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浮头式废热锅炉工艺气侧的传热过程属于辐射状扩缩流横向冲刷管束的强迫对流换热，这种对流换热既不同于定截面流的横向冲刷管束的换热，又不同于一般的变截面流的横向冲刷管束的换热，文中用大比例尺（Ｍ１：２）模型测定了该换热过程的对流放热系数与雷诺数间的关孔试验结果表明这种流动方式强化了对流换热过程，辐射状扩压流的放热系数比平行流横向冲刷错列管束的放热系数增加１６％，而辐射状收缩流横向冲刷管束的放热系数比平行流横向冲刷错列管束的放热系数则增加４０％左右。
The heat transfer process on the gas-gas side of the floating head-type waste heat boiler belongs to the forced convection heat transfer of radial scouring flow lateral scouring tube bundle. The convective heat transfer is different from the heat transfer of lateral scouring tube bundles of constant cross- In this paper, the large-scale (M1: 2) model was used to determine the heat transfer between the convective heat transfer coefficient and the Reynolds number of the cross-section flow test results show that this flow mode to strengthen the convection In the thermal process, the exothermic coefficient of radial diffuser flow increased by 16% compared with that of parallel staggered flow scour bundle, while that of horizontal scouring tube bundles of radial shrinkage flow scour the staggered tube bundles horizontally The thermal coefficient is increased by about 40%.