CN101586887A - Method and device for trough solar heat collector to automatically track solar trace - Google Patents
Method and device for trough solar heat collector to automatically track solar trace Download PDFInfo
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- CN101586887A CN101586887A CNA2008102243784A CN200810224378A CN101586887A CN 101586887 A CN101586887 A CN 101586887A CN A2008102243784 A CNA2008102243784 A CN A2008102243784A CN 200810224378 A CN200810224378 A CN 200810224378A CN 101586887 A CN101586887 A CN 101586887A
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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
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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
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- 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
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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
- F24S2030/10—Special components
- F24S2030/11—Driving means
- F24S2030/115—Linear actuators, e.g. pneumatic cylinders
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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
- Y02E10/47—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 invention discloses a method and a device for a trough solar heat collector to automatically track solar trace. The method comprises the following steps of: arranging a fulcrum bushing on the trough solar heat collector, fixing the fulcrum bushing on a supporting shaft of a pedestal, arranging two crankshafts on the fulcrum bushing, controlling two hydraulic cylinders to push or pull the two crankshafts to rotate around the supporting shaft via a hydraulic control device through a solar trace sensor or a DPU controller, and adjusting postures of the trough solar heat collector. The invention adopts the solar trace sensor or the DPU controller to control a solar tracking system, so the trough solar heat collector can normally work in sunny days, can also normally work in cloudy days, and can automatically return to the initial state which begins to receive thermal energy of sunlight in the morning at night. The method and the device have the advantages of good universality, high tracking accuracy, good condensation, and high heat collection efficiency.
Description
Technical field
The present invention relates to the method and the device of a kind of automatic tracking method and device, particularly a kind of trough solar heat collector to automatically track solar trace.
Background technology
In solar heat power generation 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 dump or thermal-collecting tube are set what concentrate, heat-storage medium in heat dump 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.
Summary of the invention
The objective of the invention is to, a kind of method and device of trough solar heat collector to automatically track solar trace is provided, it can be without manual intervention, automatically finish tracking to the sun, the tracking accuracy height, optically focused is good, therefore also can improve the collecting efficiency of trough type solar heat-collector greatly.
The present invention realizes by following technical scheme.
The present invention is a kind of method of trough solar heat collector to automatically track solar trace, this method is that a fulcrum sleeve pipe is set on trough type solar heat-collector, the fulcrum sleeve pipe is fixed on the bolster of pedestal, two bent axles are set on the fulcrum sleeve pipe, by day the track sensor or the DPU controller promote or spur two bent axles to rotate through two hydraulic cylinders of hydraulic control device control around bolster, adjust the attitude of trough type solar heat-collector.
In the method for above-mentioned trough solar heat collector to automatically track solar trace, described day track sensor is used to have the attitude of the fine day control trough type solar heat-collector of the sun; The DPU controller is used to not have the attitude of the cloudy day control trough type solar heat-collector of the sun; Receiving position when the DPU controller also is used for controlling the trough type solar heat-collector self-return to The sun came up night.
In the method for aforesaid trough solar heat collector to automatically track solar trace, the distribution process unit that described DPU controller is a DCS system, 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, and with the actual position value of trough type solar heat-collector and 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.
In the method for aforesaid trough solar heat collector to automatically track solar trace, described sun elevation angle formula 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;
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.
In the method for aforesaid trough solar heat collector to automatically track solar trace, described trough type solar heat-collector is that place in the north-south, hydraulic cylinder control trough type solar heat-collector makes the receiving plane of trough type solar heat-collector face the sun all the time by to the east of the west rotation.
The device of a kind of trough solar heat collector to automatically track solar trace that makes up according to the method for aforesaid trough solar heat collector to automatically track solar trace, comprise the slot type speculum, the cross section of slot type speculum is an arc, 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 with day track sensor or DPU controller.
The present invention has following technical advantage:
1) can automatically, accurately follow the tracks of the sun's motion track, thereby improve the collecting efficiency of trough type solar heat-collector.
2) because the present invention adopts the control as solar tracking system of day track sensor or DPU controller, 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.
3) owing to adopted Hydraulic Power Transmission System, improved the tracking accuracy and the service life of trough type solar heat-collector.
4) adopt intelligent measuring and control device, be connected with hydraulic control device, be connected with the DPU controller through the DCS module, accept instruction and transmission field data by the means of communication by hardwire.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.
5) when meeting with bad weather, can a key order, fast the speculum of heat collector is adjusted to home, have very strong defencive function.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a schematic perspective view of the present invention;
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 present invention is described in further detail below in conjunction with embodiment, but not as limitation of the present invention.
A kind of method of trough solar heat collector to automatically track solar trace is as Fig. 1, Fig. 2 and shown in Figure 3.This method is that place in the north-south with trough type solar heat-collector when mounted, by to the east of the west rotation, makes the receiving plane of slot type speculum face the sun all the time by hydraulic cylinder 9 control trough type solar heat-collectors.Because the speculum 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 rotation of slot type speculum, 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, (a day track sensor adopts commercially available prod to day track sensor 11, can buy in market) or DPU controller 12 be electrically connected through intelligent measuring and control device 13 and hydraulic control device 10, two hydraulic cylinders of hydraulic control device 10 controls 9 promote or spur two bent axles 8 around bolster 6 rotations, 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, owing to there is not motional inertia, bent axle 8 has arrived motion dead point hydraulic cylinder 9 can't promote or spur bent axle 8, therefore two bent axles 8 are set, when a bent axle 8 is positioned at the dead-centre position, another bent axle 8 is not in the dead-centre position, can promote or spur another bent axle 8 with another hydraulic cylinder 9, make the trough type solar heat-collector can continual tracking solar motion.Of the present invention 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;
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.
The device of a kind of trough solar heat collector to automatically track solar trace that makes up according to the method for above-mentioned trough solar heat collector to automatically track solar trace, comprise slot type speculum 1, the cross section of slot type speculum 1 is an arc, to guarantee that sunlight light can focus on the thermal-collecting tube, 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 with day track sensor 11 or DPU controller 12.
Claims (8)
1, a kind of method of trough solar heat collector to automatically track solar trace, it is characterized in that: this method is that a fulcrum sleeve pipe is set on trough type solar heat-collector, the fulcrum sleeve pipe is fixed on the bolster of pedestal, two bent axles are set on the fulcrum sleeve pipe, by day the track sensor or the DPU controller promote or spur two bent axles to rotate through two hydraulic cylinders of hydraulic control device control around bolster, adjust the attitude of trough type solar heat-collector.
2, the method for trough solar heat collector to automatically track solar trace according to claim 1 is characterized in that: described day track sensor is used to have the attitude of the fine day control trough type solar heat-collector of the sun; The DPU controller is used to not have the attitude of the cloudy day control trough type solar heat-collector of the sun; Receiving position when the DPU controller also is used for controlling the trough type solar heat-collector self-return to The sun came up night.
3, the method for trough solar heat collector to automatically track solar trace according to claim 2, it is characterized in that: the distribution process unit that described DPU controller is a DCS system, 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, and with the actual position value of trough type solar heat-collector and 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.
4, the method for trough solar heat collector to automatically track solar trace according to claim 3 is characterized in that: described sun elevation angle formula 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;
δ: declination angle;
8＝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.
5, the method for trough solar heat collector to automatically track solar trace according to claim 4, it is characterized in that: described trough type solar heat-collector is that place in the north-south, hydraulic cylinder control trough type solar heat-collector makes the receiving plane of trough type solar heat-collector face the sun all the time by to the east of the west rotation.
6, the device of the trough solar heat collector to automatically track solar trace that makes up according to the method for the described trough solar heat collector to automatically track solar trace of the arbitrary claim of claim 1 to 5, it is characterized in that: comprise slot type speculum (1), the cross section of slot type speculum (1) is an arc, 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).
7, the device of trough solar heat collector to automatically track solar trace according to claim 6 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.
8, the device of trough solar heat collector to automatically track solar trace according to claim 7, it is characterized in that: described hydraulic cylinder (9) is connected with hydraulic control device (10) hydraulic pressure, and day track sensor (11) or DPU controller (12) are electrically connected by intelligent measuring and control device (13) and hydraulic pressure measure and control device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102243784A CN101586887A (en) | 2008-10-20 | 2008-10-20 | Method and device for trough solar heat collector to automatically track solar trace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102243784A CN101586887A (en) | 2008-10-20 | 2008-10-20 | Method and device for trough solar heat collector to automatically track solar trace |
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| CNA2008102243784A Pending CN101586887A (en) | 2008-10-20 | 2008-10-20 | Method and device for trough solar heat collector to automatically track solar trace |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269481A (en) * | 2011-05-16 | 2011-12-07 | 中国科学院广州能源研究所 | Solar energy collection focusing tracking driving mechanism |
| CN102322697A (en) * | 2011-06-10 | 2012-01-18 | 常州大学 | Dual-hydraulic-cylinder push-pull-type driver of trough solar thermal power generating condenser |
| CN102889690A (en) * | 2012-10-26 | 2013-01-23 | 皇明太阳能股份有限公司 | Tank type paraboloid solar concentrating collector system and array thereof |
| CN103104427A (en) * | 2013-01-10 | 2013-05-15 | 朱华 | Solar energy steam closed loop circulation power plant |
| CN103175320A (en) * | 2011-12-26 | 2013-06-26 | 国电龙源电力技术工程有限责任公司 | Space pipe frame type groove type solar thermal power generation heat collector element support |
| CN103234278A (en) * | 2013-05-29 | 2013-08-07 | 湖南远健光能科技有限公司 | Continuously heating system of solar boiler |
| CN103261810A (en) * | 2010-10-24 | 2013-08-21 | 张先锋 | Light-locking solar thermal collector and light-locking solar thermal collecting method |
| CN103328908A (en) * | 2010-12-23 | 2013-09-25 | 阿文戈亚太阳能新技术股份有限公司 | Mechanism for turning structural supports with oleohydraulic actuation |
| CN105890229A (en) * | 2016-03-24 | 2016-08-24 | 上海光热实业有限公司 | Small-sized distributed combined solar cooling heating and power system and application method thereof |
| CN105910155A (en) * | 2016-03-24 | 2016-08-31 | 上海光热实业有限公司 | All-weather solar heating system and using method thereof |
| CN105910329A (en) * | 2016-03-24 | 2016-08-31 | 上海光热实业有限公司 | Cooling and heating solar thermal energy utilization system with energy storage function and using method thereof |
| CN111351242A (en) * | 2020-04-22 | 2020-06-30 | 威海市奥帆环保设备有限公司 | Driving mechanism and method for trough type solar thermal collector |
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2008
- 2008-10-20 CN CNA2008102243784A patent/CN101586887A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103261810A (en) * | 2010-10-24 | 2013-08-21 | 张先锋 | Light-locking solar thermal collector and light-locking solar thermal collecting method |
| CN103328908A (en) * | 2010-12-23 | 2013-09-25 | 阿文戈亚太阳能新技术股份有限公司 | Mechanism for turning structural supports with oleohydraulic actuation |
| CN102269481A (en) * | 2011-05-16 | 2011-12-07 | 中国科学院广州能源研究所 | Solar energy collection focusing tracking driving mechanism |
| CN102322697A (en) * | 2011-06-10 | 2012-01-18 | 常州大学 | Dual-hydraulic-cylinder push-pull-type driver of trough solar thermal power generating condenser |
| CN103175320A (en) * | 2011-12-26 | 2013-06-26 | 国电龙源电力技术工程有限责任公司 | Space pipe frame type groove type solar thermal power generation heat collector element support |
| CN102889690A (en) * | 2012-10-26 | 2013-01-23 | 皇明太阳能股份有限公司 | Tank type paraboloid solar concentrating collector system and array thereof |
| CN103104427A (en) * | 2013-01-10 | 2013-05-15 | 朱华 | Solar energy steam closed loop circulation power plant |
| CN103104427B (en) * | 2013-01-10 | 2016-09-07 | 朱华 | Solar steam closed cycle power plant |
| CN103234278A (en) * | 2013-05-29 | 2013-08-07 | 湖南远健光能科技有限公司 | Continuously heating system of solar boiler |
| CN105890229A (en) * | 2016-03-24 | 2016-08-24 | 上海光热实业有限公司 | Small-sized distributed combined solar cooling heating and power system and application method thereof |
| CN105910155A (en) * | 2016-03-24 | 2016-08-31 | 上海光热实业有限公司 | All-weather solar heating system and using method thereof |
| CN105910329A (en) * | 2016-03-24 | 2016-08-31 | 上海光热实业有限公司 | Cooling and heating solar thermal energy utilization system with energy storage function and using method thereof |
| CN105890229B (en) * | 2016-03-24 | 2018-12-04 | 上海光热实业有限公司 | The cold small distributed combined supply system of solar generator and application method |
| CN105910329B (en) * | 2016-03-24 | 2019-01-18 | 上海能环实业有限公司 | The solar thermal energy of cold and heat combined supply with energy storage utilizes system and application method |
| CN111351242A (en) * | 2020-04-22 | 2020-06-30 | 威海市奥帆环保设备有限公司 | Driving mechanism and method for trough type solar thermal collector |
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