Detection tool for corrosion condition of photovoltaic support and detection method thereof

Abstract

The invention relates to a tool and method for detecting the corrosion condition of a photovoltaic support, and the method comprises the steps: firstly, fixing the detection tool in a to-be-detected region of the photovoltaic support, and respectively adding an alkaline diffusion solution and a color developing agent into the to-be-detected region in a closed environment; finally, the detection tool is removed, whether a red area exists on the surface of the photovoltaic support detection area or not is judged, and if yes, the red area is regarded as a corrosion area. The result of the corrosion condition of the photovoltaic bracket measured by using the method is visual, a detector can judge the corrosion condition and the corrosion part only by observing whether the color of the surface of the detected photovoltaic bracket is changed or not by naked eyes, the detection difficulty is reduced, the operation steps are simple, and the detection convenience and flexibility are effectively improved. Besides, detection can be carried out for observation in the early corrosion stage of the photovoltaic support, a worker can carry out anti-corrosion reinforcement treatment on the photovoltaic support in advance according to a detection result to avoid repair difficulty caused by further serious corrosion of the photovoltaic support, and the economical efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to a detection tool and a detection method for corrosion of photovoltaic brackets. Background Art

[0002] Offshore photovoltaic power generation has the characteristics of high power generation, less land occupation, and easy integration with other industries. It is conducive to optimizing the energy consumption structure and has gradually become a hot project that energy investors are competing to participate in. Theoretically, the ocean area suitable for the development of offshore photovoltaics in my country is about 710,000 square kilometers, and the theoretical installation capacity will reach 70-100GW. Compared with land, the marine environment is complex and changeable. The load on the floating structure under the action of wind, waves and currents has increased sharply, and the system safety faces severe challenges. The combined effects of high temperature, high humidity, high salt fog, strong wind, strong waves and heavy precipitation on offshore photovoltaic brackets lead to corrosion of photovoltaic brackets and shortened service life. In order to protect photovoltaic brackets, cold galvanizing is usually used to form a uniform, dense and well-bonded zinc layer on the steel structure surface of the bracket. The electroplated zinc layer can be used as a sacrificial anode to provide long-lasting and effective electrochemical protection for the substrate. However, during transportation, installation and daily operation, the galvanized layer is easily corroded and scratched, and gradually loses its protective function.

[0003] In the operation and maintenance of photovoltaic stations, the corrosion of photovoltaic brackets is usually detected by visual methods, through naked eye observation, or by using drones with image recognition software to locate the corrosion points. The advantage of this type of method is that it can be checked on a large scale, but the corrosion points located in this way are basically at the mounting bolt holes of the components. At this time, the alloy material of the bracket has been severely corroded, and it is difficult to repair. In addition, it is impossible to detect scratches on the main structure of the bracket and the loss of the protective layer. Therefore, it is impossible to carry out anti-corrosion reinforcement treatment on the bracket in advance based on the test results, which affects safety and economy. Therefore, there is an urgent need for a simple and efficient technical means to detect the corrosion of photovoltaic components, so as to timely grasp the status of photovoltaic brackets, and then repair the corroded photovoltaic brackets in time. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a detection tool and a detection method for the corrosion of a photovoltaic bracket.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for detecting corrosion of a photovoltaic support comprises the following steps:

[0007] Step S1, fixing the detection tool on the area to be detected of the photovoltaic support, adding a diffusion solution to the area to be detected in a closed environment, wherein the diffusion solution is alkaline;

[0008] Step S2: Continue to add a color developer to the area to be detected. The color developer is used to dissolve the Zn in the diffusion solution. 2+ Complexation reaction occurs;

[0009] Step S3, remove the detection tool and determine whether there is a red area on the surface of the photovoltaic bracket detection area; if so, the red area is regarded as a corrosion area.

[0010] Further, the diffusion solution is an ammonia-ammonium chloride mixed solution or a sodium bicarbonate solution; and / or

[0011] The color developer is a diphenylthizone-carbon tetrachloride mixed solution.

[0012] To achieve the above object, the present invention adopts the following technical solutions:

[0013] A detection tool for corrosion of a photovoltaic support, comprising a body for fixed connection with the photovoltaic support, wherein the body is used to form a closed environment with a region to be detected of the photovoltaic support for implementing any one of the detection methods;

[0014] The main body is also provided with a first compartment for accommodating a diffusion solution and a second compartment for accommodating a color developer. The first compartment and the second compartment both have a sealed state and an open state for allowing the diffusion solution or the color developer to contact the surface of the photovoltaic support area to be detected.

[0015] Furthermore, the main body also includes a frame, which includes a top plate and side plates respectively installed on both sides of the top plate, and buckles are provided on the lower parts of the inner walls of the two side plates for movably connecting with the photovoltaic bracket.

[0016] Furthermore, the main body also includes a baffle symmetrically arranged based on the frame, which is used to enclose the frame and the photovoltaic bracket to be inspected area to form a closed environment required for detection.

[0017] Furthermore, the detection tool also includes a gasket, which is movably connected to the side plate, so that the first partition chamber and the second partition chamber are transformed from a sealed state to an open state.

[0018] Furthermore, the gasket includes a first gasket and a second gasket, and the first gasket and the second gasket are arranged at an interval.

[0019] Furthermore, the first gasket and the second gasket are arranged vertically and spaced apart;

[0020] The first partition chamber and the second partition chamber are separated or connected by the second gasket, and the first partition chamber and the photovoltaic support area to be detected are separated or connected by the first gasket.

[0021] Furthermore, the inner walls of the two side panels are also provided with a card block, and the card block abuts against the lower surface of the first gasket so that the first gasket is spaced apart from the photovoltaic bracket to be detected area.

[0022] Furthermore, both of the two side plates are provided with through holes, and the through holes are used for allowing the gasket to be movably connected to the side plates;

[0023] A rubber ring is installed in the through hole.

[0024] In summary, compared with the prior art, the present invention has at least the following beneficial effects:

[0025] The present invention relates to a detection tool for photovoltaic bracket corrosion and a detection method thereof. First, the detection tool is fixed to the photovoltaic bracket to be detected area, and an alkaline diffusion solution is added to the to-be-detected area in a closed environment; then, Zn that can be dissolved in the diffusion solution is continuously added to the to-be-detected area. 2+ The color developer that undergoes complexation reaction; finally, remove the detection tool to determine whether there is a red area on the surface of the photovoltaic bracket detection area. If there is, the red area is regarded as a corrosion area. The corrosion results of the photovoltaic bracket measured using this method are intuitive. The inspector can determine whether there is corrosion on the surface of the photovoltaic bracket and the specific location of the corrosion by simply observing with the naked eye whether the color of the photovoltaic bracket surface after the inspection changes. This reduces the difficulty of detection, and the operation steps are simple, which effectively improves the convenience and flexibility of the detection. In addition, detection and observation can be carried out in the early stage of photovoltaic bracket corrosion. According to the inspection results, the staff can carry out anti-corrosion reinforcement treatment on the photovoltaic bracket in advance to avoid further serious corrosion of the photovoltaic bracket, which will cause difficulties in repair, and effectively improve the economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A flow chart of a method for detecting corrosion of a photovoltaic support provided by the present invention.

[0028] Figure 2 A schematic diagram of the structure of a tool for detecting corrosion of a photovoltaic support provided in one embodiment of the present invention.

[0029] Figure 3 A schematic cross-sectional view of a tool for detecting corrosion of a photovoltaic support provided in one embodiment of the present invention.

[0030] Figure 4 A schematic diagram of the installation of a tool for detecting corrosion of a photovoltaic support provided in one embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. body; 11. first compartment; 12. second compartment; 13. frame; 131. top plate; 132. side plate; 1321. buckle; 1322. block; 1323. through hole; 14. baffle;

[0033] 2. gasket; 21. first gasket; 211. first handle; 22. second gasket; 221. second handle;

[0034] 3. Photovoltaic bracket. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] As attached Figure 1 As shown, a method for detecting corrosion of a photovoltaic support comprises the following steps:

[0039] Step S1, fixing the detection tool on the area to be detected of the photovoltaic support, adding a diffusion solution to the area to be detected in a closed environment, and the diffusion solution is alkaline;

[0040] Step S2: Continue to add a color developer to the area to be detected. The color developer is used to dissolve the Zn in the diffusion solution. 2+ Complexation reaction occurs;

[0041] Step S3, remove the detection tool and determine whether there is a red area on the surface of the photovoltaic bracket detection area;

[0042] If present, red areas are considered to be corroded areas.

[0043] Specifically, photovoltaic brackets usually use galvanizing to protect the iron and other metals inside the bracket. When the zinc coating is scratched, the zinc, iron and water in the section of the scratch surface begin to contact, which satisfies the conditions for contact corrosion and begins to corrode. Therefore, there will be a large amount of Zn on the surface of the corrosion. 2+ This application adopts the corresponding detection of Zn 2+ The color developer for Zn 2+ After the color developer is released, it is allowed to stand until it reacts with Zn 2+ The reaction is complete. If corrosion has occurred in the area to be tested, after removing the test tool and letting the test liquid flow out, the Zn 2+ During the test, the red complex produced by the complexation reaction with the color developer adheres to the test surface, allowing the tester to easily observe the corroded area of ​​the photovoltaic bracket; if the area to be tested is not corroded, the color of the photovoltaic bracket test surface will not change after the test tool is removed and the test liquid flows out. Furthermore, since the photovoltaic bracket is solid, when the surface is corroded, the Zn 2+ Accumulated in the corrosion area, these aggregated Zn 2+ It is difficult to evenly distribute the color developer in the detection process, resulting in the detection of color developer and Zn 2+ Contact is difficult, so in order to ensure Zn 2+ In order to fully contact the color developer and make the color development complete, it is necessary to release the diffusion solution and let it stand after fixing the detection tool and before releasing the color developer to allow Zn 2+ After being fully dissolved, it diffuses near the corrosion point to form a Zn 2+ distribution area to reduce the color developer and Zn 2+ The difficulty of contact between the developer and the corrosion site is thus 2+ Complexation reaction occurs to more comprehensively and accurately determine the true scope of the corrosion area. 2+The complexation reaction with the developer needs to be better under alkaline conditions, so the diffusion solution must also be alkaline, so that the mixed solution formed by the later released developer and the first released alkaline diffusion solution is an alkaline environment. The above detection method uses chemical methods to detect the corrosion of the photovoltaic bracket, and the results of the corrosion of the photovoltaic bracket are intuitive. The inspector can judge whether there is corrosion on the surface of the photovoltaic bracket and the specific location of the corrosion by simply observing with the naked eye whether the color of the photovoltaic bracket surface after the inspection changes, which reduces the difficulty of detection, and the operation steps are simple, which effectively improves the convenience and flexibility of the detection. In addition, detection and observation can be carried out in the early stage of corrosion of the photovoltaic bracket. According to the inspection results, the staff can carry out anti-corrosion reinforcement treatment on the photovoltaic bracket in advance to avoid further serious corrosion of the photovoltaic bracket and cause difficulties in repair, which effectively improves the economic efficiency.

[0044] In certain embodiments of the present invention, the diffusion solution is an ammonia-ammonium chloride mixed solution or a sodium bicarbonate solution.

[0045] In certain embodiments of the present invention, the developer is a diphenylthizone-carbon tetrachloride mixed solution, and the concentration is preferably 0.1%.

[0046] In addition to the above-mentioned detection method for photovoltaic bracket corrosion, the present invention also provides a detection tool based on the above-mentioned detection method for photovoltaic bracket corrosion. The detection tool corresponds to the steps of the above-mentioned detection method, and the detection tool described below and the detection method described above can be referenced to each other.

[0047] As attached Figure 2 and attached Figure 3 As shown, a detection tool for photovoltaic bracket corrosion includes a main body 1 for fixed connection with the photovoltaic bracket, the main body 1 is used to form a closed environment for implementing any detection method with the photovoltaic bracket to be detected area, and can make the color developer and Zn diffused in the alkaline diffusion solution 2+Fully react, effectively prevent the diffusion solution and the developer from leaking, and also avoid the interference of external factors on the detection process; the main body 1 is also provided with a first compartment 11 for accommodating the diffusion solution and a second compartment 12 for accommodating the developer, and the first compartment 11 and the second compartment 12 are both sealed and open so that the diffusion solution or the developer is in contact with the surface of the photovoltaic bracket to be detected. Specifically, when the detection tool is not in use, the first compartment 11 and the second compartment 12 are used to separate and seal the diffusion solution and the developer to prevent the diffusion solution and the developer from mixing or contacting with the outside world to change their composition and properties, resulting in inaccurate detection results; when the detection tool is in use, the openable design of the first compartment 11 and the second compartment 12 can realize the orderly progress of the detection process, that is, first open the first compartment 11 to release the diffusion solution, so that the diffusion solution is in contact with the surface of the photovoltaic bracket to be detected, and the Zn 2+ Fully diffuse and create an alkaline environment near the corrosion site, then open the second compartment 12 to release the developer and mix with the diffusion solution to contact the surface of the photovoltaic bracket to be detected, and then judge whether there is a corrosion area on the surface of the photovoltaic bracket based on whether a red complex is generated. The detection tool of the present application has a simple structure and low operation difficulty. It can effectively cooperate with the detection method of the present application to detect the corrosion of the photovoltaic bracket, and can be reused, effectively reducing the preparation cost and detection cost.

[0048] Furthermore, there are many ways to position the first compartment 11 and the second compartment 12. They can be arranged in parallel and separated in the body 1 horizontally to facilitate the processing of the detection tool and prevent the diffusion solution and the developer from interfering with each other. They can also be distributed vertically in the body 1, that is, the second compartment 12 is located above the first compartment 11, so as to consider the flow order of the liquid and facilitate the detection sequence. The second compartment 12 can also be located inside the first compartment 11 in a nested manner. In principle, the present invention has no special restrictions on the positional relationship between the first compartment 11 and the second compartment 12. Those skilled in the art can choose according to actual application conditions, product requirements, quality requirements, etc., and no limitation is made here.

[0049] In certain embodiments of the present invention, since photovoltaic brackets are usually arranged in a certain direction and angle and set at a fixed interval when used on site, the positions to be detected are mostly suspended in high places. Therefore, in order to facilitate installation and operation by inspectors, the main body 1 is made of hard plastic. The lighter weight makes it easier for inspectors to carry and position the detection tool at the position to be detected. At the same time, the hard plastic material will not react with the diffusion solution and the color developer, which can not only not affect the test results but also effectively maintain the structural integrity of the detection tool, and facilitate the subsequent reuse of the detection tool.

[0050] In certain embodiments of the present invention, as shown in the attached Figure 3 As shown, preferably, the volume of the first compartment 11 is larger than the volume of the second compartment 12, that is, the amount of the diffusion solution used is larger than the amount of the developer used, so as to fully dissolve and diffuse Zn 2+ , while eliminating the influence of acidic substances that may exist on the surface to be tested on the detection reaction.

[0051] In certain embodiments of the present invention, as shown in the attached Figure 2 As shown, the body 1 also includes a frame 13, which includes a top plate 131 and side plates 132 respectively installed on both sides of the top plate 131, and the lower parts of the inner walls of the two side plates 132 are provided with buckles 1321 for active connection with the photovoltaic bracket.

[0052] Specifically, photovoltaic brackets on the market usually use C-shaped steel. When installing the detection tool on the photovoltaic bracket, first align the frame 13 of the detection tool with the area to be detected of the photovoltaic bracket, ensure that the top plate 131 is located above the area to be detected, and the two side plates 132 are distributed on both sides of the C-port at both ends of the photovoltaic bracket. By using the slight deformation of the hard plastic material and adjusting the connection angle and position of the two side plates 132 and the photovoltaic bracket, the two side plates 132 can be better fitted to the C-ports on both sides of the photovoltaic bracket, respectively, to ensure the stability of the detection tool installed on the photovoltaic bracket. Among them, the inner wall surface of the side plate 132 is preferably frosted to increase friction and prevent the side plate 132 from shifting, thereby achieving the initial fixation of the detection tool and the photovoltaic bracket. Furthermore, the lower part of the inner wall of the two side panels 132 is provided with buckles 1321 to further fix the detection tool. When the side panels 132 are close to the C-ports on both sides of the photovoltaic bracket, the buckles 1321 are pressed or adjusted to clamp the edge of the C-port of the photovoltaic bracket. The elasticity of the buckles 1321 or the cooperation of the mechanical structure makes the detection tool more firmly fixed on the area to be detected of the photovoltaic bracket, avoiding the deviation or loosening of the detection tool during the detection process, resulting in leakage of the diffusion solution and the developer. Among them, the buckles 1321 can be in the form of protrusions on the inner walls of the side panels 132 on both sides, and can also be cantilever buckles, spring clip buckles, and direct plug-in buckles commonly seen on the market to cooperate with the clamping of the C-port edge to fix the detection tool, which is not limited here.

[0053] In certain embodiments of the present invention, as shown in the attached Figure 2 As shown, the body 1 also includes a baffle 14 symmetrically arranged based on the frame 13, which is used to enclose the frame 13 and the photovoltaic bracket to be detected to form a closed environment required for detection, and effectively prevent the diffusion solution and the developer from leaking. Preferably, the baffle 14 is made of transparent material. If there is Zn on the surface of the area to be detected 2+ , in the presence of diphenylthizone-carbon tetrachloride and Zn 2+During the complexation reaction, the mixed solution formed by the diffusion solution and the developer in the closed space will show obvious upper and lower stratification. The lower mixed solution will appear pink, and the upper carbon tetrachloride solution will change from green to brown. The baffle 14 is set to be transparent so that the inspector can easily observe whether the color of the mixed solution in the closed space changes, and can quickly and intuitively obtain a preliminary understanding of whether there is corrosion on the photovoltaic bracket.

[0054] In certain embodiments of the present invention, as shown in the attached Figure 2 As shown, the detection tool also includes a gasket 2, which is movably connected to the side plate 132, and the gasket 2 can be pulled out from the side plate 132. The first compartment 11 and the second compartment 12 are changed from a sealed state to an open state by operating the gasket 2 to control the release timing of the diffusion solution and the developer. In addition, the gasket 2 can effectively ensure that the first compartment 11 and the second compartment 12 are in a sealed and separated state when the detection device is not in use, so as to prevent the diffusion solution and the developer from leaking or being disturbed by external factors during storage.

[0055] In certain embodiments of the present invention, the gasket 2 includes a first gasket 21 and a second gasket 22, and the first gasket 21 and the second gasket 22 are arranged at intervals. Specifically, the first gasket 21 and the second gasket 22 can be arranged horizontally and spaced side by side so that the diffusion solution and the display agent are placed side by side. When in use, the first gasket 21 and the second gasket 22 are respectively drawn out from both sides in sequence; or, the first gasket 21 and the second gasket 22 are arranged spaced up and down so that the diffusion solution and the display agent are stored in the upper and lower layers. When in use, the first gasket 21 and the second gasket 22 can be drawn out from the same side in sequence or from both sides in sequence; or, when the first partition chamber 11 and the second partition chamber 12 are designed to be nested, the first gasket 21 and the second gasket 22 can also be arranged spaced up and down. When in use, the first gasket 21 and the second gasket 22 can be drawn out from the same side in sequence or from both sides in sequence, which is not limited here.

[0056] In certain embodiments of the present invention, as shown in the attached Figure 2 and attached Figure 3 As shown, when the first gasket 21 and the second gasket 22 are arranged to be spaced apart up and down so that the first compartment 11 and the second compartment 12 are distributed up and down, the first compartment 11 and the second compartment 12 are separated or connected by the second gasket 22, and the first compartment 11 and the area to be detected of the photovoltaic bracket are separated or connected by the first gasket 21. Specifically, when performing the detection, the first gasket 21 is firstly pulled out, so that the diffusion solution contained in the first compartment 11 can contact the surface to be detected of the photovoltaic bracket by its own gravity and fluidity, and after standing for a period of time, the diffusion effect of the diffusion solution can be fully exerted, and then the second gasket 22 is pulled out so that the color developer contained in the second compartment 12 falls into the diffusion solution in the first compartment 11 and mixes with it.

[0057] In certain embodiments of the present invention, as shown in the attached Figure 2 The first gasket 21 is provided with a first handle 211 at the extraction part, and the second gasket 22 is provided with a second handle 221 at the extraction part, which provide a fulcrum for extracting the first gasket 21 and the second gasket 22 .

[0058] In certain embodiments of the present invention, as shown in the attached Figure 3 As shown, if the first gasket 21 is in direct contact with and tightly fits the photovoltaic bracket to be detected area after the detection tool is installed, it may occur that during the process of extracting the first gasket 21, the entire detection tool is driven by the first gasket to move or shake due to factors such as friction, making it difficult to ensure the stability of the detection tool. Therefore, the inner walls of the two side panels 132 are also provided with a block 1322, and the block 1322 abuts against the lower surface of the first gasket 21 so that the first gasket 21 is spaced apart from the photovoltaic bracket to be detected area. When the first gasket 21 is extracted, the lower surface of the first gasket 21 slides outward from the upper surface of the block 1322, and the interference force on the detection tool is reduced, thereby ensuring the stability of the detection tool. In addition, the interval setting of the block 1322 can also prevent the corrosion layer or protective layer already existing on the surface of the photovoltaic bracket from being scratched due to friction and other conditions when the first gasket 21 is extracted, thereby interfering with the judgment of the original corrosion situation. In addition, the baffle 14 at least covers the block 1322 to prevent the diffusion solution from leaking from the lower side of the baffle 14 after the first gasket 21 is pulled out.

[0059] In certain embodiments of the present invention, as shown in the attached Figure 2 and attached Figure 3 As shown, both side plates 132 are provided with through holes 1323, and the through holes 1323 are used for the gasket 2 to be movably connected to the side plates 132. A rubber ring is installed in the through hole 1323, which can automatically close due to elasticity when the gasket 2 is pulled out to maintain the closed environment formed by the detection tool body 1 and the photovoltaic bracket to be detected area required for detection, and can also hold the gasket 2 when the detection tool is not in use, ensuring that the gasket 2 remains in a suitable position when not in use.

[0060] As attached Figure 4As shown, the specific use of the detection tool combined with the detection method of the present invention is as follows: first, the detection tool is fixed on the area to be detected of the photovoltaic bracket 3, wherein the two side panels 132 are tightly attached to the top and bottom of the C-port of the photovoltaic bracket 3, the buckle 1321 clamps the two sides of the photovoltaic bracket 3, and the lower edge of the baffle 14 (the dotted part in the figure) slightly exceeds the block 1322 and abuts against the photovoltaic bracket. At this time, the two side panels 132, the front and rear baffles 14 and the surface to be detected of the photovoltaic bracket 3 are enclosed together to form a closed environment required for detection; then, the first handle 211 is pulled outward to pull the first gasket 21 outward along the upper surface of the block 1322, at this time, the diffusion solution in the first compartment 11 is released on the surface to be detected of the photovoltaic bracket 3, after standing, the second handle 221 is pulled outward to pull the second gasket 22, so that the color developer in the second compartment 12 is released, and the color developer is allowed to stand to fully mix with the diffusion solution and then with the Zn on the surface to be detected. 2+ A complex reaction occurs; finally, the detection tool is removed to allow the mixed detection solution to flow out, and the detection personnel can observe whether there is a red area on the surface of the photovoltaic bracket 3 to be detected to determine whether the photovoltaic bracket is corroded and the degree of corrosion.

[0061] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A method for detecting corrosion of a photovoltaic support, characterized in that: The following steps are involved: Step S1, fixing the detection tool to the area to be detected of the photovoltaic support, adding a diffusion solution to the area to be detected in a closed environment, wherein the diffusion solution is alkaline; Step S2: Continue to add a color developer to the area to be detected. The color developer is used to dissolve the Zn in the diffusion solution. 2+ Complexation reaction occurs; Step S3, remove the detection tool and determine whether there is a red area on the surface of the photovoltaic bracket detection area; if so, the red area is regarded as a corrosion area.

2. The method for detecting corrosion of a photovoltaic support according to claim 1, characterized in that: The diffusion solution is an ammonia-ammonium chloride mixed solution or a sodium bicarbonate solution; and / or The color developer is a diphenylthizone-carbon tetrachloride mixed solution.

3. A detection tool for photovoltaic bracket corrosion, characterized in that: It comprises a body for being fixedly connected to a photovoltaic support, wherein the body is used to form a closed environment with the photovoltaic support to be detected area for implementing the detection method according to any one of claims 1 to 2; The main body is also provided with a first compartment for accommodating a diffusion solution and a second compartment for accommodating a color developer. The first compartment and the second compartment both have a sealed state and an open state for allowing the diffusion solution or the color developer to contact the surface of the photovoltaic support area to be detected.

4. The detection tool for photovoltaic support corrosion as claimed in claim 3, characterized in that: The body also includes a frame, which includes a top plate and side plates respectively installed on both sides of the top plate, and buckles are provided at the lower parts of the inner walls of the two side plates for active connection with the photovoltaic bracket.

5. The detection tool for photovoltaic support corrosion as claimed in claim 4, characterized in that: The main body also includes a baffle symmetrically arranged based on the frame, which is used to enclose the frame and the photovoltaic support area to be detected to form a closed environment required for detection.

6. The detection tool for photovoltaic support corrosion as claimed in claim 4, characterized in that: The detection tool also includes a gasket, which is movably connected to the side plate to change the first partition chamber and the second partition chamber from a sealed state to an open state.

7. The detection tool for photovoltaic support corrosion as claimed in claim 6, characterized in that: The gasket includes a first gasket and a second gasket, and the first gasket and the second gasket are arranged at an interval.

8. The detection tool for photovoltaic support corrosion as claimed in claim 7, characterized in that: The first gasket and the second gasket are arranged vertically and spaced apart; The first partition chamber and the second partition chamber are separated or connected by the second gasket, and the first partition chamber and the photovoltaic support area to be detected are separated or connected by the first gasket.

9. The detection tool for photovoltaic support corrosion as claimed in claim 8, characterized in that: The inner walls of the two side panels are also provided with a card block, and the card block abuts against the lower surface of the first gasket so that the first gasket is spaced apart from the photovoltaic bracket to be detected area.

10. The detection tool for photovoltaic support corrosion according to claim 6, characterized in that: The two side plates are each provided with a through hole, and the through hole is used for allowing the gasket to be movably connected to the side plate; A rubber ring is installed in the through hole.

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