GAS-DISTRIBUTING STATION WITH ENERGETIC INSTALLATION

摘要

The invention relates to a gas-distributing station with an energetic installation using the energy of the gas in a main gas pipeline. The basic goal of the invention is to remove the gas pipeline temperature regime limitations, to raise the effectiveness of the energetic installation of the station and provide for its higher security. The goal is achieved due to the fact that the natural gas from the main gas pipeline (6) is fed to a heat-exchange regenerator (5) where it is heated by a return flow of the gas coming from a turbo-expander (1). From the heat-exchange regenerator (5) the gas first comes to a heat-exchange unit (4) where it is heated by the exhaust gas of a gas-turbine engine (3) and then it comes to the turbo-expander (1). In the turbo-expander (1) the gas is expanded with generation of energy transmitted to an electric generator (2) to which is kinematically connected the gas-turbine engine (3) for transferring its generated energy to the electric generator (2). The expanded and partially cooled gas after the turbo-expander (1) comes to the heat-exchange regenerator (5) for preliminary heating of the gas removed from the main gas pipeline and then is dropped to the main gas pipeline after a reducing device (7), having been cooled down to a temperature slightly exceeding that of the gas inside the main gas pipeline (6).