气雾冷却系统中气封装置的几个基本参数设计

Some parameters design for the air-seal device in an air-spray cooling system

为了阻挡冷却过程中钢板上表面形成的薄水层的纵向流动,每组气雾冷却装置前后都布置一排气封装置,迫使水流由钢板两侧流走,以保证得到平直的钢板板形.通过对气封装置中体积流量、喷嘴宽度、出口速度、喷嘴到钢板表面的距离、单个喷嘴阻挡水流的速度等几个参数的研究,选择了合理的数值,降低了生产成本,得到了最佳挡水效果.

In order to hold up the thin water film formed by cooling process on the surface of a steel plate, an air-seal device is build up at the every row of the air-spray device, which leads the thin water film to flow away from the edge of the plate and gets the flat plate. Some parameters such as volume flux, nozzle width, outlet velocity, the height between nozzle and plate, and single nozzle hold-up water velocity were studied. The reasonable values were chosen, the cost was reduced, and the optimized which help to choose reasonable values, reduce the cost, and then get the optimum hold-up water effect was obtained.