High flow rate sampler for measuring emissions at process components
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United States of America Patent
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-
Oct 9, 2001
Grant Date -
N/A
app pub date -
Oct 8, 1998
filing date -
Feb 28, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A new high flow rate sampling device and methods for measuring fugitive gas emissions are provided. The high flow rate sampler comprises an air mover connected to a flexible hose for drawing in air near a process component, such as a pump, compressor seal, flange, or pipe thread connection. A second sample hose draws air from the opposing side of the process component at a flow rate low enough not to affect capture of the leak by the first sample hose. Air measured from the first sample hose will contain fugitive emissions from the process component being measured, as well as from other process components. Air measured from the second sample hose will contain only fugitive emissions from surrounding process components and can then be subtracted from the measurement from the first sample hose to obtain the leak rate from the process component in question.
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