Design method for impeller and pumping chamber of high-lift peripheral pump
A pressurized water chamber and vortex pump technology, which is applied to parts, pumps, and pump components of elastic fluid pumping devices, can solve the problem of not proposing the design method of impeller and pressurized water chamber, increasing the manufacturing and processing of vortex pump units Difficulty, inability to adapt to changes in head working conditions, etc., to achieve the effect of improving internal flow conditions, increasing design head and design flow values, and stabilizing performance curve characteristics
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[0072] figure 1 and figure 2 Together, the geometrical and dimensional parameters of this high head scroll pump embodiment were determined. This is a vortex pump with closed impeller double-side open channel, the impeller blades (12) and the pressurized water chamber (8) are symmetrically arranged on both sides, and the impeller blades (12) adopt a straight blade structure, which is located in the impeller (7 ) is axisymmetrically distributed on the outer edge. The pressure water chamber (8) has a trapezoidal structure, and its flow area is larger than the design value of conventional vortex pumps, which is beneficial to reduce the hydraulic loss of the liquid in the pressure water chamber and improve the momentum exchange level of the liquid in the impeller blades (12). Water outer diameter D v2 (5) slightly larger than the outer diameter of the impeller D 1 (1), the width of the pressurized water chamber b 2 Greater than the impeller outlet width b 1 . The inlet pipe...
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