Medium-pressure module for supercritical 350MW three-cylinder steam turbine

The invention belongs to the technical field of steam turbines, particularly relates to a medium-pressure module for a supercritical 350MW three-cylinder steam turbine, and aims at solving the problems that an existing domestic medium-pressure module for the supercritical 350MW three-cylinder steam turbine is low in cylinder efficiency, large in steam inlet loss, high in cylinder end temperature and inconvenient to install on site when bulk parts are delivered. According to the medium-pressure module for the supercritical 350MW three-cylinder steam turbine provided by the invention, a medium-pressure outer cylinder is connected with a medium-pressure main steam adjusting combination valve, and a medium-pressure rotor and the medium-pressure outer cylinder are coaxially arranged; the medium-pressure rotor is arranged on the inner side of the medium-pressure outer cylinder; a medium-pressure cylinder end adjusting steam seal, a medium-pressure inner cylinder, a partition plate sleeve and a medium-pressure cylin