中国计量大学学报2017，Vol.28Issue(3)：287-292,6.DOI:10.3969/j.issn.2096-2835.2017.03.004
轴流通风冷却塔气动噪声研究
Study on aerodynamic noise of axial flow cooling towers
梁世概 1苏中地 1李开慧 2董家宁 1徐文祥 1杨海波3
作者信息
- 1. 中国计量大学计量测试工程学院 ,浙江杭州310018
- 2. 香港大学浙江科学技术研究院 ,浙江杭州311300
- 3. 上海工程技术大学汽车工程学院 ,上海201620
- 折叠
摘要
Abstract
The large mechanical draft counter flow wet cooling tower has been generally chosen for the refrigeration system of power plants .According to field situation ,there is a concrete cross beam under the axial flow fan of a cooling tower .This bluff body will produce a series of periodic wakes after the passage of the fluid ,which will increase inflow nonuniformity and turbulence of the fan and increase the aerodynamic noise of the fan .For the research work ,firstly ,the same experimental model with the actual power plant cooling tower was designed .Secondly ,different kinds of cross beam were selected to study the influence of the aerodynamic noise of the fan .It was verified that the leading cross beam structure could reduce the turbulence intensity and made airflow more uniform . Finally , the damping nets were selected and installed . The aerodynamic noise of the cooling tower was effectively reduced by the rectifying action of the damping nets . The results provide theoretical and experimental support to reduce the influence of the aerodynamic noise .关键词
冷却塔/横梁/阻尼网Key words
cooling tower/cross beam/damping net分类
通用工业技术引用本文复制引用
梁世概,苏中地,李开慧,董家宁,徐文祥,杨海波..轴流通风冷却塔气动噪声研究[J].中国计量大学学报,2017,28(3):287-292,6.
