CN109862244B - Heat protection cover for correcting camera and camera correcting device - Google Patents
Heat protection cover for correcting camera and camera correcting device Download PDFInfo
- Publication number
- CN109862244B CN109862244B CN201910114544.3A CN201910114544A CN109862244B CN 109862244 B CN109862244 B CN 109862244B CN 201910114544 A CN201910114544 A CN 201910114544A CN 109862244 B CN109862244 B CN 109862244B
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel shell
- camera
- glass window
- vertical fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Accessories Of Cameras (AREA)
Abstract
The invention discloses a thermal protection cover for a correction camera, which comprises: the glass window comprises a stainless steel shell, heat insulation cotton, a glass window, heat insulation bricks and a light screen; the inner surface and the outer surface of the stainless steel shell are coated with reflective paint, the top surface, the central part of the bottom surface and the back surface of the stainless steel shell are all of hollow structures, the included angle between the front surface of the stainless steel shell and the horizontal plane is 15-45 degrees, the glass window is arranged in the opening in the front of the stainless steel shell, the reflectivity of the glass window to visible light is not less than 95%, the reflectivity of the glass window to infrared light is not less than 70%, and partial sunlight reflected by the multiple heliostats penetrates through the glass window to irradiate the inside of the stainless steel shell. The invention also provides a camera correcting device, and a heat protection cover for correcting the camera. The thermal protection cover and the camera correction device can reduce the temperature of the correction camera and protect the correction camera from being damaged.
Description
Technical Field
The invention relates to the field of solar power generation, in particular to a camera calibration thermal protection cover for a tower type solar thermal power generation mirror field and a camera calibration device.
Background
Solar thermal power generation is one of the main ways in which solar energy is currently utilized. The current solar thermal power generation adopts a tower type solar thermal power generation method, a tower type solar thermal power generation system reflects sunlight to a heat absorber on a tower frame by utilizing a heliostat which tracks the sun in real time, and high-temperature and high-pressure steam is generated by heating a heat absorption working medium in the tower type solar thermal power generation system to drive a steam turbine generator unit to generate power.
Heliostat fields are an important component of tower solar thermal power plant systems, and usually consist of thousands of heliostats. Because heliostat mechanical structure produces, there is certain deviation in the installation, be difficult to accurately reflect the solar ray to the heat absorber at the beginning of the heliostat installation completion, consequently need rectify the heliostat, but the sun position constantly changes throughout the year, the correction of heliostat often needs going on in cycles, because the heliostat is more in quantity, it often takes longer to be serial to rectify each side heliostat, serious condition can not accomplish the correction to the heliostat even in anticipated correction cycle.
The multi-faceted heliostats can be calibrated in parallel at the same time by using the calibration camera, but the multi-faceted heliostats reflect solar radiation energy to the calibration camera at the same time, so that the temperature of the calibration camera is easily overhigh, and irreversible damage to the calibration camera is caused.
Disclosure of Invention
The invention aims to provide a heat protection cover of a correction camera and a camera correction device using the heat protection cover.
In order to solve the problems, the technical scheme of the invention is as follows:
a calibration camera heat shield, the calibration camera disposed inside the calibration camera heat shield, comprising: the glass window comprises a stainless steel shell, heat insulation cotton, a glass window, heat insulation bricks and a light screen;
the stainless steel shell is of a sandwich structure, the inner surface and the outer surface of the stainless steel shell are coated with reflective paint, the top surface, the central part of the bottom surface and the back surface of the stainless steel shell are of hollow structures, and the included angle between the front surface of the stainless steel shell and the horizontal plane is 15-45 degrees;
the heat insulation cotton is embedded in the sandwich of the stainless steel shell;
the glass window is arranged at the front opening of the stainless steel shell, the reflectivity of the glass window to visible light is not less than 95%, the reflectivity of the glass window to infrared light is not less than 70%, and partial sunlight reflected by the heliostats penetrates through the glass window to irradiate the inside of the stainless steel shell;
the insulating brick is arranged at the joint of the glass window and the stainless steel shell;
the shading plate is arranged on the edge of the inner face of the glass window.
The invention also provides a camera correcting device, which comprises the heat-proof cover for correcting the camera, a first vertical fixing bracket, a second vertical fixing bracket and a camera bracket in any embodiment;
the upper end of the first vertical fixing support is connected with the bottom of the first side surface of the stainless steel shell in a sliding mode, and the upper end of the second vertical fixing support is connected with the bottom of the second side surface of the stainless steel shell in a sliding mode;
the camera support is arranged between the first vertical fixing support and the second vertical fixing support, and the upper end of the camera support penetrates through the bottom surface hollow structure of the stainless steel shell.
According to the embodiment provided by the invention, the first vertical fixing support and the second vertical fixing support respectively comprise a vertical support, a bottom supporting surface, a side reinforcing plate and a top connecting surface;
the upper end of the vertical support is fixedly connected with the top connecting surface, the top connecting surface of the first vertical fixing support is in sliding connection with the bottom of the first side surface of the stainless steel shell, and the top connecting surface of the second vertical fixing support is in sliding connection with the bottom of the second side surface of the stainless steel shell;
the lower end of the vertical support is fixedly connected with the bottom supporting surface;
the cross section of the side reinforcing plate is a right triangle, a first right-angle side of the right triangle is fixedly connected with the surface of the vertical support, and a second right-angle side of the right triangle is fixedly connected with the bottom supporting surface.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects:
1) the stainless steel shell in one embodiment of the invention adopts a sandwich structure, heat insulation cotton is embedded in the sandwich of the stainless steel shell, in addition, reflective paint is coated on the inner surface and the outer surface of the stainless steel shell, the top surface, the central part of the bottom surface and the back surface of the stainless steel shell are all hollow structures, the included angle between the front surface of the stainless steel shell and the horizontal plane is 15-45 degrees, a glass window is arranged at an opening in the front surface of the stainless steel shell, the reflectivity of the glass window to visible light is not less than 95 percent, the reflectivity of the glass window to infrared light is not less than 70 percent, partial sunlight reflected by a plurality of heliostats penetrates through the glass window to irradiate the inside of the stainless steel shell, a heat insulation brick is further arranged at the joint of the glass window and the stainless steel shell. The thermal protection cover can reduce the temperature of the correction camera and protect the correction camera from being damaged.
2) In one embodiment of the invention, the included angle between the front surface of the stainless steel shell and the horizontal plane is 15-45 degrees, and the glass window is arranged in the opening in the front surface of the stainless steel shell, so that heliostats with different distances can be observed by the correction camera.
3) In an embodiment of the invention, the central part, the top surface and the back surface of the bottom surface of the stainless steel shell are all hollow structures, and the solar rays reflected by the inner surface of the stainless steel shell are emitted from the back surface and the top surface, so that the stainless steel shell can be further radiated, and the temperature of the correction camera is reduced.
4) According to the camera correction device provided by the invention, the thermal protection cover of the correction camera provided by the embodiment of the invention can be used for receiving the solar rays reflected by the heliostat and correcting the heliostat.
5) In an embodiment of the invention, the upper end of the first vertical fixing bracket is slidably connected with the bottom of the first side surface of the stainless steel shell, and the upper end of the second vertical fixing bracket is slidably connected with the bottom of the second side surface of the stainless steel shell along the front-back direction of the stainless steel shell. Can make things convenient for the maintenance personal to change the glass window.
6) The camera support in one embodiment of the invention is arranged between the first vertical fixing support and the second vertical fixing support, the upper end part of the camera support penetrates through the bottom surface hollow structure of the stainless steel shell and is not connected with the stainless steel shell, wind resistance borne by the correction camera can be effectively reduced, reliable operation of the correction camera is ensured, and when the ambient wind speed is higher, the shake of the correction camera caused by the shake of the stainless steel shell can be reduced, so that the correction precision is improved.
Drawings
Fig. 1 is a schematic view of the operating principle of a tower type solar thermal power plant according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a thermal shield of a calibration camera according to the present invention;
FIG. 3 is a schematic structural diagram of a stainless steel housing according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first vertical fixing bracket, a second vertical fixing bracket and a camera bracket according to an embodiment of the invention.
Description of reference numerals:
1: a heliostat; 2: a stainless steel housing; 3: a visor; 4: a first vertical fixing bracket; 5: a second vertical fixing bracket; 6: correcting the camera; 7: a glass window; 8: a camera support; 9: a vertical support; 10: a bottom support surface; 11: a top connection surface; 12: a side reinforcing plate.
Detailed Description
The heat shield for calibrating the camera 6 and the camera calibration device using the heat shield according to the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
Example 1
Referring to fig. 1, 2 and 3, a calibration camera 6 heat shield, the calibration camera 6 being disposed inside the calibration camera 6 heat shield, comprises: a stainless steel shell 2, heat insulation cotton (not marked in the figure), a glass window 7, heat insulation bricks (not marked in the figure) and a shading plate 3; the stainless steel shell 2 is of a sandwich structure, the inner surface and the outer surface of the stainless steel shell 2 are coated with reflective paint, the top surface, the central part of the bottom surface and the back surface of the stainless steel shell 2 are of hollow structures, and the included angle between the front surface of the stainless steel shell 2 and the horizontal plane is 15-45 degrees, so that the heliostat 1 with different distances can be observed by the correction camera 6; the heat preservation cotton is embedded in the sandwich position of the stainless steel shell 2, the glass window 7 is arranged at the front opening of the stainless steel shell 2, the reflectivity of the glass window 7 to visible light is not less than 95%, the reflectivity of the glass window 7 to infrared light is not less than 70%, part of sunlight reflected by the heliostats 1 penetrates through the glass window 7 to irradiate the inside of the stainless steel shell 2, the heat preservation brick is arranged at the joint of the glass window 7 and the stainless steel shell 2, and the light shading plate 3 is arranged on the inner face edge of the glass window 7.
The stainless steel shell 2 in the embodiment adopts a sandwich structure, heat insulation cotton is embedded in the sandwich position of the stainless steel shell 2, in addition, the inner surface and the outer surface of the stainless steel shell 2 are coated with reflective paint, the top surface, the bottom surface center part and the back surface of the stainless steel shell 2 are all of hollow structures, the included angle between the front surface of the stainless steel shell 2 and the horizontal plane is 15-45 degrees, a glass window 7 is arranged at an opening in the front surface of the stainless steel shell 2, the reflectivity of the glass window 7 to visible light is not less than 95%, the reflectivity of the glass window 7 to infrared light is not less than 70%, part of solar rays reflected by the plurality of heliostats 1 penetrate through the glass window 7 to irradiate the inside of the stainless steel shell 2, a heat insulation brick is further arranged at the joint of the glass window 7 and the stainless steel shell 2, and a light shading. The thermal shield can reduce the temperature of the correction camera 6 and protect the correction camera 6 from damage.
In this embodiment, since the glass window 7 does not resist high temperature, and the temperature of the stainless steel housing 2 is high during operation, if the glass window 7 directly contacts with the glass window 7, the glass window 7 will exceed the operating temperature and fail, and the calibration camera 6 will be further damaged after the glass window 7 fails. Therefore, in order to protect the glass window 7 from being damaged by the heat transferred from the stainless steel housing 2, insulating bricks are arranged between the two sides of the glass window 7 and the stainless steel housing 2 to isolate the heat from conducting to the glass window 7.
In this embodiment, because the insulating brick is not high temperature resistant, need to avoid heliostat 1 reverberation direct illumination on the insulating brick, consequently be provided with light screen 3 on glass window 7 both sides, the length design of light screen 3 can not fall to the insulating brick on according to the solar radiation of glass window 7 reflection criterion, the distance design of light screen 3 and glass window 7 should satisfy glass window 7 and receive the thermal radiation of high temperature light screen 3, still does not exceed the theoretical service temperature of glass window 7 as the criterion.
Generally, solar radiation energy consists of 50% visible light and 50% infrared light, and generally, commercially available reflective glass often reflects only visible light or infrared light. At a peak projection power of 100kW, even if the single piece of infrared reflective glass reflects 100% of infrared light energy, 50kW of visible light energy remains to enter the heat shield, and the energy flux density can quickly damage the calibration camera 6. And by adopting the scheme of superposing one piece of infrared reflection glass and one piece of visible light reflection glass, although the energy entering the protective cover can be reduced to an ideal level, a gap between the two pieces of reflection glass generates a strong ghost under a strong light environment, unacceptable influence is generated on the imaging of the correction camera 6, and the correction accuracy is reduced.
The glazing 7 in this example is tilted to a reflectivity of no less than 95% for visible light and no less than 70% for infrared light, so that the energy entering the interior of the heat shield is only 17.5% of the total energy. Under the peak projection power of 100kW, after the energy is reflected by the glass window 7, the energy actually entering the interior of the heat shield is only 17.5kW, and the problem of strong reflection caused by the gap between a plurality of pieces of reflective glass is avoided within an acceptable range.
Example 2
The embodiment provides a camera calibration device, which comprises a heat protection cover for calibrating a camera 6, a first vertical fixing support 4, a second vertical fixing support 5 and a camera support 8.
Referring to fig. 2 and 4, along the front and rear direction of the stainless steel case 2, the upper end of the first vertical fixing bracket 4 is slidably connected to the bottom of the first side surface of the stainless steel case 2, and the upper end of the second vertical fixing bracket 5 is slidably connected to the bottom of the second side surface of the stainless steel case 2; camera support 8 locates between first vertical fixed bolster 4 and the vertical fixed bolster 5 of second, and the bottom surface hollow out construction of stainless steel casing 2 is passed to the upper end of camera support 8, and the connecting portion of proofreading and correct camera 6 are connected to the upper end of camera support 8 to fixed proofreading and correct camera 6.
In operation, the camera calibration device is typically mounted within the horizontal platform of the absorber, and the thermal shield extends beyond the perimeter of the horizontal platform to receive the solar rays reflected by the heliostat 1 and calibrate the heliostat 1. When the glass window 7 needs to be replaced, the heat shield is pulled back into the rail along the front and back directions of the stainless steel shell 2, so that the glass window 7 is replaced. In addition, camera support 8 is located between first vertical fixed bolster 4 and the vertical fixed branch of second, and the bottom surface hollow out construction that stainless steel casing 2 was passed to the upper end of camera support 8 does not link to each other with stainless steel casing 2, can effectively reduce the wind resistance that correction camera 6 bore, guarantees the reliable operation of correction camera 6, when the ambient wind speed is great, can reduce the shake of correction camera 6 that stainless steel casing 2 itself shakes and causes to improve and rectify the precision.
Further, the first vertical fixing support 4 and the second vertical fixing support 5 both comprise a vertical support 9, a bottom supporting surface 10, a side reinforcing plate 12 and a top connecting surface 11; the upper end of the vertical support 9 is fixedly connected with a top connecting surface 11, the top connecting surface 11 of the first vertical fixing support 4 is in sliding connection with the bottom of the first side surface of the stainless steel shell 2, and the top connecting surface 11 of the second vertical fixing support 5 is in sliding connection with the bottom of the second side surface of the stainless steel shell 2; the lower end of the vertical bracket 9 is fixedly connected with a bottom supporting surface 10; the cross section of the side reinforcing plate 12 is a right triangle, a first right-angle side of the right triangle is fixedly connected with the surface of the vertical support 9, and a second right-angle side of the right triangle is fixedly connected with the bottom supporting surface 10.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (3)
1. A calibration camera heat shield, the calibration camera disposed inside the calibration camera heat shield, comprising: the glass window comprises a stainless steel shell, heat insulation cotton, a glass window, heat insulation bricks and a light screen;
the stainless steel shell is of a sandwich structure, the inner surface and the outer surface of the stainless steel shell are coated with reflective paint, the top surface, the central part of the bottom surface and the back surface of the stainless steel shell are of hollow structures, and the included angle between the front surface of the stainless steel shell and the horizontal plane is 15-45 degrees;
the heat insulation cotton is embedded in the sandwich of the stainless steel shell;
the glass window is arranged at the front opening of the stainless steel shell, the reflectivity of the glass window to visible light is not less than 95%, the reflectivity of the glass window to infrared light is not less than 70%, and partial sunlight reflected by the multiple heliostats penetrates through the glass window to irradiate the inside of the stainless steel shell;
the insulating brick is arranged at the joint of the glass window and the stainless steel shell;
the shading plate is arranged on the edge of the inner face of the glass window.
2. A camera correction apparatus, comprising: the calibrated camera heat shield of claim 1, a first vertical fixing bracket, a second vertical fixing bracket, and a camera bracket;
the upper end of the first vertical fixing support is connected with the bottom of the first side surface of the stainless steel shell in a sliding mode, and the upper end of the second vertical fixing support is connected with the bottom of the second side surface of the stainless steel shell in a sliding mode;
the camera support is arranged between the first vertical fixing support and the second vertical fixing support, and the upper end of the camera support penetrates through the bottom surface hollow structure of the stainless steel shell.
3. The camera calibration device of claim 2, wherein the first vertical fixing bracket and the second vertical fixing bracket each comprise a vertical bracket, a bottom support surface, a side reinforcing plate, and a top connection surface;
the upper end of the vertical support is fixedly connected with the top connecting surface, the top connecting surface of the first vertical fixing support is in sliding connection with the bottom of the first side surface of the stainless steel shell, and the top connecting surface of the second vertical fixing support is in sliding connection with the bottom of the second side surface of the stainless steel shell;
the lower end of the vertical support is fixedly connected with the bottom supporting surface;
the cross section of the side reinforcing plate is a right triangle, a first right-angle side of the right triangle is fixedly connected with the surface of the vertical support, and a second right-angle side of the right triangle is fixedly connected with the bottom supporting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114544.3A CN109862244B (en) | 2019-02-14 | 2019-02-14 | Heat protection cover for correcting camera and camera correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910114544.3A CN109862244B (en) | 2019-02-14 | 2019-02-14 | Heat protection cover for correcting camera and camera correcting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109862244A CN109862244A (en) | 2019-06-07 |
| CN109862244B true CN109862244B (en) | 2021-04-06 |
Family
ID=66897842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910114544.3A Active CN109862244B (en) | 2019-02-14 | 2019-02-14 | Heat protection cover for correcting camera and camera correcting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109862244B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006030245B4 (en) * | 2006-06-30 | 2017-05-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Partly transparent solar collector with sun protection function |
| WO2014047448A2 (en) * | 2012-09-20 | 2014-03-27 | Mbc Ventures, Inc. | Housing and mounting assembly for skylight energy management system |
| CN102928967B (en) * | 2012-11-20 | 2015-12-23 | 无锡成电科大科技发展有限公司 | There is the imaging system of aberration correction shield |
| CN105022207A (en) * | 2015-08-20 | 2015-11-04 | 北京信路威科技股份有限公司 | Security and protection camera protective cover |
| CN106341956B (en) * | 2016-09-30 | 2019-04-30 | 哈尔滨工业大学 | A Fixed Camera Correction Method |
| CN107676776B (en) * | 2017-11-14 | 2019-11-19 | 山东耀华特耐科技有限公司 | A kind of high temperature resistant fault detection system of boiler hearth of circulating fluidized bed |
-
2019
- 2019-02-14 CN CN201910114544.3A patent/CN109862244B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109862244A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8430093B1 (en) | Solar collector using subreflector | |
| AU2009263471B2 (en) | Method and apparatus for correcting heliostat | |
| EP3719606A1 (en) | Sun-tracking correction system and method based on celestial body image | |
| CN104457610A (en) | Solar condenser mirror surface measuring and adjusting method and device | |
| CN103345261A (en) | Heliostat reflecting facula offset correction method | |
| CN103309361A (en) | Tracking and aiming control method and device for heliostat | |
| AU2011322915B2 (en) | Linearly concentrating solar collector and method for reflector tracking in such a solar collector | |
| CN208171884U (en) | A kind of tower type solar heliostat minute surface clean level detection device | |
| CN109862244B (en) | Heat protection cover for correcting camera and camera correcting device | |
| CN112149263A (en) | Method for setting heliostat installation position in debugging period | |
| Al-Najideen et al. | Optimum design of V-trough solar concentrator for photovoltaic applications | |
| CN103438830A (en) | Solar energy condenser detection apparatus and detection method thereof | |
| CN103673338B (en) | A kind of High-precision heliostat curved surface adjusts correcting unit | |
| CN105066484A (en) | Device and method for measuring radiation intensity of surface of metal pipe in trough type solar heat collector pipe | |
| CN205450422U (en) | Solar energy condensing lens focusing system | |
| Angel et al. | Performance of a prototype heliostat having a twisting mechanism to maintain focus throughout the day | |
| CN103412577A (en) | Heliostat sunlight tracking sensor control method and device thereof | |
| CN104679035A (en) | Self-adaptive sun tracking device of heliostat | |
| CN117093022A (en) | Heliostat aiming system | |
| Faiman et al. | PETAL: a research pathway to fossil-competitive solar electricity | |
| CN210954742U (en) | Sunlight tracking device of tower type solar power generation system | |
| CN105758010B (en) | A kind of linear Fresnel heat dump secondary reflection mirror fixing device | |
| Vagher et al. | Performance of the first mechanically-coupled twisting heliostat: encircled energy vs angle of incidence, and closed loop tracking | |
| Chea et al. | Performance evaluation of new two axes tracking pv-thermal concentrator | |
| CN207991005U (en) | A kind of long tower condenser system of array Fresnel reflection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310018 1-2603, No. 501, No. 2 street, Baiyang street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Zhejiang Kesheng Technology Co.,Ltd. Address before: 310053 8 and 9 floors of No. 307 Liuhe Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG SUPCON SOLAR ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |