FIELD: heating.
SUBSTANCE: invention is intended for simultaneous generation of heat and electric power. A cogeneration plant comprises a gas reciprocating internal combustion engine (ICE), a heat recovery system, a digester-reactor, a vortex heat generator, a device for electric power generation using low-potential heat carriers and emergency-auxiliary heat power installation with diesel ICE. The pump of the gas reciprocating ICE cooling system is connected to the heat exchanger-heat recovery unit of the gas reciprocating ICE. The circulation pump of the heat recovery system is connected to the heat exchangers of this system and the heat exchanger-heat recovery unit of the vortex heat generator. Waste gases of the gas reciprocating ICE are led to the heat exchanger-heat recovery unit for their heat, afterwards they are led to the device for electric power generation using low-potential heat carriers. The waste gases are partially led to the digester-reactor as well. The biogas which is produced in the digester-reactor is led to the natural gas pipeline via a back pressure valve. The emergency-auxiliary heat power installation with diesel ICE is connected to the gas reciprocating ICE cooling system via a back pressure valve. An air cooler for the recovery of heat of the gas reciprocating ICE is connected to the gas reciprocating ICE cooling system via a three-way cock. The air duct of the air cooler is connected to the device for electric power generation using low-potential heat carriers.
EFFECT: invention is aimed at increased plant efficiency.
1 dwg
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