Through Wall Leaks
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Through Wall Leaks
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Market
Power
Challenge
The challenge was to eliminate air leaks through the wall.
Engineered Solution
The solution proposed utilized the HydraTite® seal with six three-piece 316 stainless steel bands, a double-wide HydraTite® seal, and a 16-gauge stainless steel backing plate.
Scope
The circulating water box system required a vacuum on the system to allow proper water circulation in the water box and provide cooling through all tubes. This operating performance was degraded due to wall leaks in the discharge piping that allowed atmospheric pressure to reduce vacuum levels and thus reduce the cooling capacity of the condenser and overall electrical generation.
The crew and all materials entered through an existing manhole and were able to complete the system installation within the work window provided by the station.
Solution
After the project, the system performance was brought back to as-built specifications, with the nuclear plant operating at better efficiency and thus increasing electrical generation output.
