Efficient recycling system for exhaust energy of internal combustion engine

An efficient recycling system for exhaust energy of an internal combustion engine, comprising:

• a thermoelectric generation device, a turbocharging device, and an organic Rankine cycle device,
• wherein the thermoelectric generation device comprises a radiator (2), a thermoelectric generator (3), a water tank (8), and a water pump (9);
• the turbocharging device comprises an adjustable geometric turbine (10), an air compressor (11), and a first intercooler (12);
• the organic Rankine cycle device comprises an organic working medium pump (14), an organic working medium liquid storage tank (15), an evaporator (13), a third expander (17), and a second condenser (16);
• the radiator (2) is located between the outlet of an exhaust manifold of the internal combustion engine and the inlet of the adjustable geometric turbine (10);
• the water pump (9) is connected to the water tank (8), and is used for pumping water out from the water tank (8) and pressurizing the water into high-pressure liquid water;
• the high-pressure liquid water flows through each of the surface of the volute of the adjustable geometric turbine (10) and the surface of the radiator (2) to perform heat exchange, and is heated into high-temperature high-pressure steam;
• the high-temperature high-pressure steam serves as a heat source of the thermoelectric generator (3);
• the air compressor (11) is coaxially connected to the adjustable geometric turbine (10);
• after the exhaust of the internal combustion engine passes through the radiator (2), high-pressure fuel expands and does work in the adjustable geometric turbine (10), and drives the air compressor (11) to rotate to do work, so as to generate high-pressure high-temperature air;
• the high-pressure high-temperature air enters the internal combustion engine to do work cyclically after being cooled in the first intercooler (12);
• part high-pressure low-temperature air flows out from the first intercooler (12) serves as a cold source of the thermoelectric generator (3);
• the organic working medium pump (14) is connected to the organic working medium liquid storage tank (15), and is used for pumping an organic working medium out from the organic working medium liquid storage tank (15) and pressurizing the organic working medium into a high-pressure liquid working medium;
• the high-pressure liquid working medium flows into the evaporator (13) to perform heat exchange with the low-temperature exhaust emitted from the adjustable geometric turbine (10), and is heated into a high-temperature high-pressure gas working medium;
• the high-temperature high-pressure gas working medium enters the third expander (17) to expand and do work;
• a low-temperature low-pressure gas working medium obtained after expanding and doing work in the third expander (17) enters the second condenser (16) to be cooled into a liquid working medium, and flows into the organic working medium liquid storage tank (15), thereby completing one-time work doing cycle of the system.