CN202419966U - Solar-energy optical-heating groove type large-opening double-layer parabola efficient heat collector - Google Patents

Solar-energy optical-heating groove type large-opening double-layer parabola efficient heat collector Download PDF

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Publication number
CN202419966U
CN202419966U CN2011205143056U CN201120514305U CN202419966U CN 202419966 U CN202419966 U CN 202419966U CN 2011205143056 U CN2011205143056 U CN 2011205143056U CN 201120514305 U CN201120514305 U CN 201120514305U CN 202419966 U CN202419966 U CN 202419966U
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China
Prior art keywords
condenser
heat collector
thermal
girder
tripod
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Withdrawn - After Issue
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CN2011205143056U
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Chinese (zh)
Inventor
薛黎明
王江英
王洪国
高培玉
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Rayspower New Energy Co Ltd
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Rayspower New Energy Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S2023/87—Reflectors layout
    • F24S2023/872—Assemblies of spaced reflective elements on common support, e.g. Fresnel reflectors
    • 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

Abstract

The utility model discloses a solar-energy optical-heating groove type large-opening double-layer parabola efficient heat collector which comprises a triangular-support main beam, a plurality of converging lens units and a heat collecting tube, wherein the plurality of converging lens units are fixedly installed on the triangular-support main beam side by side, converging focuses of the plurality of converging lens units converge on the heat collecting tube, each converging lens unit comprises a pair of external converging lens and internal converging lens which are separately arranged, and the separated distance between the external converging lens and the internal converging lens forms an air flow channel. The solar-energy optical-heating groove type large-opening double-layer parabola efficient heat collector mainly utilizes the parabola converging theory, strong torsion resistance of a triangular welding support main beam, high accuracy of stamping parts of parabolic type molds and the techniques of improving wind-resisting level of the heat collector by changing the wind-load carrier coefficient of the heat collector so that the heat collector has the advantages of being high in converging accuracy and heat gathering efficiency, strong in wind resisting performance and low in whole construction cost of power stations.

Description

The double-deck parabola efficient heat-collecting of the big opening of solar energy optical-thermal slot type device
Technical field
The utility model relates to the double-deck parabola efficient heat-collecting of the big opening of a kind of solar energy optical-thermal slot type device.
Background technology
At present, solar energy has been widely used in all trades and professions as a kind of novel clean energy resource.Wherein, utilize solar energy to generate electricity and become the focus of new forms of energy with its green, advantage such as pollution-free.The solar energy thermo-power station also begins to move to maturity after the ripe development of photovoltaic plant now, moves towards market gradually.Slot type parabola heat collector is applied on the photo-thermal power station maturely.Yet the opening length of slot type parabola heat collector all is 5770mm and the 6770mm that is used for the high temperature power station mostly now.If increase the parabola opening size of heat collector, the temperature of thermal-collecting tube can be higher in the heat collector, more helps improving the generating efficiency in power station.But if increase heat collector parabola opening size, under identical wind speed, collector bracket receives wind-force and can increase, and promptly its wind loading rating can descend.Can only strengthen its steel structure support and partly increase its wind resistance grade, but relevant costs such as its steel construction can increase.
The utility model content
To the problem that prior art exists, the purpose of the utility model is to provide a kind of wind loading rating the double-deck parabola efficient heat-collecting of the big opening of solar energy optical-thermal slot type device strong, that can reduce greatly the construction cost in whole power station.
For realizing above-mentioned purpose; The double-deck parabola efficient heat-collecting of the big opening of the utility model solar energy optical-thermal slot type device; Comprise tripod girder, several condenser unit and thermal-collecting tubes; Several condenser unit are fixedly mounted on the tripod girder side by side, and the optically focused focus of each condenser unit converges on the thermal-collecting tube; Wherein, the condenser unit comprises pair of outside condenser and the inboard condenser that is provided with separately, and the distance at interval constitutes gas channel between outside condenser and the inboard condenser.
Further, be symmetrically arranged with the said condenser of two rows unit along the left and right sides of said tripod girder length direction, all be arranged side by side several said condenser unit among each row along the length direction of said tripod girder.
Further, the said condenser of two rows is provided with between the unit separately, and separated therebetween distance constitutes gas channel.
Further, in a said condenser unit, the parabola focal length of the parabola focal distance ratio of said inboard condenser outside condenser is short, and two sections parabolic focus all drop on the said thermal-collecting tube; And for the adjacent end portion of said outside condenser and inboard condenser, the position of said inboard condenser abutting end is higher than the position of said outside condenser abutting end.
Further; Said condenser unit is fixedly mounted on the parabolic type assembly, and the parabolic type assembly is installed in condenser and supports on the side lever, and condenser supports side lever and is arranged on the said tripod girder; Said tripod girder is arranged on the main backstop, and main backstop is installed on the ground through ground.
Further, said main backstop is that install on the ground through ground its lower end by the steel structure support of I-steel and square steel tube welding, and its upper end is welded with plain bearing housing or worm speed reducer seat.
Further, said tripod girder is that said tripod girder is provided with the thermal-collecting tube support by the main beam structure of square steel tube welding, and said thermal-collecting tube is arranged on the thermal-collecting tube support.
Further, said parabolic type assembly is arranged at intervals with inside and outside two sections installation portions according to the position relation of said outside condenser and inboard condenser, and said parabolic type assembly is the large-scale stamping parts that is stamped to form by mould, is welded with reinforcement on it.
Further, the thermal-collecting tube support is to be welded by square steel tube, and said thermal-collecting tube then is used to receive the sunlight heat that said outside condenser and inboard condenser reflect back, and is filled with conduction oil or fused salt in the said thermal-collecting tube.
Further; The upper end of said main backstop is provided with worm speed reducer through said worm speed reducer seat, and this worm speed reducer is a turbine and worm formula reducing gear, and it does driving by stepper motor; Stepper motor turns round under the control of solar tracking system; The torque that output through worm speed reducer produces is ordered about said tripod girder and is rotated, and follows the tracks of the sun.
The utility model has mainly utilized parabola optically focused principle, tripod type weldering frame girder resistance to torsion precision strong, parabolic type mould stamping parts is high and improve the technology such as wind resistance grade of heat collector through the structural shape factor of wind load that changes heat collector, makes the utility model heat collector have that the optically focused precision is high, heat build-up efficient is high, strong, the low advantage of the whole construction cost in power station of wind loading rating.
Description of drawings
Fig. 1 is the utility model collector structure front elevational schematic;
Fig. 2 is the utility model collector structure schematic side view;
Fig. 3 is the utility model heat collector light focusing light path sketch map;
Fig. 4 is the distinguished and admirable sketch map that facings the wind directly over the utility model heat collector.
The specific embodiment
Below, with reference to accompanying drawing, the utility model is more comprehensively explained, the exemplary embodiment of the utility model has been shown in the accompanying drawing.Yet the utility model can be presented as multiple multi-form, and should not be construed as the exemplary embodiment that is confined to narrate here.But, these embodiment are provided, thereby make the utility model, and the scope of the utility model is fully conveyed to those of ordinary skill in the art comprehensively with complete.
In order to be easy to explanation, here can use such as " on ", D score " left side " space relative terms such as " right sides ", be used for element shown in the key diagram or characteristic relation with respect to another element or characteristic.It should be understood that except the orientation shown in the figure spatial terminology is intended to comprise the different azimuth of device in using or operating.For example, if the device among the figure is squeezed, be stated as the element that is positioned at other elements or characteristic D score will be positioned at other elements or characteristic " on ".Therefore, the exemplary term D score can comprise upper and lower orientation both.Device can otherwise be located (revolve turn 90 degrees or be positioned at other orientation), and the relative explanation in used here space can correspondingly be explained.
Like Fig. 1, shown in 2, the double-deck parabola efficient heat-collecting of the big opening of solar energy optical-thermal slot type device comprises in the utility model: main backstop 1, tripod girder 2; Condenser supports side lever 3, parabolic type assembly 4, outside condenser 5; Inboard condenser 6, thermal-collecting tube 7, thermal-collecting tube support 8; Worm speed reducer 9, several condenser unit 10.A condenser unit 10 comprises pair of outside condenser 5 and inboard condenser 6.
Wherein, main backstop 1 is the steel structure support by the welding of materials such as I-steel and square steel tube.Install on the ground through ground its lower end, and its upper end is welded with plain bearing housing or worm speed reducer seat.Tripod girder 2 is arranged on the main backstop 1 through handware with worm speed reducer 9.
Tripod girder 2 is that its anti-rotational is good, more can strengthen the wind resistance grade of whole heat collector by the main beam structure of materials such as square steel tube welding.The span of a domestic and international girder is about 12m now.The tripod girder of the utility model design is about 24m.In the power station of identical MW class, nearly can save the main backstop of three one-tenth support triangle frame girder, the construction cost of saving the power station more.
Condenser supports side lever 3 through being bolted on the tripod girder 2, and parabolic type assembly 4 is installed in condenser and supports on the side lever 3.Parabolic type assembly 4 is the large-scale stamping parts that are stamped to form by mould, is welded with the weld assembly of reinforcement on it.Parabolic type on the parabolic type assembly 4 is divided into inside and outside two sections installation portions, and the parabola focal length in the inboard parabola focal distance ratio outside is short, but two sections parabolic focus drop on the same point.
Several condenser unit 10 are installed on the parabolic type assembly 4; The left and right sides along tripod girder 2 length directions is symmetrically arranged with two row's condenser unit 10; All several condenser unit 10 have been arranged side by side among each row, quantity is set adjusts according to actual needs of condenser unit 10 along the length direction of tripod girder 2.The optically focused focus of each condenser unit 10 converges on the thermal-collecting tube 7; Wherein, the pair of outside condenser 5 in condenser unit 10 is provided with inboard condenser 6 separately, at interval distance formation gas channel 11 between pair of outside condenser 5 and the inboard condenser 6.And also be provided with separately between two row's condenser unit 10, separated therebetween distance constitutes gas channel 12.
The parabolic shape of the inside and outside two sections installation portions on the parabolic shape of the outside condenser 5 and inboard condenser 6 and the parabolic type assembly 4 is identical; In a condenser unit 10; The parabola focal length of the parabola focal distance ratio outside condenser 5 of inboard condenser 6 is short, and two sections parabolic focus all drop on the thermal-collecting tube 7; And for the adjacent end portion of outside condenser 5 and inboard condenser 6, the position of inboard condenser 6 abutting ends is higher than the position of outside condenser 5 abutting ends.
After outside condenser 5 fixedly mounts with inboard condenser 6; Leave a gas channel that segment distance constitutes 11 between outside condenser 5 and the inboard condenser 6; Thereby the structural shape factor of wind load of whole heat collector is reduced; Improve the wind resistance grade of whole heat collector, and then can improve the opening size of heat collector, promptly improved the heat build-up efficient of heat collector.In the construction in equal MW class photo-thermal power station, under the same situation of power station span, can save the plurality of rows heat collector, save the construction cost in power station more.
Tripod girder 2 is provided with thermal-collecting tube support 8, and thermal-collecting tube 7 is arranged on the thermal-collecting tube support 8.Thermal-collecting tube support 8 is to be welded by square steel tube; Thermal-collecting tube 7 is placed near the inside and outside parabolic focus; The sunlight heat that condenser 5 and inboard condenser 6 reflected back outside thermal-collecting tube 7 was used to receive, thereby media such as the conduction oil of heating thermal-collecting tube 7 inside or fused salt.
The upper end of main backstop 1 is provided with worm speed reducer 9 through the worm speed reducer seat; Worm speed reducer 9 is turbine and worm formula reducing gears; It does driving by stepper motor, and stepper motor turns round under the control of solar tracking system, the torque that the output through worm speed reducer produces; Order about said tripod girder 2 and rotate, follow the tracks of the sun.
The utility model has mainly utilized parabola optically focused principle, tripod type weldering frame girder resistance to torsion precision strong, parabolic type mould stamping parts is high and through the technology such as wind resistance grade that the structural shape factor of wind load that changes heat collector improves heat collector make that it has that the optically focused precision is high, heat build-up efficient height, strong, the low advantage of the whole construction cost in power station of wind loading rating.Thereby to the construction and the operation in photo-thermal power station, investment and the profit level that will rise.
The double-deck parabola efficient heat-collecting of the big opening of the utility model solar energy optical-thermal slot type device, the advantage on wind resistance:
As shown in Figure 4, the heat collector steel structure support mainly receives blast, crushing by snow etc. except that the gravity that receives self when work.Blast ω k=β zμ sμ zω 0ω wherein kBe characteristi cvalue o fwindload (KN/M 2); β zWind pulse for height z place; μ sBuild coefficient for wind load; μ zHeight coefficient for blast; ω 0Be fundamental wind pressure.The structural shape factor of wind load μ of collector bracket sCan reduce through designing, and other coefficient can not change.Condenser is divided into inside and outside two parts in the utility model, and interior condenser is higher than outer condenser, and the distance of L=0.21m is arranged between the two, like this from directly over the wind that gets off can be as shown in Figure 4 direction flow out condenser.Thereby reduced the structural shape factor of wind load μ of heat collector s, and then reduced the influence of blast to collector bracket, can make the opening size of heat collector bigger, the length of single heat collector (two main backstop between) increases.
Like Fig. 2,3, shown in 4: following we build one 10 6m 2(10 3M*10 3M) advantage of the utility model is explained in slot type photo-thermal power station.
As shown in Figure 3, on the market parabola opening of heat collector mostly all at 5.77m, single heat collector (between two main backstops) length 12m.Being designed to of present the utility model heat collector: b 1=7.6m, L=0.21m be its clean unthreaded hole b=7.6m-0.21*2m=7.18m then, the length 24m of single heat collector.
Through calculating, can draw, building one 10 6m 2(10 3M*10 3M) slot type photo-thermal power station
In, the input ratio of tradition and this patent is like following table:
Figure 33764DEST_PATH_IMAGE002
Annotate: please refer to shown in Figure 2ly, calculate the quantity of main supporting bracket.
Can be known by last table: the cost with the power station of the heat collector construction of the utility model design can significantly reduce.
The operation principle of the utility model: the heat collector of the utility model is all under the control of power station Central Control Room; Worm speed reducer 9 meetings operation automatically under the control of the solar tracking system of Central Control Room; Rotate tripod girder 2, make the interior outside condenser 5,6 on the heat collector aim at the sun automatically.The light of outside condenser 5,6 reflections accumulates on the thermal-collecting tube 7 in making.Thereby the transmitting medium in the heating thermal-collecting tube 7 reaches a high temperature and is used for generating.From morning The sun came up fall to the dusk sun, the heat collector of the utility model all can be aimed at the sun all the time under the control of solar tracking system.

Claims (10)

1. the double-deck parabola efficient heat-collecting of the big opening of solar energy optical-thermal slot type device; It is characterized in that; This heat collector comprises tripod girder, several condenser unit and thermal-collecting tubes; Several condenser unit are fixedly mounted on the tripod girder side by side, and the optically focused focus of each condenser unit converges on the thermal-collecting tube; Wherein, the condenser unit comprises pair of outside condenser and the inboard condenser that is provided with separately, and the distance at interval constitutes gas channel between outside condenser and the inboard condenser.
2. heat collector as claimed in claim 1; It is characterized in that; Be symmetrically arranged with the said condenser of two rows unit along the left and right sides of said tripod girder length direction, all be arranged side by side several said condenser unit among each row along the length direction of said tripod girder.
3. heat collector as claimed in claim 2 is characterized in that, the said condenser of two rows is provided with between the unit separately, and separated therebetween distance constitutes gas channel.
4. heat collector as claimed in claim 2 is characterized in that, in a said condenser unit, the parabola focal length of the parabola focal distance ratio of said inboard condenser outside condenser is short, and two sections parabolic focus all drop on the said thermal-collecting tube; And for the adjacent end portion of said outside condenser and inboard condenser, the position of said inboard condenser abutting end is higher than the position of said outside condenser abutting end.
5. heat collector as claimed in claim 4; It is characterized in that; Said condenser unit is fixedly mounted on the parabolic type assembly, and the parabolic type assembly is installed in condenser and supports on the side lever, and condenser supports side lever and is arranged on the said tripod girder; Said tripod girder is arranged on the main backstop, and main backstop is installed on the ground through ground.
6. heat collector as claimed in claim 5 is characterized in that, said main backstop is that install on the ground through ground its lower end by the steel structure support of I-steel and square steel tube welding, and its upper end is welded with plain bearing housing or worm speed reducer seat.
7. heat collector as claimed in claim 5 is characterized in that, said tripod girder is that said tripod girder is provided with the thermal-collecting tube support by the main beam structure of square steel tube welding, and said thermal-collecting tube is arranged on the thermal-collecting tube support.
8. heat collector as claimed in claim 5; It is characterized in that; Said parabolic type assembly is arranged at intervals with inside and outside two sections installation portions according to the position relation of said outside condenser and inboard condenser; Said parabolic type assembly is the large-scale stamping parts that is stamped to form by mould, is welded with reinforcement on it.
9. heat collector as claimed in claim 7; It is characterized in that; The thermal-collecting tube support is to be welded by square steel tube, and said thermal-collecting tube then is used to receive the sunlight heat that said outside condenser and inboard condenser reflect back, and is filled with conduction oil or fused salt in the said thermal-collecting tube.
10. heat collector as claimed in claim 6 is characterized in that, the upper end of said main backstop is provided with worm speed reducer through said worm speed reducer seat; This worm speed reducer is a turbine and worm formula reducing gear; It does driving by stepper motor, and stepper motor turns round under the control of solar tracking system, the torque that the output through worm speed reducer produces; Order about said tripod girder and rotate, follow the tracks of the sun.
CN2011205143056U 2011-12-12 2011-12-12 Solar-energy optical-heating groove type large-opening double-layer parabola efficient heat collector Withdrawn - After Issue CN202419966U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393085A (en) * 2011-12-12 2012-03-28 中海阳新能源电力股份有限公司 Solar-optothermal-groove-type large-opening double-layer parabola high-efficiency collector
WO2014075411A1 (en) * 2012-11-17 2014-05-22 新疆尚孚新能源科技有限公司 Solar energy concentrator
CN107642913A (en) * 2017-10-27 2018-01-30 中新能清洁能源(南京)有限公司 The slot type photo-thermal heat collector of energy can be produced electricity
CN108375206A (en) * 2018-04-09 2018-08-07 河北珠峰仪器仪表设备有限公司 A kind of groove type solar connection system and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393085A (en) * 2011-12-12 2012-03-28 中海阳新能源电力股份有限公司 Solar-optothermal-groove-type large-opening double-layer parabola high-efficiency collector
WO2014075411A1 (en) * 2012-11-17 2014-05-22 新疆尚孚新能源科技有限公司 Solar energy concentrator
CN107642913A (en) * 2017-10-27 2018-01-30 中新能清洁能源(南京)有限公司 The slot type photo-thermal heat collector of energy can be produced electricity
CN108375206A (en) * 2018-04-09 2018-08-07 河北珠峰仪器仪表设备有限公司 A kind of groove type solar connection system and method
CN108375206B (en) * 2018-04-09 2023-08-04 河北珠峰仪器仪表设备有限公司 Trough type solar energy connection system and method thereof

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