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燃烧重油和气体的多风道平流式燃烧器在国内外火电站中已广泛使用[文献1、2、3]。同旋流式燃烧器相比,平流式燃烧器的流动阻力系数较低,即在相同的压头下有较高的空气出口速度。目前对锅炉调节范围的要求不断提高,故上述情况具有特殊的意义。燃烧器出口空气速度高(60～70米/秒),锅炉低负荷时不必切除燃烧器,这对于重油的低过量空气燃烧特别重要,因为切除燃烧器,进入炉膛的空气就组织不好。作者的测
Multi-channel stomatal burners that burn heavy oil and gas have been widely used in domestic and overseas thermal power plants [1, 2, 3]. Stratospheric burners have lower flow resistance coefficients than cyclones, ie, higher air outlet velocities at the same head. The current requirements for regulating the range of boilers continue to increase, so the above situation is of special significance. Burner exit air velocity is high (60-70 m / s) and it is not necessary to remove the burners when the boiler is under a low load. This is especially important for the low excess air combustion of heavy oil because the air entering the furnace is poorly organized when the burners are removed. The author’s test