A corrosion inhibitor coating device for corrosion-proof pipe production
By combining three spray guns arranged in a circular pattern and a curved support plate with universal ball bearings, the problems of uneven coating and poor support adaptability in existing technologies are solved, achieving automated, uniform coating and efficient production.
Patent Information
- Application Number
- CN202522085061.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-28
AI Technical Summary
In existing technologies, manual brushing or roller coating is inefficient and results in poor coating uniformity. Furthermore, the traditional support wheel structure is complex and difficult to adapt to pipes of different diameters, affecting production efficiency and coating quality.
The coating device employs a three-spray gun surround distribution, combined with an arc-shaped support plate and a universal ball bearing guide device. The height of the support plate is adjusted by a telescopic cylinder to achieve stable support for pipes of different diameters. The coating is automatically delivered by a pump, and the pipes are moved manually or mechanically to achieve automated and uniform coating.
It achieves efficient and uniform coating coverage, adapts to pipes of different diameters, reduces labor intensity, improves production efficiency and coating quality, and reduces material waste.
Smart Images

Figure CN224672958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline production technology, specifically to a corrosion-resistant coating device for the production of corrosion-resistant pipelines. Background Technology
[0002] In the petroleum, chemical, and municipal construction industries, corrosion protection of metal pipelines is crucial, directly affecting their service life and safety. The anti-corrosion coating on the outer wall of the pipeline is a key barrier against corrosion. Currently, common methods for applying anti-corrosion agents to the outer wall of pipelines include manual brushing, roller coating, and mechanical spraying.
[0003] However, existing technologies have several shortcomings: First, manual brushing or roller coating is inefficient, results in poor coating uniformity and unstable quality, heavily relies on the skill level of the operators, and is labor-intensive. Second, stable support and precise positioning of the pipe during the spraying process is a challenge. Traditional support roller sets are complex in structure and difficult to adapt to pipes of different diameters, making adjustments inconvenient and affecting production efficiency and coating quality.
[0004] Therefore, there is an urgent need for an anti-corrosion coating device that can achieve automated and uniform coating, quickly adapt to pipes of different diameters, and ensure the stability of the pipes during the coating process. Utility Model Content
[0005] The purpose of this invention is to provide a corrosion-resistant coating device for the production of corrosion-resistant pipelines, in order to overcome the shortcomings of the above-mentioned technologies.
[0006] To achieve the above objectives, this utility model provides a corrosion-resistant coating device for anti-corrosion pipeline production, including an operating table with a coating device and a guiding device. The coating device includes a gantry frame, a storage tank, a pump body, and spray guns. The spray guns are fixedly installed on the inner side of the gantry frame, and there are three spray guns arranged in a 120-degree circle. The storage tank and the pump body are fixedly installed on the operating table, and the pump body is connected to the storage tank and the spray guns respectively through a delivery pipe. The guiding device includes two arc-shaped support plates located on the front and rear sides of the gantry frame. The left and right sides of the support plates are provided with flanges. A telescopic cylinder is bolted to the operating table, and the output end of the telescopic cylinder is connected to the flanges. The bottom surface of the support plate is connected to an arc-shaped carrier plate through a connecting rod. The arc-shaped carrier plate is provided with universal ball bearings, and the support plate is provided with a through channel for use with the universal ball bearings.
[0007] Preferably, the top surface of the universal ball bearing and the inner surface of the support plate are on the same arc surface.
[0008] Preferably, the operating table is provided with multiple evenly distributed mounting slots for use with mating bolts.
[0009] Preferably, a collection trough is provided on the operating table, and the collection trough is located directly below the gantry.
[0010] The beneficial effects of this utility model are: 1. By setting three spray guns distributed in a 120-degree ring, the spray guns can use a larger spray nozzle area, which can simultaneously and evenly spray the outer wall of the pipe at one time. Efficient and high-quality coating operation can be completed without rotating the pipe, effectively avoiding the problem of uneven coating.
[0011] 2. The guiding device adopts an arc-shaped support plate structure. According to the actual coated pipe specifications, the support plate and telescopic cylinder of the appropriate specifications are replaced. The height of the support plate is adjusted by the telescopic cylinder, thereby stably supporting pipes of different diameters and improving the versatility and adaptability of the equipment.
[0012] 3. The bottom surface of the support plate is equipped with universal ball bearings via an arc-shaped carrier plate, and the top surface of the universal ball bearings is flush with the inner side of the support plate. This allows the pipe to be stably supported on the support plate while enabling low-friction axial movement via the universal ball bearings, facilitating pipe passage and continuous operation, and ensuring the stability of the coating process.
[0013] 4. The device integrates support, guidance and spraying functions. It controls clamping with cylinders, automatically delivers paint through pumps, and moves pipelines manually or with external equipment, which is conducive to realizing assembly line operation. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of A in the middle.
[0016] In the diagram, 1. Operating table, 2. Gantry frame, 3. Storage tank, 4. Pump body, 5. Spray gun, 6. Delivery pipe, 7. Support plate, 8. Folded edge, 9. Bolt, 10. Telescopic cylinder, 11. Connecting rod, 12. Arc-shaped carrier plate, 13. Universal ball bearing, 14. Through channel, 15. Mounting slot, 16. Collection slot. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0018] Reference Figure 1-2 This embodiment provides a corrosion-resistant coating device for the production of corrosion-resistant pipes, including an operating table 1, on which a coating device and a guiding device are provided; The coating device includes a gantry frame 2, a storage tank 3, a pump body 4, and a spray gun 5. The spray gun 5 is fixedly installed on the inner side of the gantry frame 2. There are three spray guns 5, and they are arranged in a 120-degree circle. The storage tank 3 and the pump body 4 are fixedly installed on the operating table 1. The pump body 4 is connected to the storage tank 3 and the spray gun 5 through a delivery pipe 6. The guiding device includes two arc-shaped support plates 7, which are located on the front and rear sides of the gantry frame 2. The left and right sides of the support plates 7 are provided with flanges 8. The telescopic cylinder 10 is connected to the operating table 1 by bolts 9, and the output end of the telescopic cylinder 10 is connected to the flanges 8. The bottom surface of the support plates 7 is connected to the arc-shaped carrier plate 12 by connecting rods 11. The arc-shaped carrier plate 12 is provided with universal ball bearings 13, and the support plates 7 are provided with through channels 14 for use with the universal ball bearings 13.
[0019] The top surface of the universal ball bearing 13 and the inner surface of the support plate 7 are on the same arc surface, which can enable low-friction axial movement of the pipeline.
[0020] The control panel 1 is provided with multiple evenly distributed mounting slots 15 for use with mating bolts 9. When replacing the support plate 7 and telescopic cylinder 10, the appropriate mounting slot 15 can be selected for installation, thereby increasing the applicability of the equipment.
[0021] The operating table 1 is equipped with a collection tank 16, which is located directly below the gantry frame 2. The collection tank 16 can recover excess preservatives that drip down, reducing material waste, lowering production costs, and keeping the operating table 1 clean.
[0022] In use, the specifications of the support plate 7 and the telescopic cylinder 10 are first adjusted according to the diameter of the pipe to be coated, to a suitable distance for the pipe diameter. The pipe is then placed on the concave arc surface of one side of the support plate 7. The weight of the pipe itself is borne by the support plate 7 and the universal ball bearings 13. During the coating operation, the operator or machinery pushes the pipe along its axial direction. During the movement, the universal ball bearings 13 roll accordingly, greatly reducing the friction between the pipe and the support plate 7, allowing the pipe to pass smoothly through the gantry 2. When the pipe passes through the gantry 2, the pump 4 operates, pumping the corrosion inhibitor in the storage tank 3 through the delivery pipe 6 to three spray guns 5 arranged in a 120-degree ring. The spray guns 5 spray the corrosion inhibitor evenly onto the outer wall of the pipe. Due to the ring arrangement of the three spray guns 5, the sprayed corrosion inhibitor can fully cover the surface of the pipe, forming a uniform coating. The coated pipe is removed from the support plate 7 on the other side of the device. Excess corrosion inhibitor dripping during the spraying process will fall into the collection tank 16 on the operating table 1 for centralized recycling and disposal.
[0023] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. A corrosion-resistant coating device for producing corrosion-resistant pipes, comprising an operating table (1), characterized in that, The operating table (1) is equipped with a coating device and a guiding device; the coating device includes a gantry (2), a storage tank (3), a pump body (4), and a spray gun (5). The spray gun (5) is fixedly installed on the inner side of the gantry (2). There are three spray guns (5) and they are arranged in a 120-degree circle. The storage tank (3) and the pump body (4) are fixedly installed on the operating table (1). The pump body (4) is connected to the storage tank (3) and the spray gun (5) respectively through the delivery pipe (6). The guiding device includes two arc-shaped guides. The support plate (7) is located on the front and rear sides of the gantry frame (2); the left and right sides of the support plate (7) are provided with folded edges (8); the telescopic cylinder (10) is connected to the operating table (1) by bolts (9); the output end of the telescopic cylinder (10) is connected to the folded edge (8); the bottom surface of the support plate (7) is connected to the arc-shaped carrier plate (12) by connecting rods (11); the arc-shaped carrier plate (12) is provided with universal ball bearings (13); the support plate (7) is provided with a through channel (14) for use with universal ball bearings (13).
2. The anti-corrosion coating device for anti-corrosion pipeline production according to claim 1, characterized in that, The top surface of the universal ball bearing (13) and the inner surface of the support plate (7) are on the same arc surface.
3. The anti-corrosion coating device for anti-corrosion pipeline production according to claim 1, characterized in that, The control panel (1) is provided with multiple evenly distributed mounting slots (15) for use with mating bolts (9).
4. The anti-corrosion coating device for anti-corrosion pipeline production according to claim 1, characterized in that, The operating table (1) is equipped with a collection trough (16), which is located directly below the gantry frame (2).