华电电力科学研究院有限公司, 浙江省 杭州市 310030
[ "彭丽(1988), 女, 博士, 工程师, 从事多相流分离技术研究及应用工作, pengxy0412@foxmail.com" ]
[ "石战胜(1982), 男, 博士, 高级工程师, 从事多相流分离技术研究及应用工作, zhansheng-shi@chder.com" ]
[ "董方(1987), 女, 硕士, 工程师, 从事多相流分离技术研究及应用工作, fang-dong@chder.com" ]
收稿:2020-06-18,
纸质出版:2021-06-30
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彭丽, 石战胜, 董方. 基于CFD-DPM的旋风分离器结构优化[J]. 发电技术, 2021,42(3):343-349.
Li PENG, Zhansheng SHI, Fang DONG. Structure Optimization of Cyclone Separator Based on CFD-DPM[J]. Power Generation Technology, 2021, 42(3): 343-349.
彭丽, 石战胜, 董方. 基于CFD-DPM的旋风分离器结构优化[J]. 发电技术, 2021,42(3):343-349. DOI: 10.12096/j.2096-4528.pgt.20043.
Li PENG, Zhansheng SHI, Fang DONG. Structure Optimization of Cyclone Separator Based on CFD-DPM[J]. Power Generation Technology, 2021, 42(3): 343-349. DOI: 10.12096/j.2096-4528.pgt.20043.
采用CFD-DPM方法,结合响应曲面模型对旋风分离器结构参数进行优化。研究发现:对压降和分离效率影响最大的结构参数为排气
管直径
D
x
/
D
,其次是入口高度
a
/
D
、入口宽度
b
/
D
、旋风分离器长度
H
/
D
、排气管插入深度
S
/
D
。通过分析各结构参数的交互作用发现:入口宽度与入口高度,入口尺寸与排气管直径对压降的影响存在较强的交互作用;排气管直径与入口高度、排气管插入深度及旋风分离器长度对分离效率的影响存在较强的交互作用。最后,基于CFD-DPM模拟计算结果获得该旋风分离器在最小压降和最大效率下对应的几何结构参数,即在
a
/
D
、
b
/
D
、
D
x
/
D
、
H
/
D
、
S
/
D
取值分别为0.40、0.26、0.34、6.28、0.66时,压降为2.32kPa,分离效率为99.27%。
The CFD-DPM (computational fluid dynamics-discrete particle model) and the response surface methodology has been performed to optimize the geometrical ratios of cyclone separator. The research results illustrate that the most significant geometrical parameter is the vortex finder diameter. Other four factors have significant effects on the cyclone performance viz.
the inlet width
inlet height
the cyclone total height
and the vortex finder length. In addition
there were strong interactions between the effect of the inlet width and inlet height
inlet dimensions and the vortex finder diameter on the pressure drop. There were strong interactions between the effect of the vortex finder diameter and inlet height
the vortex finder length and the cyclone total height on the separation efficiency. Finally
a new set of geometrical ratios was obtained to achieve minimum pressure drop and maximum separation efficiency. When the value of
a
/
D
b
/
D
D
x
/
D
H
/
D
S
/
D
was 0.40
0.26
0.34
6.28
0.66
respectively
the minimum pressure drop was 2.32kPa and the maximum separation efficiency was
99.27%.
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