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工业炉中的传热机理分辐射传热和对流传热两种。在钢铁行业的均热炉、加热炉等高温炉中,辐射传热量约占全部传热量的90％左右。因此,作为节能燃烧技术,研究钢铁工业炉中的火焰辐射特性并使之最佳化,这对改善均热和加热性能是有效的。一、火焰辐射特性 1.火焰辐射火焰辐射的种类大致分为无火焰气体辐射和火焰辐射。无火焰气体辐射已进行了很多试验和理论上的研究,基本上弄清楚了,在工业上也得到广泛应用。火焰辐射是从高温燃烧气体中析出而悬浮的碳等固体微粒群产生的热辐射。由于火
The heat transfer mechanism in industrial furnaces is divided into two types: radiation heat transfer and convection heat transfer. In the steel industry soaking furnace, furnace and other high temperature furnace, the radiation heat transfer accounts for about 90% of the total heat transfer. Therefore, studying the flame radiation characteristics in an iron and steel industry furnace as an energy-saving combustion technique and optimizing it is effective for improving soaking and heating properties. First, the flame radiation characteristics 1. Flame radiation Flame radiation types are broadly divided into non-flame gas radiation and flame radiation. No flame gas radiation has been a lot of experimental and theoretical studies, basically clear, in the industry has also been widely used. Flame radiation is the heat radiation generated by solid particles such as carbon suspended from high-temperature combustion gases. Due to fire