Novel steel pipe with anti-corrosion and wear-resistant functions

Abstract

The utility model discloses a novel steel pipe with anti-corrosion and wear-resistant functions, which relates to the technical field of steel pipes and comprises a steel pipe base layer. The anti-corrosion and wear-resistant functional layer is composed of an epoxy resin transition layer, a polyurethane middle buffer layer, a ceramic epoxy composite coating and an ultra-high molecular weight polyethylene lining layer; the corrosion-resistant and wear-resistant functional layer composed of the epoxy resin transition layer, the polyurethane middle buffer layer, the ceramic epoxy composite coating and the ultra-high molecular weight polyethylene lining layer is arranged in the steel pipe base layer, and the epoxy resin transition layer can enhance the adhesive force between the steel pipe base layer and the inner coating; the polyurethane middle buffer layer can buffer impact force brought by medium flowing, the ceramic epoxy composite coating can effectively resist abrasion by means of the high hardness characteristic of ceramic, and the ultra-high molecular weight polyethylene lining layer has excellent corrosion resistance and self-lubricating performance, so that a multi-layer protection structure is formed, and the corrosion resistance and abrasion resistance of the steel pipe are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe technology, and in particular to a new type of steel pipe with anti-corrosion and wear-resistant functions. Background Technology

[0002] Steel pipes are long, hollow steel pipes widely used in industry and construction. They come in various materials, commonly including carbon steel and alloy steel, and are characterized by high strength, good toughness, and strong pressure resistance. They can be used to transport liquids, gases, and solid particles, and can also serve as structural support components. With the development of various industries, the performance requirements for steel pipes are becoming increasingly diverse. In addition to basic mechanical properties, corrosion resistance and wear resistance have also become key indicators.

[0003] In industries such as petroleum, chemical, natural gas, and water supply and drainage, steel pipes frequently come into contact with various corrosive media, such as acids, alkalis, salt solutions, and corrosive gases. Corrosion leads to thinning of the steel pipe wall, decreased strength, and even problems such as perforation and leakage, affecting not only the transport of media but also potentially causing safety accidents, resulting in significant economic losses and environmental pollution. When steel pipes are used to transport media containing solid particles, such as slurry, coal powder, and sand, the flow of the media causes erosion and wear on the inner wall of the steel pipe. Furthermore, in environments with frequent mechanical vibration and friction, the outer wall of the steel pipe is also prone to wear. Wear increases the inner diameter of the steel pipe, affecting the efficiency and accuracy of media transport, while also reducing the strength and sealing performance of the steel pipe. Therefore, improving the wear resistance and corrosion resistance of steel pipes can extend their service life and improve the operational stability and reliability of equipment. Utility Model Content

[0004] The main purpose of this utility model is to provide a new type of steel pipe with anti-corrosion and wear-resistant functions, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel steel pipe with anti-corrosion and wear-resistant functions includes a steel pipe base layer. An anti-corrosion and wear-resistant functional layer is fixedly installed within the steel pipe base layer. This layer comprises an epoxy resin transition layer, a polyurethane intermediate buffer layer, a ceramic epoxy composite coating, and an ultra-high molecular weight polyethylene lining layer. The polyurethane intermediate buffer layer is located inside the epoxy resin transition layer, the ceramic epoxy composite coating is located inside the polyurethane intermediate buffer layer, and the ultra-high molecular weight polyethylene lining layer is located inside the ceramic epoxy composite coating. An external wear-resistant protection component is fitted onto the steel pipe base layer. This component comprises a supporting base ring, a connecting base block, and an arc-shaped wear-resistant protective pad. The connecting base block is fixedly embedded in the supporting base ring, and the arc-shaped wear-resistant protective pad is slidably installed on the supporting base ring.

[0007] Preferably, the end of the steel pipe base layer is fixedly fitted with a connecting flange by welding.

[0008] Preferably, the epoxy resin transition layer on the anti-corrosion and wear-resistant functional layer is fixedly disposed on the inner wall of the steel pipe base layer, the polyurethane intermediate buffer layer is fixedly disposed on the inner wall of the epoxy resin transition layer, the ceramic epoxy composite coating is fixedly disposed on the inner wall of the polyurethane intermediate buffer layer, and the ultra-high molecular weight polyethylene lining layer is fixedly disposed on the inner wall of the ceramic epoxy composite coating.

[0009] Preferably, the support base ring on the external wear-resistant protection component is sleeved on the outside of the steel pipe base layer, and the connecting base block is fixedly installed on the outer wall of the steel pipe base layer.

[0010] Preferably, the arc-shaped wear-resistant protective pad on the external wear-resistant protective component has an arc-shaped mounting groove. The arc-shaped wear-resistant protective pad is slidably mounted on the support base ring through the arc-shaped mounting groove, and the inner wall of the arc-shaped wear-resistant protective pad is in contact with the outer wall of the steel pipe base.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting an anti-corrosion and wear-resistant functional layer inside the steel pipe base layer, consisting of an epoxy resin transition layer, a polyurethane intermediate buffer layer, a ceramic epoxy composite coating, and an ultra-high molecular weight polyethylene lining layer, a multi-layer protective structure is formed, significantly improving the anti-corrosion and wear-resistant performance of the steel pipe. This is achieved by setting an external wear-resistant protective component on the steel pipe base layer, which effectively resists friction and impact between the steel pipe base layer and external objects, enhances the wear resistance of the outer wall of the steel pipe, and extends the service life of the steel pipe. The epoxy resin transition layer enhances the adhesion between the steel pipe base layer and the inner coating, the polyurethane intermediate buffer layer buffers the impact force brought by the flow of the medium, the ceramic epoxy composite coating effectively resists wear due to the high hardness of ceramics, and the ultra-high molecular weight polyethylene lining layer has excellent corrosion resistance and self-lubricating properties. Attached Figure Description

[0013] Figure 1 This is a bottom view of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the overall structure of this utility model;

[0015] Figure 3 For the present utility model Figure 2 A magnified view of point A;

[0016] Figure 4 This is a schematic diagram of the external wear-resistant protective component of this utility model.

[0017] In the diagram: 1. Steel pipe base layer; 2. Anti-corrosion and wear-resistant functional layer; 3. External wear-resistant protection component; 4. Connecting flange; 5. Epoxy resin transition layer; 6. Polyurethane intermediate buffer layer; 7. Ceramic epoxy composite coating; 8. Ultra-high molecular weight polyethylene lining layer; 9. Support base ring; 10. Connecting base block; 11. Arc-shaped wear-resistant protective pad; 12. Arc-shaped installation through groove. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1-4 As shown, a novel steel pipe with anti-corrosion and wear-resistant functions includes a steel pipe base layer 1. An anti-corrosion and wear-resistant functional layer 2 is fixedly installed inside the steel pipe base layer 1. The anti-corrosion and wear-resistant functional layer 2 consists of an epoxy resin transition layer 5, a polyurethane intermediate buffer layer 6, a ceramic epoxy composite coating 7, and an ultra-high molecular weight polyethylene lining layer 8. The polyurethane intermediate buffer layer 6 is located inside the epoxy resin transition layer 5, the ceramic epoxy composite coating 7 is located inside the polyurethane intermediate buffer layer 6, and the ultra-high molecular weight polyethylene lining layer 8 is located inside the ceramic epoxy composite coating 7. An external wear-resistant protection component 3 is fitted onto the steel pipe base layer 1. The external wear-resistant protection component 3 consists of a supporting base ring 9, a connecting base block 10, and an arc-shaped wear-resistant protective pad 11. The connecting base block 10 is fixedly installed inside the steel pipe base layer 1. The arc-shaped wear-resistant protective pad 11 is slidably mounted on the support base ring 9. The end of the steel pipe base 1 is fixedly fitted with a connecting flange 4 by welding. In use, the connection between steel pipes is achieved by welding the connecting flange 4 fixedly fitted to the end of the steel pipe base 1. In the anti-corrosion and wear-resistant functional layer 2, the epoxy resin transition layer 5 is fixed to the inner wall of the steel pipe base 1 to enhance the adhesion with the inner coating. The polyurethane intermediate buffer layer 6 buffers the impact of the flowing medium inside the epoxy resin transition layer 5. The ceramic epoxy composite coating 7 resists wear by virtue of the high hardness of the ceramic inside the polyurethane intermediate buffer layer 6. The ultra-high molecular weight polyethylene lining layer 8 plays a role with excellent corrosion resistance and self-lubricating properties inside the ceramic epoxy composite coating 7. The support base ring 9 of the external wear-resistant protective component 3 is fitted on the outside of the steel pipe base 1. The connecting base block 10 is fixed to the outer wall of the steel pipe base 1. The arc-shaped wear-resistant protective pad 11 is slidably mounted on the support base ring 9 through its arc-shaped mounting groove 12, and its inner wall is in contact with the outer wall of the steel pipe base 1, which can resist external friction and impact. During operation, the medium flows inside the steel pipe. Each layer of the anti-corrosion and wear-resistant functional layer 2 plays a role in enhancing adhesion, buffering, wear resistance, corrosion resistance and self-lubrication in turn. The arc-shaped wear-resistant protective pad 11 of the external wear-resistant protective component 3 forms wear-resistant protection on the outer wall of the steel pipe base layer 1, thereby improving the overall anti-corrosion and wear-resistant performance of the steel pipe and extending its service life.

[0020] Specifically, the epoxy resin transition layer 5 on the anti-corrosion and wear-resistant functional layer 2 is fixedly installed on the inner wall of the steel pipe base layer 1, the polyurethane intermediate buffer layer 6 is fixedly installed on the inner wall of the epoxy resin transition layer 5, the ceramic epoxy composite coating 7 is fixedly installed on the inner wall of the polyurethane intermediate buffer layer 6, and the ultra-high molecular weight polyethylene lining layer 8 is fixedly installed on the inner wall of the ceramic epoxy composite coating 7. The anti-corrosion and wear-resistant functional layer 2 is cylindrical and covers the inner wall of the steel pipe base layer 1. Each of its constituent layers is a ring structure coaxial with the steel pipe base layer 1. From the outside to the inside, they are epoxy resin transition layer 5, polyurethane intermediate buffer layer 6, ceramic epoxy composite coating 7, and ultra-high molecular weight polyethylene lining layer 8. The epoxy resin transition layer 5 is tightly bonded to the inner wall of the steel pipe base 1, forming the first layer of protection; the polyurethane intermediate buffer layer 6 completely covers the inner surface of the epoxy resin transition layer 5, forming a continuous buffer structure; the ceramic epoxy composite coating 7 is uniformly coated on the inner side of the polyurethane intermediate buffer layer 6, forming a wear-resistant barrier by utilizing the high hardness of the ceramic particles; the ultra-high molecular weight polyethylene lining layer 8, as the innermost layer, completely covers the inner side of the ceramic epoxy composite coating 7, and its smooth surface and corrosion resistance directly act on the transported medium. The layers are tightly bonded to each other through chemical bonding or physical adhesion, forming a complete protection system from the inner wall of the steel pipe base 1 to the inner cavity of the pipeline. Moreover, this functional layer is distributed along the entire axial length of the steel pipe base 1, ensuring corrosion resistance and wear resistance throughout the entire pipeline.

[0021] Specifically, the support base ring 9 on the external wear-resistant protection component 3 is sleeved on the outside of the steel pipe base 1, and the connecting base block 10 is fixedly installed on the outer wall of the steel pipe base 1. The arc-shaped wear-resistant protective pad 11 on the external wear-resistant protection component 3 has an arc-shaped installation through groove 12. The arc-shaped wear-resistant protective pad 11 is slidably installed on the support base ring 9 through the arc-shaped installation through groove 12, and the inner wall of the arc-shaped wear-resistant protective pad 11 is in contact with the outer wall of the steel pipe base 1. Multiple external wear-resistant protection components 3 can be set and sleeved at intervals along the axial direction of the steel pipe base 1. The distance between adjacent external wear-resistant protection components 3 is set according to the wear risk of the actual use scenario, so that the arc-shaped wear-resistant protective pad 11 on the external wear-resistant protection component 3 is located in the part of the outer wall of the steel pipe base 1 that is prone to friction or impact, so as to achieve targeted protection of the outer wall of the steel pipe base 1. The distribution range of the entire external wear-resistant protection component 3 can be flexibly set according to the key wear areas of the outer wall of the steel pipe.

[0022] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A novel steel pipe with anti-corrosion and wear-resistant functions, comprising a steel pipe base layer (1), characterized in that: The steel pipe base layer (1) is fixedly installed with an anti-corrosion and wear-resistant functional layer (2). The anti-corrosion and wear-resistant functional layer (2) is composed of an epoxy resin transition layer (5), a polyurethane intermediate buffer layer (6), a ceramic epoxy composite coating (7), and an ultra-high molecular weight polyethylene lining layer (8). The polyurethane intermediate buffer layer (6) is located inside the epoxy resin transition layer (5), the ceramic epoxy composite coating (7) is located inside the polyurethane intermediate buffer layer (6), and the ultra-high molecular weight polyethylene lining layer (8) is located inside the ceramic epoxy composite coating (7). An external wear-resistant protection component (3) is fitted on the steel pipe base layer (1). The external wear-resistant protection component (3) is composed of a support base ring (9), a connecting base block (10), and an arc-shaped wear-resistant protective pad (11). The connecting base block (10) is fixedly embedded in the support base ring (9), and the arc-shaped wear-resistant protective pad (11) is slidably installed on the support base ring (9).

2. The novel steel pipe with anti-corrosion and wear-resistant functions according to claim 1, characterized in that: The end of the steel pipe base layer (1) is fixedly fitted with a connecting flange (4) by welding.

3. A novel steel pipe with anti-corrosion and wear-resistant functions according to claim 2, characterized in that: The epoxy resin transition layer (5) on the anti-corrosion and wear-resistant functional layer (2) is fixedly installed on the inner wall of the steel pipe base layer (1), the polyurethane intermediate buffer layer (6) is fixedly installed on the inner wall of the epoxy resin transition layer (5), the ceramic epoxy composite coating (7) is fixedly installed on the inner wall of the polyurethane intermediate buffer layer (6), and the ultra-high molecular weight polyethylene lining layer (8) is fixedly installed on the inner wall of the ceramic epoxy composite coating (7).

4. A novel steel pipe with anti-corrosion and wear-resistant functions according to claim 3, characterized in that: The support base ring (9) on the external wear-resistant protection component (3) is sleeved on the outside of the steel pipe base (1), and the connecting base block (10) is fixedly installed on the outer wall of the steel pipe base (1).

5. A novel steel pipe with anti-corrosion and wear-resistant functions according to claim 4, characterized in that: The arc-shaped wear-resistant protective pad (11) on the external wear-resistant protective component (3) is provided with an arc-shaped mounting groove (12). The arc-shaped wear-resistant protective pad (11) is slidably mounted on the support base ring (9) through the arc-shaped mounting groove (12), and the inner wall of the arc-shaped wear-resistant protective pad (11) is in contact with the outer wall of the steel pipe base (1).

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