【作者】 彭德其； 支校衡； 俞秀民； 金俊杰；

【Author】 PENG Deqi, ZHI Xiaoheng, YU Xiumin , JIN Junjie (Mechanical Cleaning Institute, Hunan University of Technology, 412008; Chengzhou Vocational Technical college, 423000; ’ ZHuzhou Huahai Energy-saving Equipment Co.Ltd., 412000)

【机构】 湖南工业大学帅科机械清洗研究所； 郴州职业技术学院； 株洲华海节能设备公司；

【摘要】 含结晶性料液在工艺冷却器降温过程中,存在一个冷却面上快速结晶的问题,造成冷却器的冷却效率急剧下降,同时料液的流动阻力快速上升,造成能耗很高和被迫周期性的频繁停车。螺旋线的自转要求最低流速(约 0．4m／s)远低于工艺设计流速(1．5 m／s),能够很可靠地连续自转,清洗能力强,传热强化幅度高,阻力不高,4台工艺设备串联的总阻力0．16 MPa,只有现有工艺泵扬程32m的一半。预计工艺冷却器全部采用螺旋线技术以后, 盐矿冷却器的不仅每年节电在200万度以上,而且设备产能增大50％以上。更多还原

【Abstract】 During the process of cooling crystalline slurry in process cooler, crystal will attach on the cooling surface rapidly. This must decrease the cooling efficiency and increase flowing resistance. The energy consumption is very high and the operation is forced to stop frequently and periodically. The minimum flowing velocity in need to drive the plastic spiral to spin is 0.4 m/s in lab, which is much less than the design flowing velocity 1.5m/s. Under this condition, the plastic spiral can spin continuously and reliably. The cleaning ability is enough and heat transfer enhancement is great. The flowing resistance is not large. The overall resistance of 4 process coolers in series is just 0.16MPa, which is only the half of the delivery lift of the process pump (32m). It is estimated that the saved electricity can be over 2 million Kilowatt-hours and the off-take potential can increase by more than 50% if all the process coolers use the plastic spiral technology.更多还原