Heat regeneration system of industrial heat supply steam turbine

The invention relates to the technical field of steam turbine regenerative systems, in particular to an industrial heat supply steam turbine regenerative system which comprises a boiler and a main steam turbine, and the boiler is connected with the main steam turbine and sends steam into the main steam turbine. A high-pressure cylinder of the main steam turbine is connected with a high-pressure heating system and conveys steam to an intermediate-pressure cylinder through an output structure, the intermediate-pressure cylinder conveys the steam to a low-pressure cylinder through an output structure, and the low-pressure cylinder is connected with a power generation system and a cooling system. The stepped utilization steam turbine is communicated with an intermediate-pressure cylinder of the main steam turbine and obtains steam from the intermediate-pressure cylinder, the stepped utilization steam turbine is connected with a low-pressure heat regeneration system, and meanwhile the stepped ...