INSTALLATION FOR UNDERGROUND GASIFICATION OF FUEL Russian patent published in 2016 - IPC E21B43/295 C10J3/00 

FIELD: energy.

SUBSTANCE: invention relates to devices for generation of heat and electric energy at place of their generation by conversion of solid hydrocarbon fuel into gaseous fuel due to in-bed underground fire gasification. Plant comprises gas turbine, electric generator, air compressor with suction line of atmospheric air and air supply line, steam generator with a feed water line, gas scrubber with gas supply line to consumer, gas discharge and blowing pipes fixed in wells. Gas turbine is connected with electric generator, air compressor, steam generator and by means of gas discharge line with gas discharge pipes. Steam generator is connected to gas scrubber and by means of steam supply line with blow pipes, and on gas discharge line and steam supply line there are motor driven valves. Plant additionally comprises a gas receiver, fuel gas supply line, bypass pipe, inclined-horizontal pipes located outside boundary of displacement of fuel rocks, flexible tubes located inside inclined-horizontal tubes, gas burners and secondary ignition of gasified fuel. Each flexible tube is connected by one end with a gas burner for secondary ignition of gasified fuel, configured for displacement, and by other end with fuel gas supply line. Inter-tube space of inclined-horizontal tubes is connected by means of air feed line to output of injection side of air compressor. Gas receiver is connected by means of bypass pipes with gas supply line to consumer and fuel gas supply line, which is connected to external gas line with electrically driven gate valve. Electric generator is configured to perform function of starter-generator, and bypass pipe is fitted with motor driven valves.

EFFECT: high efficiency of underground gasification of fuel and reducing losses during emergency failure of wells.

1 cl, 1 dwg