WO2013083050A1 - Système de génération d'énergie thermique solaire - Google Patents

Système de génération d'énergie thermique solaire Download PDF

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Publication number
WO2013083050A1
WO2013083050A1 PCT/CN2012/085990 CN2012085990W WO2013083050A1 WO 2013083050 A1 WO2013083050 A1 WO 2013083050A1 CN 2012085990 W CN2012085990 W CN 2012085990W WO 2013083050 A1 WO2013083050 A1 WO 2013083050A1
Authority
WO
WIPO (PCT)
Prior art keywords
power generation
generation system
thermal power
solar thermal
collector
Prior art date
Application number
PCT/CN2012/085990
Other languages
English (en)
Chinese (zh)
Inventor
孙海翔
朱亮
Original Assignee
Sun Haixiang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Haixiang filed Critical Sun Haixiang
Publication of WO2013083050A1 publication Critical patent/WO2013083050A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/20—Cleaning; Removing snow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/48—Arrangements for moving or orienting solar heat collector modules for rotary movement with three or more rotation axes or with multiple degrees of freedom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/13—Transmissions
    • F24S2030/133—Transmissions in the form of flexible elements, e.g. belts, chains, ropes
    • 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
    • Y02E10/47—Mountings or tracking

Definitions

  • the present invention relates to the field of solar thermal power generation technology, and more particularly to a structure for providing a heat collector in a tower solar thermal power generation system.
  • solar energy CSP technology is considered to be one of the main reliances on human energy demand in the future due to its environmental friendliness and easy connection with existing power grids.
  • a typical solar thermal power generation system includes a mirror field in which a plurality of heliostats are provided for reflecting sunlight to a focus position of the mirror field.
  • a support tower is arranged in the mirror field for supporting the heat collector, so that the heat collector is located at the focus position of the mirror field, so as to receive the sunlight reflected by the heliostat, and convert the received sunlight into heat energy, and transmit it to the worker. Quality, driving power generation, generating electricity.
  • Industrial application grade solar thermal power generation systems generally include hundreds or even thousands of heliostats. In order to allow the sunlight reflected by these heliostats to reach the collector unimpeded, it is generally necessary to set the collectors in the mirror field. The middle distance is tens of meters or even hundreds of meters high. Those skilled in the art will appreciate that at such a high location, coupled with the complex structure of the collector itself and numerous auxiliary equipment, the installation and maintenance of the collector is complicated. And because the collector is located at the optical focus of the mirror field, the large amount of solar energy that is concentrated poses a serious threat to the safety of maintenance personnel.
  • the focus position with the highest light collection efficiency in the mirror field is different at different times of the day.
  • a technical solution has been proposed in which a plurality of collectors supported by the support tower are arranged in the mirror field, and different sets of heliostats in the mirror field are assigned to different sets in different time periods.
  • the heater reflects the sunlight.
  • the present invention proposes a novel solar thermal power generation system which can facilitate the installation and maintenance of the collector and improve the safety of the installation and maintenance personnel.
  • a solar thermal power generation system comprising a heliostat for reflecting and focusing sunlight and a heat collector for absorbing solar energy, the collector being disposed on the support device and capable of being opposite to the support device Move and / or rotate.
  • the collector is capable of absorbing heat at any position that can be rotated or moved to and from.
  • the supporting device has a suspension structure
  • the heat collector is disposed on the supporting device by suspension, and is movable and/or rotatable relative to the supporting device, including moving up and down and moving in the direction of the beam.
  • a wind deflector with an adjustable angle and a windshield area is installed beside the heat collector for reducing the influence of air flow on the heat absorption of the heat collector.
  • the supporting device comprises a bracket and a beam
  • the beam is a cantilever beam or a simply supported beam with respect to the bracket
  • the heat collector is mounted on the beam.
  • the beam is movable up and down with respect to the bracket;
  • the bracket is provided with a device for driving the beam to move up and down, and a driver for driving the device to move relative to the bracket; Tube or rail.
  • the beam is rotatable relative to the bracket about at least one axis;
  • the bracket is provided with a device for driving the beam to rotate, and a driver for driving the device to rotate relative to the bracket;
  • the supporting device may be a tilting column.
  • the heat collector is suspended on the inclined column and is movable along the inclined column.
  • the tilting column is rotatable about at least one axis.
  • the supporting device is an upright column.
  • the means for driving the collector to move up and down includes a motor, a winch driven by the motor, a wire rope connected to the winch and the heat collector, and a pulley unit.
  • the support device is provided with a diagonal beam or a stay cable for maintaining stability.
  • a high temperature protection structure is provided on the support device and/or other device adjacent to the heat collector.
  • the protective structure is a high temperature resistant coating or a high temperature resistant protective sheet.
  • the piping system of the solar thermal power generation system is provided with means for steering the pipeline; the means for deflecting the pipeline is a pipe joint or a bellows.
  • the support device is formed by a combination of a bracket and a beam, or a tilting column or a vertical column, and there is no support tower below the heat collector, so that the air is released. More heliostats can be placed on the ground to increase the reflection efficiency of the amount of solar energy in the mirror field.
  • the position of the collector in the mirror field can be moved, so that the collector can be different in one day.
  • the time period follows the spatial position with the highest light collection efficiency, thereby improving the solar light collection efficiency and simplifying the prior art heliostat control scheme.
  • the up and down movement of the heat collector relative to the supporting device can not only overcome the shortcomings of the prior art installation and maintenance work of the heat collector, but also improve the safety of the installation and maintenance work.
  • FIG. 1 is a heat collector and a supporting device thereof according to Embodiment 1 of the present invention
  • Figure 2 is a cross-sectional view of the collector support device of the first embodiment
  • Embodiment 2 of the present invention is a schematic diagram of Embodiment 2 of the present invention.
  • Embodiment 3 of the present invention is a schematic diagram of Embodiment 3 of the present invention.
  • FIG. 5 is a schematic view of Embodiment 4 of the present invention.
  • Figure 6 is a schematic view of Embodiment 5 of the present invention.
  • Figure 7 is a schematic view of Embodiment 6 of the present invention.
  • FIG. 8 is a schematic diagram of a specific application of the solar thermal power generation system according to the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 1 and Fig. 2 a structural view of a heat collector and a supporting device thereof in an embodiment of the solar thermal power generation system of the present invention is shown.
  • the bracket 13 is fixed to the ground, and the beam 6 is mounted on the bracket 13 such that one or both arms extend from the bracket toward the surrounding space to form a cantilever beam.
  • This embodiment shows the case of having two arms, and those skilled in the art will readily understand that there may be only one arm depending on the installed capacity of the system and other parameters.
  • Fig. 2 is a cross-sectional view showing the above-described collector supporting device for explaining the working principle of the supporting device.
  • the heat collector 13 is provided with a connecting device 12 for engaging and fixing with the beam 6, the heat collector 13
  • An adjustable direction windshield 16 is mounted on the side for reducing the effect of air flow on the heat absorption of the collector 13.
  • the beam 6 is set on the bracket 13 and can be moved up and down.
  • the beam 6 is connected to the 8-wire end of the wire rope, and the other end of the wire rope 8 is connected to the winch 1 disposed at the bottom of the bracket, and is driven by the winch 1 to realize the beam.
  • the up and down movement of 6 can be fixed by attaching a fixing bracket 11 underneath when it is not moving.
  • the heat collector 13 is connected with a wire rope 2, and the other end of the wire rope 9 is connected to a winch 1 disposed at the bottom of the bracket.
  • the winch 1 is driven by the motor 15, and the motor 15 can be controlled to realize the forward or reverse rotation of the winch 1.
  • the wire rope 2 9 lifts the heat collector 5 from the ground to the beam 6, or descends from the beam 6 to the ground for easy installation and maintenance.
  • the working fluid inlet 2 and the working fluid outlet 3 are used to connect the collector 5 and an external driving device, and the energy absorbed by the collector can be transmitted to the steam turbine for power generation.
  • the heliostat emits sunlight to the heat collector 5, and the collector 5 absorbs the sunlight energy and heats the working medium therein.
  • the working medium may be a gas for driving the steam turbine, and is heated in the heat collector 5 , follow the working fluid outlet 3 to the steam turbine, drive the steam turbine to work, and the working fluid after work is recycled to the collector and reheated along the working fluid inlet 2 .
  • Fig. 2 Also shown in Fig. 2 are pulleys 7 and 10 for wire rope guiding, flanges for line connection 4 and
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the beam 6 is in the form of a simply supported beam, which is supported on the brackets 13 at both ends.
  • a corresponding driving device 17 is mounted on the beam 6, so that the collector 5 can be easily moved longitudinally along the beam 6, so that when the beam 6 is stationary, the position of the collector 5 in the space can be adjusted longitudinally along the beam 6 to follow the point where the light collection efficiency is highest in the mirror field.
  • Embodiment 3 As shown in Fig. 4, a third embodiment of the solar thermal power generation system of the present invention is shown.
  • the bracket 13 is in the form of a vertical column
  • the beam 6 is in the form of a cantilever beam, which can be driven.
  • the device 17 rotates around the bracket 13 and moves up and down.
  • the heat collector 13 is suspended and mounted on the beam 6. Under the action of the hoist, it can move up and down with respect to the beam, and can stay in any position that can be rotated or moved to.
  • the piping system of the solar thermal power generation system is provided with a device for steering the pipe. This embodiment uses the pipe joint 23, and can also be realized by a bellows according to the site conditions.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • a fourth embodiment of the solar thermal power generation system of the present invention is shown.
  • the beam 6 is rotatable about the bracket 13, and an auxiliary bracket 18 is provided, corresponding to the auxiliary bracket 18.
  • a protruding platform 19 is disposed at a working height of the beam 6; one end of the beam 6 is fitted on the bracket 13 and the other end is supported on the protruding platform 19.
  • a sleeve that can be moved up and down can be provided on the outside of the bracket 13, and the beam 6 is connected to the sleeve. In this way, when the casing is driven up and down in a certain way, the beam can also move up and down with the casing.
  • the position of the collector in the mirror field can be adjusted in two dimensions, thereby more accurately tracking the point where the light collecting efficiency is highest, and improving the overall light collecting efficiency.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • FIG. 6 a fifth embodiment of the solar thermal power generation system of the present invention is shown.
  • This embodiment can be regarded as a modified tower solar thermal power generation system in which an upright support tower is Instead of the bracket with two inclined columns 20, the entire bracket is fixed with a stay cable 21 for stability.
  • the collector 5 when the collector 5 needs to be installed or repaired, it can be directly lowered from the working position on the inclined column 20 to the maintenance position, or can be tilted along the inclined column 20 to the maintenance position, to be installed or After the repair is completed, move back to the working position.
  • the solution is also effective in overcoming the defects of the inconvenience of installation and maintenance of the collector in the prior art, and improves the efficiency of solar energy collection in the mirror field.
  • a tilting column 20 is used to articulate with the rotating platform 25, and the hydraulic cylinder 24 is used. Supporting, and extending the length of the inclined column 20 by the extension of the hydraulic cylinder 24, combined with the lifting and lowering of the collector 5 itself, finally realizes the positional change of the collector 5.
  • FIG. 8 is a schematic diagram of a specific application of the solar thermal power generation system according to the present invention.
  • a plurality of heliostats 22 and collectors 5 are provided.
  • the bracket 13 of the present invention to cooperate with the mounting structure of the beam 6, it is no longer necessary to provide a collector tower in the mirror field, so that heliostats can be arranged under the collector, thereby improving the overall set of the mirror field. Light efficiency.
  • the collector 5 When maintenance or maintenance of one or some of the collectors 5 is required, the collector 5 can be lowered from the beam 6 to facilitate maintenance and assembly work. It is also possible to move the heat collector 5 longitudinally along the beam 6, so that the heat collector maintenance and assembly work position can be set more freely, thereby making the maintenance and assembly work easier.
  • the collector 5 can be moved longitudinally along the beam 6, and combined with the rotation of the beam 6 around the bracket 13, the position of the collector 5 can be more accurately tracked in the position of the light collecting efficiency in the mirror field, thereby improving Light collection efficiency.
  • a reinforcing structure such as a stay cable, a diagonal stay beam, or the like between the bracket and the ground may be provided.
  • a protective layer such as a high temperature resistant ceramic may be provided on the portion of the beam adjacent to the collector.
  • the collector is suspended from the inclined column of the bracket, so the high temperature resistant ceramic is also It should be placed on the inclined column accordingly to protect the tower arm from high temperature damage.
  • the bracket lacks a supporting structure and may become less stable. A fixed beam can then be placed between the two supports for supporting the support after the movable beam has been lowered.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

La présente invention concerne un système de génération d'énergie thermique solaire, comprenant un héliostat (22) servant à réfléchir et à focaliser la lumière du soleil, et un collecteur de chaleur (5) servant à absorber l'énergie de la lumière du soleil. Le collecteur de chaleur est agencé sur un dispositif de support, et peut être déplacé et/ou peut tourner par rapport au dispositif de support. Le dispositif de support peut être un support (13) à structure de traverse (6), une colonne oblique, ou une colonne dressée. Avec le système de génération d'énergie thermique solaire, le rendement de recueil de lumière du soleil peut être amélioré en déplaçant le collecteur de chaleur, l'assemblage ou l'entretien peuvent être réalisés plus commodément en déplaçant le collecteur de chaleur vers le haut et vers le bas et/ou en tournant le collecteur de chaleur, et l'héliostat peut être agencé sous le collecteur de chaleur, améliorant de ce fait le rendement de génération d'énergie globale de l'ensemble du champ de miroirs.
PCT/CN2012/085990 2011-12-06 2012-12-06 Système de génération d'énergie thermique solaire WO2013083050A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110400425.8 2011-12-06
CN201110400425.8A CN102437222B (zh) 2011-12-06 2011-12-06 一种太阳能光热发电系统

Publications (1)

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WO2013083050A1 true WO2013083050A1 (fr) 2013-06-13

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CN (1) CN102437222B (fr)
WO (1) WO2013083050A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102437222B (zh) * 2011-12-06 2015-05-20 深圳市联讯创新工场科技开发有限公司 一种太阳能光热发电系统
CN103968567B (zh) * 2013-02-01 2016-10-05 深圳市联讯创新工场科技开发有限公司 一种太阳能集热系统及其控制方法
CN103207625B (zh) * 2013-03-21 2017-06-20 深圳市联讯创新工场科技开发有限公司 一种定日镜
CN108731281B (zh) * 2018-06-27 2020-07-10 青岛中利诺信息技术有限公司 一种在室内更换加热管的太阳能热水器架
CN113606799B (zh) * 2021-07-27 2023-09-29 海南九生源科技开发有限公司 一种用于太阳能集热器高空安装装置及其安装方法
CN115468320A (zh) * 2022-10-13 2022-12-13 北京中热信息科技有限公司 一种新型点聚焦光热系统
CN115451589A (zh) * 2022-10-13 2022-12-09 北京中热信息科技有限公司 一种分布式点聚焦光热系统

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN2136968Y (zh) * 1992-04-30 1993-06-23 刘振中 聚焦形自动跟踪式太阳能热水器
US20050034751A1 (en) * 2003-07-10 2005-02-17 William Gross Solar concentrator array with individually adjustable elements
WO2011128082A2 (fr) * 2010-04-13 2011-10-20 Solar Power Group Gmbh Installation thermique solaire
CN102437222A (zh) * 2011-12-06 2012-05-02 深圳市联讯创新工场科技开发有限公司 一种太阳能光热发电系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191876A (en) * 1992-03-04 1993-03-09 Atchley Curtis L Rotatable solar collection system
CN2431532Y (zh) * 2000-07-20 2001-05-23 陈大民 太阳能热力装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2136968Y (zh) * 1992-04-30 1993-06-23 刘振中 聚焦形自动跟踪式太阳能热水器
US20050034751A1 (en) * 2003-07-10 2005-02-17 William Gross Solar concentrator array with individually adjustable elements
WO2011128082A2 (fr) * 2010-04-13 2011-10-20 Solar Power Group Gmbh Installation thermique solaire
CN102437222A (zh) * 2011-12-06 2012-05-02 深圳市联讯创新工场科技开发有限公司 一种太阳能光热发电系统

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CN102437222A (zh) 2012-05-02
CN102437222B (zh) 2015-05-20

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