Article(id=1320037996926185978, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037798686605953, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2026.06.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1763654400000, receivedDateStr=2025-11-21, revisedDate=1781452800000, revisedDateStr=2026-06-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1792651183586, onlineDateStr=2026-10-22, pubDate=1782748800000, pubDateStr=2026-06-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792651183586, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792651183586, creator=13701087609, updateTime=1792651183586, updator=13701087609, issue=Issue{id=1320037798686605953, tenantId=1146029695717560320, journalId=1316781260334530699, year='2026', volume='54', issue='6', pageStart='1', pageEnd='122', issueExtLink='null', onlineDate='null', pubDate='1782748800000', pubDateStr='2026-06-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792651136322, creator='13701087609', updateTime=1792656254917, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320059267693003413, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037798686605953, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320059267693003414, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037798686605953, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=104, endPage=111, ext={EN=ArticleExt(id=1320037997085569531, articleId=1320037996926185978, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Analysis and noise reduction design of high‑frequency noise in electronic expansion valves for multi‑split indoor units in heating mode, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To address the issue of abnormal noise at 5 200 Hz occurring in variable refrigerant flow (VRF) indoor units under heating operation,a dedicated test bench for the electronic expansion valve (EEV) was constructed to identify the excitation conditions responsible for this high‑frequency noise.Large eddy simulation (LES),coupled with the Schnerr‑Sauer cavitation model,was employed to compute the temporal evolution of the vapor volume fraction inside the EEV and the corresponding pressure fluctuation spectrum.Additionally,the acoustic finite element method was applied to determine the acoustic cavity modes within the valve chamber.The results indicate that after the refrigerant passes through the throttling region of the EEV,pronounced localized vortices are generated.The pressure at the vortex core drops below the local saturation vapor pressure,triggering localized flash cavitation.The pressure fluctuation frequency induced by cavitation couples with the acoustic cavity mode of the valve chamber at 5 237 Hz,thereby amplifying pressure pulsations near that frequency and radiating audible noise.To mitigate this issue,a chamfered flow‑guiding design on the valve seat and the addition of a buffer chamber were implemented.These modifications effectively suppress cavitation and eliminate the high‑frequency noise during heating operation.
, authors=Minglong DU, Kun LIU, Yuze GAO, authorsList=Minglong DU, Kun LIU, Yuze GAO, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1320037999069475346, articleId=1320037996926185978, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=多联式室内机电子膨胀阀制热高频噪声分析与降噪设计, columnId=1317484300472271469, journalTitle=流体机械, columnName=应用技术, runingTitle=null, highlight=null, articleAbstract=
针对多联式室内机制热工况5 200 Hz的异常噪声问题,搭建电子膨胀阀单体测试装置,明确电子膨胀阀高频噪声的发声条件。采用大涡模拟与Schnerr-Sauer空化模型,计算电子膨胀阀内部蒸汽体积分数时间变化历程与压力脉动频谱;应用声学有限元法计算电子膨胀阀内部空腔模态。结果表明,冷媒流经电子膨胀阀节流区域后,局部产生明显涡流,涡流中心区域的局部低压小于当地饱和蒸汽压力,发生局部闪蒸空化;空化产生的压力脉动频率与阀腔5 237 Hz的声腔模态耦合,放大该频率附近的压力脉动并辐射噪声。阀座采用倒角导流设计与增加缓冲腔的方案,有效地抑制了空化现象,消除了制热高频噪声。
, authors=杜明龙, 刘坤, 高玉泽, authorsList=杜明龙, 刘坤, 高玉泽, authorCompany=null, correspAuthors=null, authorNote=
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作者向本刊所投稿件一经本刊录用,则该论文的复制权、发行权、信息网络传播权、翻译权、汇编权等权利视为自动转让给本刊。本刊为国内各主要数据库收录期刊,本刊所发表的稿件将同时通过互联网进行网络出版或提供信息服务。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=KYY1SCRTNfoem77N5E49Rg==, magXml=g86v6jA00R/sbgjUpIcKUg==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=9u6pxsmw8htpLZWPr9RaYw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=hcSKPc8mVAlvPPm1/uxt7A==, mapNumber=null, fund=null)}, authors=[Author(id=1320037999363076631, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=duminglong@hisenssehitachi.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320037999438574105, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, authorId=1320037999363076631, language=EN, stringName=Minglong DU, firstName=Minglong, middleName=null, lastName=DU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Qingdao Hisense Hitachi Air‑conditioning Systems Co.,Ltd.,Qingdao 266510,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320037999514071578, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, authorId=1320037999363076631, language=CN, stringName=杜明龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=青岛海信日立空调系统有限公司,山东 青岛 266510, bio={"content":"
杜明龙(1985),男,硕士,主要从事空调系统减振降噪设计等方面研究,通信地址:266510山东省青岛市经济技术开发区前湾港路218号青岛海信日立空调系统有限公司,E-mail:duminglong@hisenssehitachi.com。
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杜明龙(1985),男,硕士,主要从事空调系统减振降噪设计等方面研究,通信地址:266510山东省青岛市经济技术开发区前湾港路218号青岛海信日立空调系统有限公司,E-mail:duminglong@hisenssehitachi.com。
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journalId=1316781260334530699, articleId=1320037996926185978, language=CN, orderNo=5, keyword=空化), Keyword(id=1320038000973689392, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, orderNo=6, keyword=声腔模态)], refs=[Reference(id=1320038003037286985, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=0, authorNames=null, journalName=null, refType=null, unstructuredReference=刘华,熊建国,余凯.“双碳”背景下多联机技术发展探讨[J].制冷与空调,2022,22(3):84-92., articleTitle=null, refAbstract=null), Reference(id=1320038003096007242, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=1, authorNames=null, 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figs=[ArticleFig(id=1320038001095324209, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.1, caption=
High‑frequency noise testing device for electronic expansion valve heating, figureFileSmall=p3ud4l4nnCLJ6bX7qnwNQA==, figureFileBig=9u6pxsmw8htpLZWPr9RaYw==, tableContent=null), ArticleFig(id=1320038001158238770, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图1, caption=
电子膨胀阀制热高频噪声测试装置1-电子膨胀阀;2-视液镜;3-热电偶;4-压力变送器;5-流量计;6-截止阀。
, figureFileSmall=p3ud4l4nnCLJ6bX7qnwNQA==, figureFileBig=9u6pxsmw8htpLZWPr9RaYw==, tableContent=null), ArticleFig(id=1320038001346982451, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.2, caption=
Schematic of structural design and fluid domain of electronic expansion valve, figureFileSmall=8bh1twjiqo58LONqOSmciw==, figureFileBig=yX5Hwb6ddo7Mt0c6v2m99A==, tableContent=null), ArticleFig(id=1320038001414091316, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图2, caption=
电子膨胀阀结构设计与流体域示意, figureFileSmall=8bh1twjiqo58LONqOSmciw==, figureFileBig=yX5Hwb6ddo7Mt0c6v2m99A==, tableContent=null), ArticleFig(id=1320038001485394485, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.3, caption=
Schematic of fluid simulation model and slicing positions for electronic expansion valve, figureFileSmall=1S8D2n6QkgaVHg1vwaIezA==, figureFileBig=/YnqHVqWm7kE+B7iDIRZcw==, tableContent=null), ArticleFig(id=1320038001548309046, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图3, caption=
电子膨胀阀流体仿真模型与切片位置示意, figureFileSmall=1S8D2n6QkgaVHg1vwaIezA==, figureFileBig=/YnqHVqWm7kE+B7iDIRZcw==, tableContent=null), ArticleFig(id=1320038001611223607, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.4, caption=
Isosurface plots of 20% steam volume fraction and contour nephograms of maximum steam volume fraction at different time instants, figureFileSmall=DNnGPfNqj4J9udaw3r5Ahg==, figureFileBig=vzk4Xf5WCz9fvwrHBujdvw==, tableContent=null), ArticleFig(id=1320038001678332472, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图4, caption=
不同时刻下蒸汽体积分数20%的等值面图及最大蒸汽体积相分数云图, figureFileSmall=DNnGPfNqj4J9udaw3r5Ahg==, figureFileBig=vzk4Xf5WCz9fvwrHBujdvw==, tableContent=null), ArticleFig(id=1320038001749635641, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.5, caption=
Spatial velocity vector diagram for the time period of 0.00252 to 0.00388 seconds, figureFileSmall=p/AoIodPMWSk0dZ4K5Kxzw==, figureFileBig=3kfCl/3gGg17VAipU7CZMQ==, tableContent=null), ArticleFig(id=1320038001808355898, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图5, caption=
0.002 52~0.003 88 s时间段空间速度矢量图, figureFileSmall=p/AoIodPMWSk0dZ4K5Kxzw==, figureFileBig=3kfCl/3gGg17VAipU7CZMQ==, tableContent=null), ArticleFig(id=1320038001888047675, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.6, caption=
Pressure spectrum at measuring point P1, figureFileSmall=H4E3MR6tkZlX3eW7tS1vjQ==, figureFileBig=ajYq3SXKpLgDIt+BB71iEA==, tableContent=null), ArticleFig(id=1320038001946767932, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图6, caption=
P1测点位置处的压力频谱, figureFileSmall=H4E3MR6tkZlX3eW7tS1vjQ==, figureFileBig=ajYq3SXKpLgDIt+BB71iEA==, tableContent=null), ArticleFig(id=1320038002013876797, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.7, caption=
Vibration mode of electronic expansion valve at 5 237 Hz, figureFileSmall=/29qK3hU4kG2k7n4+NCYiQ==, figureFileBig=BFFQHIt3Nko57ynpkhgHEw==, tableContent=null), ArticleFig(id=1320038002097762878, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图7, caption=
电子膨胀阀在5 237 Hz频率下的振型, figureFileSmall=/29qK3hU4kG2k7n4+NCYiQ==, figureFileBig=BFFQHIt3Nko57ynpkhgHEw==, tableContent=null), ArticleFig(id=1320038002185843263, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.8, caption=
Schematic of chamfer optimization design for electronic expansion valve, figureFileSmall=hZwLSzGkWqy9esebdGeakA==, figureFileBig=+fGhZaWF5Q2yeYc27adJbg==, tableContent=null), ArticleFig(id=1320038002265535040, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图8, caption=
电子膨胀阀倒角优化设计示意, figureFileSmall=hZwLSzGkWqy9esebdGeakA==, figureFileBig=+fGhZaWF5Q2yeYc27adJbg==, tableContent=null), ArticleFig(id=1320038002341032513, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.9, caption=
Flow field distribution and mode shape at 5221Hz for optimized electronic expansion valve scheme, figureFileSmall=aBsUHrOpDRpTeUb3RyNhVw==, figureFileBig=Vano/eGjE/msWFrUDlkggQ==, tableContent=null), ArticleFig(id=1320038002433307202, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图9, caption=
电子膨胀阀优化方案的流场分布及5 221Hz振型, figureFileSmall=aBsUHrOpDRpTeUb3RyNhVw==, figureFileBig=Vano/eGjE/msWFrUDlkggQ==, tableContent=null), ArticleFig(id=1320038002529776195, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.10, caption=
Schematic of enlarged valve chamber for electronic expansion valve, figureFileSmall=2l1vBrvwNUb8RM9N2BPbzA==, figureFileBig=55yOlwNHa+ZVtyW8/UaBeg==, tableContent=null), ArticleFig(id=1320038002596885060, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图10, caption=
电子膨胀阀阀腔增大示意, figureFileSmall=2l1vBrvwNUb8RM9N2BPbzA==, figureFileBig=55yOlwNHa+ZVtyW8/UaBeg==, tableContent=null), ArticleFig(id=1320038002659799621, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Fig.11, caption=
Flow field distribution and mode shape at 5221Hz for electronic expansion valve with rear opening, figureFileSmall=JEeL33i77eOTLA3u/D1v4g==, figureFileBig=Y6BOj5jArU4tlN9ltlPMLA==, tableContent=null), ArticleFig(id=1320038002739491398, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=图11, caption=
电子膨胀阀后端开孔的流场分布及5 221Hz振型, figureFileSmall=JEeL33i77eOTLA3u/D1v4g==, figureFileBig=Y6BOj5jArU4tlN9ltlPMLA==, tableContent=null), ArticleFig(id=1320038002814988871, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=EN, label=Tab.1, caption=
Measuring instruments and accuracy
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测试仪器 | 测试量程 | 测试精度 | 测试参数 |
|---|
| 科氏流量计(E+H) | 0~250 kg/h | +0.5% | 质量流量 |
| T型热电偶 | -100~200 ℃ | ±0.3 ℃ | 阀前/阀后温度 |
| 压力变送器(罗斯蒙特) | 0~10 MPa | ±0.075% | 阀前/阀后压力 |
| 麦克风传感器(I437L) | 10~20 000 Hz | ±10 Hz | 噪声频谱 |
), ArticleFig(id=1320038002882097736, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037996926185978, language=CN, label=表1, caption=
测量仪器及精度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测试仪器 | 测试量程 | 测试精度 | 测试参数 |
|---|
| 科氏流量计(E+H) | 0~250 kg/h | +0.5% | 质量流量 |
| T型热电偶 | -100~200 ℃ | ±0.3 ℃ | 阀前/阀后温度 |
| 压力变送器(罗斯蒙特) | 0~10 MPa | ±0.075% | 阀前/阀后压力 |
| 麦克风传感器(I437L) | 10~20 000 Hz | ±10 Hz | 噪声频谱 |
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