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作 者:黄天梁 Huang Tianliang(Fujian Longfu New Material Co.,Ltd.,Fujian,364204)
出 处:《当代化工研究》2023年第13期162-164,共3页Modern Chemical Research
摘 要:传统的氟化氢精馏塔塔釜加热装置为以水蒸汽作热源的盘管式加热器,存在换热效率低和热源与精馏物温差过大的问题。为提升精馏效率,规避因温差过大带来的设备穿孔风险,设计开发以60℃水作热源的列管式加热器。在单因素试验的基础上,以换热效率为响应值,通过响应面法对列管式加热器的结构进行优化。结果表明,最优装置结构为:折流板数量8块、热水缓存区宽度240mm、换热管翅化比5.9。经试验验证,新研制的列管式加热器可以满足氟化氢精馏塔的供热需求,换热效率达97%以上。The traditional heating device for hydrogen fluoride distillation tower kettle is a coil heater using water vapor as the heat source,which has problems of low heat exchange efficiency and excessive temperature difference between the heat source and the distillate.In order to improve distillation efficiency and avoid the risk of equipment perforation caused by excessive temperature difference,a calandria heater using 60℃water as a heat source was designed and developed.Based on single factor experiments,the structure of calandria heaters was optimized using response surface method with heat transfer efficiency as the response value.The results show that the optimal device structure is as follows:the number of baffles is 8,the width of the hot water buffer zone is 240 mm,and the fin to fin ratio of the heat exchange tube is 5.9.The experimental verification shows that the newly developed calandria heater can meet the heating demand of the hydrogen fluoride distillation tower,with a heat exchange efficiency of over 97%.
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