| 摘要 |
A method and apparatus for dispersing and entraining and controlling the residence time, absorption and release of gas bubbles or particles in a fluid without losing gas utilization efficiency from escaping surface gas events. A mechanical, rotating plurality of hollowed blades that induce both an axial and radial controlled circulatory flow and provide a means of gas introduction into the discharge flow that has a conical helical, axial and radial outward flow from the axis of rotation and allows entrained gas bubbles to be trapped as particles and recirculated by means of a circulatory flow back into the intake vortex of said mechanical, rotating plurality of blades. The flow is characterized by a forced intake vortex caused by a low pressure zone with a radial component, and subsequent axial component drawing fluid in a circular fashion toward the eye of the rotating device and impelling fluid. The gas entrained flow, while passing through the discharge outlet, can be considered a single phase fluid due to a low pressure differential between the intake side of the rotating blade and the external side of the rotating blade, preventing gas particles from expansion and or compression which could result in a stalled or flooded condition. The flow is further characterized as leaving the rotating body at an angle falling between perpendicular to the axis of rotation and the vessel wall, resulting in low surface turbulence in the vessel and the formation of a circulatory flow that allows the fluid to move down the vessel wall to be pulled in again by the intake vortex. The gas introduction provides sufficiently small enough bubbles to be entrained by a strong circulatory flow with a strength determined by rotational speed and blade angle. |
