What is the role of polyurethane wrapped jacket tube? Dacheng Xiangdong Insulation Refractory Material Factory 13473696600 15731614448
It is well known that the polyurethane insulation pipe is a three-layer structure, so what material is the outermost layer structure made of? What role can it play? Steel casings are welded by high strength, and the waterproof sealing performance is very reliable. In addition, the high temperature resistance is unmatched by other external protection tubes. Let me talk about the advantages of steel casing.
1, anti-corrosion layer: protect the outer steel pipe to avoid corrosive corrosion of the steel pipe, extend the service life of the steel pipe.
2, working steel pipe: to ensure the normal flow of the transport medium.
3, polyurethane foam layer: to ensure the temperature of the medium, to ensure that the surface of the outer protective tube is kept at normal temperature.
4, barrier, reflective layer: to ensure that the organic foam material does not enter the inorganic hard high temperature layer, reflecting part of the high temperature layer heat.
5, inorganic hard insulation layer: high temperature resistance, to ensure the interface temperature with the organic insulation layer, to ensure that the foam is not carbonized.
6, drag reduction layer: to ensure that the working steel tube thermal expansion and contraction free movement.
7, outer protective steel pipe: protect the insulation layer from groundwater erosion, support the working pipe and can withstand certain external loads to ensure the normal operation of the working pipe.
In fact, this outer steel casing can also play a protective role in the transportation process. The polyurethane insulation pipe is very huge, and friction will inevitably occur during transportation. If the outer steel casing is not strong, even if the installation is successful, There are various post-maintenance work, so the advantages of steel casing are very prominent.
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