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概述锅炉的过热器和省煤器非沸腾段都属于单相流体在并联管组中强制流动的情况。若管组中并联各根管子的吸热和流量分配不均匀,便会产生热偏差。当热偏差超过许可值时,就会烧坏管子。这类事故在过热器中出现得最多。因此这个问题在锅炉设计中,特别是在过热器设汁中具有相当重要的实际意义。不仅如此,单相流体在并联管组中和多孔管中的流量分配
Overview Boiler superheater and economizer non-boiling sections belong to the single-phase fluid forced flow in the parallel pipe group situation. If the tube group in parallel with each tube endothermic and flow distribution is not uniform, it will produce thermal deviation. When the thermal deviation exceeds the allowable value, it will burn the tube. Such accidents occur most frequently in superheaters. Therefore, this issue has very important practical significance in boiler design, especially in superheater design. Not only that, the flow distribution of single-phase fluids in parallel tubes and in porous tubes