Continuous fiber glass fiber plate stirrup pipe composite arc-top triangular corrugated pipeline

Abstract

The invention discloses a continuous fiber glass fiber plate stirrup pipe composite arc-top triangular corrugated pipeline which comprises an arc-top corrugated pipe. The arc-top corrugated pipe comprises a plastic pressure-bearing inner-layer pipe made of inorganic reinforced plastic and a plastic reinforcement body spirally wound on the outer wall of the plastic pressure-bearing inner-layer pipe; and a continuous fiber pre-impregnated stirrup pipe is fused and pasted on the outer walls of the plastic pressure-bearing inner-layer pipe and the plastic reinforcement body. The outer wall of the inner-layer pipe is integrally wound with a high-strength continuous fiber tows, so that the strength of transverse and vertical deformation force resistance and external extrusion stress resistance of the section of the composite corrugated pipe is greatly improved in a stirrup mode, and then the effect of greatly improving the rigidity SN of the composite corrugated pipe is achieved.

Description

technical field [0001] The invention relates to the technical field of pipes, in particular to a continuous fiber glass fiber board stirrup pipe composite arc-top triangular corrugated pipe. Background technique [0002] In a large number of rain and sewage pipe systems, the conventional caliber distribution is DN300-3000mm. In practical applications, DN100-500mm, rigid ℃ SN≤8KN / M 2 The pipeline usually adopts double flat wall pipe; DN500~800mm just ℃ SN≤12KN / M 2 The pipeline usually adopts inner bellows; DN900~2600mm just ℃ SN≤12KN / M 2 Pipelines are usually steel corrugated pipes. [0003] Double flat-wall pipes, especially pipes larger than DN500mm, have the problems of insufficient rigidity and the outer wall is easily damaged by impact. Pipes with inner bellows larger than DN1200mm also have the problems of insufficient rigidity and the outer wall is easily damaged by impact. The steel belt corrugated pipe is covered by the plastic layer of the steel belt and melted ...

AI Technical Summary

Problems solved by technology

[0005] The existing helically wound corrugated pipes have a common defect problem, that is, the plastic inner layer pipes and hollow corrugated pipes exposed between the helical pitches have insufficient hardness and strength, and cannot withstand external impact loads and sharp materials including stones in the backfill process. impact, while often breakage leads to failure of the pipe network

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