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RESEARCH PAPERS

Development of Prototype Pump Using a Vibrating Pipe With a Valve

[+] Author and Article Information
Hiroyuki Hashimoto, Rokuro Sato

Tohoku University, 2-1-1 Katahira, Aobaku, Sendai-shi, 980 Japan

Hirokuni Hiyama

Ebara Research Co., Ltd., 4-2-1 Honfujisawa, Fujisawa-shi, 251 Japan

J. Fluids Eng 116(4), 741-745 (Dec 01, 1994) (5 pages) doi:10.1115/1.2911844 History: Received August 11, 1993; Revised October 06, 1993; Online May 23, 2008

Abstract

Tests were conducted on a prototype pump which has an extremely simple structure and excellent controllability. Its structural and hydrodynamic features are different from those of previous conventional reciprocating pumps. The pump structure constitutes a leak-proof short vibrating pipe equipped with a nonreturn valve on the edge of its outlet. The authors developed a prototype pump which uses a 25 mm diameter vibration pipe and an electromagnetic excitation device. The pump performance, intentionally changed by adjusting the coil voltage or the coil current frequency, featured a maximum pressure of approximately 1.0 bars, a maximum flow rate of approximately 40 liters per minute, and a maximum efficiency of approximately 30 percent. Results of both a one-year test run, using water as the working medium, and a three-month durability test, using concentrated nitric acid as the working fluid, assuming application as a chemical pump, indicated favorable results.

Copyright © 1994 by The American Society of Mechanical Engineers
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