制冷学报2012，Vol.33Issue(3)：58-61,4.DOI:10.3969/j.issn.0253-4339.2012.03.058
空调柜机多翼离心风机集流器的优化研究
Optimization Study of Bell Mouth on Multi-blade Centrifugal Fan used in Floor Standing Air-conditioner
摘要
Abstract
Numerical study of three-dimensional flow field was carried out for the duct system of the floor standing air-conditioner. Comparative study on three types of structure of bell mouth used in the multi-blade centrifugal fan was implemented. Calculation results show that, both the first type of bell mouths with the inward inlet whose axial height is larger than the existing type and the second type of bell mouth with new mold line inward inlet and smaller slope angle than the existing type can improve airflow utilization ratio and reduce the vortex in the back of volute exit compared to the existing type, and the air volume is increased by 6.8% and 4.2% respectively. The experiment was carried out to validate the result of simulation and the experimental results show that the air volume can increase by 4.7% and 3% respectively while the level of noise is invariant.关键词
热工学/数值模拟/空调/集流器/多翼离心风机Key words
Pyrology/ Numerical simulation/ Air-conditioner/ Bell mouth/ Multi- multi-blade centrifugal分类
信息技术与安全科学引用本文复制引用
许文明,郑祖义,万忠民,金听祥,陈焕新..空调柜机多翼离心风机集流器的优化研究[J].制冷学报,2012,33(3):58-61,4.基金项目
本文受2010广东省技术创新项目(20101022020)资助. （20101022020）
