Removing and installing manway access doors on hemi-head style Feedwater Heaters can be very challenging/difficult with significant safety concerns handling components that weigh as much as 500lbs on large HP Supercritical Units. Original heater manufacturer supplied handling rigs typically require manual hands-on “grunt” methods to manipulate the rigs with the heavy doors hanging on the devices. American Electric Power (AEP) and Industrial Contractors Skanska (ICS) collaborated to design and construct a portable, hydraulically operated manway handling hoist that makes removal and installation safe and easier for plant personnel to use. The hoist has successfully been used to remove and re-install manway doors on HP Heaters on AEP 1300MW Supercritical Plants. Details of the OEM furnished rig and the AEP/ICS developed manway handling hoist will be discussed in the paper.
- Nuclear Engineering Division
- Power Division
High Pressure Feedwater Heater Hemi Head Manway Hoist
Michell, FL, Adkins, D, Selby, T, & Winiger, C. "High Pressure Feedwater Heater Hemi Head Manway Hoist." Proceedings of the 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. Volume 2: Plant Systems, Structures, and Components; Safety and Security; Next Generation Systems; Heat Exchangers and Cooling Systems. Anaheim, California, USA. July 30–August 3, 2012. pp. 797-804. ASME. https://doi.org/10.1115/ICONE20-POWER2012-55113
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