Sample retrieval system

Details Sample retrieval system Sample retrieval system

1997-11-12

2000-02-29

Raevis, Robert

Measuring and testing

With fluid pressure

Leakage

G01N 124

Patent

active

060295066

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.

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Journal of Applied Mechanics, "A Simple Air Ejector", J. H. Keenan, et al, pp. A-75-A81, Jun. 1942.

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