Steam turbine energy saving improvement structure and improvement method thereof

The invention discloses a steam turbine energy saving improvement structure and an improvement method of the steam turbine energy saving improvement structure. The steam turbine energy saving improvement structure comprises a steam cylinder, a steam chamber, a regulating valve, a nozzle set, a single-row regulating-stage impeller, a pressure-stage impeller, multi-stage separating plates, separating plate steam seals, separating plate grooves, a front base frame, a rear base frame, a bearing, a jigger, a rotor assembly, a bearing box, front steam seals, rear steam seals and a coupling. The steam turbine energy saving improvement structure and the improvement method of the steam turbine energy saving improvement structure have the advantages that the investment is low, the construction period is short, operation is easy, the rotating speed of an existing steam turbine is unchanged, the efficiency is high, the efficiency, the safety and the stability of an improved set in the practical running process meet the predetermined requirements, and the effect is quite good.