Leakage stopping tool and method for leakage of transformer substation equipment

Abstract

The invention discloses a leaking stoppage tool and method for leakage of substation equipment, the leaking stoppage tool comprises a leaking stoppage top cover screwdriver and a conical cover, and the leaking stoppage method comprises the following steps: S1, determining the position of a leakage point; s2, the surfaces of the leakage points are treated; s3, the size of the leakage point is evaluated, if the area of the leakage point is within the radius range of 0-10 mm, the next step is executed, and if the area of the leakage point exceeds the radius range of 0-10 mm, a large-area leakage point leaking stoppage method is adopted; s4, finishing by adopting a three-layer treatment mode; s5, if the area of the leakage point is located at the edge of the radius range of 0-10 mm, the third-layer treatment step is repeated; s6, performing beauty protection treatment; the plugging tool does not need a clamp, binding and welding in the using process, and the application range is wide; according to the plugging method, the leakage points in the specific range are plugged, the reliable plugging effect is ensured, meanwhile, the plugging method is short in consumed time, the operation process is simple and not tedious, most efficient plugging is achieved in the shortest time, and the plugging work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of substation equipment maintenance technology, and in particular to leak-stopping tools and methods for substation equipment leakage. Background Technology

[0002] Substation primary equipment refers to the main electrical equipment that directly participates in the production, transformation, transmission, distribution, and use of electrical energy. Leakage prevention mainly focuses on equipment containing sealing media. The main leakage points are easily aging components, welds, sealing rings, valves, flanges, and pinholes, pores, and cracks caused by fluid media erosion and cavitation. Among these, transformer oil leakage is very common, which can cause environmental pollution or even fire or insulation failure. SF6 circuit breaker gas leakage is even more serious, directly affecting arc extinguishing capability. A gas leak in one chamber of GIS equipment may lead to the shutdown of the entire section, causing a long-term power outage. Equipment leakage not only causes medium loss, environmental pollution, and increased maintenance costs, but may also seriously affect the insulation performance, heat dissipation capacity, or arc extinguishing capability of the equipment, and even cause serious accidents such as fire, explosion, and equipment shutdown.

[0003] Therefore, equipment leak sealing is crucial. Currently, live leak sealing technology in the power industry is based on clamp injection, supplemented by steel strapping and welding, covering diverse scenarios from nuclear power GIS to low-pressure water pipes. However, the main shortcomings of existing technologies are:

[0004] ① There are difficulties in fixture design: the fixtures have poor adaptability, and irregular parts such as flanges and elbows require custom-made fixtures. The dimensional accuracy requirements are extremely high. For example, the fitting gap needs to be controlled within 0.1-0.3mm. Measurement errors can easily lead to sealing failure.

[0005] ②Limited performance of sealant: In high temperature and high pressure scenarios, such as main steam pipelines >500℃, sealants that can withstand extreme working conditions are required. Existing materials are prone to aging and failure when the temperature exceeds 600℃. Leaks require a special corrosion-resistant sealant, but it is easily dispersed by high-pressure gas before curing.

[0006] ③ Dynamic defects are difficult to handle: crack extension, corrosion thinning, or vibration areas, such as valve stuffing box leaks, may accelerate structural damage, violating the "three no-plugging" principle (extended cracks, severely thinned areas, and vibration areas should not be plugged). Summary of the Invention

[0007] To overcome the above problems, the purpose of this invention is to provide a leak-sealing tool and method for substation equipment leakage. Unlike other pressurized leak-sealing technologies, this tool requires no clamps, binding, or welding during use, making it suitable for operations in fire-prone areas and applicable to a wide range of situations. The leak-sealing method involves placing a special leak-sealing adhesive rod inside a conical cap using a leak-sealing top cap screwdriver. After the adhesive rod cures, a cold welding flux is used for sealing. This method seals leaks within a specific range, ensuring reliable sealing results. Furthermore, this method is quick and simple to operate, achieving the most efficient leak sealing in the shortest time and improving the efficiency of leak-sealing work.

[0008] The technical solution adopted in this invention is:

[0009] Leak-stopping tools for substation equipment leakage include a leak-stopping top cover screwdriver and a conical cap. The leak-stopping top cover screwdriver consists of an operating handle and a circular pressure cap end. The circular pressure cap end has a conical hollow structure and is welded to the end of the operating handle. The conical cap has a conical hollow structure.

[0010] As a further description of the invention, the conical cap is made of metal.

[0011] As a further description of the invention, the conical cover is made of Q235 carbon steel.

[0012] As a further description of the present invention, the pressure application area of ​​the circular pressure cap end is greater than the coverage area of ​​the conical cap.

[0013] The method for sealing leaks in substation equipment using the above-mentioned leak-sealing tools includes the following steps:

[0014] S1: Determining the location of the leak;

[0015] S2: Treat the surface of the leak point;

[0016] S3: Assess the size of the leak. If the area of ​​the leak is within the radius of 0-10mm, proceed to the next step. If the area of ​​the leak exceeds the radius of 0-10mm, use the large-area leak sealing method.

[0017] S4: Leakage sealing for leakage points within a radius of 0-10mm is completed using a three-layer treatment method;

[0018] S41: First layer of treatment, take out the special glue stick for sealing the leak. The special glue stick for sealing the leak includes an inner core and an outer skin. The inner core and the outer skin are two different colored materials. Cut off the required amount according to the size of the leak point. Directly knead the cut inner core and outer skin of the glue stick by hand until they are uniformly colored. Stop kneading when you feel the glue stick start to heat up.

[0019] S42: Place the kneaded glue stick into the conical cap, apply pressure to the top of the conical cap using a leak-stopping cap screwdriver, and press vertically at the leak point for 10-20 minutes;

[0020] S43: Remove the pressure applied to the screwdriver used to seal the leak, and leave the conical cap and glue stick at the location of the leak;

[0021] S44: Second layer treatment. Take out the special glue stick for sealing again, cut off the required amount, knead until it starts to heat up, and press it directly with your hands from the outermost part of the first layer treatment inward to cover the first layer. The thickness of the covering is 0.5-1cm, and the final shape is high in the middle and low around the edges.

[0022] S45: Sand the surface after the second layer of treatment to make it rough and enhance the adhesion strength.

[0023] S46: Third layer treatment: Apply cold soldering flux to cover the surface after the second layer treatment again, wait for curing to complete, and ensure successful leak sealing;

[0024] S5: If the area of ​​the leak point is at the edge of a radius of 0-10mm, repeat the third layer treatment step of S46 1-3 times to ensure successful leak sealing.

[0025] S6: Aesthetic protection treatment.

[0026] As a further description of the present invention, the specific steps for determining the location of the leakage point in S1 are as follows:

[0027] S11: Determine the equipment attribute at the leak point, whether it is an oil leaking device or an air leaking device;

[0028] S12: If it is an oil leaking device, use the oil leaking device seepage point detection method to determine the location of the leak, including visual inspection, soapy water inspection, or infrared thermal imager inspection.

[0029] S13: If it is a leaking device, use the leak detection method to determine the location of the leak, including visual inspection, plastic bag inspection, leak detector inspection, soap and water inspection, or infrared thermal imager inspection.

[0030] As a further description of the present invention, the specific steps for treating the surface of the leakage point in S2 are as follows:

[0031] S21: Using a grinder, sandpaper, or file, grind the edge of the identified leak point and extend outwards for 5cm to remove surface contaminants, including coatings, oil, or oxide layers.

[0032] S22: Clean the leaking area with clean water and use an absorbent cloth to remove excess water.

[0033] As a further description of the present invention, the processing step of using cold welding flux in S46 is as follows:

[0034] Mix the cold welding flux evenly to the same color according to the ratio, apply it to the construction surface, that is, start from the outermost side of the second layer and work inwards, directly press and cover the second layer with your hands to a thickness of 0.5cm.

[0035] As a further description of the present invention, the cold welding flux is a paste-like two-component reactive curable polymer material that forms a high-hardness adhesive after curing at room temperature. The workable time is 10-60 minutes, the curing time is 3-24 hours, the compressive strength after curing is 80-200MPa, the tensile strength is 27-80MPa, and the temperature resistance range covers -250℃ to 550℃.

[0036] For leaking equipment, the mixing ratio of the cold welding flux used is A:B = 3:1.

[0037] For equipment with oil leaks, the mixing ratio of the cold welding flux used is A:B=2:1.

[0038] As a further description of the present invention, the specific steps of the aesthetic protection process in S6 are as follows:

[0039] S61: After the leak is successfully sealed, grind the construction surface smooth and flat, and then use tin foil to flatly stick the entire construction surface for UV protection.

[0040] S62: Align the paint with the color of the equipment within the color difference range of the surface to be painted, and maintain color consistency.

[0041] The beneficial effects of this invention are:

[0042] This invention relates to a leak-sealing tool for substation equipment. The tool includes a leak-sealing top cover screwdriver and a conical cap. In use, a glue stick is placed through the conical cap, and the leak-sealing top cover screwdriver is used to apply vertical force to seal the leak. The circular pressure top cover end of the tool has a conical hollow structure that matches the structure of the conical cap. The operating handle is connected to the circular pressure top cover end. In actual use, pressure is applied through the operating handle to ensure that the force applied to the conical cap is evenly distributed on the conical cap, achieving reliable and effective leak sealing.

[0043] This invention discloses a method for sealing leaks in substation equipment using a leak-sealing tool. Different methods are selected to determine the location of leak points for different substation equipment. Based on the size of the leak point area, a three-layer treatment approach is used to seal leak points within a radius of 0-10mm, ensuring reliable sealing results. The entire sealing method involves placing a special leak-sealing adhesive stick inside a conical cap using a leak-sealing top cap screwdriver. After the adhesive stick cures, a cold welding flux is used for sealing. This method seals leak points within a specific range, ensuring reliable sealing results. Furthermore, this method is quick, simple, and efficient, achieving the most efficient leak sealing in the shortest time, thus improving the efficiency of leak sealing work. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the leak-stopping top cover screwdriver structure of the leak-stopping tool for substation equipment leakage proposed in this invention;

[0045] Figure 2 This is a schematic diagram of the conical cover structure of the leak-sealing tool for substation equipment leakage proposed in this invention;

[0046] Figure 3 This is a flowchart of the method for sealing leaks in substation equipment using a sealing tool, as proposed in this invention.

[0047] Explanation of reference numerals in the attached figures

[0048] 1- Leak-stopping cap screwdriver,

[0049] 11-Operating handle,

[0050] 12- Circular pressure cap end,

[0051] 2- Conical lid. Detailed Implementation

[0052] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0054] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0055] This invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0056] Furthermore, in the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] like Figures 1-3 As shown, it illustrates a specific embodiment of the present invention:

[0059] Example 1

[0060] Leak-stopping tools for substation equipment leakage include a leak-stopping top cover screwdriver 1 and a conical cover 2. The leak-stopping top cover screwdriver 1 consists of an operating handle 11 and a circular pressure top cover end 12. The circular pressure top cover end 12 is a conical hollow structure and is welded to the end of the operating handle 11. The conical cover 2 is a conical hollow structure.

[0061] In this embodiment, as Figure 1 , Figure 2 As shown, Figure 1 Figure a shows the front view of the leak-sealing top cover screwdriver 1, and Figure b shows the cross-sectional view of the front. Figure 2This is a front view of the conical cap. In actual use, the sealing tool involves placing a glue stick on the conical cap 2 and applying vertical force with the sealing cap screwdriver 1 to seal the leak. The circular pressure cap end 12, which applies pressure, has a conical hollow structure that matches the structure of the conical cap 2. The operating handle 11 is connected to the circular pressure cap end 12. In actual use, pressure is applied through the operating handle 11 to ensure that the force applied to the conical cap 2 is evenly distributed on the conical cap 2, achieving reliable and effective leak sealing. The process of using this sealing tool is simple and easy for workers to carry at the actual site of the substation, thereby improving work efficiency.

[0062] Example 2

[0063] Specifically, the conical cover 2 is made of metal.

[0064] In this embodiment, the conical cover 2 is a consumable in the sealing of substation equipment. It needs to be placed at the leakage point of the equipment. It is made of metal material, has high strength and hardness, and can withstand huge pressure, gravity and impact without easily deforming or breaking, so as to ensure that the equipment does not leak again after sealing.

[0065] Specifically, the conical cover 2 is made of Q235 carbon steel.

[0066] In this embodiment, Q235 carbon steel has a high elongation, enabling it to undergo significant plastic deformation without fracturing. It also possesses a certain degree of toughness, allowing it to absorb some impact energy. Furthermore, it has moderate strength and good overall mechanical properties, with a yield strength of 235 MPa and a tensile strength of approximately 375-500 MPa. Under the pressure of substation equipment, the pressure at the leakage point is less than this strength, thus fully capable of withstanding the pressure of the substation equipment.

[0067] Specifically, the pressure application area of ​​the circular pressure cap end 12 is greater than the coverage area of ​​the conical cap 2.

[0068] In this embodiment, the area where pressure is applied is larger than the area of ​​the conical cover 2, which can effectively fix the conical cover 2 at the leakage point and ensure uniform force distribution.

[0069] Example 3

[0070] The method for sealing leaks in substation equipment using the above-mentioned leak-sealing tools includes the following steps:

[0071] S1: Determining the location of the leak;

[0072] S2: Treat the surface of the leak point;

[0073] S3: Assess the size of the leak point. If the area of ​​the leak point is within the radius of 0-10mm, proceed to the next step. If the area of ​​the leak point exceeds the radius of 0-10mm, use the large-area leak point sealing method.

[0074] The method for sealing large-area leaks can be to first use a wooden plug or other tools to seal the leak, dividing the large leak into multiple smaller areas, and then using the same method to seal the leak, thereby completing the sealing of the entire leak.

[0075] S4: Leakage sealing for leakage points within a radius of 0-10mm, completed using a three-layer treatment method;

[0076] S41: First layer of treatment, take out the special glue stick for sealing the leak. The special glue stick for sealing the leak includes an inner core and an outer skin. The inner core and the outer skin are two different colored materials. Cut off the required amount according to the size of the leak point. Directly knead the cut inner core and outer skin of the glue stick by hand until they are uniformly colored. Stop kneading when you feel the glue stick start to heat up.

[0077] S42: Place the kneaded glue stick into the conical cap, apply pressure to the top of the conical cap using a leak-stopping cap screwdriver, and press vertically at the leak point for 10-20 minutes;

[0078] S43: Remove the pressure applied to the screwdriver used to seal the leak, and leave the conical cap and glue stick at the location of the leak;

[0079] S44: Second layer treatment. Take out the special glue stick for sealing again, cut off the required amount, knead until it starts to heat up, and press it directly with your hands from the outermost part of the first layer treatment inward to cover the first layer. The thickness of the covering is 0.5-1cm, and the final shape is high in the middle and low around the edges.

[0080] S45: Sand the surface after the second layer of treatment to make it rough and enhance the adhesion strength.

[0081] S46: Third layer treatment: Apply cold soldering flux to cover the surface after the second layer treatment again, wait for curing to complete, and ensure successful leak sealing;

[0082] S5: If the area of ​​the leak point is at the edge of a radius of 0-10mm, repeat the third layer treatment step of S46 1-3 times to ensure successful leak sealing.

[0083] S6: Aesthetic protection treatment.

[0084] In this embodiment, as Figure 3As shown, this method, in practical applications, needs to be implemented under power outage conditions. Depending on the size of the leak point, a three-layer treatment method is used to seal leaks within a 0-10mm radius, ensuring reliable sealing results. The entire sealing method involves placing a special sealing glue stick inside a conical cap using a sealing cap screwdriver, waiting for the glue stick to cure, and then sealing it with cold welding flux. This sealing method effectively seals leaks within a specific range, ensuring reliable sealing results. Furthermore, this method is quick, simple, and efficient, achieving the most efficient sealing in the shortest time and improving the overall efficiency of leak sealing work.

[0085] In this embodiment, the adhesive stick actually used is a steel-reinforced repair agent, which can fill and bond leaks, cracks, sand holes, defects, fractures, and other damage on metal materials such as steel, iron, and aluminum. It is mainly used to repair casting defects and fill cracks and holes. After curing, it is not easy to shrink or rust; the cured color is gray with a metallic luster.

[0086] The glue stick consists of a two-component, co-core stick shaped like modeling clay. It can be directly mixed by hand and used without dripping or flowing, making it as easy to handle as playing with modeling clay. It hardens in 3 minutes in summer, and the cured glue is as solid as steel, allowing it to be cut, sanded, and sprayed. The remaining portion can be stored for a long time, offering advantages such as strong adhesion and good heat dissipation.

[0087] In this embodiment, the leak-sealing method has the following advantages compared to existing leak-sealing methods:

[0088] (1) The success rate of leak sealing on the first attempt is as high as 98%;

[0089] (2) The shortest sealing time is 4-5 hours, provided the leak is small and can be sealed in one go;

[0090] (3) Using this method to seal leaks, the service life of the sealant can be guaranteed for 5-10 years;

[0091] (4) The leak sealing process is relatively simple and not complicated;

[0092] (5) Unlike other pressurized leak sealing technologies, it requires no clamps, no binding, no welding, no hot work, no heating, and cures at room temperature, making it especially suitable for operations in fire-prone areas.

[0093] Example 4

[0094] Specifically, the steps for determining the location of the leakage point in S1 are as follows:

[0095] S11: Determine the equipment attribute at the leak point, whether it is an oil leaking device or an air leaking device;

[0096] S12: If it is an oil leaking device, use the oil leaking device seepage point detection method to determine the location of the leak, including visual inspection, soapy water inspection, or infrared thermal imager inspection.

[0097] In this embodiment, the method for determining the leakage point of the oil-leaking equipment is as follows:

[0098] (1) Visual inspection: Check for oil stains or wet marks on the surface, wipe the oil-leaking area dry with a clean cloth, and observe whether oil seeps out again;

[0099] (2) Soap water test: Apply soap water to the suspected area and observe whether bubbles are produced (applicable to low pressure environment).

[0100] (3) Infrared thermal imager inspection: The infrared thermal imager captures abnormal temperature points. The temperature of the oil leak area may decrease due to the heat carried away by the oil flow. The detection effect is better at night or when the ambient temperature is stable.

[0101] S13: If it is a leaking device, use the leak detection method to determine the location of the leak, including visual inspection, plastic bag inspection, leak detector inspection, soap and water inspection, or infrared thermal imager inspection.

[0102] In this embodiment, the method for determining the leakage point of the leaking equipment is as follows:

[0103] (1) Visual inspection: Check for oil stains, frost or white powder (SF6 decomposition products) on the surface.

[0104] (2) Plastic bag inspection: Wrap the suspicious part with plastic film or special leak detection bag, let it stand for 2-4 hours, and observe whether there is white mist gas (SF6) inside the package.

[0105] (3) Leak detection: Use a leak detector to scan from top to bottom and from far to near;

[0106] (4) Soap water test: Spray a small amount of soap water and observe the bubbles;

[0107] (5) Infrared thermal imager inspection: The infrared thermal imager captures the temperature difference. The temperature at the leak point may be lower than the surrounding area because the gas expands and absorbs heat. The detection effect is better at night or when the ambient temperature is stable, but the sensitivity is lower than that of the gas detector.

[0108] In this embodiment, the method selects different leakage point determination methods according to the different equipment attributes of the substation equipment, which can accurately find the leakage point.

[0109] Specifically, the steps for treating the surface of the leakage point in S2 are as follows:

[0110] S21: Using a grinder, sandpaper, or file, grind the edge of the identified leak point and extend outwards for 5cm to remove surface contaminants, including coatings, oil, or oxide layers.

[0111] S22: Clean the leaking area with clean water and use an absorbent cloth to remove excess water.

[0112] In this embodiment, this step treats the surface of the leak point. This treatment method can accurately determine the location of the leak and carry out repair work. In the actual treatment process, the number of times the surface of the leak point needs to be cleaned depends on the site environment, and the surface is cleaned until it is clean and tidy.

[0113] Example 5

[0114] Specifically, the processing step of using cold welding flux in S46 is as follows:

[0115] Mix the cold welding flux evenly to the same color according to the ratio, apply it to the construction surface, that is, start from the outermost side of the second layer and work inwards, directly press and cover the second layer with your hands to a thickness of 0.5cm.

[0116] Specifically, the cold welding flux is a paste-like two-component reactive curable polymer material that forms a high-hardness adhesive after curing at room temperature. The workable time is 10-60 minutes, the curing time is 3-24 hours, the compressive strength after curing is 80-200MPa, the tensile strength is 27-80MPa, and the temperature resistance range covers -250℃ to 550℃.

[0117] For leaking equipment, the mixing ratio of the cold welding flux used is A:B = 3:1.

[0118] For equipment with oil leaks, the mixing ratio of the cold welding flux used is A:B=2:1.

[0119] In this embodiment, the process of using the cold welding flux is as follows:

[0120] Take equal amounts of components A and B and mix them thoroughly to achieve the same color. Ensure complete mixing; otherwise, the curing and bonding strength will be poor. Apply the mixture to the work surface. For a smooth and aesthetically pleasing finish, use a tool to smooth the surface. Allow it to cure; the curing time should be based on a curing time chart. If the mixed cold welding flux is not used within the designated working time, it will become ineffective. Therefore, in practice, after mixing, it is necessary to apply the flux promptly within the designated working time and then allow it to cure to effectively repair leaks.

[0121] Table 1 Curing Time Comparison Table

[0122]

[0123] In actual leak sealing work, when using cold welding flux, if emergency repairs are needed, the working surface can be intermittently heated. Tools such as heaters and hot air blowers can be used. Do not heat the colloid directly, and the heating temperature should not exceed 80℃. This can improve efficiency.

[0124] On the other hand, the cold welding flux hardens at low temperatures, making it difficult to stir. In this case, the entire container of components A and B can be soaked in water until it becomes soft and usable. If the work requires standing or lying down, the cold welding flux may easily drip during the sealing process. In this case, after mixing thoroughly, wait a short while until it is semi-cured before applying it. This ensures reliable operation and makes it easier for workers to complete the sealing work. In actual operation, the operating method can be flexibly applied according to the actual site conditions.

[0125] Example 6

[0126] Specifically, the aesthetic protection process in S6 involves the following steps:

[0127] S61: After the leak is successfully sealed, grind the construction surface smooth and flat, and then use tin foil to flatly stick the entire construction surface for UV protection.

[0128] S62: Align the paint with the color of the equipment within the color difference range of the surface to be painted, and maintain color consistency.

[0129] In this embodiment, an aesthetic protection treatment is used to further process the equipment after the leak is plugged. This ensures that the plugged part is consistent with the equipment, especially in outdoor environments, to prevent ultraviolet rays from damaging the plugged area and causing the plugged part to fail.

[0130] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

[0131] Many other changes and modifications can be made without departing from the concept and scope of this invention. It should be understood that this invention is not limited to the specific embodiments, and the scope of this invention is defined by the appended claims.

Claims

1. A leak-sealing tool for substation equipment leakage, characterized in that, The product includes a leak-stopping top cover screwdriver (1) and a conical cover (2). The leak-stopping top cover screwdriver (1) consists of an operating handle (11) and a circular pressure top cover end (12). The circular pressure top cover end (12) is a conical hollow structure and is welded to the end of the operating handle (11). The conical cover (2) is a conical hollow structure.

2. The leak-sealing tool for substation equipment leakage according to claim 1, characterized in that, The conical cap (2) is made of metal.

3. The leak-sealing tool for substation equipment leakage according to claim 2, characterized in that, The conical cap (2) is made of Q235 carbon steel.

4. The leak-sealing tool for substation equipment leakage according to claim 1, characterized in that, The pressure application area of ​​the circular pressure cap end (12) is greater than the coverage area of ​​the conical cap (2).

5. A method for sealing leaks in substation equipment using the sealing tool according to any one of claims 1-4, characterized in that, Includes the following steps: S1: Determining the location of the leak; S2: Treat the surface of the leak point; S3: Assess the size of the leak. If the area of ​​the leak is within the radius of 0-10mm, proceed to the next step. If the area of ​​the leak exceeds the radius of 0-10mm, use the large-area leak sealing method. S4: Leakage sealing for leakage points within a radius of 0-10mm is completed using a three-layer treatment method; S41: First layer of treatment, take out the special glue stick for sealing the leak. The special glue stick for sealing the leak includes an inner core and an outer skin. The inner core and the outer skin are two different colored materials. Cut off the required amount according to the size of the leak point. Directly knead the cut inner core and outer skin of the glue stick by hand until they are uniformly colored. Stop kneading when you feel the glue stick start to heat up. S42: Place the kneaded glue stick into the conical cap, apply pressure to the top of the conical cap using a leak-stopping cap screwdriver, and press vertically at the leak point for 10-20 minutes; S43: Remove the pressure applied to the screwdriver used to seal the leak, and leave the conical cap and glue stick at the location of the leak; S44: Second layer treatment. Take out the special glue stick for sealing again, cut off the required amount, knead until it starts to heat up, and press it directly with your hands from the outermost part of the first layer treatment inward to cover the first layer. The thickness of the covering is 0.5-1cm, and the final shape is high in the middle and low around the edges. S45: Sand the surface after the second layer of treatment to make it rough and enhance the adhesion strength. S46: Third layer treatment: Apply cold soldering flux to cover the surface after the second layer treatment again, wait for curing to complete, and ensure successful leak sealing; S5: If the area of ​​the leak point is at the edge of a radius of 0-10mm, repeat the third layer treatment step of S46 1-3 times to ensure successful leak sealing. S6: Aesthetic protection treatment.

6. The method for sealing leaks in substation equipment using the leak-sealing tool as described in claim 5, characterized in that, The specific steps for determining the location of the leakage point in S1 are as follows: S11: Determine the equipment attribute at the leak point, whether it is an oil leaking device or an air leaking device; S12: If it is an oil leaking device, use the oil leaking device seepage point detection method to determine the location of the leak, including visual inspection, soapy water inspection, or infrared thermal imager inspection. S13: If it is a leaking device, use the leak detection method to determine the location of the leak, including visual inspection, plastic bag inspection, leak detector inspection, soap and water inspection, or infrared thermal imager inspection.

7. The method for sealing leaks in substation equipment using the leak-sealing tool as described in claim 5, characterized in that, The specific steps for treating the surface of the leakage point in S2 are as follows: S21: Using a grinder, sandpaper, or file, grind the edge of the identified leak point and extend outwards for 5cm to remove surface contaminants, including coatings, oil, or oxide layers. S22: Clean the leaking area with clean water and use an absorbent cloth to remove excess water.

8. The method for sealing leaks in substation equipment using the leak-sealing tool as described in claim 5, characterized in that, The processing steps for S46 using cold welding flux are as follows: Mix the cold welding flux evenly to the same color according to the ratio, apply it to the construction surface, that is, start from the outermost side of the second layer and work inwards, directly press and cover the second layer with your hands to a thickness of 0.5cm.

9. The method for sealing leaks in substation equipment using the leak-sealing tool as described in claim 8, characterized in that, The cold welding flux is a paste-like two-component reactive curable polymer material. After curing at room temperature, it forms a high-hardness adhesive. The working time is 10-60 minutes, the curing time is 3-24 hours, the compressive strength after curing is 80-200MPa, the tensile strength is 27-80MPa, and the temperature resistance range covers -250℃ to 550℃. For leaking equipment, the mixing ratio of the cold welding flux used is A:B = 3:

1. For equipment with oil leaks, the mixing ratio of the cold welding flux used is A:B=2:

1.

10. The method for sealing leaks in substation equipment using the leak-sealing tool as described in claim 5, characterized in that, The specific steps of the aesthetic protection process in S6 are as follows: S61: After the leak is successfully sealed, grind the construction surface smooth and flat, and then use tin foil to flatly stick the entire construction surface for UV protection. S62: Align the paint with the color of the equipment within the color difference range of the surface to be painted, and maintain color consistency.

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