本文叙述了150 Nm~3/h制氧机空气轴承中压透平膨胀机的试验结果。对刚性装配及橡皮加稳的空气轴承进行了试验研究:研究了轴承径向间隙2 Cr、轴承供气压力 Ps、轴的材料及重量、橡胶 O 形圈的性能等参数对轴承失稳转速(自激涡动起始速度)的影响。作者还测定了轴承体的振动、轴承耗气量的变化、透平膨胀机热力性能。试验表明,该空气轴承中压透平膨胀机的性能是优良的。 This paper describes the test results of the mid-pressure turbo-expander of air bearing 150 Nm ~ 3 / h oxygen generator. The rigid assembly and rubber-stabilized air bearing were studied. The effects of parameters such as bearing radial clearance 2 Cr, bearing air pressure Ps, shaft material and weight, rubber O-ring performance on bearing instability speed Self-excited whirl movement of the initial speed). The author also measured the vibration of the bearing body, bearing air consumption changes, thermal performance of the turbine expander. Tests show that the performance of the air bearing medium pressure turboexpander is excellent.