水力空化及其对化工过程的强化作用

Hydrodynamic cavitation and its enhancement effects on chemical processes

通过碘化钾分解、酵母微生物细胞破壁以及油脂和纤维素水解实验结果,说明了水力空化对化工过程的强化作用;通过与超声空化实验结果的比较,说明了水力空化对化工过程的强化具有简便易行、能耗低、效率高等特点;实验考察了水力空化的演变过程,说明了空化区的结构、强度及作用效果,是开发水力空化强化化工过程的关键。

The enhancement effects of hydrodynamic cavitation on chemical processes was demonstrated by experimental results of KI decomposition,disruption of yeast cells,and hydrolysis of fatty oils and cellulose.The hydrodynamic cavitation for enhancing chemical processes was featured by easy operation,low energy consumption and high efficiency,etc.in comparison with ultrasonic cavitation.The flow regime transitions of hydrodynamic cavitation were studied experimentally,which shows that the structure, strength and effect of the cavitation region are the key to the development of hydrodynamic cavitation for enhancing chemical process.