CAJ | 학술논문

微粒捕集喷油助燃再生燃烧器的火焰稳定性和分布对陶瓷过滤体在再生过程中的安全性具有重要影响，利用旋流产生稳定回流区的机理，设计一套旋流式喷油助燃再生装置，对其流体性能进行仿真计算，得到其速度、压力以及温度等参数分布。结果表明，供给新鲜空气时在油气混合室中心部位产生流速25 m／s的回流，发动机高温废气受回流作用能对可燃混合气进行加热和促进混合，在突扩部位产生的旋转回流区能够持续将高温气体卷入燃烧室，对提高火焰稳定性具有重要意义。
미립포집분유조연재생연소기적화염은정성화분포대도자과려체재재생과정중적안전성구유중요영향，이용선유산생은정회류구적궤리，설계일투선류식분유조연재생장치，대기류체성능진행방진계산，득도기속도、압력이급온도등삼수분포。결과표명，공급신선공기시재유기혼합실중심부위산생류속25 m／s적회류，발동궤고온폐기수회류작용능대가연혼합기진행가열화촉진혼합，재돌확부위산생적선전회류구능구지속장고온기체권입연소실，대제고화염은정성구유중요의의。
The burner flame stability and distribution of fuel‐injected regeneration burner had important influence on the safety of ceramic filter regeneration process .Based on the mechanism of stable recirculation region produced by the swirling flow ,the swirling burner was designed and the velocity ,pressure and temperature of flow were acquired by the fluid simulation The re‐sults show that the 25 m/s circling flow occurs at the center of fuel and gas mixing chamber when supplying the fresh air .The high temperature exhaust gas can heat and promote the mixing of ignitable mixture by the recirculation ,and the produced cir‐cling flow in the sudden enlargement region brings the heated mixture into combustion chamber continuously and improves the flame stability .