Design method of regulating valve spool based on Chebyshev polynomial fitting
SHANG Xuan
HE Shiquan
Abstract：For the characteristics of the control valve spool in different flow characteristics with parabola con-tour,a design method of regulating valve spool based on Chebyshev polynomial fitting was proposed.According to the relationship between the flow coefficient and the flow area,the curve equation of spool was aquired by fitting the point on the spool contour which used the Chebyshev curve fitting method and then the Fluent was used for software simulation and experimental verification of the designed spool curve.The results showed that the deviation of the flow characteristic of the spool design was 1.9% ~14.1%,which conformed to the stand-ard IEC 60534-2-4:1989 in the range of 10.0% ~18.4%. The design method was practical and feasible.
Keywords：regulating valve spool designflow characteristicChebyshev polynomial fitting
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 102-108 )