What are the advantages of polyurethane foam insulation pipeline?

What is polyurethane foam insulation pipe? This is a kind of pipe for heat insulation, which is made of foam material. What are the advantages of polyurethane foam insulation pipe? Polyurethane foam insulation pipe can reduce the project cost, because it can provide heat, so it can reduce the project cost. Most polyurethane foam insulation pipes use glass fiber reinforced plastic as protective layer, which can effectively insulate heat and reduce manufacturing cost. The following small series will introduce the advantages of polyurethane foam insulation pipe in detail for everyone.

1, reducing the project cost.

According to the calculation of relevant departments, the double-pipe heating pipeline can generally reduce the project cost by about 25% (using FRP as protective layer), 10% (using high-density polyethylene as protective layer).

2. Low heat loss and energy saving.

Its thermal conductivity λ = 0.01.03-0.03kcal/m h oc, which is much lower than other commonly used pipeline thermal insulation materials in the past, and the thermal insulation effect is improved by 4-9 times. Moreover, its water absorption is very low, about 0.2kg/m2. The reason of low water absorption is that the closed cell rate of polyurethane foam is as high as 92%. The low thermal conductivity and water absorption, coupled with the insulation layer and the high-density polyethylene or glass fiber reinforced plastic protective shell with good waterproof performance outside, have changed the situation of "wearing wet cotton-padded jacket" in the traditional trench laying of heating pipelines, greatly reduced the overall heat loss of heating pipelines, and the heat loss of heating pipelines is 2%, which is less than 10% required by international standards.

3, corrosion resistance, good insulation performance and long service life.

Because the polyurethane rigid foam insulation layer is closely combined with the steel pipe skin, it can isolate the penetration of air and water and play a good anti-corrosion role. At the same time, its foaming holes are closed and its water absorption is very small. High-density polyethylene shell and glass fiber reinforced plastic shell have good corrosion resistance, insulation and mechanical properties. Therefore, the outer skin of the working steel pipe is not easy to be eroded by external air and water. As long as the water quality in the pipe is well treated, the service life can reach more than 50 years, which is 3~4 times longer than that of traditional trench burial and overhead laying.

4. Pipe insulation. Less land occupation, fast construction, which is beneficial to environmental protection.

Directly buried heating pipeline does not need to build a huge trench, but only needs to bury the insulation pipe underground, thus greatly reducing the engineering area, reducing the amount of earthwork excavation by more than 50% and the amount of civil masonry and concrete by 90%. At the same time, the processing of insulation pipe is carried out in parallel with on-site slotting, and the construction period can be shortened by more than 50% only by on-site docking.

These are the advantages of polyurethane foam thermal insulation pipeline. Introduction, do you know what are the better advantages of polyurethane foam insulation pipeline now? This kind of thermal insulation pipeline has low consumption, can effectively save energy and is a pipeline with low thermal conductivity. This kind of pipeline has excellent waterproof performance, high density, effective heat preservation and prolonged service life. Polyurethane foam thermal insulation pipeline occupies less land, and the construction is faster and more environmentally friendly.

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