Fifteenth Annual Vail Operator Training Seminar Understanding Understanding Centrifugal Blower Centrifugal Blower Operation in Operation in Wastewater Wastewater Aeration and Aeration and Dissolved Oxygen Dissolved Oxygen Control Control Presented by: Nicholas Radley Project Engineer N.E. Controls, LLC
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Fifteenth Annual Vail Operator Training Seminar Understanding Centrifugal Blower Operation in Wastewater Aeration and Dissolved Oxygen Control Presented.
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Operation in Operation in Wastewater Aeration Wastewater Aeration
and Dissolved and Dissolved Oxygen ControlOxygen Control
Presented by:
Nicholas Radley
Project Engineer
N.E. Controls, LLC
Aeration Control Overview
N.E. Controls History
Blower Basics
Aeration Control Systems
Aeration Control Equipment
N.E. Controls, LLC
Lamson / Hoffman Empire in Syracuse, NY Gardner-Denver buyout Peachtree City, Georgia or bust Three partners formed N.E. Controls in 1997 Almost 60 combined years of experience in
the blower business. Now our business of 10 employees build
various controls for use in Water / Wastewater treatment and other industries.
Centrifugal Blower Basics Flow based machine
not pressure based More similar to a fan
than a compressor Excels at moving
large volumes or air but not overcoming large pressure gradients
How a Blower Works First-stage impeller
draws air through inlet First-stage air is forced
outward, away from shaft and casting design directs air into second-stage impeller
Flow pattern continues through machine until air is exhausted though outlet.
Blower Customization
Output pressure increases as more stages are added
Blower pressure and flow characteristics can be tuned with different combinations of stages, impeller profiles and power ratings