Steam turbine is a kind of rotating power machine that uses steam to do work. It can convert the thermal energy of steam into the rotational mechanical energy of the turbine shaft. In a steam turbine, steam expands in the nozzle, so the pressure and temperature of steam decrease, the speed increases, and the thermal energy of steam is converted into kinetic energy. Then steam flows out of the nozzle and is sprayed on the blades at high speed. When the high-speed steam flows through the moving blade group, due to the change of steam flow direction, the impact force is generated on the blades, which pushes the impeller 2 to rotate and do work, and the impeller drives the turbine shaft to rotate, thus completing the conversion of steam thermal energy to shaft rotational mechanical energy.
Extension of knowledge points:
Steam turbine is a kind of rotating power machine that converts steam energy into mechanical work. Also known as a steam turbine. Mainly used as the prime mover of power generation, it can also directly drive various pumps, fans, compressors and ship propellers. You can also use the exhaust steam or intermediate extraction steam of the steam turbine to meet the heating needs in production and life.