CN109088594B - Snow removal system for photovoltaic photo-thermal device and control method thereof - Google Patents
Snow removal system for photovoltaic photo-thermal device and control method thereof Download PDFInfo
- Publication number
- CN109088594B CN109088594B CN201810770244.6A CN201810770244A CN109088594B CN 109088594 B CN109088594 B CN 109088594B CN 201810770244 A CN201810770244 A CN 201810770244A CN 109088594 B CN109088594 B CN 109088594B
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- laser
- laser receiver
- snow
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract 2
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001124156 Mecoptera Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
-
- 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
- H02S40/12—Means for removing snow
-
- 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
-
- 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
Abstract
The invention discloses a snow removing system for a photovoltaic photo-thermal device, wherein the photovoltaic photo-thermal device is provided with at least one photovoltaic plate which is fixed in an inclined manner, the upper brim of each photovoltaic plate is fixed with a cleaning branch pipe which is arranged horizontally, each cleaning branch pipe is uniformly provided with a hole for spraying water to the upper surface of the photovoltaic plate, each cleaning branch pipe is communicated with a main water supply pipe, the water inlet end of the main water supply pipe is connected with the outlet of a three-way electromagnetic valve, one inlet of the three-way electromagnetic valve is connected with a water pump, and the water pump is arranged in a hot water tank and pumps water to the main water supply pipe. The snow removing system can automatically identify the snow accumulation condition, intelligently select a proper time to remove snow, work is stable and reliable, energy is saved, environment is protected, and the working efficiency of the photovoltaic photo-thermal device is ensured.
Description
Technical Field
The invention relates to the field of photovoltaics, in particular to a cleaning system for a photovoltaic panel.
Background
Photovoltaic power generation or light and heat utilization project, now can see everywhere in our country, but photovoltaic cell board or light and heat absorption equipment expose outside throughout the year, when snow flies in winter, snow can pile up at the panel, has seriously influenced generating efficiency again.
At present, snow cleaning work of photovoltaic panels mostly adopts manual snow shoveling and cleaning, and the water gun is recycled to wash out and complete cleaning work, so that time and labor are wasted, the photovoltaic panels cannot be cleaned in time, and power generation efficiency is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of realizing a snow removing system capable of automatically cleaning a photovoltaic panel.
In order to achieve the purpose, the invention adopts the technical scheme that: a snow removing system for photovoltaic light and heat device, photovoltaic light and heat device are equipped with the fixed photovoltaic board of an at least slope, every the last eaves of photovoltaic board all is fixed with the clean branch pipe that a level set up, every evenly be provided with the hole to photovoltaic board upper surface injection water on the clean branch pipe, every clean branch pipe all is responsible for the intercommunication with supplying water, the export of tee bend solenoid valve is connected to the end of intaking that the water supply was responsible for, one of them access connection water pump of tee bend solenoid valve, the water pump is installed and is responsible for the pump water to supplying water in the hot-water tank.
And the other inlet of the three-way electromagnetic valve is connected with an air pump.
Every photovoltaic board is improved level and is provided with many clean branch pipes, every clean branch pipe all is responsible for the intercommunication with the water supply, and the last eaves of photovoltaic board is fixed to one of them clean branch pipe on every photovoltaic board, and other clean branch pipes are all fixed on the photovoltaic board surface.
The system is provided with a photo-thermal mechanism for supplying hot water to the hot water tank.
The system is provided with a controller, the controller is provided with a communication module, the communication module is communicated with the far-end server, and the controller outputs driving signals to the water pump and the air pump.
Be equipped with snow response mechanism on one of them photovoltaic board of photovoltaic light and heat device, snow response mechanism is including fixing at photovoltaic board both sides matched with laser emitter and laser receiver, laser emitter and laser receiver pass through the connecting rod and connect, the connecting rod is fixed on the hydraulic stem of slant pneumatic cylinder, slant pneumatic cylinder drive connecting rod makes laser emitter and laser receiver slide along the photovoltaic board side, the slant pneumatic cylinder is fixed on the hydraulic stem of perpendicular pneumatic cylinder, slant pneumatic cylinder drive slant pneumatic cylinder up-and-down motion, controller output drive signal to laser emitter, slant pneumatic cylinder and perpendicular pneumatic cylinder, laser receiver output sense signal to controller.
Based on the control method of the snow removal system, the control method comprises the following steps:
when the snow removing function is started, the water pump is driven to start working;
after the water pump works for a set time, the water pump is closed, and the air pump is started;
and after the air pump works for a set time, closing the air pump.
The initial positions of the laser transmitter and the laser receiver are higher than the upper surface of the photovoltaic panel by 0.1-10 mm, a signal whether an obstacle exists between the laser transmitter and the laser receiver is acquired at intervals of a set time, and if the obstacle signal is received, a snow removing function is started.
1) The initial positions of the laser transmitter and the laser receiver are 0.5-10 mm higher than the upper surface of the photovoltaic panel, the inclined hydraulic cylinder pushes the laser transmitter and the laser receiver to reciprocate once along the side edge of the photovoltaic panel at intervals of set time, and if an obstacle exists between the laser transmitter and the laser receiver in the reciprocating process, the next step is executed;
2) whether the vertical hydraulic cylinder rises to the top end or not, if so, executing the step 5), otherwise, rising the vertical hydraulic cylinder by a set distance;
3) the oblique hydraulic cylinder pushes the laser transmitter and the laser receiver to reciprocate once along the side edge of the photovoltaic panel, if an obstacle exists between the laser transmitter and the laser receiver, the operation returns to step 2), and if not, the next step is executed;
4) keeping the current state of the vertical hydraulic cylinder, driving the inclined hydraulic cylinder to push the laser transmitter and the laser receiver to reciprocate once along the side of the photovoltaic plate after a set time, if an obstacle exists between the laser transmitter and the laser receiver, returning to step 2), and if not, executing the next step;
5) the snow removal function is activated.
Also comprises the following steps
6) Returning the laser transmitter and the laser receiver to the initial positions;
7) after the snow removing function is finished, the oblique hydraulic cylinder pushes the laser emitter and the laser receiver to reciprocate once along the side of the photovoltaic panel, if in the reciprocating process, an obstacle exists between the laser emitter and the laser receiver, then the obstacle returns to 5), and if the snow removing function is continuously started to reach the set number of times, the system is closed and an alarm is given.
The snow removing system can automatically identify the snow accumulation condition, intelligently select a proper time to remove snow, work is stable and reliable, energy is saved, environment is protected, and the working efficiency of the photovoltaic photo-thermal device is ensured.
Drawings
The following is a brief description of the contents of each figure and the symbols in the figures in the description of the invention:
FIG. 1 is a schematic view of a snow removal system for a photovoltaic photothermal device;
the labels in the above figures are: 1. a photovoltaic panel; 2. cleaning the branch pipe; 3. a water supply main pipe; 4. a three-way electromagnetic valve; 5. a water pump; 6. a hot water tank; 7. an air pump; 8. a laser transmitter; 9. a connecting rod; 10. a laser receiver; 11. an oblique hydraulic cylinder; 12. and a vertical hydraulic cylinder.
Detailed Description
Photovoltaic light and heat device is equipped with at least one fixed photovoltaic board 1 of slope, be equipped with polylith photovoltaic board 1 usually, every photovoltaic board 1 is improved level and is provided with many clean branch pipes 2, at least, set up one, the last eaves at photovoltaic board 1 is fixed with clean branch pipe 2, if set up a plurality of clean branch pipes 2, then other clean branch pipe 2 evenly distributed is on photovoltaic board 1, and only the level is fixed, evenly distributed, clean branch pipe 2 pastes almost on photovoltaic board 1, evenly be equipped with the hole that is used for water spray (gas) along every clean branch pipe 2, the hole sets up under clean branch pipe 2 or the side below, to the water jet of photovoltaic board 1 upper surface.
Every clean branch pipe 2's one end all is responsible for 3 intercommunications with the water supply, the other end is sealed, the water supply is responsible for 3 intake end connection three solenoid valve 4's export of 3, one of them access connection water pump 5 of three solenoid valve 4, water pump 5 is installed and is responsible for 3 pump waters to the water supply in hot-water tank 6, can spray hot water on photovoltaic board 1 through water pump 5, and produce the high pressure, can get rid of the snow on photovoltaic board 1 by very efficient, hot-water tank 6 can be equipped with the light and heat mechanism for its hot water that provides, light and heat mechanism is solar water heating system promptly, automatic supplementary hot water, energy-concervin.
Another access connection air pump 7 of three solenoid valve 4, air pump 7 can be responsible for 3 and clean branch pipe 2 interior blowing to supplying water, high-pressure gas has two effects, first ponding of being responsible for 3 and clean branch pipe 2 of getting rid of the water supply, can avoid the water pipe to freeze and block up, the second can blow to 1 surface of photovoltaic board, blow off the ponding on 1 surface of photovoltaic board fast, can avoid (night) 1 surface of photovoltaic board to can further play the effect of blowing off snow.
Be equipped with snow induction mechanism on one of them photovoltaic board 1 of photovoltaic light and heat device, as shown in fig. 1, snow induction mechanism is including fixing at photovoltaic board 1 both sides matched with laser emitter 8 and laser receiver 10, laser emitter 8 and laser receiver 10 highly are higher than the height of clean branch pipe 2, laser emitter 8 and laser receiver 10 initial position are higher than photovoltaic board 1 upper surface 0.1mm-10mm department, reserve the clearance of installing clean branch pipe 2, can avoid interfering, laser emitter 8 and laser receiver 10 pass through connecting rod 9 and connect, connecting rod 9 is the shape of upwards hunch-up, laser emitter 8 sends laser signal, laser receiver 10 receives the laser signal that it sent, be used for judging whether there is the barrier between the two.
Whether the whole face of understanding photovoltaic board 1 that can be accurate has snow, then connecting rod 9 is fixed on the hydraulic stem of slant pneumatic cylinder 11, and the inclination of slant pneumatic cylinder 11 is the same with photovoltaic board 1's inclination, and slant pneumatic cylinder 11 drive connecting rod 9 makes laser emitter 8 and laser receiver 10 slide along photovoltaic board 1 side, and whether response photovoltaic board 1 whole face has snow.
In order to be able to obtain the thickness of the snow cover and whether it is still snowing, the tilting cylinder 11 is fixed to the hydraulic rod of the vertical hydraulic cylinder 12, and the tilting hydraulic cylinder 11 drives the tilting hydraulic cylinder 11 to move up and down.
The system is provided with a controller, the controller is provided with a communication module, the communication module is communicated with the far-end server, the controller outputs driving signals to the three-way electromagnetic valve 4, the water pump 5, the air pump 7, the laser emitter 8, the inclined hydraulic cylinder 11 and the vertical hydraulic cylinder 12, and the laser receiver 10 outputs sensing signals to the controller.
Based on the control method of the snow removal system, the control method comprises the following steps:
when the snow removing function is started, the three-way electromagnetic valve 4 is controlled to be only communicated with the water pump 5, and then the water pump 5 is driven to start working;
after the water pump 5 works for a set time, the water pump 5 is closed, the three-way electromagnetic valve 4 is controlled to be only communicated with the air pump 7, and then the air pump 7 is opened;
after the air pump 7 works for a set time, the air pump 7 is closed.
In order to be able to automatically activate the snow removal function, the following two embodiments may be employed:
example 1:
the initial positions of the laser transmitter 8 and the laser receiver 10 are higher than the upper surface of the photovoltaic panel 1 by 0.1-10 mm, a signal whether a barrier exists between the laser transmitter 8 and the laser receiver 10 is acquired at set intervals, and if the barrier signal is received, the snow removing function is started.
Example 2:
1) the initial positions of the laser emitter 8 and the laser receiver 10 are 0.5-10 mm higher than the upper surface of the photovoltaic panel 1, the inclined hydraulic cylinder 11 pushes the laser emitter 8 and the laser receiver 10 to reciprocate once along the side edge of the photovoltaic panel 1 at intervals of set time, and if an obstacle exists between the laser emitter 8 and the laser receiver 10 in the reciprocating process, the next step is executed;
2) whether the vertical hydraulic cylinder 12 rises to the top end or not, if so, executing the step 5), otherwise, the vertical hydraulic cylinder 12 rises for a set distance;
3) the oblique hydraulic cylinder 11 pushes the laser transmitter 8 and the laser receiver 10 to reciprocate once along the side edge of the photovoltaic panel 1, if an obstacle exists between the laser transmitter 8 and the laser receiver 10, the operation returns to step 2), and if the obstacle does not exist, the next step is executed;
4) keeping the current state of the vertical hydraulic cylinder 12, driving the inclined hydraulic cylinder 11 to push the laser emitter 8 and the laser receiver 10 to reciprocate once along the side edge of the photovoltaic panel 1 after a set time, if an obstacle exists between the laser emitter 8 and the laser receiver 10, returning to step 2), and if not, executing the next step;
5) the snow removal function is activated.
6) The laser transmitter 8 and the laser receiver 10 return to the initial positions;
7) after the snow removing function is finished, the oblique hydraulic cylinder 11 pushes the laser transmitter 8 and the laser receiver 10 to reciprocate once along the side edge of the photovoltaic panel 1, if in the reciprocating process, an obstacle exists between the laser transmitter 8 and the laser receiver 10, then the obstacle returns to 5), and if the snow removing function is continuously started to reach the set times, the system is closed and an alarm is given.
And 2) the snow removing function is started once when the vertical hydraulic cylinder 12 rises to the top, the snow is removed once when the snow is thick.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (9)
1. A snow removing system for photovoltaic light and heat device, photovoltaic light and heat device are equipped with the fixed photovoltaic board of at least slope, its characterized in that: a cleaning branch pipe which is horizontally arranged is fixed on the upper eave of each photovoltaic plate, holes for spraying water to the upper surface of the photovoltaic plate are uniformly formed in each cleaning branch pipe, each cleaning branch pipe is communicated with a water supply main pipe, the water inlet end of the water supply main pipe is connected with the outlet of a three-way electromagnetic valve, one inlet of the three-way electromagnetic valve is connected with a water pump, and the water pump is installed in a hot water tank and pumps water to the water supply main pipe;
be equipped with snow response mechanism on one of them photovoltaic board of photovoltaic light and heat device, snow response mechanism is including fixing at photovoltaic board both sides matched with laser emitter and laser receiver, laser emitter and laser receiver pass through the connecting rod and connect, the connecting rod is fixed on the hydraulic stem of slant pneumatic cylinder, slant pneumatic cylinder drive connecting rod makes laser emitter and laser receiver slide along the photovoltaic board side, the slant pneumatic cylinder is fixed on the hydraulic stem of perpendicular pneumatic cylinder, slant pneumatic cylinder drive slant pneumatic cylinder up-and-down motion, the system is equipped with the controller, controller output drive signal to laser emitter, slant pneumatic cylinder and perpendicular pneumatic cylinder, laser receiver output sense signal to controller.
2. The snow removal system for a photovoltaic photothermal device according to claim 1, characterized in that: and the other inlet of the three-way electromagnetic valve is connected with an air pump.
3. The snow removal system for a photovoltaic photothermal device according to claim 2, characterized in that: every photovoltaic board is improved level and is provided with many clean branch pipes, every clean branch pipe all is responsible for the intercommunication with the water supply, and the last eaves of photovoltaic board is fixed to one of them clean branch pipe on every photovoltaic board, and other clean branch pipes are all fixed on the photovoltaic board surface.
4. A snow removal system for a photovoltaic photothermal device according to claim 1, 2 or 3, wherein: the system is provided with a photo-thermal mechanism for supplying hot water to the hot water tank.
5. The snow removal system for a photovoltaic photothermal device according to claim 4, characterized in that: the controller is provided with a communication module, the communication module is communicated with the far-end server, and the controller outputs driving signals to the three-way electromagnetic valve, the water pump and the air pump.
6. The snow removal system control method according to claim 5, characterized by comprising:
when the snow removing function is started, the water pump is driven to start working;
after the water pump works for a set time, the water pump is closed, and the air pump is started;
and after the air pump works for a set time, closing the air pump.
7. The control method according to claim 6, characterized in that:
the initial positions of the laser transmitter and the laser receiver are higher than the upper surface of the photovoltaic panel by 0.1-10 mm, a signal whether an obstacle exists between the laser transmitter and the laser receiver is acquired at intervals of a set time, and if the obstacle signal is received, a snow removing function is started.
8. The control method according to claim 6, characterized in that:
1) the initial positions of the laser transmitter and the laser receiver are 0.5-10 mm higher than the upper surface of the photovoltaic panel, the inclined hydraulic cylinder pushes the laser transmitter and the laser receiver to reciprocate once along the side edge of the photovoltaic panel at intervals of set time, and if an obstacle exists between the laser transmitter and the laser receiver in the reciprocating process, the next step is executed;
2) whether the vertical hydraulic cylinder rises to the top end or not, if so, executing the step 5), otherwise, rising the vertical hydraulic cylinder by a set distance;
3) the oblique hydraulic cylinder pushes the laser transmitter and the laser receiver to reciprocate once along the side edge of the photovoltaic panel, if an obstacle exists between the laser transmitter and the laser receiver, the operation returns to step 2), and if not, the next step is executed;
4) keeping the current state of the vertical hydraulic cylinder, driving the inclined hydraulic cylinder to push the laser transmitter and the laser receiver to reciprocate once along the side of the photovoltaic plate after a set time, if an obstacle exists between the laser transmitter and the laser receiver, returning to step 2), and if not, executing the next step;
5) the snow removal function is activated.
9. The control method according to claim 8, characterized in that:
also comprises the following steps
6) Returning the laser transmitter and the laser receiver to the initial positions;
7) after the snow removing function is finished, the oblique hydraulic cylinder pushes the laser emitter and the laser receiver to reciprocate once along the side of the photovoltaic panel, if in the reciprocating process, an obstacle exists between the laser emitter and the laser receiver, then the obstacle returns to 5), and if the snow removing function is continuously started to reach the set number of times, the system is closed and an alarm is given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770244.6A CN109088594B (en) | 2018-07-13 | 2018-07-13 | Snow removal system for photovoltaic photo-thermal device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770244.6A CN109088594B (en) | 2018-07-13 | 2018-07-13 | Snow removal system for photovoltaic photo-thermal device and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109088594A CN109088594A (en) | 2018-12-25 |
| CN109088594B true CN109088594B (en) | 2020-07-10 |
Family
ID=64837815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810770244.6A Active CN109088594B (en) | 2018-07-13 | 2018-07-13 | Snow removal system for photovoltaic photo-thermal device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109088594B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112187165A (en) * | 2020-10-12 | 2021-01-05 | 绍兴利方惠能新能源科技有限公司 | Park is with solar photovoltaic board that has self-cleaning function |
-
2018
- 2018-07-13 CN CN201810770244.6A patent/CN109088594B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109088594A (en) | 2018-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109167565B (en) | Dust removal system for photovoltaic photo-thermal device and control method thereof | |
| CN202779012U (en) | Solar photovoltaic power generation self-cleaning system | |
| CN202797032U (en) | Self-cleaning solar cell module and module self-cleaning device | |
| CN202438498U (en) | Automatic cleaning dust-removal system of photovoltaic assembly | |
| CN206472097U (en) | A kind of solar panel automatic cleaning and heat sink | |
| KR100986706B1 (en) | Efficiency enhancement equipment for solar photovoltaic power facilities | |
| CN109088594B (en) | Snow removal system for photovoltaic photo-thermal device and control method thereof | |
| CN102441541B (en) | Solar panel array surface dust removal system and method | |
| CN210238957U (en) | Energy-conserving roofing of green building | |
| CN201969702U (en) | Washing system for solar photovoltaic panels | |
| CN214133018U (en) | Solar power generation-based dust and snow removing device for mirror surface of tower type heliostat | |
| KR100983783B1 (en) | Efficiency enhancement equipment for solar photovoltaic power facilities | |
| CN211209649U (en) | Wisdom photovoltaic power generation device | |
| CN205160465U (en) | Photovoltaic module heat sink | |
| KR20150087503A (en) | Cooling device by impinging jets in photovoltaic power generation system | |
| CN201950044U (en) | System utilizing high-pressure water flow to automatically dedust solar panel array | |
| CN207112657U (en) | Automatic cleaning solar street lamp | |
| CN101029631A (en) | Solar generator | |
| CN213873259U (en) | Fountain type heat-carrying reflux heat-supplementing device | |
| CN203061482U (en) | Fixed water-jet type cleaning system for solar cell panel | |
| CN104351016A (en) | Self-cleaning and recovery irrigation combined device for photovoltaic modules in shed structure | |
| KR20200020530A (en) | A system for solar energy generation floating on the water with cooling device | |
| CN207446830U (en) | Sculpture automatic flushing device | |
| CN213062183U (en) | Circulating glass daylighting top spray cooling device and system driven by solar energy | |
| CN203583488U (en) | Spraying cooling system for reservoir asphalt concrete face |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200622 Address after: 241000 three mountain industrial park, Wuhu, Anhui Applicant after: WUHU BEST NEW ENERGY DEVELOPMENT Co.,Ltd. Address before: 241000 three mountain industrial park, Wuhu, Anhui Applicant before: ZHENMU AGRICULTURAL EQUIPMENT (ANHUI) Co.,Ltd. |