Adjustable axial flow pump with front guide vanes
A front guide vane, adjustable technology, applied in the field of hydraulic machinery, can solve problems such as unstable hydraulic characteristics and complex internal flow
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[0019] In engineering practice, due to changes in flow and water level, axial flow pumps often operate under non-design conditions, and there is an angle of attack at the head of the impeller, causing hydraulic loss, resulting in unstable operation, decreased efficiency, and prone to cavitation. . The present invention sets an adjustable guide vane device in front of the runner of the traditional axial flow pump.
[0020] An axial flow pump with adjustable front guide vanes, the front guide vanes 4 are arranged in the suction chamber 3 between the pump casing 1 and the diversion cap 2, and one end is movably connected with the bearing 6 on the diversion cap through the shaft 5, The other end is movably connected with the bearing on the pump casing through the shaft, and the shaft connected with the pump casing goes out of the pump casing to connect with the peripheral angle adjustment device.
[0021] The inlet edge 9 of the front guide vane is inclined, and the outlet edge 1...
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