Roxul Industrial Insulation Process - Manual (Page 50)

Insulation of v
es
sels
1. System solutions
1.3 Insulation of vessels
Vessels are a major component in installations for
various procedures in almost all fields of industry.
Many production processes require different
substances that are stored in vessels and used in
the individual processes later in the procedure.
The vessels primarily store liquid, solid or
gaseous substances, which are added to the
process when required. Raw materials, fuels or
end products are usually stored in large storage
tanks.
It is often important to store the substances within
certain temperature limits. If the temperature is
too high or too low, the substance can spoil or set,
or lose its flowing properties and become
incapable of being pumped or discharged.
Insulation is therefore a major factor in the
functionality of procedural processes. It also has
the following purposes:
Reduces heat loss
Aids protection against contact by minimizing
the surface temperature
Reduces cooling of the stored substance, so it
remains fluid and does not set
Prevents the vessel from freezing (with
additional tracers)
Prevents heating of the stored substance (for
example, through solar radiation)
The vessels used in the different industrial
processes are so varied that the examples of use
cannot fully take into account the particular
circumstances of each case.
Determine whether the products and construction
described are suitable for the corresponding
application in each individual case. If in doubt,
consult the ROXUL
® Technical Services Team.
The applicable standards and regulations must
also be observed. A few examples follow:
ASTM C1696 "Standard Guide for Industrial
Insulation Systems"
NACE SP0198 (Control of corrosion under
thermal insulation and fireproofing materials -
a system approach)
ASME "Boiler and Pressure Vessel Code"
MICA "National Commercial & Industrial
Insulation Standards"
DIN 4140 (Insulation works on industrial plants
and building services installations)
AGI Q05 (Construction of industrial plants)
AGI Q101 (Insulation works on power plant
components)
CINI-Manual: “Insulation in industry”
BS 5970 (Code of practice for thermal insulation
of pipe work, equipment and other industrial
installations)
PIP (Process Industry Practices)
Note
Before starting the insulation works,
ensure that all preparatory work on the
object has been completed. Refer to Chapter
1.1 for details.
Insulation systems for vessels
An insulation system for a vessel generally
consists of the following components:
Insulation
Support construction and a spacer
Water vapor retarder with cold insulation
systems
Cladding
The actual operating temperature (above or below
ambient) is essential for the design of the
insulation work. The following chapters
concentrate on hot insulation.
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