Research on the Influence of Heat Pump Injection on Tobacco Drying Machine System
By incorporating a heat pump ejector system into the steam system of a tobacco drying machine,and using the heat pump ejector system as the base load,while the original system served as the regulating load,the variation patterns of various parameters be-fore and after the incorporation were compared.The results showed that after incorporating the heat pump ejector system,the tobacco drying system achieved overall opti-mization.The wall temperature of the drying cylinder was increased to a certain extent,and the temper-ature uniformity also improved.The problem of poor drainage in the cylinder was completely resolved,and the uniformity of moisture content at the tobacco outlet was improved.According to the operating drainage pressure,it can be seen that the theoretical energy saving rate of steam injection on this sys-tem can reach 0.3％to 3.35％,but the actual energy saving effect needs to be matched and adjusted by operating parameters to achieve.
Steam Heat PumpTobacco Drying MachineDrainageEnhanced Heat Transfer
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