STEAM TURBINE PLANT

摘要

A steam turbine plant equipped with: a high-intermediate pressure turbine (21) provided with a high-pressure turbine unit (25) at one end in the axial direction (C) and an intermediate-pressure turbine unit (26) at the other end in the axial direction; low-pressure turbines (22, 23) arranged coaxially with the high-intermediate pressure turbine (21); high-pressure moisture separation/heating devices (27, 27a, 27b) that remove moisture from the steam from the high-pressure turbine unit (25) and then transmit the steam to the intermediate-pressure unit (26); and low-pressure moisture separation/heating devices (28, 28a, 28b) that remove moisture from the steam from the intermediate-pressure turbine unit (26) and then transmit the steam to the low-pressure turbines (22, 23). The high-pressure moisture separation/heating devices (27) and the low-pressure moisture separation/heating devices (28) are arranged symmetrically on the left and right with respect to a center line along the axial direction (C) of the high-intermediate pressure turbine (21). Thus, the structure can be simplified and the facility cost can be reduced.