CN206833258U - A kind of tower heliostat optically focused deviation sensor - Google Patents
A kind of tower heliostat optically focused deviation sensor Download PDFInfo
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- CN206833258U CN206833258U CN201720389926.3U CN201720389926U CN206833258U CN 206833258 U CN206833258 U CN 206833258U CN 201720389926 U CN201720389926 U CN 201720389926U CN 206833258 U CN206833258 U CN 206833258U
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- sensor
- lens barrel
- speculum
- heliostat
- mirror
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Abstract
The utility model discloses a kind of tower heliostat optically focused deviation sensor, speculum is moved including sensor lens barrel and sensor, the light inlet of sensor lens barrel is located at sensor and moved above speculum, ensures that sensor moves speculum reflected light and injects sensor lens barrel light inlet；The heat dump of sensor lens barrel optical axis direction face center tower top, do not rotate and change with heliostat minute surface；The dynamic speculum of sensor moves mirror support by sensor and is connected in minute surface installation axle, and the sensor of installation moves speculum on heliostat pillar axis, and as heliostat minute surface rotates, it is constant relative to heliostat minute surface that sensor moves speculum space angle；Sensor moves speculum and heliostat minute surface into 45 degree of angles；Lens barrel speculum and lens barrel bobbin axis are into 45 degree of angles；By the secondary reflection of speculum two, obtain and heliostat specular light direction identical lens barrel imaging incident light.And then offset by lens barrel imaging point, measurement specular light deviates the angle of assigned direction.
Description
Technical field
A kind of tower heliostat optically focused deviation sensor is the utility model is related to, can on-line measurement heliostat azimuth, height
Spend angle and deviate size.
Background technology
Tower solar-thermal generating system includes central tower and a large amount of heliostats built around central tower.Pacify at the top of central tower
Heat dump is put, the light of directive oneself is reflexed into heat dump per face heliostat.Because of sun altitude and azimuth anaplasia at any time
Change, elevation angle turntable and azimuth turntable are equipped between heliostat pillar and heliostat minute surface per face heliostat, is born respectively
Duty tracking sun altitude and azimuthal variation.Heliostat minute surface is connected on elevation angle turntable by minute surface installation axle, height
Angle turntable is arranged on the turntable of azimuth, drives heliostat minute surface to do vertical direction rotation, azimuth turntable is arranged on heliostat
At the top of column, elevation angle turntable and heliostat minute surface is driven to do horizontal direction rotation.
Accurately fall to ensure that heliostat is reflective in heat dump specified location, it is necessary to which heliostat optically focused angular deviation is less than
1mrad.In actual tower photo-thermal power station, heat dump setting height(from bottom) can reach more than 100m, and heliostat is away from central tower apart from reachable
To more than 1000m.Under the required precision, optically focused hot spot deviation of the farthest heliostat on heat dump still can exceed 1m with
On.
Current heliostat tracking position of sun process is opened loop control.Space of the heliostat according to itself relative to heat dump
Theoretical position of sun under position, and current time, the minute surface direction needed for itself is calculated, and drive turntable to reach respective angles
Position.There is no actual optically focused angle feed-back during because, heliostat optically focused angle precision is completely by column installation accuracy, turntable
The accuracy of manufacture and controller computational accuracy ensure.High technological requirement is brought to heliostat processing and manufacturing and installation accuracy,
Great challenge is proposed to controller operational reliability.
In heliostat actual moving process, elapsing every error over time can still accumulate, and cause the optically focused of opened loop control
Precision persistently deteriorates.Live heliostat enormous amount, to ensure optically focused stable accuracy, a large amount of manpowers need to be paid at night to the settled date
Calibration is conducted batch-wise in mirror.
The control of heliostat optically focused is open loop approach.To reach heliostat optically focused accuracy requirement, to its accuracy of manufacture, installation essence
Degree proposes high requirement, causes manufacturing cost high, and regular maintenance is complicated.
And open loop control mode can not solve the problems, such as error accumulation.With turntable mechanism wears, Climate and Environment Variation, control
Device calculation error accumulation etc., its optically focused precision runs down.Therefore need periodically to calibrate all heliostats, calibration can only be at night
Deng being carried out offline under power station not working condition.Efficiency of plant can gradually reduce because optically focused deviation accumulates during calibrating twice.
Utility model content
Purpose：In order to overcome the deficiencies in the prior art, it is inclined that the utility model provides a kind of tower heliostat optically focused
Gap sensor, realizes the closed loop feedback of heliostat optically focused angle, and on-line measurement heliostat optically focused error simultaneously constantly corrects.
Technical scheme：In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of tower heliostat optically focused deviation sensor, it is characterised in that：Including sensor lens barrel and the dynamic reflection of sensor
Mirror, the light inlet of sensor lens barrel are located at sensor and moved above speculum, ensure that sensor moves speculum reflected light and injects sensing
The light inlet of device lens barrel；The heat dump of sensor lens barrel optical axis direction face center tower top, do not rotate and change with heliostat minute surface
Become；
The dynamic speculum of sensor moves mirror support by sensor and is connected in minute surface installation axle, the sensing of installation
Device move speculum on heliostat pillar axis, with heliostat minute surface rotate, sensor move speculum space angle relative to
Heliostat minute surface is constant；Sensor, which moves speculum, includes dynamic mirror mirror, moves mirror mirror with heliostat minute surface into 45 degree
Angle；
Sensor lens barrel includes：Lens barrel body, photosurface, imaging len, speculum, light inlet；Lens barrel body includes mirror
Cylinder bobbin and lens barrel vertical section, lens barrel bobbin and lens barrel vertical section are tubular, and both axis are orthogonal to link together；Mirror
In cylinder body, lens barrel bobbin installs speculum, speculum and lens barrel bobbin axis into 45 degree of angles with lens barrel vertical section junction；Into
Picture lens are arranged in lens barrel bobbin, and photosurface is placed in imaging len focal plane；Lens barrel vertical section bottom is provided with light inlet；
The light of speculum reflection is moved by sensor, the light inlet, speculum, imaging for passing sequentially through sensor lens barrel are saturating
Photosurface is fallen on after mirror；Photosurface is placed in imaging len focal plane, and incident sunshine is imaged as a hot spot；According to hot spot
Deviate the distance at photosurface center, judge heliostat mirror space of planes angle deviating situation.
Preferably, described tower heliostat optically focused deviation sensor, it is characterised in that：The sensor is dynamic anti-
Penetrating mirror also includes dynamic speculum base；Dynamic mirror mirror moves mirror support by dynamic speculum floor installation in sensor
On.
Further, described tower heliostat optically focused deviation sensor, it is characterised in that：The dynamic speculum base is
Isosceles right triangle, move mirror mirror and be arranged on hypotenuse, sensor moves mirror support and is arranged on triangle
Under base.
Preferably, described tower heliostat optically focused deviation sensor, it is characterised in that：The sensor lens barrel
Also include focusing mechanism, focusing mechanism is arranged on lens barrel bodies top, for realizing that lens barrel manually or automatically is directed at auxiliary.
Preferably, described tower heliostat optically focused deviation sensor, it is characterised in that：The sensor lens barrel
Heliostat pillar is connected to by the installation of sensor lens cone frame, sensor lens barrel is adjusted by adjusting sensor lens cone frame
Space angle；After the completion of regulation, sensor lens cone frame structure is fixed, and sensor lens barrel space angle does not turn with heliostat minute surface
Move and change.
Preferably, described tower heliostat optically focused deviation sensor, it is characterised in that：The sensor lens barrel
Support one end connects sensor lens barrel, and the other end is connected in heliostat pillar side wall.
Further, the sensor lens cone frame is c-type structure.
Beneficial effect：Tower heliostat optically focused deviation sensor provided by the utility model, has advantages below：1st, can be
Line detects the angle of the off-center tower heat dump of heliostat reflected light.Coordinate heliostat controller, can be achieved the heliostat sun with
The closed-loop control of track.2nd, after introducing Closed loop track control, the requirement of the heliostat accuracy of manufacture and maintaining requirement can be greatly reduced,
Reduce heliostat manufacturing cost.3rd, after introducing Closed loop track control, controller code reliability requirement can be reduced, improves controller
Operation stability.Also strong dependence of the controller to mirror field ionization source stability can be reduced.4th, can after introducing Closed loop track control
The control accumulation of error between off-line calibration operation twice is eliminated, improves optically focused precision, improves generating efficiency.
Brief description of the drawings
Fig. 1 and Fig. 2 is scheme of installation of the present utility model；
Fig. 3 is the structural representation that sensor moves speculum；
Fig. 4 is the structural representation of sensor lens barrel；
Fig. 5 is fundamental diagram of the present utility model；
In figure：Sensor lens barrel 1, sensor move speculum 2, sensor lens cone frame 3, heliostat pillar 4, sensor and moved
Mirror support 5, minute surface installation axle 6, elevation angle turntable 7, azimuth turntable 8, heliostat minute surface 9；
Lens barrel bobbin 11, lens barrel vertical section 12, light inlet 13, speculum 14, imaging len 15, photosurface 16, focusing dress
Put 17；Dynamic mirror mirror 21, moves speculum base 22.
Embodiment
The utility model is further described with reference to specific embodiment.
As depicted in figs. 1 and 2, a kind of tower heliostat optically focused deviation sensor, including sensor lens barrel 1 and sensor move
Speculum 2.
Sensor lens barrel 1 is installed to heliostat pillar 4 by sensor lens cone frame 3.Can be by adjusting sensor lens barrel
Support 3 adjusts the space angle of sensor lens barrel.After the completion of regulation, sensor lens cone frame structure is fixed, and sensor lens barrel 1 is empty
Between angle not with heliostat minute surface rotate and change, sensor lens barrel axis face central tower heat dump direction.Sensor is dynamic anti-
Penetrate mirror 2 mirror support 5 is moved by sensor and be installed to minute surface installation axle 6.In tower solar-thermal generating system, heliostat minute surface 9
It is connected to by minute surface installation axle 6 on elevation angle turntable 7, elevation angle turntable 7 is arranged on azimuth turntable 8, drives heliostat
Minute surface does vertical direction rotation；Azimuth turntable is arranged on the top of heliostat pillar 4, drives elevation angle turntable and heliostat minute surface
Do horizontal direction rotation.Therefore, as heliostat minute surface rotates, sensor moves speculum space angle relative to heliostat minute surface
It is constant.
Include as shown in figure 3, sensor moves speculum 2：Dynamic mirror mirror 21, moves speculum base 22.Dynamic speculum
Base 22 is isosceles right triangle, and dynamic mirror mirror 21 is installed on hypotenuse, installs and passes under triangle base
Sensor moves mirror support 5.After installation, ensure dynamic mirror mirror and heliostat minute surface into 45 degree of angles.
As shown in figure 4, sensor lens barrel 1 includes：It is lens barrel body, light inlet 13, speculum 14, imaging len 15, photosensitive
Face 16, focusing mechanism 17.Lens barrel body includes lens barrel bobbin 11 and lens barrel vertical section 12, lens barrel bobbin 11 and lens barrel vertical section 12
It is tubular, both axis are orthogonal to link together.In lens barrel body, lens barrel bobbin is installed with lens barrel vertical section junction
Speculum.Speculum 14 and the axis of lens barrel bobbin 11 are into 45 degree of angles.The vertical pars infrasegmentalis of lens barrel has transparent light inlet 13.By sensing
Device moves the light that speculum 2 reflects, and the light inlet 13, speculum 14, imaging len 15 for passing sequentially through sensor lens barrel fall afterwards
To photosurface 16.Photosurface 16 is placed in imaging len focal plane, and incident sunshine is imaged as a hot spot.Deviateed according to hot spot
The distance at photosurface center, you can judge heliostat mirror space of planes angle deviating situation.Sensor lens barrel passes through sensor lens barrel
Support is connected in heliostat pillar side wall.After the completion of adjustment sensor lens barrel, lens barrel bobbin axis direction face center tower top
Heat dump.To realize above-mentioned calibration procedures, focusing mechanism is housed at the top of sensor lens barrel, for realizing manually or automatically
Lens barrel alignment auxiliary.
Sensor is installed with reference to figure 1 and Fig. 2.The sensor of installation moves speculum on heliostat pillar axis, with
Minute surface motion is not interfered to be defined.The light inlet of the sensor lens barrel of installation is moved above speculum in sensor, ensures sensing
Device, which moves speculum reflected light, can inject light inlet, and not interfere minute surface motion to be defined.
Operation principle of the present utility model is as follows：In tower photo-thermal power station, heliostat sun incident light and heliostat normal
Angle time to time change, heliostat normal direction also time to time change, but heliostat specular light direction refers to forever
To central tower heat dump.Therefore, do not changed over time for a face heliostat, its mirror-reflection light direction.In the utility model
Sensor device be the angle for deviateing heat dump direction by capturing heliostat specular light, realize heliostat optically focused angle
The closed loop feedback of control.
As shown in Fig. 2 after device installation, lens barrel axis points to central tower heat dump direction, not with heliostat minute surface
Rotate and change.Dynamic speculum is arranged in heliostat minute surface installation axle, thus dynamic speculum follow heliostat minute surface rotate and
Synchronous change space angle.
As shown in Figure 5.It is incident to obtain imaging after dynamic mirror mirror and mirror mirror reflection for sun incident light
Light, imaged lens are imaged on photosurface.The sun incident light in same direction, after being reflected through heliostat minute surface 9, obtains mirror
Face reflected light.Because the vertical plane of dynamic speculum base is parallel with heliostat minute surface, therefore dynamic mirror mirror and heliostat mirror
Face is into 45 degree of angles；Mirror mirror is with lens barrel axis also into 45 degree of angles.According to mirror-reflection principle, it is known that mirror-reflection light direction
It is identical with imaging incident light direction.
When imaging incident light is oriented parallel to lens barrel axis, its imaging facula is located at photosurface center.And it is imaged incident
When light has angle with lens barrel axis, imaging facula deviates photosurface center respective distance.After the completion of sensor lens barrel adjustment, its
Axis direction points to central tower heat dump, and this is the target direction of heliostat specular light irradiation.Because imaging incident light with
Mirror-reflection light direction is identical, and when mirror-reflection light direct beam central tower heat dump, imaging incident light imaging facula is in photosurface
Center.The distance at imaging facula deviation photosurface center reflects the journey in the off-center tower heat dump direction of specular light
Degree.
Therefore the optics on-line measurement photosurface facula position such as camera, photoelectric sensor, the real time measure can be passed through
The angle in the off-center tower heat dump direction of heliostat reflected light.
Described above is only preferred embodiment of the present utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (7)
- A kind of 1. tower heliostat optically focused deviation sensor, it is characterised in that：Speculum is moved including sensor lens barrel and sensor, The light inlet of sensor lens barrel is located at sensor and moved above speculum, ensures that sensor moves speculum reflected light and injects sensor mirror The light inlet of cylinder；The heat dump of sensor lens barrel optical axis direction face center tower top, do not rotate and change with heliostat minute surface；The dynamic speculum of sensor moves mirror support by sensor and is connected in minute surface installation axle, and the sensor of installation moves Speculum is on heliostat pillar axis, and as heliostat minute surface rotates, sensor moves speculum space angle relative to the settled date Mirror minute surface is constant；Sensor, which moves speculum, includes dynamic mirror mirror, moves mirror mirror and heliostat minute surface into 45 degree of angles；Sensor lens barrel includes：Lens barrel body, photosurface, imaging len, speculum, light inlet；Lens barrel body includes lens barrel cylinder Pipe and lens barrel vertical section, lens barrel bobbin and lens barrel vertical section are tubular, and both axis are orthogonal to link together；Lens barrel sheet In vivo, lens barrel bobbin installs speculum, speculum and lens barrel bobbin axis into 45 degree of angles with lens barrel vertical section junction；Imaging is saturating Mirror is arranged in lens barrel bobbin, and photosurface is placed in imaging len focal plane；Lens barrel vertical section bottom is provided with light inlet；By sensor move speculum reflection light, pass sequentially through sensor lens barrel light inlet, speculum, imaging len it After fall on photosurface；Photosurface is placed in imaging len focal plane, and incident sunshine is imaged as a hot spot；Deviateed according to hot spot The distance at photosurface center, judge heliostat mirror space of planes angle deviating situation.
- 2. tower heliostat optically focused deviation sensor according to claim 1, it is characterised in that：The dynamic reflection of the sensor Mirror also includes dynamic speculum base；Dynamic mirror mirror is moved on mirror support by dynamic speculum floor installation in sensor.
- 3. tower heliostat optically focused deviation sensor according to claim 2, it is characterised in that：The dynamic speculum base For isosceles right triangle, move mirror mirror and be arranged on hypotenuse, sensor moves mirror support and is arranged on triangle Under shape base.
- 4. tower heliostat optically focused deviation sensor according to claim 1, it is characterised in that：The sensor lens barrel is also Including focusing mechanism, focusing mechanism is arranged on lens barrel bodies top, for realizing that lens barrel manually or automatically is directed at auxiliary.
- 5. tower heliostat optically focused deviation sensor according to claim 1, it is characterised in that：The sensor lens barrel leads to Cross the installation of sensor lens cone frame and be connected to heliostat pillar, the sky of sensor lens barrel is adjusted by adjusting sensor lens cone frame Between angle；After the completion of regulation, sensor lens cone frame structure is fixed, and sensor lens barrel space angle does not rotate with heliostat minute surface And change.
- 6. tower heliostat optically focused deviation sensor according to claim 5, it is characterised in that：The sensor lens barrel branch Frame one end connects sensor lens barrel, and the other end is connected in heliostat pillar side wall.
- 7. tower heliostat optically focused deviation sensor according to claim 1, it is characterised in that：The sensor lens barrel branch Frame is c-type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389926.3U CN206833258U (en) | 2017-04-14 | 2017-04-14 | A kind of tower heliostat optically focused deviation sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389926.3U CN206833258U (en) | 2017-04-14 | 2017-04-14 | A kind of tower heliostat optically focused deviation sensor |
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| Publication Number | Publication Date |
|---|---|
| CN206833258U true CN206833258U (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720389926.3U Withdrawn - After Issue CN206833258U (en) | 2017-04-14 | 2017-04-14 | A kind of tower heliostat optically focused deviation sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940571A (en) * | 2017-04-14 | 2017-07-11 | 天津清芸主力能源科技有限公司 | A kind of tower heliostat optically focused deviation sensor |
| CN110118527A (en) * | 2019-03-29 | 2019-08-13 | 浙江中控太阳能技术有限公司 | A kind of BCS system accuracy detection method and device |
-
2017
- 2017-04-14 CN CN201720389926.3U patent/CN206833258U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940571A (en) * | 2017-04-14 | 2017-07-11 | 天津清芸主力能源科技有限公司 | A kind of tower heliostat optically focused deviation sensor |
| CN106940571B (en) * | 2017-04-14 | 2023-06-06 | 主力能源有限公司 | Tower heliostat condensation deviation sensor |
| CN110118527A (en) * | 2019-03-29 | 2019-08-13 | 浙江中控太阳能技术有限公司 | A kind of BCS system accuracy detection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190521 Address after: 271199 No. 67 Huiyuan Street, Laiwu High-tech Zone, Shandong Province Patentee after: Main Energy Co.,Ltd. Address before: 300450 Tianjin Hangu Eco-city Animation Center Road 126 Animation Building B2-6F-90 Patentee before: TIANJIN TSINGYUN ZHULI ENERGY TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180102 Effective date of abandoning: 20230606 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180102 Effective date of abandoning: 20230606 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |