CN112636685B - Photovoltaic module is from cleaning system - Google Patents
Photovoltaic module is from cleaning system Download PDFInfo
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- CN112636685B CN112636685B CN202011393680.XA CN202011393680A CN112636685B CN 112636685 B CN112636685 B CN 112636685B CN 202011393680 A CN202011393680 A CN 202011393680A CN 112636685 B CN112636685 B CN 112636685B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 146
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 185
- 239000010865 sewage Substances 0.000 claims abstract description 103
- 239000000428 dust Substances 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 28
- 230000003749 cleanliness Effects 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 13
- 239000012459 cleaning agent Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 9
- 239000007921 spray Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 239000002351 wastewater Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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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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Abstract
The invention discloses a photovoltaic module self-cleaning system, and belongs to the field of photovoltaic module cleaning. The photovoltaic module self-cleaning system comprises a cleaning module arranged at the upper end of the photovoltaic module, a sewage suction module arranged at the lower end of the photovoltaic module and a control module, wherein a sewage suction nozzle of the sewage suction module is connected with a water suction pump through a sewage suction pipe, and a rotary brush is arranged at the upper part of the sewage suction nozzle. The photovoltaic module surface of slope is washed from top to bottom through the cleaning module that has the spraying and washing function, the sewage module that inhales through having the initiative suction function will wash sewage suction and come out, the rotatory brush that the cooperation set up in dirt suction nozzle department simultaneously carries out the bottom and scrubs, make whole photovoltaic module can be from last down being washed clean, and effectively prevented photovoltaic module bottom dust deposit, the whole cleaning performance of photovoltaic module has been improved, whole cleaning system has simple structure, the cleaning cost is low, the cleaning efficiency is high, it is good to wash water conservation nature, advantages such as degree of automation height.
Description
Technical Field
The invention relates to the field of photovoltaic module cleaning, in particular to a photovoltaic module self-cleaning system.
Background
In recent years, the country advocates environmental protection and clean energy energetically, and solar energy is the most convenient clean energy, and photovoltaic power stations are increasingly constructed. The photovoltaic module is placed in the air for a long time, dust in the air can cover the surface of the photovoltaic module in a large amount, partial solar radiation amount is blocked, effective area irradiated to the surface of the photovoltaic module is reduced, meanwhile, the dust can affect transmissivity of silicon crystal on the surface of the photovoltaic module, so that the solar radiation amount received by the photovoltaic module is reduced, and photovoltaic power generation efficiency is reduced. In addition, when the partial area of the photovoltaic module is covered by dust, the covered part can not work normally, so that the temperature of the part is far higher than that of the part which is not covered by the dust, hot spots which are burnt out can appear on the surface of the photovoltaic module when the temperature is seriously too high, the large-area damage of the photovoltaic module can be seriously caused, and the safety of a photovoltaic module system is reduced.
At present, the cleaning mode of the photovoltaic module mainly comprises three modes of natural cleaning, manual cleaning and cleaning of a movable cleaning machine. In arid and rainless western regions, the natural rainfall probability is very low, and the natural cleaning purpose cannot be realized at all; the manual cleaning is to manually clean the photovoltaic module by adopting a mop and a rag, so that a large amount of manpower and water sources are consumed, the cost is high, and the cleaning period is long; the mobile cleaning machine has high equipment cost and strong equipment operation and maintenance speciality. Therefore, the cleaning of the photovoltaic module is in a state of long period, high cost and low efficiency, the safety of the photovoltaic power station is difficult to guarantee, and the photovoltaic power generation efficiency is greatly reduced due to the dust on the surface of the photovoltaic module.
Chinese patent No. 201520749197.9 discloses "a photovoltaic power plant belt cleaning device", it includes control box and hydrologic cycle part, control box control photovoltaic module, be equipped with the solenoid valve along separate routes between control box and the photovoltaic module, the hydrologic cycle part includes the storage water tank, the spray pipe, spray wastewater collection groove and circulating pump, storage water tank one end connection control box, the circulating pump is connected to the storage water tank other end, the circulating pump passes through water supply pipe and connects the spray pipe, the photovoltaic module top is located to the spray pipe, be equipped with the shower nozzle on the spray pipe, the circulating pump passes through the return water piping connection and sprays wastewater collection groove. This patent application adopts photovoltaic module upper portion water spray cleaning, and the waste water collecting vat is adopted to the lower part and is collected wasing water, and waste water used repeatedly after filtering has solved to a certain extent and has washd problem with high costs and that the cleaning efficiency is low, but it still exists following not enoughly:
1. sewage collected in the wastewater collection tank flows into the filtering device by adopting the self gravity of water, the flow velocity of the water flow is slow, dust in the sewage is easy to deposit at the bottom of the wastewater collection tank, and the wastewater collection tank is easy to block to lose the wastewater collection function after long-term operation;
2. the shower nozzle is from photovoltaic module top water spray cleaning, and in photovoltaic module's lower part, the scouring action of rivers reduces, mainly relies on rivers self gravity flow to wash, consequently piles up the dirt easily at photovoltaic module's lower extreme for the clean effect of photovoltaic module lower part is relatively poor.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of the existing photovoltaic module cleaning device and provides a photovoltaic module self-cleaning system, and by adopting the technical scheme of the invention, the inclined surface of the photovoltaic module is washed from top to bottom by a cleaning module with a spray washing function arranged at the upper end of the photovoltaic module, washing sewage is sucked out by a sewage suction module with an active suction function arranged at the lower end of the photovoltaic module, and meanwhile, a rotary brush arranged at a sewage suction nozzle is matched for bottom scrubbing, so that bottom dust deposition is effectively prevented, and the overall cleaning effect of the photovoltaic module is improved; and whole cleaning system has simple structure, washs with low costs, cleaning efficiency is high and wash advantage such as water conservation nature is good, has effectively guaranteed the security of photovoltaic power generation efficiency and power station operation.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a photovoltaic module self-cleaning system, which comprises a cleaning module arranged at the upper end of a photovoltaic module, a sewage suction module arranged at the lower end of the photovoltaic module and a control module, wherein:
the cleaning module is provided with a row of spraying devices distributed along the upper end of the front side of the photovoltaic module, and the cleaning module is connected with a photovoltaic power station water supply system or a purified water storage tank for supplying water to the spraying devices through a water inlet valve; the sewage suction module is provided with a row of sewage suction nozzles distributed along the lower end of the front side of the photovoltaic module, the sewage suction nozzles are connected with a water suction pump through a sewage suction pipe, the upper part of each sewage suction nozzle is provided with a rotary brush, and one end of the rotary brush is in transmission connection with a brush motor;
the control module is respectively in communication connection with the execution components of the cleaning module and the sewage suction module and is used for controlling the working states of the cleaning module and the sewage suction module; the control module comprises a control processor, a cleanliness detection module, a water quantity detection module, a power supply module, an abnormal alarm module, a switch module and a timing module, wherein the cleanliness detection module, the water quantity detection module, the power supply module, the abnormal alarm module, the switch module and the timing module are respectively in communication connection with the control processor; the water quantity detection module is used for monitoring natural rainfall, and the control processor controls the cleaning module to be out of work under the rainy day condition.
Furthermore, the cleaning module further comprises a water inlet pipe and a flow dividing pipe, the water inlet pipe is connected with a water supply system of the photovoltaic power station through a water inlet valve, the water inlet pipe is respectively connected with each spraying device through the flow dividing pipe, the water inlet pipe is further provided with a booster pump, the water inlet valve is an electric control valve, and the booster pump and the water inlet valve are respectively in communication connection with the control processor.
Furthermore, the cleaning module comprises a plurality of shunting modules fixedly installed at the upper end of the photovoltaic assembly, each shunting module is provided with a water distribution cavity connected with the water inlet pipe and a shunting pipe communicated with the water distribution cavity, each shunting module is provided with at least one shunting pipe, and a booster pump is arranged at the water inlet of each shunting module.
Furthermore, the shunt module is provided with a U-shaped clamping groove, and the shunt module is clamped on the upper frame of the photovoltaic module through the U-shaped clamping groove and is fastened and connected through screws.
Furthermore, the sewage suction module consists of a plurality of water suction modules fixedly arranged at the lower end of the photovoltaic module, the water suction modules are provided with U-shaped notches, and the water suction modules are clamped on the lower frame of the photovoltaic module through the U-shaped notches and are fastened and connected through screws; every the module of absorbing water on all have at least one soil pick-up mouth, each soil pick-up mouth is connected to the soil pick-up pipe that absorbs water and set up on the module through soil pick-up passageway respectively.
Furthermore, the control module is electrically connected with the cleaning module and the sewage suction module in a Bluetooth or WiFi mode.
Furthermore, the water storage tank is of a three-cavity structure and is respectively provided with a first cavity, a sewage treatment cavity and a second cavity, the first cavity, the sewage treatment cavity and the second cavity are sequentially connected, a water outlet of the water suction pump is connected with the first cavity through a blow-off pipe, the second cavity is connected with a water inlet valve inlet end of the cleaning module through a bypass branch pipe, and a water supply pump is arranged on the bypass branch pipe.
Furthermore, a cleaning agent feeding device is also arranged at the inlet end of the water inlet valve.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the invention relates to a photovoltaic module self-cleaning system, which comprises a cleaning module arranged at the upper end of a photovoltaic module, a sewage suction module arranged at the lower end of the photovoltaic module and a control module, wherein a sewage suction nozzle of the sewage suction module is connected with a water suction pump through a sewage suction pipe, a rotary brush capable of rotating is arranged at the upper part of the sewage suction nozzle, the inclined surface of the photovoltaic module is washed from top to bottom by a cleaning module with a spray washing function arranged at the upper end of the photovoltaic module, the sewage suction module with the active suction function arranged at the lower end of the photovoltaic module is used for sucking out the flushing sewage, meanwhile, the bottom of the photovoltaic component is brushed by matching with a rotary brush arranged at the dirt suction nozzle, so that the whole photovoltaic component can be washed from top to bottom, dust deposition at the bottom of the photovoltaic module is effectively prevented, and the overall cleaning effect of the photovoltaic module is improved; in addition, the dust on the surface of the photovoltaic module is cleaned by adopting the spray washing mode, the dust amount on the photovoltaic module is monitored by matching with a cleanliness detection module in the control module, the running state of the intelligent control cleaning system is realized, the cleaning is efficient and timely, the natural rainfall is monitored by utilizing the water amount detection module under the rainy day condition, and the natural cleaning effect is fully utilized, so that the whole cleaning system has the advantages of simple structure, low cleaning cost, high cleaning efficiency, good cleaning water conservation, high automation degree and the like, and the photovoltaic power generation efficiency and the safety of the running of a power station are effectively ensured;
(2) according to the photovoltaic module self-cleaning system, the cleaning module further comprises a water inlet pipe and a flow dividing pipe, the water inlet pipe is connected with a water supply system of a photovoltaic power station through a water inlet valve, the water inlet pipe is respectively connected with each spraying device through the flow dividing pipe, the water inlet pipe is also provided with a booster pump, the water inlet valve is an electric control valve, the booster pump and the water inlet valve are respectively in communication connection with the control processor, the flow dividing pipe is used for dividing the flow, and the booster pump is matched, so that the flushing pressure of the spraying devices can be ensured, the surface of the photovoltaic module is cleaned more cleanly, and the cleaning quality is effectively ensured;
(3) according to the photovoltaic module self-cleaning system, the cleaning module is composed of the plurality of shunting modules fixedly mounted at the upper end of the photovoltaic module, the sewage suction module is composed of the plurality of water suction modules fixedly mounted at the lower end of the photovoltaic module, the cleaning module and the sewage suction module are in modular design, so that the photovoltaic modules with different sizes can be conveniently mounted, the applicability of the cleaning module and the sewage suction module on the photovoltaic module is improved, and the convenience of field mounting is improved; the shunting module and the water absorption module are fixedly connected with the upper frame and the lower frame of the photovoltaic module by adopting U-shaped grooves, so that the structure design is simple, and the installation is convenient and reliable;
(4) according to the photovoltaic module self-cleaning system, the communication connection mode among the control module, the cleaning module and the sewage suction module is electric connection, Bluetooth connection or WiFi connection, the control module can cooperatively control the cleaning module and the sewage suction module through the control processor, the functions of system abnormity alarming, timing opening and closing and the like can be realized, and the intelligent full-automatic cleaning of the photovoltaic module is realized;
(5) according to the photovoltaic module self-cleaning system, the sewage suction module is also connected with the water storage tank, the water storage tank is respectively provided with the first cavity, the sewage treatment cavity and the second cavity, the water outlet of the water suction pump is connected with the first cavity through the sewage discharge pipe, the second cavity is connected with the inlet end of the water inlet valve of the cleaning module through the bypass branch pipe, the bypass branch pipe is provided with the water supply pump, sewage can be sent into the first cavity of the water storage tank through the water suction pump and is filtered and purified in the sewage treatment cavity, purified water is stored in the second cavity and can be sent into the cleaning module through the water supply pump for repeated secondary utilization, clean water sources are saved to the maximum extent, and meanwhile, the cleanness and smoothness of the ground where the photovoltaic module is installed are guaranteed;
(6) according to the photovoltaic module self-cleaning system, the cleaning module is connected with the photovoltaic power station water supply system or the purified water storage tank for supplying water to the spraying device through the water inlet valve, so that the water supply mode can be flexibly selected, and a more flexible choice is provided for cleaning the photovoltaic power station or the photovoltaic module which is small in scale and inconvenient to access to the water supply system;
(7) according to the photovoltaic module self-cleaning system, the inlet end of the water inlet valve is also provided with the cleaning agent adding device, so that cleaning agent can be supplemented during cleaning, the cleaning effect of the photovoltaic module is improved, and the surface cleanliness of the photovoltaic module is ensured.
Drawings
FIG. 1 is a schematic front view of a photovoltaic module self-cleaning system of the present invention mounted on a photovoltaic module;
FIG. 2 is a schematic diagram of a hardware structure connection of a photovoltaic module self-cleaning system according to the present invention;
FIG. 3 is a system block diagram of a photovoltaic module self-cleaning system of the present invention;
fig. 4 is a schematic structural diagram of the shunt module in the present invention.
The reference numerals in the schematic drawings illustrate:
1. a photovoltaic module; 2. a cleaning module; 21. a spraying device; 22. a shunt tube; 23. a photovoltaic power station water supply system; 24. a water inlet valve; 25. a water inlet pipe; 26. a shunting module; 26-1, U-shaped clamping grooves; 3. a sewage suction module; 31. a sewage suction nozzle; 32. a sewage suction pipe; 33. a water suction pump; 34. a blow-off pipe; 35. rotating the brush; 36. a brush motor; 37. a bypass branch pipe; 38. a water supply pump; 41. a first cavity; 42. a sewage treatment chamber; 43. a second cavity; 5. a control module; 51. a control processor; 52. a cleanliness detection module; 53. a water quantity detection module; 54. a power supply module; 55. an anomaly alarm module; 56. a switch module; 57. and a timing module.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
[ examples ]
Referring to fig. 1, 2 and 3, the self-cleaning system for photovoltaic modules of this embodiment comprises a cleaning module 2 disposed at the upper end of a photovoltaic module 1, a sewage absorbing module 3 disposed at the lower end of the photovoltaic module 1, and a control module 5, wherein,
the photovoltaic component 1 is arranged obliquely, the cleaning module 2 is provided with a row of spraying devices 21 which are distributed along the upper end of the front surface of the photovoltaic component 1, the spraying devices 21 preferably use high-pressure nozzles, the spraying devices 21 are close to the front surface of the photovoltaic component 1, and the spraying direction slightly faces downwards to the surface of the photovoltaic module 1, so that the spraying device 21 can uniformly spray cleaning water mist on the front surface of the photovoltaic module 1, the dust on the surface of the photovoltaic module 1 is washed away by the spraying action of clean water, the cleaning module 2 is connected with a photovoltaic power station water supply system 23 or a clean water storage tank for supplying water to the spraying device 21 through a water inlet valve 24, according to the specific installation condition of the photovoltaic power station or the photovoltaic module, the water supply mode can be flexibly selected, and more flexible selection is provided for cleaning the photovoltaic power station or the photovoltaic module which is small in scale and inconvenient to access to a water supply system. The sewage suction module 3 is arranged opposite to the cleaning module 2, a row of sewage suction nozzles 31 distributed along the lower end of the front side of the photovoltaic module 1 are arranged on the sewage suction module 3, the sewage suction nozzles 31 are connected with a water suction pump 33 through a sewage suction pipe 32, and the water suction pump 33 can actively suck, so that sewage and dust sediments can be forcibly discharged in time; in addition, because sewage flows down along photovoltaic module 1's installation inclination, the dirt is piled up easily to photovoltaic module 1's lower extreme, consequently be equipped with rotatory brush 35 on dirt suction nozzle 31 upper portion, the one end and the brush motor 36 transmission of rotatory brush 35 are connected, rotatory brush 35 level sets up the lower part at photovoltaic module 1, by brush motor 36 drive rotatory brush 35 rotary motion, scrub the dirt suction nozzle 31 of photovoltaic module 1 bottom, further prevent that photovoltaic module 1 lower part from piling up the dirt, compensate cleaning module 2 and reduce the lower part washing force of photovoltaic module 1 and lead to the not enough of the partial deposit dirt of dirt suction nozzle 31, guarantee abluent quality.
The control module 5 is in communication connection with the execution components of the cleaning module 2 and the sewage suction module 3 respectively, and is used for controlling the working states of the cleaning module 2 and the sewage suction module 3. Specifically, as shown in fig. 3, the control module 5 includes a control processor 51, a cleanliness detection module 52, a water amount detection module 53, a power supply module 54, an abnormality alarm module 55, a switch module 56, and a timing module 57, the cleanliness detection module 52, the water amount detection module 53, the power supply module 54, the abnormality alarm module 55, the switch module 56, and the timing module 57 are respectively connected to the control processor 51 in a communication manner, the cleanliness detection module 52 is disposed on the photovoltaic module 1 and is used for collecting dust amount on the photovoltaic module 1, the control processor 51 controls working states of the cleaning module 2 and the sewage suction module 3 according to a dust amount signal collected by the cleanliness detection module 52, that is, when the cleanliness detection module 52 detects that there is much dust on the photovoltaic module 1, the control processor 51 generates a control signal to an execution component of the cleaning module 2 and the sewage suction module 3, causing the cleaning module 2 and the sewage suction module 3 to perform a cleaning action. The cleanliness detection module 52 may employ an existing dust monitoring sensor, which monitors the optical transmission loss caused by dust deposition on the photovoltaic panel by using a novel optical dust measurement (OSM) technology, so as to reflect the degree of contamination on the surface of the photovoltaic module 1. The water quantity detection module 53 is used for monitoring the natural rainfall, the control processor 51 controls the cleaning module 2 not to work under the rainy day condition, and the natural cleaning function of rainwater is fully utilized; this water yield detection module 53 can adopt current rainfall detection sensor, can real-time detection environment rainfall, confirms when the rainfall is great at water yield detection module 53, by the asynchronous work of control treater 51 control cleaning module 2 and sewage suction module 3, utilizes natural rainfall to wash, practices thrift clean water. The power module 54 is used for supplying power to the control module 5, the abnormal alarm module 55 is used for sending an alarm signal when the system is abnormal so as to overhaul the system in time, the switch module 56 is used for controlling the starting and closing of the photovoltaic module self-cleaning system, and the timing module 57 is used for realizing a timing cleaning function. The power module 54, the abnormality warning module 55, the switch module 56 and the timing module 57 are also conventional functional modules, and the specific operation principle thereof will not be described in detail herein.
According to the self-cleaning system of the photovoltaic module, when the surface of the photovoltaic module 1 is detected to have dust and dirt, the cleaning mode is automatically started, the cleaning module 2 provides sufficient water source for cleaning the photovoltaic module 1, the spraying device 21 close to the front surface of the photovoltaic module 1 uniformly sprays water drops onto the surface of the photovoltaic module 1 with impulsive force after pressurization treatment, and water mist flows to the lower end of the photovoltaic module 1 along the upper end of the photovoltaic module 1 under the action of gravity to clean the photovoltaic module 1, so that the purpose of cleaning the surface of the photovoltaic module 1 is achieved; set up in the sewage module 3 that inhales of photovoltaic module 1 lower extreme, sewage after will wasing is inhaled the sewage suction pipe 32 through setting up at the dirt suction nozzle 31 of foremost under the effect of water suction pump 33, realize sewage discharge's effect, effectively solved because of the clean cycle length of photovoltaic module, high cost, the inefficiency leads to photovoltaic module dirt clearance untimely, and then influence photovoltaic power plant generating efficiency, cause the hotspot effect even, cause photovoltaic module large tracts of land to damage, the security is difficult to the problem of guarantee, high efficiency has been realized, in time clean photovoltaic module, photovoltaic generating efficiency and power station operation's security has been guaranteed.
As shown in fig. 2, in this embodiment, the cleaning module 2 further includes a water inlet pipe 25 and a water dividing pipe 22, the water inlet pipe 25 is connected to the photovoltaic power station water supply system 23 or the purified water storage tank through a water inlet valve 24, the water inlet pipe 25 is connected to each spraying device 21 through the water dividing pipe 22, so that each spraying device 21 can be connected to realize simultaneous water supply of each spraying device 21, the pipe diameter of the water inlet pipe 25 is larger than the pipe diameter of the water dividing pipe 22, the pipe diameter changes from thick to thin, the pressure of water is increased, and it is further ensured that water droplets sprayed by the spraying devices 21 are uniform and have impulsive force, the water inlet pipe 25 is further provided with a booster pump, the water inlet valve 24 is an electric control valve, the booster pump and the water inlet valve 24 are respectively in communication connection with the control processor 51, the control processor 51 controls the states of the booster pump and the water inlet valve 24, the booster pump can be used to boost the water entering the spraying devices 21, can guarantee atomizer 21's washing pressure for photovoltaic module 1 surface cleaning is cleaner, effectively guarantees cleaning quality. In order to facilitate the installation of the cleaning module 2 on the photovoltaic module 1, the cleaning module 2 is composed of a plurality of shunting modules 26 fixedly installed at the upper end of the photovoltaic module 1, the structure of the shunting module 26 is shown in fig. 4, the shunting module 26 is provided with a water distribution cavity connected with a water inlet pipe 25 and shunting pipes 22 communicated with the water distribution cavity, each shunting module 26 is provided with at least one shunting pipe 22, a booster pump is arranged at a water inlet of each shunting module 26, the shunting modules 26 are installed at the upper end of the photovoltaic module 1 side by side, water inlets of the shunting modules 26 are respectively connected with the water inlet pipe 25, the booster pump is used for boosting water entering each shunting module 26, and the water spray pressure in each shunting module 26 is ensured. The shunt module 26 is provided with a U-shaped clamping groove 26-1, the shunt module 26 is clamped on the upper frame of the photovoltaic assembly 1 through the U-shaped clamping groove 26-1 and is fastened and connected through screws, specifically, the side wall of the U-shaped clamping groove 26-1 is provided with threaded holes, and after the U-shaped clamping groove 26-1 is clamped on the upper frame of the photovoltaic assembly 1, the shunt module 26 can be fixedly connected with the photovoltaic assembly 1 through screws. Similarly, in this embodiment, the sewage suction module 3 is also composed of a plurality of water suction modules fixedly installed at the lower end of the photovoltaic module 1, the structure of the water suction module is similar to that of the shunting module 26, the water suction module is provided with a U-shaped notch, the water suction module is clamped on the lower frame of the photovoltaic module 1 through the U-shaped notch and is fastened and connected through screws, and the specific installation mode of the water suction module is the same as that of the shunting module 26; every module of absorbing water all has at least one soil pick-up mouth 31 on, and each soil pick-up mouth 31 is connected to the soil pick-up pipe 32 that sets up on the module of absorbing water through the soil pick-up passageway respectively on, realizes absorbing water and collects on the module each soil pick-up mouth 31 is on soil pick-up pipe 32, and the soil pick-up pipe 32 of each module of absorbing water is connected with suction pump 33 after connecting gradually. The cleaning module 2 and the sewage absorbing module 3 are in modular design, so that the photovoltaic modules 1 with different sizes can be conveniently installed, the applicability of the cleaning module 2 and the sewage absorbing module 3 on the photovoltaic modules 1 is improved, and the convenience of field installation is improved; and shunting module 26 and the module that absorbs water all adopt U-shaped groove and photovoltaic module 1 upper and lower frame fixed connection, structural design is simple, and simple to operate is reliable.
As shown in fig. 3, the communication connection mode between the control module 5 and the cleaning module 2 and between the control module 5 and the sewage suction module 3 is electric connection, bluetooth connection or WiFi connection, and the control module 5 can cooperatively control the cleaning module 2 and the sewage suction module 3 through the control processor 51, so that the functions of system abnormity warning, timing on and off and the like can be realized, and the intelligent full-automatic cleaning of the photovoltaic module 1 is realized. Specifically, the control processor 51 can control the pumping water supply system of the photovoltaic power station water supply system 23 or the pure water storage tank, the booster pump and the water inlet valve 24 of the cleaning module 2, the water suction pump 33 of the sewage suction module 3 and the brush motor 36 to cooperate with the cleaning module 2 and the sewage suction module 3 to perform self-cleaning of the photovoltaic module 1.
In order to save cleaning water, the photovoltaic module self-cleaning system of the embodiment further comprises a water storage tank, the water storage tank is of a three-cavity structure and is respectively provided with a first cavity 41, a sewage treatment cavity 42 and a second cavity 43, the first cavity 41, the sewage treatment cavity 42 and the second cavity 43 are sequentially connected, a water outlet of the water suction pump 33 is connected with the first cavity 41 through a sewage discharge pipe 34, the first cavity 41 is used for storing sewage conveyed by the water suction pump 33, the sewage in the first cavity 41 enters the sewage treatment cavity 42 for standing and purification, clean water filtered in the sewage treatment cavity 42 enters the second cavity 43, the second cavity 43 is connected with the inlet end 24 of the cleaning module 2 through a bypass branch pipe 37, the water supply pump 38 is arranged on the bypass branch pipe 37, the water purified in the second cavity 43 can be input into the cleaning module 2 for secondary utilization by the water supply pump 38, and a cleaning water source is saved to the maximum extent, meanwhile, the cleanness and the smoothness of the ground for installing the photovoltaic module are ensured. Specifically in this embodiment, the three cavities of storage water tank can be separated by the filter screen and form, sets up in sewage treatment chamber 42 and filters the filler, realizes the filtration of dust in the sewage, still can set up flocculating agent simultaneously and throw feeder apparatus in sewage treatment chamber 42, adds a certain amount of flocculating agent to sewage treatment chamber 42 and makes the dust flocculation and precipitation in the sewage, is convenient for filter. In addition, in order to improve the cleaning effect, a cleaning agent adding device is further arranged at the inlet end of the water inlet valve 24, and the cleaning agent adding device can add a cleaning agent into the water inlet pipe when the cleaning module 2 works, so that the cleaning effect of the photovoltaic module is improved, and the surface cleanliness of the photovoltaic module is ensured.
The photovoltaic module self-cleaning system comprises a cleaning module arranged at the upper end of a photovoltaic module, a sewage suction module arranged at the lower end of the photovoltaic module and a control module, wherein a sewage suction nozzle of the sewage suction module is connected with a water suction pump through a sewage suction pipe, a rotary brush capable of rotating is arranged at the upper part of the sewage suction nozzle, the inclined surface of the photovoltaic module is washed from top to bottom through the cleaning module with a spray washing function arranged at the upper end of the photovoltaic module, the washing sewage is sucked out through the sewage suction module with an active suction function arranged at the lower end of the photovoltaic module, and meanwhile, the rotary brush arranged at the sewage suction nozzle is matched for bottom brushing, so that bottom dust deposition is effectively prevented, and the overall cleaning effect of the photovoltaic module is improved; and whole cleaning system has simple structure, washs with low costs, cleaning efficiency is high and wash advantage such as water conservation nature is good, has effectively guaranteed the security of photovoltaic power generation efficiency and power station operation. The photovoltaic module self-cleaning system solves the problems that dust and dirt of the photovoltaic module are not cleaned timely due to long cleaning period, high cost and low efficiency of the photovoltaic module, the power generation efficiency of a photovoltaic power station is further influenced, even hot spot effect is caused, the photovoltaic module is damaged in a large area, and safety is difficult to guarantee.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (8)
1. The utility model provides a photovoltaic module is from cleaning system, is including locating clean module (2) of photovoltaic module (1) upper end, locating sewage suction module (3) and control module (5) of photovoltaic module (1) lower extreme, its characterized in that:
the cleaning module (2) is provided with a row of spraying devices (21) which are distributed along the upper end of the front side of the photovoltaic module (1), and the cleaning module (2) is connected with a photovoltaic power station water supply system (23) or a purified water storage tank which is used for supplying water to the spraying devices (21) through a water inlet valve (24); the sewage suction module (3) is provided with a row of sewage suction nozzles (31) which are distributed along the lower end of the front surface of the photovoltaic module (1), the sewage suction nozzles (31) are connected with a water suction pump (33) through a sewage suction pipe (32), the upper part of the sewage suction nozzles (31) is provided with a rotary brush (35), and one end of the rotary brush (35) is in transmission connection with a brush motor (36);
the control module (5) is respectively in communication connection with the execution components of the cleaning module (2) and the sewage suction module (3) and is used for controlling the working states of the cleaning module (2) and the sewage suction module (3); the control module (5) comprises a control processor (51), a cleanliness detection module (52), a water quantity detection module (53), a power supply module (54), an abnormity alarm module (55), a switch module (56) and a timing module (57), wherein the cleanliness detection module (52), the water quantity detection module (53), the power supply module (54), the abnormity alarm module (55), the switch module (56) and the timing module (57) are respectively in communication connection with the control processor (51), the cleanliness detection module (52) is arranged on the photovoltaic assembly (1) and used for collecting dust quantity on the photovoltaic assembly (1), and the control processor (51) controls the working states of the cleaning module (2) and the sewage suction module (3) according to dust quantity signals collected by the cleanliness detection module (52); the water quantity detection module (53) is used for monitoring natural rainfall, and the cleaning module (2) is controlled by the control processor (51) to be out of work in rainy days.
2. A photovoltaic module self-cleaning system as claimed in claim 1, wherein: clean module (2) still include inlet tube (25) and shunt tubes (22), inlet tube (25) be connected with photovoltaic power plant water supply system (23) or water purification water storage box through water intaking valve (24), inlet tube (25) be connected with each atomizer (21) through shunt tubes (22) respectively, inlet tube (25) on still be equipped with the booster pump, water intaking valve (24) be electric control valve, booster pump and water intaking valve (24) respectively with control processor (51) communication connection.
3. A photovoltaic module self-cleaning system as claimed in claim 2, wherein: clean module (2) constitute by a plurality of fixed mounting in reposition of redundant personnel module (26) of photovoltaic module (1) upper end, reposition of redundant personnel module (26) have the water distribution chamber that is connected with inlet tube (25) and shunt tubes (22) that are linked together with the water distribution chamber, every reposition of redundant personnel module (26) on have at least one shunt tubes (22), and all be equipped with a booster pump in the water inlet department of every reposition of redundant personnel module (26).
4. A photovoltaic module self-cleaning system according to claim 3, wherein: the photovoltaic module is characterized in that a U-shaped clamping groove (26-1) is formed in the shunt module (26), and the shunt module (26) is clamped on an upper frame of the photovoltaic module (1) through the U-shaped clamping groove (26-1) and is fixedly connected through screws.
5. A photovoltaic module self-cleaning system according to claim 4, wherein: the sewage absorption module (3) is composed of a plurality of water absorption modules fixedly arranged at the lower end of the photovoltaic assembly (1), U-shaped notches are formed in the water absorption modules, and the water absorption modules are clamped on a lower frame of the photovoltaic assembly (1) through the U-shaped notches and are fastened and connected through screws; every the module of absorbing water on all have at least one soil pick-up mouth (31), each soil pick-up mouth (31) is connected to on the soil pick-up pipe (32) that the module of absorbing water set up through soil pick-up passageway respectively.
6. A photovoltaic module self-cleaning system as claimed in claim 1, wherein: the communication connection mode between the control module (5) and the cleaning module (2) and between the control module and the sewage suction module (3) is electric connection, Bluetooth connection or WiFi connection.
7. A photovoltaic module self-cleaning system according to any one of claims 1 to 6, wherein: still include the storage water tank, the storage water tank be three cavity structures, be first cavity (41), sewage treatment chamber (42) and second cavity (43) respectively, first cavity (41), sewage treatment chamber (42) and second cavity (43) link to each other in proper order, the delivery port of suction pump (33) be connected with first cavity (41) through blow off pipe (34), second cavity (43) be connected through bypass branch pipe (37) with water intaking valve (24) entrance point of clean module (2), and be equipped with working shaft (38) on bypass branch pipe (37).
8. A photovoltaic module self-cleaning system according to claim 7, wherein: and a cleaning agent feeding device is also arranged at the inlet end of the water inlet valve (24).
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| CN113565275A (en) * | 2021-08-31 | 2021-10-29 | 保定嘉盛光电科技股份有限公司 | Automatically cleaning photovoltaic roof system |
| CN114006577A (en) * | 2021-10-29 | 2022-02-01 | 华能青铜峡新能源发电有限公司 | Automatically cleaning cooling type photovoltaic power generation system |
| CN115041450B (en) * | 2022-06-17 | 2023-05-05 | 几何智慧城市科技(广州)有限公司 | Photovoltaic glass plate cleaning method, system, computer equipment and storage medium |
| CN116192024B (en) * | 2022-09-09 | 2024-01-23 | 苏州吉弘能源科技有限公司 | Photovoltaic power generation device with high power generation efficiency |
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| CN107508542A (en) * | 2017-09-29 | 2017-12-22 | 谷香梅 | The solar panel of automated cleaning |
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Effective date of registration: 20231205 Address after: Building 10, No. 860, Xinyang Road, Lingang New District, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: China Communications Photovoltaic Technology Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231205 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 33 Gehu Middle Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU VOCATIONAL INSTITUTE OF ENGINEERING |