Automatic gas blending system

Details Automatic gas blending system Automatic gas blending system

1994-03-10

1995-12-19

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

13710121, G05D 1113

Patent

active

054761158

ABSTRACT:
A tracer gas and a carrier gas, such as helium and nitrogen, are blended using flow restrictive orifices in the flow lines for each gas. A process controller is used for automatic adjustment of a control valve in the tracer gas flow line in response to variations in pressure, temperature and flow in the flow lines.

REFERENCES:
patent: 4277254 (1981-07-01), Hanson
patent: 4345612 (1982-08-01), Koni et al.
patent: 4681530 (1987-07-01), Huber

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