CN115664344B - Device and method for automatically alarming faults of photovoltaic power station - Google Patents
Device and method for automatically alarming faults of photovoltaic power station Download PDFInfo
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- CN115664344B CN115664344B CN202211410393.4A CN202211410393A CN115664344B CN 115664344 B CN115664344 B CN 115664344B CN 202211410393 A CN202211410393 A CN 202211410393A CN 115664344 B CN115664344 B CN 115664344B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000428 dust Substances 0.000 claims abstract description 72
- 238000012544 monitoring process Methods 0.000 claims abstract description 37
- 238000004140 cleaning Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 4
- 231100000719 pollutant Toxicity 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 239000012459 cleaning agent Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 11
- 230000003749 cleanliness Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 5
- 239000002585 base Substances 0.000 description 8
- 238000001802 infusion Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- YLUIKWVQCKSMCF-UHFFFAOYSA-N calcium;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Ca+2] YLUIKWVQCKSMCF-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Cleaning In General (AREA)
Abstract
The invention discloses a device and a method for automatically alarming faults of a photovoltaic power station, which belong to the field, and comprise a support plate, wherein the upper side surface of the support plate is fixedly connected with the photovoltaic plate, a base is arranged below the support plate, the support plate is fixedly connected with the base through a bracket, and a cleaning mechanism is arranged on the outer side of the photovoltaic plate; the cleaning mechanism comprises sliding plates which are symmetrically distributed on the left end and the right end of the photovoltaic plate and are of L-shaped structures, sliding rails are symmetrically and fixedly connected to the left side and the right side of the lower side of the supporting plate, idler wheels are arranged in the sliding rails corresponding to the sliding plates, the idler wheels are fixedly connected with the sliding plates through rotating shafts, and roll shafts are rotatably connected to the center positions of the corresponding sides of the vertical portions of the two sliding plates and the photovoltaic plate. The solar module can continuously measure the transmission loss caused by pollutants on glass through the dust monitoring sensor, so that the reduction amount of sunlight reaching the solar module is calculated, when the reduction amount reaches the alarm threshold value, the dust monitoring sensor transmits signals to the controller, and the controller starts the cleaning mechanism to clean dust on the surface of the photovoltaic panel.
Description
Technical Field
The invention relates to the field, in particular to a device and a method for automatically alarming faults of a photovoltaic power station.
Background
Common faults of a photovoltaic power plant include quality problems of components and inverters, circuit layout, dust, serial-parallel loss, cable loss and the like, and the factors influence the power generation capacity of the photovoltaic power plant. Among them, dust is the first major influencing factor. The influence of dust on photovoltaic power plants is mainly: the light reaching the component is shielded, so that the generated energy is influenced, the heat dissipation is influenced, the conversion efficiency is influenced, the dust with acid and alkali is deposited on the surface of the component for a long time, the surface roughness is caused by the erosion of the surface, the further accumulation of the dust is facilitated, and meanwhile, the diffuse reflection of sunlight is increased.
At present, the photovoltaic panel is mainly cleaned manually or irregularly through a sprinkler, and due to the lack of an automatic alarm device, the photovoltaic panel cannot be cleaned timely when more dust is accumulated on the surface of the photovoltaic panel, so that the power generation efficiency is seriously affected.
The Chinese patent with the publication number of CN214799414U discloses an abnormal photovoltaic power generation automatic alarm device, a technical scheme is provided, a photovoltaic cell panel is converted into electric energy through absorbing solar energy and enters a detection box through a cable, the detection component detects the intensity of current and sends detection information into an analysis component for analysis, when the dust amount on the surface of the photovoltaic cell panel is overlarge, the solar energy absorption capacity of the photovoltaic cell panel becomes low, the current becomes weak, when the lowest threshold value is reached, the analysis component sends an alarm signal through a processor component and a signal transceiver, and simultaneously, the analysis component synchronously sends alarm information to a central control room through an information transmission connector, the alarm signal contains coordinates of the photovoltaic cell panel, the coordinates are received by nearby staff and a cleaning double-rail vehicle, the cleaning double-rail vehicle moves to the position of the photovoltaic cell panel according to the coordinates, water in the water tank is pumped out through a water spraying cleaning arm, and dust on the surface of the photovoltaic cell panel is cleaned.
Although the dust on the surface of the photovoltaic cell panel can be cleaned by spraying water through the water pump, the dust contains a large amount of calcium magnesium oxide, and when the dust on the surface of the photovoltaic cell panel encounters rainfall, a small amount of calcium magnesium ions are dissolved into the rainwater and are attached to the surface of the photovoltaic cell panel again. And a thicker and hard calcium-magnesium scale layer is formed on the surface of the photovoltaic module. Once the scale is formed, the scale is difficult to remove by only spraying water through a water pump, so that the power generation effect of the photovoltaic module is seriously affected.
For this purpose, a device and a method for automatic warning of faults in a photovoltaic power station are proposed.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a device and a method for automatically alarming faults of a photovoltaic power station, which can be realized.
In order to solve the problems, the invention adopts the following technical scheme.
The device and the method for automatically alarming faults of the photovoltaic power station comprise a support plate, wherein the upper side surface of the support plate is fixedly connected with a photovoltaic plate, a base is arranged below the support plate, the support plate is fixedly connected with the base through a support, and a cleaning mechanism is arranged on the outer side of the photovoltaic plate;
the cleaning mechanism comprises sliding plates of L-shaped structures symmetrically distributed at the left end and the right end of the photovoltaic plate, sliding rails are symmetrically and fixedly connected to the left side and the right side of the lower side of the support plate, idler wheels are arranged in the sliding rails and correspond to the sliding plates, the idler wheels are fixedly connected with the sliding plates through rotating shafts, a roll shaft is rotatably connected to the central positions of the two sides of the vertical parts of the sliding plates and the photovoltaic plate, a brush roll is fixedly connected to the annular outer side of the roll shaft, a motor is fixedly connected to the lower side of the parallel part of the sliding plates and the photovoltaic plate on the right side, a first gear is fixedly connected to the end part of an output shaft of the motor, a second gear is fixedly sleeved on the annular outer side, which is close to the lower end of the roll shaft, corresponding to the first gear, and is in transmission connection with the second gear through a synchronous belt, the upper end position of the support plate is fixedly connected with a toothed plate, and the annular outer side of the roll shaft is fixedly sleeved with a third gear meshed with the toothed plate;
the dust monitoring device comprises a sliding rail, a dust monitoring sensor, a storage battery, a controller and a motor, wherein the dust monitoring sensor is fixedly connected with the two upper side surfaces of the sliding rail together, the storage battery is fixedly connected with the lower side surface of the supporting plate, the storage battery is arranged on the rear side of the inner bottom surface of the storage battery, and the controller is arranged on the front side of the inner bottom surface of the storage battery.
Further, the vertical part of the sliding plate on the right side is fixedly connected with a middle box through a fixing plate of an L-shaped structure, a reciprocating screw rod is rotationally connected to the center positions of the left side surface and the right side surface inside the middle box, and a piston is connected to the reciprocating screw rod in a spiral transmission manner.
Further, the left end of the reciprocating screw rod penetrates through the middle box and is provided with a first connecting groove, a first connecting shaft is fixedly connected to the center position of the right side face of the first gear, and the first connecting shaft is fixedly connected with the first connecting groove through a one-way bearing.
Further, the roller is hollow structure, and the roller right-hand member rotates to be connected with rotary joint, rotary joint passes through transfer line and middle case right flank lower extreme intercommunication, a plurality of overflow hole that runs through to the inside central point of roller has been seted up along axial equidistance to the annular lateral surface of roller, base up end central point puts fixedly connected with liquid case, liquid case right flank lower extreme passes through feed liquor pipe and middle case downside right-hand member intercommunication.
Further, the left side the vertical part left surface of slide passes through fixed block fixedly connected with spiral case, spiral case inside central point puts and rotates through the second connecting axle and be connected with the impeller, the roller left end runs through left side slide and has seted up the second spread groove, the second connecting axle passes through one-way bearing and second spread groove fixed connection.
Further, two the mutually corresponding one side of slide and photovoltaic board perpendicular part is with the roller around symmetry fixedly connected with branch pipe, the annular lateral surface intercommunication of spiral case has the raceway, the delivery port position intercommunication of raceway has the three-way pipe, two delivery ports of three-way pipe communicate with two branch pipes respectively, the annular lateral surface of branch pipe has a plurality of shower nozzle towards the brush roller and the equidistant intercommunication of one side of photovoltaic board contact along the axial, the annular lateral surface of branch pipe and the one side fixedly connected with shovel board of shower nozzle symmetry.
Further, the left side of the spiral case is provided with a water tank, the lower end face of the water tank is communicated with the center position of the left side face of the spiral case through a water inlet pipe, a support with a U-shaped structure is symmetrically and fixedly connected to the front and the back of the lower end face of the water tank, and the lower end face of the support is fixedly connected with a base through a connecting plate.
Further, draw-in grooves have been seted up to both sides symmetry around the water tank up end, all the joint has triangle-shaped structure's cardboard in the draw-in groove, fixedly connected with filter screen between two cardboard.
Further, the lower end face of the support plate is close to the protruding blocks of a plurality of hemispherical structures in the longitudinal horizontal equidistant mode, the right side of the support plate is fixedly connected with three sleeves in the longitudinal horizontal equidistant mode of the protruding blocks corresponding to the upper side face of the parallel portion of the sliding plate, and the inner bottom faces of the sleeves are all connected with elastic blocks through springs.
A method for an apparatus for automatic warning of faults in a photovoltaic power plant, characterized by: the method comprises the following steps:
s1: the upper side of the dust monitoring sensor is kept flush with the upper side of the photovoltaic panel, the transmission loss caused by pollutants on glass is continuously measured through the dust monitoring sensor, so that the reduction amount of sunlight reaching the solar module is calculated, when the reduction amount reaches an alarm threshold value, the dust monitoring sensor transmits a signal to the controller, and the controller starts the cleaning mechanism to clean dust on the surface of the photovoltaic panel;
s2: the initial state of the brush roller is positioned at the rearmost position of the sliding rail, and when the brush roller moves towards the position of the dust monitoring sensor, the brush roller continuously rotates under the drive of the roller shaft, so that dust attached to the surface of the photovoltaic panel is wiped;
s3: in the process that the brush roller moves to the dust monitoring sensor, the cleaning agent in the liquid tank is intermittently input into the roller shaft through the middle tank and then flows to the surface of the photovoltaic panel through the overflow holes on the roller shaft, so that the cleaning effect on the scale is improved;
s4: the brush roller moves backwards after moving through the position of the dust monitoring sensor, at the moment, the cleaning agent stops being supplied, clean water in the water tank is sucked into the branch pipe through the impeller, and then is sprayed to the surface of the photovoltaic panel through the spray head to wash the cleaning agent and dust, so that the cleanliness of the surface of the photovoltaic panel is ensured.
Compared with the prior art, the invention has the advantages that:
1. according to the scheme, the rotatable brush roller is arranged on the surface of the photovoltaic plate, and the brush roller can wipe the surface of the photovoltaic plate in the process of moving back and forth along the photovoltaic plate, so that the cleaning effect on dust is improved.
2. According to the scheme, the cleaning agent is intermittently input into the roller shaft in the process of forward movement of the brush roller, flows to the surface of the photovoltaic panel through the overflow hole, and then is matched with the rotating brush roller and the shovel plate, so that the cleaning effect on the scale can be improved.
3. This scheme is at the in-process that the brush roll reset backward, through inside the clear water in the impeller draws in two branch pipes respectively, the clear water spouts the contact position of brush roll and photovoltaic board through the shower nozzle on two branch pipes to dust, incrustation scale and the sanitizer on the surface of photovoltaic board and the brush roll will be attached to wash cleanly, guaranteed the cleanliness of photovoltaic board.
Drawings
FIG. 1 is a front perspective view of the overall structure of the present invention;
FIG. 2 is a bottom perspective view of the overall structure of the present invention;
FIG. 3 is an exploded view of the manifold and skid plate of the present invention;
FIG. 4 is a schematic illustration in semi-section of FIG. 1 of the present invention;
FIG. 5 is an exploded view of a second connecting shaft and roller shaft according to the present invention;
FIG. 6 is an exploded view of the first connecting shaft and reciprocating screw of the present invention;
FIG. 7 is an enlarged schematic view of the invention at A in FIG. 4;
fig. 8 is an enlarged schematic view of the invention at B in fig. 4.
The reference numerals in the figures illustrate:
1. a support plate; 11. a photovoltaic panel; 12. a bracket; 13. a base; 14. a dust monitoring sensor; 15. placing a box; 16. a storage battery; 17. a controller; 18. a toothed plate; 2. a slide plate; 21. a slide rail; 22. a roller; 23. a motor; 24. a first gear; 25. a second gear; 26. a roll shaft; 27. a brush roller; 28. an overflow aperture; 29. a third gear; 3. an intermediate box; 31. a fixing plate; 32. a first connecting shaft; 33. a first connection groove; 34. a reciprocating screw rod; 35. a piston; 36. an infusion tube; 37. a rotary joint; 38. a liquid inlet pipe; 39. a liquid tank; 4. a sleeve; 41. a spring block; 42. a bump; 5. a water inlet pipe; 6. a volute; 61. an impeller; 62. a second connecting shaft; 63. a second connecting groove; 64. a fixed block; 65. a water pipe; 66. a three-way pipe; 67. a branch pipe; 68. a spray head; 69. a shovel plate; 7. a water tank; 71. a clamping groove; 72. a clamping plate; 73. a filter screen; 74. a support; 75. and (5) connecting a plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Example 1:
referring to fig. 1 to 8, a device and a method for automatically alarming faults of a photovoltaic power station comprise a support plate 1, wherein a photovoltaic plate 11 is fixedly connected to the upper side surface of the support plate 1, a base 13 is arranged below the support plate 1, the support plate 1 is fixedly connected with the base 13 through a support 12, and a cleaning mechanism is arranged on the outer side of the photovoltaic plate 11;
the cleaning mechanism comprises L-shaped sliding plates 2 symmetrically distributed at the left end and the right end of the photovoltaic plate 11, sliding rails 21 are symmetrically and fixedly connected to the left side and the right side of the lower side of the support plate 1, idler wheels 22 are arranged in the sliding rails 21 and correspond to the sliding plates 2, the idler wheels 22 are fixedly connected with the sliding plates 2 through rotating shafts, a roll shaft 26 is rotatably connected to the central position of one side of the vertical parts of the two sliding plates 2 and the photovoltaic plate 11, a brush roll 27 is fixedly connected to the annular outer side of the roll shaft 26, a motor 23 is fixedly connected to the lower side of the parallel part of the right side sliding plate 2 and the photovoltaic plate 11, a first gear 24 is fixedly connected to the end part of an output shaft of the motor 23, a second gear 25 is fixedly sleeved on the annular outer side, which is close to the lower end of the roll shaft 26, corresponding to the first gear 24, and the first gear 24 is in transmission connection with the second gear 25 through a synchronous belt, the upper end position of the support plate 1 is fixedly connected with a toothed plate 18, and a third gear 29 meshed with the toothed plate 18 is fixedly sleeved on the annular outer side of the roll shaft 26;
the dust monitoring sensor 14 is fixedly connected to the upper side surfaces of the two sliding rails 21, the placement box 15 is fixedly connected to the middle position of the lower side surface of the support plate 1, the storage battery 16 is arranged on the rear side of the inner bottom surface of the placement box 15, the controller 17 is arranged on the front side of the inner bottom surface of the placement box 15, and the dust monitoring sensor 14, the storage battery 16, the controller 17 and the motor 23 are electrically connected.
By adopting the technical scheme, the model of the dust monitoring sensor 14 is YGF1, the upper side surface of the dust monitoring sensor 14 and the upper side surface of the photovoltaic panel 11 are always kept flush, so that the upper side surface of the dust monitoring sensor 14 can keep the same dust accumulation degree as the upper side surface of the photovoltaic panel 11, the dust monitoring sensor 14 measures and calculates the surface cleanliness, the cleanliness is reduced from 100% to 0% all the way, when the cleanliness is reduced to 20%, the dust monitoring sensor 14 transmits an alarm signal to the controller 17 and a central control room, the controller 17 receives the signal and then controls the output shaft of the motor 23 to forward rotate, thereby driving the first gear 24 to forward rotate, driving the second gear 25 to forward rotate together, driving the third gear 29 to forward rotate, and as the roller 22 is fixedly connected with the sliding plate 2 through the rotating shaft, and the rollers 22 in each slide rail 21 are longitudinally and equidistantly provided with three, so that the stability of the slide plates 2 is ensured, the roller shafts 26 can move forwards along the photovoltaic plates 11 due to the engagement of the third gears 29 and the toothed plates 18, so that the two slide plates 2 are driven to move forwards along the slide rails 21, the brush rollers 27 rotate along with the roller shafts 26 in the forward moving process of the slide plates 2, so that the upper side surfaces of the photovoltaic plates 11 are wiped, when the brush rollers 27 pass through the dust monitoring sensors 14, dust on the upper side surfaces of the dust monitoring sensors 14 is removed, at the moment, the controller 17 controls the output shafts of the motors 23 to rotate reversely, so that the slide plates 2 are driven to slide backwards for reset, the brush rollers 27 continuously rotate reversely in the resetting process of the slide plates 2, so that the upper side surfaces of the photovoltaic plates 11 are wiped again, the cleaning effect of the photovoltaic plates 11 is improved, the rollers 22 are arranged in the slide rails 21 to reduce the abrasion between the slide plates 2 and the slide rails 21, through the combination of the alarming and cleaning modes, operation and maintenance personnel of the photovoltaic power station do not need to visually observe the thickness of dust on the side surface of the photovoltaic panel 11 through experience and clean the dust, so that the loss of power generation efficiency and the waste of cleaning cost are avoided, the photovoltaic panel 11 is electrically connected with the storage battery 16, and a part of electric energy generated by the photovoltaic panel 11 is stored in the storage battery 16 to supply power to the whole circuit system, and the normal operation of a cleaning mechanism is ensured; after the computer of the central control room receives the alarm signal, the staff can observe the alarm position through the camera for calling the alarm position, if the alarm signal is continuously transmitted to the central control room, other faults exist at the alarm position, at the moment, the staff can complete the maintenance of the alarm position so as to ensure the normal use of the photovoltaic panel 11, and if the alarm signal is intermittently transmitted to the central control room, the normal operation of the cleaning mechanism is illustrated, the staff can not arrive at the alarm position, and the labor cost is saved.
As shown in fig. 1, fig. 3, fig. 4, fig. 6 and fig. 8, the vertical portion of the right slide plate 2 is fixedly connected with the middle box 3 through the fixing plate 31 with an L-shaped structure, the center position of the left side and the right side in the middle box 3 is rotationally connected with the reciprocating screw rod 34, the piston 35 is spirally connected with the reciprocating screw rod 34, the left end of the reciprocating screw rod 34 penetrates through the middle box 3 and is provided with the first connecting groove 33, the center position of the right side of the first gear 24 is fixedly connected with the first connecting shaft 32, the first connecting shaft 32 is fixedly connected with the first connecting groove 33 through a one-way bearing, the roll shaft 26 is in a hollow structure, the right end of the roll shaft 26 is rotationally connected with the rotary joint 37, the rotary joint 37 is communicated with the lower end of the right side of the middle box 3 through the infusion tube 36, a plurality of overflow holes 28 penetrating to the center position in the middle box 26 are axially and equidistantly arranged on the annular outer side of the roll shaft 26, the center position of the upper end surface of the base 13 is fixedly connected with the liquid box 39, and the lower end of the right side of the liquid box 39 is communicated with the lower end of the middle box 3 through the liquid inlet tube 38.
By adopting the technical scheme, because the first connecting shaft 32 is fixedly connected with the first connecting groove 33 at the left end of the reciprocating screw rod 34 through the one-way bearing, when the first gear 24 rotates positively, the first connecting shaft 32 and the one-way bearing in the first connecting groove 33 are in a clamping state, so that the reciprocating screw rod 34 is driven to rotate, the middle box 3 is filled with cleaning agent initially, the piston 35 is positioned at the leftmost side in the middle box 3, the outer edge of the piston 35 is fixedly connected with a sealing gasket, the connecting position of the piston 35 and the reciprocating screw rod 34 is fixedly connected with a sealing ring, so that leakage of the cleaning agent in the movement process of the piston 35 is avoided, when the reciprocating screw rod 34 rotates, the piston 35 starts to slide rightwards, in the process, the one-way valve in the liquid inlet pipe 38 is closed, the one-way valve in the liquid conveying pipe 36 is opened, so that the cleaning agent in the middle box 3 is continuously input into the roll shaft 26 with a hollow structure through the liquid conveying pipe 36, the roller shaft 26 is connected with the infusion tube 36 through the rotary joint 37, so that when the roller shaft 26 rotates, the cleaning agent can still be input into the roller shaft 26, the cleaning agent entering the roller shaft 26 flows out through the overflow hole 28, the brush roller 27 matched with the rotation can deeply clean scale and dust attached to the upper side surface of the photovoltaic panel 11, the cleaning effect of the photovoltaic panel 11 is improved, the brush roller 27 can also be matched with the cleaning agent to clean stains attached to the upper side surface of the dust monitoring sensor 14 when passing through the upper side surface of the dust monitoring sensor 14, the dust monitoring sensor 14 is ensured to have good measurement precision, when the piston 35 moves to the rightmost side in the middle box 3, the piston 35 starts to move leftwards, in the process, the one-way valve in the infusion tube 38 is opened, the one-way valve in the infusion tube 36 is closed, therefore, the cleaning agent in the liquid tank 39 is continuously supplemented into the middle tank 3 through the liquid inlet pipe 38, intermittent supplement of the cleaning agent is obtained in the roller shaft 26, waste caused by excessive cleaning agent delivery can be prevented, the first gear 24 is reversed in the process of sliding and resetting the sliding plate 2 backwards, and at the moment, the first connecting shaft 32 and the one-way bearing in the first connecting groove 33 are in an active state, so that the reciprocating screw 34 stops rotating, and further, the supply of the cleaning agent is stopped, and water spraying cleaning is performed later.
As shown in fig. 1, fig. 3, fig. 4, fig. 5 and fig. 7, the vertical part left surface of the left slide plate 2 is fixedly connected with a volute 6 through a fixing block 64, the inner central position of the volute 6 is rotationally connected with an impeller 61 through a second connecting shaft 62, the left end of a roll shaft 26 penetrates through the left slide plate 2 and is provided with a second connecting groove 63, the second connecting shaft 62 is fixedly connected with the second connecting groove 63 through a one-way bearing, one side, corresponding to the vertical part of the two slide plates 2 and the photovoltaic plate 11, of the roll shaft 26 is fixedly connected with a branch pipe 67 in front and back symmetry, the annular outer side of the volute 6 is communicated with a water delivery pipe 65, the water outlet position of the water delivery pipe 65 is communicated with a three-way pipe 66, two water outlets of the three-way pipe 66 are respectively communicated with the two branch pipes 67, one side, which faces the brush roll 27 contacts the photovoltaic plate 11, of the annular outer side of the branch pipe 67 is axially equidistantly communicated with a plurality of spray heads 68, one side, which is symmetrical with the spray head 68, is fixedly connected with a shovel plate 69, the left side of the volute 6 is provided with a water tank 7, the lower end surface of the water tank 7 is communicated with the left side of the spray plate through a water inlet pipe 5, the left side of the spray head 7, the water tank 7 is fixedly connected with the central position of the left side of the roll 7 through a water inlet pipe 5, the corresponding to the left side of the spray head 7, the water tank 7, the front and the front end of the opposite end of the spray head 7 is fixedly connected with a clamp 74 through a clamp plate 75, the front and the front end face of the symmetric end 74, which is fixedly connected with a clamp plate 72, and the clamp plate 72, and two sides of the clamp plate 13, and the clamp plate 72 are fixedly connected with the clamp plate 72.
By adopting the technical scheme, in the forward movement process of the slide plate 2, the roller shaft 26 rotates positively, in the process, the second connecting shaft 62 and the one-way bearing in the second connecting groove 63 at the left end of the roller shaft 26 are in a movable connection state, so that the impeller 61 cannot rotate, when the second connecting shaft 62 slides backwards and resets on the slide plate 2, the roller shaft 26 rotates reversely, in the process, the second connecting shaft 62 and the one-way bearing in the second connecting groove 63 at the left end of the roller shaft 26 are in a clamping connection state, so that the impeller 61 rotates, centrifugal force is generated by rotation of the impeller 61, clean water in the water tank 7 is sucked into the volute 6, the clean water is thrown to the inner side wall of the volute 6 under the action of the centrifugal force, low pressure is generated at the center position of the impeller 61 under the action of the centrifugal force, so that cleaning in the volute 6 is continuously pumped into the three-way pipe 66 through the water conveying pipe 65 under the action of external atmospheric pressure, the clean water entering the branch pipe 67 is sprayed to the contact position of the brush roller 27 and the photovoltaic panel 11 through the spray head 68 after being respectively shunted into the two branch pipes 67 through the two water outlets of the three-way pipe 66, so that the dust monitoring sensor 14 mixed with scale, dust and cleaning agent and the upper side surface of the photovoltaic panel 11 are cleaned, the cleanliness of the surface of the photovoltaic panel 11 is ensured, meanwhile, the brush roller 27 is cleaned, the spade 69 on the branch pipe 67 can scoop out stubborn scale and stains attached to the upper side surfaces of the photovoltaic panel 11 and the dust monitoring sensor 14 in the process of moving the slide plate 2 forwards and backwards, the cleaning effect is further improved, the rainwater can be collected through the water tank 7, the water resource is saved, the filter screen 73 on the upper end surface of the water tank 7 can filter the rainwater, the dust is prevented from entering the inside of the water tank 7 to block the water inlet pipe 5, the left side surface and the right side surface of the filter screen 73 are in a downward inclined structure, the dust can naturally fall down conveniently, prevent to pile up too much dust and block up the mesh on the filter screen 73, can make things convenient for follow-up dismantlement filter screen 73 to change through cardboard 72 and draw-in groove 71 joint.
As shown in fig. 2, 3 and 8, the lower end surface of the support plate 1 is close to the bumps 42 of a plurality of hemispherical structures at equal intervals in the longitudinal direction of the right side, the upper side surface of the parallel part of the right sliding plate and the support plate 1 is correspondingly connected with three sleeves 4 at equal intervals in the longitudinal direction of the bumps 42, and the inner bottom surfaces of the sleeves 4 are respectively connected with a spring block 41 through springs.
Through adopting above-mentioned technical scheme, at slide 2 along the in-process of slide rail 21 back-and-forth movement, bullet piece 41 can intermittent type formula make touching lug 42, when bullet piece 41 contact lug 42, receive the extrusion of lug 42 and retract and compress the spring in sleeve 4, after bullet piece 41 leaves lug 42, bullet piece 41 pops out under the resilience effect of spring to striking extension board 1 downside, because bullet piece 41 is provided with three, thereby can form the vibratory force that gets off at extension board 1 downside, and then make photovoltaic board 11 on the extension board 1 take place the vibration, under the vibratory force effect, make the dust and the incrustation scale of adhesion be tremble loose, make things convenient for the clearance of brush roll 27, and the dust and the incrustation scale that the clearance was got off slide to ground more fast under the vibratory force, make the cleaning effect promote greatly.
A method for a device for automatic warning of faults in a photovoltaic power plant, comprising the steps of:
s1: the upper side of the dust monitoring sensor 14 is kept flush with the upper side of the photovoltaic panel 11, the reduction amount of sunlight reaching the solar module is calculated by continuously measuring the transmission loss caused by pollutants on glass, when the reduction amount reaches an alarm threshold value, the dust monitoring sensor 14 transmits a signal to the controller 17, and a cleaning mechanism is started to clean dust on the surface of the photovoltaic panel 11 through the controller 17;
s2: the initial state of the brush roller 27 is positioned at the rearmost position of the slide rail 21, and when the brush roller 27 moves towards the position of the dust monitoring sensor 14, the brush roller 27 is driven by the roller shaft 26 to continuously rotate, so that dust attached to the surface of the photovoltaic panel 11 is wiped;
s3: in the process of moving the brush roller 27 to the position of the dust monitoring sensor 14, the cleaning agent in the liquid tank 39 is intermittently input into the roller shaft 26 through the middle tank 3 and then flows to the surface of the photovoltaic panel 11 through the overflow hole 28 on the roller shaft 26, so that the cleaning effect on the scale is improved;
s4: the brush roller 27 moves back after moving through the position of the dust monitoring sensor 14, at this time, the cleaning agent stops being supplied, clean water in the water tank 7 is sucked into the branch pipe 67 through the impeller 61, and then sprayed to the surface of the photovoltaic panel 11 through the spray head 68 to wash the cleaning agent and dust, so that the cleanliness of the surface of the photovoltaic panel 11 is ensured.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides a device for photovoltaic power plant trouble automatic alarm, includes extension board (1), its characterized in that: the photovoltaic support is characterized in that a photovoltaic plate (11) is fixedly connected to the upper side surface of the support plate (1), a base (13) is arranged below the support plate (1), the support plate (1) is fixedly connected with the base (13) through a support (12), and a cleaning mechanism is arranged on the outer side of the photovoltaic plate (11);
the cleaning mechanism comprises sliding plates (2) which are symmetrically distributed at the left end and the right end of a photovoltaic plate (11) and are of L-shaped structures, sliding rails (21) are symmetrically and fixedly connected to the left side and the right side of the lower side of the supporting plate (1), rolling wheels (22) are arranged in the sliding rails (21) corresponding to the sliding plates (2), the rolling wheels (22) are fixedly connected with the sliding plates (2) through rotating shafts, two rolling shafts (26) are rotatably connected to the central positions of the corresponding sides of the vertical parts of the sliding plates (2) and the photovoltaic plate (11), brush rolls (27) are fixedly connected to the annular outer side of the rolling shafts (26), motors (23) are fixedly connected to the lower side of the parallel parts of the sliding plates (2) and the photovoltaic plate (11), first gears (24) are fixedly connected to the end parts of output shafts of the motors (23), second gears (25) are fixedly sleeved on the annular outer side surfaces, which are close to the lower ends of the rolling shafts (26), second gears (24) are fixedly connected with synchronous belts, and end rings (18) are fixedly connected to the upper end rings (18) of the supporting plate (1);
the dust monitoring sensors (14) are fixedly connected to the upper side surfaces of the two sliding rails (21), a placement box (15) is fixedly connected to the middle position of the lower side surface of the support plate (1), a storage battery (16) is arranged on the rear side of the inner bottom surface of the placement box (15), a controller (17) is arranged on the front side of the inner bottom surface of the placement box (15), and the dust monitoring sensors (14), the storage battery (16), the controller (17) and the motor (23) are electrically connected;
the vertical part of the sliding plate (2) on the right side is fixedly connected with a middle box (3) through a fixing plate (31) with an L-shaped structure, a reciprocating screw rod (34) is rotationally connected to the center positions of the left side surface and the right side surface inside the middle box (3), and a piston (35) is spirally connected to the reciprocating screw rod (34);
the left end of the reciprocating screw rod (34) penetrates through the middle box (3) and is provided with a first connecting groove (33), a first connecting shaft (32) is fixedly connected to the center position of the right side surface of the first gear (24), and the first connecting shaft (32) is fixedly connected with the first connecting groove (33) through a one-way bearing;
the roller shaft (26) is of a hollow structure, the right end of the roller shaft (26) is rotationally connected with a rotary joint (37), the rotary joint (37) is communicated with the lower end of the right side surface of the middle box (3) through a liquid conveying pipe (36), a plurality of overflow holes (28) penetrating to the central position inside the roller shaft (26) are formed in the annular outer side surface of the roller shaft (26) at equal intervals along the axial direction, a liquid box (39) is fixedly connected to the central position of the upper end surface of the base (13), and the lower end of the right side surface of the liquid box (39) is communicated with the right end of the lower side surface of the middle box (3) through a liquid inlet pipe (38);
the lower end face of the support plate (1) is longitudinally and horizontally fixedly connected with a plurality of hemispherical convex blocks (42) close to the right side, the right side of the upper side face of the parallel part of the slide plate and the support plate (1) is longitudinally and horizontally fixedly connected with three sleeves (4) at equal intervals corresponding to the convex blocks (42), and the inner bottom faces of the sleeves (4) are elastically connected with elastic blocks (41) through springs;
the left side surface of the vertical part of the sliding plate (2) on the left side is fixedly connected with a volute (6) through a fixed block (64), the center position inside the volute (6) is rotationally connected with an impeller (61) through a second connecting shaft (62), the left end of the roll shaft (26) penetrates through the left side sliding plate (2) and is provided with a second connecting groove (63), and the second connecting shaft (62) is fixedly connected with the second connecting groove (63) through a one-way bearing;
two the mutually corresponding one side of slide (2) and photovoltaic board (11) perpendicular part is with roller (26) front and back symmetry fixedly connected with branch pipe (67), the annular lateral surface intercommunication of spiral case (6) has raceway (65), the delivery port position intercommunication of raceway (65) has three-way pipe (66), two delivery ports of three-way pipe (66) communicate with two branch pipes (67) respectively, the annular lateral surface of branch pipe (67) has a plurality of shower nozzle (68) towards one side of brush roll (27) and photovoltaic board (11) contact along axial equidistance intercommunication, one side fixedly connected with shovel board (69) of annular lateral surface of branch pipe (67) and shower nozzle (68) symmetry.
2. A device for automatic warning of faults in a photovoltaic power plant as claimed in claim 1, characterised in that: the left side of spiral case (6) is equipped with water tank (7), terminal surface communicates through inlet tube (5) and spiral case (6) left surface central point under water tank (7), symmetrical fixedly connected with U-shaped structure's support (74) around terminal surface under water tank (7), terminal surface and base (13) fixed connection are passed through connecting plate (75) under support (74).
3. A device for automatic warning of faults in a photovoltaic power plant as claimed in claim 2, characterised in that: clamping grooves (71) are symmetrically formed in the front side and the rear side of the upper end face of the water tank (7), clamping plates (72) of triangular structures are clamped in the clamping grooves (71), and a filter screen (73) is fixedly connected between the two clamping plates (72).
4. A method applicable to a device for automatic warning of faults in a photovoltaic power plant as claimed in any of claims 1 to 3, characterized in that: the method comprises the following steps:
s1: the upper side of the dust monitoring sensor (14) is kept flush with the upper side of the photovoltaic panel (11), the reduction amount of sunlight reaching the solar module is calculated by continuously measuring the transmission loss caused by pollutants on glass, when the reduction amount reaches an alarm threshold value, the dust monitoring sensor (14) transmits a signal to the controller (17), and the controller (17) starts a cleaning mechanism to clean dust on the surface of the photovoltaic panel (11);
s2: the initial state of the brush roller (27) is positioned at the rearmost position of the sliding rail (21), and when the brush roller (27) moves towards the dust monitoring sensor (14), the brush roller (27) is driven by the roller shaft (26) to continuously rotate, so that dust attached to the surface of the photovoltaic panel (11) is wiped;
s3: in the process that the brush roller (27) moves to the dust monitoring sensor (14), the cleaning agent in the liquid tank (39) is intermittently input into the roller shaft (26) through the middle tank (3) and then flows to the surface of the photovoltaic panel (11) through the overflow hole (28) on the roller shaft (26), so that the cleaning effect on the scale is improved;
s4: the brush roller (27) moves backwards after moving through the position of the dust monitoring sensor (14), at the moment, the cleaning agent stops being supplied, clean water in the water tank (7) is sucked into the branch pipe (67) through the impeller (61), and then is sprayed to the surface of the photovoltaic panel (11) through the spray head (68) to flush the cleaning agent and dust, so that the cleanliness of the surface of the photovoltaic panel (11) is ensured.
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| WO2018010508A1 (en) * | 2016-07-14 | 2018-01-18 | 北京天诚同创电气有限公司 | Cleaning device and photovoltaic array |
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