CN106391538B - Photovoltaic module belt cleaning device - Google Patents
Photovoltaic module belt cleaning device Download PDFInfo
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- CN106391538B CN106391538B CN201611025354.7A CN201611025354A CN106391538B CN 106391538 B CN106391538 B CN 106391538B CN 201611025354 A CN201611025354 A CN 201611025354A CN 106391538 B CN106391538 B CN 106391538B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
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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
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- Photovoltaic Devices (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a photovoltaic module cleaning device which comprises an on-board cleaning machine and is characterized by further comprising a carrier capable of hoisting the on-board cleaning machine and a mover for driving the carrier to move, wherein the carrier and the on-board cleaning machine are in flexible connection through a connecting part, and a limiting part capable of being clamped with a photovoltaic panel is arranged on the on-board cleaning machine. According to the photovoltaic module cleaning device provided by the invention, the carrier and the shifter are additionally arranged, the carrier is used for lifting the on-board cleaning machine, the on-board cleaning machine can be moved to the next photovoltaic board under the driving of the shifter, and meanwhile, the limiting component is arranged on the on-board cleaning machine, so that the limiting component can be quickly clamped with the photovoltaic board when the carrier places the on-board cleaning machine, and further, the on-board cleaning machine can be quickly replaced. In addition, the device still effectively reduces the collision degree between cleaning machine on the board and the photovoltaic board through the flexible coupling between carrier and the cleaning machine on the board, and then reduces the damage to the photovoltaic board.
Description
Technical Field
The invention relates to the field of photovoltaic module cleaning equipment, in particular to a photovoltaic module cleaning device.
Background
With the requirement of environmental protection and the improvement of sustainable energy demand, the proportion of clean energy in total energy is increased year by year, and the cleaning demand of the photovoltaic module is gradually increased.
Photovoltaic array cleaning has two reasons: firstly, dirt can cause heat conduction difference on the surface of a photovoltaic panel, and finally 'hot spots' are caused to damage a photovoltaic module; secondly, the fouling causes the surface transmittance of the photovoltaic panel to be reduced, thereby affecting the photo-thermal conversion rate of the photovoltaic panel assembly array, namely reducing the power generation efficiency. Therefore, in order to ensure that the generating efficiency is not reduced and avoid the damage of the photovoltaic module, the cleaning of the photovoltaic panel is necessary.
In the prior art, semi-automatic cleaning is generally adopted, and mainly comprises a ground cleaning vehicle and an on-board cleaning machine. The chassis of the ground cleaning vehicle is the same as that of a small excavator, the structure of the mechanical arm is similar to that of an arm of the excavator, and the two tracks drive the ground cleaning vehicle to move forward; the cleaning is completed by a rolling brush at the tail end of the mechanical arm, and water can be sprayed in the cleaning process. For floor-washing vehicles, the following disadvantages are present: (1) the driving speed is slow; 2) the cleaning operation is complex, the requirement on operators is high, the condition that the cleaning rolling brush is in contact with the surface of the photovoltaic panel needs to be concerned while the photovoltaic panel is driven among the arrays, the distance between the cleaning vehicle and the photovoltaic assembly needs to be kept unchanged, otherwise, the cleaning brush head cannot cover the whole height of the photovoltaic panel surface, and the cleaning surface is omitted; (3) the requirement on the road surface is high, when the road surface has a hollow section, particularly when the height difference exists between the tracks on the two sides and the corresponding ground, the vehicle body rolls laterally, and at the moment, the angle deviation occurs between the rolling brush which is originally parallel to the mirror surface and the photovoltaic panel; (4) the ground cleaning vehicle is provided with a cab, cleaning tasks are carried out by manual driving, people with excavator driving experience are needed, moreover, the chassis is driven by an internal combustion engine, manual oiling is needed, the water consumption of a cleaning mode is large, the capacity of a water tank is limited, manual water adding is needed for multiple times in the cleaning process, the speed of the chassis is low, the reciprocating water adding time is long, and the cleaning efficiency is reduced again.
In addition, for the on-board cleaning robot commonly used in the prior art, the on-board cleaning robot is provided with structures such as a translation drive, a power supply and a cleaning rolling brush, directly moves on the photovoltaic board and simultaneously cleans the photovoltaic board, and can be used for dry cleaning; if after extra connecting guide rail transformation has been done between photovoltaic board cluster and the cluster, the board cleaning machine can realize that the board changes the board and washs between the cluster. However, the on-board cleaning robot has several disadvantages: (1) the on-board cleaning robot can only work on a single string of boards, the string-crossing cleaning can be carried out only after the transformation work of additional track connection is carried out between strings, and even if the string-crossing cleaning robot does not complete the line-crossing operation, each line of photovoltaic boards is provided with at least one cleaning robot; (2) if the terrain does not allow all connections between strings (the terrain undulation in a single row is large, the climbing requirement is high), the single row of photovoltaic panels needs more than one panel cleaning machine; (3) cleaning machines people need take the battery or take the panel certainly, and the automobile body is heavier, and climbing ability and whole speed of traveling are all not high, therefore the cleaning efficiency of single robot is lower, and is higher to the topography requirement of arranging the photovoltaic board array. Therefore, in order to achieve a full-coverage cleaning range of a photovoltaic array, the number of on-board cleaning robots to be put into the photovoltaic array is large, and the data is directly proportional to the power generation capacity of a photovoltaic electric field, so that the cost of a large number of fixed cleaning equipment is put into the photovoltaic array, and the workload of daily maintenance of a large number of on-board cleaning robots is also large. In addition, the failure rate of batch equipment rises, and once a failed machine cannot be transferred in time, a single photovoltaic panel is burnt by the hot spot effect, and a fire disaster happens to the whole array in serious cases.
Therefore, how to improve the plate replacement efficiency of the photovoltaic module cleaning device and improve the cruising ability of the cleaning device is a technical problem to be solved by the technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide a photovoltaic module cleaning device which has a plate replacing function and can effectively avoid collision between the device and a photovoltaic plate.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a photovoltaic module belt cleaning device, includes the cleaning machine on the board, still include can with the carrier that the cleaning machine hoisted on the board was hoisted and be used for driving the shifter that the carrier removed, the carrier with through adapting unit flexible coupling between the cleaning machine on the board, and install the spacing part that can with the photovoltaic board joint on the cleaning machine on the board.
Preferably, the on-board cleaning machine comprises a vehicle body frame and a roller brush arranged on the vehicle body frame, one end of the vehicle body frame is provided with a guide wheel which can be followed by the side surface of the upper end of the photovoltaic panel, the other end of the vehicle body frame is provided with a supporting wheel which can be followed by the surface of the photovoltaic panel, and the guide wheel and the supporting wheel are all provided with driving parts.
Preferably, the connecting member is a flexible rope, and the carrier is provided with an electric reel capable of retracting the flexible rope.
Preferably, the mover is provided with a controller and a battery which can supply power to the on-board cleaning machine;
the controller is also used for judging whether the electric quantity of the battery is lower than the warning electric quantity, if so, the mover is controlled to move to a target supply position, and the charging pile is controlled to be started to charge the battery;
the controller is also used for judging whether the battery is fully charged, and if so, controlling the mover to return to the initial position.
Preferably, the shifter is also provided with a water tank which can supply water to the on-board cleaning machine;
the controller is also used for judging whether the water level of the water tank is lower than a warning water level or not, if so, the mover is controlled to move to a target replenishment position, and a water outlet is controlled to be opened to replenish water for the water tank;
the controller is also used for judging whether the water tank is full, and if so, controlling the mover to return to the initial position.
Preferably, the limiting part is two stop blocks which are arranged on one side, close to the upper end of the photovoltaic panel, of the on-board cleaning machine, the stop blocks which are in place can be clamped with the side face of the upper end of the photovoltaic panel, and a stop block arm which can retract the stop blocks which are in place is further arranged on the on-board cleaning machine.
Preferably, the in-place stopper is mounted at one end of the stopper arm, and a spring which can press down the stopper arm is mounted between the other end of the stopper arm and the on-board cleaning machine.
Preferably, still install the electro-magnet and have the slider on the inclined plane on the cleaning machine on the board, the dog arm is close to the gyro wheel is installed to the one end of spring, the spring with the gyro wheel is connected, the electro-magnet is steerable the slider removes in order to drive the gyro wheel reciprocates.
Preferably, each stop dog of taking one's place all installs on it and is used for detecting whether the stop dog of taking one's place with the last end side of photovoltaic board realizes the joint detection sensor that targets in place, the detection sensor that targets in place can send detected signal for superior controller in order to control the stop dog arm is packed up and is opened the washing mode.
Preferably, still install on the dog arm from the universal wheelset of landing, universal wheelset can with the cleaning machine props up from on the board the surface of photovoltaic board, and universal wheelset can with the cleaning machine supports the back of targetting in place on the board with the dog of taking one's place is packed up together.
The photovoltaic module cleaning device provided by the invention comprises an on-board cleaning machine and is characterized by also comprising a carrier capable of hoisting the on-board cleaning machine and a mover for driving the carrier to move, wherein the carrier is in flexible connection with the on-board cleaning machine through a connecting part, and the on-board cleaning machine is provided with a limiting part capable of being clamped with a photovoltaic panel. This photovoltaic module belt cleaning device is through increasing the carrier with the shifter, and utilize the carrier will the cleaning machine on the board lifts up, can be in under the drive of shifter, remove to next photovoltaic board on, simultaneously, through set up on the cleaning machine on the board spacing part, can the carrier is placed during the cleaning machine on the board, quick realization spacing part with the joint of photovoltaic board, and then realize the quick change board of cleaning machine on the board. In addition, the cleaning device component can enable the on-board cleaning machine to achieve the effect that one machine covers multiple rows of photovoltaic panels, the cost of cleaning equipment is reduced, and the device is further effectively reduced in collision degree between the on-board cleaning machine and the photovoltaic panels through flexible connection between the carrier and the on-board cleaning machine, so that damage to the photovoltaic panels is reduced.
In a preferred embodiment, the limiting component is specifically two positioning stoppers arranged on one side of the on-board cleaning machine close to the upper end of the photovoltaic panel, the positioning stoppers can be clamped with the side surface of the upper end of the photovoltaic panel, and a stopper arm capable of retracting the positioning stoppers is further mounted on the on-board cleaning machine. In the above arrangement, the addition of the in-place stopper not only can make the on-board cleaning machine play a guiding role when being placed to a position closer to the surface of the photovoltaic panel, so that the on-board cleaning machine can find the upper edge of the photovoltaic panel as early as possible and fall down along the in-place stopper until the supporting wheels of the on-board cleaning machine also fall onto the surface of the photovoltaic panel, but also can play a role in temporarily bearing the weight of the on-board cleaning machine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a bottom view of one embodiment of a photovoltaic module cleaning apparatus provided in the present invention;
FIG. 2 is a front view of one embodiment of a photovoltaic module cleaning apparatus provided in the present invention;
FIG. 3 is an enlarged schematic view of a portion A of the cleaning apparatus for photovoltaic modules shown in FIG. 2;
wherein: the device comprises a vehicle body frame 1, a roller brush 2, a roller brush 3, a driven wheel 4, a driving wheel 5, a guide wheel 6, a positioning stop dog 7, a universal wheel set 8, an electromagnet 9, a rope anchor point 10), a spring 11 and a position detection sensor 12.
Detailed Description
The core of the invention is to provide a photovoltaic module cleaning device which has a plate replacing function and can effectively avoid the collision between the device and a photovoltaic plate.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, fig. 1 is a bottom view of a photovoltaic module cleaning apparatus according to an embodiment of the present invention; FIG. 2 is a front view of one embodiment of a photovoltaic module cleaning apparatus provided in the present invention; fig. 3 is an enlarged schematic structural view of a portion a of the photovoltaic module cleaning apparatus shown in fig. 2.
In this embodiment, the photovoltaic module cleaning apparatus includes an on-board cleaning machine, a carrier, and a mover.
The carrier can lift the cleaning machine on the board, the mover is used for driving the carrier to move, the cleaning machine on the board is further driven to the next photovoltaic board, meanwhile, flexible connection is carried out between the carrier and the cleaning machine on the board through the connecting component, and in addition, the cleaning machine on the board is provided with the limiting component which can be clamped with the photovoltaic board.
Specifically, the on-board cleaning machine includes a vehicle body frame 1, a moving mechanism, and a cleaning mechanism.
The moving mechanism comprises a supporting wheel and a guide wheel 6, the guide wheel 6 is arranged at one end of the vehicle body frame 1, the guide wheel 6 can roll along the side face of the upper end of the photovoltaic panel, the other end of the vehicle body frame 1 is provided with a supporting wheel which can roll along the surface of the photovoltaic panel, the supporting wheel comprises a driving wheel 5 and a driven wheel 4, driving parts are arranged on the guide wheel 6 and the supporting wheel, and the driving parts can be specifically the combination of a driving motor and a speed reducer.
The cleaning mechanism comprises a roller brush 2, a row brush and the like, a driving motor reducer is also arranged on the roller brush 2, and the roller brush 2 is rotationally connected with the vehicle body frame 1.
Specifically, this photovoltaic module belt cleaning device, through drive wheel 5 in photovoltaic board surface removal, leading wheel 6 leans on at the photovoltaic board side, and leading wheel 6 also takes driving motor, and it has the pushing action to going of cleaning machine on the board, simultaneously because the dead weight restriction, the cleaning machine on the board relies on leading wheel 6 to hang and leans on the photovoltaic board along, can follow steady movement on the photovoltaic board, and the moving speed of drive wheel 5 and leading wheel 6 all can be adjusted through the motor controller who corresponds.
It should be noted that the roller brush 2 is a cylindrical brush made of an abrasion-resistant material, and after the on-board cleaning machine is placed on the photovoltaic panel, the brush has a certain degree of bending amount, that is, extrusion exists between the brush and the photovoltaic panel surface. Meanwhile, one end of the roller brush 2 is connected with the roller brush motor 3 and the speed reducer, the roller brush motor 3 connected with the roller brush 2 is started to drive the roller brush 2 to rotate, and the roller brush 2 and the photovoltaic panel surface are subjected to dry friction to brush away stains on the surface of the photovoltaic panel. And the rotating speed of the roller brush 2 can be adjusted through the rotating speed of the roller brush motor 3, the bending amount of the bristles of the roller brush 2 can also be adjusted, and the rotating speed of the roller brush 2, the bending amount of the bristles, namely the hardness of the bristles and the arrangement density of the bristles are all in direct proportion to the cleaning effect.
On the basis of any embodiment, the limiting parts are two positioning stop blocks 7 which are arranged on one side, close to the upper end of the photovoltaic panel, of the panel cleaning machine, the positioning stop blocks 7 can be clamped with the side face of the upper end of the photovoltaic panel, and stop block arms capable of retracting the positioning stop blocks 7 are further arranged on the panel cleaning machine.
In the above arrangement, the positioning block 7 is located at the upper end of the on-board cleaning machine, it should be noted that the photovoltaic panel is generally placed in an inclined manner, the side with the high horizontal position corresponds to the upper end of the on-board cleaning machine, the on-board cleaning machine runs along the upper edge of the photovoltaic panel, and the position is provided with a pair of side guide wheels 6; the positions of the in-position stop blocks 7 are just on two sides of the side edge guide wheel 6 and are vertical to the length direction of the on-board cleaning machine, and the shape of the stop blocks is like a number 7 when seen from the side surface; the arrangement of the stop 7 in place not only can enable the cleaning machine on the board to play a role in guiding when the cleaning machine is placed to a position close to the surface of the photovoltaic board, so that the cleaning machine on the board can find the upper edge of the photovoltaic board as early as possible and can descend downwards along the stop 7 in place until the supporting wheels of the cleaning machine on the board fall onto the surface of the photovoltaic board, but also the stop 7 in place can play a role in temporarily bearing the weight of the cleaning machine on the board.
Further, since the main purpose of the stop 7 in place is to assist the on-board cleaning machine in guiding, and the stop 7 in place affects the rotation of the guide wheel 6 during normal cleaning, a stop arm capable of retracting the stop 7 in place is further installed on the on-board cleaning machine, the stop 7 in place is installed at one end of the stop arm, and a spring 11 capable of pressing down the stop arm is installed between the other end of the stop arm and the on-board cleaning machine.
Specifically, an electromagnet 9 and a slide block with an inclined plane are further mounted on the cleaning machine on the board, a roller is mounted at one end, close to a spring 11, of a stop dog arm, the spring 11 is connected with the roller, a shell for moving the electromagnet 9 is further arranged on the cleaning machine on the board, a sliding groove for the roller to slide up and down is formed in the side edge of the shell, the electromagnet 9 can control the slide block to move so as to drive the roller to move up and down, the middle of the stop dog arm is hinged with the vehicle body frame 1, one end of the stop dog arm is driven to move up in the process of moving the roller up, and the, namely, one end of the stop block 7 which is arranged in position moves downwards, and the stop block can be used for quickly positioning the cleaning machine on the auxiliary plate when the plate is changed, and in addition, when the slide block moves reversely, one end of the roller and one end of the stop block arm are pulled downwards under the action of the spring 11, one end of the stop block 7 which is installed on the stop block arm in place is folded upwards, and the guide wheel 6 is attached to the photovoltaic panel.
Furthermore, each in-place stop 7 is provided with an in-place detection sensor 12 for detecting whether the in-place stop 7 is clamped with the upper end side face of the photovoltaic panel, and the in-place detection sensor 12 can send a detection signal to an upper controller to control the stop arm to retract and start the cleaning mode.
Specifically, the in-place detection sensor 12 is mounted on the in-place stopper 7, one of the two in-place stoppers 7 is mounted, and when the in-place stopper 7 abuts against the upper edge of the photovoltaic panel, the in-place detection sensor 12 is triggered; when the on-board cleaning machine is completely in place, the two in-place stop blocks 7 are close to the upper edge of the photovoltaic panel at the same time, the two in-place detection sensors 12 are triggered and can keep a certain time, and the upper controller confirms that stable signals of the two sensors are received in the same time, so that the on-board cleaning machine is completely in place, a command for starting a cleaning program is sent out, and meanwhile, the stop block arms are retracted.
Further, still install on the dog arm from the universal wheelset 8 of landing, universal wheelset 8 can prop the cleaning machine on the board from the surface of photovoltaic board to universal wheelset 8 can be followed the dog 7 of taking one's place and packed up together after supporting the cleaning machine on the board in place.
Specifically, the self-sliding universal wheel group 8 is arranged on the belly of the on-board cleaning machine and is used for helping the on-board cleaning machine to smoothly slide down when being just placed on the photovoltaic panel, so that other parts are emptied and the surface of the photovoltaic panel is prevented from being scratched; the self-sliding universal wheel set 8 can be fixedly mounted in the middle of the stop block arm through bolts and moves together with the stop block 7 in place, when the stop block 7 in place acts, the universal wheel set 8 is also in the working position, and when the stop block 7 in place is folded, the universal wheel set 8 is synchronously folded.
In addition to any of the above embodiments, the connection member may be a flexible rope, and the carrier may be provided with an electric reel that can receive and release the flexible rope, but it is needless to say that the gripping manner between the carrier and the on-board cleaning machine may be implemented by a folding hinge connection, a spring 11 connection, or the like, and the carrier and the on-board cleaning machine may be a detachable connection in addition to the non-detachable connection.
Specifically, the releasable connection means that after the on-board cleaning machine completes the board replacement operation, the carrier can be released from the on-board cleaning machine, and the mechanical connection relationship is not maintained, and examples of the manner of such grasping include: adsorbing by an electromagnet; grabbing or clamping by a manipulator and the like; the on-board cleaning machine needs to add two adsorbable points or two handles which can be grabbed or clamped, and the detachable scheme cannot be matched with the subsequent 'increase of cruising ability' and 'increase of cleaning mode', so that the on-board cleaning machine is not further limited in the embodiment;
the non-releasable connection means that the mechanical connection between the carrier and the on-board cleaning machine remains unchanged after the board changing operation is completed. Examples of such a capture mode are: rope connection, folding hinge connection or spring connection, etc.; after considering the implementation effect comprehensively, the embodiment preferably adopts the rope connection.
Examples are illustrated below: the rope anchor points 10 at the two ends of the plate cleaning vehicle are fixed by flexible ropes, the other ends of the rope anchor points are fixed on a tool of the carrier, and meanwhile, an electric winding drum is installed on the tool of the carrier and can wind and unwind the flexible ropes, so that the purpose of lifting and lowering the cleaning machine on the plate is achieved.
After the cleaning machine on the board falls on the surface of the photovoltaic panel, because of the influence of integral adjustment errors, the upper edge of the cleaning machine on the board cannot be ensured to be parallel to the upper edge of the photovoltaic panel, only one locating stop 7 is in contact with the upper edge of the photovoltaic panel at the moment, and the force of the cleaning machine on the whole board sliding down along the surface of the photovoltaic panel is borne by the locating stop 7. At the moment, the weight of the on-board cleaning machine is completely born by the photovoltaic panel, a rope above the on-board cleaning machine becomes loose, the on-board cleaning machine loses the restraint effect, the upper edge of the on-board cleaning machine is not parallel to the upper edge of the photovoltaic panel, the on-board cleaning machine deviating from the gravity center line can be automatically straightened on the principle of being similar to a pendulum, the movement of the on-board cleaning machine is completed by the support of the universal wheel set 8, the upper edge of the on-board cleaning machine on the final board is parallel to the upper edge of the photovoltaic panel, the two in-position stop blocks 7 are tightly attached to the upper edge of the photovoltaic panel, the in-position detection sensors 12 on the in-position stop blocks 7 feed back in-position signals, the mechanism consisting of the electromagnets 9 and the springs 11 lifts the in-position stop blocks 7, the weight of the on-board cleaning machine is born by the side guide wheels 6, and thus the in.
Further, the cleaning device may also add endurance to the on-board cleaning machine, for example, a battery may be mounted on the mover that may power the roller brush 2 as well as the drive components.
Particularly, the mover is also provided with a controller and a battery for supplying power to the on-board cleaning machine, and the battery is preferably a rechargeable battery;
the controller is also used for judging whether the electric quantity of the battery is lower than the warning electric quantity, if so, the mover is controlled to move to the target supply position, and the charging pile is controlled to be started to charge the battery; the controller is also used for judging whether the battery is fully charged, and if so, controlling the mover to return to the initial position.
Specifically, after the controller controls the moving device to move to the target supply position, the controller communicates with the charging pile to confirm that the position is in place, and drives a charging contact of the battery to be in contact with the charging pile to start charging.
According to the arrangement, the mover has the automatic supply capacity, can realize the operation cycle, and can perform the periodical and unmanned work of cleaning the photovoltaic panel.
Meanwhile, a battery electric quantity monitoring part for detecting the electric quantity of the battery is further installed on the battery, and the battery electric quantity monitoring part can send a detection result to the controller. After the battery is fully charged, the battery electric quantity monitoring part can feed back a signal to the upper controller, the upper controller sends a disconnection command, the driving wheel still returns to a working position under the help of the navigation positioning part, and the battery electric quantity monitoring part can also send a signal to the controller when detecting that the electric quantity is lower than the warning electric quantity.
More specifically, enhanced cruising ability is associated with a mechanical connection that does not allow the carrier and the on-board cleaning machine to be disengaged during a board change. The common on-board cleaning machine operates independently, namely, is provided with a power supply or a solar panel. However, the battery weight, the load capacity of the on-board cleaning machine or the power generation efficiency of the solar panel are limited, the cruising ability of the common on-board cleaning machine is poor, and when the requirement of large-area cleaning is met, the cleaning scheme of the common on-board cleaning machine can only be realized by increasing the number of devices, so that the cost investment of the cleaning devices is greatly increased, and a series of burdens are added to the photovoltaic operation and maintenance work. The belt cleaning device that this embodiment provided, owing to realized trading the board function, consequently, requirement to duration further promotes, original battery scheme or solar panel scheme from taking can not satisfy the requirement far away, even battery capacity or solar panel area have been increased, it also needs increase battery power to increase the solar panel area promptly, the complete machine dead weight of cleaning machine further increases on the board, a power for overcoming weight consumption also increases, the cleaning machine dead weight increases simultaneously and can give photovoltaic face and photovoltaic support increase burden on the board, also can lead to the motion performance of self to reduce, for example functioning speed, climbing ability etc.. Therefore, in the embodiment, the flexible connection between the conveyor and the on-board cleaning agent is utilized, the conveyor and the on-board cleaning agent are connected through the flexible rope, the flexible connection is a fixed mechanical connection relationship, the power supply of the on-board cleaning machine can be led out through the flexible rope, the on-board cleaning machine is supplied with power through external equipment, not only is the self weight of the on-board cleaning machine reduced, but also the capacity of an external power supply battery is not limited by the bearing capacity of the photovoltaic panel, and the cruising capacity of the on-board cleaning machine is inevitably improved remarkably under the condition of double management.
Specifically, as the plate replacing of the on-board cleaning machine needs the assistance of the mover and the carrier, the power supply battery of the on-board cleaning machine can be placed on the mover and even can be integrated with the power supply battery of the mover. Power supply and communication cables of the on-board cleaning machine can be connected to the on-board cleaning machine from the mover through equipment such as a mechanical arm and a tool on the carrier, and the like, similar to a flexible rope for placing the board.
On the other hand, the cleaning device can also be provided with a water tank which can supply water to the on-board cleaning machine on the mover. Simultaneously, install the shower nozzle of spout orientation photovoltaic board on the cleaning machine on the board, the water tank is connected with the shower nozzle.
Specifically, the controller is also used for judging whether the water level of the water tank is lower than a warning water level, if so, the shifter is controlled to move to a target replenishment position, and the water outlet is controlled to be opened to replenish water for the water tank; the controller is also used for judging whether the water tank is full, and if so, the driving wheel is controlled to return to the initial position.
Preferably, the water tank is further provided with a water level monitoring part for detecting the water level of the water tank, and the water level monitoring part can send the detection result to the controller. Namely, the water tank is lack of water or full of water, the liquid level monitoring part is triggered, and the upper controller receives a feedback signal to start or end water replenishing work and start or return the shifter.
In the above arrangement, the autonomous replenishment function of the mover is added, which mainly means autonomous charging of the power supply battery of the mover, and the solar photovoltaic array cleaning robot is applied to the solar photovoltaic array cleaning robot, and certainly, the solar photovoltaic array cleaning robot further comprises the replenishment function of autonomous water addition. The automatic replenishment function is mainly established on the basis of automatic navigation, the replenishment point is marked on the path of the navigation system, the mover can move close to the replenishment point along the command of the navigation system after receiving a replenishment command, when the mover is close to the replenishment point, the positioning sensors on the chassis, such as a photoelectric switch, a travel switch and the like can feed back the in-place information of the chassis, and then the corresponding charging pile or the corresponding water outlet is started after receiving the in-place signal, so that charging or water replenishment is started.
More specifically, similar to on-board washers, the on-board washer may transfer its own power requirements to the associated mover, with the associated equipment connected by a cable channel. Therefore, the traveling path of the cable and the communication line in the above scheme can also be changed into the traveling path of the flexible pipeline, so that the mover can convey cleaning resources, such as cleaning water solution, cleaning high-pressure gas and the like, to the on-board cleaning machine through the flexible pipeline; once the cleaning medium is increased, the cleaning mode can be increased, so that the targeted cleaning mode can be selected according to actual needs.
Specifically, the following types of cleaning modes may be included:
1. water cleaning
The water cleaning is a main means for cleaning the photovoltaic panel and an effective means, but with the increase of the photovoltaic power generation area, the lack of water resources and the rough water cleaning mode, the water cleaning mode has the disadvantages of high cost, large influence on the environment, high manpower input and the like; in addition, as mentioned in the background, the roller brush 2 of the ground cleaning vehicle is combined with a water spraying cleaning mode, so that the roller brush 2 at the tail end of the mechanical arm shakes seriously due to the fluctuation of the vehicle body caused by the topography, and directly crushes the photovoltaic panel, therefore, the accident of damaging the photovoltaic panel occurs in the cleaning equipment in multiple applications; the cleaning machine on the board can not clean with water at all due to the size of the cleaning machine on the board, and even if the cleaning machine on the board can be matched with a water tank, the cleaning area is very limited, so that the cleaning machine on the board in the market only has a single roller brush 2 dry cleaning mode.
In the embodiment, a water tank of an on-board cleaning machine is arranged outside and is arranged on a ground shifter, cleaning water is conveyed to the on-board cleaning machine through a flexible pipeline, and the photovoltaic board surface is cleaned through water sprayed out by a plurality of groups of spray heads which cover the whole photovoltaic board surface cleaning width on the on-board cleaning machine; the water pumping equipment is also arranged on the ground shifter, the water pump can press the cleaning water with pressure, and the cleaning water has certain impact force when being sprayed out by the spray head, so that the cleaning water has obvious effect on removing stubborn stains. Meanwhile, according to the water cleaning, a specific cleaning solvent is added into the cleaning water to prepare a cleaning aqueous solution according to the cleaning object, such as oil or crystalline salt contained in the stain component on the surface of the photovoltaic panel, so that the cleaning effect on stubborn stains is more obvious than that of a common roller brush 2 dry brush mode; meanwhile, the water cleaning can also control the temperature of the solution, and spray heads with different calibers can be selected to refine the cleaning mode.
2. High pressure air wash
The high-pressure air washing has the advantages of low cost, small loss and all weather, and can be used as a supplementary mode for water washing; the water washing mode can not work under the low-temperature condition in winter and can not be washed by water in places with water resource shortage, and the advantage of high-pressure air washing is obvious at the moment; the high-pressure air washing object is floating dust on the surface of the photovoltaic panel, the capacity of washing stubborn stains is weaker than that of dry washing and water washing of the roller brush 2, but the high-pressure air washing does not need to consume washing media, the required high-pressure air can be generated by an air pump, the only consumption is electric quantity, but compared with large-capacity water tank load and pumping water power consumption required by water washing, the power consumption of high-pressure washing is not considered, the load of a ground shifter can be reduced by applying the high-pressure washing, and the washing cost is obviously reduced; the specific mode is similar to water cleaning, common air is changed into high-pressure air through a high-pressure air pump arranged on a mover, the high-pressure air is conveyed to an on-board cleaning machine through a mechanical arm and a tool on a carrier through an air path hose, nozzles covering the width of a full photovoltaic board are arranged on the on-board cleaning machine, the high-pressure air passes through the nozzles, covers the photovoltaic board surface to be cleaned in a certain spraying range and spraying speed, blows away floating dust accumulated on the photovoltaic board surface, can completely clean stains out of the surface range of the photovoltaic board by adjusting the arrangement density, the orientation, the air pressure and the like of the nozzles, and does not cause secondary pollution; moreover, the high-pressure air washing is not like dry washing and water washing of the roller brush 2, mechanical scratches or chemical reagent corrosion can not be caused to the tempered glass on the surface of the photovoltaic panel, and the high-pressure air washing is a clean and environment-friendly washing mode in terms of cost and loss.
3. Hybrid cleaning
The mixed cleaning mode refers to the combination of the dry cleaning, the high-pressure air cleaning and the water cleaning of the roller brush 2 in pairs or the combination of the three. The specific mode is as follows:
a. air washing and roller brush 2
High-pressure air washing is used as a conventional cleaning mode, and the roller brush 2 is used as a method for specially cleaning stubborn stains; the brush bristles with high rigidity, namely the hard brush bristles, can be selected, after high-pressure air washing, the cleaning machine on the plate finds the existence of stubborn stains through a mirror surface detection means, the cleaning machine on the plate can be commanded by an upper controller to stay near the stubborn stains, the roller brush 2 is started, and the stubborn stains are removed at fixed points; the cleaning mode is suitable for the conditions of water resource shortage or winter, single stain type, no oil stain and the like.
b. Air washing and water washing
This approach has been used in the automotive cleaning industry, and is known as micro-water cleaning; atomized water particles are carried by high-pressure gas to simulate a storm form, firstly, wind is used for conveying water to strike the mirror surface of the photovoltaic panel, the water particles are spread after impacting the mirror surface at a certain speed, the spreading process of water drops is a dust adsorption process, and then, the subsequent airflow blows away tiny mud points wrapped with dust and moisture, so that the aim of cleaning is fulfilled; the mode replaces the impact action of high-pressure water with air flow, utilizes a small amount of water to dissolve and wrap dust and stains, achieves micro-water cleaning, reduces water resource consumption and simultaneously ensures the cleaning effect.
c. Water washing and dry brush
The principle of the mode is similar to that of 'air washing and water washing', except that the 'air washing and water washing' is used for carrying mud spot stains by means of high-pressure air flow, and the method is used for transferring the stains on the mirror surface after water washing in a scraping strip or brush mechanical mode.
The above-described washing manner is only an example, and the combination manner varies depending on environmental conditions, cleaning objects, and air temperature variations.
The photovoltaic module belt cleaning device that each above-mentioned embodiment provided has increased the duration of a journey of cleaning machine on the board, increases the washing mode of cleaning machine on the board, has improved the cleaning performance and the adaptive capacity to environment of this type of equipment, has reduced and has washd consumptive material cost, can select the washing scheme of pertinence according to actual conditions.
According to the cleaning device, except for the transformation of the photovoltaic panel bracket assembly, an independent on-board cleaning machine does not have the capability of cross-board cleaning, even if the photovoltaic panel bracket is transformed, the cross-board operation of the on-board cleaning machine of the photovoltaic panel on the same row can only be realized, and the transfer of the on-board cleaning machine between adjacent photovoltaic panel rows cannot be realized; the embodiment introduces two auxiliary devices, namely a carrier and a mover, and realizes the plate spanning function of the on-board cleaning machine; meanwhile, the carrier is used for grabbing and adjusting the on-board cleaning machine, and the shifter is used for driving the carrier and the on-board cleaning machine to be transferred to the position near the target photovoltaic panel.
This photovoltaic module belt cleaning device is through increasing carrier and shifter to utilize the carrier to hoist the cleaning machine on the board, can remove to next photovoltaic board under the drive of shifter on, simultaneously, through setting up spacing part on the cleaning machine on the board, can place the cleaning machine on the board at the carrier when, the quick joint of realization spacing part and photovoltaic board, and then realize the quick board of trading of cleaning machine on the board. In addition, the cleaning device component can enable the on-board cleaning machine to achieve the effect that one machine covers multiple rows of photovoltaic panels, the cost of cleaning equipment is reduced, and the device is further connected with the on-board cleaning machine through the flexible connector, so that the collision degree between the on-board cleaning machine and the photovoltaic panels is effectively reduced, and further damage to the photovoltaic panels is reduced.
The photovoltaic module cleaning device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to aid in understanding the apparatus and its core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A photovoltaic module cleaning device comprises an on-board cleaning machine and is characterized by further comprising a carrier and a mover, wherein the carrier can be used for lifting the on-board cleaning machine, the mover is used for driving the carrier to move, the carrier and the on-board cleaning machine are in flexible connection through a connecting component, and a limiting component which can be clamped with a photovoltaic panel is mounted on the on-board cleaning machine; the limiting parts are specifically two in-place stop blocks (7) arranged on one side, close to the upper end of the photovoltaic panel, of the on-board cleaning machine, and the in-place stop blocks (7) can be clamped with the side face of the upper end of the photovoltaic panel; a stop block arm capable of retracting the in-position stop block (7) is further arranged on the on-board cleaning machine; still install on the dog arm from universal wheelset (8) of landing, universal wheelset (8) can with the cleaning machine props up from the surface of photovoltaic board on the board, and universal wheelset (8) can with the cleaning machine supports to follow after targetting in place on the board dog (7) of taking one's place are packed up together.
2. The photovoltaic module cleaning device according to claim 1, wherein the on-board cleaning machine comprises a vehicle body frame (1) and a roller brush (2) arranged on the vehicle body frame (1), one end of the vehicle body frame (1) is provided with a guide wheel (6) capable of rolling along the upper end side surface of the photovoltaic panel, the other end of the vehicle body frame (1) is provided with a support wheel capable of rolling along the surface of the photovoltaic panel, and the guide wheel (6) and the support wheel are both provided with a driving part.
3. The photovoltaic module cleaning device according to claim 1, wherein the connecting member is a flexible rope, and an electric reel for winding and unwinding the flexible rope is mounted on the carrier.
4. The photovoltaic module washing apparatus of claim 1, wherein the mover has mounted thereon a controller and a battery operable to power the on-board washing machine;
the controller is also used for judging whether the electric quantity of the battery is lower than the warning electric quantity, if so, the mover is controlled to move to a target supply position, and the charging pile is controlled to be started to charge the battery;
the controller is also used for judging whether the battery is fully charged, and if so, controlling the mover to return to the initial position.
5. The photovoltaic module washing apparatus as defined in claim 4, wherein the mover is further provided with a water tank for supplying water to the on-board washing machine;
the controller is also used for judging whether the water level of the water tank is lower than a warning water level or not, if so, the mover is controlled to move to a target replenishment position, and a water outlet is controlled to be opened to replenish water for the water tank;
the controller is also used for judging whether the water tank is full, and if so, controlling the mover to return to the initial position.
6. Photovoltaic module cleaning device according to claim 1, characterized in that the in-place stopper (7) is mounted at one end of the stopper arm, between the other end of the stopper arm and the on-board cleaning machine a spring (11) is mounted which can press down the stopper arm.
7. The photovoltaic module cleaning device according to claim 6, wherein an electromagnet (9) and a slide block with an inclined surface are further installed on the on-board cleaning machine, a roller is installed at one end, close to the spring (11), of the stop arm, the spring (11) is connected with the roller, and the electromagnet (9) can control the slide block to move so as to drive the roller to move up and down.
8. The photovoltaic module cleaning device according to claim 1, wherein each in-position stop block (7) is provided with an in-position detection sensor (12) for detecting whether the in-position stop block (7) is clamped with the upper end side face of the photovoltaic panel, and the in-position detection sensor (12) can send a detection signal to an upper controller to control the stop block arm to retract and start the cleaning mode.
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| CN201611025354.7A CN106391538B (en) | 2016-11-17 | 2016-11-17 | Photovoltaic module belt cleaning device |
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| CN201611025354.7A CN106391538B (en) | 2016-11-17 | 2016-11-17 | Photovoltaic module belt cleaning device |
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| CN107626632A (en) * | 2017-10-31 | 2018-01-26 | 深圳利尔阳光科技有限公司 | Intelligent PV glass panel cleaning equipment |
| CN111633572B (en) * | 2020-05-08 | 2021-07-09 | 浙江正清和日用制品有限公司 | Dust removing device of roller sand blasting machine |
| CN113921192B (en) * | 2021-09-22 | 2024-05-03 | 香港城市大学成都研究院 | Preparation method of high-precision patternable micro-nano silver nanowire transparent electrode |
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