| 摘要 |
PROBLEM TO BE SOLVED: To provide a tandem arrangement of process seals prevented in the leakage of a lubricant and a process fluid from a gearbox and a turbo machine. SOLUTION: A process fluid transport system 20 includes the gearbox seal 24 attached to a gearbox housing 28 and the secondary process seal 22 attached to a turbo machine housing 30. The seals 22, 24 receive films formed of air or inert gas and the films reversely flow from a fluid source 26 through an area which is normally a vent area to seal faces and into the gearbox housing 28 and turbo machine housing 30, respectively. This provides a significant environmental advantage since the leakage of the process fluid wholly returns to a primary vent area 36 between the secondary process seal 22 and a primary process seal 38 and the process fluid which may leak to the outside flows to a flare system 40 in a normal state. COPYRIGHT: (C)2011,JPO&INPIT |
