连续流搅拌强化管式反应器的换热性能实验与数值模拟

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中图分类号：TQ051.5 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.04.003

Abstract：Continuous flow reactors are widely used innitration reactions due to their eficientand flexible operating characteristics.The research on their heat transfer performance is of great significance for optimizing the reaction process，improving production eficiency and ensuring safety.In order to study the heat transfer characteristics of thecontinuous stirred tubular reactor with jacket coling，this paper used the wallmethod to measure the convective heat transfer coeficient of the reactor，and utilized the numerical simulation method combined with relevant Computational Fluid Dynamics（CFD）software toconducta detailed studyon therelationshipbetween the turbulent characteristicsandheat transferof thereactor.Inadition，acomparative analysis with the traditional Wilson plot method was also caried out. The results show that the wall method can measure the convective heat transfer coefficients of the reactor and the jacket quite well，and the used CFD model can also effctively simulatethe heat transfer process when the reactor is inadynamically stable state.The maximum temperature error between the simulation and the experimental monitoring points is 3.71% . The error between the convective heat transfer coeffcient on the innersideof the tubularreactor measured bythewall methodandthat obtained from theCFDsimulationresults is （2号 4.53% ，which proves the accuracy of the wall method.However，the error between the convective heat transfer coefficient of the jacket measured by the Wilson plot method and the simulation result is 32.07% .The research conclusions provideareferencefortheoptimization design of the heat transfer performance of the tubular reactor under the continuous flow steady-state working condition.

Key words：continuous flow； tubular reactor； stirring； heat transfer coefficient; numerical simulation

1前言

传统的硝化工艺普遍采用间歇操作的釜式反应器，其反应过程通过向反应釜内部滴加混酸实现。（剩余14531字）