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Inditherm recently completed the installation of heating and insulation for 3
large storage tanks in a leading detergent manufacturer's plant in the
Manchester area. The existing electric trace heating had failed, which meant
that the tanks' contents could not be maintained at the desired temperature
levels, leaving the possibility of the contents becoming too viscous to pump to
the process areas. One of the vessels was 60m³ tank located inside the plant.
Being old, it will require replacement soon, so the brief was to find a solution
which could easily be removed and fitted onto a new vessel in due course.
The solution involved providing 16 vertical removable jackets that were
suspended like curtains from rails around the top and centre of the tank. The
Inditherm heating pads were installed in two bands around the base of the tank.
The whole system was installed in under 2 days and offers easy removal for both
inspection and also installation onto a new vessel when the need arises. The
vessel contents are now maintained at 30-32ºC, with the ability to raise the
product temperature should the necessity ever arise. This "curtain" option is a
new innovation for Inditherm and was such a success, that it will become a new
standard for other indoor installations requiring removable jackets or jackets
and heating.
The other two 100m³ tanks were located outdoors and required heating to
maintain their contents (a mixture of acids and colourings) at 34ºC. In
addition, the heating system had to be capable of raising the product
temperature on demand. To replace the current system with trace heating would
have required an installation time of 2 weeks, meaning that the tanks would have
been inoperable for an unacceptable period of time.
The Inditherm low voltage heating system was chosen because the installation
time was only 2 days. The installation involved stripping the tanks of their
current cladding, insulation and trace heating and replacing them with two bands
of low voltage heating, with adjustable temperature control. Insulation and
profiled Aluzinc cladding were added to ensure adequate heat retention and tank
protection.
The customer is delighted with the installation and has asked Inditherm to
quote for additional tank heating work on the site.
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