Patent ID: 9068671
Filing Date: 2015-06-30
Classification: E02B,F03B,F16L,Y02E,Y10T

Abstract:
1. An aerated swirling vertical shaft with double volute chambers, comprising: an upper volute chamber ( 2 ) and a first shrinking section ( 3 ) beneath the upper volute chamber ( 2 ), a venting passage ( 4 ) outside the upper volute chamber ( 2 ), a vertical shaft section ( 7 ) beneath the first shrinking section ( 3 ), and further comprising an aerated lower volute chamber ( 5 ) and a second shrinking section ( 6 ) communicated with the aerated lower volute chamber ( 5 ) between the first shrinking section ( 3 ) and the vertical shaft section ( 7 ), wherein the upper end of the aerated lower volute chamber ( 5 ) is connected with the first shrinking section ( 3 ), the lower end of the second shrinking section ( 6 ) is connected with the vertical shaft section ( 7 ); the upper end of the venting passage ( 4 ) is communicated with the atmosphere and the lower end is communicated with the aerated lower volute chamber ( 5 ).