WATER INTAKE PROTECTION (WIP) SCREENS
Water intake systems using traditional travelling band screens are often faced with the problem of debris carry-over and marine life mortality as a result of fish impingement and entrainment on the screen.
They are not well suited for water-life recovery and return and often these screens can be difficult to retrofit with fish-saving technologies.
The BEAUDREY WIP screen (Water Intake Protection) has been developed to overcome these problems and can be considered an alternative technology to traditional travelling band screens; it can be retrofitted into existing thru-flow screen pits. Its design is a combination of the time-tested “Scoop-a-fishTM” system and the revolutionary BEAUDREY Debris Filter resulting in a unique, reliable and high-performing screen.
The WIP’s design allows for simple installation into existing thru-flowing travelling band screens guides. After an existing thru-flow screen is dismantled and removed from the pit, the modular WIP can be slid into the pit within a day. No modification of the concrete structure is required.
As the water flows through the screening disk, marine species are arrested by the fish-friendly NOCLING™ panel. Fish are then kept in deep radial compartments located in front of the NOCLING™ panel. Within one minute, they are channeled by a fish-friendly pump into a returning flume. From here they are redirected by a pipeline around the water screen and into the outlet water. The fish are never exposed to the high or negative pressures and temperatures of the power plant, nor do they ever leave the water, so they are never exposed to air.
Fossil and nuclear power plants, chemical plants, desalination plants, manufacturing plants, refineries, irrigation.
Well suited for water life: a two-year, independent study confirmed that the WIP has no negative impact on marine life
Helps plants to achieve EPA 316(b) requirements
Proven lowest fish mortality rate of intake systems
No debris carry-over
Resistant to high H2O pressure differentials
Design to retrofit thru-flow travelling band screens as well as for new plants
Easy installation: no modification of concrete structures is required
Installed with NOCLING™ anti-fiber screening panels for water with high fibrous content (screening sieve available)
Easy to operate and maintain; all equipment can be lifted out of the water in three hours or less for inspection.
Fewer moving parts than a traditional travelling band screen allows for easier, less frequent and lower-cost maintenance
Based on the design principle of the BEAUDREY “W” filter, allowing for spare part interchangeability with the BEAUDREY Zero Ball Loss (ZBL™) condenser tube-cleaning system and the BEAUDREY debris filter
Slid into wall guides, it can easily be lifted out for maintenance without dewatering the pit.
AISI 304L, AISI 316L, duplex or super-duplex stainless steel.
Rotating wheel and screening disk
AISI 304L, AISI 316L stainless steel, duplex or super-duplex stainless steel
Nuts and bolts:
Duplex or super-duplex stainless steel
Other materials available upon request
The following table shows WIP SCREEN sizes for 1x1 mm to 2x2 mm mesh aperture, 0,15 m/s approach velocity.
(Note: WIP flow rate capacity corresponds to downstream canal flow rate)