Steel-lined poly tetra fluoroethylene (PTFE) pipe

A technology for lining PTFE pipes and steel pipes, applied in the field of steel lining PTFE pipes, can solve the problems of expansion deformation, bulging and deflation, insufficient pressure resistance, etc., to increase axial support force, improve negative pressure resistance, avoid shedding effect

Inactive Publication Date: 2020-04-10
盐城天圣橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that the existing steel-lined PTFE pipe lining has insufficient pressure resistance, is easy to fall off, bulges, sucks, swells, and deforms. easy to leak

Method used

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  • Steel-lined poly tetra fluoroethylene (PTFE) pipe

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Embodiment Construction

[0018] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] like figure 1 As shown, a steel-lined tetrafluoro pipe includes a steel pipe body 1, a polytetrafluoroethylene lining 5, and a steel wire turn 6,

[0020] The two ends of the steel pipe body 1 are respectively provided with flanges 2, and a plurality of installation holes 3 are evenly arranged on the flange 2 in a circumferential direction, and the polytetrafluoroethylene lining 5 is arranged in the hollow channel of the steel pipe body 1, so that The polytetrafluoroethylene lining 5 is cylindrical, and T-shaped protrusions 4 are respectively arranged at both ends, and the T-shaped protrusions 4 are closely attached to the flange 2,

[0021] The steel wire turn 6 is closely attached to the outer wall of the straight pipe of the polytetrafluoroethylene lining 5, the steel wire is wound on the polytetrafluoroethy...

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Abstract

The invention discloses a steel-lined poly tetra fluoroethylene (PTFE) pipe. The steel-lined PTFE pipe comprises a steel pipe body, a PTFE lining and a steel wire circle, wherein flanges are arrangedat the two ends of the steel pipe body separately, each flange is uniformly provided with a plurality of mounting holes in the circumferential direction, the PTFE lining is arranged in a hollow hole in the steel pipe body and is cylindrical, T-type bulges are arranged at the two ends of the PTFE lining separately, the T-type bulges are tightly attached to the flanges, the steel wire circle is tightly attached to the outer sidewall of a straight pipe of the PTFE lining, a steel wire is wound around the PTFE lining, a resin bonding layer is arranged between the steel wire circle and the inner wall of the steel pipe body, and the resin bonding layer is a modified epoxy resin adhesive. The steel-lined PTFE pipe is of multi-layer composite, the negative pressure resistance of the steel-lined PTFE pipe is improved, falling off, bulging shrinkage and expansion deformation of the PTFE lining are avoided, and meanwhile leakage at a port of the steel-lined PTFE pipe is prevented.

Description

technical field [0001] The invention belongs to the field of polytetrafluoroethylene, in particular to a steel-lined tetrafluoro pipe. Background technique [0002] Steel-lined PTFE pipes, steel-lined polytetrafluoroethylene PTFE pipes and accessories enjoy the reputation of "Plastic King", with excellent temperature resistance and corrosion resistance, and are ideal for nitric acid, sulfuric acid, hydrofluoric acid, phosgene, Conveying equipment for strong corrosive media such as chlorine gas, aqua regia, mixed acid, bromide and other organic solvents. Steel-lined PTFE pipes and accessories that can operate stably at high temperature (within 150°C) and extreme negative pressure conditions for a long time solve the shortcomings of steel-lined PTFE pipes and accessories that cannot withstand negative pressure in the past. system has been widely used. [0003] The existing steel-lined PTFE pipe lining has insufficient pressure resistance, is easy to fall off, bulges and suck...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147F16L23/16
CPCF16L9/147F16L23/16
Inventor 丁宏网丁文一
Owner 盐城天圣橡塑制品有限公司
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