Introduction To Impulse Steam Turbine
- Mar 17, 2020-
Introduction to impulse steam turbine
The impulse steam turbine is mainly composed of impulse stages, in which the steam mainly expands in the nozzle cascade, and only a small amount of expansion in the moving cascade. The dynamic and stationary cascade profiles of impulse turbines are different. The expansion of the air flow in the moving blade cascade is small, so the sectional shape of the moving blade cascade is approximately symmetrical. The turning angle of steam in the stationary blade cascade is small, the speed of entering the moving blade is large, the turning angle is large in the moving blade, and the moving blade loss is large.