Sealed observation element for sulfur recovery unit
US5821428A · kind A · utility
3Cited by
12References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1995 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sealed observation element for viewing the flow of molten liquid during the operation of a sulfur recovery unit comprises at least one sight glass that is heated and which may be swept with a purge gas supplied through one or more bleed rings to prevent condensation or deposition of materials on the side of the sight glass exposed to the process stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.