Manufacturing and processing technology of pipeline polyurethane foam plastic thermal insulation layer

Abstract

The invention relates to a manufacturing and processing technology of a pipeline polyurethane foam plastic thermal insulation layer. The manufacturing and processing technology of the pipeline polyurethane foam plastic thermal insulation layer uses pipeline polyurethane foam plastic thermal insulation layer manufacturing and processing equipment, the pipeline polyurethane foam plastic thermal insulation layer manufacturing and processing equipment comprises a base, a turnover unit and a fixing device, wherein the turnover unit is installed on the upper surface of the base, and the fixing device is arranged on the turnover unit. The manufacturing and processing technology can solves the problems that when a fixing device is used for fixing a pipeline and an anti-corrosion and anti-compression protective layer, the fixing device cannot be located at a proper position, so that the pipeline and the anti-corrosion and anti-compression protective layer are not firmly fixed, gaps between thepipeline and the anti-corrosion and anti-compression protective layer are not uniform, and the thickness of the formed polyurethane foam plastic thermal insulation layer is inconsistent, so that the thermal insulation effect of the polyurethane foam plastic thermal insulation layer is influenced, and when the gaps between the pipeline and the anti-corrosion and anti-compression protective layer are filled with polyurethane foam plastic, uneven filling of the polyurethane foam plastic occurs.

Description

technical field [0001] The invention relates to the field of processing of pipeline insulation layers, in particular to a production and processing technology of pipeline polyurethane foam plastic insulation layers. Background technique [0002] The porosity structure of the polyurethane foam insulation layer is stable, and it is basically a closed-cell structure. It not only has excellent thermal insulation performance, but also has good freeze-thaw resistance and sound absorption. The average lifespan of the rigid foam polyurethane insulation structure can reach more than 30 years under normal use and maintenance conditions; it can be achieved during the life of the structure under normal use conditions in dry, wet or galvanic corrosion, and due to insects, fungi or algae growth, or due to external influences such as rodent damage, will not be damaged. Rigid polyurethane has low thermal conductivity and good thermal performance. When the density of rigid polyurethane is 3...

AI Technical Summary

Problems solved by technology

At present, when the polyurethane foam insulation layer of pipelines is produced and processed, when the outer wall of the liquid conveying pipeline needs to be wrapped with the polyurethane foam insulation layer of the pipeline, the outer wall of the pipeline must be covered with a layer of anti-corrosion and pressure-resistant protective layer, so that the polyurethane foam can be filled into the pipeline and anti-corrosion Between the anti-corrosion protection layers, in the whole process of making the insulation layer, there are the following problems: Since the pipeline and the anti-corrosion and anti-pressure protection layer have a certain weight, when using the fixing device to fix the pipeline and the anti-corrosion and anti-pressure protection layer , the fixing device cannot be placed in a suitable position, so that the fixing of the pipeline and the anti-corrosion and pressure-resistant protective layer is not firm, resulting in uneven gaps between the pipeline and the anti-corrosion and pressure-resistant protective layer, and the molded polyurethane foam insulation layer is also There will be inconsistent thickness, which will affect the thermal insulation effect of the polyurethane foam insulation layer; when the polyurethane foam is filled into the gap between the pipe and the anti-corrosion and pressure-resistant protective layer, the polyurethane foam filling will be uneven and insufficient.

Images