能技术研究院 | Method, device and medium for calculating input-output ratio of solar cogeneration system |
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Application publication date: 20111123 |