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A constant flow rate input fluid of mixed gas, oil, water and suspended solids separates into its phases by centrifuging in a chamber of a multiple phase separator. Clean oil draws off through a mouth of a pitot tube tap which extends into the chamber. Solids leave the chamber through radially perim

A constant flow rate input fluid of mixed gas, oil, water and suspended solids separates into its phases by centrifuging in a chamber of a multiple phase separator. Clean oil draws off through a mouth of a pitot tube tap which extends into the chamber. Solids leave the chamber through radially perimetric orifices. Water leaves the chamber through a radial passage opening into the chamber radially inward of the orifices and outward of the mouth of the pitot tube. Gas leaves the chamber through an annular tap radially inside the mouth of the pitot tube. An overflow oil stream leaves through this annulus and keeps separate from the gas by gravity. The quantity of water in the chamber determines the radial positions of the lighter constituents of oil and gas so that each tap for these phases draws only the proper phase. Insufficient water in the chamber reduces the water flow rate from the separator, which generates a signal that recirculates water from a reservoir into the separator to increase the quantity of water there. Too much water increases the water flow rate from the separator. Too little oil results in stoppage of the overflow oil stream. When the latter flow stops, oil flow from the pitot tube stops to allow the input fluid to increase the percentage of oil in the chamber. The overflow annulus is sufficiently capacious to drain excess oil without further phase adjustment.

대표청구항 ▼

In a centrifugal separator for separating the phase constituents of a multiconstituent feed of solid, liquid and gaseous phases, an improvement which comprises: a. a housing; b. a rotor rotatable in the housing and having a rotor chamber; c. passage means for delivering the multiconstituent feed to

In a centrifugal separator for separating the phase constituents of a multiconstituent feed of solid, liquid and gaseous phases, an improvement which comprises: a. a housing; b. a rotor rotatable in the housing and having a rotor chamber; c. passage means for delivering the multiconstituent feed to the rotor chamber; d. means to define radial zones of mixture phase constituents stratified in accordance with their density and in response to centrifugal force applied through the rotor, such means including exit passages from the rotor chamber for the individual phase constituents of the feed, the exit passages including a pitot tube having a mouth in the chamber at a selected radial zone therein for a select one of the phases, a plurality of constructed passages opening at the radial perimeter of the chamber for the solid phase, and a control fluid passage opening into the chamber between the constricted passages and the pitot tube for a control phase liquid of the phases, whereby the quantity of control phase liquid in the chamber determines the radial position of the other non-solid phases in the rotor chamber.