WO2023015368A1 - Fluid spraying device for washing photovoltaic modules - Google Patents

Fluid spraying device for washing photovoltaic modules Download PDF

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Publication number
WO2023015368A1
WO2023015368A1 PCT/BR2022/050239 BR2022050239W WO2023015368A1 WO 2023015368 A1 WO2023015368 A1 WO 2023015368A1 BR 2022050239 W BR2022050239 W BR 2022050239W WO 2023015368 A1 WO2023015368 A1 WO 2023015368A1
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Prior art keywords
photovoltaic modules
cleaning
fluid
washing
sprinkler equipment
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PCT/BR2022/050239
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French (fr)
Portuguese (pt)
Inventor
Geraldo Luiz DIAS
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Dias Geraldo Luiz
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Publication of WO2023015368A1 publication Critical patent/WO2023015368A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/30—Spraying vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/20—Cleaning; Removing snow
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/10—Cleaning arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • a FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES consisting of a compact and powered equipment comprising a water reservoir and/or other cleaning/cooling fluid, in the same reservoir or separate reservoir, a means of pumping water and/or cleaning/cooling fluid to an applicator gun, with freedom of movement, coupled to a telescopic duct conducting an air flow generated by a centrifugal fan, which together with the water and/or cleaning/cooling fluid, which leak through the atomizing nozzles of the said applicator gun, effectively clean the photovoltaic modules without mechanical contact.
  • the field of application of the invention is in the energy generation segment, more specifically in the cleaning of photovoltaic modules of medium and large solar plants installed in the ground, taking advantage of the space between modules called streets, which aims to maintain the distance between the rows so as not to cause shadow between the modules themselves.
  • Terrestrial photovoltaic solar power plants gather at least an order of magnitude of thousands of solar panels, in order to have sufficient productive capacity to generate electricity at competitive prices.
  • Such panels in addition to being exposed to environmental weather and other residues, occupy a considerable area in the plants, which demands a sustainable and effective cleaning system to prevent a reduction in energy production, given that dirt on the surfaces of the panels impedes the passage of sunlight.
  • the current known systems for cleaning surfaces of solar panels are substantially of five types: (i) those that use vehicles pulling a tank trailer, for the workforce to wash manually using brooms and squeegee; (ii) those using vehicles equipped with a mechanical arm comprising a rotating brush and spray nozzles; (iii) those using fixed spraying systems that work on guides in the modules; (iv) systems with continuous liquid direction and, finally, (v) those that make use of elements such as nozzle, pan-tilt support with device to impel movement to the nozzle, pumping mechanism, reservoir and control panel.
  • the first system contemplates the use of tanks coupled by a trailer to the vehicle to supply workers washing modules manually with brooms and squeegee, with excessive water consumption. Mechanical contact with the dust accumulated on the surface of the module may cause scratches/microcracks that damage the part partially or completely or cause the loss of warranty. In this model, to clean the modules, the power generation system must be turned off due to the risk of electric shock.
  • the second system contemplates the use of vehicles equipped with a mechanical arm comprising a rotating brush and nozzles, as anticipated in EP 2295158.
  • These systems have disadvantages when using brushes and water in contact with accumulated dust, as in the first mentioned system, cause scratches/microcracks that can make the module unfeasible, in addition to, in some cases, applying excessive force to the module causing breakage and rendering the module unusable and voiding the warranty.
  • the system must be turned off due to the risk of electric shock.
  • the third system is represented by fixed equipment that works on guides. These systems, which comprise bars on which rotating nozzles or brushes are mounted, adopt lateral guides fixed to the panel structure or to the roof, or which are provided with transport systems such as belts, chains, linear actuators and cylinders to allow movement. bars parallel along the panel structures.
  • Some examples of this type are presented in WO20 11/004411, DE 10 2010 025 845, EP 2048455 and KR20090090722.
  • a drawback found in systems of this type lies in their inability to move from one row of panels to another due to the structure and complexity of the guide means. This makes them economically unfeasible for application in very extensive photovoltaic parks.
  • This system also uses brushes and water in contact with the dust parked in the modules, causing scratches/microcracks, which can make the modules unfeasible with the loss of warranty.
  • the system In this model, to clean the modules, the system must be turned off due to the risk of electric shock.
  • the fourth system continuously directing the cleaning liquid through a fixed nozzle, comprises a control mechanism, a tank or reservoir and spray injector systems to distribute a cleaning solution for washing the solar energy generation modules of automated way.
  • a control mechanism for controlling the cleaning liquid through a fixed nozzle.
  • a tank or reservoir for distributing a cleaning solution for washing the solar energy generation modules of automated way.
  • patent documents US20090545709 and US20100043851 are cited, referring to an automated system for cleaning a plurality of solar energy generation modules.
  • this system model there is the impossibility of increasing the reach of the cleaning content, such as, for example, a double row axis of modules, due to the nozzle being fixed.
  • the fifth system adjusted next to the surfaces or group of solar panels to be cleaned so that they are fixed and, when in operation, the nozzles move horizontally and vertically, allowing greater reach of the cleaning fluid and eliminating the need for human presence during cleaning.
  • the patent document BR 102017012952-7 A2 is mentioned.
  • the support responsible for the movements of the nozzles together with the entire invented structure makes it a compact system.
  • this model is the possibility of shading the support of the nozzles on the solar panel at certain times of the day, reducing its generation, the need for large distributed reservoirs and at several points for large plants, control of water spent per module and the lack of capacity for cleaning modules with very aggressive dirt since it does not have the aid of air flow.
  • Another point of disadvantage as there is no monitoring of the wash, is that the system does not redo points that were not cleaned and thus causes a decrease in generation.
  • FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES refers to equipment comprising at least one water reservoir and/or cleaning/cooling fluid, a joint or separate reservoir, a hydraulic pump, a torque multiplier, a fan connected to a telescopic duct that ends in a multidirectional air-directing cannon with atomizing nozzles controlled by valves and manipulators, which has freedom of vertical, radial and oblique movement.
  • the equipment makes use of the hydraulic system of the tractor that supports the chassis containing the above components and parts.
  • Figure 1 Perspective view of the fluid spray equipment for washing photovoltaic modules
  • Figure 2 Inverted perspective view of the fluid spray equipment for washing photovoltaic modules
  • FIG. 3 Exploded perspective view of the fluid spray equipment for washing photovoltaic modules
  • FIG. 4 Front view of the fluid spray equipment for washing photovoltaic modules
  • Figure 5 Rear view of the fluid spray equipment for washing photovoltaic modules
  • Figure 6 Side view of the fluid spray equipment for washing photovoltaic modules
  • Figure 7 Opposite side view of the fluid spray equipment for washing photovoltaic modules
  • Figure 8 Cutaway view of the fluid spray equipment for washing photovoltaic modules
  • Figure 9 Perspective view of the fluid sprinkler equipment for washing photovoltaic modules, mounted on a tractor;
  • Figure 10 Perspective view of the fluid spray equipment for washing photovoltaic modules, illustrating its use.
  • THE FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES is mounted on a chassis (2) supported on the third point of an agricultural tractor (3), which in the upper cavity (4) receives the at least one reservoir (5) containing water and/or cleaning/cooling fluid, which is directed through hoses (24) to atomizing nozzles (18) located inside a multidirectional cannon (17) directing, which emanates a cloud of product towards the solar panels (P) boosted to a flow rate of 50m/s thanks to the air flow coming from the telescopic duct (15).
  • the claimed invention deals with a compact equipment (1), mounted on a chassis (2) suitable for coupling to the third point of an agricultural tractor (3), or similar traction element.
  • the chassis (2) has a cavity (4) to receive at least one reservoir (5) of water and/or fluid for cleaning/cooling the solar panels (P), which may be in the same reservoir (5) or in different cavities and reservoirs (not shown), while in the lower portion of the chassis (2) there is a hydraulic pump (6), connected by means of a shaft (7) to the power take-off (8) of the tractor (3) and a torque multiplier (9) connected by known means, preferably pulleys (10) and belts (11), to the shaft of a fan (12) internal to a housing (13), front and adjacent to the reservoir (5) , which when activated its blades (14) generate an air flow in the direction of a telescopic duct (15), moved by a hydraulic piston (16), which ends in a cannon (17) multidirectional applicator of water and/or fluids of low
  • the cannon (17) is multidirectional, because in addition to the vertical displacement (A) provided by the action of the hydraulic piston (16) that effectuate the sliding between at least two concentric ducts, it also has a base (19) of rotation 360 s that makes the horizontal displacement (B), in which a hydraulic motor (20) moves a gearing mechanism and chain (not shown) and, finally, the oblique vertical movement (C) of up to 60 s made possible by the action of a hydraulic piston ( 21) actuated by a hydraulic motor (22).
  • Water and/or cleaning/cooling fluid are pumped under low pressure to the atomizing nozzles (18) by means of a pump (23), in the lower portion of the chassis, driven by pulleys (10) and belts (11) in which hoses (24) conduct the fluids to the atomizing nozzles (18), while the hydraulic energy comes from the tractor's hydraulic system (3) and is distributed by high pressure hoses (25) to the cannon movement systems (17) multidirectional applicator.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Photovoltaic Devices (AREA)

Abstract

A fluid spraying device is mounted on a chassis (2) supported on the top link of an agricultural tractor (3), and receiving in the top cavity (4) thereof at least one tank (5) containing water and/or a cleaning/cooling fluid led through hoses (24) to spraying nozzles (18) located inside a multidirectional spraying gun (17) that projects a cloud of the product towards the solar panels (P), the cloud being accelerated to achieve a flow rate of 50 m/s by means or air from the telescopic duct (15).

Description

EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES
Introdução Introduction
[0001] Refere-se o presente pedido de patente de Invenção de um EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, consiste em um equipamento compacto e movido que compreende um reservatório de água e/ ou outro fluido de limpeza/arrefecimento, no mesmo reservatório ou reservatório separado, um meio de bombeamento de água e/ou fluido de limpeza/arrefecimento para um canhão aplicador, com liberdade de movimentos, acoplado a um duto telescópico condutor de um fluxo de ar gerado por um ventilador centrífugo, que juntamente com a água e/ ou fluido de limpeza/arrefecimento, que extravasam pelos bicos atomizadores do referido canhão aplicador efetivam a limpeza dos módulos fotovoltaicos sem contato mecânico. [0001] Refers to this patent application for a FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, consisting of a compact and powered equipment comprising a water reservoir and/or other cleaning/cooling fluid, in the same reservoir or separate reservoir, a means of pumping water and/or cleaning/cooling fluid to an applicator gun, with freedom of movement, coupled to a telescopic duct conducting an air flow generated by a centrifugal fan, which together with the water and/or cleaning/cooling fluid, which leak through the atomizing nozzles of the said applicator gun, effectively clean the photovoltaic modules without mechanical contact.
Campo de aplicação Application field
[0002] O campo de aplicação da invenção é no segmento de geração de energia, mais especificamente na limpeza de módulos fotovoltaicos de médias e grandes usinas solar instaladas em solo, aproveitando o espaço entre módulos chamados de ruas, que tem como finalidade manter o distanciamento entre as fileiras para não ocasionar sombra entre os módulos propriamente ditos. [0002] The field of application of the invention is in the energy generation segment, more specifically in the cleaning of photovoltaic modules of medium and large solar plants installed in the ground, taking advantage of the space between modules called streets, which aims to maintain the distance between the rows so as not to cause shadow between the modules themselves.
Convencimento convincing
[0003] As usinas de energia solar fotovoltaicas terrestres reúnem pelo menos uma ordem de grandeza de milhares de painéis solares, a fim de terem capacidade produtiva suficiente para gerarem energia elétrica a preços competitivos. Tais painéis, além de ficarem expostos as intempéries ambientais e outros resíduos, ocupam considerável área nas usinas, o que demanda um sistema de limpeza sustentável e eficaz para não permitir a redução na produção energética, haja vista que sujidades nas superfícies dos painéis impedem a passagem da luz solar. [0003] Terrestrial photovoltaic solar power plants gather at least an order of magnitude of thousands of solar panels, in order to have sufficient productive capacity to generate electricity at competitive prices. Such panels, in addition to being exposed to environmental weather and other residues, occupy a considerable area in the plants, which demands a sustainable and effective cleaning system to prevent a reduction in energy production, given that dirt on the surfaces of the panels impedes the passage of sunlight.
[0004] A limpeza periódica dos painéis solares é necessária, uma vez que a eficiência dos mesmos é influenciada, além das intempéries ambientais, pelo acúmulo de poeira, excrementos de pássaros, fungos, microorganismos, que também causam manchas e corrosão nos painéis, diminuindo também sua vida útil. [0004] Periodic cleaning of solar panels is necessary, since their efficiency is influenced, in addition to environmental weather, by the accumulation of dust, bird droppings, fungi, microorganisms, which also cause stains and corrosion on the panels, also reducing their useful life.
[0005] Neste contexto, novas tecnologias que venham tornar mais eficaz e rápida a limpeza de painéis solares, sem preterir a qualidade, são bem-vindas no segmento em questão. [0005] In this context, new technologies that make cleaning solar panels more efficient and faster, without sacrificing quality, are welcome in the segment in question.
Estado da técnica state of the art
[0006] As tecnologias para limpeza de painéis solares atuais têm em suas características principais o contato com o módulo para a limpeza e quando o fazem sem o contato não oferecem opções para limpeza com grande grau de sujidade, portanto não atendem as necessidades de médias e grandes usinas. [0006] Current technologies for cleaning solar panels have as their main characteristics contact with the module for cleaning and when they do so without contact, they do not offer options for cleaning with a high degree of dirt, therefore they do not meet the needs of medium and big power plants.
[0007] Os atuais sistemas conhecidos para a limpeza de superfícies de painéis solares são substancialmente de cinco tipos: (i) os que utilizam veículos puxando uma carreta tanque, para a mão de obra fazer a lavagem de forma braçal com o uso de vassouras e rodo; (ii) os que utilizam veículos providos de um braço mecânico que compreende uma escova rotativa e bicos pulverizadores; (iii) os que utilizam sistemas fixos de pulverização que funcionam em guias nos módulos; (iv) os sistemas com o direcionamento contínuo do líquido e, por último, (v) os que fazem uso de elementos como esguicho, suporte pan-tilt com dispositivo para impelir movimento ao esguicho, mecanismo de bombeamento, reservatório e painel de controle. [0007] The current known systems for cleaning surfaces of solar panels are substantially of five types: (i) those that use vehicles pulling a tank trailer, for the workforce to wash manually using brooms and squeegee; (ii) those using vehicles equipped with a mechanical arm comprising a rotating brush and spray nozzles; (iii) those using fixed spraying systems that work on guides in the modules; (iv) systems with continuous liquid direction and, finally, (v) those that make use of elements such as nozzle, pan-tilt support with device to impel movement to the nozzle, pumping mechanism, reservoir and control panel.
[0008] O primeiro sistema comtempla a utilização de tanques acoplados por carreta ao veículo para abastecer operários lavando módulos manualmente com vassouras e rodo, com o consumo excessivo de água. O contato mecânico com a poeira acumulada na superfície do módulo poderá ocasionar riscos/microfissuras que danificam a peça parcial ou totalmente ou então cause a perda da garantia. Neste modelo, para a limpeza dos módulos o sistema de geração de energia deve ser desligado por risco de choque elétrico. [0008] The first system contemplates the use of tanks coupled by a trailer to the vehicle to supply workers washing modules manually with brooms and squeegee, with excessive water consumption. Mechanical contact with the dust accumulated on the surface of the module may cause scratches/microcracks that damage the part partially or completely or cause the loss of warranty. In this model, to clean the modules, the power generation system must be turned off due to the risk of electric shock.
[0009] O segundo sistema, contempla a utilização de veículos providos de um braço mecânico que compreende uma escova rotativa e bicos, como antecipado em EP 2295158. Estes sistemas apresentam como desvantagens quando do uso de escovas e água em contato com a poeira acumulada, tal como no primeiro sistema citado, causar riscos/microfissuras que podem inviabilizar o módulo, além de em alguns casos aplicar força excessiva no módulo causando quebra e inutilizando o módulo e a perda da garantia. Neste modelo, para a limpeza dos módulos o sistema deve ser desligado por risco de choque elétrico. [0009] The second system contemplates the use of vehicles equipped with a mechanical arm comprising a rotating brush and nozzles, as anticipated in EP 2295158. These systems have disadvantages when using brushes and water in contact with accumulated dust, as in the first mentioned system, cause scratches/microcracks that can make the module unfeasible, in addition to, in some cases, applying excessive force to the module causing breakage and rendering the module unusable and voiding the warranty. In this model, to clean the modules, the system must be turned off due to the risk of electric shock.
[0010] O terceiro sistema é representado por equipamentos fixos que funcionam em guias. Estes sistemas, que compreendem barras no qual estão montados esguichos ou escovas rotativas, adotam guias laterais fixas à estrutura de painéis ou para o telhado, ou que são fornecidos com sistemas de transporte tais como correias, correntes, atuadores lineares e cilindros para permitir o movimento paralelo das barras ao longo das estruturas de painéis. Alguns exemplos deste tipo são apresentados em WO20 11/004411 , DE 10 2010 025 845, EP 2048455 e KR20090090722. Um inconveniente encontrado em sistemas deste tipo reside na sua incapacidade de passar de uma fila de painéis para outro devido à estrutura e complexidade dos meios de guia. Isto os torna economicamente inviáveis para a aplicação em parques fotovoltaicos muito extensos. Esse sistema também utiliza o uso de escovas e água em contato com a poeira estacionada nos módulos proporcionando riscos/microfissuras, que podem inviabilizar os módulos com a perda da garantia. Neste modelo, para a limpeza dos módulos o sistema deve ser desligado por risco de choque elétrico. [0010] The third system is represented by fixed equipment that works on guides. These systems, which comprise bars on which rotating nozzles or brushes are mounted, adopt lateral guides fixed to the panel structure or to the roof, or which are provided with transport systems such as belts, chains, linear actuators and cylinders to allow movement. bars parallel along the panel structures. Some examples of this type are presented in WO20 11/004411, DE 10 2010 025 845, EP 2048455 and KR20090090722. A drawback found in systems of this type lies in their inability to move from one row of panels to another due to the structure and complexity of the guide means. This makes them economically unfeasible for application in very extensive photovoltaic parks. This system also uses brushes and water in contact with the dust parked in the modules, causing scratches/microcracks, which can make the modules unfeasible with the loss of warranty. In this model, to clean the modules, the system must be turned off due to the risk of electric shock.
[0011] O quarto sistema, de direcionamento contínuo do líquido de limpeza por meio de esguicho fixo, compreende mecanismo de controle, um tanque ou reservatório e sistemas injetores de pulverização para distribuir uma solução de limpeza para lavagem dos módulos de geração de energia solar de forma automatizada. Como exemplo, citam-se os documentos de patentes US20090545709 e US20100043851 , referente a um sistema automatizado para a limpeza de uma pluralidade de módulos de geração de energia solar. Como limitação deste modelo de sistema tem-se a impossibilidade do aumento do alcance do conteúdo de limpeza, como, por exemplo, eixo de fila dupla de módulos, devido ao esguicho ser fixo. [0011] The fourth system, continuously directing the cleaning liquid through a fixed nozzle, comprises a control mechanism, a tank or reservoir and spray injector systems to distribute a cleaning solution for washing the solar energy generation modules of automated way. As an example, patent documents US20090545709 and US20100043851 are cited, referring to an automated system for cleaning a plurality of solar energy generation modules. As a limitation of this system model, there is the impossibility of increasing the reach of the cleaning content, such as, for example, a double row axis of modules, due to the nozzle being fixed.
[0012] O quinto sistema ajustado junto às superfícies ou grupo de painéis solares a serem limpos de forma que fiquem fixos e, ao entrar em operação, os esguichos se movam horizontalmente e verticalmente permitindo maior alcance do fluido de limpeza e anulando a necessidade de presença humana nos momentos de limpeza. Como exemplo, cita-se o documento de patente BR 102017012952-7 A2. Vale ressaltar ainda que o suporte responsável pelos movimentos dos esguichos junto com toda a estrutura inventada o faz um sistema compacto. Como limitação deste modelo é a possibilidade de sombreamento do suporte dos esguichos sobre o painel solar em determinados horários do dia, diminuindo sua geração, necessidade de grandes reservatórios distribuídos e em vários pontos para grandes usinas, controle de água gasto por módulo e a não capacidade de limpeza de módulos com grande agressividade de sujidade já que não tem o auxílio do fluxo de ar. Ainda um ponto de desvantagem, por não haver acompanhamento da lavagem, é não refazer pontos não limpos pelo sistema e assim ocasionar diminuição na geração. [0012] The fifth system adjusted next to the surfaces or group of solar panels to be cleaned so that they are fixed and, when in operation, the nozzles move horizontally and vertically, allowing greater reach of the cleaning fluid and eliminating the need for human presence during cleaning. As an example, the patent document BR 102017012952-7 A2 is mentioned. It is also worth mentioning that the support responsible for the movements of the nozzles together with the entire invented structure makes it a compact system. As a limitation of this model is the possibility of shading the support of the nozzles on the solar panel at certain times of the day, reducing its generation, the need for large distributed reservoirs and at several points for large plants, control of water spent per module and the lack of capacity for cleaning modules with very aggressive dirt since it does not have the aid of air flow. Another point of disadvantage, as there is no monitoring of the wash, is that the system does not redo points that were not cleaned and thus causes a decrease in generation.
Objetivos da invenção Objectives of the invention
[0013] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos sem contato mecânico com os painéis solares, autônomo no que tange a água de lavagem e/ ou fluido de limpeza/ arrefecimento e que por ser acoplado ao terceiro ponto do trator, possibilita o trânsito entre fileiras da usina solar e se necessário retorno pela mesma fileira. [0013] It is the objective of the present invention to propose a fluid spray equipment for cleaning photovoltaic modules without mechanical contact with the solar panels, autonomous with regard to washing water and/or cleaning/cooling fluid and which, due to being coupled to the third tractor point, allows transit between rows of the solar plant and, if necessary, return through the same row.
[0014] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos cuja combinação da aspersão da nuvem de água mais fluxo de ar e grau de liberdade de movimentação do canhão multidirecional aplicador (giro, vertical e obliqua), possibilita a remoção de sujidades, mesmo severas, dos painéis solares, de forma rápida, seguindo as recomendações dos fabricantes em relação aos cuidados com o produto. [0014] It is the objective of the present invention to propose a fluid spray equipment for cleaning photovoltaic modules whose combination of water cloud spray plus air flow and degree of freedom of movement of the applicator multidirectional cannon (rotating, vertical and oblique), enables the removal of dirt, even severe, from solar panels, quickly, following the manufacturers' recommendations regarding product care.
[0015] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos que opera sem necessidade de desligamento do sistema. Todo o manuseio se dá no solo, sem nenhum contato com os módulos fotovoltaicos, a limpeza se dá como se os módulos estivessem sendo lavados por uma chuva natural, com a diferença de estar com os jatos direcionados. [0015] It is the objective of the present invention to propose a fluid spray equipment for cleaning photovoltaic modules that operates without the need to shut down the system. All handling takes place on the ground, without any contact with the photovoltaic modules, cleaning takes place as if the modules were being washed by natural rain, with the difference being with the directed jets.
[0016] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos de reduzida complexidade construtiva. [0017] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos de reduzido consumo de água, com cerca 1 ,2L/ módulo, buscando a continuidade do processo de geração de energia de forma sustentável na manutenção do sistema. [0016] It is the objective of the present invention to propose a fluid sprinkler equipment for cleaning photovoltaic modules of reduced constructive complexity. [0017] It is the objective of the present invention to propose a fluid sprinkler equipment for cleaning photovoltaic modules with reduced water consumption, with about 1.2L/module, seeking the continuity of the energy generation process in a sustainable way in the maintenance of the system.
[0018] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos que não interfere na luminosidade dos painéis solares, não causando sombreamento. [0018] It is the objective of the present invention to propose a fluid sprinkler equipment for cleaning photovoltaic modules that does not interfere with the brightness of the solar panels, causing no shading.
[0019] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos que também se aplica no arrefecimento dos painéis solares devido as altas temperaturas que podem afetar a eficiência dos mesmos na geração da energia. Portanto, a limpeza por meio do uso de fluido, que se enquadra na presente invenção, também contribui no melhoramento do rendimento do painel no sentido de diminuir a temperatura deste. [0019] It is the objective of the present invention to propose a fluid spray equipment for cleaning photovoltaic modules that is also applied in the cooling of solar panels due to the high temperatures that can affect their efficiency in energy generation. Therefore, cleaning through the use of fluid, which falls within the scope of the present invention, also contributes to improving the performance of the panel in the sense of decreasing its temperature.
[0020] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos operado apenas por uma pessoa. [0020] It is the objective of the present invention to propose a fluid spray equipment for cleaning photovoltaic modules operated by only one person.
[0021] É objetivo da presente invenção propor um equipamento aspersor de fluido para limpeza de módulos fotovoltaicos de ótima relação custo x benefício. [0021] It is the objective of the present invention to propose a fluid spray equipment for cleaning photovoltaic modules with an excellent cost-benefit ratio.
Sumário da invenção Summary of the invention
[0022] EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, trata de um equipamento que compreende pelo menos um reservatório de água e/ ou fluido de limpeza/ arrefecimento, reservatório junto ou separado, uma bomba hidráulica, um multiplicador de torque, um ventilador ligado a um duto telescópico que finda em um canhão multidirecional direcionador de ar com bicos atomizadores controlados por válvulas e manipuladores, o qual possui liberdade de movimentação vertical, radial e oblíqua. Para perfeito funcionamento, o equipamento faz uso do sistema hidráulico do trator que sustenta o chassi contendo os componentes e peças acima. [0022] FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, refers to equipment comprising at least one water reservoir and/or cleaning/cooling fluid, a joint or separate reservoir, a hydraulic pump, a torque multiplier, a fan connected to a telescopic duct that ends in a multidirectional air-directing cannon with atomizing nozzles controlled by valves and manipulators, which has freedom of vertical, radial and oblique movement. For perfect operation, the equipment makes use of the hydraulic system of the tractor that supports the chassis containing the above components and parts.
Descrição das figuras Description of figures
[0023] Na sequência são apresentadas as figuras para melhor explicar o pedido de patente de forma ilustrativa e não limitativa: Figura 1 : Vista em perspectiva do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; [0023] The following figures are presented to better explain the patent application in an illustrative and non-limiting manner: Figure 1 : Perspective view of the fluid spray equipment for washing photovoltaic modules;
Figura 2: Vista em perspectiva invertida do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 2: Inverted perspective view of the fluid spray equipment for washing photovoltaic modules;
Figura 3: Vista em perspectiva explodida do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 3: Exploded perspective view of the fluid spray equipment for washing photovoltaic modules;
Figura 4: Vista anterior do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 4: Front view of the fluid spray equipment for washing photovoltaic modules;
Figura 5: Vista posterior do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 5: Rear view of the fluid spray equipment for washing photovoltaic modules;
Figura 6: Vista lateral do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 6: Side view of the fluid spray equipment for washing photovoltaic modules;
Figura 7: Vista lateral oposta do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 7: Opposite side view of the fluid spray equipment for washing photovoltaic modules;
Figura 8: Vista em corte do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos; Figure 8: Cutaway view of the fluid spray equipment for washing photovoltaic modules;
Figura 9: Vista em perspectiva do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos, montado em um trator; Figure 9: Perspective view of the fluid sprinkler equipment for washing photovoltaic modules, mounted on a tractor;
Figura 10: Vista em perspectiva do equipamento aspersor de fluido para lavagem de módulos fotovoltaicos, ilustrando uso. Figure 10: Perspective view of the fluid spray equipment for washing photovoltaic modules, illustrating its use.
Descrição detalhada da invenção Detailed description of the invention
[0024] O EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, objeto desta solicitação de patente de invenção é montado em um chassi (2) sustentado no terceiro ponto de um trator (3) agrícola, que na cavidade (4) superior recepciona pelo menos um reservatório (5) contendo água e/ ou fluido de limpeza/ arrefecimento, que é direcionado por meio de mangueiras (24) para bicos atomizadores (18) localizados no interior de um canhão (17) multidirecional direcionador, que emana uma nuvem de produto na direção dos painéis solares (P) potencializada para uma vazão de 50m/s graças ao fluxo de ar proveniente do duto (15) telescópico. [0025] Mais particularmente, a invenção reivindicada trata de um equipamento (1 ) compacto, montado em um chassi (2) apropriado para acoplamento no terceiro ponto de um trator (3) agrícola, ou elemento de tração congênere. Na porção superior, o chassi (2) apresenta uma cavidade (4) para receber pelo menos um reservatório (5) de água e/ ou fluido de limpeza/ arrefecimento dos painéis solares (P), podendo ser no mesmo reservatório (5) ou em cavidades e reservatórios distintos (não demonstrados), ao passo que na porção inferior do chassi (2) se destaca uma bomba hidráulica (6), ligada por meio de eixo (7) à tomada de força (8) do trator (3) e a um multiplicador (9) de torque conectado por meios já conhecidos, preferencialmente polias (10) e correias (11 ), ao eixo de um ventilador (12) interno a uma carcaça (13), frontal e contígua ao reservatório (5), que quando acionado suas palhetas (14) geram um fluxo de ar na direção de um duto (15) telescópico, movimentado por um pistão hidráulico (16), que finda em um canhão (17) multidirecional aplicador da água e/ ou fluidos de limpeza/ arrefecimento à baixa pressão, contido (s) no (s) reservatório (s) (5), através dos bicos atomizadores (18) estrategicamente instalados em sua parede interna, que em contato com o fluxo de ar proveniente do duto (15) telescópico potencializa a nuvem com fluidos de limpeza/ arrefecimento para uma vazão de até 50m/s. O canhão (17) é multidirecional, pois além do deslocamento vertical (A) propiciado pela ação do pistão hidráulico (16) que efetiva o deslizamento entre pelo menos dois dutos concêntricos, também possui uma base (19) de giro 360s que perfaz o deslocamento horizontal (B), em que um motor hidráulico (20) faz movimentar um mecanismo de engrenamento e corrente (não demonstrado) e, por fim, o movimento vertical oblíquo (C) de até 60s viabilizado pela ação de um pistão hidráulico (21 ) atuado por um motor hidráulico (22). [0026] A água e/ou fluido de limpeza/ arrefecimento são recalcados em baixa pressão até os bicos atomizadores (18) por meio de bomba (23), na porção inferior do chassi, acionada por polias (10) e correias (11 ) em que mangueiras (24) conduzem os fluidos até os bicos atomizadores (18), ao passo que a energia hidráulica provém do sistema hidráulico do trator (3) e é distribuída por mangueiras (25) de alta pressão para os sistemas de movimentação do canhão (17) multidirecional aplicador. [0024] THE FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, object of this invention patent application, is mounted on a chassis (2) supported on the third point of an agricultural tractor (3), which in the upper cavity (4) receives the at least one reservoir (5) containing water and/or cleaning/cooling fluid, which is directed through hoses (24) to atomizing nozzles (18) located inside a multidirectional cannon (17) directing, which emanates a cloud of product towards the solar panels (P) boosted to a flow rate of 50m/s thanks to the air flow coming from the telescopic duct (15). [0025] More particularly, the claimed invention deals with a compact equipment (1), mounted on a chassis (2) suitable for coupling to the third point of an agricultural tractor (3), or similar traction element. In the upper portion, the chassis (2) has a cavity (4) to receive at least one reservoir (5) of water and/or fluid for cleaning/cooling the solar panels (P), which may be in the same reservoir (5) or in different cavities and reservoirs (not shown), while in the lower portion of the chassis (2) there is a hydraulic pump (6), connected by means of a shaft (7) to the power take-off (8) of the tractor (3) and a torque multiplier (9) connected by known means, preferably pulleys (10) and belts (11), to the shaft of a fan (12) internal to a housing (13), front and adjacent to the reservoir (5) , which when activated its blades (14) generate an air flow in the direction of a telescopic duct (15), moved by a hydraulic piston (16), which ends in a cannon (17) multidirectional applicator of water and/or fluids of low pressure cleaning/cooling, contained in the reservoir(s) (5), through the atomizing nozzles (18) strategically insta sides on its inner wall, which in contact with the air flow from the telescopic duct (15) enhances the cloud with cleaning/cooling fluids for a flow rate of up to 50m/s. The cannon (17) is multidirectional, because in addition to the vertical displacement (A) provided by the action of the hydraulic piston (16) that effectuate the sliding between at least two concentric ducts, it also has a base (19) of rotation 360 s that makes the horizontal displacement (B), in which a hydraulic motor (20) moves a gearing mechanism and chain (not shown) and, finally, the oblique vertical movement (C) of up to 60 s made possible by the action of a hydraulic piston ( 21) actuated by a hydraulic motor (22). [0026] Water and/or cleaning/cooling fluid are pumped under low pressure to the atomizing nozzles (18) by means of a pump (23), in the lower portion of the chassis, driven by pulleys (10) and belts (11) in which hoses (24) conduct the fluids to the atomizing nozzles (18), while the hydraulic energy comes from the tractor's hydraulic system (3) and is distributed by high pressure hoses (25) to the cannon movement systems (17) multidirectional applicator.

Claims

8 8
REIVINDICAÇÕES
1 ) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, montado em um chassi (2) apropriado para acoplamento no terceiro ponto de um trator (3) agrícola caracterizado por na cavidade (4) superior receber pelo menos um reservatório (5) de água e/ ou fluido de limpeza/ arrefecimento dos painéis solares (P); na porção inferior do chassi (2) uma bomba hidráulica (6), ligada por meio de eixo (7) à tomada de força (8) do trator (3) e a um multiplicador (9) de torque conectado por meios já conhecidos ao eixo de um ventilador (12) interno a uma carcaça (13) cujas palhetas (14) geram um fluxo de ar na direção de um duto (15) telescópico, movimentado por um pistão hidráulico (16), que finda em um canhão (17) multidirecional aplicador da água e/ ou fluidos de limpeza/ arrefecimento à baixa pressão através dos bicos atomizadores (18), que em contato com o fluxo de ar potencializa a nuvem com fluidos de limpeza/ arrefecimento para uma vazão de até 50m/s. 1) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, mounted on a chassis (2) suitable for coupling to the third point of an agricultural tractor (3) characterized in that the upper cavity (4) receives at least one water reservoir (5) and/or solar panel cleaning/cooling fluid (P); in the lower portion of the chassis (2) a hydraulic pump (6), connected by means of a shaft (7) to the power take-off (8) of the tractor (3) and to a torque multiplier (9) connected by known means to the shaft of a fan (12) internal to a housing (13) whose blades (14) generate an air flow towards a telescopic duct (15), moved by a hydraulic piston (16), which ends in a cannon (17 ) multidirectional applicator of water and/or cleaning/cooling fluids at low pressure through the atomizing nozzles (18), which, in contact with the air flow, enhances the cloud with cleaning/cooling fluids for a flow rate of up to 50m/s.
2) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, de acordo com a reivindicação 1 caracterizado pela água e fluidos de limpeza/ arrefecimento estarem no mesmo reservatório (5) ou em cavidades e reservatórios distintos. 2) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, according to claim 1, characterized in that water and cleaning/cooling fluids are in the same reservoir (5) or in different cavities and reservoirs.
3) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, de acordo com a reivindicação 1 caracterizado pela ligação do eixo (7) do multiplicador de torque (9) ser por polias (10) e correias (11 ). 3) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, according to claim 1, characterized by the connection of the shaft (7) of the torque multiplier (9) by pulleys (10) and belts (11).
4) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, de acordo com a reivindicação 1 caracterizado pelos bicos atomizadores (18) estarem estrategicamente instalados na parede interna do canhão (17) multidirecional direcionador. 4) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, according to claim 1 characterized by the atomizing nozzles (18) being strategically installed on the inner wall of the cannon (17) multidirectional driver.
5) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, de acordo com a reivindicação 1 caracterizado pelo canhão (17) é multidirecional apresentar deslocamento vertical (A) propiciado pela ação do pistão hidráulico (16); movimento horizontal (B) pela ação de uma base (19) de giro 360s 9 atuada por um motor hidráulico (20) que faz movimentar um mecanismo de engrenamento e corrente; movimento vertical oblíquo (C) de até 60s viabilizado pela ação de um pistão hidráulico (21 ) atuado por um motor hidráulico (22). 5) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, according to claim 1 characterized by the cannon (17) is multidirectional to present vertical displacement (A) provided by the action of the hydraulic piston (16); horizontal movement (B) by the action of a base (19) rotating 360 s 9 actuated by a hydraulic motor (20) which moves a gearing mechanism and chain; oblique vertical movement (C) of up to 60 s made possible by the action of a hydraulic piston (21) actuated by a hydraulic motor (22).
6) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, de acordo com a reivindicação 1 caracterizado pelo por uma bomba (23) acionada por polias (10) e correias (11 ) por meio de mangueiras (24) conduzir os fluidos até os bicos atomizadores (18). 6) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, according to claim 1, characterized by a pump (23) driven by pulleys (10) and belts (11) by means of hoses (24) to conduct the fluids to the nozzles atomizers (18).
7) EQUIPAMENTO ASPERSOR DE FLUIDO PARA LAVAGEM DE MÓDULOS FOTOVOLTAICOS, de acordo com a reivindicação 1 caracterizado pelo sistema hidráulico do trator (3) suprir por mangueiras (25) de alta pressão os sistemas de movimentação do canhão (17) multidirecional aplicador. 7) FLUID SPRINKLER EQUIPMENT FOR WASHING PHOTOVOLTAIC MODULES, according to claim 1 characterized by the hydraulic system of the tractor (3) supplying the high pressure hoses (25) to the movement systems of the cannon (17) multidirectional applicator.
PCT/BR2022/050239 2021-08-12 2022-06-24 Fluid spraying device for washing photovoltaic modules WO2023015368A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1068713U (en) * 2008-09-11 2008-11-16 Antonio Esteban Caler Cleaning device for solar plates (Machine-translation by Google Translate, not legally binding)
US20110094542A1 (en) * 2009-01-09 2011-04-28 Solar Bright, S.L. Method of cleaning solar panels and vehicle for performing said cleaning
CZ305855B6 (en) * 2012-08-01 2016-04-13 Smortino Ltd. Method of surface treatment of solar panels and apparatus for making the same
CN203911860U (en) * 2014-05-05 2014-10-29 山东交通学院 Multifunctional solar cell panel cleaning vehicle
CN205183207U (en) * 2015-09-17 2016-04-27 中国船舶重工集团公司第七一三研究所 Intelligent photovoltaic array washs car
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