Double-wall corrugated pipe

Abstract

The invention belongs to the field of plastic pipe manufacturing, and particularly relates to a double-wall corrugated pipe. The double-wall corrugated pipe comprises a pipe body, corrugated rings, rotating rings and guide plates, wherein the pipe body is made of a high-strength PVC material; the outer surface of the pipe body is uniformly and fixedly connected with the corrugated rings at intervals; the inner wall of the pipe body is uniformly and rotatably connected with the rotating rings at intervals; the inner surface of each rotating ring is arc-shaped; the guide plates are fixedly arranged at the inner wall surfaces of the rotating ring; and the inclination angles of the guide plates are gradually increased from bottom to top. The double-wall corrugated pipe mainly solves the problems that sludge is easily accumulated at the bottom of a pipeline and cannot be cleaned when a double-wall corrugated pipe is used in a sewer, a large amount of dirty materials are easily accumulated at the turning position of the pipeline, and leakage is easily caused by oxidation corrosion of the outer surface of the double-wall corrugated pipe due to the fact that the double-wall corrugated pipeis laid underground and the underground environment is moist.

Description

technical field [0001] The invention belongs to the field of plastic pipe manufacture, in particular to a double-wall corrugated pipe. Background technique [0002] High-density polyethylene (HDPE) double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. At present, the production process and application technology are very mature. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and the United States. In my country, the promotion and application of HDPE double-wall corrugated pipes are on the rise, and all technical indicators have reached the use standards. The inner wall of the double-wall corrugated pipe usually has blue and black colors...

AI Technical Summary

Problems solved by technology

The present invention is mainly used to solve the problem that when the double-wall corrugated pipe in the prior art is used in the sewer, it is easy to make silt accumulate at the bottom of the pipe and cannot be cleaned, and at the same time, a large amount of dirt is easy to accumulate at the corner of the pipe. The underground environment is relatively humid, which can easily lead to leakage problems caused by oxidation and corrosion on the outer surface of the double-wall corrugated pipe

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