Closed drying device for photovoltaic power generation

The utility model discloses a closed drying device for photovoltaic power generation. The closed drying device comprises a solar power generation system, a drying chamber, a heat supply and humidity elimination drying system, wherein the drying chamber comprises an air inlet close to the bottom and a humidity eliminating opening close to the top; the air inlet is connected with a heat supply system; the humidity eliminating opening is connected with a humidity eliminating system; the solar power generation system comprises a photovoltaic module, an inverter and a controller; the closed drying device comprises an air source heat pump; the air source heat pump is respectively connected with the air inlet and the humidity eliminating opening of the drying chamber through circular air ducts to form the closed heat supply and humidity elimination drying system; the circular air ducts comprise air supply ducts arranged at the bottom of the drying chamber and air return ducts arranged at the top of the drying chamber; the air supply ducts and the air return ducts are respectively closed and communicated through a main air duct; the air source heat pump comprises two groups of condensation heat exchangers; one group of condensation heat exchangers are arranged in an air supply pipeline of the main air duct; the other group of condensation heat exchangers are arranged in an air return pipeline of the main air duct; a circular fan is arranged in the upper-middle part of the air return pipeline; an aerator is arranged in an air supply pipeline of the drying chamber.