FLOW METER FOR TWO-PHASE FLUID USING A MASS FLOW METER AND A THREE-WAY VALVE

摘要

The invention pertains to a flow meter for cryogenic two-phase gas/liquid fluids comprising: - a gas/liquid phase separator (1), preferentially formed of a tank, in the upper part whereof the cryogenic liquid is introduced; - a liquid flow sensor (2) of the Coriolis mass flow meter type, located on a liquid conduit (Ph L) in fluid communication with the lower part of the separator; - a gas conduit (Ph G), in fluid communication with the upper part of the separator; and - a three-way valve (3) capable of accommodating on two of its paths the downstream end of said gas conduit and the downstream end of said liquid conduit; the three-way valve being controlled by a regulator that receives information on the density of the fluid passing through the fluid branch and/or information on the level of the liquid in the separator, then reacts by setting the position of the three-way valve and thereby regulates the flows circulating in the two branches (liquid and gas) of the system.