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Inditherm
has developed an innovative solution to the problem of preventing fatty deposits
from forming on the inside of sewerage sludge transfer lines (STLs) in the water
utilities sector using its patented carbon-based conductive polymer Technology
(CPT).
The
Situation
Many
STLs suffer from the excessive build-up of fatty deposits on the inside walls of
the pipes and associated equipment. This necessitates shutting them down for
cleaning on a regular basis, sometimes as often as every 4 weeks.
There
is a significant amount of work involved in cleaning out STLs, which is
generally done by jetting out using hot water or steam.
This
work has a number of consequences:
- The
line has to be shut down for several days.
- Scaffolding
may be required for the jetting crew.
- Fitters
are required for line breakdown and refitting (approximately 1 day for a
typical STL).
- The
work area and the scaffolding must be cleaned up following the jetting
operation.
- In
the event that the sludge feeds a digester for a combined heat and power (CHP)
plant, the plant may need to be closed down, with the consequent increase in
costs and possible loss of revenue.
Build-up of fatty deposits in an unheated 200mm diameter
STL
The
Solution
The Inditherm heating system eliminates the build-up of fat
in STLs and the associated equipment, such as valves and pumps, eliminating the
need to close down and clean the lines, along with the cost and health &
safety implications.
Heating
with Inditherm completely eliminates any build-up, even on bends
Heating
System Features
The
Inditherm heaters are bespoke and can be fitted around any size of pipe or
associated equipment. Each system consists of the low voltage electrical supply
and the heating in either fixed or removable form:
- Heating
pads under fixed insulation and cladding.
The heating pads use Inditherm's CPT encased in a rugged envelope. This is
then strapped to the line before being covered by conventional insulation and
metal cladding, as shown below. This is ideal for standard pipe runs and is
suitable for STLs of any size or length.
- Heating under removable
jackets.
Removable jacket heaters are constructed using Inditherm's CPT mounted
on insulation and then encapsulated in flexible PVC jackets, fitted with
appropriate fasters. They are usually made to measure. Fitting removable
jackets around pipework and associated equipment is straight-forward and can
be completed quickly, minimising time on site.
To view our data sheet in PDF format click here
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