High molecular weight high density polyethylene (HWHDPE) hollow wall structure wall composite pipe

Abstract

The utility model discloses a high molecular weight high density polyethylene (HMWHDPE) hollow wall structure wall composite pipe, which is characterized in that a lining pipe and a strip-shaped single body are formed by extruding high molecular weight high density polyethylene, and a double-layer composite structure is adopted compared with an existing hollow wall pipeline. The strip-shaped single bodies and the steel strips are staggered so that the ring stiffness of the outer side can be improved, the anti-pressure capacity can be enhanced, the oval inner cavities in the low wave crests are closed, the good buffering capacity is achieved, meanwhile, the good sound insulation effect is achieved, noise formed by internal fluid is reduced, and the solid transmission path of sound waves is prolonged by matching with the arrangement of the upper arch-shaped notches. By means of the closed oval inner cavity, the strip-shaped single bodies and the lining pipe have a higher combination face, the combination strength is higher after hot melting bonding, the narrow and high high wave crests have higher rigidity, the steel strip can bear main pressure and disperse external pressure of low wave crests, the height of the arch-shaped notches is lower than 50% of the high wave crests, and therefore noise is reduced. And enough rigidity of the high wave crest is ensured.

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