A computational fluid dynamics(CFD)study was performed by Blasch Precision Ceramics on a theoretical reforming furnace(Figs 1 and 2)to determine the comparative results of flow uniformity in flue gas tunnels with and without a standing tunnel in the outer position.The furnace modelled is 13 x 16 x 16 m(height x width x length).Along the floor of the furnace run eight flue gas tunnels, 16 m in length and 1.8 m height with a 66 cm internal tunnel width.96 flue gas burners are modelled to provide heat to 336 catalyst tubes.Two furnace models were compared, one running a full set of eight tunnels, and another without the outer tunnel but with the other seven tunnels.This is intended to replicate a situation where a tunnel has collapsed during a campaign, and at a maintenance outage the debris was removed but a new tunnel was not constructed, likely with the plan to rebuild the tunnel during a future turnaround with more time available for construction.
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机译：通过在理论重整炉（图1和2）上的冰水精密陶瓷（图1和2）进行计算流体动力学（CFD）研究，以确定烟道气隧道中流动均匀性的比较结果，在外位置中没有站立隧道。炉子 建模为13 x 16 x 16 m（高度x宽度x长度）。炉子的地板运行八个烟气隧道，长度为16米，高度为1.8米，内部隧道宽度为66厘米.96烟气燃烧器被建模 为了向336催化剂提供热量。比较了炉型型号，一个运行全套八个隧道，另一组没有外部隧道，而是用其他七个隧道。这旨在复制隧道在隧道倒塌的情况下 活动，在维护中断的情况下，碎片被删除，但在未来的周转过程中，可能会建造一个新的隧道，可能会在未来的周转过程中重建隧道，并提供更多可供施工的时间。
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