CN112968668A

CN112968668A - Photovoltaic module's cleaning system

Info

Publication number: CN112968668A
Application number: CN202110108975.6A
Authority: CN
Inventors: 朱世珂; 李腾; 许盛; 杨光平; 廖海燕; 陈刚
Original assignee: Sungrow Shanghai Co Ltd
Current assignee: Sungrow Shanghai Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-06-15

Abstract

The invention provides a cleaning system of a photovoltaic module, which comprises: the cleaning assembly is arranged on the photovoltaic assembly to clean the photovoltaic assembly; the liquid spraying assembly is arranged on the photovoltaic assembly and used for spraying liquid to the photovoltaic assembly when the cleaning assembly cleans the photovoltaic assembly; the filtering component is lower than the photovoltaic component and is used for receiving and filtering liquid and impurities swept down by the sweeping component; the recycling assembly is lower than the filtering assembly so as to recycle liquid filtered by the filtering assembly and impurities not filtered by the filtering assembly respectively, and the recycled liquid such as snow water and ice water can be recycled and is pumped into the liquid spraying assembly again to clean the photovoltaic assembly.

Description

Photovoltaic module's cleaning system

Technical Field

The invention relates to the technical field of water surface photovoltaics, in particular to a photovoltaic module cleaning system.

Background

The solar photovoltaic module is formed by connecting a plurality of single solar cells in series and tightly packaging. The photovoltaic module has impurities, accumulated snow, accumulated ice and the like which can affect the transmittance of light, and can reduce the radiation amount received by the photovoltaic module, so that the light receiving surface of the photovoltaic module needs to be cleaned.

Disclosure of Invention

The invention mainly aims to provide a cleaning system of a photovoltaic module, and aims to solve the problem that harmful substances in impurities on the photovoltaic module pollute the environment in the prior art.

In order to achieve the above object, the present invention provides a cleaning system for a photovoltaic module, the cleaning system comprising: the cleaning assembly is arranged on the photovoltaic assembly to clean the photovoltaic assembly; the liquid spraying assembly is arranged on the photovoltaic assembly and used for spraying liquid to the photovoltaic assembly when the cleaning assembly cleans the photovoltaic assembly; the filtering component is lower than the photovoltaic component and is used for receiving and filtering liquid and impurities swept down by the sweeping component; a recovery assembly lower than the filtering assembly to recover liquid filtered by the filtering assembly and impurities not filtered by the filtering assembly, respectively.

Further, the recovery assembly comprises: the liquid recovery tank is arranged below the filtering component so as to recover the liquid filtered by the filtering component; the impurity collecting box is arranged outside the liquid recovery box and is arranged adjacent to the liquid recovery box or at intervals so as to recover impurities which are not filtered by the filtering component.

Further, the recovery assembly further comprises: the vibration driving piece is arranged on the filtering component to drive the filtering component to vibrate, so that impurities on the filtering component vibrate and fall into the impurity collecting box.

Further, the filter assembly includes: the number of the multilayer filters corresponds to the number of the side edges of the liquid flowing out of the photovoltaic module, the multilayer filters are obliquely arranged in the liquid recovery box, the higher ends of the multilayer filters are positioned in a projection area of the photovoltaic module in the gravity direction, the lower ends of the multilayer filters are positioned outside the projection area, and the impurity collecting box is positioned below the lower ends.

Furthermore, impurity transfer mouth has been seted up on the tank wall of liquid recovery case, the recovery module still includes: and one end of the impurity conveying pipe is communicated with the impurity collecting box, the other end of the impurity conveying pipe is communicated with the impurity conveying port, and the lower end of the multilayer filter extends to the impurity conveying port.

Furthermore, the multilayer filter comprises a filter screen, a filter cotton layer and an activated carbon layer which are sequentially arranged from top to bottom.

Further, the cleaning system further comprises a controller, and the liquid spray assembly comprises: the water storage part is provided with a liquid spraying nozzle; the booster pump, the booster pump with water storage spare all communicates, the booster pump still with the controller electricity is connected, in order to with the liquid in the water storage spare is followed the hydrojet mouth is pumped out.

Further, the liquid spray assembly further comprises: the liquid level sensor is arranged on the inner side wall of the water storage part and is electrically connected with the controller; the suction pump, the suction pump with liquid recycling bin, water storage spare all communicate, just the suction pump still with the controller electricity is connected, in order to with the liquid suction of liquid recycling bin in the water storage spare.

Further, the liquid spray assembly includes: the temperature sensor is arranged in the water storage part and is electrically connected with the controller; and the heater is arranged in the water storage part, is electrically connected with the controller and is used for heating the liquid in the water storage part.

Further, the sweeping assembly comprises: the pressure sensor is arranged on the photovoltaic module, electrically connected with the controller and used for detecting the pressure applied to the photovoltaic module.

Further, the sweeping assembly comprises: the cleaning brush is abutted with the photovoltaic module; one end of the telescopic rod is connected with the cleaning brush; the telescopic driving piece is connected with the other end of the telescopic rod to drive the cleaning brush to clean the photovoltaic module in a reciprocating mode.

Further, the sweeping assembly further comprises: the guide piece is internally provided with a guide groove;

the sliding piece is slidably arranged in the guide groove; the connecting rod, connecting rod one end with the brush cleaner is connected, the connecting rod other end stretch into in the guide way with the slider is connected, the telescopic link with the connecting rod is perpendicular to be connected, the flexible direction of telescopic link with the hydrojet direction of hydrojet is perpendicular.

Further, the sweeping system further comprises: the water storage tank is communicated with the liquid recovery tank, a water storage port is formed in the liquid recovery tank, and the water storage port is formed in the upper half part of the tank wall of the liquid recovery tank; and one end of the water storage pipe is communicated with the water storage tank, and the other end of the water storage pipe is communicated with the water storage port.

Further, the photovoltaic module includes: the base comprises a first mounting area and a second mounting area which are positioned on the same surface, and the cleaning assembly and the liquid spraying assembly are mounted on the first mounting area; a photovoltaic panel mounted on the second mounting region.

In the technical scheme of the invention, the cleaning component is arranged on the photovoltaic component and is used for cleaning impurities such as dust, accumulated snow and ice on the light receiving surface of the photovoltaic component, meanwhile, the liquid spraying component is arranged on the photovoltaic component, when the cleaning component is used for cleaning, liquid is sprayed to the photovoltaic component through the liquid spraying component, and the impurities and the liquid are swept down to the filtering component through the cleaning component, the filtering component is lower than the photovoltaic component and is used for receiving and filtering the liquid and the impurities swept down by the cleaning component, the filtering component can be used for filtering the impurities in the liquid so as to separate the liquid and the impurities and recycle the liquid and the impurities to the recycling component, the recycling component is lower than the filtering component so as to recycle the liquid filtered by the filtering component and the impurities which cannot be filtered by the filtering component respectively, the recovered liquid such as clean water can be recycled and is pumped into the liquid spraying assembly again to clean the photovoltaic assembly.

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 structures shown in the drawings without creative efforts.

FIG. 1 is a schematic side view of a photovoltaic module cleaning system according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a photovoltaic module cleaning system according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a photovoltaic module sweeping system according to another embodiment of the present invention;

FIG. 4 is a schematic view of the structure of a multi-layer filter according to the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-3, a cleaning system 100 for a photovoltaic module according to the present invention includes: the cleaning assembly 10 is arranged on the photovoltaic assembly 200, so that the photovoltaic assembly 200 can be cleaned by the cleaning assembly 10; a liquid spray assembly 20, wherein the liquid spray assembly 20 is disposed on the photovoltaic assembly 200 to spray liquid to the photovoltaic assembly 200 when the cleaning assembly 10 cleans the photovoltaic assembly 200; the filtering component 30 is lower than the photovoltaic component 200, so that liquid and impurities swept down by the sweeping component 10 are received and filtered; a recycling assembly 40, wherein the recycling assembly 40 is lower than the filtering assembly 30, so as to recycle the liquid filtered by the filtering assembly 30 and the impurities not filtered by the filtering assembly 30 respectively.

In this embodiment, the cleaning assembly 10 is disposed on the photovoltaic assembly 200 for cleaning impurities such as dust and snow, ice, etc. on the light receiving surface of the photovoltaic assembly 200, and the liquid spraying assembly 20 is disposed on the photovoltaic assembly 200, when the cleaning assembly 10 is cleaning, liquid is sprayed to the photovoltaic assembly 200 through the liquid spraying assembly 20, the sprayed liquid may be a snow melting agent, or other liquid such as clear water, when there is snow and ice on the photovoltaic assembly 200, hot water may be sprayed to the photovoltaic assembly 200 to rapidly melt the snow and ice, and impurities and liquid (including snow water ice water obtained by melting the snow and ice) are swept onto the filtering assembly 30 through the cleaning assembly 10, and the filtering assembly 30 is lower than the photovoltaic assembly 200 to receive and filter the liquid and impurities swept down by the cleaning assembly 10, the impurity of filter assembly 30 in can being to liquid filters to separate liquid and impurity and supply recovery assembly 40 retrieves, recovery assembly 40 is lower than filter assembly 30, with will the filterable liquid of filter assembly 30 and the impurity that filter assembly 30 can not be filterable retrieves respectively, and the liquid of retrieving can recycle like the clear water, is taken in again in the hydrojet subassembly 20 right photovoltaic module 200 washs, and this embodiment is owing to right impurity and liquid are retrieved respectively, and consequently, can avoid the harmful substance in the impurity to carry out the pollution to the surrounding environment.

Referring to fig. 1-2, in one embodiment, the photovoltaic device 200 includes: a base 201, wherein the base 201 includes a first mounting area 2011 and a second mounting area 2012 which are located on the same surface, and the cleaning assembly 10 and the liquid spray assembly 20 are mounted on the first mounting area 2011; a photovoltaic panel 202, said photovoltaic panel 202 mounted on said second mounting region 2012.

In this embodiment, the surface of the base 201 for mounting the photovoltaic panel 202 may be divided into the first mounting area 2011 and the second mounting area 2012, the cleaning assembly 10 and the liquid spray assembly 20 are mounted on the first mounting area 2011, and the photovoltaic panel 202 is mounted on the second mounting area 2012, so that the space on the base 201 can be fully utilized, and the cleaning assembly 10 and the liquid spray assembly 20 are disposed next to the photovoltaic panel 202 to clean and clean the light receiving surface of the photovoltaic panel 202. It is understood that the photovoltaic panel 202 can also be spread over the base 201, and the cleaning assembly 10 and the liquid spraying assembly 20 are installed by additionally providing a support frame or the like to increase the area of the photovoltaic panel 202 on the base 201. It can be understood that cleaning assembly 10 and liquid spray assembly 20 are used for cleaning and cleaning the light receiving surface of photovoltaic panel 202 of photovoltaic module 200.

Referring to fig. 3, further, the recycling assembly 40 includes: a liquid recovery tank 41, wherein the liquid recovery tank 41 is disposed below the filter assembly 30 to recover the liquid filtered by the filter assembly 30; at least one foreign material collection tank 42, the foreign material collection tank 42 being disposed outside the liquid recovery tank 41 and adjacent to or spaced apart from the liquid recovery tank 41 to recover foreign materials not filtered by the filter assembly 30.

In this embodiment, by disposing the liquid recovery tank 41 below the filtering assembly 30, the liquid filtered by the filtering assembly 30 can fall into the liquid recovery tank 41 by gravity, so as to recover the filtered liquid; meanwhile, by disposing the impurity collecting box 42 outside the liquid recovery box 41, the impurity collecting box 42 may be fixed to a wall of the liquid recovery box 41, or may be disposed at a distance from the liquid recovery box 41, and the impurity collecting box 42 is also disposed below the filter module 30 to collect impurities that cannot be filtered by the filter module 30.

Referring to fig. 3, further, the recycling assembly 40 further includes: and the vibration driving piece 43 is arranged on the filtering component 30, so as to drive the filtering component 30 to vibrate, and impurities on the filtering component 30 are made to fall into the impurity collecting box 42 in a vibration mode.

In this embodiment, the vibration driving member 43 may be a vibration motor, the vibration driving member 43 is disposed on the filtering assembly 30, the filtering assembly 30 is preferably disposed in an inclined manner, and the vibration driving member 43 is preferably disposed at a higher end of the filtering assembly 30 and drives the filtering assembly 30 to vibrate, so as to vibrate impurities on the filtering assembly 30 that are not filtered to fall into the impurity collecting box 42. It can be understood that, when the filtering assembly 30 is preferably disposed obliquely, the impurities on the filtering assembly 30 can fall into the impurity collecting box 42 by its own weight, in this embodiment, the vibration driving member 43 is further added on the filtering assembly 30 to vibrate the impurities to fall into the impurity collecting box 42 more quickly, and at the same time, the stubborn impurities on the filtering assembly 30 can be loosened to make the stubborn impurities fall into the impurity collecting box 42, because the impurities on the filtering assembly 30 are collected as much as possible, the impurities on the filtering assembly 30 are less, and the filtering efficiency of the filtering assembly 30 on the liquid can be improved.

Referring to fig. 1-3, further, the filter assembly 30 includes: at least one multi-layer filter 31, the number of the multi-layer filter 31 corresponds to the number of the side edges of the liquid flowing out of the photovoltaic module 200, the multi-layer filter 31 is obliquely arranged in the liquid recovery tank 41, the higher end of the multi-layer filter 31 is positioned in the projection area of the photovoltaic module 200 in the gravity direction, the lower end of the multi-layer filter 31 is positioned outside the projection area, and the impurity collecting tank 42 is positioned below the lower end.

In the present embodiment, the filtering assembly 30 includes one or more multi-layer filters 31, the number of the multi-layer filters 31 corresponds to the number of the sides of the photovoltaic module 200, the photovoltaic module 200 is generally rectangular or directional and has four sides, for example, when the photovoltaic module 200 is horizontally placed, the cleaning assembly 10 may sweep the liquid and impurities from four sides, therefore, the number of the multi-layer filters 31 is four and is arranged corresponding to the four sides of the photovoltaic module 200 to receive and filter the liquid flowing out from four sides, as shown in fig. 2, when the photovoltaic module 200 is obliquely placed, two parallel sides are higher and lower, and the other two parallel sides are obliquely placed, at this time, the cleaning assembly 10 may sweep the liquid and impurities from two obliquely placed sides and lower sides, therefore, the number of the multi-layer filters 31 is three, and the multi-layer filters are arranged corresponding to the two inclined sides and the lower side of the liquid flowing out from the photovoltaic module 200 one by one to receive and filter the flowing-out liquid.

In this embodiment, the multi-layer filter 31 is directly obliquely disposed in the liquid recycling tank 41, so that the liquid filtered by the multi-layer filter 31 directly falls into the liquid recycling tank 41, the higher end of the multi-layer filter 31 is located in the projection region of the photovoltaic module 200 in the gravity direction, the lower end of the multi-layer filter 31 is located outside the projection region, the projection of the photovoltaic module 200 in the gravity direction partially overlaps with the multi-layer filter 31, so that the liquid and impurities swept down by the side edge of the photovoltaic module 200 are completely caught by the multi-layer filter 31, and the liquid and impurities are prevented from falling out of the multi-layer filter 31. The vibration driving member 43 is preferably disposed at the upper end of the multi-layer filter 31 to drive the multi-layer filter 31 to vibrate and drop the impurities into the impurity collecting box 42, and the impurity collecting box 42 is disposed below the lower end to receive the impurities dropped from the multi-layer filter 31.

Further, a wall of the liquid recycling tank 41 is provided with an impurity transfer port (not shown), and the recycling module 40 further includes: an impurity transfer pipe 44, one end of the impurity transfer pipe 44 is communicated with the impurity collecting tank 42, the other end is communicated with the impurity transfer port, and the lower end of the multi-layer filter 31 extends to the impurity transfer port.

In the present embodiment, since the multi-layer filter 31 is located in the liquid recovery tank 41, by opening a foreign matter transfer port in a wall of the liquid recovery tank 41, the foreign matter transfer port communicates with the foreign matter collection tank 42 through the foreign matter transfer pipe 44, so that the foreign matter on the multi-layer filter 31 is transferred out of the liquid recovery tank 41 through the foreign matter transfer port and is transferred into the foreign matter collection tank 42 through the foreign matter transfer pipe 44, thereby collecting the foreign matter on the multi-layer filter 31 in the liquid recovery tank 41. It is understood that the impurity collecting boxes 42 may correspond to the multi-layered filters 31 one by one, and the same impurity collecting box 42 may receive impurities on a plurality of the multi-layered filters 31 through a plurality of impurity transfer pipes 44.

Referring to fig. 4, the multi-layer filter 31 further includes a filter screen 311, a filter cotton layer 312, and an activated carbon layer 313, which are sequentially disposed from top to bottom.

In this embodiment, filter screen 311, filter cotton layer 312 and activated carbon layer 313 set gradually from the top down, also, follow the liquid that sweeps down on photovoltaic module 200 passes through in proper order filter screen 311, filter cotton layer 312 and activated carbon layer 313 are filtered, wherein, filter screen 311 is used for filtering large granule impurity, filter cotton layer 312 is used for filtering small granule impurity, activated carbon layer 313 is used for filtering impurity such as organic matter, heavy metal, pollutes photovoltaic module 200 when avoiding the snow water ice water cyclic utilization who contains impurity, influences photovoltaic module 200's life.

Referring to fig. 1-3, further, the cleaning system 100 further includes a controller 50, and the liquid spray assembly 20 includes: the water storage part 21 is provided with a liquid spraying nozzle 211; and the booster pump 22 is communicated with the water storage part 21, and the booster pump 22 is also electrically connected with the controller 50 to pump out the liquid in the water storage part 21 from the liquid spraying nozzle 211.

In this embodiment, the shape of the water storage member 21 may be set according to actual needs, for example, in order to increase the liquid spraying area of the water storage member 21, the water storage member 21 is set to be in a long tube shape, and a plurality of liquid spraying nozzles 211 are opened along the length direction of the water storage member 21, so as to increase the liquid spraying area of the water storage member 21, and the plurality of liquid spraying nozzles 211 are uniformly opened at equal intervals on the long tube-shaped water storage member 21, so that the water storage member 21 uniformly sprays liquid to different positions of the photovoltaic module 200; through setting up the booster pump 22 to with the booster pump 22 with controller 50 electricity is connected under controller 50's control, the booster pump 22 is right the liquid in the water storage 21 carries out the pressure boost, thereby increases hydrojet 211 sprays dynamics and the distance of spraying, can be right photovoltaic module 200 washs more extensively, more thoroughly. It will be appreciated that the vibrating drive member 43 is also connected to the controller 50 to control the operation of the vibrating drive member 43 via the controller 50.

Further, the liquid spray assembly 20 further includes: the liquid level sensor 23 is arranged on the inner side wall of the water storage part 21 and is electrically connected with the controller 50; the water pump 24 is communicated with the liquid recovery tank 41 and the water storage part 21, and the water pump 24 is electrically connected with the controller 50 to pump the liquid in the liquid recovery tank 41 into the water storage part 21.

In this embodiment, the liquid level sensor 23 is disposed on the inner side wall of the water storage member 21 to sense the water level of the water storage member 21, and meanwhile, the liquid level sensor 23 and the water pump 24 are electrically connected to the controller 50, when the liquid level sensor 23 detects that the water level in the water storage member 21 is lower than a preset water level, the liquid level sensor 23 sends a corresponding water level detection signal to the controller 50, the controller 50 controls the water pump 24 to operate according to the water level detection signal, since the water pump 24 communicates the liquid recovery tank 41 and the water storage member 21, the liquid recovered in the liquid recovery tank 41 can be pumped into the water storage member 21 again until the liquid level sensor 23 detects that the liquid level in the water storage member 21 is higher than the maximum water level, and the controller 50 controls the water pump 24 to stop operating, thereby realizing the cyclic utilization of the cleaning liquid

Referring to fig. 1-3, further, the spray assembly 20 includes: the temperature sensor 25 is arranged in the water storage part 21, is electrically connected with the controller 50 and is used for heating the liquid in the water storage part 21; and a heater 26, wherein the heater 26 is arranged in the water storage part 21 and is electrically connected with the controller 50.

In this embodiment, the temperature sensor 25 is disposed in the water storage member 21, and preferably disposed at the bottom of the water storage member 21, so as to accurately detect the temperature of the liquid in the water storage member 21, and since the temperature sensor 25 is electrically connected to the controller 50, the detected temperature information can be sent to the controller 50; heater 26 sets up in water storage 21, and preferably set up in water storage 21 bottom, because heater 26 with controller 50 electricity is connected controller 50 receives when the temperature is less than preset temperature, controller 50 control heater 26 work, it is right to heat liquid in the water storage 21, and the hot water that sprays after the heating can make snow icing on the photovoltaic module 200 melts fast, improves clean subassembly 10 cleans the efficiency of snow icing, can retrieve the liquid after the snow icing melts simultaneously, avoids extravagant. After the temperature of the heated liquid is higher than the preset temperature, the controller 50 controls the heater 26 to stop working to save electric energy, and it can be understood that the heater 26 may be a heating rod, and when the water storage member 21 is in a long tube shape, the heating rod may be a heating rod extending along the length direction of the water storage member 21 to increase the contact area with the liquid, and improve the heating efficiency and the heating uniformity.

Further, the sweeping assembly 10 includes: the pressure sensor 101 is disposed on the photovoltaic module 200, electrically connected to the controller 50, and configured to detect a pressure applied to the photovoltaic module 200.

In this embodiment, by setting up pressure sensor 101 on photovoltaic module 200, and with pressure sensor 101 with controller 50 electricity is connected, pressure sensor 101 is used for detecting the accumulated ice of snow or the accumulated dust is right photovoltaic module 200's pressure, and sends pressure signal to controller 50, when pressure signal is greater than preset pressure information, controller 50 control it is right to clear subassembly 10 that cleans photovoltaic module 200, and control hydrojet subassembly 20 hydrojet is right photovoltaic module 200 washs simultaneously.

Preferably, in order to improve the detection accuracy, a plurality of pressure sensors 101 may be provided, a plurality of pressure sensors 101 are uniformly disposed on the light receiving surface of the photovoltaic module 200, for example, the plurality of pressure sensors 101 are arranged in an array, the plurality of pressure sensors 101 are all connected to the controller 50 and all send detected pressure signals to the controller 50, the controller 50 controls the cleaning assembly 10 and the liquid spraying assembly 20 to operate according to the plurality of pressure signals, for example, if a pressure signal detected by the pressure sensor 101 of a certain area is greater than preset pressure information, the area is cleaned and cleaned, and if a pressure signal detected by the pressure sensor 101 of other areas is less than or equal to the preset pressure information, the area is not cleaned or cleaned, therefore, the cleaning and washing are performed in a targeted manner, the cleaning and washing efficiency is improved, and the electric energy is saved.

Referring to fig. 1-2, in one embodiment, the sweeping assembly 10 includes: the cleaning brush 11 is abutted against the photovoltaic module 200; one end of the telescopic rod 13 is connected with the cleaning brush 11; and the telescopic driving piece 14 is connected with the other end of the telescopic rod 13, so as to drive the cleaning brush 11 to clean the photovoltaic module 200 on the photovoltaic module 200 in a reciprocating manner.

In this embodiment, the cleaning brush 11 abuts against the photovoltaic module 200 to clean the light receiving surface of the photovoltaic module 200, and the length of the cleaning brush 11 is preferably equal to the width of the photovoltaic module 200, is parallel to the wide side of the photovoltaic module 200, and reciprocates in the long side direction of the photovoltaic module 200 to clean the light receiving surface of the photovoltaic module 200 in a full-face manner without dead corners, and it is understood that the length of the cleaning brush 11 may be also preferably equal to the length of the photovoltaic module 200, is parallel to the long side of the photovoltaic module 200, and reciprocates in the wide side direction of the photovoltaic module 200 to clean the light receiving surface of the photovoltaic module 200 in a full-face manner without dead corners; the flexible driving piece 14 pass through the telescopic link 13 with the brush cleaner 11 is connected, just flexible driving piece 14 with controller 50 is connected under the control of controller 50, flexible driving piece 14 passes through telescopic link 13 drives brush cleaner 11 is along the long limit or the broadside direction reciprocating motion of photovoltaic module 200, with right photovoltaic module 200 cleans comprehensively.

Referring to fig. 1-2, further, the sweeping assembly 10 further includes: a guide 15, a guide groove 151 being formed in the guide 15; a sliding member 16, wherein the sliding member 16 is slidably arranged in the guide groove 151; one end of the connecting rod 12 is connected with the cleaning brush 11, the other end of the connecting rod 12 extends into the guide groove 151 to be connected with the sliding part 16, the telescopic rod 13 is vertically connected with the connecting rod 12, and the telescopic direction of the telescopic rod 13 is vertical to the liquid spraying direction of the liquid spraying nozzle 211.

In the present embodiment, specifically, the guide 15 is provided in the first installation area 2011 where the cleaning assembly 10 is installed, in an embodiment where the cleaning brush 11 performs cleaning back and forth along the width direction of the photovoltaic assembly 200, the guide 15 extends along the width direction of the photovoltaic assembly 200, the guide groove 151 in the guide 15 also extends along the width direction of the photovoltaic assembly 200, and the sliding member 16 can slide along the guide groove 151 in the guide groove 151; the two ends of the connecting rod 12 are respectively connected with the sliding part 16 and the cleaning brush 11, the telescopic driving part 14 is connected with the middle position of the connecting rod 12 through the telescopic rod 13, and the telescopic rod 13 is vertically connected with the connecting rod 12, thus, when the telescopic driving member 14 is operated, the telescopic driving member 14 drives the sliding member 16 to reciprocate in the chute via the telescopic rod 13 and the connecting rod 12, and simultaneously drives the cleaning brush 11 to reciprocally clean the light receiving surface of the photovoltaic panel 202 along the width direction of the photovoltaic module 200, by disposing the slider 16 and the sweeper brush 11 at both ends of the link 12, the telescopic rod 13 is connected with the middle position of the connecting rod 12, so that the cleaning brush 11 can move stably in a reciprocating manner, and the condition that the cleaning brush 11 swings eccentrically is avoided.

Specifically, water storage 21 also set up in first installing zone 2011, hydrojet mouth 211 to in the second installing zone 2012 the hydrojet of photovoltaic board 202, at this moment, the flexible direction of telescopic link 13 with hydrojet direction of hydrojet mouth 211 is perpendicular, that is, the reciprocal direction of cleaning of brush 11 with hydrojet direction of hydrojet mouth 211 is perpendicular, so, after hydrojet mouth 211 hydrojet, brush 11 evenly sweeps the liquid on photovoltaic board 202 to each position of photovoltaic board 202 is right photovoltaic board 202 washs, cleans comprehensively, especially when spun liquid is hot water, can melt the accumulated ice of snow of each position on photovoltaic board 202 fast.

Referring to fig. 3, further, the cleaning system 100 further includes: the water storage tank 45 is communicated with the liquid recovery tank 41, a water storage opening 411 is formed in the liquid recovery tank 41, and the water storage opening 411 is formed in the upper half part of the tank wall of the liquid recovery tank 41; and a water storage pipe 46, wherein one end of the water storage pipe 46 is communicated with the water storage tank 45, and the other end of the water storage pipe 46 is communicated with the water storage opening 411.

In this embodiment, the water storage tank 45 is communicated with the water storage port 411 provided on the liquid recovery tank 41 through the water storage pipe 46, the water storage port 411 is provided at the upper half portion of the tank wall of the liquid recovery tank 41, and when the water level of the liquid recovery tank 41 reaches the water storage port 411, the liquid recovered by the liquid recovery tank 41 flows into the water storage tank 45 through the water storage port 411 and the water storage pipe 46, so as to recover the liquid (such as snow ice water formed by melting snow ice) recovered by the liquid recovery tank 41, and is used for other purposes such as irrigation.

Referring to fig. 1 to 4, based on the photovoltaic module cleaning system 100, an overall work flow of the photovoltaic module cleaning system 100 is described as follows:

when the weather is heavy snow, heavy snow and the like, the pressure sensor 101 transmits the acquired pressure information of the surface of the photovoltaic panel 202 to the controller 50, when the pressure information is greater than preset pressure information set in the controller 50, the controller 50 controls the telescopic driving piece 14 to be started, the telescopic driving piece 14 drives the sweeping brush 11 to reciprocate along the width direction of the photovoltaic module 200 through the telescopic rod 13 and the connecting rod 12 to sweep, and meanwhile, the sliding piece 16 also reciprocates in the sliding groove 151; meanwhile, the controller 50 starts the booster pump 22, the booster pump 22 boosts the liquid in the water storage part 21, so that the liquid is sprayed out from the liquid spraying nozzle 211, the temperature sensor 25 transmits the temperature information of the liquid in the water storage part 21 to the controller 50, when the temperature is lower than the preset temperature information, the controller 50 controls the heater 26 to start, the liquid in the water storage part 21 is heated, the heated liquid can accelerate the melting of the accumulated snow ice, so that the cleaning brush 11 can rapidly clean the accumulated snow ice on the photovoltaic panel 202, and the like, the liquid sprayed out from the liquid spraying nozzle 211 and the cleaned accumulated snow ice are swept down to the filtering component 30 together, the melted accumulated snow ice and the cleaning liquid pass through the filtering component for filtering, wherein the filtering net 311 filters large-particle impurities, the filtering cotton layer 312 is used for further filtering small-particle impurities, and the activated carbon layer 313 is used for filtering impurities such as organic matters and heavy metals, so that the situation that snow water ice water containing the impurities pollutes the photovoltaic panel 202 when being recycled and the service life of the photovoltaic panel 202 is influenced is avoided; the filtered snow water ice water flows into the liquid recovery tank 41; when the liquid level sensor 23 detects that the liquid level in the water storage member 21 is lower than the preset water level, the controller 50 controls the water suction pump 24 to start, and the filtered snow water ice water and the cleaning liquid in the liquid recovery tank 41 are pumped into the water storage member 21 until the water level in the water storage member 21 reaches the maximum water level, so that the filtered snow water ice water is recycled, and water resources are saved; if too much snow water and ice water are collected in the liquid recovery tank 41, the snow water and ice water flow into the water storage tank 45 through the water storage pipe 46 to be collected, and the snow water and ice water can be used for irrigating crops and the like, so that the situation that the liquid recovery tank 41 cannot collect too much filtered snow water and ice water is avoided.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A cleaning system for a photovoltaic module, the cleaning system comprising:

the cleaning assembly is arranged on the photovoltaic assembly to clean the photovoltaic assembly;

the liquid spraying assembly is arranged on the photovoltaic assembly and used for spraying liquid to the photovoltaic assembly when the cleaning assembly cleans the photovoltaic assembly;

the filtering component is lower than the photovoltaic component and is used for receiving and filtering liquid and impurities swept down by the sweeping component;

a recovery assembly lower than the filtering assembly to recover liquid filtered by the filtering assembly and impurities not filtered by the filtering assembly, respectively.

2. The photovoltaic module scavenging system of claim 1, wherein the recovery assembly includes:

the liquid recovery tank is arranged below the filtering component so as to recover the liquid filtered by the filtering component;

the impurity collecting box is arranged outside the liquid recovery box and is arranged adjacent to or at intervals with the liquid recovery box so as to recover impurities which are not filtered by the filtering component.

3. The photovoltaic module scavenging system of claim 2, wherein the recovery assembly further comprises:

the vibration driving piece is arranged on the filtering component to drive the filtering component to vibrate, so that the impurities on the filtering component vibrate and fall into the impurity collecting box.

4. The photovoltaic module scavenging system of claim 2, wherein the filter assembly comprises:

the number of the multilayer filters corresponds to the number of the side edges of the liquid flowing out of the photovoltaic module, the multilayer filters are obliquely arranged in the liquid recovery box, the higher end of each multilayer filter is positioned in the projection area of the photovoltaic module in the gravity direction, the lower end of each multilayer filter is positioned outside the projection area, and the impurity collecting box is positioned below the lower end.

5. The photovoltaic module sweeping system according to claim 4, wherein the liquid recovery tank has a wall provided with an impurity transfer port, and the recovery module further comprises:

and one end of the impurity conveying pipe is communicated with the impurity collecting box, the other end of the impurity conveying pipe is communicated with the impurity conveying port, and the lower end of the multilayer filter extends to the impurity conveying port.

6. The cleaning system for the photovoltaic module according to claim 4, wherein the multi-layer filter comprises a filter net, a filter cotton layer and an activated carbon layer which are arranged in sequence from top to bottom.

7. The photovoltaic module cleaning system of claim 2, wherein the cleaning system further comprises a controller, and the liquid spray assembly comprises:

the water storage part is provided with a liquid spraying nozzle;

the booster pump, the booster pump with water storage spare all communicates, the booster pump still with the controller electricity is connected, in order to incite somebody to action liquid in the water storage spare is followed the hydrojet mouth is pumped out.

8. The photovoltaic module scavenging system of claim 7, wherein the liquid spray assembly further comprises:

the liquid level sensor is arranged on the inner side wall of the water storage part and is electrically connected with the controller;

the suction pump, the suction pump with liquid recovery case, water storage spare all communicate, just the suction pump still with the controller electricity is connected, in order with the liquid suction of liquid recovery case is in the water storage spare.

9. The photovoltaic module sweeping system of claim 7, wherein the liquid spray assembly comprises:

the temperature sensor is arranged in the water storage part and is electrically connected with the controller;

and the heater is arranged in the water storage part, is electrically connected with the controller and is used for heating the liquid in the water storage part.

10. The photovoltaic module scavenging system of claim 7, wherein the scavenging assembly comprises:

and the pressure sensor is arranged on the photovoltaic module, electrically connected with the controller and used for detecting the pressure applied to the photovoltaic module.

11. The photovoltaic module sweeping system of claim 10, wherein the sweeping assembly includes:

the cleaning brush is abutted against the photovoltaic assembly;

one end of the telescopic rod is connected with the cleaning brush;

the telescopic driving piece is connected with the other end of the telescopic rod to drive the cleaning brush to clean the photovoltaic module in a reciprocating mode.

12. The photovoltaic module scavenging system of claim 11, wherein the scavenging assembly further comprises:

the guide piece is internally provided with a guide groove;

the sliding piece is slidably arranged in the guide groove;

one end of the connecting rod is connected with the cleaning brush, the other end of the connecting rod extends into the guide groove and is connected with the sliding piece, the telescopic rod is vertically connected with the connecting rod, and the telescopic direction of the telescopic rod is perpendicular to the liquid spraying direction of the liquid spraying nozzle.

13. The photovoltaic module scavenging system of any one of claims 2 to 12, further comprising:

the water storage tank is communicated with the liquid recovery tank, a water storage port is formed in the liquid recovery tank, and the water storage port is formed in the upper half part of the tank wall of the liquid recovery tank;

and one end of the water storage pipe is communicated with the water storage tank, and the other end of the water storage pipe is communicated with the water storage port.

14. A cleaning system for a photovoltaic module according to any one of claims 2 to 12, wherein the photovoltaic module comprises:

the base comprises a first mounting area and a second mounting area which are positioned on the same surface, and the cleaning assembly and the liquid spraying assembly are mounted on the first mounting area;

a photovoltaic panel mounted on the second mounting region.