Patent ID: 7503950

Claim:
An assembly for separating out liquid from a multiphase fluid flow, comprising: a main separation apparatus that comprises a main vessel, a fluid inlet, a vessel gas outlet, and a vessel liquid outlet; a deliquidizer that is connected as a preseparator to the fluid inlet, that has a substantially pipe-shaped inner casing, which forms part of an inlet arrangement of the fluid inlet, and an outer casing within which the inner casing extends and opens, and that operates on the principle of a cyclone; a spin element that is located at an upstream end of the inner casing of the deliquidizier for rotation of the fluid flow such that the fluid flow is separated in a central zone along a longitudinal axis such that liquid is forced outward relative to the gas as a result of the rotation, said spin element having a central void space, and being provided with at least one opening for outflow of separated gas from the void space, said opening forming a gas outlet from the central zone of the deliquidizer into the main vessel; an annular outer zone formed between the inner casing and the outer casing and forming a liquid outlet path from within the inner casing into the main vessel; a liquid barrier that is located at a downstream end of the outer casing to direct liquid into the annular outer zone; and a line connecting the annular outer zone and a central section of the spin element for recirculation of gas entrained by liquid entering the main vessel.