Concentration cycles, percent life holding time and continuous treatment concentration monitoring in boiler systems by inert tracers
US5041386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1988 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/13
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Concentration cycles, percent life holding time for a component in the boiler and continuous treatment concentrations are monitored or determined in a boiler system by adding to the feedwater an inert tracer in a predetermined concentration C.sub.I, which reaches a final concentration C.sub.F at steady state in the boiler and which exhibits a blowdown concentration C.sub.t at different points in time. The component is an inert tracer having no significant carryover in the steam, nor significant degradation during boiler cycles. The tracer is monitored by continuously converting a characteristic of its concentration to an analog which may be recorded as a function of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.