KR20130075846A - Cleanning and cooling system for solar photovoltaic power generation deivce - Google Patents
Cleanning and cooling system for solar photovoltaic power generation deivce Download PDFInfo
- Publication number
- KR20130075846A KR20130075846A KR1020110144120A KR20110144120A KR20130075846A KR 20130075846 A KR20130075846 A KR 20130075846A KR 1020110144120 A KR1020110144120 A KR 1020110144120A KR 20110144120 A KR20110144120 A KR 20110144120A KR 20130075846 A KR20130075846 A KR 20130075846A
- Authority
- KR
- South Korea
- Prior art keywords
- nozzle
- cooling
- cooling system
- washing
- cleaning
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 82
- 238000010248 power generation Methods 0.000 title claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 43
- 238000005406 washing Methods 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000007921 spray Substances 0.000 claims description 26
- 239000000428 dust Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000746 purification Methods 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 11
- 239000002826 coolant Substances 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 8
- 238000002347 injection Methods 0.000 abstract description 22
- 239000007924 injection Substances 0.000 abstract description 22
- 239000000110 cooling liquid Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 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
- H02S20/00—Supporting structures for PV modules
-
- 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
-
- 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
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
The present invention relates to a washing and cooling system for a photovoltaic device that can simultaneously cool the surface of the photovoltaic module and thus improve the photovoltaic power generation efficiency.
In general, concerns about energy depletion have led to the development of various types of alternative energy sources that can replace fossil fuels, one of which is solar energy. The use of such solar energy can be divided into two types, one of which uses the solar radiation to perform heating and the like, and one that converts the solar energy directly into electricity using solar cells. There is a generator.
The photovoltaic device includes a frame installed on a roof or ground of a building, a solar module installed at an angle to the frame to convert solar energy into electrical energy, and a direct current power generated by the solar module to load an electronic device. It consists of an inverter and the like to convert to the AC power required for.
The development of photovoltaic devices is being promoted in order to develop technologies for increasing the power generation efficiency of photovoltaic modules.
Therefore, a solar generator cleaning and cooling system for cleaning and cooling the surface of the solar module in order to increase the power generation efficiency of the solar module is disclosed in Korean Patent Publication No. 10-0982263.
Conventional photovoltaic washing and cooling system disclosed in Korean Patent Application Publication No. 10-0982263 includes a solar power generator provided with a light collecting plate having a light collecting angle that changes according to a solar position, ambient air temperature and air pollution, temperature of the light collecting plate surface, Sensor unit for detecting the ambient air pollution of the surroundings, the temperature of the water in the water supply pipe, the wind speed and wind direction of the surroundings, the flow pressure of the water supplied to the water supply pipe, and the surface temperature of the light collecting plate to rise above the set temperature compared to the ambient air temperature And a water supply signal to the operation unit when the external air pollution around the light collecting plate rises above a predetermined reference value, and transmits a water drainage signal to the operation unit when the outside temperature becomes lower than a temperature for freezing water in the water supply pipe. When the wind around the light collecting plate is higher than the set wind speed, or the reverse direction of water sprayed onto the light collecting plate surface When the wind blows, the control unit for transmitting the water supply cutoff signal to the operation unit, and when the water supply signal is transmitted from the control unit, the water stored in the water storage tank is supplied to the water injection unit, the water drainage signal is transmitted from the control unit If so, the water in the water supply pipe is discharged to the outside, and when the water supply block signal is transmitted, it is composed of an operation unit for blocking the water supply.
However, the conventional solar generator cleaning and cooling system as described above requires a large number of spray nozzles in order to spray water on the entire surface of the light collecting plate when the area of the light collecting plate is wide because the water injection unit for spraying water to the light collecting plate is fixed. The manufacturing cost is increased, and the spray angle of the spray nozzle is fixed, so that water is not evenly sprayed on the surface of the light collecting plate.
In addition, the conventional solar generator cleaning and cooling system has a problem that the cleaning efficiency is lowered when cleaning the light collecting plate because it sprays water at the same pressure in the spray nozzle when washing and cooling the light collecting plate.
Accordingly, an object of the present invention is to provide a cleaning and cooling system for a photovoltaic device that can cool the photovoltaic module at the same time as cleaning the surface of the photovoltaic module to improve power generation efficiency.
Another object of the present invention is to provide a washing and cooling system for a photovoltaic device that can cool the surface of a wide photovoltaic module and cool it by adjusting the spray angle of the nozzle unit for spraying the washing liquid and the cooling liquid.
Another object of the present invention is to wash the photovoltaic device that can improve the washing efficiency and cooling efficiency while performing the washing and cooling at the same time by different injection pressure when washing and cooling the solar module, respectively. And to provide a cooling system.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. .
In order to achieve the above object, the washing and cooling system of the photovoltaic device of the present invention is provided with a rail unit which is installed at the highest position of the frame inclined so as to mount the photovoltaic module, and is movable to the rail unit A bogie, a nozzle unit installed on the bogie to wash and cool the photovoltaic module by injecting a washing solution and a cooling liquid onto the photovoltaic module, and an injection angle control unit installed on one side of the nozzle unit to adjust the injection angle of the nozzle unit. It includes a unit, the injection angle adjusting unit is one end of the operation rod is connected to the nozzle unit, a support shaft for rotatably supporting the center of the operation rod, the hinge rod is connected to the other end of the operation rod A lifting shaft for reciprocating the other end of the shaft in a vertical direction, and a second driving device for reciprocating the lifting shaft in a vertical direction. It characterized in that it comprises.
The trolley of the present invention includes a trolley on which wheels in contact with the rail are mounted, and a first driving device for driving the trolley so that the trolley moves along the rail, wherein the first driving device is fixed to the trolley. And a drive motor, a first sprocket fixed to the drive shaft of the first drive motor, a second sprocket fixed to the rotating shaft to which the wheel is connected, and a chain connected between the first sprocket and the second sprocket. do.
The nozzle unit of the present invention has a nozzle body, a cooling nozzle installed in the nozzle body to spray a cooling liquid when cooling the photovoltaic module, and installed in the nozzle body to spray a cleaning liquid when the photovoltaic module is washed and the cooling It characterized in that it comprises a cleaning nozzle having a large injection pressure compared to the injection pressure of the nozzle.
The second drive device of the present invention is a second drive motor is fixed to the support plate installed on the upper surface of the bogie, the cam member is fixed to the drive shaft of the second drive motor is rotated together and the lower end of the lifting shaft is in contact with the outer peripheral surface and And a spring case installed to pass through the lifting shaft and mounted to the support plate, and a spring installed inside the spring case to provide elastic force to the lifting shaft to maintain contact between the lifting shaft and the cam member. It features.
The washing and cooling system of the photovoltaic device of the present invention further includes a height adjusting unit installed between the support plate and the bogie to raise and lower the support plate to adjust the height of the nozzle unit, and the height adjustment unit is disposed perpendicular to the bogie. And a screw bar which is rotatably supported on the trolley, a screw rod fixed to the bottom of the support plate and screwed with the screw bar, and fixed to the bottom of the support plate and installed in a linear movement to the bogie so that the support plate is vertically elevated. And a third driving device for rotating and driving the screw bar.
As described above, the cleaning and cooling system of the photovoltaic device of the present invention when the dust accumulated on the surface of the photovoltaic module more than the set value sprays the cleaning solution on the surface of the photovoltaic module to clean the photovoltaic module, When the temperature is higher than the set temperature it is possible to improve the power generation efficiency by spraying the coolant to cool the solar module.
In addition, the washing and cooling system of the photovoltaic device of the present invention can evenly wash and cool the surface of a wide photovoltaic module by adjusting the spray angle of the nozzle unit for spraying the washing liquid and the cooling liquid, thereby washing performance and cooling performance. Can improve.
In addition, the washing and cooling system of the photovoltaic device of the present invention to improve the washing efficiency and cooling efficiency while performing the washing and cooling at the same time by different injection pressure when washing and cooling the solar module. There are advantages to it.
1 is a perspective view of a photovoltaic device according to an embodiment of the present invention.
2 is a side view of a photovoltaic device according to an embodiment of the present invention.
3 is a cross-sectional view of one side of the cleaning and cooling system according to an embodiment of the present invention.
Figure 4 is a cross-sectional view of the other side of the cleaning and cooling system according to an embodiment of the present invention.
5 is a cross-sectional view of a cleaning and cooling system according to another embodiment of the present invention.
6 is a block diagram showing a purification apparatus according to an embodiment of the present invention.
Figure 7 is a block diagram showing a control unit of the washing and cooling system according to an embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.
1 is a perspective view of a photovoltaic device according to an embodiment of the present invention, Figure 2 is a side view of the photovoltaic device according to an embodiment of the present invention, Figure 3 is a washing and according to an embodiment of the present invention 4 is a cross-sectional view of a cooling system, and FIG. 4 is a side view of a cleaning and cooling system according to one embodiment of the present invention.
1 to 4, the solar cell apparatus according to an embodiment is installed on the roof or ground of the building, the
On the lower surface of the
Washing and
The
The
The
In this case, when the
The
When cleaning the
Therefore, the
The coolant and the wash liquid may also use the same liquid, the wash liquid may include a substance capable of improving the washing performance, and the coolant may use different liquids containing the substances required for cooling.
The
The lower end of the
The
The second drive device includes a
As described above, when the operation of the
In addition, since the
The injection angle adjusting unit 300 has an
A
The third drive device is a cam which is fixed to the drive shaft of the
Here, the lifting
Here, the lower end of the lifting
As described above, referring to the action of the injection angle adjusting unit, when the
5 is a cross-sectional view of a washing and cooling system according to another embodiment of the present invention, which is the same as the washing and cooling system described in the above-described embodiment, except that the first and the left and right sides of the lifting
According to another embodiment of the washing and cooling system, the lifting
6 is a block diagram showing a purification system according to an embodiment of the present invention.
In this embodiment, a purification system is used that collects, purifies and reuses water once used for washing and cooling.
The purification system includes a
Purification tank is installed in the
As such, the washing and cooling system according to the present embodiment can save water because the used water is recycled, and keep the surrounding environment of the washing and cooling system clean.
The
As such, the cleaning and cooling system according to the embodiment is configured to automatically detect the dust when accumulated on the surface of the
As shown in FIG. 7, the control unit includes a
The
Next, the operation of the washing and cooling system of the solar cell apparatus according to the present embodiment will be described in detail.
First, when dust is accumulated on the surface of the
In the following, the operation of the cleaning system will be described in detail.
The
At this time, the height adjusting unit is operated to raise and lower the
Specifically, when the controller operates the second driving motor, the screw bar is rotated, and the screw bar coupled with the screw bar is raised to raise the support plate on which the
When the controller operates the third driving motor, the cleaning nozzle is reciprocated in the set range and sprays the cleaning solution sequentially from the near side to the far side in the width direction of the solar module.
Then, when the controller operates the first drive motor, while the bogie moves linearly, one washing nozzle is linearly moved to spray the cleaning solution sequentially in the longitudinal direction of the solar module.
When the temperature of the
Looking at the operation of the cooling system, the
And, as with the washing nozzle, the cooling nozzle is moved in the longitudinal direction of the solar module as the trolley moves linearly, the height adjustment unit is operated to adjust the height of the cooling nozzle, the spray angle adjustment unit is operated to raise the height of the cooling nozzle Adjust
As described above, the washing and cooling system of the solar cell apparatus according to the present embodiment sequentially sprays the washing liquid and the cooling liquid in the longitudinal direction of the solar module while the washing nozzle and the cooling nozzle are linearly reciprocated in the longitudinal direction of the solar module. , The washing nozzle and cooling nozzle are rotated in the vertical direction to spray the cleaning liquid and the cooling liquid in the width direction of the photovoltaic module, and the washing liquid and the cooling nozzle are raised in the vertical direction in order to wash the liquid near and far. Cooling liquid may be sprayed to spray the washing liquid and the cooling liquid evenly on the entire surface of the solar module.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.
10: support frame 12: support rod
20: solar module 30: cleaning / cooling system
40: rail unit 44: housing
46: rail 50: bogie
52, 54: Wheel 56: axis of rotation
60: nozzle unit 62: cleaning nozzle
64: cooling nozzle 66: nozzle body
70: injection angle adjustment unit 72: operating rod
76: support shaft 80: height adjustment unit
82: first cylinder 84: second cylinder
86: first piston 88: second piston
90: first drive unit 92: first drive motor
94: first sprocket 96: second sprocket
98: chain 102: lifting shaft
110: second drive device 112: second drive motor
120: driven pulley 122: cam member
124: roller 126: push rod
128: drive pulley 180: hydraulic pump
200: controller 210: dust detection sensor
220: temperature sensor
Claims (9)
A trolley mounted to the rail unit to be movable;
A nozzle unit installed on the trolley to clean and cool the solar module by spraying a washing solution and a cooling solution on the solar module; And
Is installed on one side of the nozzle unit comprises a spraying angle adjusting unit for adjusting the spraying angle of the nozzle unit,
The spraying angle adjusting unit has an operating rod having one end connected to the nozzle unit, a support shaft rotatably supporting the center of the operating rod, and a hinge connected to the other end of the operating rod to vertically move the other end of the operating rod. And a second driving device for reciprocating the lifting shaft in the vertical direction, and a lifting shaft for reciprocating the air shaft.
The bogie includes a bogie on which wheels contacting the rail are mounted, and a first driving device for driving the bogie so that the bogie moves along the rail,
The first driving device includes a first driving motor fixed to the trolley, a first sprocket fixed to a drive shaft of the first driving motor, a second sprocket fixed to a rotating shaft to which the wheel is connected, and a first sprocket and a first driving motor. Cleaning and cooling system for photovoltaic devices with chains connected between two sprockets.
The nozzle unit comprises a nozzle body,
A cooling nozzle installed in the nozzle body to spray a coolant when cooling the solar module;
And a cleaning nozzle installed in the nozzle body to spray the cleaning liquid when the solar module is washed and having a large spray pressure compared to the spray pressure of the cooling nozzle.
The second driving device may include a second driving motor fixed to a support plate installed on the upper surface of the trolley, a cam member fixed to a driving shaft of the second driving motor, and having a lower end of the lifting shaft contacting an outer circumferential surface thereof; A photovoltaic power generation including a spring case installed to pass through the lifting shaft and mounted to the support plate, and a spring installed inside the spring case to provide an elastic force to the lifting shaft to maintain contact between the lifting shaft and the cam member. Cleaning and cooling system of the device.
And a height adjusting unit installed between the support plate and the bogie to adjust the height of the nozzle unit by elevating the support plate.
The height adjusting unit is a screw bar disposed perpendicular to the balance and rotatably supported on the balance,
A screw rod fixed to the lower surface of the support plate and screwed with a screw bar;
A support rod fixed to the bottom surface of the support plate and installed to be linearly movable vertically to the bogie to support the support plate to be vertically elevated;
Washing and cooling system of a photovoltaic device comprising a third drive device for rotating the screw bar.
The third driving device includes a third driving motor fixed to the bogie, a second gear fixed to an outer circumferential surface of the screw bar, and a first gear fixed to the drive shaft of the third driving motor and geared to the second gear. Cleaning and cooling system of solar power plant.
The washing and cooling system further includes a control unit that automatically detects when dust accumulates on the surface of the photovoltaic module and automatically performs a washing mode, and automatically performs a cooling mode when the temperature of the photovoltaic module becomes higher than a set temperature. and,
The control unit may include a dust sensor for detecting dust accumulated on a surface of the solar module, a temperature sensor for measuring a temperature of the solar module, and a signal applied from the dust sensor and the temperature sensor. Cleaning and cooling system for photovoltaic devices comprising a controller for operating the cleaning and cooling system.
The washing and cooling system further includes a purification system for collecting and purifying water once used for cooling and washing, and then reusing it.
The purification system is installed on the side of the lowest height of the frame is sprayed on the surface of the photovoltaic module and the collection tank to collect the water to complete the cleaning or cooling action, the collection tank and the discharge pipe is connected to the collection tank Washing and cooling system of a photovoltaic device comprising a plurality of purification tanks for purifying the water collected in step by step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110144120A KR101330358B1 (en) | 2011-12-28 | 2011-12-28 | Cleanning and cooling system for solar photovoltaic power generation deivce |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110144120A KR101330358B1 (en) | 2011-12-28 | 2011-12-28 | Cleanning and cooling system for solar photovoltaic power generation deivce |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20130075846A true KR20130075846A (en) | 2013-07-08 |
| KR101330358B1 KR101330358B1 (en) | 2013-11-15 |
Family
ID=48989559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020110144120A KR101330358B1 (en) | 2011-12-28 | 2011-12-28 | Cleanning and cooling system for solar photovoltaic power generation deivce |
Country Status (1)
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| KR (1) | KR101330358B1 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852676A (en) * | 2015-06-15 | 2015-08-19 | 国网山东龙口市供电公司 | Device for automatically washing photovoltaic power generation board |
| CN108988771A (en) * | 2018-06-08 | 2018-12-11 | 谭令华 | A kind of solar panel cleaning equipment |
| KR20190029071A (en) * | 2017-09-11 | 2019-03-20 | 주식회사 에스알 | Solar Panel Cooling System |
| KR20190064214A (en) * | 2017-11-30 | 2019-06-10 | 썬웨이 주식회사 | Cooling apparatus for solar panel using fine fog of spray nozzle and cooling method for solar panel |
| KR101988345B1 (en) * | 2019-01-11 | 2019-06-12 | 김길수 | Fabricated solar sharing exterior module and structure with photovoltaic power generation |
| KR20190090128A (en) * | 2018-01-24 | 2019-08-01 | 주식회사 케이에프에너지 | Solar energy system utilizing rainwater |
| KR102135584B1 (en) * | 2020-01-09 | 2020-07-20 | (주)이씨티 | Cooling water supply apparatus for the generationg efficiency improvement of solar energy generation apparatus |
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| KR102167473B1 (en) * | 2020-07-09 | 2020-10-19 | 이에스솔라 주식회사 | Cleaning device of solar panel |
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2011
- 2011-12-28 KR KR1020110144120A patent/KR101330358B1/en not_active IP Right Cessation
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