This duct balloon was used during maintenance of the duct breeching and involved applying an epoxy coating on the interior walls of the duct work. Note that respirators are required to perform this work.
It is a one piece design that measure measured 26’6” high x 24’0” wide x 3’0” thick and weighs about 150 lbs. It was installed inside the FGD system duct work between the absorber and the stack.
It provided a tight enough seal that allowed workers to be on the opposite side of it without the need for respirators
Controlling noxious fumes as well as sources of ignition during the application of epoxy compounds in absorber outlet ducts to deter corrosion is an going challenge for plants that operate wet FGD systems.
Copyright 2010 by G.R. Werth & Associates, Inc. - All rights reserved
Duct Balloon
Inflatable Isolation Barriers
