摘要
以菠萝汁试验为介质,重点研究酒窝状波纹竖板降膜蒸发器的传热性能,并分析单位板宽上流量I,蒸发温度TV,传热温差ΔT,糖度BX对蒸发器总传热系数K的影响,分别得出总传热系K与I,TV,ΔT,BX回归曲线。试验结果表明:酒窝状波纹竖板降膜蒸发器具有传热系数高、蒸发强度大、不易结垢,尤其适合于热敏性物料的浓缩等优点,能够较好地完成对菠萝汁的浓缩。
The heat-transfer property was researched of dimpled vertical plate falling film evaporator during evaporating pineapple Juice. Analyzing the effect of flowing rate I, evaporating temperatureTv, heat-transfer difference in temperature A T, concentration on overall heat-transfer coefficient K, the curve of overall heat-transfer coeffi- cient K and I, Tv ,△T, Bx were obtained separately. The experimental results show that the dimpled vertical plate falling film evaporator owns high heat-transfer coefficient and great evaporating intensity, uneasy to produce foul, Especially suit to concentrate heat-sensitive liquid, easily accomplish the evaporation of pineapple juice, the experimental relating formula had great help on the fruit juice industry.
出处
《食品与机械》
CSCD
北大核心
2010年第1期104-106,共3页
Food and Machinery
关键词
菠萝汁
酒窝状波纹竖板
降膜蒸发器
传热
Pineapple juice
Dimpled vertical plate
Falling film evapo rator
Heat-transfer
