部分穿孔直通管消声器消声性能仿真分析及整机实验研究.pdfVIP

2024

中国家电科技年会论文集

部分穿孔直通管消声器消声性能仿真分析及整机

实验研究

张磊杨春生程诗高智强

珠海格力电器股份有限公司广东珠海519070

制热传递音一直是空调开发过程中不可避免的问题，目前通用的做法是在外机管路中设置简单扩张式消音器对其进行控制。但受简单扩张式消音

摘要：

器物理规律限制，无法做到高消音量和小体积的有效统一。为解决这一矛盾，首先应用有限元法分析了相关参数对部分穿孔直通管式消音器消声性能的影

响，发现穿孔段长度、位置及穿孔率对消音性能有着显著影响。接着运用这些规律对某款空调消音器进行了优化，在消音性能不弱于或高于原消音器的前提

下，实现了消音器材料体积43.9%的减小。最后测试表明，优化部分穿孔直通管式消音器整机制热传递音静音档与原消音器相当，低风档有优势。

消音器；部分穿孔；传递损失

关键词：

Simulationanalysisandwholemachineexperimentalstudy

onthesoundattenuationperformanceofpartialperforated

straight-throughpipemufflers

ZHANGLeiYANGChunshengCHENGShiGAOZhiqiang

GreeElectricAppliances,Inc.OfZhuhaiCo.,Ltd.,Zhuhai519070

Abstract:Heattransfersoundhasbeenanunavoidableprobleminthedevelopmentofairconditioning,andthecurrentcommonpracticeistosetupa

simpleexpansionmufflerinthepipelineoftheouterunittocontrolit.However,duetothephysicallimitationsofsimpleexpansionmuffler,itisimpossible

toachievetheeffectiveunificationofhighnoisereductionandsmallvolume.Inordertosolvethiscontradiction,thefiniteelementmethodwasfirstly

appliedtoanalyzetheinfluenceofrelevantparametersonthemufflingperformanceofpartialperforatedstraight-throughpipemufflers,anditwasfound

thattheperforatedsectionlength,locationandperforationratehadasignificantinfluenceonthemufflingperformance.Theselawswerethenapplied

tooptimizeanair-conditioningmuffler,achievinga43.9%reductioninthevolumeofthemufflermaterialwithoutweakeningorexceedingtheoriginal

muffler’ssilencingperformance.Finally,theheattransfersoundtestofthewholemachineshowsthattheoptimizedpartialperforatedstraight-throughpipe

muffleri