Boiler system leak detection
US5320967A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Apr 20, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Leakage of water from a boiler water system wherein steam is generated in a boiler from feedwater fed to the boiler, and the concentration of impurities in the boiler water within the boiler is reduced by withdrawing fractions thereof as blowdown while admitting additional feedwater as boiler-water makeup, is determined. The boiler has a concentration cycle value, the concentration cycle value being the average value of the concentration of an inert component in the blowdown at steady state (C.sub.F) divided by the concentration of the inert component in the feedwater (C.sub.I). The concentration of the inert component in the boiler at steady state varies from a high concentration C.sub.H, having a value that is higher than C.sub.F, to a low concentration C.sub.L, having a value between the (C.sub.I) and the (C.sub.F), within a time period. The method comprises: PA1 employing as the inert component an inert tracer; PA1 sensing a characteristic of the inert tracer in the boiler at steady state equivalent to its concentration in the boiler water; PA1 converting the sensed characteristic to a value equivalent to the concentration of the inert tracer in the boiler water; and PA1 activa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.