Corrosion-resistant and corrosion-resistant pipeline

Abstract

The utility model relates to the technical field of pipelines, and discloses an anti-corrosion pipeline which comprises pipe bodies, one end of each pipe body is fixedly connected with an extending part and a protruding part, the other end of each pipe body is fixedly connected with an inserting part, and after the two pipe bodies are in butt joint, the inserting part is inserted between the extending part and the protruding part. A protruding ring is arranged on the outer edge opening of the extending part, the pipe body is sleeved with a clamping hoop, a sealing assembly is arranged at the end of the pipe body, a first conical ring is arranged on the inner side of the extending part, a second conical ring is arranged at the end of the inner side of the inserting part, and a conical groove is further formed in the inner side of the inserting part. According to the utility model, the extension part, the insertion part and the convex part are additionally arranged at the end part of the pipe body, and after the insertion part is inserted between the extension part and the convex part, the clamping hoop is locked to extrude the convex ring, so that the extension part, the insertion part and the convex part can be fully attached, and the sealing of the pipeline joint is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a corrosion-resistant and anti-corrosive pipeline. Background Art

[0002] In a sewage treatment system, pipelines are used to transport corrosive media such as acids, alkalis, salts, and organic chemicals, so they need to have excellent corrosion resistance. Existing corrosion-resistant pipelines usually adopt composite materials, which can effectively resist corrosion and extend the service life of the pipelines. However, most of the current pipeline connection methods use pipe clamps. Although this method is convenient for installation and low in cost, there are obvious problems in actual applications.

[0003] The sealing performance of the pipe clamp connection gradually weakens with the internal pressure fluctuation, temperature change of the pipeline, and long-term use, which is likely to cause leakage at the connection. Corrosive substances in the sewage are also likely to penetrate into the pipeline system through these leakage points, further corroding the pipe clamps and sealing materials and reducing the corrosion resistance at the connection. Over time, these problems will exacerbate the damage of the pipeline, increase the maintenance frequency and cost, especially in underground pipelines, where the maintenance difficulty is relatively large. Therefore, a corrosion-resistant and anti-corrosive pipeline is proposed to solve the above problems. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a corrosion-resistant and anti-corrosive pipeline, aiming to improve the problem that the sewage treatment pipeline in the prior art uses a pipe clamp connection method, which is likely to cause leakage at the connection due to poor sealing performance, affecting the corrosion resistance and long-term stability of the system.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A corrosion-resistant and anti-corrosive pipeline includes a pipe body. One end of the pipe body is fixedly connected with an extension part and a convex part. The other end of the pipe body is fixedly connected with a plug-in part. After two pipe bodies are butted, the plug-in part is inserted between the extension part and the convex part. A convex ring is arranged at the outer edge of the extension part. A clamp is sleeved outside the pipe body. A sealing component is arranged at the end of the pipe body.

[0007] As a further description of the above technical scheme:

[0008] A first conical ring is arranged inside the extension part, and a second conical ring is arranged at the inner end of the plug-in part.

[0009] As a further description of the above technical scheme:

[0010] A conical groove is also opened inside the plug-in part. After two pipe bodies are aligned, the conical groove is clamped with the first conical ring.

[0011] As a further description of the above technical solution:

[0012] The sealing assembly includes a sealing washer, the sealing washer is installed between the extension part and the convex part, and the outer edge of the insertion part abuts against the sealing washer;

[0013] As a further description of the above technical solution:

[0014] The sealing assembly includes a sealing ring, the sealing ring is installed inside the extension part, and the outside of the insertion part is in contact with the sealing ring;

[0015] As a further description of the above technical solution:

[0016] The sealing assembly includes a sealing washer and a sealing ring, the sealing washer is installed between the extension part and the convex part, the sealing ring is installed inside the extension part, and the outside of the insertion part abuts against the sealing ring and the sealing washer respectively;

[0017] As a further description of the above technical solution:

[0018] The sealing washer is L-shaped and is used to wrap the side of the insertion part;

[0019] As a further description of the above technical solution:

[0020] The material of the pipe body from inside to outside is polyvinylidene fluoride layer, epoxy resin layer, ceramic matrix composite layer, glass fiber and stainless steel layer in sequence, and the material at the end of the pipe body from inside to outside is polyvinylidene fluoride layer and stainless steel layer.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by adding an extension part, an insertion part and a convex part at the end of the pipe body, when two pipe bodies are connected, after the insertion part is inserted between the extension part and the convex part, the clamping hoop is locked to squeeze the convex ring, so that the extension part, the insertion part and the convex part can be fully fitted, and with the cooperation of the sealing assembly, the sealing performance of the pipeline connection can be realized, the service life of the pipeline can be prolonged, and the maintenance cost can be reduced.

[0023] 2. In the utility model, the pipe body is sequentially arranged with a polyvinylidene fluoride layer, an epoxy resin layer, a ceramic matrix composite layer, glass fiber and a stainless steel layer from inside to outside to enhance the corrosion resistance, high temperature resistance, structural strength and anti-seepage effect of the pipe body, so that it is suitable for the treatment of highly corrosive, high-temperature and particle-containing sewage. Description of the Drawings

[0024] Figure 1 It is a three-dimensional schematic diagram of a corrosion-resistant and anti-corrosion pipeline proposed by the utility model;

[0025] Figure 2 Structural sectional view of the pipe body of a corrosion-resistant and anti-corrosion pipe proposed by the present utility model;

[0026] Figure 3 is Figure 2 the enlarged view of A in

[0027] Figure 4 Material sectional view of the pipe body of a corrosion-resistant and anti-corrosion pipe proposed by the present utility model.

[0028] Legend:

[0029] 1. Pipe body; 2. Clamp; 3. Extension part; 4. Insertion part; 5. Protrusion part; 6. First conical ring; 7. Second conical ring; 8. Conical groove; 9. Convex ring; 10. Sealing washer; 12. Sealing ring; 13. Polyvinylidene fluoride layer; 14. Epoxy resin layer; 15. Ceramic matrix composite layer; 16. Glass fiber; 17. Stainless steel layer. Specific implementation mode

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Example 1, refer to Figures 1 - 3, An embodiment provided by the utility model: A corrosion-resistant and anti-corrosion pipeline, including a pipe body 1. One end of the pipe body 1 is fixedly connected with an extension part 3 and a convex part 5. The other end of the pipe body 1 is fixedly connected with a plug-in part 4. After two pipe bodies 1 are butted, the plug-in part 4 is inserted between the extension part 3 and the convex part 5. During installation, one pipe body 1 is butted with the end of another pipe body 1, then the notch formed by the plug-in part 4, the extension part 3 and the convex part 5 is aligned, and is pushed into this notch. A clamp 2 is sleeved outside the pipe body 1. After the insertion is completed, the clamp 2 is locked, thereby completing the connection between the two pipe bodies 1. A conical ring one 6 is arranged inside the extension part 3, and a conical ring two 7 is arranged at the inner end of the plug-in part 4. When the two pipe bodies 1 are connected, the conical ring two 7 will also enter the gap between the extension part 3 and the convex part 5 together with the plug-in part 4. A conical groove 8 is also opened inside the plug-in part 4. After the two pipe bodies 1 are aligned, the conical groove 8 is clamped with the conical ring one 6. After the clamp 2 is locked, the extension part 3 is squeezed inward, driving the conical ring one 6 to move together. After the conical ring one 6 and the outer side of the conical groove 8 are clamped, the fastening of the two pipe bodies 1 is completed. A convex ring 9 is arranged at the outer edge of the extension part 3. When the clamp 2 is locked, the clamp 2 will act on the convex ring 9 first, which can cause a certain degree of deformation of the outer port of the extension part 3. During the deformation, the plug-in part 4 will be squeezed to ensure that the extension part 3 is fully in contact with the conical groove 8, thereby further improving the connection strength.

[0032] Refer to Figures 2 - 3 , a sealing component is arranged at the end of the pipe body 1; the sealing component includes a sealing gasket 10. The sealing gasket 10 is installed between the extension part 3 and the convex part 5. The outer edge of the plug-in part 4 abuts against the sealing gasket 10. The sealing gasket 10 is L-shaped and is used to wrap the side of the plug-in part 4. After the plug-in part 4 is inserted between the extension part 3 and the convex part 5, the sealing gasket 10 will be squeezed, causing the sealing gasket 10 to deform, so as to wrap the end of the plug-in part 4 and ensure the sealing performance after installation.

[0033] Refer to Figure 4 , the materials of the pipe body 1 from the inside to the outside are a polyvinylidene fluoride layer 13, an epoxy resin layer 14, a ceramic matrix composite layer 15, a glass fiber 16 and a stainless steel layer 17 in sequence. The polyvinylidene fluoride layer 13, the epoxy resin layer 14, the ceramic matrix composite layer 15, the glass fiber 16 and the stainless steel layer 17 provide chemical corrosion protection, anti-seepage and secondary protection layer, mechanical wear resistance, mechanical strength and corrosion-resistant protection for the outside of the pipeline in sequence. The materials at the end of the pipe body 1 from the inside to the outside are the polyvinylidene fluoride layer 13 and the stainless steel layer 17. At the end of the pipe body 1, in order to ensure the smooth progress of the pipeline connection process, its material is appropriately reduced.

[0034] Embodiment two, refer to Figure 3, different from the above embodiments, in this embodiment, the sealing assembly includes a sealing ring 12. The sealing ring 12 is installed inside the extension part 3, and the outer side of the insertion part 4 is in contact with the sealing ring 12. After adding the sealing ring 12, when the extension part 3 is squeezed by the clamp 2 and acts on the insertion part 4, the sealing ring 12 will be squeezed at the same time, causing the sealing ring 12 to deform, thereby sealing the pipeline.

[0035] Embodiment 3, referring to Figure 3 , different from the above embodiments, in this embodiment, the sealing assembly includes a sealing washer 10 and a sealing ring 12. The sealing washer 10 is installed between the extension part 3 and the convex part 5, and the sealing ring 12 is installed inside the extension part 3. The outer side of the insertion part 4 abuts against the sealing ring 12 and the sealing washer 10 respectively. The sealing washer 10 is L-shaped and is used to wrap the side of the insertion part 4. Adding the sealing washer 10 and the sealing ring 12 at the same time provides multiple protections for the connection of the pipe body 1, thereby further improving the sealing effect of the pipeline connection.

[0036] Working principle: When connecting the pipeline, align the two pipe bodies 1, and then insert the insertion part 4 into the gap between the convex part 5 and the extension part 3. At this time, the conical ring two 7 enters along the guidance of the outer edge of the conical ring one 6. After aligning the two pipe bodies 1 in this way, sleeved the clamp 2 on the interfaces of the two pipe bodies 1 and lock it. At this time, the clamp 2 will act on the convex ring 9 first, causing the convex ring 9 to be squeezed and deformed inward, which can force the conical ring one 6 to abut against the middle of the conical groove 8, completing the locking of the two pipe bodies 1. And after the connection is completed, the insertion part 4 squeezes the sealing washer 10 and the sealing ring 12, causing the sealing washer 10 and the sealing ring 12 to deform, thereby sealing the gap at the connection of the two pipe bodies 1, so as to complete the connection of the pipeline, thereby ensuring the sealing performance and connection strength of the connected pipeline.

[0037] The pipe body 1 is divided into five materials, namely polyvinylidene fluoride layer 13, epoxy resin layer 14, ceramic matrix composite layer 15, glass fiber 16, and ceramic matrix composite layer 15 from inside to outside, which can respectively provide the pipe body 1 with protection against high temperature, corrosion, anti-seepage, wear resistance, high strength and other aspects, greatly improving the performance of the pipeline, so as to be suitable for long-term sewage treatment, while extending the service life of the pipeline and reducing the maintenance cost.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A corrosion-resistant and anti-corrosion pipeline, comprising a pipe body (1), characterized in that: One end of the pipe body (1) is fixedly connected with an extension part (3) and a convex part (5), and the other end of the pipe body (1) is fixedly connected with a plug-in part (4). After two pipe bodies (1) are butted, the plug-in part (4) is plugged between the extension part (3) and the convex part (5). A convex ring (9) is arranged on the outer edge of the extension part (3), a clamp (2) is sleeved outside the pipe body (1), and a sealing component is arranged at the end of the pipe body (1).

2. The corrosion-resistant and anti-corrosion pipeline according to claim 1, characterized in that: A first conical ring (6) is arranged inside the extension part (3), and a second conical ring (7) is arranged at the inner end of the plug-in part (4).

3. The corrosion-resistant and anti-corrosion pipeline according to claim 2, characterized in that: A conical groove (8) is further formed inside the plug-in part (4). After the two pipe bodies (1) are aligned, the conical groove (8) is engaged with the first conical ring (6).

4. The corrosion-resistant and anti-corrosion pipeline according to claim 1, wherein: The sealing component includes a sealing washer (10). The sealing washer (10) is installed between the extension part (3) and the convex part (5), and the outer edge of the plug-in part (4) abuts against the sealing washer (10).

5. The corrosion-resistant and anti-corrosion pipeline according to claim 1, characterized in that: The sealing component includes a sealing ring (12). The sealing ring (12) is installed inside the extension part (3), and the outside of the plug-in part (4) is in contact with the sealing ring (12).

6. The corrosion-resistant and anti-corrosion pipeline according to claim 1, wherein: The sealing component includes a sealing washer (10) and a sealing ring (12). The sealing washer (10) is installed between the extension part (3) and the convex part (5), the sealing ring (12) is installed inside the extension part (3), and the outside of the plug-in part (4) abuts against the sealing ring (12) and the sealing washer (10) respectively.

7. The corrosion-resistant and anti-corrosion pipeline according to claim 4 or 6, characterized in that: The sealing washer (10) is L-shaped and is used for wrapping the side surface of the plug-in part (4).

8. The corrosion-resistant and anti-corrosion pipeline according to claim 1, wherein: The materials of the pipe body (1) from inside to outside are a polyvinylidene fluoride layer (13), an epoxy resin layer (14), a ceramic matrix composite layer (15), glass fiber (16) and a stainless steel layer (17) in sequence. The materials at the end of the pipe body (1) from inside to outside are a polyvinylidene fluoride layer (13) and a stainless steel layer (17).

Images