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本文以二氧化硫气体换热器为例,分析研究了弓形隔板管壳式气体换热器在管内与管隙间由于流体能量损耗分配的不合理性而对换热器传热性能所造成的不利影响,并提出了以换热器壳程气体纵向冲刷为结构特征的双面整体形低翅片管换热器的传热优化设计方法,使得换热器的总传热系数在管内与管隙间气体总压降不变,气体流量不变以及传热温差不变的条件下,比原弓形隔板管壳式气体换热器的总传热系数提高80%。总传热面积减少42%。
Taking the sulfur dioxide gas heat exchanger as an example, this paper analyzes the disadvantage of the heat transfer performance of the heat exchanger due to the irrational distribution of fluid energy loss between the tube and the tube gap of the tube-shaped gas tube heat exchanger And proposed a heat transfer optimization design method of double-sided monolithic low-fin tube heat exchanger with longitudinal scouring of the shell-side gas of the heat exchanger as a structural feature, so that the total heat transfer coefficient of the heat exchanger is in the range of The total pressure drop between the gas unchanged, the same gas flow and heat transfer temperature constant conditions, than the original bow-shaped partition shell and tube gas heat exchanger total heat transfer coefficient increased by 80%. Total heat transfer area reduced by 42%.