Automatic controllable harvester diesel engine waste heat recovery device

The invention discloses an automatic controllable harvester diesel engine waste heat recovery device. The automatic controllable harvester diesel engine waste heat recovery device is composed of a harvester diesel engine, a three-way control valve, a wind scooper, a wind feeding pipe, a fan, an alternating current dynamo, a frequency converter, a first heat exchanger, a second heat exchanger, a wind exhausting pipe, a temporary storage tank, a solenoid valve, an expansion water tank, a water tank, a radiator, a control cabinet, a temperature sensor and a pressure sensor. The automatic controllable harvester diesel engine waste heat recovery device can efficiently recover harvester diesel engine waste gas, cooling liquid and radiator hot air waste heat under the condition that the power ofa diesel engine is not influenced, and the flow and temperature of hot air can be automatically adjusted to the best range suitable for grain drying according to the drying characteristics of different kinds of grain. 本发明公开了种