Pipeline insulation
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There is a lot of insulation on the pipelines in the refining plant, and some aspects of this insulation are not clear to me. For example, there is insulation on the pipelines before they enter the air coolers. Experts, please discuss the insulation used in this plant!
Thermal insulation is subject to design specifications. Determined based on temperature and material properties!
Insulation to prevent heat transfer in the pipeline before it enters the air cooler is sufficient.
“GB 4272-1992 General Rules for Insulation Techniques of Equipment and Pipelines” – please take a look at this first
Insulation before entering the air cooler is to prevent personnel from getting burned
Current GB/T 4272-2008 http://c.gb688.cn/bzgk/gb/showGb?type=online&hcno=8BED1D965532FFB30CA10A68951C0D58
It must be serving to prevent scalding, right?
Is the return line to the tower insulated?
Another reason for insulating the pipelines before they enter the air cooler is to prevent corrosion; especially in cases where expansion joints are present, insulation is essential.
Is the return line to the tower insulated? What is the reason?