单一金属高螺纹翅片管换热器的探索与实践-空压机.PDF

单一金属高螺纹翅片管换热器的探索与实践 王家明 , 王正全 (杭州杭氧透平机械有限公司 , 浙江省杭州市东新路 388 号 　310004) 　　摘要 : 通过对管壳式换热器几种常见翅片管的结构特点、换热性能和制造经济性进行分析比 较和研究 , 研制出传热效率更高、结构更紧凑、制造成本更低廉的新型换热元件 ———单一金属轧 制的高螺纹翅片管 ; 提出了传热学意义上最佳翅片截面轮廓线的通用解析式。通过生产实践与不 断改进 , 形成了一组高螺纹翅片管系列产品 , 并成功地应用于为透平压缩机配套的大中型管壳式 换热器。 关键词 : 透平压缩机 ; 管壳式换热器 ; 高螺纹翅片管 中图分类号: TH452 　　　文献标识码 : A Exploration and practice of singlemetal highscre wthread finnedtube heat exchanger Wang Jiaming , Wang Zhengquan ( Hangzhou Hangyang Turbine Machinery Co, Ltd , 388 Dongxin Road , Hangzhou 310004 , Zhejiang , ) PR China Abstract : Based on analysis and research of structural characteristics , heat transfer performance and manufacture economics of diverse conventional finned tubes for tube and shell heat exchanger , a highscrewthread finned tube heat exchanger , rolled with one single metal , has been successfully developed. The heat exchanger occupies higher heat transfer efficiency , more compact configuration and lower manufacture cost than conventional ones. A universal analytical expression for optimal fin section outline was proposed in terms of heat transfer. After production practices and repeated modifications , a series of highscrewfinned tube products were fabricated and successfully applied in large and medium scale tube and shell heat exchangers for turboexpanders. Keywords : Turboexpander ; Tube and shell heat exchanger ; Highscrewthread finned tube 　　换热器是一种既成熟又不断有创新的机械产 热器的尺寸、降低生产成本成了工程界面临的重要 品 , 在各种热力机械、石油化工机械中广泛应用。 课题。 换热元件的生产需消耗大量的贵重金属 , 在机械产 1 　几种常见翅片管的特点 品中占有十分重要的地位。自第一次工业革命以 由于气、液之间热物理性能的巨大差异,