The invention discloses a multi-heat-source tobacco
drying system which comprises a multi-heat-source heating device, a heat storage water tank and a
drying room. The multi-heat-source heating device comprises a
solar heat collector and an air source
heat pump which are arranged in parallel, the one or more heat storage
water tanks are connected with the multi-heat-source heating device through heat preservation pipelines, and
energy storage water in the heat storage
water tanks is heated through the multi-heat-source heating device; heat dissipation coil pipes and fans are arranged in the one or more
drying rooms, the heat dissipation coil pipes are connected with the heat storage water tank through heat preservation pipelines, heat is released through
energy storage water introduced into the heat storage water tank, the fans are used for driving air in the drying rooms to pass through the heat dissipation coil pipes, and water pumps for driving the
energy storage water to circulate are arranged on the heat preservation pipelines.
Solar energy can be fully used for drying operation, the air source
heat pump is used as a supplementary heat source when the
solar energy is insufficient, and the technical problem that in the prior art,
solar energy is used as a heat source for drying operation, and the drying operation cannot be continuous due to the influence of
sunshine duration is solved.