Waste heat recovery type two-stage coupling heat pump high-temperature drying unit

• Main Authors: SUN JUNBIAO, HUANG DEXIANG
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2023
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; DRYING; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM; HEAT EXCHANGE IN GENERAL; HEAT PUMP SYSTEMS; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; SEPARATION; TRANSPORTING; WEAPONS

The utility model discloses a waste heat recovery type two-stage coupling heat pump high-temperature drying unit, and belongs to the technical field of drying units. Comprising a coupling type drying heat pump assembly, a spraying waste heat recovery assembly and a drying assembly. The drying assembly is connected with the spraying waste heat recovery assembly through the exhaust device, and the spraying waste heat recovery assembly is connected with the fresh air inlet and used for preheating fresh air. A gas outlet of the spraying waste heat recovery assembly is connected with the coupling type drying heat pump assembly, and the coupling type drying heat pump assembly recovers heat of gas exhausted by the spraying waste heat recovery assembly and is connected with the drying assembly through the air supply device. The device fully and efficiently utilizes drying air exhaust heat, the waste heat recovery rate is effectively improved, and the problem that a heat pump cannot effectively provide high drying tem