Conditioning assembly for continuous stack monitoring
US4161883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1978 |
| Grant date | Jul 24, 1979 |
| Priority date | — |
| Expiry date | May 23, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A probe for obtaining particulate-free samples of gas from a smoke stack for a power plant or other industrial installation. The probe comprises a coarse filter, with means for periodic cleaning by blowback, protecting the inlet to an inertial filter. A high velocity flow of coarsely filtered stack gas is established through the inertial filter. Sample gas is withdrawn from the inertial filter at a low rate in a direction orthogonal to the gas stream through the inertial filter so as not to disturb particles in the inertial filter stream. The invention eliminates the necessity for frequent maintenance of stack mounted filters or other stack mounted components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.