新型热泵干燥系统恒温干燥模式下的性能研究

Study on the Performance of a Novel Heat Pump Drying System under Constant Temperature Drying Mode

热泵干燥技术因其特殊的干燥原理既节能环保,又能保证产品的综合品质。本文通过实验研究与理论分析,对新型的多功能封闭式热泵干燥技术在恒温干燥模式下的性能进行了研究。当干燥条件和干燥阶段在不同的情况下时,最佳干燥介质旁通率也应随之变化,以实现能耗效益最大化的单位能耗除湿量(SMER)。实际干燥过程中,干燥温度的增加,热量产生量会随之增加。但温度超过一定范围后,性能系数(COP)会下降。因此,为了获得最佳的干燥性能,应该在合适的温度范围内选择干燥温度,并根据干燥介质参数实时调节旁通率。

The feasibility of heat pump drying technology's feasibility as a practical drying method is a result of its unique drying principle,which not only promotes energy conservation and environmental sustainability but also ensures the comprehensive quality of the products.Through experimental research and theoretical analysis,this study focuses on the performance of a novel multi-functional enclosed heat pump drying technology under a constant temperature drying mode.The bypass rate optimal adjustment of the drying medium is necessary to maximize the specific moisture extraction rate(SMER)and enhance energy efficiency based on varying drying conditions and stages.During the drying process,the increase in drying temperature leads to a corresponding increase in heat generation.However,it should be noted that the coefficient of performance(COP)decreases when the temperature exceeds a certain range.Therefore,achieving optimal drying performance involves selecting an appropriate drying temperature within a suitable range and dynamically adjusting the bypass rate based on the parameters of the drying medium.This approach ensures the highest efficiency of the drying system,resulting in the best dehumidification effects.