KR101301176B1 - A equipment cooling and cleaning of photovoltaic power generation system - Google Patents

A equipment cooling and cleaning of photovoltaic power generation system Download PDF

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Publication number
KR101301176B1
KR101301176B1 KR20110019781A KR20110019781A KR101301176B1 KR 101301176 B1 KR101301176 B1 KR 101301176B1 KR 20110019781 A KR20110019781 A KR 20110019781A KR 20110019781 A KR20110019781 A KR 20110019781A KR 101301176 B1 KR101301176 B1 KR 101301176B1
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South Korea
Prior art keywords
cleaning
photovoltaic
power generation
guide rail
solar
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KR20110019781A
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Korean (ko)
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KR20120101771A (en
Inventor
박기주
김도윤
김태환
이충호
정성묵
박명석
Original Assignee
주식회사 케이디파워
박기주
한국남부발전 주식회사
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Priority to KR20110019781A priority Critical patent/KR101301176B1/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The present invention divides the photovoltaic power generation equipment consisting of a plurality of photovoltaic modules into a plurality of sectors and equipped with a cleaning spray device that moves up and down the photovoltaic module for each sector to perform cooling or cleaning efficiency of photovoltaic power generation. The present invention relates to a cooling and cleaning device for a photovoltaic power generation system, which includes a photovoltaic module that includes a plurality of photovoltaic panels and receives electricity to generate electricity, and at a predetermined interval on an upper surface of the photovoltaic module. And a spray nozzle fixing device having a plurality of spray nozzles configured to move up and down and spray water or a cleaner to the solar module to clean or contaminate the solar module. It is configured on both sides of the moving wheel for moving the jet nozzle fixing device up and down, on both sides of the solar module A guide rail configured to guide the moving wheels at regular intervals, a chain configured to rotate while enclosing the guide rail in a longitudinal direction, a drive motor for operating the chain up and down, and the guide rail fixed to the ground It characterized in that it comprises a support member.

Description

Cooling and Cleaning System for Photovoltaic System {A EQUIPMENT COOLING AND CLEANING OF PHOTOVOLTAIC POWER GENERATION SYSTEM}

The present invention relates to a photovoltaic power generation system, and more particularly to an apparatus for cooling and cleaning a photovoltaic power generation system to improve the power generation efficiency of solar light.

Generally, the method of using solar energy is divided into a method using solar heat and a method using sunlight.

The method of using solar heat is a method of heating and generating electricity by using water heated by the sun, and a method of using sunlight is a method of generating electricity by using sunlight, It is called solar power generation.

Among the above-mentioned methods, photovoltaic power generation is a photovoltaic effect in which a photovoltaic panel having n-type doping on a silicon crystal and pn-junction is irradiated with sunlight to generate an electromotive force due to the photovoltaic energy, To generate electricity.

For this purpose, a solar cell for collecting sunlight, a photovoltaic module as an aggregate of solar cells, and a solar array for uniformly arranging solar cells are required.

For example, when light is incident on the solar module from the outside, electrons in the conduction band of the p-type semiconductor are excited to the valence band by the incident light energy. One electron-hole pair (EHP) is formed inside the p-type semiconductor, and electrons in the electron-hole pair generated are transferred to the n-type semiconductor by an electric field existing between the pn junctions. It passes over and supplies current to the outside.

On the other hand, the efficiency of the photovoltaic module used in the photovoltaic power generation system is the most important factor that determines the economical efficiency of the photovoltaic power generation in the range of about 16 to 18% for the mainstream polycrystalline silicon material. In order to continuously improve such power generation efficiency, maintenance and repair through various devices are essential.

However, since solar cells, solar modules, and solar arrays for collecting sunlight are installed outdoors, they are exposed to the external environment and scattered dust, algae secretions, dust and other contaminants are attached, And the power generation efficiency is lowered.

In particular, in winter, snow accumulates on solar cells, photovoltaic modules, and photovoltaic arrays, reducing the amount of condensing as if foreign matter is attached. Furthermore, since the temperature is increased by exposure to the sunlight for a long time, the electromotive force is reduced and the power generation efficiency is lowered.

Therefore, in order to solve such a problem, an efficiency improving device of a photovoltaic power generation facility is recently used. Such an efficiency improving device is a method of cleaning a solar panel with a mechanical driving force such as a brush of a vehicle, and a water hose on the upper part of the solar panel. By connecting the water flowing through the solar panel washing method, and a separate water jet type to wash the solar panel by spraying water at a strong pressure through a separate nozzle.

The method of using the brush has to make a separate brush suitable for maintaining the photovoltaic facility, and when the solar panel is overheated, it does not provide a special way to cool it, and water by gravity through the water hose Flowing method has the disadvantage that it does not have a great effect on dirt removal or snow removal.

Therefore, in recent years, the use of a water jet type to cool and wash the solar panel by spraying water having a water pressure through the nozzle.

Since the efficiency of the apparatus is generally fixed to the spray nozzle portion for spraying water, and the rotation is not adjustable, when the area of the photovoltaic array is large, a large number of nozzles are required, so that the water pressure required for cooling and cleaning is increased. Maintenance requires expensive equipment and running costs.

In addition, when randomly spraying with a fixed type of nozzle, it is difficult to spray on a desired area, resulting in a waste of a large amount of water resources. In addition, shadows are often generated on the photovoltaic array by a pipe for adjusting the spray angle of the nozzle, and thus, a decrease in photovoltaic efficiency is generated or a distance between the photovoltaic arrays is increased, thereby requiring an additional area. Some shadows on photovoltaic modules must be avoided by causing a hot spot effect that can cause the output of series-connected solar cells to drop out of the module.

In particular, in the case of a large-scale photovoltaic array, the number of nozzles for cooling and washing increases in proportion to this, so that limited water resources are injected by spraying water toward the photovoltaic module at an appropriate water pressure without dropping the space spatially. There is a challenge to obtain sufficient cooling and cleaning efficiency while using efficiently.

The present invention is to solve the above problems, divided into a number of sectors of the photovoltaic power generation equipment consisting of a plurality of solar modules and equipped with a cleaning spray device for moving the photovoltaic module for each sector by cooling or cleaning The purpose of the present invention is to provide a cooling and cleaning device for a photovoltaic system that can improve the efficiency of photovoltaic power generation.

The cooling and cleaning device of the solar power generation system according to the present invention for achieving the above object consists of a plurality of solar panels and a solar module for receiving electricity to generate electricity, and the upper surface of the solar module A spray nozzle fixing device having a plurality of spray nozzles configured to have a predetermined interval therebetween and spray water or a cleaner to the solar module while cleaning the contaminated portion by spraying water or a cleaner to the solar module while moving up and down; A moving wheel configured to move the spray nozzle fixing device up and down, configured on both sides of the nozzle fixing device, a guide rail configured to guide the moving wheel, and a guide rail configured at regular intervals on both side surfaces of the solar module, and a length of the guide rail. A chain configured to rotate while being enclosed in a direction, a drive motor for operating the chain up and down, and the guide Comprising: a support member for fixing the one to the drawing, the mobile wheel moves along the guide rails is characterized in that the metal wheel both axes are connected to act as a balance is equipped with two screws.

The cooling and cleaning device of the solar power generation system according to the present invention divides the photovoltaic power generation system composed of a plurality of solar modules into a plurality of sectors and is equipped with a cleaning spray device for moving up and down the photovoltaic module for each sector. By performing cooling or washing | cleaning, the efficiency of solar power generation can be improved.

1 is a perspective view schematically showing a cooling and cleaning device of a solar power system according to the present invention
Figure 2 is a rear perspective view showing a cooling and cleaning device of the solar power system according to the present invention
3 is a perspective view schematically showing the jet nozzle fixing device of FIG.
4 and 5 are perspective views showing a part including the guide rail of FIG.

Hereinafter, with reference to the accompanying drawings will be described in more detail the cooling and cleaning apparatus of the photovoltaic power generation system according to the present invention.

1 is a perspective view schematically showing a cooling and cleaning device for a photovoltaic power generation system according to the present invention, Figure 2 is a rear perspective view showing a cooling and cleaning device for a photovoltaic power generation system according to the present invention.

Cooling and cleaning apparatus of the solar power generation system according to the present invention, as shown in Figure 1 and 2, consisting of a plurality of solar panels, the solar module 110 to generate electricity by receiving sunlight, and the It is configured to have a predetermined interval on the upper surface of the photovoltaic module 110 while spraying water or cleaner to the photovoltaic module 110 while moving up and down to cool the photovoltaic module 110 or to clean the contaminated portion An injection nozzle fixing device (120) having a plurality of injection nozzles, a moving wheel (130) configured on both sides of the injection nozzle fixing device (120) to move the injection nozzle fixing device (120) up and down, and A guide rail 140 configured to have a predetermined interval on both sides of the photovoltaic module 110 to guide the moving wheel 130 and a chain 150 configured to rotate while surrounding the guide rail 140 in a longitudinal direction. ) And the chain (1) It comprises a drive motor 160 for operating 50 up and down, and a support member 170 for fixing the guide rail 140 to the ground.

When the spray nozzle fixing device 120 moves up and down, the spray nozzle fixing device 120 is disposed on the left and right sides of the photovoltaic structure in order to eliminate the movement path or the obstacle such as contact or shadow on the solar module 110. Is installed to the guide rail 140 that can move through the moving wheel 130, the support member 170 that can support the guide rail 140 is installed.

The injection nozzle fixing device 120 is moved up and down by the operation of the drive motor 160, the chain 150 of the guide rail 140 is rotated, the moving wheel in contact with the chain 150 As the 130 moves, the injection nozzle fixing device 120 may be moved up and down.

At this time, by installing a temperature sensor (not shown) that senses the temperature around the photovoltaic module 110 and delivers to the manager when the predetermined temperature is higher than the photovoltaic module 110 by driving the drive motor 160 To cool the surface.

In addition, by installing a light amount sensor (not shown) for detecting the light amount of the solar module 110 to check the power generation efficiency, if the power generation efficiency is lowered at a certain time to deliver to the manager to drive the motor 160 Drives to clean the surface of the solar module 110.

The drive motor 160 extends the shaft 161 so that the vertical movement of the injection nozzle fixing device 120 is made horizontally with the chain 150 of the guide rail 140 opposite to the drive motor 160. Direct connection to increase the precision of the horizontal maintenance and vertical movement to prevent the spray nozzle fixing device 120 is shaken, it is possible to synchronize the movement of both guide rails (140).

3 is a perspective view schematically showing the injection nozzle fixing device of FIG.

As shown in FIG. 3, the spray nozzle fixing device 120 sprays water from the photovoltaic module 110 while moving up and down at regular intervals on the top surface of the photovoltaic module 110 to provide a photovoltaic module 110. Lower the surface temperature of or spray the cleaner containing a cleaner on the surface of the solar module 110 to clean the contaminants.

To this end, a plurality of injection nozzles 121 are formed at regular intervals to inject water or a cleaner on the rear surface of the injection nozzle fixing device 120. In this case, a pipe is connected to the jet nozzle fixing device 120 to supply water or a cleaner to the jet nozzles 121.

The injection nozzle 121 is to wash the debris, dust, and the like accumulated on the photovoltaic module 110, or to cool when the surface temperature of the photovoltaic module 110 rises to a predetermined temperature. do.

In addition, the spray nozzle 121 may spray wind without spraying water or cleaner. For example, the leaves or snow accumulated on the upper surface of the solar module 110 may be washed.

In addition, it may be dried by spraying wind on the upper surface of the solar module 110 that is wet with water after rain.

On the other hand, the wind injected through the injection nozzle 121 is installed a separate air pump (not shown), and operates the air pump to inject the wind.

The cleaning agent sprayed through the spray nozzle 121 uses a vibrator pump (not shown) to adjust the spray strength. By spraying the cleaner on the surface of the photovoltaic module 110 using the vibrator pump, it is possible to effectively remove the contaminants by spraying harder than when the pollution is severe.

4 and 5 are perspective views showing a part including the guide rail of FIG.

As shown in FIG. 4 and FIG. 5, a moving wheel 130 for moving the spray nozzle fixing device 120 up and down is mounted on the guide rail 140. The moving wheel 130 is a chain 150. It is moved by the rotation of.

At this time, both ends of the guide rail 140 is formed with a sprocket 180 having a predetermined interval, the sprocket 180 serves to smoothly rotate the chain 150.

The injection nozzle fixing device 120 is moved up and down has a bogie 122 for fixing the injection nozzle fixing device 120, it can be moved up and down by connecting the bogie 122 and the chain 150. .

The moving wheel 130 moving along the guide rail 140 is equipped with two metal wheels connected to both axes to serve as a bogie, so that it can withstand the entire load of the injection nozzle fixing device 120 sufficiently. It is possible to maintain mobile stability, such as continuous running, and is provided with a bracket for fixing device (not shown) to be able to change the fixed position of the jet nozzle fixing device 120.

The shaft 161 of the drive motor 160 is connected to the link connection point of the opposite guide rail 140 starting from the drive motor 160, and the plurality of thrust bearings 162 in the middle of the solar module mounting structure The long axis of the drive motor 160 is bent or hung in the middle so that the force of the drive motor 160 can be transmitted to the opposite chain 150.

Two chain 150 at each end of the guide rail 140, two driving motor shafts, opposite guide rails so that the injection nozzle fixing bogie (moving wheel) can smoothly move on the guide rail 140. Two sprockets 180 are connected to the connecting shaft, and the chain is configured to move smoothly.

The injection nozzle 121 is installed in the jet nozzle fixing device 120 and divided by the number of injection nozzles 121 into a plurality of units in order to maintain a uniform amount of water or cleaning agent input to each injection nozzle 121. It is mounted on the injection nozzle fixing device 120 in a block of, and the plurality of injection nozzles 121 is fixed to the injection nozzle fixing device (120).

A plurality of independent inlet lines (inlet supply pipes) are installed in each of the injection nozzles 121, and the number of the injection nozzles 121 is a structure which prevents a variation in the discharge of water or a cleaning agent for each part. Is fixed to the jet nozzle fixing device (120).

On the other hand, the cooling and cleaning device of the photovoltaic power generation system according to the present invention is connected to the pipe from the water storage tank, the cleaning liquid storage tank in order to supply water or cleaning liquid to the injection nozzle 121 of each solar module 110, The pipe is composed of a main pipe connected to the water and the cleaning liquid storage tank and a sub pipe supplied to each solar module 110 from the main pipe.

The main supply pipe is two pipes of water and cleaning liquid, and the sub pipe is composed of two strands of sub pipes connected to each solar module 110 in the water and cleaning liquid main pipe, and each of the two solar modules 110 is connected to each other. The subtubes of the strand are connected.

The sub piping is connected to the distributor before being supplied to each solar module 110, the distributor connects a plurality of inlet lines to the plurality of injection nozzles 121. The distributor is also connected to an air compressor line.

In general, water, washing liquid, and air compressor line are connected to the distributor inlet side, and a plurality of injection nozzles 121 pipe lines are connected to the drainage side, and water, washing, and air compressor lines are commonly used.

Water, cleaning liquid and air compressor line are connected to the distributor inlet side in parallel, so that check valve is connected to each pipe to prevent backflow, so that the water, cleaning liquid and air compressor are not reversed with each other. 110) The check valve is connected to the point of the sub piping of the block, so that the backflow is not affected even in the main pipe, thereby minimizing the pipe length and maximizing the use of the pipe.

On the other hand, the present invention is not limited to the above-described embodiment and the accompanying drawings, it is possible that various substitutions, modifications, and changes within the scope without departing from the spirit of the present invention in the prior art It will be apparent to those who have knowledge.

110: solar module 120: jet nozzle fixing device
130: moving wheel 140: guide roller
150: chain 160: drive motor
170: support member

Claims (10)

  1. Solar module that consists of a plurality of solar panels and receives sunlight to produce electricity,
    It is configured to have a predetermined interval on the upper surface of the photovoltaic module and to move up and down while spraying water or cleaner to the photovoltaic module to cool the photovoltaic module or to clean the contaminated parts Nozzle fixing device,
    A moving wheel configured on both sides of the jet nozzle fixing device to move the jet nozzle fixing device up and down;
    Guide rails configured to have a predetermined interval on both sides of the photovoltaic module to guide the moving wheel,
    A chain configured to rotate while surrounding the guide rail in a longitudinal direction,
    A drive motor for operating the chain up and down,
    It comprises a support member for fixing the guide rail to the ground,
    The moving wheel moving along the guide rail is equipped with two metal wheels connected to both axes to serve as a bogie,
    The driving motor is directly connected to the chain of the opposite guide rail to increase the accuracy of horizontal maintenance and vertical movement to extend the shaft on the back of the solar module to prevent the injection nozzle fixing device to shake Cooling and cleaning device for solar power system.
  2. delete
  3. According to claim 1, wherein a plurality of injection nozzles are formed at regular intervals for injecting water or cleaner to the back of the jet nozzle fixing device, and fixed to the injection nozzle to supply water or cleaner to each injection nozzle Cooling and cleaning device for a photovoltaic power generation system, characterized in that the pipe is connected to the device.
  4. According to claim 3, Cooling and cleaning device for a photovoltaic power generation system characterized in that it further comprises a sprocket configured at each end of the guide rail, the drive motor shaft, the guide rail connecting shaft.
  5. delete
  6. The photovoltaic power generation system of claim 1, wherein the shaft is connected to the link connection point of the opposite guide rail starting from the driving motor, and has a plurality of thrust bearings mounted horizontally on the solar module mounting structure in the middle. System cooling and scrubbing.
  7. The method of claim 3, wherein the number of injection nozzles are divided into a plurality of units in order to maintain a uniform amount of water or cleaning agent input to the respective injection nozzles, and installed in the injection nozzle fixing device as a block. Cooling and scrubbing of power generation system.
  8.  According to claim 3, In order to supply water or cleaning liquid to the respective injection nozzles, pipes are connected from the water storage tank and the cleaning liquid storage tank, and the pipes are connected to each solar light in the main pipe and the main pipe connected to the water and the cleaning liquid storage tank. Cooling and cleaning device for a photovoltaic power generation system, characterized in that consisting of sub-pipes supplied to the module.
  9. The method of claim 8, wherein the sub-pipe is connected to the distributor before being supplied to each solar module, the distributor is connected to a plurality of inlet line to a plurality of injection nozzle, characterized in that the air compressor line is connected to the distributor Cooling and cleaning device for solar power system.
  10. The apparatus of claim 3, wherein the cleaning agent sprayed through the spray nozzle uses a vibrator pump to adjust the spray intensity.
KR20110019781A 2011-03-07 2011-03-07 A equipment cooling and cleaning of photovoltaic power generation system KR101301176B1 (en)

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Application Number Priority Date Filing Date Title
KR20110019781A KR101301176B1 (en) 2011-03-07 2011-03-07 A equipment cooling and cleaning of photovoltaic power generation system

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150051804A (en) 2013-11-05 2015-05-13 (주)하이레벤 Washing apparatus for solar photovoltaic module
KR20160003613A (en) 2015-12-22 2016-01-11 (주)하이레벤 Washing apparatus for solar photovoltaic module
CN105680779A (en) * 2016-01-21 2016-06-15 浙江晶科能源有限公司 Omnibearing sunlight tracing photovoltaic support and photovoltaic system
KR20180125082A (en) 2017-05-11 2018-11-22 리셋컴퍼니 주식회사 Preveting system for accumulation of alien substance
KR20190133355A (en) 2018-05-23 2019-12-03 (주)대륜하이테크 Cleaning apparatus for solar cell panels

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CN104027967B (en) * 2013-03-07 2016-04-06 马键 A kind of adopt photo-voltaic power supply intelligent ball collecting, service and cleaning device
KR101367247B1 (en) * 2013-06-18 2014-02-25 주식회사 우원산업 The washing device for solar panel
JP6140889B2 (en) * 2013-11-05 2017-06-07 ハイレベン カンパニー リミテッドHileben Co., Ltd. Solar module cleaning device and distribution assembly
KR101369510B1 (en) * 2013-11-26 2014-03-05 이형열 Dishwasher transfer device for photovoltaic module
CN103904989A (en) * 2014-04-09 2014-07-02 大连理工大学 Chain-transmitting-scrubbing-brush type device for automatically cleaning solar panels
CN103904990B (en) * 2014-04-11 2016-01-27 韦克康 A kind of cleaning device of solar energy photovoltaic panel
CN104009705B (en) * 2014-06-09 2016-03-30 苏州青云能源科技有限公司 Photovoltaic generating system performance data harvester and method
KR101649472B1 (en) * 2015-03-12 2016-08-23 (주)하이레벤 Efficiency enhancement apparatus for solar photovoltaic power facilities with nozzle to generate the two phase flow
CN107040194A (en) * 2017-04-10 2017-08-11 南通欧贝黎新能源电力股份有限公司 A kind of photovoltaic generating system
CN108758513B (en) * 2018-03-30 2020-12-11 山东清华康利城市照明研究设计院有限公司 Intelligent wind-solar hybrid street lamp with detection function and high power generation efficiency
CN111408567A (en) * 2020-04-02 2020-07-14 李勋 Self-sweeping device of solar power station

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KR20070000926U (en) * 2007-07-09 2007-08-23 김경숙 Automatic Cooling and Washing Equipment of The Photovoltaic Module Structure
KR20090062076A (en) * 2007-12-12 2009-06-17 서울전력(주) Cleaning device for solar cell panel
KR20090062117A (en) * 2007-12-12 2009-06-17 (주)서울전업공사 Cleaning device for solar cell panel
KR20100091056A (en) * 2009-02-09 2010-08-18 송원진 Cleaning device of solar panel

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KR20070000926U (en) * 2007-07-09 2007-08-23 김경숙 Automatic Cooling and Washing Equipment of The Photovoltaic Module Structure
KR20090062076A (en) * 2007-12-12 2009-06-17 서울전력(주) Cleaning device for solar cell panel
KR20090062117A (en) * 2007-12-12 2009-06-17 (주)서울전업공사 Cleaning device for solar cell panel
KR20100091056A (en) * 2009-02-09 2010-08-18 송원진 Cleaning device of solar panel

Cited By (5)

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Publication number Priority date Publication date Assignee Title
KR20150051804A (en) 2013-11-05 2015-05-13 (주)하이레벤 Washing apparatus for solar photovoltaic module
KR20160003613A (en) 2015-12-22 2016-01-11 (주)하이레벤 Washing apparatus for solar photovoltaic module
CN105680779A (en) * 2016-01-21 2016-06-15 浙江晶科能源有限公司 Omnibearing sunlight tracing photovoltaic support and photovoltaic system
KR20180125082A (en) 2017-05-11 2018-11-22 리셋컴퍼니 주식회사 Preveting system for accumulation of alien substance
KR20190133355A (en) 2018-05-23 2019-12-03 (주)대륜하이테크 Cleaning apparatus for solar cell panels

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