For drying production lines of fruits, seafood, herbs and other products, a heat pump combined with a plate heat recovery unit recovers sensible and latent heat from drying exhaust, reducing compressor load and improving drying speed and product quality.
Used hygienic detachable plate heat exchangers to recover waste heat from 85C steam condensate to preheat boiler feedwater, saving 2.1 million Nm3 of natural gas per year, about 5.2 million RMB in cost, with only 0.8-year payback.