Wear-resistant surfacing welding pipeline

Abstract

The utility model discloses a wear-resistant surfacing pipeline which comprises two pipeline bodies, flange rings are fixedly connected to the opposite ends of the two pipeline bodies, a connecting piece is connected between the two flange rings in a clamped mode, the connecting piece and the two flange rings are fixed through bolts, the connecting piece is communicated with the interiors of the two pipeline bodies, and the two pipeline bodies are connected through bolts. And a wear-resistant layer is overlaid on the inner wall of the pipeline body. The positioning ring is in threaded connection with the two flange rings, fastening is achieved, meanwhile, the outer side of the connecting pipe is communicated with the pipeline body in an inserted mode along the inner wall of the end of the pipeline body, the wall thickness of the connecting position is increased, the structural quality and strength of the connecting position are integrally enhanced, and the abrasion resistance of the inner wall of the pipeline body is improved through the surfacing abrasion-resistant layer; therefore, the device has the advantages of being convenient to connect and operate, high in strength, not prone to breakage and capable of prolonging the service life of the pipeline.

Description

Technical Field

[0001] The utility model relates to the field of pipelines, and more specifically to a wear-resistant cladding pipeline. Background Art

[0002] Wear-resistant cladding refers to coating a layer of wear-resistant material on the inner wall of the pipeline. Commonly used cladding materials include chromium alloy, tungsten steel, etc., so as to improve the wear resistance of the pipeline and extend its service life. Application field: Pipeline wear-resistant cladding is widely used in coal mining, electric power, metallurgy, chemical industry and other industries, generally with a larger diameter.

[0003] However, when the existing cladding pipes are butt-jointed, due to their large diameter, the connection stability at the butt joint is poor. Generally, the pipe ports are directly bolted with flanges, which makes the pipe port connection easy to break, thus affecting the service life of the pipe. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model aims to provide a wear-resistant cladding pipe.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A wear-resistant cladding pipe comprises two pipe bodies, the opposite ends of the two pipe bodies are fixedly connected with flange rings, a connecting piece is clamped between the two flange rings, the connecting piece is fixed to the two flange rings by bolts, the connecting piece is communicated with the inside of the two pipe bodies, and the inner wall of the pipe body is cladding-welded with a wear-resistant layer;

[0007] The connecting piece includes a connecting pipe and a positioning ring. The outer side of the connecting pipe is integrally formed with the positioning ring. The two ends of the connecting pipe are respectively inserted into the interior of the two pipe bodies. Both sides of the positioning ring are fixedly connected with screws arranged at equal distances. The other end of the screw passes through one side of the flange ring and is locked and fixed by a nut.

[0008] As a further description of the above technical solution: both sides of the positioning ring are fixedly connected with raised snap rings, and the opposite sides of the two flange rings are provided with side ring grooves that cooperate with the raised snap rings.

[0009] As a further description of the above technical solution: an outer ring groove is provided on the outer side of the positioning ring.

[0010] As a further description of the above technical solution: corresponding sealing grooves are provided between the two sides of the positioning ring and the flange ring, and sealing rings are clamped inside the sealing grooves.

[0011] As a further description of the above technical solution: both ends of the connecting pipe are provided with inwardly inclined surfaces.

[0012] As a further description of the above technical solution: triangular reinforcement blocks distributed in an annular manner are fixedly connected between the flange ring and the pipeline body.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This solution uses a flange ring in conjunction with a connector, thereby achieving the advantages of convenient connection operation, high strength, not easy to break, and extended pipeline service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0018] Figure 4 It is a partial three-dimensional structural schematic diagram of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Pipe body; 2. Flange ring; 21. Side ring groove; 3. Connector; 31. Connecting pipe; 311. Inclined surface; 32. Positioning ring; 321. Raised clamping ring; 322. Outer ring groove; 4. Sealing groove; 41. Sealing ring; 5. Triangular reinforcement block; 6. Wear-resistant layer. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0022] See also Figures 1 to 4 In the utility model, a wear-resistant cladding pipe comprises two pipe bodies 1, the opposite ends of the two pipe bodies 1 are fixedly connected with flange rings 2, a connector 3 is clamped between the two flange rings 2, the connector 3 is fixed to the two flange rings 2 by bolts, the connector 3 is connected to the inside of the two pipe bodies 1, and the inner wall of the pipe body 1 is clad with a wear-resistant layer 6;

[0023] The connecting piece 3 includes a connecting pipe 31 and a positioning ring 32. The outer side of the connecting pipe 31 is integrally formed with the positioning ring 32. The two ends of the connecting pipe 31 are respectively inserted into the inside of the two pipe bodies 1. Both sides of the positioning ring 32 are fixedly connected with screws 33 arranged at equal distances. The other end of the screw 33 passes through one side of the flange ring 2 and is locked and fixed by a nut.

[0024] In the utility model, the flange ring 2 on the pipe body 1 makes it convenient to connect the end with the connecting piece 3, and the positioning ring 32 is threadedly connected with the two flange rings 2 to achieve fastening. At the same time, the outer side of the connecting pipe 31 is plugged and connected with the inner wall of the end of the pipe body 1, thereby increasing the wall thickness of the connection and enhancing the structural quality and strength of the connection as a whole. In addition, the wear-resistant layer 6 of the cladding is used to increase the wear resistance of the inner wall of the pipe body 1, thereby realizing the advantages of convenient connection operation, high strength, not easy to break, and extended service life of the pipe. This solves the problem that when the cladding pipe in the prior art is connected, due to the large diameter, the connection stability of the connection is poor, and the pipe mouth is generally provided with a flange for direct bolt connection, which makes the pipe mouth connection easy to break, affecting the service life of the pipe.

[0025] See also Figure 3 , wherein: both sides of the positioning ring 32 are fixedly connected with raised snap rings 321 , and the opposite sides of the two flange rings 2 are provided with side ring grooves 21 that cooperate with the raised snap rings 321 .

[0026] In the utility model, the protruding snap ring 321 cooperates with the side ring groove 21 to make the butt connection between the positioning ring 32 and the flange ring 2 more accurate.

[0027] See also Figure 1 and Figure 2 , wherein: an outer ring groove 322 is opened on the outer side of the positioning ring 32.

[0028] In the utility model, the mass of the positioning ring 32 is reduced by the outer ring groove 322, thereby reducing the weight.

[0029] See also Figure 3 , wherein: corresponding sealing grooves 4 are provided between the two sides of the positioning ring 32 and the flange ring 2 , and sealing rings 41 are clamped inside the sealing grooves 4 .

[0030] In the utility model, the sealing groove 4 cooperates with the sealing ring 41 to achieve better butt sealing performance.

[0031] See also Figure 2 , wherein: both ends of the connecting pipe 31 are provided with inwardly inclined surfaces 311 .

[0032] In the present invention, the resistance of the material flowing through the connecting pipe 31 is effectively reduced by providing the inclined surface 311, thereby reducing the friction.

[0033] See also Figure 1 and Figure 2 , wherein: a triangular reinforcement block 5 distributed in an annular manner is fixedly connected between the flange ring 2 and the pipeline body 1.

[0034] In the utility model, the triangular reinforcement block 5 makes the connection strength between the flange ring 2 and the pipeline body 1 better, thereby ensuring better overall structural strength.

[0035] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A wear-resistant cladding pipe, comprising two pipe bodies (1), characterized in that: The two opposite ends of the two pipe bodies (1) are fixedly connected with flange rings (2), a connecting piece (3) is clamped between the two flange rings (2), the connecting piece (3) and the two flange rings (2) are fixed by bolts, the connecting piece (3) is communicated with the inside of the two pipe bodies (1), and the inner wall of the pipe body (1) is welded with a wear-resistant layer (6); The connecting piece (3) comprises a connecting pipe (31) and a positioning ring (32); the outer side of the connecting pipe (31) and the positioning ring (32) are integrally formed; the two ends of the connecting pipe (31) are respectively plugged into the interior of the two pipe bodies (1); both sides of the positioning ring (32) are fixedly connected with screw rods (33) arranged at equal distances; the other end of the screw rods (33) penetrates one side of the flange ring (2) and is locked and fixed by a nut.

2. The wear-resistant cladding pipe according to claim 1, characterized in that: Both sides of the positioning ring (32) are fixedly connected with raised snap rings (321), and the opposite sides of the two flange rings (2) are provided with side ring grooves (21) matching with the raised snap rings (321).

3. The wear-resistant cladding pipe according to claim 1, characterized in that: An outer ring groove (322) is formed on the outer side of the positioning ring (32).

4. The wear-resistant cladding pipe according to claim 1, characterized in that: Corresponding sealing grooves (4) are provided between the two sides of the positioning ring (32) and the flange ring (2), and a sealing ring (41) is clamped inside the sealing groove (4).

5. The wear-resistant cladding pipe according to claim 1, characterized in that: Both ends of the connecting pipe (31) are provided with inwardly inclined surfaces (311).

6. The wear-resistant cladding pipe according to claim 1, characterized in that: Annularly distributed triangular reinforcement blocks (5) are fixedly connected between the flange ring (2) and the pipeline body (1).

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