FIELD: power engineering.
SUBSTANCE: invention relates to anaerobic power engineering and can be used in air-independent power plants with heat engines and especially in ship power plants of underwater vehicles operating without atmospheric air access. In the beginning, the entire flow of the circulating flow of liquid CO2 is cooled to 218÷220 K in heat exchange with the stream of liquid O2 by evaporation of part of liquid O2, wherein flow rate of liquid O2 corresponds to flow rate to obtain optimum composition of artificial gas mixture required for operation of power plant, after which during heat exchange with dried flow of gas mixture flow of liquid CO2 is heated to 237÷238 K and re-cooled to temperature of 220÷222 K due to complete evaporation of liquid O2 and heat exchange with gasified O2, which is heated to 235÷236 K, and dried flow of gas mixture cooled to 220÷222 K during heat exchange with liquid CO2 at pressure of 1.6÷2.0 MPa is divided into liquid CO2 and uncondensed gas mixture O2 and CO2, wherein the uncondensed gas mixture flow ejected through ejection and is mixed with the flow of gasified O2, after which O2 enriched backflow direct heat exchange in a first stage, where it is heated to temperature of 305÷310 K and connected to uncleaned part of recirculation flow, and obtained artificial gas mixture is supplied to power plant.
EFFECT: invention simplifies the technological process, increases reliability and efficiency of producing artificial gas mixture of CO2 liquefaction cryogenic cycle for air-independent power plants operating in a wide range of loads.
1 cl, 1 dwg
