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Marine Growth Prevention &
Anti-Fouling Systems
Cathelco
Ltd.
Marine Marine Pipework Anti-fouling
Systems for FPSOs
| Marine
organisms can breed prolifically in the numerous
seawater intakes serving engine cooling, product
processing, fire fighting and potable water supply
services of a
Floating Production, Storage and Offloading (FPSO)
vessel. It is essential
that all of these functions be protected by an effective
and reliable seawater Cathelco Ltd. pipework impressed
current antifouling system. |
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Biofouled
water pipe |
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Seachest
Mounted Anodes
Copper and
aluminium anodes can be mounted in seachests if the
scheduled drydocking period for the FPSO is less than 5
years, assuming there is sufficient space availability. |
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Strainer
Mounted Anodes
The
advantage of strainer mounted systems is that the anodes
can be changed at any time without the need for
drydocking. In these circumstances, Cathelco Ltd. recommend
that some of the treated water is fed back to the
seachests to ensure thatthey are kept free from fouling. |
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Electrolysis
Tank Systems
If the
drydocking interval is greater than 5 years, an
electrolysis tank system may be the most practical
option. In this case, a feed is taken from one of
the seachests and pumped to the electrolysis tank
housing the copper and aluminum anodes. The seawater
is treated at a high dosage rate and then
distributed via pipework to multiple seachests where
it is diluted by the incoming flow and achieves a
normal dosage rate to protect against bio-fouling.
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Effective and reliable anti-fouling protection.
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Automatic – requires minimal attention.
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Does
not involve the use of chemicals.
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Environmentally friendly.
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