GEOTHERMIC INSTALLATION Russian patent published in 1996 - IPC

FIELD: heat and power engineering. SUBSTANCE:geothermic installation comprises an underground chamber with concentric tubular sections whose lower portions have circular steps. The lower part of one of said tubular sections has a bottom plate with a well drilled underneath with a temperature at its lower end varying from 99 to 105 C. Said well functions as a heat duct between the underground source of heat and a lifting chamber for heating the tubular sections. The well communicates through a hole with the cavity of the main vertical pipeline whose middle portion is perforated. Channels made in said tubular section and in plate of the underground chamber have channels communicating with its cavity, an underground source of heat and a pressure source of the flowing medium in the form of a pump. Pump pressure pipe communcates through a nonreturn valve and a system of pipes with channels. Pump suction pipe communicates with the outlet pipeline of the heating circuit. An additional pipeline is installed in the well and main vertical pipeline whose interwall space communicates with the underground source of heat. A gas-vapor turbine installed in the upper part of the additional pipeline is linked kinematically with an electric generator and communicates with a filter which is connected to a heating circuit via heat duct. Reliable performance of te gas-vapor turbine is ensured by nonreturn valves installed in the interwall space of the main and additional pipelines, and by a guide housing communiating with the filter while the upper end of the main veretical pipe is plugged. EFFECT: higher efficiency and improved design. 3 cl, 3 dwg