关键词: 反应釜, 热管, 数值模拟, 最优温度, 混合

Abstract: This research applied the heat pipe technology in the highly exothermic agitated reactor and replaced the rectangle baffles were with elliptical heat pipes. A new structural heat pipe agitated vessel was designed based on the amide reaction in the production of the saccharin sodium. Using Fluent module in ANSYS the User Defined Function（UDF） was obtained to express the actual heat dissipation of the reacted liquids. Numerical simulation analyzed three structure parameters and the rotor speed comprehensively，in order to evaluate the effects of these factors on the optimal temperature duration time，mixing uniformity time and other performance parameters. The results showed that the rotor speed had considerably great impacts on the performance parameters of the stirred tank. The installing angle of the stirrer had the greatest impacts on the optimal temperature duration time； the distance between the lower blade and the reactor bottom had greatest impacts on the mixing uniformity time. The impacts of each factor on the stirrer performances were also analyzed through the numerical simulation. The optimal conditions were：135mm for the distance between the heat pipe center line and the reactor wall，340mm for the distance between the lower blade and the reactor bottom，0° for the installing angle of the stirrer, and 240r/min for the rotor speed.

Key words: reactor, heat pipes, numerical simulation, optimal temperature, mixing