Apparatus and method separating particles from a cyclonic fluid flow including an apertured particle separation member within a cyclonic flow region

摘要

A separator for separating entrained particles from a fluid flow incorporates a cyclone chamber having an outer wall and a cyclonic flow region; a fluid inlet for introducing a cyclonic fluid flow to the cyclonic flow region; a fluid outlet for removing the fluid flow from the cyclone chamber; a particle separation member positioned in the cyclone chamber beneath at least a portion of the cyclonic flow region, the particle separation member having an upper surface and plurality of apertures; and a particle receiving chamber disposed beneath the particle separation member for receiving particles passing into the particle receiving chamber through the apertures. In operation, a fluid is introduced to flow cyclonically in a chamber having a cyclonic flow region and a particle separation member positioned in the cyclone chamber to define a particle receiving chamber. The back pressure in the chamber is adjusted to promote the formation of a laminar boundary layer adjacent the particle separation member. Particles from the fluid flow in the cyclone chamber are then removed via passages provided in the particle separation member, and the fluid flow is removed from the chamber.