.

.

The InvisiHeadpatented, the Pipeline whether its steel, steel lined with polyethylene, Concrete, or high density polyethylene (HDPE) pipe, and the NatSeppatented all form the complete Elmosa offshore seawater intake system. The omni directional InvisiHead intake head system adds to the performance of the offshore system. It is fitted to the upstream end of the intake system pipeline located some distance into the sea from the shoreline. Entrance velocity is lower than  0.091 m/s (0.3 fps).  The approach velocity is extremely slow-0.0027 m/s (0.009fps)-the InvisiHead intake head becomes hydraulically invisible to suspended matter. In other words, the Intake head does not act as a sink point and therefore does not suck in debris. 

Super slow entrance velocities also lead to lower head losses and lower level draw down at the pump intake basin. The InvisiHead entrance section is hydraulically fine tuned in lab tests. The entrance dimensions are not arbitrarily selected but hydraulically calculated in multi dimensional approach. Each dimension is a function of the steady flow velocity. Eddies through this approach are totally eliminated thus head loss at the InvisiHead is reduced to a few millimeters.

More details

Copyright © 1998, 1999, 2000, 2001, 2002 ELMOSA. All rights reserved