Insulation layer design
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Could those who are familiar with design please explain the design principles for insulation layers? At what working temperature is insulation necessary to maintain heat or cold? Are there any considerations regarding thickness that need to be calculated? Do the insulation conditions on the tube side and shell side of the heat exchanger need to be the same?
We all act according to the user’s requirements; they decide whether coverage is needed, what materials to use, and what thickness to employ. Generally, they handle these matters on their own. But now there are devices that need to be used for insulation in our unit; I’m waiting to see them.
On our end, we also act according to the user’s requirements; they decide whether insulation is needed, what materials to use, and what thickness to use – we don’t get involved in the insulation aspect.
Insulation is generally determined by its purpose, and can be roughly divided into three types: heat protection, heat retention, and cold retention. If the goal is merely to prevent burns, the thickness required is relatively thin; whereas when heat retention or cold retention is needed, heat calculations must be carried out, with the thickness usually being determined by the engineering team.
Insulation layers are generally required when the operating temperature is above 60 degrees; secondly, insulation layers are necessary for equipment that has strict temperature requirements. The thickness of the insulation layer depends on the temperature, and more details can be found in relevant books.
60 degrees is the standard; generally, any temperature of 60 degrees or higher requires the installation of an insulation layer
I think the 5th floor is reasonable, as the design temperature for liquefied storage tanks specified in the regulations is 50 degrees, which indicates that the energy supplied from the outside environment under natural conditions can only maintain the tank at a temperature of 50 degrees. At 60 degrees, insulation is needed to maintain it.
In a certain design institute, the insulation design involves the piping department calculating the heat loss uniformly and then providing a table of recommended thicknesses, which is used by the equipment department to select the appropriate thicknesses.
The insulation material and thickness are basically specified by the user. As for whether it’s necessary or not, it depends on the actual situation; it’s similar to what was said on the 4th floor. For example, some salt solutions tend to precipitate at low temperatures; insulation can be used to reduce the impact of the surrounding environment on them.