Sample retrieval system
US6029506A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Nov 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for collecting fugitive emissions from valves and other emissions sources is disclosed. The apparatus comprises a capsule enclosing at least a portion of the equipment and an ejector in fluid flow communication with the capsule. The ejector is connected to a compressed air source, which creates a pressure drop in the ejector which draws emissions from the capsule into the ejector. The apparatus may include a sensor chamber housing gas sensors to detect the presence and concentration of any emissions from the equipment being monitored, and may store emissions data, communicate the data to a plant process control system, and use the data to control plant conditions to reduce or eliminate the emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.