System for increasing efficiency of steam generator system having a regenerative air preheater
US6647929B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Mar 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S122/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for increasing the efficiency of a steam generator system including a boiler and a regenerative air preheater. The method including determining a reduced rate of acid accumulation in the preheater which may be achieved by injecting an SO3 neutralizing additive material into flue gas generated by the boiler. A new maximum allowable clean condition pressure drop is calculated based on the reduced rate of acid accumulation. Modified heat exchange element baskets are created having an increased heat transfer efficiency, compared to conventional heat exchange element basket assemblies, and a maximum allowable clean condition pressure drop substantially equal to the calculated new maximum allowable clean condition pressure drop. The conventional heat exchange element basket assemblies are replaced with modified heat exchange element basket assemblies. When the boiler is operating, the additive material is added to the flue gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.