CAJ | 학술논문

根据某反应的特定工艺过程要求,提出了一种适合宽黏度域的高效轴流式搅拌桨--SP304型轴流式搅拌桨,该桨叶片呈空间扭转状,且具有曲率,可减少流体阻力,提高排出性能.并设计了一套实验装置对这种高效轴流桨在非牛顿流体中的功率特性进行研究,得到了功率常数K_p、Metzner常数k_s和功率特性曲线,为工业化装置的设计提供实验数据.通过观察实验中不同浓度、不同转速下的流体流动细节,可以获得整个流动场的概念,对搅拌桨离低高度、桨间距等参数设计具有重要的指导意义.根据实验结果对此高效轴流搅拌桨成功地进行了工业应用.
근거모반응적특정공예과정요구,제출료일충괄합관점도역적고효축류식교반장--SP304형축류식교반장,해장협편정공간뉴전상,차구유곡솔,가감소류체조력,제고배출성능.병설계료일투실험장치대저충고효축류장재비우돈류체중적공솔특성진행연구,득도료공솔상수K_p、Metzner상수k_s화공솔특성곡선,위공업화장치적설계제공실험수거.통과관찰실험중불동농도、불동전속하적류체류동세절,가이획득정개류동장적개념,대교반장리저고도、장간거등삼수설계구유중요적지도의의.근거실험결과대차고효축류교반장성공지진행료공업응용.
According to the special requirements of reaction process,a new type of an efficient axial impeller(SP304) suitable for wide viscosity range is presented with its spatially torsional structure and curvature of the mix blade which can reduce the fluid resistance and improve discharge performance.In order to obtain power constant K_p,Metzner constant k_s and power characteristics curve for industrial unit design,an experimerltal setup for investigated power characteristics of SP304 agitator is designed in the case of non-Newtonian fluids.The concept of flow field are obtained by observing the detail of flow under different concentration and different rotation speeds,has an important gujdance parameter design for low impeller off bottom clearance height and distance between impellers.According to experimental results,SP304 agitator successfully is applied in the commercialized unit.