| 风机盘管离心风机的CFD降噪分析与优化 |
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| 引用本文： | 余锐生,林娟,姜灿华.风机盘管离心风机的CFD降噪分析与优化[J].噪声与振动控制,2009,38(6):222-224. |
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| 作者姓名： | 余锐生 林娟 姜灿华 |
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| 作者单位： | （ 1. 宁波甬仿应用技术有限公司，浙江 宁波 315000；2. 浙江国祥股份有限公司，浙江 绍兴 312300 ） |
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| 摘 要： | 为解决某风机盘管的离心风机在运行时噪声大的问题，本文基于CFD分析方法，对风机盘管机组空气侧进行流态分析，研究离心风机的内部流动特性，并基于分析结果重新设计风轮及蜗壳。经优化后的离心风机内部流态得到明显改善。将原始方案和优化方案进行试验验证，结果显示，新设计的离心风机在相同风量下的噪声值比原始风机下降4.7dB(A)。
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| 关 键 词： | 声学 离心风机 CFD 降噪分析 优化设计 |
| 收稿时间： | 2018-01-02 |
Analysis and Optimization of Noise Reduction for a Centrifugal Fan with a Fan-coil Unit based on CFD |
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| Abstract: | There was a high noise problem of a certain fan-coil unit when it was operating. To solve the problem, the airside flow of the unit was analyzed based on CFD analysis method. Especially the internal flow characteristics of centrifugal fan were studied. Based on the analysis results, the centrifugal fan and the volute were redesigned. The effect of internal flow of centrifugal fan was improved obviously after optimization. It is shown from the experimental results that the noise value of the redesigned centrifugal fan is reduced by 4.7dB(A) than the original fan in the same air flow rate. |
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