空分装置中的透平膨胀机,是一种高速机械,目前这种机器上的轴承均采用油润滑。为避免润骨油对工质的污染,提高膨胀效率,更新传统的油轴承是有意义的。为此,我们研究了国产6000m~3/h制氧装置中透平膨胀机的轴承系统,肯定了在这种机械上应用气体轴承的可行性。 Turbochargers in the air separation unit are high-speed machines that are currently lubricated with bearings. In order to avoid the contamination of working fluid by the lubricating oil, it is meaningful to improve the expansion efficiency and renew the traditional oil bearing. For this reason, we have studied the bearing system of the turbo-expander in a 6000m ~ 3 / h oxygen plant made in China, and confirmed the feasibility of applying gas bearings to such machinery.