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新型喷雾轴流风机的试验和数值研究
  • ISSN号:0253-231X
  • 期刊名称:《工程热物理学报》
  • 时间:0
  • 分类:TH432.1[机械工程—机械制造及自动化]
  • 作者机构:[1]西安交通大学能源与动力工程学院流体机械研究所,陕西西安710049
  • 相关基金:国家自然科学基金资助项目(No.50776066)
中文摘要:

本文设计了两种具有新型喷雾装置的喷雾轴流风机,并按照国家标准GB1236—2000进行了喷雾风机性能试验。试验结果表明,与现有喷雾风机试验数据进行对比,两种方案中进气口处设置环形喷水管喷水的喷雾风机喷雾效果好;随着水气比的增加,风机全压效率下降率低,电机功耗增加率低,水利用率高。对该喷雾风机模型的空气相工况以及气液两相流进行数值计算,结果表明:空气相工况的数值计算结果和试验结果基本吻合;离散相模型数值计算结果与试验结果相差较大,不能有效地模拟和分析喷雾风机内的复杂流场,需开发新的计算模型。

英文摘要:

Two different spray-generating devices have been used in the spray axial-flow fan in this paper. The performance curves of the spray axial-flow fans were tested according to the national performance test standard. The experimental results showed that the characteristics of the fan with the new spray-generating device have been improved obviously, compared with those of the spray fan with the conventional spray-generating device. The new fan obviously expands the limit of the existing spray fan on the amount of added water. With the increase in the amount of sprayed water, its increase rates in total efficiency and power consumption become lower while its utilization efficiency of sprayed water becomes higher. Numerical investigations on this new fan under the air phase or the mixed air-water phase were also conducted. The results indicated that the numerical results agree well with the experimental data with the pure air phase. On the contrary, the numerical results for the mixed air-water phase using the discrete phase model in the Fluent program show an evident deviation from the experimental results. The numerical simulations underestimate the deteriorating effect of the spray fan with water added. Purther research is needed to explore the new computational model.

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期刊信息
  • 《工程热物理学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国工程热物理学会 中国科学院工程热物理研究所
  • 主编:徐建中
  • 地址:北京2706信箱
  • 邮编:100080
  • 邮箱:xb@mail.etp.ac.cn
  • 电话:010-62584937
  • 国际标准刊号:ISSN:0253-231X
  • 国内统一刊号:ISSN:11-2091/O4
  • 邮发代号:2-185
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:21026