CN205300005U - Window geometry dynamic adjustment device is received to solar energy cavate heat absorber - Google Patents
Window geometry dynamic adjustment device is received to solar energy cavate heat absorber Download PDFInfo
- Publication number
- CN205300005U CN205300005U CN201620040793.4U CN201620040793U CN205300005U CN 205300005 U CN205300005 U CN 205300005U CN 201620040793 U CN201620040793 U CN 201620040793U CN 205300005 U CN205300005 U CN 205300005U
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- China
- Prior art keywords
- heat absorber
- moving stop
- temperature sensor
- motor
- guide rail
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
- F24S40/52—Preventing overheating or overpressure by modifying the heat collection, e.g. by defocusing or by changing the position of heat-receiving elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/80—Arrangements for controlling solar heat collectors for controlling collection or absorption of solar radiation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Blinds (AREA)
Abstract
The utility model discloses a window geometry dynamic adjustment device is received to solar energy cavate heat absorber, including polylith retaining device, temperature sensor and control system, polylith baffle plant layout in accent department, the retaining device includes movable baffle, rack, guide rail, gear, slider, mount and motor, rack and slider parallel mount on movable baffle, guide rail and motor install on the mount, the gear is established on the output shaft of motor, wheel and rack meshing, slider and guide rail cooperation, temperature sensor's probe fix on movable baffle, temperature sensor, motor all are connected with control system through the data line. The utility model discloses can form the receipt window shape form of difference, the maximum area that reduces to receive the window when effectively receiving light energy can lose and the convection heat loss by effectual reduction radiant heat, cuts off the function of light source when just having the heat absorber overheat protection of realization or trouble.
Description
Technical field
This utility model relates to solar light-heat power-generation technical field, receives window geometry more particularly to a kind of solar cavity type heat absorber and dynamically regulates device.
Background technology
Solar light-heat power-generation technical field, owing to the solar irradiation radiant emittance of ground receiver is low, large-area solar energy often must be gathered the metal heat pipe surface of heat extractor, the heat-exchange working medium making metal heat pipe internal flow obtains heat energy, and heat energy is transferred to thermoelectric conversion device, then realize solar energy and be converted to electric energy output. In above-mentioned optical and thermal-electricity transformation process, changing of solar energy-heat energy realizes with heat extractor into carrier, and heat extractor is the key improving solar-thermal generating system efficiency.
Realizing efficient thermo-electric conversion, heat extractor is generally adopted cavity body structure form, and is operated at higher temperature. Owing to heat extractor operates in outdoor environment, its cavity temperature, far above ambient temperature, inevitably will produce radiation heat loss, and radiation heat loss's energy value is temperature gap, the positive correlation function receiving window ara. Meanwhile, the cold airflow of external environment condition is by inflow cavity and takes away heat, i.e. convection heat losses, and its convection heat losses's energy value is also temperature difference and the positive correlation function receiving window ara. It will be apparent that, the heat loss of heat extractor to be reduced to improve heat utilization performance, main path is still the effective reception window ara reducing cavity heat absorber. But due to impacts such as the tracking error of rack construction and load metamorphisms, the solar energy that condenser is assembled may deviate reception window and produce optical loss, the window ara that receives so increasing heat extractor is again necessary. Therefore, heat extractor should reduce heat loss and avoid optical loss again, for the reception window of heat extractor be should the little area again of area big, it is necessary to new technical scheme is proposed to solve above-mentioned contradiction.
Currently; the protection device of a kind of Dish solar thermal power system disclosed in Chinese patent CN103604230A; it is by controlling whether the rectilinear motion of a light shield device realizes the cut-out of solar energy; it it is the technical scheme proposed for heat extractor metal tubes overtemperature protection; only there is simple heat extractor and receive the ability that window ara changes, it is impossible to meet the demand that the reception window shape of solar-thermal generating system actual motion changes.In addition, for reducing the convection losses of heat extractor, it has been proposed that install quartz cover plate at heat extractor accent, but this technical scheme manufactures difficulty due to the quartz cover plate of large-area high-transmission rate, and heat extractor accent installs quartz cover plate, and easily to there is temperature distributing disproportionation even, and cause quartz cover plate thermal stress damage, so quartz cover plate solves heat loss still in experimental stage, fail effectively to solve the cavity type heat absorber heat loss problem at actual motion.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of all luminous energy being able to receive that condenser is assembled, and the solar cavity type heat absorber that can effectively reduce heat loss receives window geometry and dynamically regulates device, it can be adjusted to matched minimum geometric area according to optically focused spot size by receiving window geometry, by reducing heat extractor reception window aperture area in real work, reach to reduce radiation heat loss and become estranged the purpose of convection heat losses.
The technical solution adopted in the utility model is: a kind of solar cavity type heat absorber receives window geometry and dynamically regulates device, including polylith retaining device, temperature sensor and control system, described polylith retaining device is evenly arranged in accent place along the circumferencial direction of heat extractor accent; Retaining device includes moving stop, tooth bar, guide rail, gear, slide block, fixed mount and motor; Described tooth bar and slide block are installed in parallel on moving stop, and tooth bar is arranged along the radius of heat extractor accent; Described guide rail and motor are arranged on fixed mount, and gear is located on the output shaft of motor, and wheel and rack engages, and slide block coordinates with guide rail; Described retaining device is connected with the casing of heat extractor by fixed mount; The probe of described temperature sensor is fixed on moving stop, and temperature sensor, motor are connected with controlling system each through data wire.
Above-mentioned solar cavity type heat absorber receives window geometry and dynamically regulates in device, and described moving stop includes lamina rara externa and warming plate; Lamina rara externa and warming plate connect, and warming plate is towards heat extractor, and lamina rara externa is provided with blind hole, and the probe of temperature sensor is arranged in blind hole, and data wire is drawn from the faying face between lamina rara externa and warming plate.
Above-mentioned solar cavity type heat absorber receives window geometry and dynamically regulates in device, and described moving stop is rectangle or is with jagged rectangle; Recess is positioned at moving stop one end towards heat extractor accent center, and recess is trapezoidal or semicircle, and the other end of moving stop is provided with connecting plate, and connecting plate is fixedly connected with a slide block; Described temperature sensor is the edge of the recess being evenly arranged in lamina rara externa.
Above-mentioned solar cavity type heat absorber receives window geometry and dynamically regulates in device, multiple moving stops of described accent end can be overlapping, and between two adjacent moving stops, leave the gap preventing interfering, it is positioned at innermost moving stop and is fitted on the end face of heat extractor.
Above-mentioned solar cavity type heat absorber receives window geometry and dynamically regulates in device, and what described lamina rara externa adopted is metal material, and what warming plate adopted is insulation material.
Above-mentioned solar cavity type heat absorber receives window geometry and dynamically regulates in device, and the two ends of described guide rail are all installed with block.
Above-mentioned solar cavity type heat absorber receives window geometry and dynamically regulates in device, also includes limited block. Limited block is provided with rach slot, and tooth bar coordinates with rach slot, and described limited block is arranged on fixed mount.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model dynamically regulates heat extractor by the translation of moving stop and receives the geometry of window and size, it is possible to farthest reduces radiation heat loss while effectively receiving luminous energy and becomes estranged convection heat losses.
2, moving stop of the present utility model can arrange different geometric properties, motion stack combinations according to these geometric properties, the reception window shape that feature is different can be formed, the gas flowing of heat absorber cavity can be slowed down by geometric properties shape, thus a degree of minimizing convection heat losses.
3, the motion of moving stop of the present utility model is capable of heat extractor and receives the standard-sized sheet of window, fully closed and other operating modes; it is capable of disconnected light protection during overtemperature protection or the electricity generation system fault of heat absorber cavity metal heat pipe; moving stop can be moved to when namely breaking down or be overheated the state making heat extractor accent complete closure, block luminous energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the front view of standard-sized sheet operating mode of the present utility model.
Fig. 3 is the top view of standard-sized sheet operating mode of the present utility model.
Fig. 4 is axonometric drawing of the present utility model.
Fig. 5 be this utility model for regulating time structure chart.
Fig. 6 is the structure chart of the moving stop without recess of the present utility model
Fig. 7 is the structure chart of the moving stop with trapezoidal recess of the present utility model.
Fig. 8 is the structure chart that this utility model (including four retaining devices with semi-circular indentation) is used for when regulating.
Fig. 9 is the structure chart that this utility model (including the retaining device of four rectangles) is used for when regulating.
Figure 10 is the structure chart that this utility model (including two retaining devices with trapezoidal recess) is used for when regulating.
In figure: 1 heat extractor; 2 accents; 3 bolts; 4 connecting plates; 5 gears; 6 motor; 7 tooth bars; 8 guide rails; 9 fixed mounts; 10 moving stops; 11 casing; 12 recesses; 13 retaining devices; 14 control system; 15 data wires; 16 slide blocks; 17 thermoelectric conversion devices; 18 semicircle nocks; 19 lamina rara externas; 20 temperature sensors; 21 warming plates; 22 limited blocks; 23 coupling rods; 24 round nuts; 25 blocks.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described.
As shown in Fig. 1 Fig. 4, this utility model includes two retaining devices 13, multiple temperature sensor 20 and control system 14. Two described retaining devices 13 are evenly arranged in accent place along the circumferencial direction of heat extractor accent. Described retaining device 13 includes moving stop 10, the gear 5 adopting the tooth bar 7 being bolted on moving stop 10 to coordinate with tooth bar 7 engaged transmission, the guide rail 8 that is arranged on fixed mount 9 coordinate with guide rail 8 slide block 16 and motor 6, described tooth bar is along the setting of heat extractor accent radial direction. As it is shown in figure 1, retaining device 13 adopts bolt to fix by the casing 11 of fixed mount 9 with heat extractor 1. Described moving stop 10 includes lamina rara externa 19 and the warming plate 21 consistent with lamina rara externa 19 geometry, lamina rara externa 19 and warming plate 21 are overlapping laminatings and are bolted; Warming plate 21 is towards heat extractor 1. What lamina rara externa 19 adopted is metal material, and what warming plate 21 adopted is have high temperature resistant and that heat conductivity is little insulation material. As shown in Figure 8,9, this utility model can also include four retaining devices 13.
Moving stop 10 is the rectangle with semicircular recess 12; Recess 12 is positioned at moving stop 10 one end towards the heat extractor accent center of circle, as it is shown in fig. 7, the shape of recess 12 can also be trapezoidal, as shown in Figure 6, moving stop 10 can also is that the rectangle without recess; The other end surface of moving stop 10 is symmetrically welded with connecting plate 4, and connecting plate 4 adopts that bolt 3 and slide block 16 is fixing to be connected.Described motor 6 is arranged on support 35, and support 35 is arranged on fixed mount 9. The output shaft of motor 6 is connected by coupling rod 23 is fixing with gear 5, and adopts round nut 24 that gear 5 is carried out axial restraint.
The edge of lamina rara externa 19 upper notch is uniformly provided with multiple blind hole; The probe of described temperature sensor 20 is fixed in the blind hole of lamina rara externa 1, and draws data wire from the faying face between lamina rara externa 19 and warming plate 21. Described temperature sensor 20, motor 6 electrically connect with control system 14 each through data wire 15. Described control system 14 is previously stored with desirable physical dimension and the shape of optically focused hot spot, the least limit position receiving window for determining moving stop to be formed.
As in figure 2 it is shown, multiple moving stops 10 of accent 2 end of heat extractor can be overlapping, and leaving certain gap preventing from interfering between two adjacent moving stops 10, innermost moving stop 10 is fitted on the end face of heat extractor 1.
As shown in Figure 4, the two ends of described guide rail 8 all adopt bolt 3 to be fixed with block 25. Described fixed mount 9 is provided with limited block 22, and limited block 22 is provided with rach slot, and tooth bar 7 coordinates with the rach slot of limited block 22.
As shown in Figure 5, the relative movement of the moving stop 10 that this utility model is arranged by two pieces of left and right with semi-circular indentation, the minimum reception window ara of duty and the non-daylighting operating mode of the complete closure of failure condition can be realized, and receive window geometry be especially suitable for condenser system carrying situation hot spot reception, because the rack construction load metamorphism of solar light-heat power-generation system is mainly along elevation angle direction of principal axis rotation displacement (such as dish-style solar-thermal generating system), the skew of hot spot is vertically to move, big left and right is little up and down just for reception window shape now.
As shown in Figure 8, this utility model can adopt symmetrical up and down arranges four pieces of moving stops 10 with semi-circular indentation, and four pieces of moving stops 10 with semi-circular indentation can form more compact reception window shape, and this shape is closer to circle.
As it is shown in figure 9, this utility model can by be arranged symmetrically with moving stop 10 four pieces rectangular-shaped move combination obtain rectangle receive window shape.
As shown in Figure 10, this utility model can move by being arranged symmetrically with two pieces of moving stops 10 with trapezoidal recess, and combination obtains hexagon and receives window shape.
Operation principle of the present utility model is as follows: (1) control system is according to the desirable physical dimension of the optically focused hot spot prestored and shape, send signal and control the rotation of motor to regulate the position of each moving stop, making the reception window geometry of formation slightly larger than desired light spot size; (2) in light and heat collection running, judged the drift condition of hot spot by the some temperature sensors arranged in mobile moving stop, control temperature value and the position of system real-time reception temperature sensor transmission, and carry out real time contrast's analysis; (3) when the solar energy assembled is incident upon certain fast moving stop position, the temperature of this local location will sharply raise, now control system and the position raised according to temperature is regulated the quantity of motion of moving stop, make the luminous energy of gathering can fully enter in heat absorber cavity; (4) after running a period of time, again moving stop is regulated to minimum reception window position. Actual solar light-heat power-generation system operation, makes optically focused facula deviation mainly due to the impact of wind outside load and is dynamic, and the most working time is in ideal stable optically focused hot spot situation.Therefore, above-mentioned adjustment action is not loaded down with trivial details, and can stably a comparatively suitable reception window size under wind load action.
Claims (7)
1. solar cavity type heat absorber receives window geometry and dynamically regulates a device, it is characterized in that: including polylith retaining device, temperature sensor and control system, described polylith retaining device is evenly arranged in accent place along the circumferencial direction of heat extractor accent; Retaining device includes moving stop, tooth bar, guide rail, gear, slide block, fixed mount and motor; Described tooth bar and slide block are installed in parallel on moving stop, and tooth bar is arranged along the radius of heat extractor accent; Described guide rail and motor are arranged on fixed mount, and gear is located on the output shaft of motor, and wheel and rack engages, and slide block coordinates with guide rail; Described retaining device is connected with the casing of heat extractor by fixed mount; The probe of described temperature sensor is fixed on moving stop, and temperature sensor, motor are connected with controlling system each through data wire.
2. solar cavity type heat absorber according to claim 1 receives window geometry and dynamically regulates device, it is characterized in that: described moving stop includes lamina rara externa and warming plate; Lamina rara externa and warming plate connect, and warming plate is towards heat extractor, and lamina rara externa is provided with blind hole, and the probe of temperature sensor is arranged in blind hole, and data wire is drawn from the faying face between lamina rara externa and warming plate.
3. solar cavity type heat absorber according to claim 1 receives window geometry and dynamically regulates device, it is characterized in that: described moving stop is rectangle or is with jagged rectangle; Recess is positioned at moving stop one end towards heat extractor accent center, and recess is trapezoidal or semicircle, and the other end of moving stop is provided with connecting plate, and connecting plate is fixedly connected with a slide block; Described temperature sensor is the edge of the recess being evenly arranged in lamina rara externa.
4. solar cavity type heat absorber according to claim 1 receives window geometry and dynamically regulates device, it is characterized in that: multiple moving stops of described accent end can be overlapping, and between two adjacent moving stops, leave the gap preventing interfering, it is positioned at innermost moving stop and is fitted on the end face of heat extractor.
5. solar cavity type heat absorber according to claim 2 receives window geometry and dynamically regulates device, it is characterized in that: what described lamina rara externa adopted is metal material, and what warming plate adopted is insulation material.
6. solar cavity type heat absorber according to claim 1 receives window geometry and dynamically regulates device, it is characterized in that: the two ends of described guide rail are all installed with block.
7. solar cavity type heat absorber according to claim 1 receives window geometry and dynamically regulates device, it is characterized in that: also include limited block, and limited block is provided with rach slot, and tooth bar coordinates with rach slot, and described limited block is arranged on fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040793.4U CN205300005U (en) | 2016-01-15 | 2016-01-15 | Window geometry dynamic adjustment device is received to solar energy cavate heat absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040793.4U CN205300005U (en) | 2016-01-15 | 2016-01-15 | Window geometry dynamic adjustment device is received to solar energy cavate heat absorber |
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| Publication Number | Publication Date |
|---|---|
| CN205300005U true CN205300005U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620040793.4U Expired - Fee Related CN205300005U (en) | 2016-01-15 | 2016-01-15 | Window geometry dynamic adjustment device is received to solar energy cavate heat absorber |
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| CN (1) | CN205300005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485944A (en) * | 2016-01-15 | 2016-04-13 | 湖南科技大学 | Geometrical shape dynamic adjustment device of receiving window of solar cavity type heat absorber |
-
2016
- 2016-01-15 CN CN201620040793.4U patent/CN205300005U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485944A (en) * | 2016-01-15 | 2016-04-13 | 湖南科技大学 | Geometrical shape dynamic adjustment device of receiving window of solar cavity type heat absorber |
| CN105485944B (en) * | 2016-01-15 | 2017-04-12 | 湖南科技大学 | Geometrical shape dynamic adjustment device of receiving window of solar cavity type heat absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20180115 |