Primary Inventor: Krishna P. Singh
Contributing Inventor(s): Vytas Maciunas, Akhilesh Bapat, Raghavendra Palle
Date: Aug. 27, 2024
Status: Granted
Jurisdiction: US
Assignee: Holtec International
Equipment Type: Air Cooled Condenser
Docket Number: HOL-136
Application Number: 17/193,536
Patent Number: US 12,072,151 B2
Prior Publication Data:
US 2021/0278134 A1 Sep. 9, 2021
Related U.S. Application Data: Provisional application No. 62/986,401, filed on Mar. 6, 2020.
Abstract: An induced draft air-cooled condenser for steam condensing applications includes a pair of inclined tube bundles defining a interior space there between in fluid communication with ambient air heated as it flows through the tube bundles. A fan supported above the interior space comprises rotatable fan blades disposed inside a cylindrical annular fan shroud. A drive mechanism operable to rotate the fan blades includes a motor operably coupled to the fan blades. The motor is supported inside the fan shroud and may be housed in a protective enclosure which may be insulated. A motor cooling system includes an air inlet duct fluidly coupled to ambient air outside the shroud and the enclosure. When the fan operates, cool ambient air is drawn via a vacuum formed by the fan through the duct to cool the motor. The air thus bypasses and is not heated by the tube bundles.