Cleaning, cooling, and snow-removing system for solar power generation equipment

Abstract

The present invention relates to a cleaning, cooling, and snow-removing system for solar power generation equipment, the system comprising: a storage tank for storing a cleaning liquid or snow-removing liquid; a water treatment device that is disposed around or inside the storage tank and purifies the liquids; a pipe installed in a buried or exposed configuration; a pump that conveys the cleaning liquid or snow-removing liquid, discharged from the storage tank, through the pipe; and a plurality of spray nozzles that are arranged at set intervals around the plurality of solar panels and connected to the pipe, and that spray the cleaning liquid or snow-removing liquid onto the surfaces of the solar panels. The water treatment device includes: a box-shaped or mesh-like supporting body that has an open top surface and a plurality of through-holes formed in the bottom surface and the peripheral surface; a gravel filtering unit which has, on a surface disposed inside the supporting body, a plurality of porous pieces of gravel coated with a photocatalytic material; and an LED mesh which is disposed folded in a zigzag shape inside the gravel filtering unit, and in which a plurality of LED elements that can irradiate the porous pieces of gravel with visible light or ultraviolet light and thereby activate the photocatalytic material are installed at set intervals.

Description

Washing, cooling and snow removal systems for solar power plants

[0001] The present invention relates to a washing, cooling and snow removal system for a solar power generation facility, and more particularly, to a washing, cooling and snow removal system for a solar power generation facility having a structure capable of spraying a cleaning solution or snow removal solution onto the surface of a solar panel after purifying it.

[0002] In general, closed water bodies such as rivers, ponds, lakes, dams, and reservoirs, where water flow is slow and stagnant, have a continuous inflow of surface sewage, domestic wastewater, factory and agricultural and livestock wastewater, which increases the concentration of pollutants in the water.

[0003] Nutrients, including nitrogen compounds and phosphates among pollutants, promote the growth and proliferation of microorganisms that decompose organic matter, thus causing eutrophication in freshwater.

[0004] Eutrophication refers to the phenomenon of excessive algal blooms in freshwater caused by the decomposition of organic matter by microorganisms, leading to increased levels of nutrients such as nitrogen and phosphorus. This eutrophication causes serious damage to the lake ecosystem, including reduced freshwater turbidity, foul odors from decaying waste, and, in severe cases, mass fish deaths. Furthermore, in enclosed waters with little water flow, oxygen is depleted in the lower layers, exacerbating water pollution from the bottom.

[0005] Therefore, in closed waters, it is important to maintain a balance so that the amount of nutrients such as nitrogen and phosphorus contained in the aquatic ecosystem does not exceed its self-purification capacity, and it is also very important to increase the dissolved oxygen in the water as much as possible so that the purification process of sinking organic matter and heavy metals can be carried out smoothly.

[0006] However, despite the increase in sewage treatment facilities on the upstream side, many dams, reservoirs, and lakes in the country are still experiencing a deterioration in water quality due to the inflow of large amounts of pollutants and the formation of dense layers over long periods of fresh water.

[0007] Among the major conventional water quality improvement methods, direct purification methods using physical methods include coagulation and sedimentation, direct sedimentation, filtration, aeration, circulation, water purification, and phosphorus recovery technology, while biological methods include direct oxidation, vegetation purification, microbial preparations, and fixation by enzymes. However, as previously discussed, they have limitations in purifying lakes due to short-term purification and local side effects.

[0008] Advances in science and technology have led to the mass production and use of a wide variety of chemicals, raising environmental pollution caused by synthetic chemicals as a social problem. Water pollution caused by non-biodegradable substances, which are difficult to treat using conventional methods, is particularly serious. The problem with hazardous non-biodegradable pollutants is that they are difficult to treat using conventional physical or biological methods alone.

[0009] In addition to the environmental pollution problem of closed water bodies where water flow is slow and stagnant, water pollution caused by early rainfall is also causing serious environmental problems.

[0010] In areas paved with concrete or asphalt, when it rains, the infiltration and retention functions of rainwater are reduced, and highly polluted substances from the initial rainfall flow into nearby sewers or rivers, adversely affecting the water system.

[0011] Pollution that occurs through unspecified emission routes, such as roads, farmland, and construction sites, is called nonpoint pollution. Fine tire dust accumulated on roads, nitrogen oxides (NOx), which are the main culprit of fine dust, pesticide components remaining in farmland, and dust generated at construction sites are all nonpoint pollutants. These are the main cause of river pollution when they are washed away with rainwater when it rains. The reason why these nonpoint pollutants are a problem is that pollutants generated in unspecified places flow directly into rivers when it rains without any special filtration, so they quickly contaminate water quality. Water pollution is much more serious than other types of pollution because it does not simply make water turbid; it can cause mass fish deaths or destroy habitats for plants and animals, disrupting the ecosystem.

[0012] Recently, interest in non-point source pollution reduction devices such as infiltration facilities, retention facilities, and filtration facilities has been increasing to treat non-point source pollution caused by early rainfall.

[0013] Although infiltration facilities and retention facilities, which are called natural non-point source pollution reduction technologies, are said to have good installation effects, they have the disadvantage of taking up a lot of land. Therefore, filtration facilities called filtration-type non-point source pollution treatment facilities are often installed along with natural non-point source pollution reduction facilities. For example, Korean Patent Publication No. 10-1311903 discloses a non-point source pollution filtration treatment device characterized in that a plurality of fiber unit filters are arranged adjacent to each other and continuously inside a debris collection pipe, and polluted water flows through the debris collection pipe, filtering out pollutants and passing through the drain hole of the debris collection pipe to be discharged outside the sedimentation tank.

[0014] Filtration-type non-point source pollution treatment facilities have the advantage of requiring less land area and faster treatment speed than natural types, but have the disadvantage of requiring maintenance such as regular cleaning and replacement of filter media.

[0015] In addition, existing filters only have the function of filtering out pollutant particles, so they have a weakness in that they cannot decompose harmful substances such as nitrogen oxides (NOx) and sulfur oxides (SOx), which are the main culprits of fine dust, and instead pass them through.

[0016] Rainwater or river water collected in the aforementioned storage facilities can be used as a cleaning liquid for solar panels. For example, Korean Patent No. 10-1213146 discloses a solar panel cleaning and remote control system that cleans and remotely controls solar power modules to improve their power generation efficiency.

[0017] However, conventional solar power generation cleaning systems have vulnerabilities in that they cannot treat organic contaminants or various foreign substances remaining in the cleaning liquid and instead spray them directly onto the surface of the solar panel (power generation module) through the spray nozzle, which can cause the spray nozzle to become clogged, cause stains on the surface of the solar panel, or cause physical and chemical damage to the surface.

[0018] Additionally, there is concern that the cleaning liquid may contain residual harmful substances such as nitrogen oxides (NOx) and sulfur oxides (SOx), as well as bacteria such as E. coli, which may cause secondary pollution such as water or soil pollution after being sprayed on solar panels.

[0019] The present invention was created in consideration of the above problems, and its purpose is to provide a washing, cooling and snow removal system for a solar power generation facility that can spray water with cleaner and enhanced cleaning power onto the surface of a solar panel by increasing the amount of dissolved oxygen in a washing liquid or snow removal liquid.

[0020] Another object of the present invention is to provide a washing, cooling and snow removal system for a solar power generation facility that can improve the air quality in an area where solar panels are installed and does not cause secondary pollution such as water pollution or soil pollution.

[0021] In order to achieve the above object, the present invention provides a washing, cooling and snow removal system for a solar power generation facility installed in a solar power generation facility having a plurality of solar panels, comprising: a storage tank for storing washing liquid or snow removal liquid; a water treatment device disposed around the storage tank or inside the storage tank to purify the liquid; a pipe installed in an embedded or external type; a pump for transporting the washing liquid or snow removal liquid discharged from the storage tank through the pipe; and a plurality of spray nozzles disposed at a set interval around the plurality of solar panels and connected to the pipe to spray the washing liquid or snow removal liquid onto the surfaces of the solar panels; wherein the water treatment device comprises: a box-shaped or mesh-shaped support body having an open upper surface and a plurality of perforations formed on a lower surface and a peripheral surface; a gravel filter having a plurality of porous gravel having a surface coated with a photocatalytic material disposed inside the support body; And the present invention provides a washing, cooling and snow removal system for a solar power generation facility, characterized in that it includes an LED net, which is arranged in a zigzag shape within the gravel filter and has a plurality of LED elements installed at set intervals, which can activate the photocatalytic material by irradiating ultraviolet or visible light onto the porous gravel.

[0022] The above porous gravel may be a porous scoria volcanic eruption containing SiO2, Al2O3 and Fe2O3 components.

[0023] The above photocatalytic material may include a TiO2 component.

[0024] The method further includes an auxiliary tank disposed at the front end of the storage tank, communicating with the storage tank, and having a smaller storage capacity than the storage tank; and the water treatment device may be disposed within the auxiliary tank.

[0025] The present invention may include a mobile phone or central control device that performs communication with the control unit to remotely control the pump.

[0026] It may include a detection unit that detects the injection state and standby state of the above injection nozzle.

[0027] It may further include a solar power supply for supplying power to at least the above pump.

[0028] The washing, cooling and snow removal system of a solar power generation facility according to the present invention has the following effects.

[0029] First, purification can be achieved within a water treatment facility linked to a storage tank, where porous gravel, such as scoria volcanic debris (volcanic cones), submerged in liquid can naturally decompose and kill bacteria, viruses, and other microorganisms thanks to the high surface area and catalytic action of ceramic components. Therefore, the purified liquid, with its simple equipment and low cost, can be used for washing, cooling, and de-icing solar panels.

[0030] Second, it can prevent air, water, and soil pollution around solar power plants caused by washing water used to clean solar panels.

[0031] Third, the scoria volcanic material that constitutes the gravel filter is light in weight, hard enough not to be easily destroyed, and has a sufficiently large specific surface area compared to other minerals, so it can adsorb fine pollutants with high performance.

[0032] Fourth, if a photocatalytic material such as TiO2 is coated on the surface of porous gravel, various bacteria and viruses remaining in rainwater including initial rainfall or river water flowing in from non-point sources of pollution can be sterilized, and harmful substances such as nitrogen oxides (NOx), sulfur oxides (SOx), and volatile organic compounds (VOCs), which are the main causes of fine dust, can be decomposed, resulting in cleaner water that can be used for washing, cooling, and snow removal of solar power generation facilities.

[0033] Fifth, simply placing a gravel filter in a storage tank storing rainwater, tap water, groundwater, or river water will not only filter the water contained in the tank, but also sterilize and decompose harmful compounds, allowing for the construction of a water treatment facility that is low-cost and environmentally friendly.

[0034] Sixth, the water treatment device can be installed in a relatively small auxiliary tank connected to the storage tank to ensure sufficient water treatment capacity.

[0035] Seventh, a receiving portion capable of receiving fine dust and stone powder generated by contact or friction between porous gravel in the gravel filter section can be provided to prevent clogging of pipes or nozzles in advance.

[0036] FIG. 1 is a configuration diagram of a washing, cooling and snow removal system of a solar power plant equipped with a gravel filter according to a preferred embodiment of the present invention.

[0037] Figure 2 is a cross-sectional view showing a configuration in which a water treatment device is placed within an auxiliary tank in Figure 1.

[0038] Figure 3 is a cross-sectional view showing in detail the configuration of the water treatment in Figure 2.

[0039] Figure 4 is a perspective view schematically illustrating the configuration before and after a catalyst coating layer is formed on the porous gravel in Figure 3.

[0040] Fig. 5 is a cross-sectional view showing a modified example of Fig. 3.

[0041] Fig. 6 is a perspective view showing the configuration of the LED mesh in Fig. 5.

[0042] FIG. 1 is a schematic diagram illustrating the configuration of a washing, cooling and snow removal system of a solar power generation facility according to a preferred embodiment of the present invention.

[0043] Referring to FIG. 1, a washing, cooling and snow removal system for a solar power generation facility according to a preferred embodiment of the present invention includes a storage tank (100) in which a liquid used as a washing liquid or a snow removal liquid is stored, a water treatment device (201) for purifying the liquid, a pump (104) for pumping the liquid discharged from the storage tank (100), a control unit (106) for controlling the operation of the pump (104), a plurality of spray nozzles (120) arranged around solar panels of the solar power generation facility for spraying the liquid onto the surface of the solar panels (1), a pipe (111) for supplying the liquid transported by the pump (104) to the spray nozzles (120), a communication card (110) capable of transmitting and receiving a control signal for controlling the spraying of the liquid, and a valve box (108) having an electric valve (109) connected to the communication card (110) built therein.

[0044] The storage tank (100) has an internal space capable of accommodating liquid (water) used as a cleaning solution or de-icing solution. Liquids stored in the storage tank (100) may include rainwater secured through rainwater retention tanks in subway stations, river water procured from rivers connected to various non-point pollution sources, and tap water used for household, industrial, or agricultural purposes.

[0045] The upper part of the storage tank (100) is provided with an inlet for injecting liquid and a cover, and the lower part is provided with a discharge part for discharging the stored liquid to the outside. The present invention can be operated for the purpose of cleaning and cooling the surface of a solar panel (1) using recycled water such as groundwater or rainwater in the summer, and for the purpose of cleaning and removing snow from the surface of a solar panel (1) using a liquid containing an eco-friendly de-icing agent in the winter.

[0046] When a snow removal fluid is injected into the storage tank (100), a vertically arranged stirrer (not shown) may be provided at the inner center of the storage tank (100). The stirrer has a structure in which a stirring blade is installed below a motor fixed to the upper portion of the storage tank (100). The stirrer slowly rotates the stirring blade to stir the fluid stored in the storage tank (100), thereby preventing the snow removal fluid from settling in the winter or preventing the fluid inside the storage tank (100) from freezing. The installation structure of the stirrer is disclosed in more detail in the registered patent publication No. 10-2073520, which the applicant of the present invention previously applied for and was granted a patent for.

[0047] The above-mentioned deicing solution must contain a melting agent or a melting aid, a steel corrosion inhibitor, and a freezing point depressant. Among the melting agent compounds, acetate or formic acid salts may be added considering the environmental friendliness and biodegradability of the material, which is harmless to solar panels and the ecosystem. Preferably, food additives such as citric acid, sodium citrate, gluconic acid, sodium gluconate, and potassium gluconate may be added as steel corrosion inhibitors. For example, the composition may be water:glycerin = 60%:40% by weight or water:propylene glycol = about 65%: about 35% by weight. More preferably, the deicing solution may contain 2 to 10 wt% potassium formate, 2 to 10 wt% potassium acetate, 0.5 to 2 wt% urea, 3 to 15 wt% propylene glycol, 0.01 to 0.02 wt% potassium hydroxide, 0.2 to 0.5 wt% sodium metasilicate, and 0.15 to 2.0 wt% tripotassium phosphate. In addition, the deicing solution may contain various known environmentally friendly deicing agents.

[0048] The water treatment device (201) may be arranged around the storage tank (100) to perform the function of purifying the fluid to be introduced into the storage tank (100) in advance. Preferably, the water treatment device (201) may be arranged at the front end of the storage tank (100) and may be arranged in an auxiliary tank (200) that is in communication with the storage tank (100). Alternatively, the water treatment device (201) may be arranged inside the storage tank (100) to purify the liquid.

[0049] The auxiliary tank (200) is a small storage container with a significantly smaller storage capacity than the storage tank (100), and can accommodate an amount of water corresponding to the contaminant treatment capacity of the water treatment device (201). The auxiliary tank (200) and the storage tank (100) can be selectively connected by a treated water discharge valve (203).

[0050] As detailed in Fig. 2, the water treatment device (201) is arranged in the internal space of the auxiliary tank (200). When the gravel filter (202) is set in the water treatment device (201) and the treated water discharge valve (203) is closed, and raw water, such as tap water or rainwater storage tank liquid, is supplied through the inlet pipe and stored in the auxiliary tank (200), water purification treatment proceeds naturally by the gravel filter (202) arranged to be submerged in the water to be treated in the auxiliary tank (200). For example, after the water treatment is purified for several to several tens of hours, the purified treated water can be moved to the storage tank (100) and stored by opening the treated water discharge valve (203). For this purpose, a predetermined pump may be interposed in the pipe between the auxiliary tank (200) and the storage tank (100). By repeating this process, the purified water collected in the storage tank (100) can be sprayed on the surface of the solar panel (1) as a washing, cooling, and snow removal liquid.

[0051] As shown in more detail in FIG. 3, the water treatment device (201) includes a support (201a) of a predetermined shape placed in the internal space of the auxiliary tank (200), and a gravel filter (202) which is an aggregate of a plurality of porous gravels (202a) placed on the support (201a).

[0052] The support (201a) may be composed of a mesh net capable of storing a gravel filter (202), or a stainless steel box or synthetic resin box with an open upper surface and a plurality of perforations formed on the lower surface and the peripheral surface. Alternatively, the support (201a) may simply be composed of a stainless steel plate with a plurality of perforations formed therein.

[0053] Preferably, the porous gravel (202a) may be a porous scoria volcanic product, a 'scoria cluster', containing silicon oxide (SiO2), aluminum oxide (Al2O3), and iron oxide (Fe2O3). The scoria volcanic product is formed when magma is released into the atmosphere during volcanic activity, allowing the volatile components inside to escape, creating many pores, and is derived from basic or neutral magma. The scoria volcanic product is light in weight, hard enough not to be easily destroyed, and has a surface area of ​​9.9 to 177.6 m2 / g, so it has a surface structure sufficient to adsorb fine pollutants.

[0054] In order to further promote the decomposition reaction of pollutants in the porous gravel (202a), as shown in Fig. 4, a catalyst coating layer (207) may be provided on the surface of each porous gravel (202a), which may preferably be formed by a photocatalytic composition mainly composed of titanium dioxide (TiO2). In addition, the catalyst coating layer (207) may further include an additive, such as phosphoric acid (H3PO4), so that the catalytic reaction of the catalyst coating layer (207) can occur well not only in an ultraviolet ray environment but also in a visible light environment, and further, even in a dark environment inside the storage tank (100) without a separate light source.

[0055] The support (206) is arranged at the bottom of the support (201a) to support the support (201a) so that it is stably fixed without floating in the water. The support (206) includes a first surface corresponding to the support (201a) and a second surface formed with a through hole (206a) located on both sides of the first surface and through which treated water can freely pass. The first surface, which is a portion without a through hole (206a), serves to prevent fine stone particles or dust generated in the gravel filter (202) and discharged through the through hole (201b) on the lower surface of the support (201a) from spreading into the water but stagnating on the first surface. As shown in Fig. 2, a protruding guide jaw may be provided on the upper surface of the first surface so as to hold the support (201a). Alternatively, the upper surface of the first surface may have a groove formed corresponding to the bottom surface of the support (201a), and the lower end of the support (201a) may be fitted into the groove.

[0056] In the gravel filter unit (202), an LED net (210) having a plurality of LED elements (210b) installed at set intervals on a wire array (210a) arranged in a mesh shape as shown in Fig. 6 can be arranged. The LED net (210) is connected to a power supply unit (208) arranged on the outside of the support (201a) via a power line (209).

[0057] As shown in Fig. 5, the LED net (210) is folded in a zigzag shape inside the gravel filter (202), and porous gravel (202a) is arranged between each fold, so that the porous gravel (202a) located inside the gravel filter (202) can be evenly irradiated with ultraviolet or visible light to further promote the activation reaction of the catalyst coating layer (207). In this case, the catalyst coating layer (207) is configured to include a photocatalytic composition.

[0058] As porous gravel (202a), scoria, a volcanic ash, was prepared, and in order to coat the surface of the porous gravel with a photocatalytic material, the porous gravel (202a) was dipped in a mixture of TiO2 and isopropyl alcohol (IPA) for 30 minutes, and then a heat treatment process was performed in an oven at 200°C for 1 hour. The porous gravel after the heat treatment process still contains pores on the surface and has an overall reddish color due to its characteristic of containing iron (Fe).

[0059] Referring again to FIG. 1, the pump (104) is connected to the discharge port of the storage tank (100) through a predetermined pipe and pumps the liquid discharged from the storage tank (100) at a predetermined flow rate and pressure. At least two pumps (104) are provided, and it is preferable that one of the two serves as an auxiliary pump.

[0060] The air supply device (103) is installed on one side of the pipe connected to the storage tank (100) and supplies air to discharge the remaining fluid in the pipe to the outside through the injection nozzle (112). The air supply device (103) may be connected to a separate air compressor, or alternatively, the air supply device (103) itself may be configured as an air compressor. When the summer solar panel washing and cooling mode is finished, the air supply device (103) discharges all remaining liquids such as groundwater, liquids, or tap water remaining in the entire pipe by air pressure, thereby preventing the pipe from freezing in the winter.

[0061] The liquid discharged from the storage tank (100) and pumped by the pump (104) is supplied to the pipe (111) via the main pipe (105).

[0062] A pump station is a facility that surrounds the exterior of a pump (104), a main pipe (105), an air supply device (103), a control unit (106), etc. to protect them. The pump station may be constructed as a house made of a concrete structure, etc., or a container, etc.

[0063] A pipe (111) is placed in a designated area of ​​a solar power generation facility to transport liquid pumped by a pump (104) and supply it to a spray nozzle (112). The pipe (111) may be buried underground under the road surface, or at least part of it may be exposed to the outside, if necessary.

[0064] The control unit (106) controls the operation of the pump (104) to control the flow rate and pressure of the liquid, on / off control, etc. The control unit (106) can be remotely controlled by communicating with a remote control device (107) that is composed of a remote control system including a remote mobile phone (smartphone) (107a) and / or a central control device (107b) which is a computer located in a central control room. The remote control device (107) can perform data communication with the control unit (106) through wired or wireless Internet, various serial communications, etc. Specifically, communication between the remote control device (107) and the control unit (106) can be performed according to at least one communication protocol selected from among, for example, LoRa, CDMA, LTE, Ethernet, CAN, RS422, RS232, and RS485. At least one communication protocol selected from among LoRa, CDMA, LTE, RS422, RS232, and RS485 may be used for communication between the control unit (106), the storage tank (100), the pump (104), the detection unit (113), and the electric valve (109).

[0065] The control unit (106) is preferably provided in a control panel having a metal housing. The control panel is preferably installed spatially within the pump station, but is not limited to this example. The control panel performs control of the valve box (108), control of the pump (104) or various control valves within the pump station, control of the main pipe (105), operation control of the agitator, and switching control for manual / automatic operation mode, etc. The control unit (106) can transmit data on the spraying status and standby status of the spray nozzle (112) detected by the detection unit (113) to the remote control device (107).

[0066] The detection unit (113) may be equipped with at least one detection sensor among a fine dust detection sensor that detects fine dust, a hazardous substance detection sensor that detects at least one selected from sulfur oxides, nitrogen oxides, volatile organic compounds, and radon, and other hazardous substances prescribed by the Ministry of Environment Ordinance, a temperature and humidity detection sensor that detects temperature and humidity, a rain detection sensor that detects the amount of snow or rain, and a road detection sensor that checks the state of snow or rain accumulated on the road surface. A detection signal output from the detection unit (113) is transmitted to the control unit (106) through the communication card box (114).

[0067] Around the detection unit (113), a video surveillance camera (116) that enables real-time confirmation of the spraying status, etc., and an information display board (117) composed of an LED or liquid crystal display device that displays the spraying status of the liquid, the concentration of fine dust, and the weather conditions can be placed.

[0068] The valve box (108) may be installed externally or embedded in a designated area within a solar power generation facility. One valve box (108) may be placed for each spray area including a plurality of spray nozzles (120).

[0069] The information display board (118) may be configured as, for example, an LED display board, installed on a solar power generation facility or a designated support. The information display board (118) may display phrases such as "solar panel cleaning," "solar panel cooling," or "solar panel snow removal," thereby facilitating the checking and management of the solar power generation facility's operating status.

[0070] Spray nozzles (120) are arranged at set intervals around a plurality of solar panels (1) and connected to a pipe (111). The spray nozzles (120) spray cleaning solution or de-icing solution onto the surface of the solar panels (1). The spray nozzles (120) may be arranged obliquely downward to correspond to the inclination angle of the solar panels (1). It is preferable that the left-right spray angle of the spray nozzles (120) be within 180 degrees.

[0071] The solar power supply (2) is a power supply provided to contribute to carbon neutrality, and is placed around a storage tank (100) or a pump (104) to generate direct current electricity through solar power generation. The solar power supply (2) may include a solar panel with a predetermined power generation capacity and a predetermined power conversion device. The direct current electricity generated by the solar power supply (2) can be used as a power source for the operation of at least the pump (104). Furthermore, the direct current electricity generated by the solar power supply (2) can be used as a power source for the operation of the LED mesh (210).

[0072] As described above, the water treatment device (201) can be placed in the internal space of the auxiliary tank (200). When the gravel filter (202) is placed in the water treatment device (201) and the treated water discharge valve (203) is closed, raw water, such as tap water or rainwater storage tank liquid, is supplied through the inlet pipe and stored in the auxiliary tank (200), water purification treatment proceeds naturally by the gravel filter (202) placed so as to be submerged in the water to be treated in the auxiliary tank (200). After the water treatment is purified for several to several tens of hours, the treated water discharge valve (203) is opened so that the purified treated water can be moved to the storage tank (100) and stored. At this time, the movement of the purified treated water can be performed by a predetermined pump. By repeating this process, the purified water collected in the storage tank (100) is transferred to the spray nozzle (120) via the pipe (111) and is sprayed from the spray nozzle (120) in the form of a fine stream of water to wash and cool the surface of the solar panel (1) or remove snow.

[0073] When the present invention is applied, pollutants can be naturally decomposed and purified within a water treatment device connected to a storage tank, thanks to the high specific surface area of ​​porous gravel submerged in water, the catalytic action of ceramic components, and the photocatalytic photodegradation reaction. Therefore, by spraying the purified liquid onto the surface of solar panels with simple equipment and low cost, cleaning efficiency can be increased and the surrounding air, water, and soil can be prevented from being polluted by the cleaning liquid.

Claims

1. In a solar power generation facility washing, cooling and snow removal system installed in a solar power generation facility with multiple solar panels, A storage tank for storing detergent or deicing fluid; A water treatment device disposed around or inside the storage tank to purify the liquid; Piping installed flush or externally; A pump that transports the washing liquid or snow removal liquid discharged from the storage tank through the pipe; and A plurality of spray nozzles are arranged at set intervals around the plurality of solar panels, connected to the pipe, and spray the cleaning solution or deicing solution onto the surface of the solar panels; The above water treatment device, A box-shaped or mesh-shaped support having an open upper surface and a number of perforations formed on the lower surface and the peripheral surface; A gravel filter having a plurality of porous gravels coated with a photocatalytic material on the surface disposed inside the support; and A washing, cooling and snow removal system for a solar power generation facility, characterized by including an LED mesh net, which is folded in a zigzag shape in the gravel filter section and has a plurality of LED elements installed at set intervals, capable of irradiating ultraviolet or visible light to the porous gravel to activate the photocatalytic material.

2. In paragraph 1, The above porous gravel is SiO 2 , Al 2 O 3 and Fe 2 O 3 A washing, cooling and snow removal system for a solar power plant characterized by a porous scoria volcanic eruption containing the component.

3. In paragraph 1, The above photocatalytic material is TiO 2 A washing, cooling and snow removal system for a solar power plant, characterized by including a component.

4. In paragraph 1, It further includes an auxiliary tank, which is arranged at the front end of the storage tank and is in communication with the storage tank and has a smaller storage capacity than the storage tank; A washing, cooling and snow removal system for a solar power generation facility, characterized in that the water treatment device is placed within the auxiliary tank.

5. In paragraph 1, A solar power generation facility washing, cooling and snow removal system further comprising a remote control device comprising a remote control system including a mobile phone or a central control device that performs communication with a control unit and remotely controls the pump; 6. In paragraph 5, A washing, cooling and snow removal system for a solar power generation facility, further comprising a detection unit that detects the spraying state and standby state of the above-mentioned spray nozzle.

7. In paragraph 1, A washing, cooling and snow removal system for a solar power plant, further comprising a solar power plant supplying power to at least the above pump.

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