Trading and engineering company focusing on process pumps
In 2011, Copenhagen Pump was contacted by Naval Arcitects and asked to design an Anti Heeling project on the Hundested-Rørvig ferry.
Due to the ferry's dimensions, unintentional heeling occurred when loading vehicles. Relatively small stabilization tanks in the sides of the ferry, along with a pump system that could be operated from both the engine room and the bridge, had to solve the problem.
It's basically the same antifreeze that is moved between the two tanks on starboard and port respectively.
Normally, high-capacity propeller pumps are used for this type of task. But due to the capacity of the ballast tanks and for control reasons, an Allweiler progressive cavity pump was used in a slightly unconventional way.
The Allweiler Eccentric Screw Pump has the advantage of being fully reversible while also acting as a shut-off valve. The bridge and machine control are equipped with level indicators so you can follow the flow of the liquid between the containers.
The project
Control: whiteboard project with remote whiteboard on the bridge
Pump: Allweiler AEB 1 1450 can deliver up to 1.5 m3/min at 400 rpm
Instrumentation: Pressure transmitter
Motor valves: 2 pcs
Service: The system has worked for 2011-2021 years without consumption of spare parts. The system is used daily and works very satisfactorily according to the ship owner.
