CN113531923A - Automatic dust removal device and dust removal method for mirror surface traction type photo-thermal heliostat - Google Patents
Automatic dust removal device and dust removal method for mirror surface traction type photo-thermal heliostat Download PDFInfo
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- CN113531923A CN113531923A CN202110807012.5A CN202110807012A CN113531923A CN 113531923 A CN113531923 A CN 113531923A CN 202110807012 A CN202110807012 A CN 202110807012A CN 113531923 A CN113531923 A CN 113531923A
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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
- F24S40/20—Cleaning; Removing snow
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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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- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a mirror surface traction type automatic dust removal device and a dust removal method for a photo-thermal heliostat, wherein the dust removal device comprises a brush roller and an electric driving device, the brush roller is in mirror surface contact with the heliostat and is matched with the heliostat in length, two ends of the brush roller are fixedly connected with winding rollers, the electric driving device is coaxially installed at two ends of the winding rollers, a traction cable is wound on the winding rollers, the other end of the traction cable is fixedly arranged at the top end of the heliostat, and the outer diameter D of the winding rollers is smaller than the outer diameter D0 of the brush roller. According to the invention, the synchronous upward or downward rotation of the brush roller and the winding roller is realized through the traction cable and the electric driving device, the brush roller moves up and down along the surface of the heliostat, the eccentric friction force between the brush and the surface of the heliostat generated by gravity traction is fully utilized, and the floating dust on the surface of the heliostat can be effectively removed.
Description
Technical Field
The invention belongs to the technical field of solar thermal power generation, and particularly relates to an automatic dust removal device and method for a mirror surface traction type photo-thermal heliostat.
Background
The heliostat is a light-gathering device which comprises a smooth surface emitting mirror, a supporting structure system, a tracking transmission mechanism, an integrated control system and the like, and a plurality of heliostats receive and gather and reflect sunlight heat under the control system, so that the heliostat is an important component of a light-gathering and heat-collecting system in a tower type photothermal power station. Generally, a tower-type solar thermal power station is built in a gobi plain or a desert edge zone with very good light resources, and tiny particles such as dust and sundries are inevitably accumulated on a heliostat mirror surface, so that the reflectivity of the heliostat is influenced, and the power generation efficiency of light condensation and heat collection is reduced.
At present, the cleaning of heliostat mirror surfaces is always a key problem in the field of solar thermal power generation, and is mainly embodied in that the heliostat mirror surfaces need to be cleaned efficiently and dedusted, and a cleaning device needs to have convenience and energy conservation. The cleaning mode that the existing heliostat mirror field is put into use mainly comprises mechanical cleaning, and is mainly characterized in that a mechanical cleaning vehicle is adopted, the cleaning process of the mirror surface is generally water-spraying and then-contacting type scrubbing, the main defects are that manual operation is needed, the technical requirement is high, the water consumption is high, the cleaning vehicle is not suitable for northwest areas with water resource shortage and cold environments, particularly, for a heliostat factory with more than ten thousands of surfaces, the cleaning speed is low, the cost is high, the cleaning of all the mirror surfaces can not be guaranteed within a short time, the cleaning vehicle is limited by the height fluctuation of the pavement of the factory, the mirror surface is possibly damaged in the cleaning process, and mechanical equipment needs to be maintained regularly.
Disclosure of Invention
The invention aims to provide an automatic dust removal device for a mirror surface traction type photo-thermal heliostat, which overcomes the technical problems in the prior art.
The invention also aims to provide a dust removing method for the heliostat, which can effectively remove the dust deposition on the mirror surface by fully utilizing the eccentric friction force between the brush and the mirror surface generated by gravity traction.
Therefore, the technical scheme provided by the invention is as follows:
the utility model provides an automatic dust collector of mirror surface towed light and heat heliostat, includes brush roller and electric drive device, the brush roller matches with heliostat mirror surface contact and both length, the both ends of brush roller have all linked firmly the wire winding roller, electric drive device coaxial arrangement is at wire winding roller both ends, the winding has the haulage cable on the wire winding roller, the haulage cable other end sets firmly on the heliostat top, the external diameter D of wire winding roller is less than the external diameter D0 of brush roller.
The electric driving device comprises a motor, a sliding support and a speed reducer, wherein the motor is installed on the sliding support, an output shaft of the motor is connected with the speed reducer, and an output shaft of the speed reducer is connected with the brush roller.
The utility model discloses a heliostat, including heliostat, sun-shading protective cover, traction cable, winding roller, the symmetry of heliostat top is equipped with the sun-shading protective cover, be equipped with on the sun-shading protective cover and hang the fulcrum, the other end of traction cable links firmly with hanging the fulcrum, and the straight line at two fulcrum places of hanging is parallel with the winding roller, the direction perpendicular to winding roller of traction cable.
The lower end face of the heliostat is connected with a supporting upright post through a rotating shaft.
The difference between the outer diameter D of the winding roller and the outer diameter D0 of the brush roller is 15-45 mm.
The sliding support comprises a support and a supporting wheel set, the speed reducer is arranged on the support, and the support covers the winding roller;
the middle part of the support is arc-shaped, the two ends of the support are symmetrically connected with the supporting wheel set through the horizontal plate, the supporting wheel set is composed of an upper supporting wheel and a lower supporting wheel, the upper supporting wheel and the lower supporting wheel are respectively arranged on the upper end surface and the lower end surface of the heliostat, and the upper supporting wheel and the lower supporting wheel are connected through the connecting plate.
A heliostat dust removal method adopts a mirror surface traction type photo-thermal heliostat automatic dust removal device, an electric driving device drives a brush roller and a winding roller to synchronously rotate upwards or downwards, and brushes on the brush roller and a heliostat mirror surface slide relatively, so that the brush roller performs rolling brushing on the heliostat mirror surface, and accumulated dust on the heliostat mirror surface is removed.
When the electric driving device drives the brush roller to rotate downwards, the traction cable is unreeled for a long time, and because the outer diameter of the brush roller is larger than the wire winding roller, the brush hair of the brush roller is in contact with the mirror surface of the heliostat in the falling processLinear velocity of rotationRGreater than the falling speed of the brush rollerVAnd the speed difference is generated, and the brush and the heliostat mirror surface slide relatively due to the speed difference in the falling motion process, so that the brush roller performs rolling brushing on the heliostat mirror surface to remove dust deposited on the heliostat mirror surface.
When the electric driving device drives the brush roller to rotate upwards, the traction cable is wound on the winding roller, the free length of the traction cable is reduced, the position of the brush roller is raised in the rotating process, and the rotating speed of the motor is used for controlling the raising speed of the brush roller.
The invention has the beneficial effects that:
according to the mirror surface traction type automatic dust removal device for the photo-thermal heliostat, the brush roller and the winding roller synchronously rotate upwards or downwards through the traction cable and the electric driving device, the brush roller moves up and down along the surface of the heliostat to brush the surface of the heliostat, and accumulated dust on the surface of the heliostat is removed.
This automatic dust collector of mirror surface towed light and heat heliostat, according to heliostat operation law, make full use of gravity pulls eccentric frictional force between the brush that produces and the mirror surface, can effectively get rid of the floating dust of mirror surface.
The central roller, the hairbrush and the like of the hairbrush roller can be conveniently customized and assembled, and the diameter, the type and the length of the hairbrush of the central roller can be correspondingly adjusted for heliostats with different sizes, so that the hairbrush roller has a wide application range, can be applied to different factories, is suitable for dry, dusty and water resource-deficient areas such as deserts, plateaus and the like, and is also suitable for cold weather environments with low temperature.
The following will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a three-dimensional ensemble of brush rollers mounted on a heliostat mirror surface;
FIG. 2 is a three-dimensional detail view of the mounting of a brush roller on a heliostat mirror;
FIG. 3 is a schematic side view of the brush roller and the electric device under a lifting force;
FIG. 4 is a schematic side view of the overall operation of the brush roller on the heliostat mirror;
fig. 5 is a detailed schematic view of the electric drive.
In the figure: 1. a brush roller; 101. a center roller; 102. brushing; 103. a winding roller; 2. a heliostat; 3. a traction cable; 4. a hanging point; 5. an electric drive device; 501. a sliding support; 502. an electric motor; 503. a speed reducer; 504. a support wheel set; 6. supporting the upright post; 7. a sunshade protective cover.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the embodiment provides an automatic dust collector of mirror surface towed light and heat heliostat, including brush roller 1 and electric drive device 5, brush roller 1 matches with 2 mirror surface contact of heliostat and both length, the both ends of brush roller 1 have all linked firmly winding roller 103, electric drive device 5 coaxial arrangement is at winding roller 103 both ends, the winding has haulage cable 3 on winding roller 103, the 3 other ends of haulage cable set firmly on 2 tops of heliostat, the external diameter D of winding roller 103 is less than the external diameter D0 of brush roller 1.
As shown in figure 1, the left side and the right side of the brush roller 1 are hung on the mirror surface of the heliostat 2 through the traction ropes 3, the length of the brush roller 1 is matched with the length of the heliostat 2, and the mirror surface of the heliostat 2 is fully covered for dedusting as far as possible. The heliostat 2 is composed of 3x3 or 4x4 finished mirror units, and the total area is generally 20-60 square meters. In general specific implementation, different diameters of the winding roller 103 and the brush roller 1 are selected according to the actual area of the heliostat 2, so that the weight of the dust removal device and the pressure applied to the mirror surface by the brush roller 1 are controlled, and the purpose of removing the dust accumulation effect under different conditions is achieved.
As shown in fig. 2, the brush roller 1 comprises a central roller 101 and bristles 102, the bristles 102 are attached to the central roller 101, the central roller 101 and the bristles 102 are integrally manufactured, and the bristles 102 adopt different levels of heat-resistant and wear-resistant polyurethane series according to the use environment of the heliostat 2. The winding rollers 103 are positioned at the left and right sides of the center roller 101, and wound around the traction rope 3 after punching, and the outer diameter D of the winding rollers 103 is smaller than the outer diameter D0 of the brush roller 1.
The principle of the invention is as follows:
as shown in fig. 3, when the mirror surface of the heliostat 2 forms a certain angle θ with the ground, the brush roller 1 forms a pressure angle θ to the mirror surface of the heliostat 2, a pressure P = G × cos (θ) to the mirror surface, and a tension F = G × sin (θ) to the traction cable 3 by the gravity G. The bristles 102 deform under pressure P and cling to the heliostat 2 mirror surface. Meanwhile, the stress point of the pulling force F exerted on the winding roller 103 by the traction cable 3 is not coincident with the gravity center O of the brush roller 1, and the distance is S. Eccentric force F can make brush roller 1 produce eccentric moment of torsion N = F S, when brush roller 1 falls from the upper end of 2 mirror surfaces of heliostat under the action of gravity, its pulling force forms eccentric moment of torsion N and makes brush roller 1 take place the rotation, make haulage cable 3 unreel and lengthen, brush roller 1 forms the round brush effect along 2 mirror surfaces downstream of heliostat, clear away the deposition on the 2 mirror surfaces of heliostat, drive electric drive device 5 simultaneously and follow 2 mirror surfaces downstream of heliostat, electric drive device 5' S rotational speed is used for controlling the slew velocity of brush roller 1.
Example 2:
on the basis of embodiment 1, the present embodiment provides an automatic dust removing device for a mirror-surface traction type photothermal heliostat, where the electric driving device 5 includes an electric motor 502, a sliding support 501, and a speed reducer 503, the electric motor 502 is mounted on the sliding support 501, an output shaft of the electric motor is connected to the speed reducer 503, and an output shaft of the speed reducer 503 is connected to the brush roller 1.
As shown in fig. 5, the motor 502 is mounted on the sliding bracket 501, and the output of the motor is connected to the speed reducer 503, and the output shaft of the speed reducer 503 is connected to the center roller 101 of the brush roller 1, so that the brush roller 1 and the winding roller 103 can be driven to rotate synchronously. During the operation of the electric driving device 5, the sliding bracket 501 can slide linearly up or down along the mirror surface of the heliostat 2, but cannot rotate.
Example 3:
on embodiment 1's basis, this embodiment provides an automatic dust collector of mirror surface towed light and heat heliostat, 2 top symmetries of heliostat are equipped with sunshade protection cover 7, be equipped with on sunshade protection cover 7 and hang the fulcrum, the other end of haulage cable 3 links firmly with hanging the fulcrum, and two straight lines of hanging the fulcrum place are parallel with winding roller 103, the direction perpendicular to winding roller 103 of haulage cable 3.
As shown in fig. 2 and 4, one end of the traction cable 3 is wound on the winding roller 103 in a plurality of turns, and the other end is fixed to a hanging point 4 of the sun protection cover 7 above the mirror surface of the heliostat 2. The traction rope 3 adopts a flexible traction wire, and the diameter is generally 1.5-2.0 mm. In the hoisting and traction process, the direction of the traction cable 3 is always vertical to the winding roller 103, and is not superposed with the gravity center of the brush roller 1, and the distance S between the traction cable and the winding roller is close to D/2; the other end of the traction cable 3 is fixedly connected with a hanging fulcrum, and the hanging fulcrum is parallel to the winding roller 103 and fixed at the top of the heliostat 2.
Example 4:
on the basis of embodiment 1, this embodiment provides an automatic dust collector of mirror surface towed light and heat heliostat, the lower terminal surface of heliostat 2 has support post 6 through the rotation axis connection.
As shown in fig. 4, the heliostat 2 is supported by the support column 6, and the angle θ between the heliostat 2 and the ground can be adjusted by the pitch angle adjustment system (the rotating shaft in the present embodiment) of the heliostat 2. In the dust removal process, the first function of the supporting upright post 6 is to adjust the pressure P applied to the mirror surface by the brush roller 1 through the angle theta, so as to adjust the contact surface of the brush 102 on the mirror surface, and achieve the purpose of removing the dust deposition effect according to different conditions; the second function is to reduce the angle θ to make the mirror surface of the heliostat 2 nearly horizontal when the brush roller 1 is driven to rotate upward by the electric drive device 5, thereby reducing the torque requirements of the motor 502 and the speed reducer 503 during ascent.
Example 5:
on the basis of embodiment 1, the embodiment provides an automatic dust removal device for a mirror surface traction type photo-thermal heliostat, wherein the difference between the outer diameter D of the winding roller 103 and the outer diameter D0 of the brush roller 1 is 15-45 mm.
As shown in fig. 4, since the diameter of the brush roller 1 is larger than the wire winding roller 103, the rotational linear velocity R of the mirror-surface contact portion of the brush bristles 102 with the heliostat 2 during the falling is larger than the falling velocity V of the brush roller 1, resulting in a velocity difference. The brush on the brush roller 1 and the 2 surfaces of the heliostat generate relative sliding due to the speed difference in the falling motion process, so that the brush roller 1 forms a rolling brush effect on the 2 surfaces of the heliostat, and the dust deposit on the 2 surfaces of the heliostat can be removed.
The embodiment can also be provided with a control system, and the control system controls the start and stop and the forward and reverse rotation of the electric driving device 5 by monitoring the displacement data of the displacement sensor or the rotary encoder in real time, so as to realize the accurate control of the ascending and descending distance of the traction cable 3.
Example 6:
on the basis of embodiment 1, the embodiment provides an automatic dust removal device for a mirror-surface traction type photothermal heliostat, where the sliding support 501 includes a support and a support wheel set 504, the speed reducer 503 is disposed on the support, and the support is covered above the winding roller 103;
the middle part of the support is arc-shaped, the two ends of the support are symmetrically connected with the supporting wheel set 504 through the horizontal plate, the supporting wheel set 504 is composed of an upper supporting wheel and a lower supporting wheel, the upper supporting wheel and the lower supporting wheel are respectively arranged on the upper end surface and the lower end surface of the heliostat 2, and the upper supporting wheel and the lower supporting wheel are connected through the connecting plate. As shown in fig. 5.
In the present embodiment, the speed reducer is a worm gear and worm speed reducer, the worm is connected to the output shaft of the motor 502, and the worm gear output shaft is connected to the winding roller 103. The bracket is covered above the winding roller 103 without affecting the rotation thereof. The supporting wheel set 504 restricts the sliding support 501 to slide but not rotate, the sliding support 501 restricts the distance between the brush roller 1 and the heliostat surface 2 in the process that the brush roller 1 moves along the surface of the heliostat, the curvature of the brush bristles 102 is further controlled, and meanwhile the sliding support 501 can provide reverse supporting moment for the rotation work of the brush roller 1.
Example 7:
the embodiment provides a heliostat dust removal method, which adopts a mirror surface traction type photo-thermal heliostat automatic dust removal device, wherein an electric driving device 5 drives a brush roller 1 and a winding roller 103 to synchronously rotate upwards or downwards, and a brush on the brush roller 1 and a mirror surface of a heliostat 2 slide relatively, so that the brush roller 1 rolls and brushes the mirror surface of the heliostat 2, and accumulated dust on the mirror surface of the heliostat 2 is removed.
As shown in fig. 3, when the mirror surface of the heliostat 2 forms a certain angle θ with the ground, the brush roller 1 forms a pressure angle θ to the mirror surface of the heliostat 2, a pressure P = G × cos (θ) to the mirror surface, and a tension F = G × sin (θ) to the traction cable 3 by the gravity G. The bristles 102 deform under pressure P and cling to the heliostat 2 mirror surface. Meanwhile, the stress point of the pulling force F exerted on the winding roller 103 by the traction cable 3 is not coincident with the gravity center O of the brush roller 1, and the distance is S. Eccentric force F can make brush roller 1 produce eccentric moment of torsion N = F S, when brush roller 1 falls from the upper end of 2 mirror surfaces of heliostat under the action of gravity, its pulling force forms eccentric moment of torsion N and makes brush roller 1 take place the rotation, make haulage cable 3 unreel and lengthen, brush roller 1 forms the round brush effect along 2 mirror surfaces downstream of heliostat, clear away the deposition on the 2 mirror surfaces of heliostat, drive electric drive device 5 simultaneously and follow 2 mirror surfaces downstream of heliostat, electric drive device 5' S rotational speed is used for controlling the slew velocity of brush roller 1.
Example 8:
on the basis of embodiment 7, this embodiment provides a heliostat dust removal method, when the electric driving device 5 drives the brush roller 1 to rotate downwards, the traction cable 3 is unreeled for a long time, and because the outer diameter of the brush roller 1 is larger than the winding roller 103, the rotating linear speed of the contact part between the brush bristles 102 of the brush roller 1 and the mirror surface of the heliostat 2 in the falling process is higher than that of the brush roller 1RGreater than the falling speed of the brush roller 1VThe speed difference is generated, and the brush and the heliostat 2 mirror surface slide relatively due to the speed difference in the falling motion process, so that the brush roller 1 performs rolling brushing on the heliostat 2 mirror surface, and accumulated dust on the heliostat 2 mirror surface is removed.
When the electric driving device 5 drives the brush roller 1 to rotate upwards, the traction cable 3 is wound on the winding roller 103, the free length of the traction cable 3 is reduced, the position of the brush roller 1 is raised in the rotating process, and the rotating speed of the motor 502 is used for controlling the raising speed of the brush roller 1.
As shown in FIG. 4, the heliostat 2 with a certain angle with the ground is supported by the supporting column 6 of the heliostat 2, and the falling speed of the brush roller 1 on the mirror surface of the heliostat 2VEqual to the linear speed of the winding roller 103 for rotating and unwinding. Since the diameter of the brush roller 1 is larger than that of the winding roller 103, the rotational linear velocity of the contact portion of the brush bristles 102 and the heliostat 2 during the falling processRGreater than the falling speed of the brush roller 1VA speed difference is generated.
When the electric driving device 5 drives the brush roller 1 to rotate upwards, the traction cable 3 is wound on the winding roller 103, the free length of the traction cable 3 is reduced, and the position of the brush roller 1 is lifted in the rotating process. When the electric driving device 5 drives the brush roller 1 to reversely rotate downwards, the traction cable 3 is paid out from the winding roller 103, the free length of the traction cable 3 is increased, the position of the brush roller 1 is reduced in the rotating process, and the rotating speed of the motor 502 is used for controlling the reducing speed of the brush roller 1.
In conclusion, according to the mirror surface traction type automatic dust removal device for the photothermal heliostat, provided by the invention, the eccentric friction force between the brush and the mirror surface generated by gravity traction is fully utilized according to the operation rule of the heliostat 2, so that the floating dust on the mirror surface can be effectively removed; the dust removal device has the advantages of simple structure, low cost of each component, no need of manual maintenance, energy conservation and remarkable cost advantage.
This device extensive applicability is extensive, because central roller 101 and brush etc. of this device all can conveniently customize and assemble, to not unidimensional heliostat 2, diameter, brush model and the length of corresponding regulation central roller 101. Meanwhile, the method can be applied to different sites, is suitable for dry, dusty and water resource-deficient areas such as deserts and plateaus, and is also suitable for cold weather environments with low temperature.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (9)
1. The utility model provides an automatic dust collector of mirror surface towed light and heat heliostat which characterized in that: including brush roller and electric drive device, the brush roller matches with heliostat mirror surface contact and both lengths, the both ends of brush roller have all linked firmly the wire winding roller, electric drive device coaxial arrangement is at the wire winding roller both ends, the winding has the haulage cable on the wire winding roller, the haulage cable other end sets firmly on the heliostat top, the external diameter D of wire winding roller is less than the external diameter D0 of brush roller.
2. The automatic dust removing device for mirror-surface traction type photo-thermal heliostat of claim 1, wherein: the electric driving device comprises a motor, a sliding support and a speed reducer, wherein the motor is installed on the sliding support, an output shaft of the motor is connected with the speed reducer, and an output shaft of the speed reducer is connected with the brush roller.
3. The automatic dust removing device for mirror-surface traction type photo-thermal heliostat of claim 1, wherein: the utility model discloses a heliostat, including heliostat, sun-shading protective cover, traction cable, winding roller, the symmetry of heliostat top is equipped with the sun-shading protective cover, be equipped with on the sun-shading protective cover and hang the fulcrum, the other end of traction cable links firmly with hanging the fulcrum, and the straight line at two fulcrum places of hanging is parallel with the winding roller, the direction perpendicular to winding roller of traction cable.
4. The automatic dust removing device for mirror-surface traction type photo-thermal heliostat of claim 1, wherein: the lower end face of the heliostat is connected with a supporting upright post through a rotating shaft.
5. The automatic dust removing device for mirror-surface traction type photo-thermal heliostat of claim 1, wherein: the difference between the outer diameter D of the winding roller and the outer diameter D0 of the brush roller is 15-45 mm.
6. The automatic dust removing device for mirror-surface traction type photo-thermal heliostat of claim 2, wherein: the sliding support comprises a support and a supporting wheel set, the speed reducer is arranged on the support, and the support covers the winding roller;
the middle part of the support is arc-shaped, the two ends of the support are symmetrically connected with the supporting wheel set through the horizontal plate, the supporting wheel set is composed of an upper supporting wheel and a lower supporting wheel, the upper supporting wheel and the lower supporting wheel are respectively arranged on the upper end surface and the lower end surface of the heliostat, and the upper supporting wheel and the lower supporting wheel are connected through the connecting plate.
7. A heliostat dust removal method, which adopts the mirror surface traction type photothermal heliostat automatic dust removal device of claim 2, characterized in that: the electric driving device drives the brush roller and the winding roller to synchronously rotate upwards or downwards, and the brush on the brush roller and the heliostat mirror surface generate relative sliding, so that the brush roller performs rolling brushing on the heliostat mirror surface, and accumulated dust on the heliostat mirror surface is removed.
8. A heliostat dust removal method according to claim 7, wherein: when the electric driving device drives the brush roller to rotate downwards, the traction cable is unreeled for lengthening, and because the outer diameter of the brush roller is larger than the wire winding roller, the rotating linear speed of the brush roller and the contact part of the heliostat mirror surface in the falling processRGreater than the falling speed of the brush rollerVAnd the speed difference is generated, and the brush and the heliostat mirror surface slide relatively due to the speed difference in the falling motion process, so that the brush roller performs rolling brushing on the heliostat mirror surface to remove dust deposited on the heliostat mirror surface.
9. A heliostat dust removal method according to claim 7, wherein: when the electric driving device drives the brush roller to rotate upwards, the traction cable is wound on the winding roller, the free length of the traction cable is reduced, the position of the brush roller is raised in the rotating process, and the rotating speed of the motor is used for controlling the raising speed of the brush roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110807012.5A CN113531923A (en) | 2021-07-16 | 2021-07-16 | Automatic dust removal device and dust removal method for mirror surface traction type photo-thermal heliostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110807012.5A CN113531923A (en) | 2021-07-16 | 2021-07-16 | Automatic dust removal device and dust removal method for mirror surface traction type photo-thermal heliostat |
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| Publication Number | Publication Date |
|---|---|
| CN113531923A true CN113531923A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110807012.5A Pending CN113531923A (en) | 2021-07-16 | 2021-07-16 | Automatic dust removal device and dust removal method for mirror surface traction type photo-thermal heliostat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976490A (en) * | 2021-10-26 | 2022-01-28 | 中国电力工程顾问集团西北电力设计院有限公司 | Self-cleaning device for photo-thermal power generation heliostat |
-
2021
- 2021-07-16 CN CN202110807012.5A patent/CN113531923A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976490A (en) * | 2021-10-26 | 2022-01-28 | 中国电力工程顾问集团西北电力设计院有限公司 | Self-cleaning device for photo-thermal power generation heliostat |
| CN113976490B (en) * | 2021-10-26 | 2023-02-24 | 中国电力工程顾问集团西北电力设计院有限公司 | Self-cleaning device for photo-thermal power generation heliostat |
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