How to Design a heat pump drying system for drying production

How to Design a heat pump drying system for drying production with the most stable and reliable drying unit project ? Here is a good example to the project with an energy-saving transformation project of leather gelatin long net drying production line system. The process flow of the project is fresh air - medium efficiency filtration - fresh air pretreatment - return air of the production line - medium efficiency filter - dehumidification of lithium chloride solution - air supply cabinet - heating and drying in the drying room - exhaust fan - exhaust (return air), with a total circulating air volume of 90000 M ³/ h. The low-temperature dry air dehumidified by the lithium chloride solution dehumidifier enters the long net drying room and is heated by steam to meet the drying process requirements. Part of the dried high-temperature and high humidity air is directly discharged outdoors through the exhaust fan, and part of it returns to the air conditioning cabinet and lithium chloride solution regenerator. Such circulation will discharge great heat every day, resulting in serious energy waste. According to the process production requirements, this design includes the design contents of production line chilled water, drying room hot water and exhaust heat recovery .

1: Original configuration of production line

2: Heat recoverable from the production line