Design of A New Non-Contact Screw Seal and Determination of Performance Characteristics

Non-contact seals are optimal solutions for the applications operating with relatively high speeds.In these seals, positively displacement pump's principle is applied.One sub-category of non-contact seals, screw seals are studied in detail, including their working principles, operating limits and technical properties.In current work, two part screw geometries having right and left hand screw threads on each side is developed for analysis.Mainly, sealing performance of contactless screw seals is investigated both experimentally and numerically.For this purpose, a new test system is designed.Seal system is tested both oil-free and oil-supplied running conditions.The pressure distribution and friction torque values are recorded on the experiments.Numerical analysis are carried out regarding experimental data.