湖南大学学报（自然科学版）2011，Vol.38Issue(6)：43-48,6.
DPF喷油助燃装置工作参数对再生过程的影响
Study of the Impact of the Working Parameters of a Burner-type DPF on Regeneration
摘要
Abstract
Taking a burner-type diesel paniculate filter (DPF) as an example and based on the pyroge-nation regeneration model, the variety laws of the exhaust back-pressure, particulate layer thickness and wall maximum temperature, etc. During the burner-type DPF regeneration were studied and analyzed under different working parameters, such as oil-spray pressure, spray rate and air-supply flux. The results indicate that the working parameters could influence the regeneration evidently. With the improvement of the oil-spray pressure* the wall maximum temperature increased markedly, and the regeneration rate was quickened. The burner power became stronger with the increase of oil -spray rate, and the amplitude of the wall maximum temperature was greater. But for the safe endurable temperature of DPF, the oil-spray rate must be controlled. When the oil-spray rate reached a certain extent, the oxygen content in the exhaust was deficient, the combustion efficiency decreased, and the soot oxidation velocity and regeneration rate slowed down. It increased the oxygen content by air supply and the regeneration process quickened. But with more air-supply quantity, the regeneration may slow down because of the enhancement of convection transfer heat loss.关键词
柴油机/喷油助燃再生微粒捕集器/工作参数/再生Key words
diesel engine/ burner-type DPF/ working parameter/ regeneration分类
能源科技引用本文复制引用
伏军,龚金科,吴钢,龙罡,余明果,刘湘玲..DPF喷油助燃装置工作参数对再生过程的影响[J].湖南大学学报（自然科学版）,2011,38(6):43-48,6.基金项目
国家自然科学基金资助项目(50876027) （50876027）
湖南省教育厅资助项目(08C797) （08C797）
湖南大学汽车车身先进设计制造国家重点实验室自主课题资助项目(61075002) （61075002）
