HDPE (high-density polyethylene) double-wall corrugated pipe cooling device

Abstract

The invention discloses an HDPE (high-density polyethylene) double-wall corrugated pipe cooling device which comprises an outer sleeve body (1) and a vacuum water jacket (2), wherein a spiral groove is formed in the outer surface of the vacuum water jacket (2) along the axial direction; air suction holes (21) are formed in the bottom of the spiral groove; a section of water cavity (22) is arranged on the vacuum water jacket (2); a water inlet (223) is formed in the lower end of the water cavity (22) while a water outlet (224) is formed in the upper lend of the water cavity (22); a plurality of fixing pieces (221) are arranged on the water cavity (22) and penetrate through a heat insulation plate (222). According to the HDPE double-wall corrugated pipe cooling device, the water cavity, the spiral groove and the heat insulation plate are arranged on the vacuum water jacket, so that the formed process is improved, the appearance and mechanical performance of the inner wall of an HDPE double-wall corrugated pipe are stable under the action of uniform and full cooling, the production efficiency can be improved, the cost is lowered, and the application range is widened.

Description

technical field [0001] The invention relates to the processing of HDPE double-wall corrugated pipes, in particular to a cooling device for HDPE double-wall corrugated pipes. Background technique [0002] HDPE is high-density polyethylene, which has good waterproof, anti-electricity and impact resistance properties. The HDPE double-wall corrugated pipe produced by it has the characteristics of light weight, high pressure resistance, good toughness, fast construction and long life. In the production process, when HDPE double-wall corrugated pipe is cooled and shaped in the prior art, water cooling is usually used. Due to the high specific heat of water, when the HDPE double-wall corrugated pipe starts to cool, the temperature difference is large. As the cooling continues The temperature difference between the cooling water and the HDPE double-wall corrugated pipe is reduced, which makes the cooling and shaping of the HDPE double-wall corrugated pipe not uniform enough, the app...

AI Technical Summary

Problems solved by technology

[0002] HDPE is high-density polyethylene, which has good waterproof, anti-electricity and impact resistance properties. The HDPE double-wall corrugated pipe produced by it has the characteristics of light weight, high pressure resistance, good toughness, fast construction and long life. In the production process, when HDPE double-wall corrugated pipe is cooled and shaped in the prior art, water cooling is usually used. Due to the high specific heat of water, when the HDPE double-wall corrugated pipe starts to cool, the temperature difference is large. As the cooling continues The temperature difference between the cooling water and the HDPE double-wall corrugated pipe is reduced, which makes the cooling and shaping of the HDPE double-wall corrugated pipe not uniform enough, the appearance and mechanical properties are not stable enough, especially at the position of the card interface, the material loss is large, and the product quality is not high.

Images