Heat recovery heat pump and energy-storage solar heat pump united drying system and control method

The invention discloses a heat recovery heat pump and energy-storage solar heat pump united drying system and a control method. A drying unit is respectively connected with a belt energy-storage solar heat pump ad a condensing type heat recovery heat pump, and a control unit is respectively connected with an energy-storage solar heat pump unit, a condensing type heat recovery heat pump unit and the drying unit. The control method adopts a solar heat pump drying operation mode, a solar heat pump drying and phase change energy-storage operation mode and a phase change energy-taking heat pump operation mode. By adopting the modes, the heat recovery heat pump and energy-storage solar heat pump united drying system and the control method can achieve a solar heat pump drying system capable of performing all-weather, uninterrupted, stable and efficient operation, achieve solar energy utilization rate maximization and meet the process requirements for drying most of materials.