CN205401974U - Multilayer composite pipeline - Google Patents

Multilayer composite pipeline Download PDF

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Publication number
CN205401974U
CN205401974U CN201620149821.6U CN201620149821U CN205401974U CN 205401974 U CN205401974 U CN 205401974U CN 201620149821 U CN201620149821 U CN 201620149821U CN 205401974 U CN205401974 U CN 205401974U
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cavity
inner tube
outer tube
pipeline
utility
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CN201620149821.6U
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Chinese (zh)
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石开恕
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石开恕
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Abstract

The utility model discloses a multilayer composite pipeline, at least including the outer tube and the anticorrosive wear resistant inner tube that bear pressure, be middle transition layer between outer tube and the inner tube, the inner tube bottom is " protruding " shape for the cavity of inner tube comprises the different cavity of two diameters, and the diameter that more is close the cavity of inner tube bottom is greater than another cavity, link to each other by the adapter cavity between two cavitys, the bottom of outer tube is " protruding " shape, looks adaptation bottom the inner tube, inner tube one end is the toper expansion pipe, and the other end is the socket end with toper expansion pipe looks adaptation. The compound pipe of multilayer of this structure can realize that main engineering materials such as iron and steel, organic material, inorganic material is effectively compound, exerts respective material characteristics and advantage. Have wear -resistingly, anticorrosive simultaneously and operating mode such as expend with heat and contract with cold. The utility model discloses effectively having solved the easy defect of leaking of current compound pipe, having prolonged long pipeline life, the pipeline operates steadily reliably, but wide application in each trades such as mine, chemical industry, oil satisfy pipeline pressure -bearing, special process needs such as anticorrosive, wear -resisting, and economy and social are obvious.

Description

A kind of multilayer composite pipeline
Technical field
This utility model relates to pipe transportation technology field, particularly relates to a kind of multilayer composite pipeline.
Background technology
Existing multiple tube generally uses bi-material, and such as steel-plastic composite, employing two ways carries out compound.Namely pine serves as a contrast compound and tightly serves as a contrast compound, but has certain shortcomings and limitations.Adopt the method that tight lining coordinates to carry out the pipeline of compound, owing to the bi-material coefficient of expansion is inconsistent, be easily generated swelling internal stress, easily leak at connecting portion or damage.And pine lining multiple tube, though considering the solution of expansion issues, but the bad control in expansion clearance, particularly axial gap, and easy crossfire between inner and outer pipes, coupling part easily leaks.
Utility model content
The purpose of this utility model is to solve the defect that existing multiple tube is easily revealed, and has the multilayer composite pipeline of anticorrosion antiwear, high life simultaneously.
The technical solution adopted in the utility model is: a kind of multilayer composite pipeline, at least includes the interior pipe of outer tube and the anticorrosion antiwear bearing pressure, is intermediate layer between described outer tube and interior pipe;It it is " convex " shape bottom said inner tube, the cavity of interior pipe is made up of the cavity that two diameters are different, closer to the diameter of the cavity bottom interior pipe more than another cavity, it is connected by adapter cavity between said two cavity, the bottom of described outer tube is " recessed " shape, suitable with bottom interior pipe, said inner tube one end is tapered expansion joint, and the other end is the socket end suitable with tapered expansion joint.
As further improvement of the utility model, described intermediate layer is elastomer, solid or liquid material.
This utility model adopts and provides the benefit that: the multi-layered composite pipe of this structure, it may be achieved the effective compounds of major project material such as iron and steel, organic material, inorganic material, plays respective material characteristics and advantage.There is wear-resisting, anticorrosion and the operating mode such as expand with heat and contract with cold simultaneously.This utility model efficiently solves the defect that existing multiple tube easily leaks, extending pipeline service life, conduit running is steadily reliable, can be widely applied to the industry-by-industries such as mine, chemical industry, oil, meeting pipeline pressure-bearing, anticorrosion, the special process needs such as wear-resisting, economic and social benefit is obvious.
Accompanying drawing explanation
Fig. 1 is this utility model schematic diagram.
Shown in figure: 1 outer tube, pipe, 3 intermediate layers, 21 tapered expansion joints, 22 socket ends in 2.
Detailed description of the invention
Example below, is described further this utility model.
As it is shown in figure 1, a kind of multilayer composite pipeline, at least include the interior pipe 2 of the outer tube 1 and anticorrosion antiwear bearing pressure, be intermediate layer 3 between described outer tube 1 and interior pipe 2;It it is " convex " shape bottom said inner tube 2, the cavity of interior pipe 2 is made up of the cavity that two diameters are different, closer to the diameter of the cavity bottom interior pipe 2 more than another cavity, it is connected by adapter cavity between said two cavity, the bottom of described outer tube 1 is " recessed " shape, suitable with bottom interior pipe 2, said inner tube 2 one end is tapered expansion joint 21, and the other end is the socket end 22 suitable with tapered expansion joint 21.
It is positioned at the tapered expansion joint 21 of pipe 2 one end, there is expansion compensation and self sealss dual-use function.Contact surface between tapered expansion joint 21 and socket end 22 can be coated with fluid sealant.
The bottom of interior pipe 2 is " convex " shape, it is connected by bell and spigot frame between adjacent two interior pipes, so that it is guaranteed that enough axial expansion gaps, the bottom of outer tube 1 is " recessed " shape, outer tube is suitable with interior pipe, guarantee that the sealing of connection between inner and outer pipes is reliable, coordinate simultaneously and be connected by flange between adjacent outer tube, so that it is guaranteed that whole seal for pipe joints.
The multi-layered composite pipe of this structure adopts three layers combination process, and intermediate layer 3 can absorb according to technological requirement and expand and anticorrosion, and intermediate layer has multiple material and technique available, adapts to different medium and operating mode, and treatment in accordance with local conditions is simple and easy to do, with low cost.Its intermediate layer is elastomer, solid or liquid material, including low-intensity material, heat-barrier material, anti-corrosion material etc..
Using method of the present utility model, first determines inner and outer pipes size according to material and technique, is secondly assembled in outer tube by an interior pipe part, according to medium and technological parameter, fills elastic or low-intensity material, preservative etc. between inner and outer pipes.Then being assembled in outer tube by another part of interior pipe, joint can be coated with fluid sealant.Between multiple tube by Flange joint, owing to have employed the concaveconvex structure of inner and outer pipes, it is ensured that the sealing of multiple tube is reliable.
The multi-layered composite pipe of this structure, it may be achieved the effective compounds of major project material such as iron and steel, organic material, inorganic material, plays respective material characteristics and advantage.There is wear-resisting, anticorrosion and the operating mode such as expand with heat and contract with cold simultaneously.This utility model efficiently solves the defect that existing multiple tube easily leaks, extending pipeline service life, conduit running is steadily reliable, can be widely applied to the industry-by-industries such as mine, chemical industry, oil, meeting pipeline pressure-bearing, anticorrosion, the special process needs such as wear-resisting, economic and social benefit is obvious.
Those skilled in the art should know; protection scheme of the present utility model is not limited only to the above embodiments; various permutation and combination and conversion can also be carried out on the basis of above-described embodiment; under the premise without prejudice to this utility model spirit, the various conversion that this utility model is carried out all fall within protection domain of the present utility model.

Claims (2)

1. a multilayer composite pipeline, is characterized in that at least including bearing the interior pipe (2) of the outer tube (1) of pressure and anticorrosion antiwear, is intermediate layer (3) between described outer tube (1) and interior pipe (2);Said inner tube (2) bottom is " convex " shape, the cavity of interior pipe (2) is made up of the cavity that two diameters are different, the diameter of the cavity bottom interior pipe (2) is more than another cavity, it is connected by adapter cavity between said two cavity, the bottom of described outer tube (1) is " recessed " shape, suitable with interior pipe (2) bottom, said inner tube (2) one end is tapered expansion joint (21), and the other end is the socket end (22) suitable with tapered expansion joint (21).
2. a kind of multilayer composite pipeline according to claim 1, it is characterized in that described intermediate layer (3) be elastomer, solid or liquid material.
CN201620149821.6U 2016-02-29 2016-02-29 Multilayer composite pipeline Active CN205401974U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620149821.6U CN205401974U (en) 2016-02-29 2016-02-29 Multilayer composite pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620149821.6U CN205401974U (en) 2016-02-29 2016-02-29 Multilayer composite pipeline

Publications (1)

Publication Number Publication Date
CN205401974U true CN205401974U (en) 2016-07-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620149821.6U Active CN205401974U (en) 2016-02-29 2016-02-29 Multilayer composite pipeline

Country Status (1)

Country Link
CN (1) CN205401974U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112096971A (en) * 2020-09-01 2020-12-18 中国航发沈阳黎明航空发动机有限责任公司 High temperature resistant pipeline structure suitable for high temperature fluid is carried

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112096971A (en) * 2020-09-01 2020-12-18 中国航发沈阳黎明航空发动机有限责任公司 High temperature resistant pipeline structure suitable for high temperature fluid is carried

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