线性套管式换热器分段传热算法研究  

Segmental Heat Transfer Calculating Methods of Linear Double-Pipe Heat Exchanger

作　　者：沈洁[1] 杨军[1] 刘彬超[1] SHEN Jie;YANG Jun;LIU Binchao(Harbin Boiler Company Limited,Harbin 150046,China)

机构地区：[1]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046

出　　处：《锅炉制造》2024年第6期46-49,共4页Boiler Manufacturing

摘　　要：线性套管式换热器可用于化工装置中工艺气的冷却。线型套管式换热设备长径比大,工艺气为多种气体混合物,在降温过程中物性参数变化幅度大,换热器的整体传热特性计算准确度不高。本文主要介绍线性套管式换热器分段传热算法,并依据实际工程进行验证,该算法的符合性较好,可为今后类似工况换热器的设计提供参考。Linear double-pipe heat exchangers can be used for process gas quenching.Owing to the large aspect ratio and significant diversification of physical parameters and a variety gas mixing of process,the heat transfer characteristics of the heat exchanger is not high.The present study focus on the segmental heat transfer algorithm of linear double-pipe heat exchanger.The calculated value of the program was proved to have high accuracy and provide a reference for the design of similar devices in the future.

关 键 词：套管式换热器 分段计算 热力计算 

分 类 号：TQ051[化学工程]