WSEAS Transactions on Fluid Mechanics
Print ISSN: 1790-5087, E-ISSN: 2224-347X
Volume 11, 2016
Regulation Performance of Regulatable Dry Gas Seal
Authors: , , , ,
Abstract: It is important for the regulatory efficiency and the popularization of R-DGS to study on the regulation performance of a Regulatable Dry Gas Seal (R-DGS). Based on gas lubrication theory, a numerical model for R-DGS was set up, the Steady Reynold equation and Disturbance Reynold equation were resolved by using finite element method to obtain the equilibrium film thickness, leakage rate and dynamic parameters. The universal law of the seal parameters was obtained under difference regulation ratio Γ and shaft speed. The running regulation test is processed and the regulation reliability of R-DGS with outer regulative gas source is proved. The results show that the sealing performance of R-DGS changes obviously with the regulation ratio (Γ); and the shaft speed also effect the sealing performance when the regulation ratio is Γ<1.5. Comprehensive regulation performance of Pi-DGS is better than Po-DGS. The research results verify the feasibility of R-DGS and provide a reference for user to design and regulatory the R-DGS.
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Pages: 18-24
WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 11, 2016, Art. #3