Primary Inventor: Krishna P. Singh
Date: Mar. 14, 2023
Status: Granted
Jurisdiction: US
Assignee: Holtec International
Equipment Type: Air Cooled Condenser
Docket Number: HOL-118
Application Number: 16/906,382
Patent Number: US 11,604,030 B2

Prior Publication Data: US 2019/0093953 A1, Mar. 28, 2019

Related U.S. Application Data:

  • Continuation-in-part of application No. 16/142,246, filed on Sep. 26, 2018, now Pat. No. US 11,204,201 B2
  • Provisional application No. 62/863,360, filed on Jun. 19, 2019.
  • Provisional application No. 62/564,000, filed on Sep. 27, 2017

Abstract: An air-cooled condenser system for steam condensing applications in a power plant Rankine cycle includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a frame-supported fan, inlet steam header, outlet condensate headers, and tube bundle assemblies having optionally finned tubes extending between the headers. The tube bundle assemblies may fabricated into an A-shaped tube structure. The tube bundles are self-supporting without support from any part of the frame between top and bottom tubesheets of each bundle. The condensate headers may be slideably mounted to the frame for thermal expansion/contraction. Steam circulating in a closed flow loop on the tube side from a steam turbine is cooled in each cell by ambient air blown through the tube bundles, thereby forming liquid condensate returned to the Rankine cycle. The present design further provides a longitudinal and vertical thermal expansion restraint system.