Patent ID: 6138519
Filing Date: 2000-10-31
Classification: G01F

Abstract:
A device for measuring a flow rate of a gas flowing in one direction through a pipe, said device comprising a turbine wheel gas meter adapted to be placed in the pipe and a flow guide having a plurality of throughflow apertures adapted to be placed in the pipe at a distance upstream relative to the turbine wheel gas meter, said turbine wheel gas meter having a side facing the flow guide which includes a blunt, rounded nose part, said distance being such to provide a space between the flow guide and the turbine wheel gas meter for homogenizing gas flow by radial pulse exchange between the flow guide and said nose part, said flow guide comprising at least one dividing wall which is substantially concentric with an inside surface of a wall of the pipe, a number of uniformly distributed radial dividing walls extending on both sides of said at least concentric dividing wall, said at least one concentric wall and said radial dividing wall defining said throughflow apertures in said flow guide to constitute at least 80% of a cross sectional area of the pipe.