Gas-liquid distributor is an important internal component of fixed bed hydrogenation reactors.Performance of tubular distributors was simulated using Euler multiphase model and RNG k-ε turbulence model.Three types of tubular distributors were studied and each distributor with broken flow plate or not was compared.The results showed that the distribution performance of the distributor is improved significantly after adding the broken flow plate.However,the pressure drop of the distributor is increased.The distribution performance of the inclined pipe distributor with a broken flow plate and cross arrangement of side hole with 90° is the best.The broken flow plate greatly reduces the influence of the way the gas entering the distributor and the arrangement of overflow hole on distribution performance.%气液分配器是固定床加氢反应器的重要内构件.选用欧拉-欧拉多相流模型和RNG k-ε湍流模型对管式分配器性能进行数值模拟,对比了3种分配器加碎流板和不加碎流板时的分配性能.结果表明:增设碎流板后,分配器的分配性能显著提高,但分配器的压降增加;侧圆孔90°交叉布置加碎流板的斜口管分配器分配性能最佳;增设碎流板后,气体进入分配器的方式及溢流孔的布置方式对分配器分配性能的影响大大降低.
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