Device for preventing corrosion of transformer fins

By designing a device with a telescopic bracket and universal joint assembly, combined with a hand drill, anti-corrosion spraying, and dust removal functions, the problem of grinding transformer fins in a narrow and complex space is solved, achieving efficient anti-corrosion treatment, avoiding fin damage, saving costs, and extending service life.

CN224554128UActive Publication Date: 2026-07-24SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP
Filing Date
2025-08-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies cannot effectively grind transformer fins in confined spaces, deep cavities, or other complex environments. Furthermore, traditional methods can easily damage the fins, leading to severe corrosion that requires significant manpower and resources for repair or replacement, thus impacting power supply and oil well production.

Method used

Design a device that includes a telescopic bracket, universal joint assembly, handle, electric drill, connecting rod and polishing head, combined with universal wheels and anti-corrosion spraying and dust removal components, to achieve flexible adjustment and efficient polishing, avoid fin damage, and perform anti-corrosion coating spraying.

Benefits of technology

It enables efficient fin grinding in complex spaces, avoiding damage, reducing downtime losses, improving work efficiency, extending fin life, and saving manpower and resources, thus achieving good economic and social benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for transformer fin anticorrosion, it includes base, telescopic support, universal joint assembly, handle, electric drill, connecting rod and polishing tap. The device for transformer fin anticorrosion can flexibly adjust the height and angle of polishing tap through setting telescopic support and universal joint assembly, easily access the narrow and deep complex space inside the fin, solve the problem of polishing the transformer fin in the narrow, deep cavity and other complex space. And cooperate the speed control of electric drill, while efficiently removing the corrosion layer on the surface of fin, can effectively avoid the damage to the thin and brittle fin due to improper hardness or speed of tool. At the same time, through the design of universal wheel, the device can move flexibly in the complex offshore platform environment. Compared with the traditional tool and manual operation, the device can save a lot of manpower and time cost, prolong the service life of transformer fin, reduce the production loss caused by fin corrosion.
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Description

Technical Field

[0001] This utility model relates to the field of transformer fin corrosion protection, and in particular to a device for transformer fin corrosion protection. Background Technology

[0002] The main power supply for offshore platforms and the power supply for ESPs (Electric Submersible Pumps) in oil wells mostly uses oil-immersed power transformers. However, the heat dissipation fins of these transformers are highly susceptible to corrosion. Severe corrosion can lead to power outages or even the shutdown of individual oil wells, resulting in significant production losses. Furthermore, repairing or replacing corroded transformer fins requires substantial manpower, financial resources, and materials. To address the fin corrosion problem, the primary focus is on solving the inability to prevent transformer fin corrosion. Due to the confined space, depth, and complex structure, coupled with the thin and fragile nature of the fins, ordinary grinding tools cannot be used for polishing.

[0003] In the past, when encountering transformer fin corrosion problems, the common method used was to directly apply paint because it was impossible to polish the surface. However, this method would quickly lead to paint peeling and corrosion failure. Therefore, there is an urgent need for a device that can effectively polish transformer fins in confined, deep, and other complex spaces without damaging the fins. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for corrosion protection of transformer fins.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a device for corrosion prevention of transformer fins, which includes a base, a telescopic bracket, a universal joint assembly, a handle, an electric drill, a connecting rod, and a polishing head;

[0006] The base is provided with several universal wheels at its lower end. The two ends of the telescopic bracket are respectively connected to the base and the universal joint assembly. The handle is connected to the universal joint assembly. The electric drill is mounted on the handle. The connecting rod is connected to the output end of the electric drill. The polishing head is connected to the connecting rod. The electric drill is used to drive the polishing head to rotate. The polishing head is used to polish the transformer fins.

[0007] In some embodiments, the telescopic bracket includes a first telescopic rod connected to the base and a second telescopic rod movably connected to the first telescopic rod, wherein the first telescopic rod is provided with a telescopic locking member for fixing the relative position of the second telescopic rod.

[0008] In some embodiments, the universal joint assembly includes a lower fixing member, a lower locking member, a connecting block, an upper fixing member, and an upper locking member;

[0009] The lower fixing member is connected to the second telescopic rod and the connecting block respectively. The lower locking member is installed on the lower fixing member and is used to fix the position of the connecting block relative to the lower fixing member. The upper fixing member is connected to the connecting block and the handle respectively. The upper locking member is installed on the upper fixing member and is used to fix the position of the connecting block relative to the upper fixing member.

[0010] In some embodiments, the universal joint assembly further includes a locking member for securing the position of the handle relative to the upper fixing member.

[0011] In some embodiments, the polishing head is connected to the connecting rod by a clamp.

[0012] In some embodiments, the end of the connecting rod that is connected to the clamp is provided with a threaded portion.

[0013] In some embodiments, the device for transformer fin corrosion protection further includes an anti-corrosion spraying assembly, which includes a liquid storage tank, a liquid delivery pipe, and a spray nozzle. The liquid storage tank is mounted on the base, and the two ends of the liquid delivery pipe are respectively connected to the liquid storage tank and the spray nozzle. The spray nozzle is used to spray anti-corrosion coating onto the polished transformer fins.

[0014] In some embodiments, the handle is provided with a snap-fit ​​structure for securing the nozzle.

[0015] In some embodiments, the device for corrosion protection of transformer fins further includes a dust removal assembly, which includes a vacuum cleaner, a suction pipe, and a suction hood. The vacuum cleaner is mounted on the base, and the two ends of the suction pipe are respectively connected to the vacuum cleaner and the suction hood. The vacuum cleaner is used to remove dust generated during the polishing process.

[0016] In some embodiments, the caster wheel is provided with a locking device.

[0017] The present invention offers the following advantages: This device for transformer fin corrosion protection, through its retractable bracket combined with a universal joint assembly, allows for flexible adjustment of the height and angle of the grinding head, easily reaching into the narrow, deep, and complex spaces within the fins. This solves the problem of grinding transformer fins in confined, deep, and complex spaces. Furthermore, the adjustable speed of the electric drill effectively removes the corrosion layer from the fin surface while preventing damage to the thin and brittle fins due to improper tool hardness or speed. The universal wheel design also allows for flexible movement in complex offshore platform environments. Compared to traditional tools and manual operation, this device saves significant manpower and time costs, extends the service life of transformer fins, and reduces downtime losses caused by fin corrosion, resulting in substantial economic and social benefits. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a device for corrosion protection of transformer fins in some embodiments of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0022] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Please see Figure 1 and Figure 2This is a device for corrosion protection of transformer fins according to some embodiments of the present invention. It includes a base 1, a telescopic bracket 2, a universal joint assembly 3, a handle 4, a power drill 5, a connecting rod 6, and a polishing head 7. The lower end of the base 1 is provided with several universal wheels 11. The two ends of the telescopic bracket 2 are respectively connected to the base 1 and the universal joint assembly 3. The handle 4 is connected to the universal joint assembly 3. The power drill 5 is mounted on the handle 4. The connecting rod 6 is connected to the output end of the power drill 5. The polishing head 7 is connected to the connecting rod 6. The power drill 5 drives the polishing head 7 to rotate, and the polishing head 7 is used to polish the transformer fins.

[0024] In this embodiment, the base 1 is rectangular in shape and can be made of Q235 steel plate, with four casters 11 installed at its lower end. The end of the connecting rod 6 that connects to the electric drill 5 is hexagonal and connects to the output end of the electric drill 5. The length of the connecting rod 6 can be 120cm, 80cm, or 50cm, and the diameter can be 6mm or 8mm. The polishing head 7 can be a wire polishing head, with an outer diameter of 25mm, 38mm, 50mm, or 75mm and a thickness of 10mm or 20mm. The handle 4 has a diameter of 3mm. The specifications and dimensions of the above components can be adjusted according to the actual site conditions.

[0025] like Figure 1 As shown, the telescopic bracket 2 includes a first telescopic rod 21 connected to the base 1 and a second telescopic rod 22 movably connected to the first telescopic rod 21. The first telescopic rod 21 is provided with a telescopic locking member 23 for fixing the relative position of the second telescopic rod 22. Both the first telescopic rod 21 and the second telescopic rod 22 can be seamless steel pipes. The second telescopic rod 22 is inserted into the first telescopic rod 21. By sliding the first telescopic rod 21 and the second telescopic rod 22 relative to each other, the height of the bracket can be flexibly adjusted to meet the grinding requirements of fins of different heights. The telescopic locking member 23 can be a bolt, which is fixed by tightening the second telescopic rod 22 to ensure the stability of the structure after adjustment.

[0026] like Figure 2As shown, the universal joint assembly 3 includes a lower fixing member 31, a lower locking member 32, a connecting block 33, an upper fixing member 34, and an upper locking member 35. The lower fixing member 31 is connected to the second telescopic rod 22 and the connecting block 33. The lower locking member 32 is installed on the lower fixing member 31 and is used to fix the position of the connecting block 33 relative to the lower fixing member 31. The upper fixing member 34 is connected to the connecting block 33 and the handle 4. The upper locking member 35 is installed on the upper fixing member 34 and is used to fix the position of the connecting block 33 relative to the upper fixing member 34. The connecting block 33 can be rectangular in shape, and both the lower locking member 32 and the upper locking member 35 can be wing bolts. This structure allows the grinding head 7 to be adjusted in multiple dimensions. The movable connection and locking of the connecting block 33 with the lower fixing member 31 and the upper fixing member 34 can accurately fix the required angle and ensure the accuracy of the grinding operation.

[0027] The universal joint assembly 3 also includes a locking member 36 for fixing the position of the handle 4 relative to the upper fixing member 34. The locking member 36 may be a locking bolt, which can enhance the fixing effect of the handle 4 and prevent the handle 4 from shaking during operation, thus affecting the grinding accuracy.

[0028] Furthermore, the polishing head 7 is connected to the connecting rod 6 via a clamp 71, facilitating the replacement of different types of polishing heads 7 according to the characteristics of the fins and improving the versatility of the device. The end of the connecting rod 6 connected to the clamp 71 has a threaded portion; this threaded connection ensures a secure connection between the connecting rod 6 and the clamp 71, facilitates disassembly, and guarantees stable power transmission. In some other embodiments, the connecting rod 6 can be welded to the polishing head 7.

[0029] The caster wheel 11 is equipped with a locking device, which not only facilitates the flexible movement of the device within the work area, but also secures the device during operation, preventing displacement from affecting the work.

[0030] like Figure 1 As shown, the device for transformer fin corrosion protection also includes an anti-corrosion spraying assembly 8. The anti-corrosion spraying assembly 8 includes a storage tank 81, a delivery pipe 82, and a nozzle 83. The storage tank 81 is mounted on the base 1. The two ends of the delivery pipe 82 are connected to the storage tank 81 and the nozzle 83, respectively. The nozzle 83 is used to spray anti-corrosion coating onto the polished transformer fins. The storage tank 81 can be a stainless steel pressure tank, fixed to the base 1. The storage tank 81 stores the anti-corrosion coating, which can be a metal anti-corrosion paint. The storage tank 81 is also equipped with a pump to deliver the anti-corrosion coating to the nozzle. The delivery pipe 82 is a solvent-resistant rubber tube, and the nozzle 83 can be equipped with a flow regulating valve. This anti-corrosion spraying assembly 8 enables anti-corrosion spraying after polishing, reducing process connection time and improving the efficiency of anti-corrosion operations. The handle 4 is equipped with a buckle structure 41 for fixing the nozzle 83. During the sanding operation, the nozzle 83 can be fixed to prevent the nozzle 83 from shaking and interfering with the sanding. It can be removed when spraying, making the operation convenient.

[0031] The device for transformer fin corrosion protection also includes a dust removal assembly 9, which comprises a vacuum cleaner 91, a suction pipe 92, and a suction hood 93. The vacuum cleaner 91 is mounted on the base 1, and the two ends of the suction pipe 92 are connected to the vacuum cleaner 91 and the suction hood 93, respectively. The vacuum cleaner 91 is used to remove dust generated during the grinding process. The vacuum cleaner 91 can be an industrial vacuum cleaner, which is fixedly mounted on the base 1. The suction hood 93 can be a horn-shaped plastic cover. The vacuum cleaner 91 can promptly remove the dust generated during grinding, improve the working environment, protect the health of operators, and prevent dust from adhering to the fin surface and affecting the adhesion of the subsequent anti-corrosion coating.

[0032] The working principle of the device for transformer fin corrosion protection is as follows: Before operation, the device is moved to the side of the transformer fin using the casters 11 of the base 1, and the device is fixed by the locking device of the casters 11. According to the height of the fin, the relative positions of the first telescopic rod 21 and the second telescopic rod 22 of the telescopic bracket 2 are adjusted and fixed by the telescopic locking piece 23. The angle of the handle 4 is adjusted by using the lower fixing piece 31, connecting block 33, and upper fixing piece 34 of the universal joint assembly 3, so that the polishing head 7 is aligned with the part to be polished, and the positions of each component are fixed by the lower locking piece 32, upper locking piece 35 and locking piece 36. The electric drill 5 is started, and its output end drives the connecting rod 6 and the polishing head 7 to rotate. The operator holds the handle 4 to control the polishing head 7 to polish the fin. At the same time, the dust removal assembly 9 is started, the dust suction hood 93 is aligned with the polishing part, and the dust is sucked into the vacuum cleaner 91 through the dust suction pipe 92. After grinding, remove the nozzle 83 from the snap-fit ​​structure 41 of the handle 4, and use the liquid storage tank 81, infusion pipe 82 and nozzle 83 of the anti-corrosion spraying assembly 8 to spray anti-corrosion coating onto the ground fins to complete the entire anti-corrosion operation.

[0033] The beneficial effects of this device for transformer fin corrosion protection are:

[0034] Easy to move and fix: The 11-way casters with locking devices allow the device to move flexibly and be fixed stably in complex offshore platform environments, adapting to the needs of different operating positions.

[0035] Highly adaptable to space: The telescopic bracket 2, combined with the universal joint assembly 3, can flexibly adjust the height and angle of the polishing head 7, easily reaching into the narrow and deep complex space inside the fins, solving the problem of blind spots in the operation of traditional tools.

[0036] Fin protection is in place: The fixture 71 can be replaced with a suitable polishing head 7, and with the speed control of the electric drill 5, the corrosion layer on the fin surface can be removed efficiently, while effectively avoiding damage to the thin and brittle fins caused by improper tool hardness or speed.

[0037] Highly efficient integration of functions: It integrates grinding, anti-corrosion spraying, and dust removal functions. Anti-corrosion treatment can be carried out directly after grinding, reducing process changeover time. The dust removal function ensures the working environment and coating quality, greatly improving work efficiency.

[0038] Significant cost-effectiveness: Compared with traditional tools and manual operation, this device can save a lot of manpower and time costs, extend the service life of transformer fins, and reduce production losses caused by fin corrosion, thus having good economic and social benefits.

[0039] Understandably, the device for transformer fin corrosion protection provided by this utility model, through the combination of a telescopic bracket 2 and a universal joint assembly 3, allows for flexible adjustment of the height and angle of the grinding head 7, easily reaching into the narrow, deep, and complex spaces inside the fins, thus solving the problem of grinding transformer fins in confined, deep, and complex spaces. Furthermore, the adjustable speed of the electric drill 5 effectively removes the corrosion layer from the fin surface while preventing damage to the thin and brittle fins due to improper tool hardness or speed. The universal wheels 11 also allow for flexible movement in complex offshore platform environments. Compared to traditional tools and manual operation, this device saves significant manpower and time costs, extends the service life of transformer fins, and reduces production losses caused by fin corrosion, resulting in substantial economic and social benefits.

[0040] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A device for corrosion protection of transformer fins, characterized in that, Includes a base (1), a telescopic bracket (2), a universal joint assembly (3), a handle (4), a power drill (5), a connecting rod (6), and a polishing head (7); The base (1) is provided with several universal wheels (11) at its lower end. The two ends of the telescopic bracket (2) are respectively connected to the base (1) and the universal joint assembly (3). The handle (4) is connected to the universal joint assembly (3). The electric drill (5) is mounted on the handle (4). The connecting rod (6) is connected to the output end of the electric drill (5). The polishing head (7) is connected to the connecting rod (6). The electric drill (5) is used to drive the polishing head (7) to rotate. The polishing head (7) is used to polish the transformer fins.

2. The device for corrosion protection of transformer fins according to claim 1, characterized in that, The telescopic bracket (2) includes a first telescopic rod (21) connected to the base (1) and a second telescopic rod (22) movably connected to the first telescopic rod (21). The first telescopic rod (21) is provided with a telescopic locking member (23) for fixing the relative position of the second telescopic rod (22).

3. The device for corrosion protection of transformer fins according to claim 2, characterized in that, The universal joint assembly (3) includes a lower fixing member (31), a lower locking member (32), a connecting block (33), an upper fixing member (34), and an upper locking member (35); The lower fixing member (31) is connected to the second telescopic rod (22) and the connecting block (33) respectively. The lower locking member (32) is installed on the lower fixing member (31) and is used to fix the position of the connecting block (33) relative to the lower fixing member (31). The upper fixing member (34) is connected to the connecting block (33) and the handle (4) respectively. The upper locking member (35) is installed on the upper fixing member (34) and is used to fix the position of the connecting block (33) relative to the upper fixing member (34).

4. The device for corrosion protection of transformer fins according to claim 3, characterized in that, The universal joint assembly (3) also includes a locking member (36) for fixing the position of the handle (4) relative to the upper fixing member (34).

5. The device for corrosion protection of transformer fins according to claim 1, characterized in that, The polishing head (7) is connected to the connecting rod (6) by a clamp (71).

6. The device for corrosion protection of transformer fins according to claim 5, characterized in that, The end of the connecting rod (6) that connects to the clamp (71) is provided with a threaded part.

7. The device for corrosion protection of transformer fins according to claim 1, characterized in that, The device for anti-corrosion of transformer fins also includes an anti-corrosion spraying assembly (8), which includes a liquid storage tank (81), a liquid delivery pipe (82), and a spray nozzle (83). The liquid storage tank (81) is mounted on the base (1), and the two ends of the liquid delivery pipe (82) are respectively connected to the liquid storage tank (81) and the spray nozzle (83). The spray nozzle (83) is used to spray anti-corrosion coating on the polished transformer fins.

8. The device for corrosion protection of transformer fins according to claim 7, characterized in that, The handle (4) is provided with a snap-fit ​​structure (41) for fixing the nozzle (83).

9. The device for corrosion protection of transformer fins according to claim 1, characterized in that, The device for corrosion protection of transformer fins also includes a dust removal component (9), which includes a vacuum cleaner (91), a suction pipe (92), and a suction hood (93). The vacuum cleaner (91) is mounted on the base (1), and the two ends of the suction pipe (92) are respectively connected to the vacuum cleaner (91) and the suction hood (93). The vacuum cleaner (91) is used to extract the dust generated during the polishing process.

10. The device for corrosion protection of transformer fins according to claim 1, characterized in that, The universal wheel (11) is equipped with a locking device.