Wear-resistant pipe fitting with multi-layer wear-resistant structure

Abstract

The utility model discloses a wear-resisting pipe fitting with a multi-layer wear-resisting structure, which comprises a wear-resisting inner pipe for supporting and a wear-resisting supporting inner layer, and the wear-resisting supporting inner layer is fixedly arranged on the inner end face of the wear-resisting inner pipe. The wear-resistant inner pipe made of the high-chromium white cast iron is arranged inside the wear-resistant pipe body, and the wear-resistant outer pipe made of the carbon steel is arranged outside the wear-resistant pipe body, so that the wear-resistant outer pipe and the wear-resistant inner pipe can be integrally welded through the weldability of the carbon steel of the wear-resistant inner pipe, and the wear resistance and the corrosion resistance of the inside and the outside of the wear-resistant pipe body are improved to the maximum extent; meanwhile, the wear-resistant supporting inner layer and the wear-resistant supporting outer layer can further improve the wear resistance of the interior of the wear-resistant inner pipe to material conveying through a dual wear-resistant structure, and the reinforcing rib net can provide enough supporting stability and toughness for the interior of the wear-resistant inner pipe, so that the subsequent deformation resistance of the wear-resistant inner pipe is improved, and the service life of the wear-resistant inner pipe is prolonged. Therefore, the service life of the whole wear-resistant pipe body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant pipe fitting equipment, in particular to a wear-resistant pipe fitting with a multi-layer wear-resistant structure. Background Art

[0002] In the mining, metallurgy, coal, electric power and other industries, materials are transported in the form of long-distance pressure transportation through pipelines. The pipelines are under considerable pressure and are subject to severe abrasive wear. Abrasive wear is the most serious form of wear. Its essence is the result of hard abrasive particles cutting or chiseling the metal surface. Therefore, wear-resistant pipe fittings are needed when transporting materials.

[0003] However, the existing wear-resistant pipe fittings still have insufficient wear-resistant stability. At the same time, the existing wear-resistant pipe fittings also have insufficient support stability for the pipe body, which makes the wear-resistant pipe body in most harsh conveying environments prone to deformation, affecting the material conveying efficiency. Therefore, there is an urgent need for a wear-resistant pipe fitting with a multi-layer wear-resistant structure to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a wear-resistant pipe fitting with a multi-layer wear-resistant structure to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: a wear-resistant pipe with a multi-layer wear-resistant structure, comprising a wear-resistant inner pipe for support,

[0006] A wear-resistant support inner layer, the wear-resistant support inner layer being fixedly arranged on the inner end surface of the wear-resistant inner tube;

[0007] A reinforcing rib mesh, the reinforcing rib mesh being fixedly arranged on the inner end surface of the wear-resistant inner tube near the outside of the wear-resistant support inner layer;

[0008] A wear-resistant support outer layer, the wear-resistant support outer layer is fixedly arranged on the inner end surface of the wear-resistant inner tube near the outside of the reinforcing rib mesh;

[0009] A wear-resistant outer tube is fixedly arranged on the outer end surface of the wear-resistant inner tube, and reinforcement rings are equidistantly arranged on the outer end surface of the wear-resistant outer tube, and a protective jacket is fixedly arranged on the outside of the reinforcement ring.

[0010] Preferably, the wear-resistant outer tube is made of carbon steel, which can improve the wear resistance and protection of the outer portion of the tube body.

[0011] Preferably, the material of the wear-resistant inner tube is high chromium white cast iron, which has good wear resistance and weldability of carbon steel pipe, and can be easily welded with the wear-resistant outer tube, thereby improving the material transportation stability and wear resistance of the tube body.

[0012] Preferably, the wear-resistant support outer layer and the wear-resistant support inner layer are made of tungsten steel. The two-layer tungsten steel wear-resistant structure can effectively improve the wear resistance of the inside of the wear-resistant inner tube.

[0013] Preferably, the reinforcing rib mesh is made of wear-resistant chrome steel, which can provide sufficient support stability and toughness for the interior of the wear-resistant inner tube and improve the subsequent deformation resistance of the wear-resistant inner tube.

[0014] Preferably, the material of the protective jacket is a fiberglass composite material, which has good strength, elastic modulus, hardness and corrosion resistance, and can effectively improve the protection of the outside of the pipe body, thereby increasing the service life of the pipe body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The interior of the wear-resistant tube body of the utility model is a wear-resistant inner tube made of high-chromium white cast iron, and the exterior is a wear-resistant outer tube made of carbon steel, so that the wear-resistant outer tube can be welded to the wear-resistant inner tube as a whole through the weldability of the carbon steel tube of the wear-resistant inner tube, thereby maximizing the wear resistance and corrosion resistance of the inside and outside of the wear-resistant tube body. At the same time, the wear-resistant support inner layer and the wear-resistant support outer layer can further improve the wear resistance of the inside of the wear-resistant inner tube to material transportation through the double wear-resistant structure, and the reinforcing rib net can provide sufficient support stability and toughness for the inside of the wear-resistant inner tube, thereby improving the subsequent deformation resistance of the wear-resistant inner tube, thereby improving the overall service life of the wear-resistant tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of the main body of the utility model;

[0018] Figure 2 It is a structural diagram of the main body of the utility model.

[0019] In the figure: 1-protective outer jacket, 2-wear-resistant outer tube, 3-wear-resistant support outer layer, 4-wear-resistant support inner layer, 5-reinforcement rib mesh, 6-wear-resistant inner tube, 7-reinforcement rib ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-2The present invention provides an embodiment of a wear-resistant pipe having a multi-layer wear-resistant structure, comprising a wear-resistant inner pipe 6 for supporting.

[0022] The wear-resistant support inner layer 4 is fixedly arranged on the inner end surface of the wear-resistant inner tube 6;

[0023] The reinforcing rib mesh 5 is fixedly arranged on the inner end surface of the wear-resistant inner tube 6 and close to the outside of the wear-resistant support inner layer 4;

[0024] The wear-resistant support outer layer 3 is fixedly arranged on the inner end surface of the wear-resistant inner tube 6 near the outside of the reinforcing rib mesh 5;

[0025] The wear-resistant outer tube 2 is fixedly arranged on the outer end surface of the wear-resistant inner tube 6, and a reinforcing rib ring 7 is equidistantly arranged on the outer end surface of the wear-resistant outer tube 2, and a protective jacket 1 is fixedly arranged on the outside of the reinforcing rib ring 7.

[0026] The material of the wear-resistant outer tube 2 is carbon steel, which can improve the wear resistance and protection of the outer part of the tube body.

[0027] The material of the wear-resistant inner tube 6 is high chromium white cast iron, which has good wear resistance and weldability of carbon steel pipe, and can be conveniently welded with the wear-resistant outer tube 2 to improve the material conveying stability and wear resistance of the tube body.

[0028] The wear-resistant support outer layer 3 and the wear-resistant support inner layer 4 are made of tungsten steel. The two-layer tungsten steel wear-resistant structure can effectively improve the wear resistance of the inside of the wear-resistant inner tube 6.

[0029] The material of the reinforcing rib mesh 5 is wear-resistant chrome steel, which can provide sufficient support stability and toughness for the interior of the wear-resistant inner tube 6 and improve the subsequent deformation resistance of the wear-resistant inner tube 6.

[0030] The material of the protective jacket 1 is a fiberglass composite material. The protective jacket 1 is a fiberglass composite material with good strength, elastic modulus, hardness and corrosion resistance. It can effectively improve the protection of the outside of the pipe body and thus increase the service life of the pipe body.

[0031] Working principle: When in use, the interior of the wear-resistant tube body is a wear-resistant inner tube 6 made of high-chromium white cast iron, and the exterior is a wear-resistant outer tube 2 made of carbon steel, so that the wear-resistant outer tube 2 can pass through the carbon steel pipe weldability of the wear-resistant inner tube 6, and the wear-resistant outer tube 2 and the wear-resistant inner tube 6 are welded as one, thereby maximizing the wear resistance and corrosion resistance of the inside and outside of the wear-resistant tube body. At the same time, the wear-resistant support inner layer 4 and the wear-resistant support outer layer 3 can further improve the wear resistance of the inside of the wear-resistant inner tube 6 to material transportation through the double wear-resistant structure, and the reinforcing rib mesh 5 can provide sufficient support stability and toughness for the inside of the wear-resistant inner tube 6, thereby improving the subsequent deformation resistance of the wear-resistant inner tube 6, thereby improving the overall service life of the wear-resistant tube body.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant pipe having a multi-layer wear-resistant structure, comprising a wear-resistant inner pipe (6) for support, characterized in that: A wear-resistant support inner layer (4), wherein the wear-resistant support inner layer (4) is fixedly arranged on the inner end surface of the wear-resistant inner tube (6); A reinforcing rib mesh (5), the reinforcing rib mesh (5) being fixedly arranged on the inner end surface of the wear-resistant inner tube (6) near the outside of the wear-resistant support inner layer (4); A wear-resistant support outer layer (3), the wear-resistant support outer layer (3) being fixedly arranged on the inner end surface of the wear-resistant inner tube (6) near the outside of the reinforcing rib mesh (5); A wear-resistant outer tube (2) is fixedly arranged on the outer end surface of the wear-resistant inner tube (6), and reinforcement rings (7) are equidistantly arranged on the outer end surface of the wear-resistant outer tube (2), and a protective outer jacket (1) is fixedly arranged on the outside of the reinforcement ring (7).

2. The wear-resistant pipe fitting with a multi-layer wear-resistant structure according to claim 1, characterized in that: The material of the wear-resistant outer tube (2) is carbon steel.

3. The wear-resistant pipe fitting with a multi-layer wear-resistant structure according to claim 2, characterized in that: The material of the wear-resistant inner tube (6) is high-chromium white cast iron.

4. The wear-resistant pipe fitting with a multi-layer wear-resistant structure according to claim 2, characterized in that: The wear-resistant support outer layer (3) and the wear-resistant support inner layer (4) are made of tungsten steel.

5. The wear-resistant pipe fitting with a multi-layer wear-resistant structure according to claim 2, characterized in that: The material of the reinforcing rib net (5) is wear-resistant chromium steel.

6. The wear-resistant pipe fitting with a multi-layer wear-resistant structure according to claim 2, characterized in that: The material of the protective jacket (1) is a glass fiber reinforced plastic composite material.

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