AERATION SWIRLING FLOW VERTICAL WELL WITH DOUBLE VOLUTE CHAMBERS

摘要

An aeration swirling flow vertical well with double volute chambers comprises an upper volute chamber(2) and a first shrinking section (3) beneath the upper volute chamber (2), a venting passage (4) provided outside the upper volute chamber(2), a vertical well section (7) beneath the first shrinking section (3), as well as an aeration lower volute chamber (5) and a second shrinking section (6) communicated with each other between the first shrinking section (3) and the vertical well section (7). The upper end of the aeration lower volute chamber (5) is connected to the first shrinking section (3), and the lower end of the second shrinking section (6) is connected to the vertical well section (7). The upper end of the venting passage (4) is communicated with outside and the lower end is communicated with the aeration lower volute chamber (5). The water current in the vertical well can be discharged smoothly and the wall of the vertical well may avoid being destroyed because of cavitation and cavitation erosion.