Chemical cleaning of a steam generator during mode 5 generator shut down
US7302917B2 · kind B2 · utility
2Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2005 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Feb 28, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B37/483
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A Nuclear Steam Supply Stem (NSSS) Mode 5 Steam Generator Chemical Cleaning system is disclosed which applies chemical cleaning solvent (formulated to remove SG deposits) to the secondary side of the SG using primary side supplied heat during NSS Mode 5 shutdown to maintain the desired application temperature. Mixing is achieved via nitrogen sparging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.