For the cold storage,in order to reduce the cold loss and prevent frosting on the surface of the pipeline, some low temperature equipments and pipes need to be kept warm.So what kind of equipments and pipes should be covered with insulation?
Equipment and piping that need to be insulated are: 1.Medium and low pressure gas pipes and liquid pipes. 2.Equipments working under the pressure of evaporation. 3.High pressure and supercooling liquid pipes and bleeder tubes. 4.Hot ammonia pipes. 5.Water pipes though the low temperature room. 6.Supplying pipes and returning pipes through the cold room
Common insulation materials are: cork, polystyrene foam, polyurethane foam, glass wool, PU panel, PIR panel, Aluminium sheet panel, Stainless steel PU panel and so on. The standard thickness of the insulation layer needs to guarantee does not dew on the outer surface. That is to say the thickness of the insulation layer can insure the temperature of the outer surface of the insulation layer is not lower than the dew point of the local air.
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