CN102322410A - Method of forming hot air by using solar energy to generate power - Google Patents
Method of forming hot air by using solar energy to generate power Download PDFInfo
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- CN102322410A CN102322410A CN201110137765A CN201110137765A CN102322410A CN 102322410 A CN102322410 A CN 102322410A CN 201110137765 A CN201110137765 A CN 201110137765A CN 201110137765 A CN201110137765 A CN 201110137765A CN 102322410 A CN102322410 A CN 102322410A
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- 239000011253 protective coating Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
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- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 229910052761 rare earth metal Inorganic materials 0.000 description 2
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- 230000007812 deficiency Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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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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- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
A method of forming hot air by using solar energy to generate power relates to a solar heat collector (6), a hot wind tower (1) and generating sets (4). The method is characterized in that a wind drum is vertically and upwards built at the highest part of a ridge (5); a vertical shaft is vertically and downwards built along the wind drum; the wind drum and the vertical shaft form the hot wind tower (1); a plurality of drifts which form wind inlet passageways (3) are built at the periphery of the vertical shaft and are tangentially communicated with the periphery of the vertical shaft; the solar heat collector (6) is built along the slope of the ridge; a certain gap exists between the solar heat collector (6) and the ground; the highest part and the side of the solar heat collector (6) are separated from atmosphere; the lowest part of the solar heat collector is communicated with atmosphere; the space formed by the solar heat collector (6) and the ground in the surrounding manner forms a greenhouse; a wind inlet of each wind inlet passageway (3) is arranged in the greenhouse; and the generating set (4) is arranged in each wind inlet passageway (3). The method can be used for realizing the power generation of solar energy and auxiliary energy parallel machine by using the ridge and wastelands.
Description
One, technical field
The present invention relates to the solar power station technology, be specially and utilize solar energy to form the method for hot air flow generating.
Two, background technique
The solar electrical energy generation tower technology comes from the Schlaich of Stuttgart, Germany university and teaches the bold conception that proposed in 1978.This power generation system mainly is made up of solar energy heating canopy, hot blast tower and three substantial sections of turbine generation unit.The solar energy heating canopy build that solar irradiance is strong in, on the reasonable ground of heat-insulating property, between thermal-arrest canopy and the ground certain interval is arranged, and can let surrounding atmosphere get into system; Chimney (hot blast tower) is being adorned in the middle overhead a distance of thermal-arrest canopy, in chimney bottom a turbo machine is housed.The thermal-arrest canopy is to adopt the material of printing opacity to process, and after solar radiation saw through thermal-arrest: most of solar energy formed " greenhouse effect " in the thermal-arrest canopy, and the air temperature in the thermal-arrest canopy is raise, and density reduces; Be positioned at the chimney of thermal-arrest canopy central authorities; Towering hundreds of rice and even the last km of reaching, the hot air flow in the thermal-arrest canopy constantly compiles to thermal-arrest canopy center under the suction of chimney, and intake duct produces powerful hot air flow and rises along chimney; Thereby promote the rotation of turbine wind-force unit, drive the generator set generating; Cool air around the thermal-arrest canopy constantly sucks the thermal-arrest canopy simultaneously, forms thermodynamic cycle.In air flow process, be accompanied by the process of three transformation of energy, at first air is heated, and conversion of solar energy is an air internal energy; Because the rising of air in chimney flowed, interiorly can change kinetic energy into; When air flow to turbo machine, air-flow promoted turbine rotor and rotates, and kinetic energy changes into our required electric energy again.Therefore the thermodynamic cycle process of solar heat air-flow generating is a hot machine cyclic process in essence.Remaining part solar energy is absorbed by the ground below the thermal-arrest canopy.
One Chinese patent application 201010296818 discloses a kind of heat energy wind driven generator; Comprise heat energy, wind chimney, turbine, four parts of motor; It is characterized in that: on comprehensive known various wind-driven generator advantages basis at present; Overcome the existing calm inoperative defective of wind-driven generator, principles such as utilization sunlight heat radiation, air thermal expansion are designed and are a kind ofly utilized sunlight heat energy to excite air flow, utilize high altitude stream to strengthen the device of flowed energy; Even make device under the null situation of natural wind speed, also can rely on the sunlight heat energy and the high low air flow temperature difference to run well merely and generate electricity.
One Chinese patent application 200810062186 discloses a kind of solar energy thermal current wind power generation method.Its technological scheme is: the wind energy power of wind-driven generator stack hot air flow on the basis of natural wind energy generating; This hot air flow is to utilize the air heating of the heat of solar energy generation to wind-power generating system pylon air conducting tube bottom; The wind effect of pulling out owing to tubular pylon air conducting tube; The hot air of pylon air conducting tube bottom will rise at a high speed along the pylon inner chamber with the form of hot air flow; The wind-force of this thermal current generating goes to drive and is positioned at the inner turbine rotation of pylon, and this turbine is connected with the inner gear of the gear-box of engine rooms of wind power generators through transmission shaft, drives wind-driven generator.Hot air flow is collected solar energy through heat-collecting devcie, and this heat-collecting devcie is that a upper and lower opening is conical surface pyramidal structure; Its open top links to each other with the air conducting tube part lower ending opening coupling of pylon, and base or support are fixed in the bottom.Heat-collecting devcie is a heat energy with conversion of solar energy, the inner air of heating pylon air conducting tube bottom taper tower, and inner air is warm more, and the hot air flow wind speed of pylon air conducting tube inside is big more, and the secondary speed of pylon inside is also just big more.The turbine of rotation drives wind turbine power generation through transmission shaft and the inner gear-box of wind-driven generator.
But above-mentioned technology exists a lot significantly not enough, as: 1, solar electrical energy generation need absorb a large amount of heat, and gathering-device will be very big so, causes that floor space is very big; 2, owing to do not have solar energy evening, the electric energy that sends night is very little, even possibly not generate electricity; 3, the heat energy wind driven generator of having announced at present can't resolve the calm problem that does not start, and does not also have to solve the technical bottleneck of extensive generating; 4, the efficient of solar energy generation electric energy is too low in the existing solar energy thermal current wind power generation method, is difficult to extensive generating.
Three, summary of the invention
The objective of the invention is to overcome the deficiency of existing technology, design and a kind ofly can utilize the ridge wasteland as far as possible,, can realize that the solar energy that utilizes of extensive generating forms the method for hot air flow generating through appropriate design; Simultaneously, when illumination is not enough, also can give tower interior air heating, to guarantee successive generating through other supplementary energy (as burn away the refuse etc.).Thereby ridge capable of using wasteland realizes that solar energy and shop help energy parallel operation generating.
Concrete technological scheme of the present invention is:
A kind of method of utilizing solar energy to form the hot air flow generating relates to solar energy heating canopy, hot blast tower and generator set, it is characterized in that:
A, selection ridge highest point are built a cross section vertically upward and are circular air duct, build the vertical shaft of a cross section for circle vertically downward along the center line of air duct simultaneously, and air duct and vertical shaft seamless link constitute the hot blast tower;
B, build a plurality of gallerys along vertical shaft periphery, gallery is communicated with vertical shaft periphery tangential, gallery formation air intake passage;
C, one or more solar energy heating canopies are arranged along the slope construction of ridge periphery; Between solar energy heating canopy and the ground certain interval is arranged; The highest point of each solar energy heating canopy and side and atmosphere cut off; Lowest part and atmosphere, the space that surrounds between each solar energy heating canopy and the ground constitutes a greenhouse;
The intake grill of D, each air intake passage is positioned at corresponding greenhouse;
E, in each air intake passage, generator set is housed.
In the present invention, ridge should be strong waste hillside at sunshine as far as possible; Air duct can be cylindrical shape or taper, and vertical shaft also can be cylindrical shape or taper; Each gallery can be dug and also can dug on different isohypses on the identical isohypse; Gallery generally will have the suitable gradient, is beneficial in the gallery ponding and can flows out naturally etc.; Certain intervals (clearance space can be used as access path, builds corresponding supporting facility etc.) can be arranged between each solar energy heating canopy; The intake grill of air intake passage should be positioned at the higher position in greenhouse; Generator set can be the wind turbine generator group.
Further scheme is; The thermal-arrest coil pipe is housed on the ground in each greenhouse, at the hot blast tower bottom thermal radiation radiator coil tube is housed, thermal radiation radiator coil tube two ends are communicated with the formation circulation loop through pipeline with the thermal-arrest coil pipe; Heat transfer medium is housed in the pipeline, pump also is housed on the pipeline.Heat transfer medium is generally water or air, thereby can further utilize solar energy.
Further scheme is between thermal-arrest coil pipe and ground, to be covered with thermal-protective coating.So that improve the thermal efficiency of solar energy.
Further scheme is that thermal radiation radiator coil tube two ends also are equipped with (being parallel with) assisted heating device.So that when illumination is not enough, also can give the air heating in the tower through other supplementary energy (as burn away the refuse etc.), guarantee successively to generate electricity.Assisted heating device can be built the more smooth place of ridge in.
When concrete design, also should take into full account: along with the diameter increase of tower height and tower, the buoyancy that produces in the hot blast Tata is just big more; The tower height of the wind speed of air intake passage and hot blast tower and diameter, air intake passage length, diameter, factors such as mode of heating are relevant.
Air intake passage is connected with hot blast tower tangential, can improve the suction effect in the hot blast tower, increases the air velocity of air intake passage, makes generator set produce bigger output power.
Generator set of the present invention is mounted in the air intake passage, rather than is installed in hot blast tower bottom central authorities as other solar chimney power station.This mode has been avoided the influence of the interior air flow of hot blast tower to wind turbine generator, thereby has improved the working efficiency of wind-powered electricity generation unit.
External heat source of the present invention is diversification, and can utilize solar energy daytime; Under night or sunshine not strong situation, can utilize the unnecessary solar energy of storage on daytime, perhaps utilize the available renewable sources of energy such as local rubbish, thereby make the power station can continue generating.
Said hot blast tower bottom can be up-small and down-big taper, so that at the hot blast tower bottom power station supplementary equipment is installed, hot blast tower major part preferably is positioned at the inside of massif.
The thermal radiation radiator coil tube preferably is installed in the bottom central of hot blast tower, so that evenly heat the air in the hot blast tower.
Generator set preferably is installed on the end of air intake passage near the hot blast tower.
Wherein:
1, hot blast tower: the base diameter of hot blast tower, the height of tower body diameter and hot blast tower all must design in strict accordance with the theoretical calculation result.
2, air intake passage: air intake passage is connected with hot blast tower tangential, can improve the suction effect in the hot blast tower, increases the air velocity of air intake passage, makes generator set produce bigger output power.Through pre-stage test, the method for this tangential air intake is compared with other air intake mode, can better guide the air flow in the hot blast tower.
When 3, generator set adopts up-to-date centreless rare earth permanent-magnetic generator, generating efficiency is greatly improved.
Certainly, also need consider following factors at least in practice:
1, air velocity is relevant with factors such as the tower height of hot blast tower and diameter, air intake passage length, diameter, mode of heatings in the air intake passage.The hot blast tower is high more, and its construction difficulty is big more, and construction cost is also corresponding high more.So, can not only pursue large-sized hot blast tower simply, and should take all factors into consideration according to the factor of each side because pursuing the output power of single hot blast tower.
2, the power station should be selected in the place of solar energy rich, and the addressing of hot blast tower generally is chosen on the isolated mountain peak as far as possible and builds, and the major part of hot blast tower is built massif inside in, to reduce outside projecting height, to reduce the difficulty of its construction.
The present invention also has the following advantages:
1, the present invention has made full use of the pumping action of " greenhouse effect " and the hot blast tower of solar energy heating canopy.Than traditional solar power station, take effective soil still less.
2, its additional heat energy adopts solar energy and auxiliary heat energy, makes its external heat source supply mode variation, thereby guarantees that its day and night can both stable electric generation.
Four, description of drawings
Fig. 1 is the structure section schematic representation that adopts a kind of solar power station of the inventive method design.
Fig. 2 is that air intake passage is connected detailed drawing with the hot blast tower.
Fig. 3 is heating system figure.
Fig. 4 is a solar energy heating air and water pipe schematic representation (the A-A generalized section of Fig. 1) on daytime.
Fig. 5 is water pipe heat radiation at a night heated air schematic representation (the A-A generalized section of Fig. 1).
In the accompanying drawing: 1, hot blast tower; 2, thermal radiation radiator coil tube; 3, air intake passage; 4, generator set; 5, massif; 6, solar energy heating canopy; 7, thermal-protective coating; 8, thermal-arrest coil pipe; 9, pump; 10, supplementary energy heating equipment; 11, packed layer.
Five, embodiment
Embodiment below in conjunction with concrete further specifies the present invention.Application area of the present invention is not limited to this instance.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of method of utilizing solar energy to form the hot air flow generating relates to solar energy heating canopy 6, hot blast tower 1 and wind turbine generator group 4, it is characterized in that:
A, selection ridge 5 highest points are built a cross section vertically upward and are circular air duct, build the vertical shaft of a cross section for circle vertically downward along the center line of air duct simultaneously, and air duct and vertical shaft seamless link constitute hot blast tower 1;
B, build a plurality of gallerys along silo bottom periphery, gallery is communicated with silo bottom periphery tangential, gallery formation air intake passage 3;
C, a huge solar energy heating canopy 6 is arranged along the slope construction of ridge periphery; Between solar energy heating canopy 6 and the ground certain interval is arranged; The highest point of solar energy heating canopy 6 and side and atmosphere cut off; Lowest part and atmosphere, the space that surrounds between solar energy heating canopy 6 and the ground constitutes the greenhouse;
The intake grill of D, each air intake passage 3 is positioned at the greenhouse;
E, in each air intake passage 3, wind turbine generator group 4 is housed, wherein generator is the centreless rare earth permanent-magnetic generator;
Thermal-arrest coil pipe 8 is housed on the ground in the greenhouse; In hot blast tower 1 bottom thermal radiation radiator coil tube 2 is housed; Thermal radiation radiator coil tube 2 two ends are communicated with the formation circulation loop through pipeline with thermal-arrest coil pipe 8, heat transfer medium-water is housed in the pipeline, also are equipped with on the pipeline and impel heat transfer medium circuit water pump 9.Between thermal-arrest coil pipe 8 and ground, be covered with thermal-protective coating 7.Thermal radiation radiator coil tube (2) two ends also are parallel with assisted heating device 10.Be filled with thermal insulation packing layer 11 between thermal-arrest coil pipe 8 and the thermal-protective coating 7.
Can discharge the solar energy of collecting daytime in order to heated air at night, perhaps come heated air with supplementary energy, make the power station night also can be continual and steady generating.
Claims (4)
1. a method of utilizing solar energy to form the hot air flow generating relates to solar energy heating canopy (6), hot blast tower (1) and generator set (4), it is characterized in that:
A, selection ridge (5) highest point are built a cross section vertically upward and are circular air duct, build the vertical shaft of a cross section for circle vertically downward along the center line of air duct simultaneously, and air duct and vertical shaft seamless link constitute hot blast tower (1);
B, build a plurality of gallerys along vertical shaft periphery, gallery is communicated with vertical shaft periphery tangential, gallery formation air intake passage (3);
C, one or more solar energy heating canopies (6) are arranged along the slope construction of ridge periphery; Between solar energy heating canopy (6) and the ground certain interval is arranged; The highest point of each solar energy heating canopy (6) and side and atmosphere cut off; Lowest part and atmosphere, the space that surrounds between each solar energy heating canopy (6) and the ground constitutes a greenhouse;
The intake grill of D, each air intake passage (3) is positioned at corresponding greenhouse;
E, generator set (4) is housed in each air intake passage (3).
2. the method for utilizing solar energy to form the hot air flow generating according to claim 1; It is characterized in that: thermal-arrest coil pipe (8) is housed on the ground in each greenhouse; In hot blast tower (1) bottom thermal radiation radiator coil tube (2) is housed; Thermal radiation radiator coil tube (2) two ends are communicated with the formation circulation loop through pipeline with thermal-arrest coil pipe (8), heat transfer medium is housed in the pipeline, and pump (9) also is housed on the pipeline.
3. the method for utilizing solar energy to form the hot air flow generating according to claim 2 is characterized in that: between thermal-arrest coil pipe (8) and ground, be covered with thermal-protective coating (7).
4. the method for utilizing solar energy to form the hot air flow generating according to claim 2, it is characterized in that: thermal radiation radiator coil tube (2) two ends also are equipped with supplementary energy heating equipment (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101377656A CN102322410B (en) | 2011-05-21 | 2011-05-21 | Method of forming hot air by using solar energy to generate power |
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| CN2011101377656A CN102322410B (en) | 2011-05-21 | 2011-05-21 | Method of forming hot air by using solar energy to generate power |
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| CN102322410B CN102322410B (en) | 2013-04-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606428A (en) * | 2012-03-16 | 2012-07-25 | 梁造钧 | Light-gathering energy-storage type solar thermal power and airflow mixed power generation system |
| CN106194613A (en) * | 2016-09-19 | 2016-12-07 | 青海中水数易信息科技有限责任公司 | Light-focusing type solar air-flow generating system |
| CN106286171A (en) * | 2016-09-19 | 2017-01-04 | 青海中水数易信息科技有限责任公司 | Parallel connection type solar thermal current power generation system |
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| CN101033732A (en) * | 2006-04-07 | 2007-09-12 | 沈晓莉 | Mountain massif shaft-well chimney highly effective solar energy hot gas flow generating system |
| CN101182832A (en) * | 2007-11-20 | 2008-05-21 | 西安交通大学 | Heat energy and solar complementary thermal current power generation system |
| CN201180614Y (en) * | 2008-04-01 | 2009-01-14 | 王世明 | Hot wind power generation column |
| CN201448963U (en) * | 2009-04-28 | 2010-05-05 | 樊德玺 | Solar underground ventilation device |
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2011
- 2011-05-21 CN CN2011101377656A patent/CN102322410B/en not_active Expired - Fee Related
Patent Citations (8)
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| CN1512061A (en) * | 2002-12-30 | 2004-07-14 | 约瑟普 路易斯 戈麦斯 高马 | Improved wind force recovering device |
| CN1587690A (en) * | 2004-09-02 | 2005-03-02 | 西安交通大学 | Building method for solar energy chimney generator |
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| CN101182832A (en) * | 2007-11-20 | 2008-05-21 | 西安交通大学 | Heat energy and solar complementary thermal current power generation system |
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| CN201448963U (en) * | 2009-04-28 | 2010-05-05 | 樊德玺 | Solar underground ventilation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606428A (en) * | 2012-03-16 | 2012-07-25 | 梁造钧 | Light-gathering energy-storage type solar thermal power and airflow mixed power generation system |
| CN106194613A (en) * | 2016-09-19 | 2016-12-07 | 青海中水数易信息科技有限责任公司 | Light-focusing type solar air-flow generating system |
| CN106286171A (en) * | 2016-09-19 | 2017-01-04 | 青海中水数易信息科技有限责任公司 | Parallel connection type solar thermal current power generation system |
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| CN102322410B (en) | 2013-04-17 |
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