Dedusting gel and photovoltaic panel dedusting data monitoring method thereof

Abstract

The invention discloses a dedusting gel and a method for monitoring dedusting data of a photovoltaic panel by using the dedusting gel. The preparation method comprises the following steps: preparing gel from N, N '-methylene bisacrylamide, ammonium persulfate and a photoinitiator (2-hydroxy-4'-(2-hydroxyethoxy)-2-methyl propiophenone) on the basis of a free radical graft copolymerization reaction; the core advantage of the technology is that fogdrops can adsorb and agglutinate dust particles by using the viscosity of the hydrogel and the gravitation and Van der Waals force between molecules of the hydrogel and particulate matter molecules; the photovoltaic monitoring system mainly comprises a photovoltaic assembly and a circuit control box, and various key electrical elements including a solar charging controller, a fuse, a relay, a storage battery and an indicator light are integrated in the control box. Dust removal of the photovoltaic power generation panel is achieved through gel spraying, meanwhile, remote monitoring is conducted through the photovoltaic monitoring system, the power generation condition of the photovoltaic panel can be observed in time, and the abnormal working condition of the photovoltaic panel can be found.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection and photovoltaic panel cleaning, and particularly relates to a dust removal gel and a method for monitoring dust removal data of a photovoltaic panel using the gel. Background Art

[0002] As the global demand for clean energy continues to grow, photovoltaic power generation, as an important part of sustainable energy, has received widespread attention for its technological development and application.

[0003] In the field of photovoltaic power generation technology, cleaning and monitoring technology is a key link in improving system efficiency and stability. At present, photovoltaic modules are exposed to the outside for a long time and are prone to dust accumulation, resulting in a 10% to 20% reduction in power generation efficiency, and may cause local overheating, affecting the service life. Traditional photovoltaic dust removal relies on manual or simple machinery, which is inefficient and labor-intensive. Modern technologies such as automatic cleaning, electrostatic dust removal, and ultrasonic cleaning are efficient but costly and complex, and it is difficult to effectively remove tiny particles. The commonly used data monitoring technology is difficult to apply on a large scale due to its complex equipment, high cost, and inconvenient operation. Summary of the invention

[0004] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides a dust removal gel and a method for monitoring dust removal data of photovoltaic panels, which mainly aims to remove dust and clean photovoltaic panels to improve the power generation efficiency of photovoltaic panels, and at the same time monitor the voltage and current output data of photovoltaic panels in real time.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a dust removal gel, the preparation process of which is as follows: distilled water is placed in a constant temperature magnetic stirrer for preheating treatment, a certain amount of acrylic acid (AA) is added to the distilled water after preheating and stirring for a certain period of time, a certain amount of ammonium persulfate (APS) is added after a period of reaction, a certain amount of N,N'-methylenebisacrylamide (MBA) is added after a period of time, and then 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone (Irgacure2959) is added, and free radical graft copolymerization is promoted by stirring. When the solution is about to gel, it is quickly poured out and an appropriate amount of alcohol reagent is added to dilute it to obtain a dust removal gel, and finally the dust removal gel solution is stored in a spray device.

[0006] Furthermore, the temperature in the thermostatic magnetic stirrer was 70 °C.

[0007] Furthermore, the distilled water was preheated and stirred for 10 min, followed by the addition of AA, the addition of APS after 10 min, the addition of MBA after 1 min, and the introduction of Irgacure 2959 immediately afterwards.

[0008] Furthermore, the alcohol reagent is ethanol.

[0009] The method for monitoring dust removal data of photovoltaic panels using dust removal gel comprises the following steps: S1. Connect the photovoltaic panel to the electric control box through the line, and then place the photovoltaic panel in a direct sunlight area; S2. Turn on the relay switch in the electric control box. The solar charging control in the electric control box can display the working voltage and current parameters of the photovoltaic panel in real time. S3, operating the spray device to evenly spray the dust removal gel solution on the surface of the dusty photovoltaic module; S4. As the photovoltaic panels work, the electric control box monitors the voltage and current output data of the photovoltaic panels in real time and records the data.

[0010] Furthermore, the photovoltaic panel is connected to the electric control box via the space plug on the right.

[0011] Furthermore, a solar charge controller, a surge protector, a relay, a battery and a wireless communication module are arranged inside the electric control box. The solar charge controller has a display screen, the battery model is 12 V, 9 Ah, and the wireless module has an antenna and a green indicator light.

[0012] Furthermore, in step S2, the relay switch is turned on first, the photovoltaic data monitoring system in the electric control box is started, and the working voltage and current parameters of the photovoltaic panel are monitored in real time through the display screen of the solar charging controller.

[0013] Furthermore, in step S4, the wireless communication module encodes and processes the data and then sends it, and the voltage and current data parameters are viewed on the mobile phone to remotely monitor the operating status of the photovoltaic panel; in step S4, the photovoltaic data monitoring system predicts the maximum adsorption capacity of the gel coating based on the Langmuir adsorption model, and determines whether the gel coating has reached adsorption saturation.

[0014] Furthermore, in step S4, the three-dimensional network structure of the dust removal gel solution gives its surface abundant microscopic depressions and protrusions, which provide a large number of embedding sites for dust particles, significantly increase the contact area of ​​physical adsorption, and thus significantly improve the adsorption performance; the gel film-dust complex formed by the dust removal gel solution on the surface of the photovoltaic panel in step S4 is integrated and easy to handle, and there is no residue on the photovoltaic panel.

[0015] By adopting the above technical solution, the present invention has the following advantages and beneficial effects compared with the prior art: (1) Dust removal effect: The present invention develops a method for preparing dust removal gel with simple process and low cost, and uses dust removal technology based on viscosity, intermolecular attraction and van der Waals force. By adsorbing and agglomerating dust particles through gel, the dust removal problem of tiny particles is effectively solved, and the dust removal effect is more significant.

[0016] (2) Maintenance cost: Traditional dust removal methods require a lot of manpower and water resources and are costly. Frequent operation may cause equipment damage. The preparation and use of gel spray is relatively simple, low-cost and easy to operate. The gel is soft in texture and removes dust more gently, which can increase the service life of photovoltaic equipment.

[0017] (3) Monitoring function: The existing photovoltaic monitoring system has problems such as single function and inability to conduct real-time remote monitoring. The photovoltaic data monitoring system of the present invention integrates multiple functions and improves the stability and reliability of the photovoltaic system.

[0018] (4) Power generation efficiency: Through efficient dust removal and precise monitoring, it is possible to ensure that photovoltaic panels are always in good working condition, reduce the reduction in power generation efficiency caused by dust accumulation or equipment failure, and effectively improve the overall power generation efficiency.

[0019] In summary, the present invention proposes a dust removal technology based on viscosity, intermolecular attraction and van der Waals force, which effectively helps solve the cleaning problem of tiny particles by adsorbing and agglomerating dust particles through gel. At the same time, the photovoltaic monitoring system integrates photovoltaic components and electrical control boxes, which can realize efficient cleaning of photovoltaic panels and convenient monitoring of power generation data, thereby improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the connection between the electric control box and the photovoltaic panel.

[0021] In the figure: 1-electrical control box; 2-solar charge controller; 3-wireless communication module; 4-surge protector; 5-relay; 6-battery; 7-space plug; 8-photovoltaic panel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] A dust removal gel is prepared as follows: (1) taking an appropriate amount of distilled water and placing it in a 70°C constant temperature magnetic stirrer, preheating and stirring for 10 minutes to achieve homogenization of the reaction medium; (2) After preheating, AA (mass fraction of 7.50%) was added to distilled water, followed by MBA (mass fraction of 1.34%) after 10 minutes, APS (mass fraction of 0.09%) after another 1 minute, and then Irgacure2959 (mass fraction of 1.79%) was immediately introduced. The mass fractions of the above agents are the mass fractions of the agent in the total mixture. The stirring process was continued to promote the full progress of the free radical graft copolymerization reaction. (3). In the early stage of gelation, the reaction mixture is quickly transferred and diluted with ethanol reagent to reduce the viscosity of the system to facilitate the subsequent spraying process. The diluted polymer solution is stored in a professional spray device for subsequent surface treatment; Dust removal gel is used in photovoltaic panel dust removal data monitoring method, such as Figure 1 As shown, the following steps are included: (1) Electrically connect the photovoltaic panel to the electric control box 1 through the space plug 7 on the right, and place the interconnected photovoltaic panel 8 in a direct sunlight area to maximize the solar energy capture efficiency and achieve efficient photoelectric conversion; (2). In accordance with the established sequence, first turn on the surge protector 4 (switch) of the right relay 5, and then turn on the surge protector 4 (switch) of the left relay 5 to start the photovoltaic data monitoring system, observe whether the signal indicator of the wireless communication module 3 is on, and whether the photovoltaic panel 8 collects sunlight and converts it into electrical energy and stores it in the battery 6 for use by the load. Real-time monitoring is performed through the display screen of the solar charge controller 2 (integrated controller) to ensure that the system operates normally; (3). The wireless communication module 3 encodes and processes the collected voltage, current and other data before sending them. Users can view relevant data parameters through the mobile phone to achieve remote monitoring of the equipment operation status, thereby improving the convenience and real-time nature of monitoring; (4). The prepared gel spray is evenly sprayed on the surface of the dusty photovoltaic panel 8. After a certain period of time, the ethanol gradually evaporates and the spray liquid turns into a gel state. When the particles contact the surface of the gel, surface adsorption occurs, that is, the particles molecules or ions are adsorbed on the surface of the hydrogel. Subsequently, the particles further penetrate into the hydrogel and form an adsorption layer of a certain thickness therein. Finally, the particles interact with the functional groups inside the hydrogel through ion exchange, complexation, etc., so that they are more stably adsorbed. (5). When the adsorption amount of particles in the hydrogel reaches a certain level, the adsorption process will gradually tend to a state of equilibrium. The experimental data can be analyzed by the Langmuir isotherm model. If the experimental data fits the model well, it can be determined that the gel has reached adsorption equilibrium, thus providing a theoretical basis for the evaluation of adsorption performance. (6) After a certain period of time, the hydrogel film formed by the hydrogel spray is integrated with the dust complex, which is easy to handle and leaves no residue on the surface of the photovoltaic panel, which can simplify subsequent cleaning operations and ensure the efficient operation of the photovoltaic module.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A dust removal gel, characterized in that: The preparation process is as follows: distilled water is placed in a constant temperature magnetic stirrer for preheating treatment, and a certain amount of acrylic acid (AA) is added to the distilled water after preheating and stirring for a certain period of time. After a period of reaction, a certain amount of ammonium persulfate (APS) is added. After a period of time, a certain amount of N,N'-methylenebisacrylamide (MBA) is added, and then 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone (Irgacure2959) is added. Free radical grafting copolymerization is promoted by stirring. When the solution is about to gel, it is quickly poured out and an appropriate amount of alcohol reagent is added to dilute it to obtain a dust removal gel. Finally, the dust removal gel solution is stored in a spray device.

2. A dust removal gel according to claim 1, characterized in that: The temperature in the thermostatic magnetic stirrer was 70 °C.

3. The dust removal gel according to claim 1, characterized in that: The distilled water was preheated and stirred for 10 min, followed by the addition of AA, APS after 10 min, and MBA after 1 min, followed by the introduction of Irgacure 2959 immediately afterwards.

4. The dust removal gel according to claim 1, characterized in that: The alcohol reagent is ethanol.

5. A method for monitoring dust removal data of photovoltaic panels using the dust removal gel according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Connect the photovoltaic panel to the electric control box through the line, and then place the photovoltaic panel in a direct sunlight area; S2. Turn on the relay switch in the electric control box. The solar charging control in the electric control box can display the working voltage and current parameters of the photovoltaic panel in real time. S3, operating the spray device to evenly spray the dust removal gel solution on the surface of the dusty photovoltaic module; S4. As the photovoltaic panels work, the electric control box monitors the voltage and current output data of the photovoltaic panels in real time and records the data.

6. The dust removal gel according to claim 5 is used in a method for monitoring dust removal data of photovoltaic panels, characterized in that: The photovoltaic panel is connected to the electric control box via the space plug on the right.

7. The dust removal gel according to claim 5 is used in a method for monitoring dust removal data of photovoltaic panels, characterized in that: The electric control box is equipped with a solar charge controller, surge protector, relay, battery and wireless communication module. The solar charge controller has a display screen, the battery model is 12 V, 9 Ah, and the wireless module has an antenna and a green indicator light.

8. The dust removal gel according to claim 5 is used in a method for monitoring dust removal data of photovoltaic panels, characterized in that: In step S2, the relay switch is turned on first, the photovoltaic data monitoring system in the electric control box is started, and the working voltage and current parameters of the photovoltaic panel are monitored in real time through the display screen of the solar charging controller.

9. The dust removal gel according to claim 5 is used in a method for monitoring dust removal data of photovoltaic panels, characterized in that: In step S4, the wireless communication module encodes and processes the data and then sends it, and the voltage and current data parameters are checked on the mobile phone to remotely monitor the operating status of the photovoltaic panel; In step S4, the photovoltaic data monitoring system predicts the maximum adsorption capacity of the gel coating based on the Langmuir adsorption model and determines whether the gel coating has reached adsorption saturation.

10. The dust removal gel according to claim 5 is used in a method for monitoring dust removal data of photovoltaic panels, characterized in that: In step S4, the three-dimensional network structure of the dust removal gel solution gives its surface abundant micro depressions and protrusions, which provide a large number of embedding sites for dust particles, significantly increase the contact area of ​​physical adsorption, and thus significantly improve the adsorption performance; the gel film-dust complex formed by the dust removal gel solution on the surface of the photovoltaic panel in step S4 is integrated and easy to handle, and there is no residue on the photovoltaic panel.

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