Little steam turbine energy cascade utilization system of thermal power plant

The utility model relates to a little steam turbine energy cascade utilization system of thermal power plant. There is a great deal of shortcoming in the steam -operating for water pump system and steam -operating draught fan system at present. The utility model discloses a system includes main steam turbine, main admission pipe, main admission adjusting valve, the little steam turbine of drive water -feeding pump, water -feeding pump connecting axle and water -feeding pump, and its characteristics are: still include an admission pipe, a governing valve, a little steam turbine of drive draught fan, a draught fan connecting axle and a draught fan, the one end of admission pipe is connected on the little steam turbine of drive water -feeding pump, and the other end of this admission pipe is connected on a little steam turbine of drive draught fan, no. One the governing valve is installed on admission pipe, the one end of a draught fan connecting axle is connected on a little steam turbine of drive draught fan, and the other end of this draught fan connecting axle is connected on a draught fan. The utility model discloses can make things convenient for, effectual realization energy cascade utilization.