Lobe mixer with a fluid capture duct

摘要

A fluid mixer for mixing two fluid streams (40, 42) includes a set of main lobes (26) defining alternating primary and secondary main chutes (30, 32) one or more auxiliary lobes (28) intermediate two of the main lobes (26), and an auxiliary fluid capture duct (62). The auxiliary lobes (28) are defined, at least in part, by the discharge end (66) of the duct (62). In operation, the duct (62) conveys secondary fluid to secondary chutes (36) defined by the lobes (28) thereby improving the performance of the mixer (24) despite the presence of an obstruction (18) that would otherwise impede thorough mixing of two fluid streams (40, 42).