CN107943114A - Heliostat, heliostat tracking driving device and tower solar-thermal generating system - Google Patents
Heliostat, heliostat tracking driving device and tower solar-thermal generating system Download PDFInfo
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- CN107943114A CN107943114A CN201711356118.8A CN201711356118A CN107943114A CN 107943114 A CN107943114 A CN 107943114A CN 201711356118 A CN201711356118 A CN 201711356118A CN 107943114 A CN107943114 A CN 107943114A
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- heliostat
- driving device
- turntable
- mirror holder
- hydraulic
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/20—Control of position or direction using feedback using a digital comparing device
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Abstract
The present invention relates to heliostat, heliostat tracking driving device and tower solar-thermal generating system.Wherein heliostat tracking driving device is included for turntable of the mirror holder around horizontal axis rolling assembling, the azimuth adjustment device for driving mirror holder to be rotated around vertical axis, turntable is equipped with for the hinged telescoping cylinder hinged seat in the cylinder body front end of telescoping cylinder, the azimuth adjustment device includes the gear ring or worm gear being rotatably arranged on turntable, gear ring or worm gear are equipped with the connecting portion for being used for being fixedly connected with the pedestal of heliostat, and the drive gear for being engaged with the gear ring or the worm screw engaged with the worm gear are additionally provided with turntable.It need not be in addition telescoping cylinder sets telescoping cylinder base using the above scheme, the centre-of gravity shift of heliostat can be avoided, readily satisfy the requirement of the rigidity of structure, compact-sized, cost is low, and can realize modularization.
Description
Technical field
The present invention relates to heliostat, heliostat tracking driving device and tower solar-thermal generating system.
Background technology
Device of solar generating is deep at present concerned, and common device of solar generating is sent out using the photovoltaic of photovoltaic panel
Electric installation, the disc type solar energy thermal electric generator using dish-style reflecting plate and the tower solar-thermal generating system using heliostat.
Wherein using heliostat tower solar-thermal generating system basic principle as shown in Figure 1, be utilize settled date lens group in
The light reflection that sends the sun 102 of each heliostat 101 focus in the heat build-up mechanism 104 at the top of thermal tower 103, due to the sun
102 on high in position be constantly mobile, also the moment is all changing the irradiating angle of sunlight, therefore heliostat 101 needs
Sunlight is set to be emitted after reflection with certain direction into line trace on the sun by the rotation of speculum, thus can be real
A large amount of aggregations of existing solar energy, change the shortcomings that solar radiation energy-flux density is low.Due to settled date lens group be remote reflection with
Track, therefore, any minor shifts of heliostat, which are rocked, can all influence heliostat efficiency, the lighter cause aggregation hot spot blurred edges and
Cause aggregation loss increase, severe one will make hot spot rock disengaging target, and ultimately result in aggregation temperature and significantly decline, when serious
Solar energy acquisition work can be caused not carry out, while the local temperature of heat build-up mechanism can cause thermal expansion difference and then cause to gather
Heat engine structure aging, therefore the tracking transmission of heliostat must reach the required precision of high-accuracy transmission.Also just because of above-mentioned original
Cause, the cost of heliostat tends to take up more than the 50% of a whole set of tower solar-thermal generating system, and the cost of heliostat often becomes
The primary factor that investor considers.
General heliostat be by speculum, the mirror holder for installing speculum, the pedestal for installing mirror holder, for driving
The composition such as the tracking and driving system of index glass frame action and the heliostat control unit for controlling tracking and driving system.Such as apply
Publication No. is the heliostat disclosed in the Chinese patent application of 102575875 A of CN, including cylinder, the branch that is arranged on cylinder
Support frame frame and setting are equipped with speculum on the support frame, and wherein support frame forms mirror holder.Tracking and driving system includes being used for
Make the azimuth adjustment device and filled for adjusting the elevation angle that mirror holder is overturn around horizontal axis that mirror holder is rotated around vertical axis
Put（That is pitch angle regulating device）.Cylinder includes top cylinder and lower part cylinder, and azimuth adjustment device includes and top cylinder
Lower end connection worm screw, the motor that is arranged on the cylinder of lower part and the worm screw with the output axis connection of motor, motor during work
Worm screw rotation is driven, worm screw drives top cylinder and mirror holder to be rotated around vertical axis by worm screw, and top cylinder forms turntable, under
Portion's cylinder forms pedestal.Pitch angle regulating device includes the telescoping cylinder being hinged between mirror holder and top cylinder, and telescoping cylinder stretches
When the mirror holder that is hinged on the cylinder of top can be driven to be overturn around horizontal axis.
In use, azimuth adjustment device and pitch angle regulating device drive mirror holder and reflection under control of the control system
Mirror rotates.But in order to ensure the pitching scope of mirror holder, the size of the telescoping cylinder in above-mentioned patent needs to set longer, stretches
The output terminal of contracting cylinder is hinged on mirror holder, and the cylinder body front end of telescoping cylinder is hinged on the cylinder of top；Meanwhile in above-mentioned patent
Motor is arranged on the power box outside protrusion post body, in order to avoid the cylinder body and lower post of telescoping cylinder during azimuth adjustment
Power box on body is interfered, and the telescoping cylinder base of overhanging form is additionally provided with the cylinder of top, can so cause the center of gravity of heliostat
Offset, and in order to ensure system stability, said structure is very high to the rigidity requirement of telescoping cylinder base, adds and is manufactured into
This.
The content of the invention
It is an object of the present invention to provide a kind of heliostat to track driving device, to solve existing tracking driving device
In order to avoid centre-of gravity shift caused by the interference of pitch angle regulating device and azimuth adjustment device, it is of high cost the problem of.This hair
Bright other purpose is to provide a kind of heliostat using above-mentioned tracking driving device and the tower using above-mentioned tracking driving device
Formula solar-thermal generating system.
To achieve the above object, the technical solution of heliostat tracking driving device use is in the present invention：
1. heliostat of scheme tracks driving device, including for mirror holder around the turntable of horizontal axis rolling assembling, for driving mirror holder
The azimuth adjustment device rotated around vertical axis, turntable is equipped with to be hinged for the hinged telescoping cylinder in the cylinder body front end of telescoping cylinder
Seat, the azimuth adjustment device include being rotatably arranged on gear ring or worm gear on turntable, gear ring or worm gear be equipped be used for
The connecting portion that the pedestal of heliostat is fixedly connected, be additionally provided with turntable drive gear for being engaged with the gear ring or with it is described
The worm screw of worm gear engagement.
Beneficial effect：The present invention use above-mentioned technical proposal, when gear ring or worm gear use and heliostat pedestal connection, and
Drive gear or worm screw are arranged on turntable can be with turntable synchronization action, therefore azimuth adjustment device is being moved with telescoping cylinder
When be not in interference situation, compared with prior art, it is not necessary in addition telescoping cylinder base is set for telescoping cylinder, can be avoided
The centre-of gravity shift of heliostat, readily satisfies the requirement of the rigidity of structure, and compact-sized, cost is low, and can realize modularization.
Heliostat tracking driving device of the scheme 2. according to scheme 1, the azimuth adjustment device further include hydraulic pressure
Motor, the drive gear or worm screw are by fluid motor-driven.
Beneficial effect：It is compact using hydraulic type driving structure, easy to flexible arrangement, and overload protection easy to implement and
Slow down abrasion.
Heliostat tracking driving device of the scheme 3. according to scheme 2, the turntable, which is equipped with, to be used to drive hydraulic pressure horse
Up to the hydraulic station of action.
Beneficial effect：The hydraulic station of hydraulic system, which is set directly on turntable, can avoid fluid pressure line from turning across opposite
Dynamic component, can be easy to pipeline to lay, while also allow for realizing modular assembly.
Heliostat tracking driving device of the scheme 4. according to scheme 3, the hydraulic motor are equipped with what is be evenly distributed
Three, the telescoping cylinder hinged seat is disposed therein between two hydraulic motors in circumferential direction, and the remote of the turntable stretches
The side of contracting cylinder hinged seat is equipped with the mirror holder hinged seat around horizontal axis rolling assembling for mirror holder.
Beneficial effect：Above-mentioned arrangement can the quality of balanced turntable everywhere, be conducive to improve robust motion, at the same time
More space can be reserved and realize that dismounting is safeguarded, appearance looks elegant.
Heliostat tracking driving device of the scheme 5. according to scheme 4, the mirror holder hinged seat is equipped with spaced apart
Two, hydraulic station is arranged between two mirror holder hinged seats.
Heliostat tracking driving device of the scheme 6. according to any one of scheme 2-5, the hydraulic station include
Accumulator.
Beneficial effect：Set accumulator to avoid the continuous firing of hydraulic pump, avoid shaking caused by hydraulic station action
The precision of dynamic influence system, while be conducive to prolong the service life.
Heliostat tracking driving device of the scheme 7. according to scheme 6, the hydraulic pump overhang and are fixed in fuel tank
On side wall.
Heliostat tracking driving device of the scheme 8. according to any one of scheme 2-5, the main body of the turntable
For circular plate body, the edge of circular plate body is evenly equipped with the motor mount of the circular plate body of protrusion, and the hydraulic motor is with axis
Vertical mode is fixed on motor mount.
Beneficial effect：The motor mount of above-mentioned form can reduce turntable diameter, alleviator weight, easy to hydraulic pressure horse
The installation reached is safeguarded.
Heliostat tracking driving device of the scheme 9. according to any one of scheme 2-5, the hydraulic motor are set
There are more than two be circumferentially distributed, each hydraulic motor is connected in parallel on same control valve.
Beneficial effect：Since gear drive belongs to positive drive, as long as wherein any one hydraulic motor operating, remaining two
Platform hydraulic motor will passively start operating when gear positive drive, and after two hydraulic motors passively start at this time
It can work normally, aid in an active hydraulic motor to drive heliostat to rotate at the same time equivalent to an at least auxiliary hydraulic motor
Gear carries out accurate and stable transmission work, therefore is not in asynchronous existing during three fluid motor-driven pinion drives
As, it is not necessary to outside increases any synchronous valve and synchronizes adjusting to three hydraulic motors, it is not required that to each hydraulic pressure horse
Up to the high-accuracy controlled motion of low speed is all carried out, manufacture cost is greatly reduced, and corresponding maintenance cost is greatly reduced.Together
When, compared with using motor driving, long lifespan small using hydraulic motor, startup impact is small, can meet low speed well
Large torque job requirements.
Heliostat tracking driving device of the scheme 10. according to scheme 9, the control valve is to be connected with Digital motor
Digital servo valve.
Beneficial effect：Control accuracy can be improved using digital servo valve, further improve heliostat tracking driving device
Driving precision.
The technical solution of heliostat use is in the present invention：
1. heliostat of scheme, including pedestal and the speculum that is arranged on pedestal, speculum include mirror holder, pedestal and mirror holder it
Between be equipped with tracking driving device, tracking driving device include for mirror holder around the turntable of horizontal axis rolling assembling, for driving mirror
The azimuth adjustment device that frame is rotated around vertical axis, turntable is equipped with to be hinged for the hinged telescoping cylinder in the cylinder body front end of telescoping cylinder
Seat, the azimuth adjustment device include being rotatably arranged on gear ring or worm gear on turntable, gear ring or worm gear be equipped be used for
The connecting portion that the pedestal of heliostat is fixedly connected, be additionally provided with turntable drive gear for being engaged with the gear ring or with it is described
The worm screw of worm gear engagement.
Heliostat of the scheme 2. according to scheme 1, the azimuth adjustment device further include hydraulic motor, the drive
Moving gear or worm screw are by fluid motor-driven.
Heliostat of the scheme 3. according to scheme 2, the turntable are equipped with the hydraulic pressure for being used for driving hydraulic motor to act
Stand.
Heliostat of the scheme 4. according to scheme 3, the hydraulic motor is equipped with three be evenly distributed, described to stretch
Contracting cylinder hinged seat is disposed therein between two hydraulic motors in circumferential direction, the remote telescoping cylinder hinged seat of the turntable
Side is equipped with the mirror holder hinged seat around horizontal axis rolling assembling for mirror holder.
Heliostat of the scheme 5. according to scheme 4, the mirror holder hinged seat are equipped with spaced apart two, hydraulic station
It is arranged between two mirror holder hinged seats.
Heliostat of the scheme 6. according to any one of scheme 2-5, the hydraulic station include accumulator.
Heliostat of the scheme 7. according to scheme 6, the hydraulic pump overhang and are fixed on the side wall of fuel tank.
Heliostat of the scheme 8. according to any one of scheme 2-5, the main body of the turntable is circular plate body, round
The edge of shape plate body is evenly equipped with the motor mount of the circular plate body of protrusion, and the hydraulic motor is fixed in a manner of axis vertical
On motor mount.
Heliostat of the scheme 9. according to any one of scheme 2-5, the hydraulic motor, which is equipped with, to be circumferentially distributed
More than two, each hydraulic motor is connected in parallel on same control valve.
Heliostat of the scheme 10. according to scheme 9, the control valve are the digital servo valve for being connected with Digital motor.
The technical solution of tower solar-thermal generating system use is in the present invention：
1. tower solar-thermal generating system of scheme, including collection thermal tower and the heliostat around collection thermal tower setting, the heliostat include
Pedestal and the speculum being arranged on pedestal, speculum include mirror holder, and tracking driving device, tracking are equipped between pedestal and mirror holder
Driving device is included for mirror holder around the turntable of horizontal axis rolling assembling, for driving mirror holder around the azimuth that vertical axis rotates
Regulating device, turntable are equipped with for the hinged telescoping cylinder hinged seat in the cylinder body front end of telescoping cylinder, the azimuth adjustment device bag
The gear ring or worm gear being rotatably arranged on turntable are included, gear ring or worm gear are equipped with the company for being used for being fixedly connected with the pedestal of heliostat
Socket part, is additionally provided with the drive gear for being engaged with the gear ring or the worm screw engaged with the worm gear on turntable.
Tower solar-thermal generating system of the scheme 2. according to scheme 1, the azimuth adjustment device further include hydraulic pressure horse
Reach, the drive gear or worm screw are by fluid motor-driven.
Tower solar-thermal generating system of the scheme 3. according to scheme 2, the turntable, which is equipped with, to be used to drive hydraulic motor
The hydraulic station of action.
Tower solar-thermal generating system of the scheme 4. according to scheme 3, the hydraulic motor are equipped with three be evenly distributed
Only, the telescoping cylinder hinged seat is disposed therein between two hydraulic motors in circumferential direction, and the remote of the turntable stretches
The side of cylinder hinged seat is equipped with the mirror holder hinged seat around horizontal axis rolling assembling for mirror holder.
Tower solar-thermal generating system of the scheme 5. according to scheme 4, the mirror holder hinged seat are equipped with spaced apart two
Only, hydraulic station is arranged between two mirror holder hinged seats.
Tower solar-thermal generating system of the scheme 6. according to any one of scheme 2-5, the hydraulic station include storing
Can device.
Tower solar-thermal generating system of the scheme 7. according to scheme 6, the hydraulic pump overhang and are fixed in the side of fuel tank
On wall.
Tower solar-thermal generating system of the scheme 8. according to any one of scheme 2-5, the main body of the turntable are
Circular plate body, the edge of circular plate body are evenly equipped with the motor mount of the circular plate body of protrusion, and the hydraulic motor is erected with axis
Straight mode is fixed on motor mount.
Tower solar-thermal generating system of the scheme 9. according to any one of scheme 2-5, the hydraulic motor are equipped with
More than two be circumferentially distributed, each hydraulic motor is connected in parallel on same control valve.
Tower solar-thermal generating system of the scheme 10. according to scheme 9, the control valve are the number for being connected with Digital motor
Word servo valve.
Brief description of the drawings
Fig. 1 is the basic principle schematic using the tower solar-thermal generating system of heliostat；
Fig. 2 is one embodiment stereogram one of heliostat tracking driving device in the present invention；
Fig. 3 is one embodiment stereogram two of heliostat tracking driving device in the present invention；
Fig. 4 is the front view of one embodiment of heliostat tracking driving device in the present invention；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the right view of Fig. 4；
Fig. 7 is the sectional view of Fig. 4；
Fig. 8 is the hydraulic system principle figure of heliostat tracking driving device.
Each reference numeral is corresponding entitled in figure：1- turntables, turn edge under 2-, the horizontal flangings of 3-, 4- sealing rings, 5- mirror holders
Hinged seat, 6- telescoping cylinder hinged seats, 7- hydraulic motors, 8- control valves, 9- fuel tanks, 10- hydraulic pumps, 11- accumulators, 13- hydraulic pressure
Cylinder, 14- Numeric hydraulic cylinder motors, 15- turntable bearing inner rings, 16- turntable bearings outer ring, 17- rolling elements, 18- threaded holes, 19-
Mounting base, 20- cylinders, 21- flange in the bottom, 22- top flanges, 23- motor mounts, 24- Planetary drive gears, 25- brakings
Axis, 26- liquid braking devices, 27- Digital motors.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
One embodiment of heliostat tracking driving device is that one kind uses hydraulic pressure system as shown in Fig. 2 ~ Fig. 8 in the present invention
The tracking driving device of system, includes the turntable 1 that circular plate body is formed, and the body rim of turntable 1, which is equipped with down, turns edge 2, forms cover body
Structure.The top surface of turntable 1 be equipped with two only for mirror holder around horizontal axis rolling assembling mirror holder hinged seat 5, two only for telescoping cylinder
Hinged telescoping cylinder hinged seat 6 and three hydraulic motors 7, three hydraulic motors 7 are evenly distributed and are connected in parallel same
On control valve 8.Telescoping cylinder hinged seat 6 is located at the position between two hydraulic motors 7 in the left side of turntable 1 in the circumferential, two
Mirror holder hinged seat 5 is located at the right side of turntable 1, and along vertical with the table top of turntable 1 and by the symmetrical cloth of plane at 1 center of turntable
Put.Hydraulic station is equipped between two mirror holder hinged seats 5, hydraulic station includes fuel tank 9, overhang the liquid being fixed on the side wall of fuel tank 9
Press pump 10 and the accumulator 11 being connected with hydraulic pump 10.
Above-mentioned telescoping cylinder uses Numeric hydraulic cylinder, including hydraulic cylinder 13 and the Numeric hydraulic cylinder horse for setting 13 rear end of hydraulic cylinder
Up to 14, Numeric hydraulic cylinder motor 14 is used to make the control valve of hydraulic cylinder 13 realize the function of digital servo valve, passes through digital hydraulic
Cylinder motor 14 realizes the high accuracy output of hydraulic cylinder 13.Digital servo valve is the prior art, such as application publication number is
Digital servo valve disclosed in the Chinese patent application of CN107247467A.In order to ensure the pitching scope of mirror holder, telescoping cylinder
Size needs to set longer, therefore the cylinder body front end of hydraulic cylinder 13 is hinged on telescoping cylinder hinged seat 6, the rear end part of cylinder body
Overhang below the horizontal rotation axis of mirror holder.In use, the telescopic end of telescoping cylinder is hinged on mirror holder, the front end of cylinder body is hinged
On telescoping cylinder hinged seat 6, telescoping cylinder provides power by hydraulic station, and telescopic band index glass frame is around level under control of the control system
Axis is overturn, and realizes that the pitch angle of speculum is adjusted.Above-mentioned digital servo valve is that rotation formula is converted to direct acting, and then is driven
Spool direct acting, in other embodiments, can also be by the control valve of other forms, and output accuracy disclosure satisfy that heliostat works
Demand, for example with the servo valve that spool direct acting is directly driven by direct acting form.
Heliostat tracking driving device further includes the azimuth adjustment device for driving mirror holder to be overturn around vertical axis.Side
Parallactic angle regulating device includes the turntable bearing inner ring 15 on the lower face for the main body for being bolted on turntable 1, turntable bearing
The radial outside of inner ring 15 is coaxially arranged with turntable bearing outer ring 16, and turntable bearing outer ring 16 passes through rolling with turntable bearing inner ring 15
Kinetoplast 17 is rotatably assorted, and forms Tumbler disc bearing structure so that turntable bearing outer ring 16 can be around vertical axis relative to 1 turn of turntable
It is dynamic.The radial outside of turntable bearing outer ring 16 is toothed around, and forms gear ring.It is circumferentially equal on the lower face of turntable bearing outer ring 16
Threaded hole 18 is furnished with, threaded hole 18 forms the connecting portion for being used for being fixedly connected with the pedestal of heliostat.Heliostat tracking driving dress
Put the mounting base 19 further included for making the connecting portion on turntable bearing outer ring 16 be fixedly connected with the pedestal of heliostat, mounting base
19 top flanges 22 for including cylinder 20, being arranged on the flange in the bottom 21 of 20 bottom of cylinder and being arranged on the top of cylinder 20, top
Flange 22 is fixed by screws in threaded hole 18.Cylinder 20 is up big and down small truncated cone-shaped structure, top flange 22, bottom method
The reinforcing rib of right-angled trapezium is equipped between orchid 21 and cylinder 20, ensures that while structural strength weight can be mitigated.In other realities
To apply in example, turntable bearing outer ring 16 can also be fixedly connected with the pedestal of heliostat by other means, such as directly by turntable
Bearing outer ring 16 is fixed on the pedestal of heliostat.2 are turned edge under turntable 1 with the horizontal flanging 3 positioned at bottom, mounting base 19
Top flange 22 outer circumferential surface and horizontal flanging 3 between be equipped with sealing ring 4, sealing ring 4 uses dual-lip framework oil seal, is used for
Realize the sealing inside cover body, avoid sand and dust, rainwater of outdoor environment etc. from entering in cover body and shadow is caused to gear and bearing arrangement
Ring, improve reliability and service life.
The edge of turntable 1 is evenly equipped with the motor mount 23 of the circular plate body of protrusion, and three hydraulic motors 7 are respectively with axis
Vertical mode is fixed by screws in the top of corresponding motor mount 23.Lead to respectively at each hydraulic motor 7 on turntable 1
Cross bearing block and be rotatably equipped with Planetary drive gear 24, output shaft of the Planetary drive gear 24 directly with hydraulic motor 7 passes through flower
Bond structure connects.The lower end of Planetary drive gear 24 is equipped with brake axle 25, and the lower section of turntable 1 is fixed with and hydraulic motor 7, planet
The coaxially arranged liquid braking device 26 of drive gear 24, liquid braking device 26 can use liquid braking device of the prior art,
The brake(-holder) block rotated synchronously with Planetary drive gear 24 is clamped by brake lining and realizes braking, Planetary drive gear 24 can be carried out
It is locked, ensure when turntable 1 rotate in place reliably holding position.Numeral is further fixed on below the brake of telescoping cylinder offside
Motor 27, the effect of Digital motor 27 is similar with Numeric hydraulic cylinder motor 14, and the control valve 8 of hydraulic motor 7 can be made to realize number
The function of word servo valve so that hydraulic motor 7 becomes digital hydraulic motor, and the height of hydraulic motor 7 is realized by Digital motor 27
Precision exports.Since gear drive belongs to positive drive, as long as wherein any one hydraulic motor 7 operates, remaining two hydraulic pressure
Motor 7 will passively start operating when gear positive drive, and after two hydraulic motors 7 passively start at this time
Normal work, equivalent to two auxiliary hydraulic motors 7 aid in an active hydraulic motor 7 to drive traffic cycle bearing outer ring 16 at the same time
Accurate and stable transmission work is carried out, therefore is not in asynchrony phenomenon during three 7 driving pinion of hydraulic motor transmissions,
It exterior need not increase any synchronous valve and adjusting is synchronized to three hydraulic motors 7, it is not required that respectively to each hydraulic motor 7
The high-accuracy control of low speed is carried out, manufacture cost is greatly reduced, and corresponding maintenance cost is greatly reduced.
In solar-thermal generating system, the common tracking control of heliostat has：Mechanical course, hydraulic control.Machinery passes
Flowing mode arrangement is dumb, it is necessary to by bulky power source on heliostat, is not easy to install and safeguards；Because arrangement is not
Flexibly, so each action is required for independent power source, the complexity and installed power of system are added；It can not achieve and be
The overload protection of system, element is easy to wear, causes working life short.And conventional hydraulic opened loop control fluctuation of service, optically focused positioning
Higher precision is not reached, collection efficiency is low；Transmission mechanism is there are cumulative errors, and itself can not be eliminated, it is necessary to periodically rectify
Just.It is every to be designed with open-loop gain tune all the way meanwhile in traditional hydraulic pressure closed-loop control, hydraulic cylinder is controlled using servo valve
Whole, feedback oscillator adjustment, zero-bit adjustment and input are adjusted with feedback phase, and have ammeter to show the electric current shape by servo valve
State；It is unstable to there is the easy vibration of temperature drift, null offset, system of abrasion and servo valve etc. in its internal tiny jet hole of servo valve
Factor, long-time service need adjust systematic parameter, to ensure the normal operation of system；When cloudy or rainy days, photo-sensitive cell
Sunlight is can't accept in slightly long period, the control of tracking system may be caused to fail, or even cause the malfunction of executing agency
Make.
However, in the present invention heliostat tracking driving device azimuth adjustment device by digital servo valve, feedback mechanism,
Hydraulic motor is integrated as an entirety, and pitch angle regulating device is using digital servo valve, feedback mechanism, telescoping cylinder as one
A entirety is integrated, and valve port opening is automatically adjusted by internal reponse system completely, without extraneous intervention.Hydraulic pressure system
System three key elements of control：Direction, position, speed, the direction of rotation of stepper motor determine Numeric hydraulic cylinder or digital hydraulic horse
The direction reached；Number of pulses determines Numeric hydraulic cylinder or the stroke of digital hydraulic motor；Send pulse frequency and determine numeral
The speed of hydraulic cylinder or digital hydraulic motor.Digital hydraulic system has following advantage：1st, high antipollution.Do not have to the cleannes of fluid
There is strict demand, or even hydraulic oil is contaminated, will not cause the precision of system reduces, and will not more cause serious malfunction
Even accident；2nd, kinetic characteristic fully digitalization.Speed, stroke and electric pulse have direct correspondence, as long as controlling
Electric pulse, just can simply realize that control requires；3rd, the operation of Numeric hydraulic cylinder or digital hydraulic motor is from load change
Influence；4th, free of losses remote control performs, and can realize multiple digital hydraulic cylinder or multiple digital hydraulic motor high-precise synchronization or collaboration
Job control.
It is complete using Numeric hydraulic cylinder and digital hydraulic motor tracing control heliostat, the azimuth of heliostat and pitch angle
Realize vector quantization and digitlization.Each pulse corresponds to fixed Numeric hydraulic cylinder or digital hydraulic motor displacement, it is only necessary to control electricity
Pulse signal is the impulse stroke and speed of controllable Numeric hydraulic cylinder or digital hydraulic motor.When impulse stroke displacement can count
Word quantifies, and cooperating for multiple digital hydraulic cylinder or digital hydraulic motor only needs to build on each movement locus progress model
Vertical, then each Numeric hydraulic cylinder or digital hydraulic motor complete the impulse stroke each set within the same time.Together
When, digital hydraulic system can realize remote network control system, since using Digital Transmission, there is no distortion, and also there is no logical
Obstacle on communication interface, especially Numeric hydraulic cylinder or digital hydraulic motor can automatically form speed closed loop and position closed loop, keep away
Time lag problem of the SERVO CONTROL in remote network control is opened.
During work, digital hydraulic motor acts the azimuth adjustment for realizing heliostat, and the settled date is realized in Numeric hydraulic cylinder action
The pitch regulation of mirror, meets the demand for control of heliostat.Due to the movable member of whole dynamical system be arranged on turntable 1 with
1 synchronization action of turntable, therefore be not in situation about interfering occur during azimuth adjustment is moved with pitch angle regulating device so that
Turntable 1 can be coaxially arranged with column, it is possible to increase and stability of strutting system, readily satisfies the requirement of the rigidity of structure, compact-sized, into
This is low, can realize modularization.
The embodiment two of heliostat in the present invention, the present embodiment and the difference of embodiment one are, in the present embodiment
The turntable bearing outer ring 16 of rolling assembling on turntable 1 is substituted using worm gear, while the driving assembled on turntable 1 is substituted using worm screw
Gear.
In the present invention one embodiment of heliostat include as the column of pedestal, rolling assembling column top settled date
Mirror tracking driving device, the mirror holder being hinged on along horizontal axis in heliostat tracking driving device and track drivetrain for controlling
The heliostat control unit of system（HCU, Heliostat Control Unit）, mirror holder is equipped with speculum.Wherein heliostat with
Tracking driving device in each embodiment of track driving device, that is, above-mentioned heliostat tracking driving device, tracks in driving device
The flange in the bottom 21 of mounting base 19 is connected with the connecting flange that column top is set.In addition, heliostat further include photovoltaic panel and with
The storage battery of photovoltaic panel connection, tracks the hydraulic station of driving device by storage battery power supply, power is provided for whole system.Heliostat
Radio receiving transmitting module is further included, radio receiving transmitting module is also by storage battery power supply.By setting photovoltaic panel and storage battery, heliostat is complete
The various movements of self-protection can be completed in very long sleety weather entirely, and then can remove that mirror field is complicated completely and unordered confession
Power cable；At the same time using wireless communication mode carry out data transmission with data acquisition and programme-control, veritably realize wirelessly
Cable Jing Chang.
One embodiment of tower solar-thermal generating system includes collection thermal tower and by the heliostat around collection thermal tower in the present invention
Heliostat in the embodiment of the settled date lens group of formation, wherein heliostat, that is, above-mentioned heliostat, tower solar-thermal generating system also wrap
Include the heliostat control unit with heliostat（HCU, Heliostat Control Unit）The mirror station control system of communication connection
（HFC, Heliostat Field Control）, the communication information can pass through mobile network, satellite communication network, special communication
Network etc. mode realizes transmission.
In the above-described embodiments, driving device is tracked using digital hydraulic system as execution unit, in its of the present invention
In his embodiment, tracking driving device can also use conventional hydraulic, or realize driving using electric device.In addition,
In the above-described embodiments, the main body of turntable is circular plate body, and in other embodiments, turn table body can also replace with other shapes
Turntable in the patent application document quoted in formula, such as background technology.In addition, in other embodiments, can also be by turntable
Bearing outer ring is fixed with pedestal, and turntable bearing inner ring is fixed with turntable, and wheel is set in the radially inner side of turntable bearing inner ring
Tooth.
It is last it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not limited to this hair
Bright, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still
Technical solution described in foregoing embodiments can be carried out being not required to the modification made the creative labor, or to which part
Technical characteristic carries out equivalent substitution.Within the spirit and principles of the invention, any modification, equivalent replacement, improvement
Deng should all be included in the protection scope of the present invention.
Claims (10)
1. heliostat tracks driving device, including for mirror holder around the turntable of horizontal axis rolling assembling, for driving mirror holder around perpendicular
The azimuth adjustment device that straight axis rotates, turntable are equipped with for the hinged telescoping cylinder hinged seat in the cylinder body front end of telescoping cylinder, its
It is characterized in that：The azimuth adjustment device includes the gear ring or worm gear being rotatably arranged on turntable, and gear ring or worm gear are equipped with
The connecting portion being fixedly connected for the pedestal with heliostat, be additionally provided with turntable drive gear for being engaged with the gear ring or
The worm screw engaged with the worm gear.
2. heliostat according to claim 1 tracks driving device, it is characterised in that：The azimuth adjustment device also wraps
Hydraulic motor is included, the drive gear or worm screw are by fluid motor-driven.
3. heliostat according to claim 2 tracks driving device, it is characterised in that：The turntable, which is equipped with, to be used to drive
The hydraulic station of hydraulic motor action.
4. heliostat according to claim 3 tracks driving device, it is characterised in that：The hydraulic motor is equipped with circumferentially
Uniformly distributed three, the telescoping cylinder hinged seat are disposed therein between two hydraulic motors in circumferential direction, the turntable
Side away from telescoping cylinder hinged seat is equipped with the mirror holder hinged seat around horizontal axis rolling assembling for mirror holder.
5. heliostat according to claim 4 tracks driving device, it is characterised in that：The mirror holder hinged seat is equipped with interval
Two of arrangement, hydraulic station is arranged between two mirror holder hinged seats.
6. the heliostat tracking driving device according to any one of claim 2-5, it is characterised in that：The turntable
Main body be circular plate body, the edge of circular plate body is evenly equipped with the motor mount of the circular plate body of protrusion, the hydraulic motor
It is fixed in a manner of axis vertical on motor mount.
7. the heliostat tracking driving device according to any one of claim 2-5, it is characterised in that：The hydraulic pressure
Motor is equipped with more than two be circumferentially distributed, and each hydraulic motor is connected in parallel on same control valve.
8. heliostat according to claim 7 tracks driving device, it is characterised in that：The control valve is to be connected with numeral
The digital servo valve of motor.
9. heliostat, including pedestal and the speculum that is arranged on pedestal, speculum include mirror holder, are equipped between pedestal and mirror holder
Track driving device, it is characterised in that：The tracking driving device is the heliostat described in any one of claim 1-8
Track driving device.
10. tower solar-thermal generating system, including collection thermal tower and the heliostat around collection thermal tower setting, the heliostat include pedestal
With the speculum being arranged on pedestal, speculum includes mirror holder, and tracking driving device is equipped between pedestal and mirror holder, its feature exists
In：The tracking driving device tracks driving device for the heliostat described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356118.8A CN107943114A (en) | 2017-12-16 | 2017-12-16 | Heliostat, heliostat tracking driving device and tower solar-thermal generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356118.8A CN107943114A (en) | 2017-12-16 | 2017-12-16 | Heliostat, heliostat tracking driving device and tower solar-thermal generating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107943114A true CN107943114A (en) | 2018-04-20 |
Family
ID=61943656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711356118.8A Pending CN107943114A (en) | 2017-12-16 | 2017-12-16 | Heliostat, heliostat tracking driving device and tower solar-thermal generating system |
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| Country | Link |
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| CN (1) | CN107943114A (en) |
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| CN108988761A (en) * | 2018-06-20 | 2018-12-11 | 上海卫星工程研究所 | Adaptive Direct to the sun device |
| CN109101043A (en) * | 2018-07-23 | 2018-12-28 | 深圳市智康新能科技有限公司 | Double push rod driving devices |
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