Opti-Wave drift eliminators have extruded PVC sine wave profiles 50 mm thick with reinforced upper and lower edges. This provides extra stiffness for long spans with minimum deflection. Spacers secure wave sections uniformly at 2-inch increments for increased stability and modules join together with an integral locking feature that holds the assembled module grid securely. This provides for fast and efficient assembly. Modules can be cleaned if they become fouled.
In every cooling tower there is a loss of water to the environment due to the evaporative cooling process. This evaporation is usually in the form of pure water vapor and presents no harm to the environment.
Drift, however, is the undesirable loss of liquid water to the environment via small droplets that become entrained in the leaving air stream. There, water droplets carry with them chemicals and minerals, thus impacting the surrounding environment.
Drift eliminators are designed to capture large water droplets caught in the cooling tower air stream. The eliminators prevent the water droplets and mist from escaping the cooling tower. Eliminators do this by causing the droplets to change direction and lose velocity at impact on the blade walls and fall back into the tower. Efficient drift eliminators will keep drift losses to less than .001% of the re-circulating water flow rate.
Opti-Wave profiles come in any length and are manufactured of rigid PVC. Spacers are manufactured of polypropylene.
Designed primarily for counterflow towers with air velocities up to 600 fpm, the Opti-Wave Drift Eliminator's maximum drift rate is .02%.
When used in crossflow installations, the wave spacer is perforated to permit drainage of the accumulated drift back into the fill section. Maximum drift rate is .02% at 550 fpm.
