CN102966498B - Solar thermal power generation equipment and solar power generation method thereof - Google Patents

Solar thermal power generation equipment and solar power generation method thereof Download PDF

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Publication number
CN102966498B
CN102966498B CN201110257617.8A CN201110257617A CN102966498B CN 102966498 B CN102966498 B CN 102966498B CN 201110257617 A CN201110257617 A CN 201110257617A CN 102966498 B CN102966498 B CN 102966498B
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China
Prior art keywords
secondary condenser
thermal power
solar thermal
temperature heat
condenser
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Expired - Fee Related
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CN201110257617.8A
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Chinese (zh)
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CN102966498A (en
Inventor
林礼区
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Wenzhou University
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Wenzhou University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Abstract

The invention discloses solar thermal power generation equipment and a solar power generation method thereof. The solar thermal power generation equipment comprises a mirror field (1), a secondary condenser (2), a light concentrating tower (3) and power generation equipment (4), wherein the light concentrating tower (3) is arranged at the center of the mirror field (1); the top of the light concentrating tower (3) is connected with the secondary condenser (2) through a secondary condenser fixed mount (6); the bottom of the light concentrating tower (3) is provided with a heat absorber (5); the heat absorber (5) is connected with the power generation equipment (4); and the secondary condenser (2) is a hyperbolic curve lower convex lens spliced formed by splicing plane mirrors (8). The solar thermal power generation equipment has the advantages of having high utilization rate of solar energy, low loss and relatively lower construction cost of the equipment.

Description

A kind of solar thermal power plants and its method for electric generation using solar energy
Technical field
The present invention relates to a kind of electricity-generating method and generating equipment, particularly a kind of solar thermal power plants and its solar energy Electricity-generating method.
Background technology
As the development and progress of scientific level, the depletion rate of non-renewable resources are also increasingly faster, people start to seek Seek the using method to Renewable resource.Solar energy is inexhaustible regenerative resource, in Fossil fuel year by year Today of reduction, international energy situation sternness increasingly, it is to realize energy supply diversification, ensure energy peace to develop solar energy One of full important channel.
At present scientist has now been developed a kind of equipment of utilization solar electrical energy generation, this equipment include condenser mirror, Mirror support, day by day device and heat collector, are reflexed to sunlight positioned at focusing mirror by the condenser mirror of arc On heat collector on line, heat collector absorbs the heat of sunlight, then constantly heats the conduction oil in heat collector, heated Conduction oil is transported to again generating equipment for generating electricity.The utilization rate of this generating equipment solar energy is relatively low, equipment construction cost It is very high, and floor space is very big.
The content of the invention
It is an object of the present invention to provide a kind of solar thermal power plants and its method for electric generation using solar energy, it has too It is positive can utilization rate is high, loss less with the advantage of equipment manufacturing cost advantage of lower cost.
Technical scheme:A kind of solar thermal power plants, including Jing Chang, secondary condenser, optically focused tower and send out Electric equipment, located at the center of Jing Chang, the top of optically focused tower is by secondary condenser fixed mount and secondary condenser for optically focused tower Connection, optically focused tower bottom is provided with heat extractor, and heat extractor is connected with generating equipment;Secondary condenser for plane mirror be spliced it is double Convex lens under curve.
In aforesaid solar thermal power plants, the center of secondary condenser is provided with a through hole, the thickness of secondary condenser Du Cong centers are gradually reduced to edge.
In aforesaid solar thermal power plants, the distribution mode of plane mirror is uniformly distributed for latticed.
In aforesaid solar thermal power plants, Jing Chang is made up of the condensing reflection device of more than 1, condensing reflection device It is distributed in a ring.
In aforesaid solar thermal power plants, condensing reflection device include light gathering reflector mirror support, condenser mirror and Day by day device, located at the top of light gathering reflector mirror support, day by day device is located at light gathering reflector mirror support and optically focused for condenser mirror Between reflecting mirror.
In aforesaid solar thermal power plants, generating equipment includes low-temperature heat accumulating device, high-temperature heat accumulation device and steam turbine, inhales Hot device is connected with low-temperature heat accumulating device and high-temperature heat accumulation device, and low-temperature heat accumulating device and high-temperature heat accumulation device are connected with steam generator, steam Generator is connected with steam turbine, and steam turbine is connected with generating set;Cold salt pump, high temperature are provided between heat extractor and low-temperature heat accumulating device Hot salt pump is provided between thermophore and steam generator, feed pump is provided between steam generator and steam turbine.
A kind of method generated electricity using aforesaid solar thermal power plants, sunlight is filled in the light gathering reflector of Jing Chang Put, condensing reflection device reflexes to light in the secondary condenser of optically focused top of tower, and secondary condenser is again light To in the heat extractor on ground, light is converted into the available energy that generates electricity to reflecting focal by heat extractor again, then by energy Amount passes to generating equipment and is generated electricity.
In aforesaid method for electric generation using solar energy, secondary condenser is convex lens under the hyperbola being spliced by plane mirror.
In aforesaid method for electric generation using solar energy, heat extractor is located at the underface of secondary condenser.
Compared with prior art, because solar energy belongs to Renewable resource, the present invention can be effective using solar electrical energy generation The consumption of non-renewable resources is reduced, and can solve the problem that traditional thermal power plant problem serious to air pollution.Due to this equipment In the hyperbola that is spliced using plane mirror of secondary condenser under convex lens, reflex to the light on ground than more uniform, will not There is the phenomenon of local light intensity, solar energy can be made full use of.And the present invention is due to simple structure, in solving prior art Solar power plant construction cost is high, the big shortcoming of floor space.
Due to the present invention by heat extractor located at the bottom of optically focused tower, it is not only able to improve the photothermal conversion efficiency of heat extractor, But also can reduce the installation cost of beam condensing unit and heat sink.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention;
Fig. 2 is the structural representation of secondary condenser and optically focused tower;
Fig. 3 is the structural representation of secondary condenser;
Fig. 4 is the structural representation of condensing reflection device;
Fig. 5 is the structural representation of generating equipment.
Labelling in accompanying drawing for:1- Jing Chang, 2- secondary condenser, 3- optically focused towers, 4- generating equipments, 5- heat extractors, 6- bis- Secondary condenser fixed mount, 7- condensing reflection devices, 8- plane mirrors, 9- through holes, 10- low-temperature heat accumulating devices, 11- high-temperature heat accumulation devices, 12- Steam generator, the hot salt pumps of 13-, 14- steam turbines, the cold salt pumps of 15-, 16- feed pumps, 17- generating sets, 18- condenser mirrors Support, 19- condenser mirrors, 20- devices day by day.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further illustrated.
Embodiments of the invention:As depicted in figs. 1 and 2, a kind of solar thermal power plants, including mirror field 1, secondary condensation Device 2, optically focused tower 3 and generating equipment 4, optically focused tower 3 passes through secondary condenser located at the center of mirror field 1, the top of optically focused tower 3 Fixed mount 6 is connected with secondary condenser 2, and the bottom of optically focused tower 3 is provided with heat extractor 5, and heat extractor 5 is connected with generating equipment 4;It is secondary poly- Light device 2 is convex lens under the hyperbola that plane mirror 8 is spliced.
As shown in figure 3, the center of secondary condenser 2 is provided with a through hole 9, the thickness of secondary condenser 2 is from center to side Edge is gradually reduced.The distribution mode of plane mirror 8 is uniformly distributed for latticed.
Mirror field 1 is made up of the condensing reflection device 7 of more than 1, and condensing reflection device 7 is distributed in a ring.
As shown in figure 4, condensing reflection device 7 includes light gathering reflector mirror support 18, condenser mirror 19 and device 20 day by day, , located at the top of light gathering reflector mirror support 18, day by day device 20 is anti-located at light gathering reflector mirror support 18 and optically focused for condenser mirror 19 Penetrate between mirror 19.
As shown in figure 5, generating equipment 4 include low-temperature heat accumulating device 10, high-temperature heat accumulation device 11 and steam turbine 14, heat extractor 5 with Low-temperature heat accumulating device 10 and high-temperature heat accumulation device 11 connect, and low-temperature heat accumulating device 10 and high-temperature heat accumulation device 11 are connected with steam generator 12, Steam generator 12 is connected with steam turbine 14, and steam turbine 14 is connected with generating set 17;Between heat extractor 5 and low-temperature heat accumulating device 10 Cold salt pump 15 is provided with, hot salt pump 13, steam generator 12 and steam turbine are provided between high-temperature heat accumulation device 11 and steam generator 12 Feed pump 16 is provided between 14.
A kind of method generated electricity using aforementioned solar thermal power plants, condensing reflection device of the sunlight in Jing Chang On, condensing reflection device reflexes to light in the secondary condenser of optically focused top of tower, and secondary condenser is anti-light again In penetrating the heat extractor converged on ground, light is converted into the available energy that generates electricity by heat extractor again, then by energy Pass to generating equipment to be generated electricity.
The operation principle of the present invention:Sunlight is radiated in mirror field 1, and the condensing reflection device 7 in mirror field 1 reflects sunlight To on the reflecting surface of secondary condenser 2, in the heat extractor 5 of the reflecting focal of sunlight Jing secondary condensers 2 to the bottom of optically focused tower 3, Generating available energy is formed in heat extractor 5, low temperature heat-carrying agent enters into heat absorption from the cold salt pumps 15 of Jing in low-temperature heat accumulating device 10 In device 5, absorb solar energy and become high temperature heat-carrying agent, in entering into high-temperature heat accumulation device 11;High temperature heat-carrying agent is from high-temperature heat accumulation The hot salt pumps 13 of Jing are entered in steam bleed steam 12 in device 11, are released energy and are changed into low temperature heat-carrying agent, and low temperature heat-carrying agent is again In returning to low-temperature heat accumulating device 10.The solidifying water Jing feed pumps 16 of the exhaust steam that the afterbody of steam turbine 14 is discharged enter into steam bleed steam 12 In, condensed water absorbs heat in steam generator 12 and is changed into the available steam that generates electricity, and in entering into generating set 17, completes to generate electricity Process.

Claims (6)

1. a kind of solar thermal power plants, it is characterised in that:Including Jing Chang (1), secondary condenser (2), optically focused tower (3) and send out Electric equipment (4), optically focused tower (3) passes through secondary condenser fixed mount located at the center of Jing Chang (1), the top of optically focused tower (3) (6) it is connected with secondary condenser (2), optically focused tower (3) bottom is provided with heat extractor (5), heat extractor (5) is connected with generating equipment (4); Convex lens under the hyperbola that secondary condenser (2) is spliced for plane mirror (8);The center of secondary condenser (2) is provided with one and leads to Hole (9), the thickness of secondary condenser (2) is gradually reduced from center to edge;The distribution mode of plane mirror (8) is latticed uniform Distribution;Jing Chang (1) is made up of the condensing reflection device (7) of more than 1, and condensing reflection device (7) is distributed in a ring.
2. solar thermal power plants according to claim 1, it is characterised in that:Condensing reflection device (7) is including optically focused Mirror support (18), condenser mirror (19) and device (20) day by day, condenser mirror (19) is located at light gathering reflector mirror support (18) top, day by day device (20) is between light gathering reflector mirror support (18) and condenser mirror (19).
3. solar thermal power plants according to claim 1, it is characterised in that:Generating equipment (4) is including low-temperature heat accumulating Device (10), high-temperature heat accumulation device (11), generating set (17) and steam turbine (14), heat extractor (5) and low-temperature heat accumulating device (10) and height Intermediate temperature regenerator device (11) connects, and low-temperature heat accumulating device (10) and high-temperature heat accumulation device (11) are connected with steam generator (12), steam generation Device (12) is connected with steam turbine (14), and steam turbine (14) is connected with generating set (17);Heat extractor (5) and low-temperature heat accumulating device (10) Between be provided with cold salt pump (15), hot salt pump (13), steam generation are provided between high-temperature heat accumulation device (11) and steam generator (12) Feed pump (16) is provided between device (12) and steam turbine (14).
4. the method that solar thermal power plants described in a kind of utilization claim 1~2 any one generate electricity, it is characterised in that: On the condensing reflection device (7) of Jing Chang (1), condensing reflection device (7) reflexes to light located at optically focused tower for sunlight (3) in the secondary condenser (2) at the top of, secondary condenser (2) is again light reflecting focal to the heat extractor (5) on ground In, light is converted into the available energy that generates electricity by heat extractor (5) again, and then transferring energy to generating equipment (4) carries out sending out Electricity.
5. the method that solar thermal power plants according to claim 4 generate electricity, it is characterised in that:Secondary condenser (2) It is convex lens under the hyperbola being spliced by plane mirror.
6. the method that solar thermal power plants according to claim 4 generate electricity, it is characterised in that:Heat extractor (5) is located at The underface of secondary condenser (2).
CN201110257617.8A 2011-09-02 2011-09-02 Solar thermal power generation equipment and solar power generation method thereof Expired - Fee Related CN102966498B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207393399U (en) * 2017-11-03 2018-05-22 深圳市爱能森科技有限公司 Dish-style solar-thermal generating system
CN108469841A (en) * 2018-03-17 2018-08-31 郭其秀 A kind of heliostat light tracing system waterborne and its method of following spot

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929530A (en) * 1995-08-18 1999-07-27 Mcdonnell Douglas Corporation Advanced solar controller
CN101344020A (en) * 2007-07-11 2009-01-14 卢剑超 Solar tower type focusing high temperature heat collection steam boiler-turbine electric generating apparatus
CN101435634A (en) * 2008-11-27 2009-05-20 李涛 Convex lens and concave lens heat accumulation solar energy electric generating set
CN102042184A (en) * 2009-10-12 2011-05-04 蔡学庆 Solar energy light converging system
CN202209258U (en) * 2011-09-02 2012-05-02 沈兴财 Solar energy thermal power-generating equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5929530A (en) * 1995-08-18 1999-07-27 Mcdonnell Douglas Corporation Advanced solar controller
CN101344020A (en) * 2007-07-11 2009-01-14 卢剑超 Solar tower type focusing high temperature heat collection steam boiler-turbine electric generating apparatus
CN101435634A (en) * 2008-11-27 2009-05-20 李涛 Convex lens and concave lens heat accumulation solar energy electric generating set
CN102042184A (en) * 2009-10-12 2011-05-04 蔡学庆 Solar energy light converging system
CN202209258U (en) * 2011-09-02 2012-05-02 沈兴财 Solar energy thermal power-generating equipment

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Address after: 325035 Zhejiang Economic Development Zone, Ouhai, South East Road, No. 38, Wenzhou National University Science Park Incubator

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Address before: 313012 Shuanglin town in Zhejiang province Huzhou city Nanxun District No. 26 Dou Xing Village housekeeper

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