Get Centrifugal pumps : design & application PDF

By Val S. Lobanoff

ISBN-10: 087201200X

ISBN-13: 9780872012004

Centrifugal Pumps: layout and alertness, moment variation specializes in the layout of chemical pumps, composite fabrics, production thoughts hired in nonmetallic pump purposes, mechanical seals, and hydraulic design.

The e-book first deals info at the parts of pump layout, particular velocity and modeling legislation, and impeller layout. Discussions concentrate on form of head potential curve, pump pace, viscosity, particular gravity, correction for impeller trim, version legislations, and layout feedback. The ebook then takes a glance at normal pump layout, volute layout, and layout of multi-stage casing.

The manuscript examines double-suction pumps and side-suction layout, web optimistic suction head, and vertical pumps. themes contain configurations, layout positive factors, pump vibration, influence of viscosity, suction piping, excessive velocity pumps, and aspect suction and suction nozzle structure. The booklet additionally ponders on excessive velocity pumps, double-case pumps, hydraulic energy restoration generators, and shaft layout and axial thrust.

The publication is a necessary resource of knowledge for pump designers, scholars, and rotating gear engineers.

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Extra resources for Centrifugal pumps : design & application

Example text

2 times C M1 , Development of Impeller Vane Begin the vane development by drawing a line equal to the discharge angle. On the end view estimate and locate the distance ar. Transmit ar to discharge angle line on the vane development establishing the distance a. Transmit a to the front shroud on the impeller profile (plan view). Measure R2, then scribe R2 on the end view, locating Point 2. Check to see if the estimated ar was approximately correct, making a new estimate and repeating the process if necessary.

In establishing discharge geometry for double suction impellers, use factors as given in this chapter. 09 impeller Design 37 (2) 5 , as final results will not be accurate. On the impeller suction side however, divide the inlet flow and eye area by 2 for each side of the impeller centerline. Impeller Layout Development of Impeller Profile (Plan View) Lay out the impeller width b2 at full diameter (Figure 3-9). Begin to develop the hub and shroud profiles by expanding this width by approximately 5° on each side of the vertical center line toward the suction eye.

Example The requirements for a new pump are shown on curve Figure 3-1, which at Best Efficiency Point (BEP) is: 2,100 GPM—450 ft-3,600 RPM-Liquid—Water Step 1: Calculate pump specific speed. Impeller Design 29 Figure 3-1. Required performance of new pump. Step 2: Select vane number and discharge angle. The desired head rise from BEP to zero GPM is 20% continuously rising (Figure 3-1). To produce this head rise, the impeller should be designed with six equally spaced vanes having a 25° discharge angle (Figure 3-2).

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Centrifugal pumps : design & application by Val S. Lobanoff


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Categories: Fluid Dynamics