双股流低温缠绕管式换热器设计计算方法.docx

2014 年第 6 期 总第 202 期 低 温 工 程 CＲYOGENICS No. 6 2014 Sum No. 202 双股流低温缠绕管式换热器设计计算方法 张周卫1 薛佳幸1 汪雅红1，2 ( 1 兰州交通大学环境与市政工程学院 兰州 730070) ( 2 甘肃中远能源动力工程有限公司 兰州 730070) 摘 要: 提出一种适用于双股流逆流型缠绕管式换热器的换热工艺计算方法，应用数值模拟方法 确定双股流缠绕管束基本物理参数。按照双股流甲醇-甲醇缠绕管式换热器计算流程进行编程迭代 计算，对比分析计算数据并建立双股流低温缠绕管式换热器管束模型。研究表明: 引入数值模拟方法 可简化双股流缠绕管式换热器管束的缠绕工艺，获得双股流缠绕管式换热器结构总体设计参数并应 用于建模过程。将所建模型及相应三维物理模型应用于传热工艺计算过程，可通过编程计算并优化 双股流换热整体设计计算过程。 关键词: 缠绕管式换热器 管束数值模拟 缠绕结构 三维数值模型 中图分类号: TB657． 5 文献标识码: A 文章编号: 1000-6516( 2014) 06-0017-07 Ｒesearch on calculation and design method of cryogenic double-stream coil-wound heat exchanger Zhang Zhouwei1 Xue Jiaxing1 Wang Yahong1，2 ( 1 School of Environment and Municipal Engineering，Lanzhou Jiaotong University，Lanzhou 730070，China) ( 2 Gansu Zhongyuan Energy and Power Engineering Co． ，Ltd． ，Lanzhou 730070，China) Abstract: A calculation method for counter-current type double-stream coil-wound heat exchanger was presented for heat exchange process． The numerical simulation method was applied to determine the basic physical parameters of double-stream wound bundles． In accordance with methanol-methanol double-stream coil-wound heat exchanger to program and calculate the iterative process． Ccalculation data was analyzed by comparison and a double-stream coil-wound heat exchanger bundle model was built． Studies show that the introduction of numerical simulation method can simplify the tube bundles winding process calculations of double-stream coil-wound heat exchanger． The overall structure design parameters of the heat exchanger can be obtained and be applied to the modeling process． The corresponding three-dimensional physical model can be applied to heat transfer calculation process． It can be programmed to calculate and optimize the over- all design of the double-stream heat exchange calculation process． Key words: coil-wound heat exchanger; tube bundles numerical simulation; wind structure; three-di- mensional p