Boiler ventilation system
US6877670B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2003 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | May 2, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2221/22
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of ventilating a boiler system (10) during boiler system outages includes shifting (64) to the ventilation system (11) by stopping (70) the boiler system induced draft fan (32), closing (71) an internal isolation damper (19) in the boiler system ductwork (14), opening (72) a ventilation isolation damper (18), and starting (73) a ventilation fan (12). At the completion of the outage, before resuming operation of the boiler, the ventilation system (11) is secured (64) by stopping (80) the ventilation fan (12), closing (81) the ventilation isolation damper (18), opening (82) the internal isolation damper (19), and starting (83) the induced draft fan (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.