高低温环境试验箱循环风机优化设计  

Optimization of Blower in Environmental Test Chamber

作　　者：吴昊 龙铁明 蓝文清 WU Hao;Long Tie-ming;LAN Wen-qing(School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710000;GD MO Technologies Co.,Ltd.,Dongguan 523000)

机构地区：[1]西安交通大学能源与动力工程学院,西安710000 [2]广东玛澳环境试验设备科技有限公司,东莞523000

出　　处：《环境技术》2022年第6期184-190,共7页Environmental Technology

基　　金：广东玛澳环试设备科技有限公司的研发课题《超低负载环境试验箱先进传热学优化设计》的资助。

摘　　要：循环风机对环境试验箱温度均匀性及制冷系统效率的影响十分显著,但目前行业内对循环风机的设计选型缺乏针对性研究。本文基于CFD仿真,针对1000L高低温试验箱中所使用的多翼离心风机的蜗壳及叶轮进行优化设计。在-70℃工况时,对搭配不同翅片类型时风机工况点的确定进行了讨论,结果显示,优化风机较原始风机最大风量提升18.57%以上,效率提升6.29%以上。所得结论为环境试验箱循环风机设计及风量匹配等问题的解决提供了参考。Blowers in environmental test chambers have a great influence on the temperature uniformity and the efficiency of refrigeration system. In this paper, based on CFD simulations, the squirrel cage blower used in the volume of 1 000 L test chamber were optimized, to increase the maximum mass flow and efficiency. The effects of blowers on temperature uniformity and different fin forms of evaporator were compared. The conclusions obtained provide a reference for the selection and design of blower in environmental test chamber.

关 键 词：高低温环境试验箱 多翼离心风机优 制冷系统仿真 

分 类 号：TH43[机械工程—机械制造及自动化]