Corrosion-resistant plastic composite pipeline for chemical industry

Abstract

The utility model discloses a corrosion-resistant plastic composite pipeline for chemical engineering, which relates to the technical field of chemical engineering pipelines and comprises a pipe body, the pipe body comprises a plastic outer layer, a reinforcing layer and a corrosion-resistant layer, the plastic outer layer, the reinforcing layer and the corrosion-resistant layer are sequentially arranged from outside to inside, and reinforcing ribs are fixedly arranged on the inner side wall of the corrosion-resistant layer. The plastic outer layer, the reinforcing layer and the corrosion-resistant layer are arranged, the plastic outer layer, the reinforcing layer and the corrosion-resistant layer are combined to form the composite pipeline, the reinforcing ribs are arranged on the inner wall of the corrosion-resistant layer, and one side of each reinforcing rib is of an arc-shaped structure, so that in the use process of the pipeline, the corrosion resistance of the pipeline is improved, and the service life of the pipeline is prolonged. The chemical solution can move towards the middle of the pipeline under the guide of the reinforcing ribs of the arc-shaped structure, so that the impact effect of the chemical solution on the inner wall of the pipeline can be effectively reduced, the situation that the corrosion-resistant layer is damaged due to heavy brushing of the solution can be effectively reduced, and the corrosion resistance of the pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical pipelines, in particular to a corrosion-resistant plastic composite pipeline for chemical industry. Background Art

[0002] Chemical industry is the abbreviation of chemical process, chemical industry and chemical engineering. Any technology that uses chemical methods to change the composition and structure of substances or synthesize new substances belongs to chemical production technology, that is, chemical process. The products obtained are called chemicals or chemical products. The main material of steel-plastic chemical pipe is ultra-high molecular weight polyethylene. Ultra-high molecular weight polyethylene is a thermoplastic engineering plastic with an average molecular weight greater than 2 million, which is polymerized by ethylene and butadiene monomers under the action of catalysts. It has excellent comprehensive performance, and its wear resistance, low temperature resistance, corrosion resistance, self-lubrication and impact resistance are the highest among all plastics. Its wear resistance is better than that of materials such as polytetrafluoroethylene, nylon and carbon steel. It can work for a long time under the conditions of minus 269 degrees to plus 80 degrees. It is called amazing plastic and is an ideal pipe material.

[0003] For example, a leak-proof chemical pipeline with announcement number CN210566749U includes a pipeline body, the outer wall of the pipeline body is fixedly connected with a fireproof layer, the outer wall of the fireproof layer is fixedly connected with a corrosion-resistant layer, the outer wall of the corrosion-resistant layer is movably connected with a protective pad, the outer wall of the protective pad is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a support rod, one end of the support rod is fixedly connected with a protective shell, and the inner wall of the protective shell is movably connected with a movable shaft. The leak-proof chemical pipeline, through the provision of a fireproof layer, corrosion-resistant layer, protective pad, connecting block, support rod, protective shell, adsorption layer, fluorescent paint and warning signs, can enable people to better protect chemical pipelines to prevent leakage of dyes, solve the problem of leakage caused by poor protection of general chemical pipelines, thereby ensuring people's safety and meeting people's needs.

[0004] The above technical solution has some problems in practical application. During use, the chemical pipeline in this technical solution is easily affected by the long-term erosion of the inner wall of the chemical pipeline by the chemical solution, which may cause the corrosion-resistant layer of the inner wall to fall off, thereby affecting its corrosion resistance.

[0005] Therefore, it is necessary to invent a corrosion-resistant plastic composite pipe for chemical industry to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a corrosion-resistant plastic composite pipe for chemical industry to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant plastic composite pipe for chemical use, comprising a pipe body, the pipe body comprising a plastic outer layer, a reinforcement layer and a corrosion-resistant layer, the plastic outer layer, the reinforcement layer and the corrosion-resistant layer are arranged in sequence from the outside to the inside, the inner side wall of the corrosion-resistant layer is fixedly provided with a reinforcing rib, the reinforcing rib is arranged as an annular structure, and one side of the reinforcing rib is arranged as an arc structure, the other side of the reinforcing rib is provided with a groove, and the groove is arranged as an annular structure, a reinforcing block is fixedly provided inside the groove, a plurality of the reinforcing blocks are provided, and the plurality of reinforcing blocks are arranged in a surrounding manner, a plurality of guide grooves are opened on one side of the reinforcing rib arc structure, the guide groove is arranged as an arc structure, and the plurality of guide grooves correspond one to one to the plurality of reinforcing blocks, and an extension groove is provided at the notch of the guide groove.

[0008] Preferably, a plurality of reinforcing ribs are provided, and the plurality of reinforcing ribs are arranged at equal intervals.

[0009] Preferably, the thickness of the plastic outer layer is 1.5-2 mm, and the material of the plastic outer layer is polyvinyl fluoride.

[0010] Preferably, the thickness of the reinforcement layer is 1.5-2 mm, and the material of the reinforcement layer is epoxy resin.

[0011] Preferably, the thickness of the corrosion-resistant layer is 1-1.5 mm, and the material of the corrosion-resistant layer is high-density polyethylene.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model forms a composite pipe by arranging a plastic outer layer, a reinforcement layer and a corrosion-resistant layer, and the plastic outer layer, the reinforcement layer and the corrosion-resistant layer are combined to form a composite pipe. A plurality of reinforcement ribs are arranged on the inner wall of the corrosion-resistant layer, and one side of the reinforcement ribs is arranged as an arc structure. During the use of the pipe, the chemical solution can move toward the middle of the pipe under the guidance of the arc-shaped reinforcement ribs, thereby effectively reducing the impact effect of the chemical solution on the inner wall of the pipe, and further effectively reducing the loss of the corrosion-resistant layer due to the heavy brushing of the solution, so as to improve the corrosion resistance of the pipe;

[0014] 2. The utility model provides a plastic outer layer, which is made of polyvinyl fluoride material. Polyvinyl fluoride has good chemical stability to ensure that the pipeline can be installed in various environments. A reinforcement layer is provided, which is made of epoxy resin. The reinforcement layer of epoxy resin can not only improve the impact resistance of the pipeline, but also effectively bond the plastic outer layer to the corrosion-resistant layer, thereby improving the structural strength of the pipeline. A corrosion-resistant layer made of high-density polyethylene material is provided. High-density polyethylene has excellent corrosion resistance, which can further improve the corrosion resistance of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side sectional schematic diagram of the overall structure of the utility model.

[0017] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] In the figure: 1. pipe body; 2. plastic outer layer; 3. reinforcement layer; 4. corrosion-resistant layer; 5. reinforcement ribs; 6. grooves; 7. reinforcement blocks; 8. guide grooves; 9. extension grooves. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-3 A corrosion-resistant plastic composite pipe for chemical industry shown in the figure comprises a pipe body 1, wherein the pipe body 1 comprises a plastic outer layer 2, a reinforcement layer 3 and a corrosion-resistant layer 4, wherein the plastic outer layer 2, the reinforcement layer 3 and the corrosion-resistant layer 4 are arranged in sequence from the outside to the inside;

[0021] Specifically, the thickness of the plastic outer layer 2 is 1.5-2 mm, and the material of the plastic outer layer 2 is polyvinyl fluoride, which has good chemical stability to ensure that the pipeline can be installed in various environments;

[0022] In addition, the thickness of the reinforcement layer 3 is 1.5-2 mm, and the material of the reinforcement layer 3 is epoxy resin. The reinforcement layer 3 made of epoxy resin can not only improve the impact resistance of the pipeline, but also effectively play a bonding effect between the plastic outer layer 2 and the corrosion-resistant layer 4, thereby improving the structural strength of the pipeline;

[0023] Moreover, the thickness of the corrosion-resistant layer 4 is 1-1.5 mm, and the material of the corrosion-resistant layer 4 is high-density polyethylene, which has excellent corrosion resistance, and can further improve the corrosion resistance of the pipeline;

[0024] More specifically, the inner wall of the corrosion-resistant layer 4 is fixedly provided with a reinforcing rib 5, which is provided in an annular structure, and one side of the reinforcing rib 5 is provided in an arc-shaped structure, and a plurality of reinforcing ribs 5 are provided, and the plurality of reinforcing ribs 5 are provided at equal intervals, and the chemical solution can move toward the middle of the pipeline under the guidance of the arc-shaped reinforcing ribs 5, thereby effectively reducing the impact effect of the chemical solution on the inner wall of the pipeline, and further effectively reducing the loss of the corrosion-resistant layer 4 due to the heavy brushing of the solution, so as to improve the corrosion resistance of the pipeline;

[0025] In addition, a groove 6 is provided on the other side of the reinforcing rib 5, and the groove 6 is provided in an annular structure, and a reinforcing block 7 is fixedly provided inside the groove 6, and a plurality of reinforcing blocks 7 are provided, and the plurality of reinforcing blocks 7 are arranged in a surrounding manner. The arrangement of the groove 6 can reduce the weight of the pipeline, and the arrangement of the reinforcing block 7 can strengthen the structure of the reinforcing rib 5;

[0026] Moreover, a plurality of guide grooves 8 are provided on one side of the arc-shaped structure of the reinforcing rib 5. The guide grooves 8 are arranged in an arc-shaped structure, and the plurality of guide grooves 8 correspond one-to-one to the plurality of reinforcing blocks 7. An extension groove 9 is arranged at the notch of the guide groove 8. The arrangement of the guide groove 8 can enhance the guiding effect of the reinforcing rib 5 on the solution, and the arrangement of the extension groove 9 can ensure that the solution enters the guide groove 8 more smoothly.

[0027] In summary, the utility model forms a composite pipe by arranging a plastic outer layer 2, a reinforcement layer 3 and a corrosion-resistant layer 4, and the plastic outer layer 2, the reinforcement layer 3 and the corrosion-resistant layer 4 are combined. A plurality of reinforcing ribs 5 are arranged on the inner wall of the corrosion-resistant layer 4, and one side of the reinforcing rib 5 is arranged as an arc structure. During the use of the pipe, the chemical solution can move toward the middle of the pipe under the guidance of the arc-shaped reinforcing rib 5, thereby effectively reducing the impact effect of the chemical solution on the inner wall of the pipe, and further effectively reducing the loss of the corrosion-resistant layer 4 due to the heavy brushing of the solution, so as to improve the corrosion resistance of the pipe. By setting a plastic outer layer 2, the plastic outer layer is set to polyvinyl fluoride material, polyvinyl fluoride has good chemical stability to ensure that the pipeline can be installed in various environments, and by setting a reinforcement layer 3, the material of the reinforcement layer 3 is epoxy resin. The reinforcement layer 3 of epoxy resin material can not only improve the impact resistance of the pipeline, but also effectively play a bonding effect between the plastic outer layer 2 and the corrosion-resistant layer 4, thereby improving the structural strength of the pipeline. By setting a corrosion-resistant layer 4 made of high-density polyethylene material, high-density polyethylene has excellent corrosion resistance, which can further improve the corrosion resistance of the pipeline.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A corrosion-resistant plastic composite pipe for chemical industry, comprising a pipe body (1), characterized in that: The tube body (1) comprises a plastic outer layer (2), a reinforcement layer (3) and a corrosion-resistant layer (4), wherein the plastic outer layer (2), the reinforcement layer (3) and the corrosion-resistant layer (4) are arranged in sequence from the outside to the inside, a reinforcement rib (5) is fixedly arranged on the inner side wall of the corrosion-resistant layer (4), the reinforcement rib (5) is arranged in an annular structure, and one side of the reinforcement rib (5) is arranged in an arc-shaped structure, a groove (6) is arranged on the other side of the reinforcement rib (5), and the groove (6) is arranged in an annular structure, a reinforcement block (7) is fixedly arranged inside the groove (6), a plurality of reinforcement blocks (7) are arranged, and the plurality of reinforcement blocks (7) are arranged in a surrounding manner, a plurality of guide grooves (8) are opened on one side of the arc-shaped structure of the reinforcement rib (5), the guide groove (8) is arranged in an arc-shaped structure, and the plurality of guide grooves (8) correspond to the plurality of reinforcement blocks (7) one by one, and an extension groove (9) is arranged at the notch of the guide groove (8).

2. The corrosion-resistant plastic composite pipe for chemical industry according to claim 1, characterized in that: A plurality of reinforcing ribs (5) are provided, and the plurality of reinforcing ribs (5) are arranged at equal intervals.

3. The corrosion-resistant plastic composite pipe for chemical industry according to claim 2, characterized in that: The thickness of the plastic outer layer (2) is 1.5-2 mm, and the material of the plastic outer layer (2) is polyvinyl fluoride.

4. The corrosion-resistant plastic composite pipe for chemical industry according to claim 3, characterized in that: The thickness of the reinforcement layer (3) is 1.5-2 mm, and the material of the reinforcement layer (3) is epoxy resin.

5. The corrosion-resistant plastic composite pipe for chemical industry according to claim 4, characterized in that: The thickness of the corrosion-resistant layer (4) is 1-1.5 mm, and the material of the corrosion-resistant layer (4) is high-density polyethylene.

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