A case study to effect of ambient temperature changes on UHMWPE mining tailings pipeline
2024-02-18 11:57
A case study to effect of ambient temperature changes on UHMWPE mining tailings pipeline
Thermal behavior of Dragon UHMWPE pipe is a factor that need to be taken into consideration during pipeline applications.
According to ISO 11359-2:2021 Thermomechanical analysis (TMA) Part 2: Determination of coefficient of linear thermal expansion and glass transition temperature, linear expansion coefficient is an important factor to real applications. Research data is based on a micro level, with factor data for us to calculate how much elongation or contract of uhmwpe pipes after temperature changes. Here is an overview pipeline picture one year after installation and operation:
This is an application case of Dragon UHMWPE pipe in China inner Mongolia area, for a Molybdenum mining tailings transport. The lowest ambient temperature in winter is -35℃, the highest ambient temperature in Summer is +30℃. Temperature difference among the whole year is 65℃. Some pipeline section is buried under ground, some sections are laying on ground. This picture was taken at Sep. with ambient temperature at 10~20℃, the on-ground sections are showing irregular bending due to effect of ambient temperature changes.
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