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Effect on Collection Efficiency of Three-dimensional Concentration Distribution in ESP

机译：电除尘器中三维浓度分布对收集效率的影响

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The widely applied ESP efficiency formula of Deutsch had only taken the changing of dust concentration which following the direction of gas-flow into account, ignoring the other factors, resulting the calculated result of the Deutsch formula bigger than the actual one. In fact, the movements of dust particles in the ESP are very complex. there were three concentration grads in the dust removal area. Because of the mix and diffusion effect of the turbulence flow, the dust particles would transfer from high concentration place to the low one, and this turbulent confusion was obvious contrary to the dust collection process. In order to simplify the mathematical model, several assumptions were given regarded as the particle was collected. According to the assumptions, the three dimensional removal efficiency formula can be obtained as η=1-Kh exp(-A/Qω)Validated by experimental data in ESP test-bed, when Kh was in the range of 2-3, the calculated classification dust removal efficiencies were very closely consistent with the reality.
机译：Deutsch广泛使用的ESP效率公式仅考虑了沿气流方向的粉尘浓度变化，而忽略了其他因素，因此Deutsch公式的计算结果大于实际值。实际上，ESP中灰尘颗粒的运动非常复杂。除尘区有三个浓度等级。由于湍流的混合和扩散作用，粉尘颗粒将从高浓度的地方转移到低浓度的地方，这种湍流的混乱与集尘过程明显相反。为了简化数学模型，在收集粒子时给出了几个假设。根据这些假设，可以得到3维去除效率的公式为：η= 1-Kh exp（-A /Qω）由ESP试验台上的实验数据验证，当Kh在2-3范围内时，计算得出分类除尘效率与现实非常接近。

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