Steel-plastic composite pressure pipe

Abstract

The invention discloses a steel-plastic composite pressure pipe, which comprises an outer plastic layer, a steel pipe layer and an inner plastic layer. The outer plastic layer is adhered to the steel pipe layer through an outer adhesive layer, and the steel pipe layer is adhered to the inner plastic layer through an inner adhesive layer to form a composite. The cross section of the steel-plastic composite pressure pipe is circular. The steel-plastic composite pressure pipe is high in pressure and tension resistance, not easy to be damaged in collision, low in resistance loss during fluid conveying since the inner wall is smooth, and free of scaling. The structure integrates rigidity and flexibility, pressure compact in a pipeline system can be quickly eliminated, and water hammer noise is avoided. The inner plastic layer and the outer plastic layer are made of nonpolar polyethylene, stable in chemical performance and not easy to corrode and age in various acid-base environments, so that the service life is prolonged. The steel-plastic composite pressure pipe can be trailed by a magnetic metal detector, embedding of tracking protective marks is not needed, and thereby excavation damage can be avoided, and emergency repairing and maintenance are greatly facilitated.

Description

technical field [0001] The invention relates to a construction pipeline equipment, in particular to a steel-plastic composite pressure pipe. Background technique [0002] In the prior art, ordinary plastic pipes are widely used in many fields such as public buildings, urban water supply pipeline systems, gas delivery systems, etc., but there are many defects in ordinary plastic pipes. Ordinary plastic pipes have poor compressive and tensile properties, and are easily deformed and broken by external collisions or extrusions. Some plastic pipes have rough inner walls, which have high resistance and are prone to scaling when transporting fluids. Ordinary plastic pipes will corrode and age when they are laid in high temperature, various pH environments or transport various acid and alkali solutions, causing huge losses to users and companies. Ordinary plastic pipes have a short lifespan and are easily damaged, which brings great inconvenience to maintenance. Contents of the i...

AI Technical Summary

Problems solved by technology

Ordinary plastic pipes have poor compressive and tensile properties, and are easily deformed and broken by external collisions or extrusions. Some plastic pipes have rough inner walls, which have high resistance and are prone to scaling when transporting fluids

Ordinary plastic pipes will corrode and age when they are laid in high temperature, various pH environments or transport various acid and alkali solutions, causing huge losses to users and companies

Ordinary plastic pipes have short service life and are easily damaged, which brings great inconvenience to maintenance

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