High-temperature-resistant negative-pressure-resistant polytetrafluoroethylene pipeline

Abstract

The invention discloses a high-temperature-resistant negative-pressure-resistant polytetrafluoroethylene pipeline which comprises protection pipes. According to the high-temperature-resistant negative-pressure-resistant polytetrafluoroethylene pipeline, a fixed plate and a movable plate are fixed, so that the two protection pipes and the polytetrafluoroethylene pipe are connected more tightly, damage to the connecting position due to pulling is avoided, and due to arrangement of a partition layer, direct contact of the protection pipes and the outside is isolated, the inner environment of each protection pipe is made stable, a first heat preservation cotton is arranged and plays a role in heat preservation on the protection pipes, liquid is prevented from freezing the protection pipes at a low temperature, the conveying stability of the protection pipes is improved and a metal net is arranged, the protection force on the polytetrafluoroethylene pipe is enhanced. The partition plate is embedded into a sleeve plate, a second heat preservation cotton is added to the closed environment of the partition plate and the sleeve plate, so that the joint of the two protection pipes and the polytetrafluoroethylene pipe is well protected, and the joint is prevented from being damaged due to invasion of the low temperature.

Description

technical field [0001] The invention relates to a polytetrafluoroethylene pipeline, in particular to a high temperature and negative pressure resistant polytetrafluoroethylene pipeline. Background technique [0002] The PTFE pipe is made of high-quality plunger extruded pipe, and the special processing technology is used to make the steel pipe and the plastic pipe tightly combined, which can withstand positive pressure of 1.6Mpa and negative pressure: 77Kpa; it can be used at -60℃~+260 Normal use within ℃, with reliable and excellent corrosion resistance, the main function is to transport strong corrosive gas and liquid at high temperature. [0003] The existing PTFE pipeline has excellent chemical stability, can withstand all strong acids, strong alkalis, strong oxidants, does not interact with various organic solvents, and can withstand high temperature and negative pressure. It is suitable for transporting special gases and liquids, but the existing PTFE pipelines still ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a high-temperature-resistant and negative-pressure polytetrafluoroethylene pipeline to solve the problem that the connection between the polytetrafluoroethylene pipelines proposed in the above-mentioned background technology needs to be fixed by external fastening devices, and the polytetrafluoroethylene It has a very low friction coefficient and is a self-lubricating material. When the PTFE pipe is pulled, it is easy to cause the fastening device to fall off, making the sealing between the PTFE pipes poor. In addition, in colder conditions , the internal stability of the existing PTFE pipes is poor, the cold will easily cause the gas inside to condense into liquid, and the liquid will freeze into ice when it is cold, which is easy to block the problem of PTFE pipes

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