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US 11,852,569 B2Granted
System and method for low pressure low flow dilution extraction gas sampling
AssigneeCEMTEK Systems Inc
InventorSean D. Mitchell
Life of this patent
Estimating the term…
Abstract
Disclosed is a system and method for low-pressure, low-flow dilution extraction. The system includes an outer housing, an inner housing partially within a heating element, and a manifold connected to the inner housing, having taps for a sample nozzle and dilution nozzle, and a through hole connecting the sample and dilution nozzle taps to allow a sample gas from, e.g., a stack to mix with a dilution gas before being drawn at a low pressure towards a gas analyzer.
Claims15
A method for low-pressure, low-flow dilution extraction gas sampling, comprising:
- passing a sample gas from a duct operably connected to a sample nozzle tap of a manifold that is positioned within the duct;
- forming a dilute mixture by passing a dilution gas through a dilution nozzle operably connected to a dilution nozzle tap on the manifold and through a through hole connecting the dilution nozzle tap with the sample tap, the through hole having an inner diameter of less than 0.1 inches so as to mix the dilution gas with the sample gas within the manifold;
- transporting the mixture to at least one analyzer and maintaining vacuum on the mixture sufficient to maintain a dew point of the mixture below a predetermined threshold.
Dependencies are inferred from the claim text.