deep-water lobe pump / resistance solids / reversibility / seawater
/ vacuum
In order to fix working platforms or wind turbines on the high
seas, suction piles are frequently used which can also serve as a
foundation.
The suction piles mostly made of steel have a cylindrical shape and
are open on one side. With the open side pointing downwards, the
suction piles are sucked into the seabed due to the creation of a
vacuum and then hermetically sealed. In order to create this
vacuum, the seawater situated in the cylinder is pumped from the
suction pile. Accuvon rotary lobe pumps are used for this purpose.
Due to their compactness, resistance to solids and reversibility,
Accuvon rotary lobe pumps are perfect for this application. Two
Accuvon pumps are installed on a submersible module and driven by a
hydraulic motor. In order to achieve a high flow rate, the two
pumps can be operated simultaneously. With high pump pressures, the
pumps are switched in series.
Accuvon pumps are used when fixing suction piles at water depths of
up to 3,000 m. In order to increase the resistance of the pump
casing to the aggressive seawater, Accuvon has developed the Black
Protection surface treatment. Thus, the service life of the
deep-water pump can be further increased.
Application data:
| Medium | seawater |
| Flow Rate | 40 m³/h |
| Viscosity | viscous |
| Pump Speed | 450 rpm |
| Temperature | 1 - 23°C |
| Pressure | 5 bar |
| pH value | neutral |
Technical data:
| Casing | grey cast iron,treated with Black Protection |
| Casing protection plate | hard metal treated with QPV |
| Static O-rings | NBR |
| Shaft seal | single-acting mechanical seal SISIC/SISIC-NBR |
| Rotors | tri-lobe screw profile, NBR Rubber |
| Drive connection | hydraulic motor 9.6 kW |
Advantages of this Accuvon AP 100
- Increased service life due to Black Protection treatment of the
pump casing
- Short-term dry-run capability
- Pressure-resistant
- Reversible
- Resistant to solids
- Compact design
- Ease of maintenance
Similar application of chemical:
Accuvon provides many applications on-board ships and in other
areas of the marine industries - from handling of both fresh and
seawaters to fuels of all kinds, oil or oil sludge, bilge or other
water-oil mixtures, fish or fish waste, sewage or other fluids with
or without solids, of low or high viscosities.
Sewage | Ballast Water | Bilge / Loading | Oil Sludge | Fuel /
Crude Oil | Oil-Water Separation | Fish / Kitchen Waste | Mud |
Emulsions | Oilfield Chemicals | Marine Diesel Oil | as Skimmer
Pump
Features of Accuvon Rotary Lobe Pumps:
1.Self-priming, Valve-less, Positive Displacement Pump
2. Easy Maintenance through Front Cover
3. Controllable Flow, Ratio up to 1 : 5
4. Capacity of up to 3200 m³/h
5.Pressures of up to 25 bar
6. Dry-running Capability
7.Reversibility, same pump output for both directions
8. Gentle, Low-Pulsation Pumping
9.For Viscous, Solid, Abrasive or Shea-sensitive Mediums
10. Low Parts Replacement Costs
Components of a Accuvon Rotary Lobe Pump
1 Timing gear
2 Quench and control chamber
3 Casing in block design
4 Unwetted shaft
5 Axial and radial casing protection
6 Shaft seal
7 Rotors
8 Quick-release cover
