换热器水垢旋液流态化清洗技术的试验研究  

Experiment research on spiral rluidized automatic cleaning technology for heat exchangers' fouling problem

作　　者：冯修燕[1,2] 俞天翔[2] 彭德其[1] 张治坤[2] 

机构地区：[1]湘潭大学,湖南湘潭411105 [2]湖南化工职业技术学院,湖南株洲412000

出　　处：《清洗世界》2013年第5期21-24,共4页Cleaning World

摘　　要：本文针对换热器管内硬的水垢,研究了旋液流态化自动清洗技术。介绍了这种新技术的基本结构和力学原理,叙述了旋液流态化自动清洗试验研究的装置设计,人工预制污垢的组分和有关参数的测量方法,对旋液流态化的流速要求、流态化粒子的管内壁富集、自动清洗能力和均匀性、流体阻力等基本问题分别进行了试验研究。获得的试验结果与技术原理的理论分析预期比较一致:水平换热管内实现旋液流态化的流速只有传统流态化流速要求的1/4;流态化粒子在换热管内壁有倍数的富集作用;对管内人工预制的硬的水垢的清洗能力强、而且均匀性比较好;流体阻力增加不太大,在流速为0.8 m/s时每米换热管的阻力为121 Pa。To deal with the hard-scale problem in general heat exchanger tubes,a vibrating-spiral fluidized automatic cleaning technology was studied and developed.This paper explained the technology's basic structure and its mechanism.It also stated the design of this vibrating-spiral fluidized automatic cleaning technology experimental device,man-made sale compositions and the measurement methods of the related parameters.Experiments were carried out on certain important issues such as spiral fluidization flow velocity requirements,the enrichment of fluidization particles towards the tube inside wall,automatic cleaning ability and its uniformity,and the flow resistance.The experiment results are consistent with the expectance based on the theoretical analysis.For horizontal heat exchange tubes,the flow speed needed to form spiral fluidization is only one fourth of that required by traditional fluidization.The enrichment degree of fluidization particles is multiple times of the concentrationin flow.the automatic cleaning ability of hard scale is strong and uniform.The flow resistance incensement is acceptable,121Pa/m at 0.8m/s flow speed.

关 键 词：换热器 水垢 流态化 清洗 

分 类 号：TQ051.5[化学工程]