Constant flow and constant pressure fluid regulator
AssigneeWestinghouse Electric Corp.
InventorJames C. Bellows
Life of this patent
Estimating the term…
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.
Claims9
A flow and pressure regulator, comprising:
- fluid supply means for supplying a fluid;
- regulation means for transferring the fluid at a constant outlet pressure and constant inlet flow from said fluid supply means without exposure of the fluid to atmosphere;
- and
- a drain coupled to said regulation means and receiving a variable amount of the fluid as both the constant outlet pressure and constant inlet flow are maintained.
A flow and pressure regulator for regulating fluid from a fluid source, said regulator comprising:
- constant pressure means for maintaining a constant output pressure of the fluid without exposure of the fluid to atmosphere;
- constant flow means for maintaining a constant input flow of the fluid from the source;
- and
- a drain coupled to said constant pressure means and receiving a variable amount of the fluid as both the constant output pressure and constant input flow are maintained.
Dependencies are inferred from the claim text.