CN201318818Y - Automatic sun tracking device for trough-type solar collector - Google Patents

Automatic sun tracking device for trough-type solar collector Download PDF

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Publication number
CN201318818Y
CN201318818Y CNU2008201231554U CN200820123155U CN201318818Y CN 201318818 Y CN201318818 Y CN 201318818Y CN U2008201231554 U CNU2008201231554 U CN U2008201231554U CN 200820123155 U CN200820123155 U CN 200820123155U CN 201318818 Y CN201318818 Y CN 201318818Y
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China
Prior art keywords
trough
collector
solar heat
model
utility
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Expired - Lifetime
Application number
CNU2008201231554U
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Chinese (zh)
Inventor
李和平
黄湘
赵芫桦
章素华
王令怡
邵文远
姜怒涛
宋广
徐静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huadian Light New Energy Technology Co Ltd
China Huadian Engineering Group Co Ltd
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China Huadian Engineering Group Co Ltd
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Priority to CNU2008201231554U priority Critical patent/CN201318818Y/en
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Publication of CN201318818Y publication Critical patent/CN201318818Y/en
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    • 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
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • 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
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/13—Profile arrangements, e.g. trusses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • 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
    • F24S2030/11—Driving means
    • F24S2030/115—Linear actuators, e.g. pneumatic cylinders
    • 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

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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)

Abstract

The utility model discloses an automatic sun tracking device for a trough-type solar collector, which comprises a trough-type reflector (1) with an arc-shaped section, wherein, a sun tracking sensor (11) is arranged on the trough-type reflector (1), a heat collection pipe (2) is arranged on the focal point of the trough-type reflector (1), the heat collection pipe (2) is connected with the trough-type reflector (1) through a bracket (3), the trough-type reflector (1) is fixed on a trough bracket (4), a fulcrum sleeve (5) is arranged on the trough bracket (4), the fulcrum sleeve (5) is connected with a base frame (7) through a supporting axle (6), a crankshaft (8) is arranged on the fulcrum sleeve (5), and the crankshaft is connected with the base frame (7) through a hydraulic cylinder (9). The utility model can work normally whether in sunny days or in overcast days, and can automatically return to the initial state so as to be ready to absorb solar energy in the morning. The utility model has the characteristics of good universality, high tracking accuracy, good sunlight concentration performance and high heat collection efficiency.

Description

A kind of trough solar heat collector to automatically track solar trace device
Technical field
The utility model relates to the device of a kind of autotracker, particularly a kind of trough solar heat collector to automatically track solar trace.
Background technology
In solar power system, the luminous energy of the sun is passed through optically focused, it is concentrated on a bit or line on, a bit or on a line heat collector or thermal-collecting tube are set what concentrate, heat-storage medium in heat collector or the thermal-collecting tube is heated, by heat exchange the heat of heat-storage medium is passed to the acting medium again, medium drives steam turbine acting generating.In order to improve collecting efficiency, at first to improve the optically focused of reflector, to guarantee also that in addition reflector receives the sunlight face and faces the sun all the time, so just one of needs can be from the device of the motion tracking sun.In the prior art, have and adopt mechanical transmissioning technology, its tracking accuracy is not high, and device is long more service time, and tracking error is big more; Have and only adopt raytracing devic, when cloudy day or light are bad, groove type heat collector can not use; Adopt some simple control technologys or the like in addition, compare, certain limitation and gap are arranged at aspects such as versatility, automaticity, tracking accuracies with the present invention.
The utility model content
The purpose of this utility model is, a kind of device of trough solar heat collector to automatically track solar trace is provided, and it can be without manual intervention, automatically finish tracking to the sun, the tracking accuracy height, optically focused is good, can improve the collecting efficiency of trough type solar heat-collector greatly.
The technical solution of the utility model: it comprises that the cross section is the slot type speculum of arc, and the slot type speculum is provided with a day track sensor; The focus of slot type speculum is provided with thermal-collecting tube, and thermal-collecting tube is connected with the slot type speculum through support; The slot type speculum is fixed on the truss, and truss is provided with the fulcrum sleeve pipe, and the fulcrum sleeve pipe is connected with pedestal through bolster; The fulcrum sleeve pipe is provided with bent axle, and bent axle is connected with pedestal through hydraulic cylinder.
In the device of above-mentioned trough solar heat collector to automatically track solar trace, described fulcrum sleeve pipe is provided with two bent axles, and two bent axles are connected with pedestal through hydraulic cylinder respectively.
In the device of aforesaid trough solar heat collector to automatically track solar trace, described hydraulic cylinder is connected with hydraulic control device hydraulic pressure, and hydraulic control device is electrically connected by intelligent measuring and control device and day track sensor or DPU controller.
Compared with prior art, the utility model not only can operate as normal at the fine trough type solar heat-collector that the sun is arranged, and also can guarantee the trough type solar heat-collector operate as normal at the cloudy day of the no sun, night trough type solar heat-collector can automatically return to the original state that begins to receive sunlight heat energy morning.Can automatically, accurately follow the tracks of the sun's motion track, thereby improve the collecting efficiency of trough type solar heat-collector; Owing to adopted Hydraulic Power Transmission System, improved the tracking accuracy and the service life of trough type solar heat-collector.This device adopts intelligent measuring and control device, is connected with hydraulic control device by hardwire, is connected with the DPU controller through the DCS module by the means of communication, accepts instruction and transmission field data; This control model when applying to the control of large-scale groove type heat collector, both can have been saved a large amount of control cables, can guarantee the reliability of controlling again; When meeting with bad weather, can a key order, fast the speculum of heat collector is adjusted to home, have very strong defencive function.
The utility model versatility is good, the tracking accuracy height, and optically focused is good, the collecting efficiency height.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a schematic perspective view of the present utility model;
Fig. 3 is the partial enlarged drawing of A among Fig. 2.
Being labeled as in the accompanying drawing: 1-slot type speculum, 2-thermal-collecting tube, 3-support, 4-truss, 5-fulcrum sleeve pipe, 6-bolster, 7-pedestal, 8-bent axle, 9-hydraulic cylinder, 10-hydraulic control device, 11-day track sensor, 12-DPU controller, 13-intelligent measuring and control device.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment, but not as to restriction of the present utility model.
Embodiment of the present utility model.A kind of device of trough solar heat collector to automatically track solar trace is as Fig. 1, Fig. 2 and shown in Figure 3.Comprise that the cross section is the slot type speculum of arc, can focus on the thermal-collecting tube that slot type speculum 1 is provided with a day track sensor 11 to guarantee sunlight light; The focus of slot type speculum 1 is provided with thermal-collecting tube 2, and thermal-collecting tube 2 is connected with slot type speculum 1 through support 3; Slot type speculum 1 is fixed on the truss 4, and truss 4 is provided with fulcrum sleeve pipe 5, and fulcrum sleeve pipe 5 is connected with pedestal 7 through bolster 6; Fulcrum sleeve pipe 5 is provided with 8, two bent axles 8 of two bent axles and is connected with pedestal 7 through hydraulic cylinder 9 respectively.Hydraulic cylinder 9 is connected with hydraulic control device 10 hydraulic pressure, and hydraulic control device 10 is electrically connected by intelligent measuring and control device 13 and a day track sensor 11 (a day track sensor adopts the commercially available prod, can buy in market) or DPU controller 12.
The operation principle of the present utility model and the course of work
When the utility model is installed, be that place in the north-south, by to the east of the west rotation, make the receiving plane of trough type solar heat-collector face the sun all the time by hydraulic cylinder 9 control trough type solar heat-collectors with trough type solar heat-collector.Because the reflecting plate of trough type solar heat-collector is the curved slab of a strip, different with the heat collector of pot cover formula, aligning the solar time, only need to change the elevation angle of trough type solar heat-collector, and do not need to change simultaneously the azimuth, it is simpler than the heat collector of control pot cover formula therefore to control trough type solar heat-collector.In order to make the trough type solar heat-collector rotation, constantly change the elevation angle, a fulcrum sleeve pipe 5 is set on trough type solar heat-collector, trough type solar heat-collector serves as the axle rotation with fulcrum sleeve pipe 5 when rotated, fulcrum sleeve pipe 5 is fixed on the bolster 6 of pedestal 7, two bent axles 8 are set on fulcrum sleeve pipe 5, by day track sensor 11 or DPU controller 12 promote or spur two bent axles 8 around bolster 6 rotations through two hydraulic cylinders of hydraulic control device 10 control 9, adjust the attitude of trough type solar heat-collector, because it is very slow to follow the tracks of the movement velocity of daylight, if a bent axle 8 only is set, when bent axle 8 rotates to the dead-centre position, can't not promote or spur bent axle 8 owing to have motional inertia, bent axle 8 to arrive motion dead point hydraulic cylinder 9, therefore two bent axles 8 are set, when a bent axle 8 is positioned at the dead-centre position, another bent axle 8 is in the dead-centre position, can promote or spur another bent axle 8 with another hydraulic cylinder 9, makes the trough type solar heat-collector can continual tracking solar motion.Of the present utility model day track sensor 10 is mainly used in the attitude of the fine day control trough type solar heat-collector of the sun; DPU controller 12 is used to not have the attitude of the cloudy day control trough type solar heat-collector of the sun; By day, trough type solar heat-collector is by rotating to the east of the west, second day, trough type solar heat-collector still will be from the motion to the east of the west, so the DPU controller also is responsible for the receiving position when controlling the trough type solar heat-collector self-return to The sun came up night, be that second day tracking is got ready.The distribution process unit that described DPU controller 12 is DCS systems, this unit calculates the stroke of hydraulic cylinder automatically according to given sun elevation angle formula, for providing trough type solar heat-collector, hydraulic cylinder follows the tracks of the setting value of track of sun motion, also to coordinate the cooperation of two hydraulic cylinders simultaneously, when concrete the execution, need with the actual position value of trough type solar heat-collector constantly with setting value relatively, make the attitude of trough type solar heat-collector remain to accurate given position according to the stroke of comparative result by the regulator solution cylinder pressure.At the cloudy day that does not have the sun, day track sensor can't operate as normal, and at this moment the DPU controller is controlled trough type solar heat-collector according to sun elevation angle formula.
Angle in the formula of the sun elevation angle is 0 degree angle with the horizontal line of day outgoing direction;
Sun elevation angle formula is:
sin(h⊙)＝sin(δ)×sin(Φ)+cos(δ)×cos(Φ)×cos(τ)
In the formula:
H ⊙: sun altitude;
A: solar azimuth;
δ: declination angle;
δ＝23.45×sin(360×(284+n)/365)
N: day of year, the fate in a year, from January 1 to the fate that will calculate day, the serial number of date in then that promptly calculates day;
Φ: geographic latitude;
τ: solar hour angle, with the positive period of the day from 11 a.m. to 1 p.m, calculate τ=0.

Claims (3)

1, a kind of device of trough solar heat collector to automatically track solar trace is characterized in that: comprise that the cross section is the slot type speculum (1) of arc, slot type speculum (1) is provided with a day track sensor (11); The focus of slot type speculum (1) is provided with thermal-collecting tube (2), and thermal-collecting tube (2) is connected with slot type speculum (1) through support (3); Slot type speculum (1) is fixed on the truss (4), and truss (4) is provided with fulcrum sleeve pipe (5), and fulcrum sleeve pipe (5) is connected with pedestal (7) through bolster (6); Fulcrum sleeve pipe (5) is provided with bent axle (8), and bent axle (8) is connected with pedestal (7) through hydraulic cylinder (9).
2, the device of trough solar heat collector to automatically track solar trace according to claim 1 is characterized in that: described fulcrum sleeve pipe (5) is provided with two bent axles (8), and two bent axles (8) are connected with pedestal (7) through hydraulic cylinder (9) respectively.
3, the device of trough solar heat collector to automatically track solar trace according to claim 1 and 2, it is characterized in that: described hydraulic cylinder (9) is connected with hydraulic control device (10) hydraulic pressure, and hydraulic control device (10) is electrically connected by intelligent measuring and control device (13) and day track sensor (11) or DPU controller (12).
CNU2008201231554U 2008-10-20 2008-10-20 Automatic sun tracking device for trough-type solar collector Expired - Lifetime CN201318818Y (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011160286A1 (en) * 2010-06-22 2011-12-29 Sun Tao Solar energy utilization device and application method
WO2014019337A1 (en) * 2012-08-03 2014-02-06 大地太阳风（北京）能源技术有限公司 Solar radiation reflecting and focusing system under transparent roof
CN105444431A (en) * 2015-12-25 2016-03-30 天津滨海设备配套技术有限公司 Ancillary equipment for solar thermal electric power generation
CN105546844A (en) * 2015-12-25 2016-05-04 天津滨海光热集热技术有限公司 Double heat collection pipe solar energy photo-thermal power generating and heat collecting device
CN107152800A (en) * 2017-06-12 2017-09-12 天津滨海光热跟踪技术有限公司 A kind of high tracking accuracy big opening high temperature slot type fused salt heat collector
CN107166762A (en) * 2017-06-12 2017-09-15 天津滨海光热跟踪技术有限公司 A kind of big opening speculum collection hot loop
CN109237810A (en) * 2017-05-26 2019-01-18 天津滨海光热技术研究院有限公司 A kind of heat collector and its control method of slot type fused salt photo-thermal power generation
CN109458741A (en) * 2018-11-14 2019-03-12 徐州沃力能源科技有限公司 A kind of solar energy heating greasy filth device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011160286A1 (en) * 2010-06-22 2011-12-29 Sun Tao Solar energy utilization device and application method
WO2014019337A1 (en) * 2012-08-03 2014-02-06 大地太阳风（北京）能源技术有限公司 Solar radiation reflecting and focusing system under transparent roof
CN105444431A (en) * 2015-12-25 2016-03-30 天津滨海设备配套技术有限公司 Ancillary equipment for solar thermal electric power generation
CN105546844A (en) * 2015-12-25 2016-05-04 天津滨海光热集热技术有限公司 Double heat collection pipe solar energy photo-thermal power generating and heat collecting device
CN109237810A (en) * 2017-05-26 2019-01-18 天津滨海光热技术研究院有限公司 A kind of heat collector and its control method of slot type fused salt photo-thermal power generation
CN109237810B (en) * 2017-05-26 2024-01-26 天津滨海光热技术研究院有限公司 Trough type fused salt photo-thermal power generation heat collector and control method thereof
CN107152800A (en) * 2017-06-12 2017-09-12 天津滨海光热跟踪技术有限公司 A kind of high tracking accuracy big opening high temperature slot type fused salt heat collector
CN107166762A (en) * 2017-06-12 2017-09-15 天津滨海光热跟踪技术有限公司 A kind of big opening speculum collection hot loop
CN109458741A (en) * 2018-11-14 2019-03-12 徐州沃力能源科技有限公司 A kind of solar energy heating greasy filth device

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Owner name: BEIJING HUADIAN ZHONGGUANG NEW ENERGY TECHNOLOGY C

Effective date: 20130603

C41 Transfer of patent application or patent right or utility model
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Address after: 100035 Beijing City, Xicheng District Xizhimen Avenue 273 Huadian Engineering building B block 503

Patentee after: China Huadian Engineering (Group) Co., Ltd.

Patentee after: Beijing Huadian Zhongguang New Energy Technology Co., Ltd.

Address before: 91 South Gate, 100048 West Third Ring Road, Beijing, Haidian District

Patentee before: China Huadian Engineering (Group) Co., Ltd.

C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 100035 Beijing City, Xicheng District Xizhimen Avenue 273 Huadian Engineering building B block 503

Patentee after: CHINA HUADIAN ENGINEERING CO., LTD.

Patentee after: Beijing Huadian Zhongguang New Energy Technology Co., Ltd.

Address before: 100035 Beijing City, Xicheng District Xizhimen Avenue 273 Huadian Engineering building B block 503

Patentee before: China Huadian Engineering (Group) Co., Ltd.

Patentee before: Beijing Huadian Zhongguang New Energy Technology Co., Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 100035 Beijing City, Xicheng District Xizhimen Avenue 273 Huadian Engineering building B block 503

Co-patentee after: Huadian Light New Energy Technology Co Ltd

Patentee after: CHINA HUADIAN ENGINEERING CO., LTD.

Address before: 100035 Beijing City, Xicheng District Xizhimen Avenue 273 Huadian Engineering building B block 503

Co-patentee before: Beijing Huadian Zhongguang New Energy Technology Co., Ltd.

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CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20090930