基于Flotherm的电脑针织横机主变频器热设计及优化分析  

Thermal design and optimization analysis of the main frequency converter in computerized flat knitting machines based on flotherm

作　　者：李望骏 吴晓 戴伟 夏浩宇 李良玉 董修心 LI Wangjun;WU Xiao;DAI Wei;XIA Haoyu;LI Liangyu;DONG Xiuxing(School of Mechanical Engineering and Automation,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]武汉纺织大学机械工程与自动化学院,武汉430200

出　　处：《纺织工程学报》2024年第4期69-78,共10页JOURNAL OF ADVANCED TEXTILE ENGINEERING

基　　金：湖北省数字化纺织装备重点实验室开放课题项目(KDTL2023006)。

摘　　要：针对纺织车间干燥多尘易燃的环境,本文使用Flotherm软件对电脑针织横机主变频器的散热器进行温度仿真与优化设计。基于热损耗基本理论,建立了变频器的热仿真模型,模拟了主变频器散热器内部流场及温度场分布情况,对散热器结构参数和强迫风冷形式进行了优化。研究表明:散热器翅片形状及翅片间距对其散热效果影响较大,间距为10 mm的三角形翅片散热器最佳,优化后,变频器平均温度为64.77℃,同比下降32.69%;进一步的,单个大尺寸的散热风扇散热效果更好,经过散热,变频器平均温度为34.69℃,在设备安全工作温度范围内。本研究为实际生产中纺织设备散热器结构及散热风扇的选择和优化提供了理论参考。In view of the dry,dusty and flammable environment of the textile workshop,Flotherm software was used to simulate and optimize the temperature of the radiator of the main inverter of the computerized flat knitting machines.Based on the basic theory of heat loss,the thermal simulation model of the inverter was established,the internal flow field and temperature field distribution of the main inverter radiator were simulated,and the structural parameters and forced air cooling form of the radiator were optimized.The results show that the shape and fin spacing of the radiator have a great influence on its heat dissipation effect,and the triangular fin radiator with a spacing of 10 mm is the best.After optimization,the average temperature of the inverter is 64.77°C,a year-on-year decrease of 32.69%,and furthermore,the heat dissipation effect of a single large-size cooling fan is the best,and the average temperature of the inverter is 34.69°C,which is within the safe working temperature range of the equipment.This study provides a theoretical reference for the selection and optimization of radiator structure and cooling fan of textile equipment in actual production.

关 键 词：电脑针织横机 变频器 FLOTHERM 散热分析 结构优化 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]