A VORTEX FLOW CONTROL DEVICE DESIGNED TO INDUCE TURBULENCE AT ITS INLET

摘要

Disclosed is a vortex flow control with a template unit (2) having end walls (4, 6), of which the wall (4) has an outlet opening (5), and a partial outer wall (8). The partial outer wall comprises a curved portion which extends about an axis perpendicular to the end walls and has an opening (16). A plate (26) is subsequently secured to the template unit to partially close the opening to leave an inlet. The inlet is configured so that fluid entering the vortex chamber through the inlet induces a circulating flow within the vortex chamber about the axis. The size of the plate is selected so as to result in an inlet sized to achieve required flow characteristics for the finished device. The plate is inclined to a planar portion (14) on the opposite side of the inlet at an angle in the range 85° to 95°, so as to induce turbulence in the region of the inlet.