Constant flow and constant pressure fluid regulator

Details Constant flow and constant pressure fluid regulator Constant flow and constant pressure fluid regulator

1988-05-20

1990-02-20

Fox, John

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137 8, 137885, F16K 1110

Patent

active

049017594

ABSTRACT:
The present invention provides constant fluid flow and constant pressure to chemical analysis monitors 24-26 for reliably monitoring the quality of fluid in a plant such as a power generating plant. A high pressure fluid source 28 provides fluid to a forward pressure regulating valve 30. The valve 30 supplies a metering valve 36 which regulates flow. The pressure on the output side of the metering valve 36 is maintained constant by a back-pressure regulating valve 40. The constant pressure and flow fluid is supplied from between valves 36 and 40. Excess fluid bled off by valve 40 can be returned to the source 28. A second stage of pressure regulation which improves pressure constancy can be provided by valves 45 and 46 at the first stage pressure or at a different pressure.

REFERENCES:
patent: 3083721 (1903-04-01), Matthews et al.
patent: 3543784 (1970-12-01), Smith
patent: 3633416 (1972-01-01), Dyke et al.
patent: 3853144 (1974-12-01), Whelan
patent: 4402910 (1983-04-01), Smith et al.
patent: 4472354 (1984-09-01), Passell et al.
patent: 4799511 (1989-01-01), Azimov

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