Rolls-Royce has more than 25 years experience in anti-heeling
systems. The operational principle of the anti-heeling
system is different from conventional pump-activated
systems. Rotary piston blower(s) and air vales are connected
to side tanks by air pipes.
Water moved by blower air to immediately compensate
ship’s heel
As soon as the ship heels due to an asymmetric load,
the blower air is led into the corresponding side tanks
thereby shifting the tank water athwartships to immediately
upright the vessel. No time delay between the shifting
phases because the lower is constantly running and the
direction of air flow is controlled by rapidly acting
air valves.
Features and benefits
- Immediate reaction
- Unlimited start/stop frequency
- High transfer rates
- No current peaks for motor starts during operation
- No moving parts in contact with water
- System’s reliability is proven
The system has no working parts in contact with water,
so corrosion will not affect operation or lifetime of
the system. The air cushion in the side tanks and pipes
enables quick starting and stopping of shifting operations
without risk of dynamic shocks which may occur in pump
activated systems.
The anti-heeling system is equipped with a fully automatic
control including additional remote control station(s).
Installation of main components is independent of the
location of tanks in the vessel. Several tanks can be
connected to one lower/valve system in order to increase
the total heeling moment.
This system is available as stand-alone or combined
with the functionality of continuous cyclical heeling
in level ice (ice-heeling system).
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