集流器结构对多翼离心风机气动性能的影响

魏铭 1; 熊仲营 1; 刘小民 1; 孙利校 2

doi:10.7652/xjtuxb201809015

您当前的位置：

首页 >

文章列表页 >

集流器结构对多翼离心风机气动性能的影响

更新时间：2025-05-01

- 集流器结构对多翼离心风机气动性能的影响
- Effects of Inlet Nozzle Structure on the Aerodynamic Performance of Multi-Blade Centrifugal Fan
- 西安交通大学学报 2018年52卷第9期页码：109-117
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2018-01-24。作者简介: 魏铭(1992—),男,硕士生;刘小民(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51676152);陕西省科学技术研究发展计划资助项目(2014K06-24)
- DOI：10.7652/xjtuxb201809015
  中图分类号： TH452
- 网络首发：2018-09-10，
  
  纸质出版：2018
- 稿件说明：
移动端阅览
魏铭 1, 熊仲营 1, 刘小民 1, 等. 集流器结构对多翼离心风机气动性能的影响[J]. 西安交通大学学报, 2018,52(9):109-117.

Effects of Inlet Nozzle Structure on the Aerodynamic Performance of Multi-Blade Centrifugal Fan[J]. 2018, 52(9): 109-117.
魏铭 1, 熊仲营 1, 刘小民 1, 等. 集流器结构对多翼离心风机气动性能的影响[J]. 西安交通大学学报, 2018,52(9):109-117. DOI： 10.7652/xjtuxb201809015.

Effects of Inlet Nozzle Structure on the Aerodynamic Performance of Multi-Blade Centrifugal Fan[J]. 2018, 52(9): 109-117. DOI： 10.7652/xjtuxb201809015.

摘要

针对多翼离心风机的集流器

采用计算流体力学(CFD)方法和实验测量方法研究了结构对吸油烟机用多翼离心风机气动性能的影响。首先

通过CFD方法对吸油烟机用多翼离心风机的原型机进行了多工况数值模拟

获得流量-压力性能曲线

并将数值模拟结果与实验测量结果进行比较

验证了本文模型的有效性。然后

通过改变集流器出口直径d

与集流器到叶轮轴向间隙δ来确定集流器最佳结构参数

达到提高风机气动性能的目的。与原型风机相比

采用经过参数优化的集流器

风机的气动性能得到提升。优化前后多翼离心风机内部流场的分析结果表明:集流器结构参数的优化

使得多翼离心风机在整个工况范围内的气动性能都得到了提升; 但是

随着集流器与叶轮之间轴向间隙的增大

风机气动性能的变化呈非线性; 当d

=206 mm、δ=6 mm时

风机的风量达到最大。实验测量结果表明:所用集流器的多翼离心风机的最大风量增加了1.0 m

/min

最大静压提升了25 Pa。数值和实验研究工作对多翼离心风机性能改进具有理论意义和实际应用价值。

Abstract

The effects of inlet nozzle structure and its parameters on the aerodynamic performance of multi-blade centrifugal fan were investigated numerically and experimentally. Numerical method was used to simulate the multi-working conditions of the fan

and the flow rate-pressure curve was obtained. By comparing the numerical simulation with the experimental results

the validity of the computational model and numerical method was testified. Then

by changing the outlet diameter of the inlet nozzle d

and the clearance δ between inlet nozzle and impeller

the optimum structural parameters of the inlet nozzle could be deter

mined to improve the aerodynamic performance of the fan. Analysis on the internal flow fields of the fan before and after optimization shows that the aerodynamic performance of the fan is improved in the whole operating range when the optimized inlet nozzle is used. However

with the increase of the axial gap between the inlet nozzle and the impeller

the change of the aerodynamic performance of the multi-blade centrifugal fan is nonlinear. When d

=206 mm and δ=6 mm

the maximum flow rate of the fan is obtained. Experimental results also show that the maximum flow rate and static pressure of the multi-blade centrifugal fan are increased by 1.0 m

/min and 25 Pa

respectively. This study may have a certain theoretical significance and practical application value for the performance improvement of multi-blade centrifugal fans.

关键词

Keywords

references

李烁, 刘小民, 秦志刚. 偏心叶轮对多翼离心风机气动性能和噪声影响的数值研究 [J]. 风机技术, 2017, 59(1): 18-24.

LI Shuo, LIU Xiaomin, QIN Zhigang. Numerical study of the effects of an eccentric impeller on the aerodynamic performance and noise of a multi-blade centrifugal fan [J]. Compressor, Blow and Fan Technology, 2017, 59(1): 18-24.

刘小民, 李烁. 仿鸮翼前缘蜗舌对多翼离心风机气动性能和噪声的影响 [J]. 西安交通大学学报, 2015, 49(1): 14-20.

LIU Xiaomin, LI Shuo. Effects of the bionic volute tongue bioinspired by the leading edge of owl wing on the aerodynamic performance and noise of multi-blade centrifugal fan [J]. Journal of Xi'an Jiaotong University, 2015, 49(1): 14-20.

陈聪聪, 耿文倩, 李景银, 等. 抽油烟机内多翼离心风机蜗壳结构的数值优化 [J]. 风机技术, 2016, 58(4): 45-51.

CHEN Congcong, GENG Wenqian, LI Jingyin, et al. Numerical optimization of the volute of a multi-blade centrifugal fan in range hood [J]. Compressor, Blow and Fan Technology, 2016, 58(4): 45-51.

QI D, MAO Y, LIU X, et al. Experimental study on the noise reduction of an industrial forward-curved blades centrifugal fan [J]. Applied Acoustics, 2009, 70(8): 1041-1050.

XU C, MAO Y. Experimental investigation of metal foam for controlling centrifugal fan noise [J]. Applied Acoustics, 2016, 104: 182-192.

KIND R J, TOBIN M G. Flow in a centrifugal fan of the squirrel cage type [J]. Journal of Turbomachinery, 1990, 112(1): 84-90.

MONTAZERIN N, DAMANGIR A, MIRZAIE H. Inlet induced flow in squirrel-cage fans [J]. Proceedings of the Institution of Mechanical Engineers: Part A Journal of Power and Energy, 2000, 214(3): 243-253.

LEE Y T. Impact of fan gap flow to the centrifugal impeller aerodynamics [J]. Journal of Fluids Engineering, 2010, 132(9): 1793-1803.

王嘉冰, 区颖达. 集流器结构对多翼离心风机性能的影响 [J]. 流体机械, 2004, 32(10): 22-26.

WANG Jiabing, OU Yingda. Effect of inlet on the performance of multi-blade centrifugal fan [J]. Fluid Machinery, 2004, 32(10): 22-26.

许文明, 郑祖义, 万忠民, 等. 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.

XU Wenming, ZHENG Zuyi, WAN Zhongmin, et al. Optimization study of bell mouth on multi-blade centrifugal fan used in floor standing air-conditioner [J]. Journal of Refrigeration, 2012, 33(3): 58-61.

赵燕杰, 谭俊飞, 党飞龙, 等. 离心风机集流器的响应面优化设计 [J]. 西安交通大学学报, 2015, 49(11): 49-54.

ZHAO Yanjie, TAN Junfei, DANG Feilong, et al. Optimization design of centrifugal fan inlet collector by response surface methodology [J]. Journal of Xi'an Jiaotong University, 2015, 49(11): 49-54.

王嘉冰, 区颖达, 吴克启. 空调风机叶道内旋涡流动分析及进气口偏心的影响 [J]. 工程热物理学报, 2005, 26(6): 951-953.

WANG Jiabing, OU Yingda, WU Keqi. Analysis on the vortices flow in the blade passages of the fan for air-conditioner and the influence of the eccentric fan inlet [J]. Journal of Engineering Thermophysics, 2005, 26(6): 951-953.

FUKUTOMI J, KUWAUCHI T, ITABASHI A, et al. A study of sirocco fan with eccentric inlet nozzle [J]. Transactions of the Japan Society of Mechanical Engineers: Part B, 1999, 65(634): 2023-2029.

周水清, 李辉, 王军, 等. 集流器偏心对前弯离心风机气动性能影响分析 [J]. 工程热物理学报, 2015, 36(7): 1466-1470.

ZHOU Shuiqing, LI Hui, WANG Jun, et al. Study on the effects inlet nozzle installation on performance of forward-curved blades centrifugal fan [J]. Journal of Engineering Thermophysics, 2015, 36(6): 1466-1470.

温选锋, 杨昕, 祁大同, 等. 椭圆形进口集流器对多翼离心风机性能影响的实验研究 [J]. 西安交通大学学报, 2011, 45(11): 45-51.

WEN Xuanfeng, YANG Xin, QI Datong, et al. Experimental study on the effect of elliptical inlet nozzle on performance of multi-blade centrifugal fan [J]. Journal of Xi'an Jiaotong University, 2011, 45(11): 45-51.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

仿鸮翼前缘蜗舌对多翼离心风机气动性能和噪声的影响

内凹式蜗舌对多翼离心风机气动性能和噪声影响的研究

液氢管路输运中静电积聚机理与电流密度分布特征研究

X射线辐照下聚酰亚胺材料空间电荷分布特性的数值模拟

异质裂隙内超临界CO2地热提取特性数值模拟研究