Two-stage supercharging organic Rankine cycle system with injection heat regenerator

The invention discloses a two-stage supercharging organic Rankine cycle system with an injection heat regenerator. The two-stage supercharging organic Rankine cycle system structurally comprises a first-stage working medium pump, the injection heat regenerator, a second-stage working medium pump, an evaporator, an expansion machine, a generator, a condenser, a liquid storage tank, a first valve and a second valve, an outlet of the first-stage working medium pump is sequentially connected with the injection heat regenerator, the second-stage working medium pump, the evaporator, the expansion machine, the second valve, the condenser and the liquid storage tank, a second inlet of the injection heat regenerator is connected to an outlet of the expansion machine through the first valve, fluid on one side of the evaporator comes from the second-stage working medium pump, and fluid on the other side of the evaporator comes from external heat source fluid; and fluid on one side of the condenser comes from dead steam