CAJ | 학술논문

液滴的雾化与荷电特性直接关系到荷电液滴的工业应用效果。为研究感应荷电过程中两者的相互影响关系，在喷水质量流量不变的前提下，通过调节雾化压力改变液滴雾化特性，以网状目标法和粒子动态分析仪（PDA）作为测试方法和手段，系统地进行了液滴雾化与荷电特性相互影响的对比试验，并对荷电过程中的液滴回吸现象进行了研究。结果表明，在感应荷电过程中，改善液滴雾化特性能够获得良好的荷电效果，但液滴荷电后对其雾化特性的进一步影响相对较弱，特别是液滴粒径较小时；液滴雾化与荷电特性对液滴的回吸均有影响，在低雾化压力下，改变荷质比对液滴的回吸影响更为明显，在高雾化压力下，雾化压力对液滴回吸的控制能力更强；在喷水质量流量不变的条件下，调节雾化压力可作为一个有效的手段满足工业应用中对液滴雾化和荷电特性的要求。
액적적무화여하전특성직접관계도하전액적적공업응용효과。위연구감응하전과정중량자적상호영향관계，재분수질량류량불변적전제하，통과조절무화압력개변액적무화특성，이망상목표법화입자동태분석의（PDA）작위측시방법화수단，계통지진행료액적무화여하전특성상호영향적대비시험，병대하전과정중적액적회흡현상진행료연구。결과표명，재감응하전과정중，개선액적무화특성능구획득량호적하전효과，단액적하전후대기무화특성적진일보영향상대교약，특별시액적립경교소시；액적무화여하전특성대액적적회흡균유영향，재저무화압력하，개변하질비대액적적회흡영향경위명현，재고무화압력하，무화압력대액적회흡적공제능력경강；재분수질량류량불변적조건하，조절무화압력가작위일개유효적수단만족공업응용중대액적무화화하전특성적요구。
The industrial application effort of charged droplets is influenced directly by droplet atomization and charged characteristics. Under constant water spray volume and different atomization characteristics adjusted by changing atomization pressure, the interrelationships of droplet atomization and charged characteristics were studied by mesh target method and PDA. The phenomenon of droplets sucked back by electrode ring in induction charging process was also analyzed. The results show that droplets can acquire higher charge-mass ratio through improving atomization characteristics. But the further effect of high charge-mass ratio on droplet atomization characteristics is comparatively weak, especially when droplet diameter is small. The droplets mass sucked back by electrode ring can be affected by droplet atomization and charged characteristics. The effect of changing droplets charge-mass ratio on droplets mass sucked back is more obvious when atomization pressure is low. With increasing atomization pressure gradually, the atomization pressure becomes the main factor that controlls droplets mass sucked back. Regulating atomization pressure is an effective method to meet the demand of droplet atomization and charged characteristics in industrial applications.