| 摘要 |
A sealing system of turbo-compressor has face gas-dynamic seals, two-stage labyrinth seals between stages of which leveling chambers are installed, and a line of gas supply to chambers between the face and labyrinth seals where installed are a check valve, filters and restrictor of gas flow rate arranged for instance as controller of pressure drop or control valve. In the system a line for gas supply is additionally installed, this connects section of pipeline of bypass line for filling up gas contour of turbo-compressor between the valve of filling up gas contour and throttle valve to main line of gas supply to chambers between the end and labyrinth seals at section between the check valve and filter. In the additional line a check valve is installed. At that the volume of pipelines, filters and control fittings of sealing system is smaller compared to the volume of pipelines of gas contour and flow-through section of turbo-compressor, and hydraulic resistance of the additional supply line is smaller compared to hydraulic resistance of two-stage labyrinth seal. Besides that, in the line of gas supply downstream of check valves a tank can be additionally installed. Its volume is much smaller compared to volume of gas contour. |
