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用热线风速仪测量了常规层燃炉炉膛和带有偶极子涡流器的炉膛模型拱区的三维速度场。试验表明，偶极子涡流器在炉排上部产生的大尺度可控旋涡提高了向燃料着火区输送高温烟气能力，约比传统后拱的输送能力提高２～３倍。同时，这一大尺度可控涡所产生的离心力还能将高温烟气中携带的８０％煤粉分离下来，不但为其燃尽提供了良好的条件，而且降低了炉膛出口烟气的含尘浓度。图４参６
A three-dimensional velocity field of a conventional layer furnace hearth and a hearth model arch zone with a dipole swirler was measured with a hot wire anemometer. Experiments show that the large-scale controllable vortex generated in the upper part of the grate by the dipolar vortex enhances the ability of transporting high-temperature flue gas to the fuel ignition zone, which is about 2 to 3 times higher than that of the traditional rear arch. At the same time, the centrifugal force generated by this large-scale controllable vortex separates 80% of the pulverized coal carried in the high-temperature flue gas, which not only provides good conditions for its burnout, but also reduces the dust content of the flue gas at the exit of the furnace concentration. Figure 4 reference 6