Alumina ceramic wear tube

Abstract

The utility model belongs to the field of alumina ceramic pipe fittings, especially an alumina ceramic wear -resisting pipe fitting, aiming at the problem that the pipe fitting posture is difficult to adjust when connecting the longer pipeline, the glue is easy to deviate because of gravity when connecting, makes the glue distribution not enough even, influences the stability of connection, the present scheme is proposed, including the straight pipe, the inner wall of straight pipe is bonded with first ceramic patch, the elbow pipe is welded in the top of straight pipe, the inner wall of elbow pipe is bonded with second ceramic patch, the reducer is welded in one end of elbow pipe, the inner wall of reducer is bonded with third ceramic patch, in the utility model, can utilize injection slot to inject the glue in annular groove, ensure the evenness of glue distribution, and then ensure the stability of structure connection, improve the wear resistance and corrosion resistance of pipe fitting inner wall, ensure the service life of pipe fitting, can position the seal, convenient for welding.

Description

Technical Field

[0001] This utility model relates to the field of alumina ceramic pipe fittings, and in particular to an alumina ceramic wear-resistant pipe fitting. Background Technology

[0002] In existing technologies, alumina ceramic patches are typically installed on the inner wall of metal pipes to improve their wear resistance. Alumina ceramics have a Mohs hardness of 9, second only to diamond, exhibiting excellent wear resistance and superior resistance to strong corrosive media such as acids, alkalis, and salts.

[0003] When installing alumina ceramic patches on irregularly shaped pipe fittings such as elbows, adhesive bonding is usually used. During pipe welding, adhesive is typically applied to adjacent alumina ceramic sections to connect the inner alumina ceramics before welding the outer metal pipe. For shorter pipe fittings, the adhesive can be applied more evenly by adjusting the fitting's orientation. However, when connecting longer pipes, the fitting's orientation is difficult to adjust, and the adhesive is prone to shifting due to gravity during connection, resulting in uneven adhesive distribution and affecting the stability of the connection.

[0004] Therefore, we propose an alumina ceramic wear-resistant pipe fitting. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where, when connecting long pipes, the posture of the pipe fittings is difficult to adjust, and the adhesive is prone to shifting due to gravity during connection, resulting in uneven adhesive distribution and affecting the stability of the connection. Therefore, this invention proposes an alumina ceramic wear-resistant pipe fitting.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An alumina ceramic wear-resistant pipe fitting, comprising:

[0008] A straight tube, wherein a first ceramic patch is adhered to the inner wall of the straight tube;

[0009] Elbow pipe, welded to the top of straight pipe, with a second ceramic patch bonded to the inner wall of elbow pipe;

[0010] The reducer is welded to one end of the elbow pipe, and a third ceramic patch is bonded to the inner wall of the reducer.

[0011] An annular groove is formed on one side of the third ceramic patch;

[0012] Two injection grooves are symmetrically arranged on one side of the reducer and connected to the annular groove;

[0013] A seal is placed inside the injection tank.

[0014] In one possible design, one end of the seal has two symmetrically arranged positioning blocks integrally formed, and one end of the injection groove has two positioning grooves, with the positioning blocks located in the positioning grooves.

[0015] In one possible design, the outer wall of the elbow is welded with a connecting pipe, and flanges are welded to both the top end of the connecting pipe and the bottom end of the straight pipe. A fourth ceramic patch is adhered to the inner wall of the connecting pipe.

[0016] In one possible design, the straight pipes, elbows, reducers, connecting pipes, and seals are made of stainless steel.

[0017] In one possible design, the straight tube and the two injection tanks are arranged in parallel.

[0018] In one possible design, the straight tube and the two injection slots are arranged vertically.

[0019] In this application, when connecting pipes, the fittings and connecting pipes are aligned and welded together, leaving an injection groove and a gap nearby. Then, glue is injected from the lower injection groove using a syringe. When the glue overflows from the upper injection groove, the injection is stopped. Then, a seal is inserted into the lower injection groove. After the glue dries, a seal is inserted into the upper injection groove, and then the seal is welded.

[0020] Beneficial effects: In this utility model, the alumina ceramic wear-resistant pipe fitting, through the setting of structures such as injection groove, sealing strip and annular groove, can use injection groove to inject glue into annular groove, ensuring the uniformity of glue distribution, thereby ensuring the stability of structural connection;

[0021] In this utility model, the alumina ceramic wear-resistant pipe fitting improves the wear resistance and corrosion resistance of the inner wall of the pipe fitting by setting up a structure such as a straight pipe, an elbow pipe and a first ceramic patch, thus ensuring the service life of the pipe fitting.

[0022] In this utility model, the alumina ceramic wear-resistant pipe fitting can position the seal strip by setting up a positioning block and positioning groove, which facilitates welding to it;

[0023] In this invention, glue can be injected into the annular groove using an injection tank to ensure the uniformity of glue distribution, thereby ensuring the stability of the structural connection, improving the wear resistance and corrosion resistance of the inner wall of the pipe fitting, ensuring the service life of the pipe fitting, and positioning the seal for easy welding. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an alumina ceramic wear-resistant pipe fitting proposed in this utility model;

[0025] Figure 2This is a cross-sectional structural diagram of an alumina ceramic wear-resistant pipe fitting proposed in this utility model;

[0026] Figure 3 This is a partially enlarged structural schematic diagram of an alumina ceramic wear-resistant pipe fitting proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of another distribution state of the injection groove of an alumina ceramic wear-resistant pipe fitting proposed in this utility model.

[0028] In the diagram: 1. Straight pipe; 2. Elbow pipe; 3. Reducer; 4. First ceramic patch; 5. Second ceramic patch; 6. Third ceramic patch; 7. Connecting pipe; 8. Fourth ceramic patch; 9. Flange; 10. Annular groove; 11. Injection tank; 12. Seal; 13. Positioning block; 14. Positioning groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In one embodiment: Refer to Figures 1-4 A pipe fitting includes: a straight pipe 1, an elbow 2, and a reducer 3. A first ceramic patch 4, made of alumina ceramic material, is fixed to the inner wall of the straight pipe 1 using a high-temperature resistant adhesive, covering the entire inner surface of the straight pipe 1. The inlet end of the elbow 2 is sealed to the top end of the straight pipe 1 by argon arc welding, and a second ceramic patch 5 is also continuously adhered to the inner wall of the elbow 2. The reducer 3 is welded to the outlet end of the elbow 2, and a third ceramic patch 6 is adhered to its inner wall, maintaining complete coverage at the diameter-changing section of the reducer 3.

[0031] A semi-circular annular groove 10 is machined at the outer edge of the third ceramic patch 6 near the welding end. Two cylindrical injection grooves 11 are symmetrically opened on the wall of the reducer 3. The central axes of the two grooves are on the same straight line and penetrate the pipe wall. The inner end of the injection groove 11 is connected to the annular groove 10. The seal 12 adopts an interference fit adaptation structure with the injection groove 11, which can completely seal the channel of the injection groove 11.

[0032] The insertion end of the seal 12 has two integrally formed wedge-shaped positioning blocks 13, corresponding to matching positioning grooves 14 machined at the inlet of the injection groove 11. When the seal 12 is inserted, the positioning blocks 13 are embedded in the positioning grooves 14 to achieve circumferential limiting. A connecting pipe 7 is welded to the side wall of the elbow pipe 2, and a fourth ceramic patch 8 is bonded to the inner wall of the connecting pipe 7. Standard flanges 9 are welded to both the bottom end of the straight pipe 1 and the top end of the connecting pipe 7, and the bolt holes of the flanges 9 are configured according to ANSI standards.

[0033] This application can be used in the field of alumina ceramic pipe fittings, or in other fields applicable to this application.

[0034] In another embodiment: an alumina ceramic wear-resistant pipe fitting, which is applied to the field of alumina ceramic pipe fittings;

[0035] In another aspect of this embodiment, all metal components, including straight pipe 1, elbow pipe 2, reducer 3, connecting pipe 7 and seal 12, are made of 304 stainless steel.

[0036] There are two configurations for the injection tank 11 during implementation: one is to make the axes of the two injection tanks 11 parallel to the axis of the straight pipe 1, and the other is to make the axes of the injection tanks 11 perpendicular to the axis of the straight pipe 1. During pipe connection operations, the appropriate injection tank 11 should be selected for installation according to the pipe installation situation.

[0037] During installation, first align the reducer 3 with the external pipe, and perform circumferential welding along the weld seam, leaving a 10mm area around the injection groove 11 unwelded. Then, insert the glue gun nozzle into the lower injection groove 11 and inject the glue until it overflows from the upper injection groove 11. Immediately press the seal 12 with the positioning block 13 into the lower injection groove 11. After the glue has cured, a hot air gun can be used to accelerate the curing process. Then, press the other seal 12 into the upper injection groove 11. Finally, seal the joint between the end of the seal 12 and the pipe wall by welding, and repair any pre-reserved weld seam areas.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An alumina ceramic wear-resistant pipe fitting, characterized in that, include: A straight tube (1) has a first ceramic patch (4) bonded to its inner wall. Elbow pipe (2) is welded to the top of straight pipe (1), and a second ceramic patch (5) is bonded to the inner wall of elbow pipe (2). The reducer (3) is welded to one end of the elbow (2), and a third ceramic patch (6) is bonded to the inner wall of the reducer (3). An annular groove (10) is formed on one side of the third ceramic patch (6); Two injection grooves (11) are symmetrically arranged on one side of the reducer (3) and connected to the annular groove (10); A seal (12) is placed inside the injection tank (11).

2. The alumina ceramic wear-resistant pipe fitting according to claim 1, characterized in that, One end of the seal (12) is integrally formed with two symmetrically arranged positioning blocks (13), and one end of the injection groove (11) is provided with two positioning grooves (14), with the positioning blocks (13) located in the positioning grooves (14).

3. The alumina ceramic wear-resistant pipe fitting according to claim 2, characterized in that, The outer wall of the elbow (2) is welded with a connecting pipe (7), and the top end of the connecting pipe (7) and the bottom end of the straight pipe (1) are both welded with flanges (9). The inner wall of the connecting pipe (7) is bonded with a fourth ceramic patch (8).

4. The alumina ceramic wear-resistant pipe fitting according to claim 3, characterized in that, The straight pipe (1), elbow pipe (2), reducer (3), connecting pipe (7) and seal (12) are made of stainless steel.

5. An alumina ceramic wear-resistant pipe fitting according to any one of claims 1-4, characterized in that, The straight pipe (1) and the two injection tanks (11) are arranged in parallel.

6. An alumina ceramic wear-resistant pipe fitting according to any one of claims 1-4, characterized in that, The straight tube (1) and the two injection grooves (11) are arranged vertically.

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