CN214579478U - Composite pipe conveying pipeline - Google Patents
Composite pipe conveying pipeline Download PDFInfo
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- CN214579478U CN214579478U CN202023263368.7U CN202023263368U CN214579478U CN 214579478 U CN214579478 U CN 214579478U CN 202023263368 U CN202023263368 U CN 202023263368U CN 214579478 U CN214579478 U CN 214579478U
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- steel pipe
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- pipe
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Abstract
The utility model discloses a composite pipe conveying pipeline, which comprises a composite pipeline and a connector, wherein the composite pipeline comprises a carbon steel pipe and a stainless steel pipe, the carbon steel pipe is sleeved outside the stainless steel pipe, the ends of the carbon steel pipe and the stainless steel pipe are welded together, and the periphery of the end of the carbon steel pipe is provided with a positioning groove; the connector comprises two connecting housings and a sealing sleeve, the connecting housings are integrally in a semicircular structure, a semicircular mounting groove is formed in the inner surface of each connecting housing, raised ribs are arranged on two sides of each mounting groove, and an annular gasket is arranged on the inner wall of each sealing sleeve; for two adjacent composite pipelines, the sealing sleeve wraps the outer side of a connecting part formed between the two composite pipelines, and the annular gasket covers a welding part formed between the carbon steel pipe and the stainless steel pipe. The corrosion resistance of the composite pipe conveying pipeline is improved, so that the service life of the composite pipe conveying pipeline is prolonged.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to a compound pipe pipeline.
Background
The transmission tool for long-distance transmission of liquid or gas is widely used, the transmission pipeline is formed by connecting a plurality of steel pipes, and the two steel pipes are connected through a connector. For example: chinese patent No. 201920749835.5 discloses a transfer line comprising a plurality of steel pipes, wherein two adjacent steel pipes are connected by a pipe connector. When in actual use, because the conveying pipeline is used for conveying the emulsion for a long distance, after long-time use, the inner wall of the steel pipe can be corroded, and the service life is shortened. How to design a long service life's pipeline technique is the utility model discloses the technical problem that will solve.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the composite pipe conveying pipeline is provided, so that the corrosion resistance of the composite pipe conveying pipeline is improved, and the service life of the composite pipe conveying pipeline is prolonged.
The technical scheme provided by the utility model is that, a composite pipe conveying pipeline comprises a composite pipeline and a connector, wherein the composite pipeline comprises a carbon steel pipe and a stainless steel pipe, the carbon steel pipe is sleeved outside the stainless steel pipe, the carbon steel pipe is welded with the end part of the stainless steel pipe, and the periphery of the end part of the carbon steel pipe is provided with a positioning groove; the connector comprises two connecting housings and a sealing sleeve, the connecting housings are integrally of a semicircular structure, semicircular mounting grooves are formed in the inner surfaces of the connecting housings, protruding ribs are arranged on two sides of each mounting groove, and an annular gasket is arranged on the inner wall of the sealing sleeve; for two adjacent composite pipelines, the sealing sleeves wrap the outer sides of connecting parts formed between the two composite pipelines, the two connecting casing covers are buckled together, the ribs are inserted into the corresponding positioning grooves, the two mounting grooves are connected together to form an annular groove, the sealing ring is positioned in the annular groove, the annular gasket is clamped between the two composite pipelines, and the annular gasket covers the welding part formed between the carbon steel pipe and the stainless steel pipe.
Furthermore, the composite pipeline also comprises an annular end cover, the annular end cover is made of stainless steel, the inner edge of the annular end cover is welded with the edge of the stainless steel pipe, and the annular end cover covers the end face of the carbon steel pipe.
Furthermore, the outer edge of the annular end cover is provided with a flanging, and the end part of the carbon steel pipe is wrapped by the flanging.
Furthermore, a stainless steel coating is formed on the end face of the composite pipeline, and the end face of the carbon steel pipe and the end face of the stainless steel pipe are covered by the stainless steel coating.
Further, the stainless steel coating also covers the outer circumference ring of the end part of the carbon steel pipe.
Compared with the prior art, the utility model discloses an advantage is with positive effect: by adopting a double-layer pipe structure, the carbon steel pipe on the outer side has higher mechanical strength, and the stainless steel pipe on the inner side has better corrosion resistance and smooth surface and small fluid resistance, so that the corrosion resistance of the composite pipe conveying pipeline is improved, and the service life of the composite pipe conveying pipeline is prolonged; meanwhile, the welding part formed by the carbon steel pipe and the stainless steel pipe is sealed and shielded by the annular gasket on the sealing sleeve, so that the end faces of the carbon steel pipe and the stainless steel pipe are prevented from simultaneously removing liquid to generate potential corrosion, the corrosion resistance is comprehensively and effectively improved, the corrosion resistance of the composite pipe conveying pipeline is improved, and the service life of the composite pipe conveying pipeline is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is one of the structural schematic diagrams of the composite pipe conveying pipeline of the present invention;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
FIG. 3 is a second schematic structural view of the composite pipe conveying pipeline of the present invention;
fig. 4 is a partially enlarged view of the area a in fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-2, the composite pipe conveying pipeline of the embodiment includes a composite pipe 1 and a connector 2, the composite pipe 1 includes a carbon steel pipe 11 and a stainless steel pipe 12, the carbon steel pipe 11 is sleeved outside the stainless steel pipe 12, the ends of the carbon steel pipe 11 and the stainless steel pipe 12 are welded together, and the periphery of the end of the carbon steel pipe 11 is provided with a positioning groove (not marked); the connector 2 comprises two connecting housings 21 and a sealing sleeve 22, the connecting housings 21 are integrally in a semicircular structure, a semicircular mounting groove (not marked) is formed in the inner surface of each connecting housing 21, raised ribs (not marked) are arranged on two sides of each mounting groove, and an annular gasket 221 is arranged on the inner wall of each sealing sleeve 22; for two adjacent composite pipelines 1, the sealing sleeve 22 is wrapped on the outer side of a connecting part formed between the two composite pipelines 1, the two connecting cover shells 21 are buckled together, the ribs are inserted into the corresponding positioning grooves, the two mounting grooves are connected together to form an annular groove, the sealing ring is positioned in the annular groove, the annular gasket 221 is clamped between the two composite pipelines 1, and the annular gasket 221 covers a welding part formed between the carbon steel pipe 11 and the stainless steel pipe 12.
Specifically, the composite pipe conveying pipeline of the embodiment adopts the composite pipe 1 to convey fluid, wherein the outer layer carbon steel pipe 11 has good mechanical strength so as to meet the requirement of outdoor installation; the stainless steel pipe 12 arranged on the inner layer has good corrosion resistance, and the inner wall of the stainless steel pipe 12 is smooth, so that the requirement of smooth flow of fluid can be met.
In the field assembly process, the carbon steel pipe 11 is sleeved outside the stainless steel pipe 12, and then the ends of the carbon steel pipe 11 and the stainless steel pipe 12 are welded together to form the composite pipeline 1; the two adjacent composite pipelines 1 are connected together through the connector 2, in the connection process, the end parts of the two composite pipelines are butted together, the sealing sleeve 22 is sleeved on the end parts of the two adjacent composite pipelines 1, and the end parts of the two composite pipelines 1 tightly clamp the annular gasket 221 so as to shield the welding part formed between the carbon steel pipe 11 and the stainless steel pipe 12 by using the annular gasket 221; finally, the two connecting housings 21 are wrapped at the connecting parts of the two composite pipes 1, and the ribs are clamped in the positioning grooves on the corresponding sides.
Thus, in the actual use process, the fluid flows in the stainless steel tube 12, and at the connection part of the two composite pipelines 1, the welding part formed between the carbon steel tube 11 and the stainless steel tube 12 is sealed and covered by the annular gasket 221, so that the phenomenon of potential corrosion caused by the carbon steel tube 11 and the stainless steel tube 12 being in the liquid medium is effectively reduced, and the corrosion resistance is further improved.
Further, as shown in fig. 3-4, in order to better reduce the occurrence of the galvanic corrosion phenomenon, the composite pipeline 1 further includes an annular end cover 3, the annular end cover 3 is made of stainless steel, an inner edge of the annular end cover 3 is welded to an edge of the stainless steel pipe 12, and the annular end cover 3 covers an end surface of the carbon steel pipe 11. Specifically, the end face of the carbon steel pipe 11 is covered by the annular end cover 3, and the annular end cover 3 is welded with the edge of the stainless steel pipe 12, so that the end face of the composite pipeline 1 can be protected by potential corrosion more effectively.
Preferably, the outer edge of the annular end cover 3 is provided with a flange 31, and the flange 31 is wrapped on the end of the carbon steel pipe 11. Specifically, the end of the carbon steel pipe 11 is completely wrapped by the flange 31, so as to better protect the carbon steel pipe 11.
Similarly, the annular end cap 3 may be replaced by a stainless steel coating, specifically, a stainless steel coating is formed on the end face of the composite pipeline 1, and the stainless steel coating covers the end face of the carbon steel pipe 11 and the end face of the stainless steel pipe 12. Meanwhile, the stainless steel coating also covers the outer peripheral ring of the end of the carbon steel pipe 11.
The utility model also provides an above-mentioned composite pipe pipeline's construction method, include: sleeving a carbon steel pipe outside the stainless steel pipe, and then welding the ends of the carbon steel pipe and the stainless steel pipe together to form a composite pipeline; butting the end parts of the two composite pipelines together, and tightly clamping the annular gasket in the sealing sleeve between the end parts of the two composite pipelines; and covering the two connecting cover shells at the connecting parts of the two composite pipelines, and enabling the ribs to be clamped in the positioning grooves on the corresponding sides.
Compared with the prior art, the utility model discloses an advantage is with positive effect: by adopting a double-layer pipe structure, the carbon steel pipe on the outer side has higher mechanical strength, and the stainless steel pipe on the inner side has better corrosion resistance and smooth surface and small fluid resistance, so that the corrosion resistance of the composite pipe conveying pipeline is improved, and the service life of the composite pipe conveying pipeline is prolonged; meanwhile, the welding part formed by the carbon steel pipe and the stainless steel pipe is sealed and shielded by the annular gasket on the sealing sleeve, so that the end faces of the carbon steel pipe and the stainless steel pipe are prevented from simultaneously removing liquid to generate potential corrosion, the corrosion resistance is comprehensively and effectively improved, the corrosion resistance of the composite pipe conveying pipeline is improved, and the service life of the composite pipe conveying pipeline is prolonged.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. The composite pipe conveying pipeline is characterized by comprising a composite pipeline and a connector, wherein the composite pipeline comprises a carbon steel pipe and a stainless steel pipe, the carbon steel pipe is sleeved outside the stainless steel pipe, the ends of the carbon steel pipe and the stainless steel pipe are welded together, and the periphery of the end of the carbon steel pipe is provided with a positioning groove; the connector comprises two connecting housings and a sealing sleeve, the connecting housings are integrally of a semicircular structure, semicircular mounting grooves are formed in the inner surfaces of the connecting housings, protruding ribs are arranged on two sides of each mounting groove, and an annular gasket is arranged on the inner wall of the sealing sleeve; for two adjacent composite pipelines, the sealing sleeves are wrapped on the outer sides of connecting parts formed between the two composite pipelines, the two connecting casing covers are buckled together, the ribs are inserted into the corresponding positioning grooves, the two mounting grooves are connected together to form an annular groove, the sealing sleeves are located in the annular groove, the annular gasket is clamped between the two composite pipelines, and the annular gasket covers welding parts formed between the carbon steel pipe and the stainless steel pipe.
2. The composite pipe delivery line of claim 1, further comprising an annular end cap made of stainless steel, wherein an inner edge of the annular end cap is welded to an edge of the stainless steel pipe, and wherein the annular end cap covers an end face of the carbon steel pipe.
3. The composite pipe delivery pipeline of claim 2, wherein the outer edge of the annular end cover is provided with a flange, and the flange is wrapped on the end of the carbon steel pipe.
4. The composite pipe transportation pipeline of claim 1, wherein the end face of the composite pipe is formed with a stainless steel coating covering the end face of the carbon steel pipe and the end face of the stainless steel pipe.
5. The composite pipe delivery line of claim 4, wherein the stainless steel coating further covers an outer circumferential ring of the end of the carbon steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023263368.7U CN214579478U (en) | 2020-12-30 | 2020-12-30 | Composite pipe conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023263368.7U CN214579478U (en) | 2020-12-30 | 2020-12-30 | Composite pipe conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214579478U true CN214579478U (en) | 2021-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023263368.7U Active CN214579478U (en) | 2020-12-30 | 2020-12-30 | Composite pipe conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214579478U (en) |
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2020
- 2020-12-30 CN CN202023263368.7U patent/CN214579478U/en active Active
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