Wear-resistant device for plastic-coated processing pipeline

Abstract

The utility model provides a wear-resistant device for a plastic-coated processing pipeline, which relates to the technical field of pipelines and comprises a plastic-coated processing pipe body, the plastic-coated processing pipe body comprises an elbow connecting pipe, the two ends of the elbow connecting pipe are communicated with straight pipe components, and connecting components are arranged at the joints of the elbow connecting pipe and the straight pipe components. The connecting straight pipe and the straight pipe lining are of a split structure, when the straight pipe lining needs to be maintained regularly after being used for a long time, the straight pipe assembly is detached from the elbow connecting pipe, the straight pipe lining is taken down from the connecting straight pipe to be replaced under the action of the strip-shaped sliding groove and the strip-shaped sliding block, and compared with a welding fixing mode, the connecting straight pipe and the straight pipe lining are convenient to replace. By means of the mode, the straight pipe lining is more convenient to maintain, further, under the action of the drainage groove, drainage is conducted through the drainage groove, the liquid forms a rotating vortex when flowing, therefore, turbulent flow and resistance of the fluid in the pipeline are reduced, the flowing efficiency of the fluid is improved, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a wear-resistant device for plastic-coated pipelines. Background Art

[0002] Description of pipeline corrosion phenomenon Corrosion can be understood as a chemical reaction of materials in their environment, which will cause the loss of pipeline materials and lead to failure of pipeline components or even the entire pipeline system. In the pipeline system, the definition of corrosion is: based on the specific pipeline environment, chemical reactions, electrochemical reactions and microbial erosion occur in all metal and non-metal materials in the pipeline system.

[0003] In actual work, pipe wear is an important consideration, especially under high flow rates, high solid content or other specific working conditions, which may lead to the following wear conditions: Surface wear: Wear on the surface of plastic-coated pipes is the most common type; this wear is usually caused by friction between particles, sand or solid particles carried in the fluid and the coating surface when moving inside the pipe; even if the coating has a certain hardness and wear resistance, surface wear may gradually occur under the action of long-term high-speed flow; Wear caused by chemical corrosion: Certain chemicals may cause chemical erosion to the plastic-coated coating. Although this erosion is usually not direct "wear", it will reduce the mechanical properties of the coating, thereby increasing the risk of mechanical wear of the coating; Abrasive wear: When the liquid contains hard particles or abrasives, these particles may rub against the inside of the pipe and damage the coating surface, especially under high-speed flow or high pressure, the abrasive effect will aggravate the wear of the coating.

[0004] Therefore, the utility model proposes a wear-resistant device for plastic-coated processing pipelines. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a wear-resistant device for plastic-coated processing pipelines.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wear-resistant device for plastic-coated processing pipes, comprising a plastic-coated processing pipe body, the plastic-coated processing pipe body comprising an elbow connecting pipe, both ends of the elbow connecting pipe are connected with straight pipe components, and a connecting component is provided at the connection between the elbow connecting pipe and the straight pipe component;

[0007] The straight pipe assembly includes a connecting straight pipe, the inner wall of which is provided with a strip slider, the strip sliders are distributed in a ring shape, and the angles between two adjacent strip sliders are equal, a straight pipe liner is slidably connected inside the connecting straight pipe, and a drainage groove is opened in the straight pipe liner.

[0008] As a preferred embodiment, a ceramic sleeve is installed on the outer wall of the connecting straight pipe, and the inner wall of the ceramic sleeve is matched with the outer wall of the connecting straight pipe.

[0009] The beneficial effect of adopting the above further scheme is that during use, the outer wall of the connected straight pipe is protected by the ceramic sleeve. Since the ceramic sleeve is often made of wear-resistant ceramic materials, such as aluminum oxide, silicon carbide, etc., these materials have extremely high hardness and wear resistance and can effectively resist mechanical wear on the pipeline surface, especially in the case of high-speed fluid or fluid containing abrasives. The ceramic material has good resistance to chemical corrosion and can reduce the damage to the pipeline surface caused by corrosion, which makes the ceramic sleeve particularly useful in pipelines handling corrosive liquids or gases.

[0010] As a preferred embodiment, a strip-shaped slide groove is provided on the outer wall of the straight tube liner, and the straight tube liner is slidably connected to the strip-shaped sliding block via the strip-shaped slide groove.

[0011] The beneficial effect of adopting the above-mentioned further scheme is: through the mutual clamping between the strip slide groove and the strip slider, the straight tube liner can be slidably connected in the connecting straight tube, and under the action of the strip slide groove and the strip slider, the straight tube liner and the connecting straight tube are limited to prevent the straight tube liner from rotating in the connecting straight tube after being pushed by the liquid under the action of the drainage groove during use.

[0012] As a preferred implementation, an elbow liner is embedded in the inner wall of the elbow connecting pipe.

[0013] The beneficial effect of adopting the above-mentioned further scheme is: the inner wall of the elbow connecting pipe is protected by the elbow lining. Since the elbow connecting pipe is the turning point of the pipeline section, the fluid impact that the elbow connecting pipe is subjected to for a long time is greater than that of the straight pipe, and therefore it is also susceptible to corrosion. The elbow lining usually adopts high-hardness alloy materials, such as tungsten-cobalt alloy, nickel-based alloy, etc. These materials have excellent wear resistance. In the curved part of the pipeline, the fluid may produce greater friction and wear when passing through. The elbow lining can effectively reduce these wears and extend the service life of the pipeline. The elbow lining has good corrosion resistance and can withstand the corrosion of the inner wall of the pipeline by chemicals. This is very important for pipelines handling corrosive liquids or gases, and can reduce the risk of pipe wall damage and leakage caused by corrosion.

[0014] As a preferred embodiment, the connecting assembly includes a snap-in sleeve, of which two are provided, and the two snap-in sleeves are snap-connected on both sides of the connection between the elbow connecting pipe and the connecting straight pipe, and limiting bolts are provided on both sides of the two snap-in sleeves, and a nut is threadedly connected to the bottom of the limiting bolts.

[0015] The beneficial effect of adopting the above-mentioned further scheme is: the elbow connecting pipe and the straight pipe assembly are fixedly connected through the connecting assembly. During use, the clamping sleeve is clamped on the elbow connecting pipe to align the inner walls of the pipes. The two clamping sleeves are further clamped on both sides of the connection between the elbow connecting pipe and the connecting straight pipe, so that the clamping sleeve and the elbow connecting pipe and the connecting straight pipe are limited to prevent the elbow connecting pipe from being separated from the connecting straight pipe during use. The two clamping sleeves are further limited by the limit bolts and nuts to prevent the two clamping sleeves from being separated during use.

[0016] As a preferred implementation manner, the drainage groove is a threaded structure, and the depth of the drainage groove is 10-15 mm.

[0017] The beneficial effect of adopting the above-mentioned further scheme is: through the design of the drainage groove, the straight pipe assembly can effectively guide the flow direction of the fluid during use under the action of the drainage groove, reduce the turbulence and resistance of the fluid inside the pipeline, and improve the flow efficiency of the fluid. By optimizing the path and direction of the fluid flow, the threaded drainage groove can reduce the friction resistance of the fluid when passing through the pipeline, thereby reducing the pressure loss in the system, saving energy and improving the operating efficiency of the pipeline. The provision of a threaded drainage groove inside the pipeline can help maintain the uniform flow of the fluid and avoid the diversion of liquid or gas in the pipeline, thereby maintaining the stability and consistency of the system.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] 1. In the utility model, the connecting straight pipe and the straight pipe liner are split structures. When the straight pipe liner is used for a long time, it needs regular maintenance. At this time, the straight pipe assembly is removed from the elbow connecting pipe, and under the action of the strip slide groove and the strip slider, the straight pipe liner is removed from the connecting straight pipe for replacement. Compared with the welding fixing method, this method is more convenient in maintaining the straight pipe liner. Further, under the action of the drainage groove, the drainage is drained through the drainage groove, so that the liquid forms a rotating vortex when it flows, thereby reducing the turbulence and resistance of the fluid inside the pipeline, improving the flow efficiency of the fluid, and thus improving the working efficiency of the device.

[0020] 2. In the utility model, under the action of the connecting assembly, the installation speed of the straight pipe assembly connection is faster than that of the flange connection. It is only necessary to clamp the two clamping sleeves at the connection of the two pipes, and limit the two clamping sleeves by limiting the position of the limit bolts and nuts to complete the connection. The flange connection requires aligning the bolt holes, installing gaskets and bolts, which requires more time and tools, thereby further improving the work efficiency of the pipeline during maintenance and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a front view of a wear-resistant device for plastic-coated processing pipelines according to the utility model;

[0022] Figure 2 This is a disassembled diagram of a wear-resistant device for plastic-coated processing pipelines of the utility model;

[0023] Figure 3 This is a structural diagram of an elbow connecting pipe in a wear-resistant device for plastic-coated processing pipelines of the utility model;

[0024] Figure 4 This is a structural diagram of a connecting component in a wear-resistant device for plastic-coated processing pipelines of the utility model;

[0025] Figure 5 This is a disassembled diagram of a straight pipe component in a wear-resistant device for plastic-coated processing pipes according to the utility model.

[0026] Reference numerals:

[0027] 1. Plastic coated tube body;

[0028] 2. Elbow connecting pipe; 21. Elbow lining;

[0029] 3. Straight pipe assembly; 31. Connecting straight pipe; 32. Strip slider; 33. Ceramic sleeve; 34. Straight pipe lining; 341. Strip slide; 35. Drainage groove;

[0030] 4. Connecting assembly; 41. Snap-fit ​​sleeve; 42. Limit bolt; 43. Nut. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figure 1-5As shown, the utility model provides a technical solution: a wear-resistant device for plastic-coated processing pipelines, comprising a plastic-coated processing pipe body 1, the plastic-coated processing pipe body 1 comprises an elbow connecting pipe 2, both ends of the elbow connecting pipe 2 are connected with a straight pipe assembly 3, and a connecting assembly 4 is arranged at the connection between the elbow connecting pipe 2 and the straight pipe assembly 3; the straight pipe assembly 3 comprises a connecting straight pipe 31, the inner wall of the connecting straight pipe 31 is provided with a strip slider 32, the strip slider 32 is distributed in an annular shape, and the angles between two adjacent strip sliders 32 are equal, the connecting straight pipe 31 is slidably connected with a straight pipe liner 34, the straight pipe liner 34 is provided with a drainage groove 35, the drainage groove 35 is a threaded structure, the depth of the drainage groove 35 is 10-15 mm, and the outer wall of the straight pipe liner 34 is provided with a strip slide groove 341 The straight pipe liner 34 is slidably connected to the strip slider 32 through the strip slide groove 341. Through the split structural design between the straight pipe 31 and the straight pipe liner 34, after the straight pipe liner 34 has been used for a long time, when it is repaired, the straight pipe assembly 3 is removed from the elbow connecting pipe 2, and under the action of the strip slide groove 341 and the strip slider 32, the straight pipe liner 34 is removed from the connecting straight pipe 31 for replacement. Compared with the welding fixing method, this method is more convenient when maintaining the straight pipe liner 34. Further, under the action of the drainage groove 35, the drainage is drained through the drainage groove 35, so that the liquid forms a rotating vortex when it flows, thereby reducing the turbulence and resistance of the fluid inside the pipeline, improving the flow efficiency of the fluid, and solving the technical problem of replacing the straight pipe liner 34.

[0033] Further, such as Figure 2 - Figure 4 As shown: the connecting component 4 includes a clamping sleeve 41, of which there are two, and the two clamping sleeves 41 are clamped on both sides of the connection between the elbow connecting pipe 2 and the connecting straight pipe 31, and limiting bolts 42 are provided on both sides of the two clamping sleeves 41, and nuts 43 are threadedly connected to the bottom of the limiting bolts 42, so that the elbow connecting pipe 2 and the straight pipe component 3 are fixedly connected through the connecting component 4. During use, the clamping sleeve 41 is clamped on the elbow connecting pipe 2 so that the inner walls of the pipes are aligned, and the two clamping sleeves 41 are further clamped on both sides of the connection between the elbow connecting pipe 2 and the connecting straight pipe 31, so that the clamping sleeve 41 and the elbow connecting pipe 2 and the connecting straight pipe 31 are limited, so as to prevent the elbow connecting pipe 2 from being separated from the connecting straight pipe 31 during use, and further limit the two clamping sleeves 41 by limiting the limit bolts 42 and the nuts 43, so as to prevent the two clamping sleeves 41 from being separated during use, thereby solving the technical problem of connecting the pipes.

[0034] The above solution also has the problem that the connecting straight pipe 31 is easily worn during use. Figure 5As shown: In the present embodiment, a ceramic sleeve 33 is installed on the outer wall of the connecting straight pipe 31, and the inner wall of the ceramic sleeve 33 is matched with the outer wall of the connecting straight pipe 31. The outer wall of the connecting straight pipe 31 is protected by the ceramic sleeve 33. Since the ceramic sleeve 33 is often made of wear-resistant ceramic materials, such as alumina, silicon carbide, etc., these materials have extremely high hardness and wear resistance, and can effectively resist mechanical wear on the surface of the pipeline, especially in the case of high-speed fluid or fluid containing abrasives, the ceramic material has good resistance to chemical corrosion and can reduce the damage to the pipeline surface caused by corrosion, which makes the ceramic sleeve 33 particularly useful in pipelines for handling corrosive liquids or gases.

[0035] The above solution also has the problem that the elbow connecting pipe 2 is easily worn during use. Figure 3 As shown: In the present scheme, the inner wall of the elbow connecting pipe 2 is embedded with an elbow lining 21, and the inner wall of the elbow connecting pipe 2 is protected by the elbow lining 21. Since the elbow connecting pipe 2 is the turning point of the pipeline part, the elbow connecting pipe 2 is subjected to greater fluid impact for a long time than the straight pipe, so it is also susceptible to corrosion. The elbow lining 21 is usually made of high-hardness alloy materials, such as tungsten-cobalt alloy, nickel-based alloy, etc. These materials have excellent wear resistance. In the curved part of the pipeline, greater friction and wear may be generated when the fluid passes through. The elbow lining 21 can effectively reduce these wears and extend the service life of the pipeline. In addition, the elbow lining 21 has good corrosion resistance and can withstand the corrosion of the inner wall of the pipeline by chemicals. This is very important for pipelines that handle corrosive liquids or gases, and can reduce the risk of pipe wall damage and leakage caused by corrosion.

[0036] Working principle:

[0037] like Figure 1-5 As shown, firstly, the clamping sleeve 41 is clamped on the elbow connecting pipe 2 so that the inner wall of the pipe is aligned, and further, the two clamping sleeves 41 are clamped on both sides of the connection between the elbow connecting pipe 2 and the connecting straight pipe 31 so that the clamping sleeve 41 and the elbow connecting pipe 2 and the connecting straight pipe 31 are limited, and further the two clamping sleeves 41 are limited by the limiting bolt 42 and the nut 43. During use, the drainage groove 35 is used to drain the liquid, so that the liquid forms a rotating vortex when it flows, thereby reducing the turbulence and resistance of the fluid inside the pipe and improving the flow efficiency of the fluid.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A wear-resistant device for plastic-coated processing pipelines, characterized in that: The invention comprises a plastic-coated processed pipe body (1), wherein the plastic-coated processed pipe body (1) comprises an elbow connecting pipe (2), both ends of the elbow connecting pipe (2) are connected to a straight pipe assembly (3), and a connecting assembly (4) is provided at the connection between the elbow connecting pipe (2) and the straight pipe assembly (3); The straight pipe assembly (3) comprises a connecting straight pipe (31), the inner wall of the connecting straight pipe (31) is provided with a strip-shaped slider (32), the strip-shaped sliders (32) are distributed in a ring shape, and the included angles between two adjacent strip-shaped sliders (32) are equal, the connecting straight pipe (31) is slidably connected with a straight pipe liner (34), and a drainage groove (35) is provided in the straight pipe liner (34).

2. The wear-resistant device for plastic-coated pipes according to claim 1, characterized in that: A ceramic sleeve (33) is sleeved on the outer wall of the connecting straight pipe (31), and the inner wall of the ceramic sleeve (33) is matched with the outer wall of the connecting straight pipe (31).

3. The wear-resistant device for plastic-coated pipes according to claim 1, characterized in that: The outer wall of the straight tube liner (34) is provided with a strip-shaped sliding groove (341), and the straight tube liner (34) is slidably connected to the strip-shaped sliding block (32) via the strip-shaped sliding groove (341).

4. The wear-resistant device for plastic-coated pipes according to claim 1, characterized in that: The inner wall of the elbow connecting pipe (2) is embedded with an elbow lining (21).

5. The wear-resistant device for plastic-coated pipes according to claim 1, characterized in that: The connection assembly (4) comprises a clamping sleeve (41), two of which are provided, and the two clamping sleeves (41) are clamped on both sides of the connection between the elbow connecting pipe (2) and the connecting straight pipe (31), and both sides of the two clamping sleeves (41) are provided with limit bolts (42), and the bottom of the limit bolts (42) is threadedly connected with a nut (43).

6. The wear-resistant device for plastic-coated pipes according to claim 1, characterized in that: The drainage groove (35) is a threaded structure, and the depth of the drainage groove (35) is 10-15 mm.

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