Supercritical carbon dioxide closed cycle self-starting system

Abstract

The application discloses a supercritical carbon dioxide closed cycle self-starting system, which comprises an impulse turbine, shaft end positioning disc, thrust bearing seat, fixed base, spring, spring guide rail, thrust bearing, converging-diverging nozzle, high-pressure gas tank, closed cycle system, compressor, heater, high-pressure turbine, power turbine, generator, condenser, gas collecting tank and axial clutch. The starting system and the supercritical carbon dioxide closed cycle system are coupled, the residual energy of the supercritical carbon dioxide closed cycle system is utilized, the converging-diverging nozzle is utilized to accelerate the high-pressure gas bottle gas, the impulse turbine is impacted, the impulse turbine is driven to rotate, the turbine shaft of the impulse turbine is connected with the main shaft of the supercritical carbon dioxide closed cycle system through the axial clutch, and self-starting energy supply is realized. The application aims to solve the self-starting problem of the supercritical carbon dioxide closed cycle system and improve the emergency fault resistance and starting performance.

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