CONTROL SYSTEM OF PROCESS GAS LOSSES OF GAS-DYNAMIC SEALS Russian patent published in 2013 - IPC F04D29/08 F04D25/02 

FIELD: machine building.

SUBSTANCE: system is equipped with gas-dynamic seals with two protection stages, piping arrangement of a system of gas-dynamic seals for supply of buffer gas from station network to an instrumentation panel of gas-dynamic seals, which includes pressure gauges, differential pressure sensors, a gas metre with output of readings to the main control panel, a throttle plate for damping, an electric binding line of the instrumentation panel and outlet pipeline of buffer gas leaks after the first stage of gas-dynamic seals to a plug. Besides, gas leak outlet pipeline after gas-dynamic seals is connected through an additional shut-off valve to a gas-collecting manifold equipped with instruments and shutoff-control safety valves and an accumulating receiver. The accumulating receiver is connected through suction pipelines to gas transfer compressors that are installed parallel to each other and connected via discharge pipelines to a fuel gas supply pipeline for auxiliaries of production with pressure of more than 3 kgf/cm² and through a pressure-reducing valve to the gas-collecting manifold.

EFFECT: stabilisation of gas pressure and improvement of operation reliability of the system.

1 dwg