Pre-swirl system and gas turbine including the same

摘要

The present invention relates to a free swirl system capable of securing an optimum flow rate and flow rate by adjusting an area in which air flows, and a gas turbine including the same. The present invention for solving the above problems involves swirling air. A plurality of swirl units for each of the plurality of swirl units and adjacent adjacent swirl units to connect the plurality of swirl units in a circle, each of the plurality of connecting units being along a circumferential direction of the plurality of swirl units. Provided is a free swirl system characterized by being flexible.