The invention discloses a two-stage
heat pump drying system and method for
hydrogen-driven
coupling rotary wheel dehumidification. A
hydrogen fuel supply system of the two-stage
heat pump drying system comprises an upstream
hydrogen fuel system and a downstream
hydrogen fuel system. The hydrogen engine driving system comprises a hydrogen engine, a belt
pulley, a coupler, a gearbox, a water pump and a
flue gas
heat exchanger. The two-stage compression
heat pump system comprises a low-pressure-stage compressor, a high-pressure-stage compressor, an
intercooler, a
liquid storage device, an auxiliary condenser, a main condenser, an
evaporator, a throttling valve, a one-way valve and an
electronic expansion valve. The rotating wheel dehumidification system comprises a dehumidification rotating wheel, a total
heat exchanger, a regeneration fan, a dehumidification fan and a
drying box. The system is stable and efficient in operation, full utilization of
waste heat is achieved, the energy
utilization rate is increased,
energy conservation and emission reduction are achieved,
power consumption is reduced, and the service life is prolonged. Independent temperature and
humidity control can be achieved, the
heating efficiency and the drying rate in a low-temperature environment are improved, the
dew point temperature of dehumidified air is increased, and the drying effect is improved.