John R. Kelly Generation Station, Spring 2025 Outage, Cooling Tower Water Flow Distribution Restoration

Description

The Plant outage is currently scheduled for 02/25/2025 through 03/23/2025. As is standard with outage procedures, the Contractor should plan for approximately four (4) days on both the front end and back end of the outage period for shut down and start up activities. Therefore, the Contractor shall assume they will have nineteen (19) working days with the cooling tower isolated and the cold water basin drained. The Contractor should understand that these dates are subject to change, but the number of working days with the cooling tower offline should remain largely unchanged.The Contractor shall perform the following repairs in all eight (8) half-cells of the cooling tower.3.2.1.1 Replace Distribution BoxesRemove and replace the existing 4’0” x 8’0” pre-molded distribution boxes with a new FRP distribution box of the same size. There is one (1) distribution box per half-cell. The Contractor shall salvage and reinstall any grating affixed to the existing distribution box that is present for personnel access. This shall include all new 316 stainless steel hardware. The design of the distribution box shall comply with the following specifications:A) The distribution box cover shall sit on a frame or tray.B) The tray shall have “feet” that hold the frame approximately 3” off the hot water basin panels.C) Inside the frame are to be baffles spaced approximately 3” apart.D) The distribution box cover, which shall be slightly larger than the support frame, will sit over the tray and have framing to hold the cover off of the frame.E) The tray should be secured into the primary cooling tower structure and not just the hot water basin panels alone.F) The cover should then be secured into the tray.3.2.1.2 Reseal Distribution ValvesReseal the existing 16” distribution valves between their discharge and the attachment point to the new distribution boxes. There is one (1)