Multi-stage coupled closed-type drying heat pump system with dynamic cooling and heating balance adjustment

A multi-stage coupled closed-type drying heat pump system with dynamic cooling and heating balance adjustment is presented. The multi-stage coupled closed-type drying heat pump system with dynamic cooling and heating balance adjustment consists of a heat pump unit, a chilled water system and an evaporator, the heat pump unit comprises a compressor, a condenser, a throttling element and an evaporator. The utility model innovatively puts forward the innovative design of the frozen water system and the auxiliary cold/heat source system, which can realize the dynamic cold-heat balance adjustment of the whole process of the heat pump drying unit through the design and operation levels, the cooling water system and the auxiliary cooling/heating source system can be dynamically adjusted according to the demand of cooling and heating load. The cooling water system and the auxiliary cooling/heating source system can be adjusted dynamically according to the demand of cooling and heating load, compared with the traditional closed-type drying heat pump system, it has more flexibility and wider adjustment range.