Pipeline directly buried laying technology has been developed in China for several decades. There are two general explanations for the purpose of polyurethane directly buried insulation pipe: one is to ensure that the pipeline can operate steadily in the open long term; the other is to ensure that the insulation pipe can play a good thermal insulation effect without wasting energy and destroying Garden greening.
With the progress of society and the development of science and technology, various kinds of jacket insulating pipes come out directly, and the varieties of products become more and more different. Buried polyurethane direct-buried insulation pipe has good thermal insulation performance, and its heat loss is only 25% of the traditional pipe. Long-term operation can save a lot of energy and significantly reduce energy costs. Its construction is cumbersome, energy-saving and anticorrosive effect is remarkable, and it is widely used in various heating, refrigeration, oil transportation, chemical and other industrial pipelines for heat preservation.
One aspect is the structure and performance of insulation pipe. The polyurethane prefabricated insulation pipe is constructed with internal maintenance layer, thermal insulation layer and external maintenance layer from inside to outside. The inner maintenance layer is a steel pipe with delivery medium, which has good corrosion resistance and waterproof performance. The rigid polyurethane foam insulation layer between the steel tube and the outer maintenance layer is made by the tube tube foaming technology, which makes the three parts closely separated. The outer maintenance layer is the high density polyethylene outer casing. Generally speaking, the thermal insulation performance of polyurethane prefabricated insulating pipes is better than that of traditional insulating pipes, and the effect of thermal insulation and cooling is better.
The second aspect is industrial consumption. Pre-customized polyurethane prefabricated insulating pipes are more conducive to the practical consumption of insulating pipes. They have great sensitivity and compliance. They can design directly buried insulating pipes with different parameters according to different needs.
The third aspect is from the laying way. Traditional heat preservation pipes are laid by trench and overhead, which have high cost and long construction time. However, polyurethane prefabricated insulation pipes are laid directly, occupying less land, construction is tedious and fast, and is conducive to the maintenance of the environment.
The polyurethane foam insulation pipe is tightly adhered to the outer skin of the steel pipe because of the rigid polyurethane foam insulation layer, which can isolate the infiltration of air and water, and can play a good anti-corrosive effect. At the same time, its foaming holes are closed, water absorption is very small, high polyethylene shell, FRP shell has good anti-corrosion, insulation and mechanical properties. According to foreign materials, the service life of prefabricated polyurethane direct-buried insulation pipe can reach more than 50 years, which is 3-4 times longer than that of traditional trench laying and overhead laying.
This article is supported by Jinan thermal insulation pipe. For more details, please click on our official website https://www.sdhpgy.com. We will provide you with satisfactory service wholeheartedly.
