搅拌器叶轮BT-6

轴向流量

对BT-6叶轮提供了本领域技术中的气体分散的应用状态。它是用最先进的流量测量技术和即使是最高流速其专利刀片的几何形状有效地分散气开发。Due to the efficient dispersion mechanism of the BT-6, this impeller can handle more than five times as much gas as the D-6 impeller (Rushton turbine) before flooding, and more than twice as much as Chemineer’s concave blade CD-6 impeller (Smith turbine). Another benefit of the BT-6 impeller is a very flat power draw curve under gassed conditions. Since its power draw varies little with gas flow rate, the BT-6 impeller is particularly well suited for applications where gas flow rates change during the process, such as Hydrogenators. Another advantage of the more constant power draw is that changes in mass transfer during the process are smaller than with other impellers. The power draw of the BT-6 shows minimal variation when exposed to changes in liquid viscosity; it remains constant for Reynolds numbers well below one thousand, which corresponds to viscosities of several thousand centipoise in typical industrial applications. The blade design, asymmetric about the plane of the disc, has been optimized to take into account the different flow conditions above and below the disc. The BT-6 impeller’s asymmetric design allows the overhang on the top of the blade to capture the rising gas flow. The gas flow is then dispersed from a strong turbulent vortex on the inside of the deep blade. No cavities form on the trailing edges of the blades