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    • 9. 发明公开
    • Cryogenic turbo-expander
    • Turboexpanderfürkryogene Flussigkeit
    • EP1057977A2
    • 2000-12-06
    • EP00304581.2
    • 2000-05-31
    • Cryostar-France SA
    • Pozivil, Josef
    • F01D25/18F01D25/20F01D15/08F01D21/00
    • F25J3/04866F01D15/005F01D25/18F01D25/20F25J2205/84F25J2230/20F25J2240/02
    • A cryogenic turbo-expander has a rotary shaft (10) which carries a turbine wheel (6) and carries or is operatively associated with an energy dissipating means (8) and which extends axially through a sleeve (12). First race means (80, 84) surrounding the shaft (10) and housing first bearing means (82) for the shaft (10). Second race means (90, 94) surround the shaft (10) and house second bearing means (92) for the shaft (10). The first and second bearing means are axially spaced from one another. Each race (80,84; 90, 94) has an aperture (86, 96) therein extending from an outer to an inner surface thereof communicating with a lubricating oil passage (52, 56) extending from an outer surface to an inner surface of the sleeve (12). Both race means (80, 84; 90, 94) are arranged so that spent lubricating oil can pass therefrom to a common drain passage (58). The cryogenic turbo-expander additionally includes a reservoir (40) for lubricating oil communicating with the aperture (86) in the first race means (80, 84) via an intermittently-operable metering pump (50) and with the second race means (90, 94) via an intermittently operable metering pump (54).
    • 低温涡轮膨胀机具有旋转轴(10),该旋转轴(10)承载涡轮机叶轮(6)并承载或者与能量消散装置(8)可操作地相关联并且轴向延伸穿过套筒(12)。 围绕轴(10)的第一座圈装置(80,84)并且容纳用于轴(10)的第一轴承装置(82)。 第二座圈装置(90,94)围绕轴(10)并容纳用于轴(10)的第二轴承装置(92)。 第一和第二轴承装置彼此轴向间隔开。 每个座圈(80,84; 90,94)具有一个从外表面延伸到内表面的孔口(86,96),该孔口与从外表面延伸到内表面的润滑油通道(52,56)连通, 套筒(12)。 两个排水装置(80,84; 90,94)都布置成使得废润滑油可以从其中通过共同的排放通道(58)。 低温涡轮膨胀机还包括用于通过间歇可操作的计量泵(50)和第二座圈装置(90)在第一座圈装置(80,84)中与孔(86)连通的润滑油的贮存器(40) ,94)通过间歇可操作的计量泵(54)。