Article(id=1319293303963632320, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293303430955712, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.08.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1735142400000, receivedDateStr=2024-12-26, revisedDate=1752595200000, revisedDateStr=2025-07-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473634949, onlineDateStr=2026-10-20, pubDate=1756483200000, pubDateStr=2025-08-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473634949, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473634949, creator=13701087609, updateTime=1792473634949, updator=13701087609, issue=Issue{id=1319293303430955712, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='8', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1756483200000', pubDateStr='2025-08-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473634822, creator='13701087609', updateTime=1792473634822, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=86, endPage=93, ext={EN=ArticleExt(id=1319293304127210177, articleId=1319293303963632320, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Effect of clearance adjustment at volute tongue region on noise in multi‑wing centrifugal fans, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To address the efficiency reduction caused by clearance backflow at the volute tongue of a double‑suction multi‑wing centrifugal fan,a clearance adjustment control structure unit is proposed.This unit is installed on the front and rear cover plates of the volute near the volute tongue to achieve clearance adjustment.By adding structural units of different thicknesses to adjust the clearance,numerical analysis methods are used to simulate the internal flow field of the fan under different clearances.The effectiveness of the clearance adjustment is verified through aerodynamic performance and noise tests of the fan.The results show that the clearance adjustment unit can effectively reduce backflow at the volute tongue,improve the static pressure recovery capability of the volute,and ameliorate the backflow state at the impeller front shroud.It also enhances the axial distribution uniformity of the annular flow rate at the impeller outlet,thereby increasing the impeller work efficiency.However,when the axial thickness of clearance adjustment unit is excessive,it aggravates impact at the volute tongue,leading to a noise increase of 4.8 dB.When the axial thicknesses of the two clearance adjustment units are equal to the axial distances between the impeller front and rear shrouds and the volute front and rear cover plates,respectively,the measured noise can be reduced by 0.7 dB,the maximum air volume increased by 0.8 m3/min,and the efficiency improved by nearly 2%.This study provides a theoretical basis and engineering practice reference for the aerodynamic performance optimization and low‑noise design of multi‑wing centrifugal fans.
, authors=Ningfang YIN
1, Xubin CHEN
2, 3, Yanhui WANG
2, Tiancong HU
1, Jun WANG
1, Xuna SHI
2, Xiaopei YANG
4, authorsList=Ningfang YIN, Xubin CHEN, Yanhui WANG, Tiancong HU, Jun WANG, Xuna SHI, Xiaopei YANG, authorCompany=null, correspAuthors=Jun WANG, 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=1319293308753527518, articleId=1319293303963632320, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=蜗舌区间隙调节对多翼离心风机噪声的影响, columnId=1317484300472271469, journalTitle=流体机械, columnName=应用技术, runingTitle=null, highlight=null, articleAbstract=
针对双吸多翼离心风机蜗舌处间隙回流导致效率降低的问题,提出一种间隙调节控制结构单元,安装在蜗舌近端的蜗壳前盖板和后盖板上,实现间隙调节。通过增加不同厚度的结构单元实现间隙调节,采用数值分析方法对不同间隙下的风机内部流场进行仿真分析,并通过风机气动性能和噪声试验验证了间隙调节的效果。结果表明,采用间隙调节单元能有效减小蜗舌处的回流,并提高改善蜗壳静压恢复能力,同时改善叶轮前盘的回流状态,提高叶轮出口环面流量的轴向分布均匀性,从而提升叶轮做功效率;间隙调节单元轴向过厚时,会加剧蜗舌处冲击,从而导致噪声上升4.8 dB;在2个间隙调节单元轴向厚度分别与叶轮前、后盘与蜗壳前、后盖板的轴向间距相等时,实测噪声可降低0.7 dB,最大风量提升0.8 m3/min,效率提高近2%。研究可为多翼离心风机的气动性能优化与低噪声设计提供理论依据和工程实践参考。
, authors=殷宁芳
1, 陈旭斌
2, 3, 王艳辉
2, 胡天聪
1, 王军
1, 施旭娜
2, 杨筱沛
4, authorsList=殷宁芳, 陈旭斌, 王艳辉, 胡天聪, 王军, 施旭娜, 杨筱沛, authorCompany=null, correspAuthors=王军, authorNote=
, correspAuthorsNote=
王军(1963),男,教授,主要从事流体机械内流特性及稳定性方向研究,通信地址:430047湖北省武汉市华中科技大学能源与动力工程学院,E-mail:
wangjhust@163.com。
, copyrightStatement=
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=joaXBbk/R8Uf39AAqK+isw==, magXml=e+DtEmnhxswVwN5coxnHmA==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=hMqDmM+x6+cJ6RQoKpYZBw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=pVvX/hneGMKakNB6i42FSg==, mapNumber=null, fund=null)}, authors=[Author(id=1319293309437199084, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2629259371@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293309521085166, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293309437199084, language=EN, stringName=Ningfang YIN, firstName=Ningfang, middleName=null, lastName=YIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430047,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293309600776943, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293309437199084, language=CN, stringName=殷宁芳, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1华中科技大学 能源与动力工程学院,武汉 430047, bio={"content":"
殷宁芳(1996),女,硕士研究生,主要从事多翼离心风机优化方向研究,E-mail:2629259371@qq.com。
"}, bioImg=null, bioContent=
殷宁芳(1996),女,硕士研究生,主要从事多翼离心风机优化方向研究,E-mail:2629259371@qq.com。
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2Ningbo Fotile Kitchenware Co.,Ltd.,Ningbo 315336,China
3Zhejiang Provincial Engineering Research Center for Healthy and Smart Kitchen,Ningbo 315336,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293309852435189, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293309676274417, language=CN, stringName=陈旭斌, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2宁波方太厨具有限公司,浙江 宁波 315336
3健康智慧厨房浙江省工程研究中心,浙江 宁波 315336, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1319293309097460450, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, xref=2, ext=[AuthorCompanyExt(id=1319293309110043363, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309097460450, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2宁波方太厨具有限公司,浙江 宁波 315336)]), AuthorCompany(id=1319293309210706661, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, xref=3, ext=[AuthorCompanyExt(id=1319293309219095270, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309210706661, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3健康智慧厨房浙江省工程研究中心,浙江 宁波 315336)])]), Author(id=1319293309932126967, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293310016013049, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293309932126967, language=EN, stringName=Yanhui WANG, firstName=Yanhui, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2Ningbo Fotile Kitchenware Co.,Ltd.,Ningbo 315336,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293310099899130, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293309932126967, language=CN, stringName=王艳辉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2宁波方太厨具有限公司,浙江 宁波 315336, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1319293309097460450, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, xref=2, ext=[AuthorCompanyExt(id=1319293309110043363, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309097460450, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2宁波方太厨具有限公司,浙江 宁波 315336)])]), Author(id=1319293310171202300, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293310259282686, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293310171202300, language=EN, stringName=Tiancong HU, firstName=Tiancong, middleName=null, lastName=HU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430047,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293310330585855, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293310171202300, language=CN, stringName=胡天聪, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1华中科技大学 能源与动力工程学院,武汉 430047, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1319293309000991455, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, xref=1, ext=[AuthorCompanyExt(id=1319293309009380064, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309000991455, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430047,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293310578049796, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293310418666241, language=CN, stringName=王军, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1华中科技大学 能源与动力工程学院,武汉 430047, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1319293309000991455, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, xref=1, ext=[AuthorCompanyExt(id=1319293309009380064, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309000991455, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2Ningbo Fotile Kitchenware Co.,Ltd.,Ningbo 315336,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293312394183433, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, authorId=1319293310670324486, language=CN, stringName=施旭娜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2宁波方太厨具有限公司,浙江 宁波 315336, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1319293309097460450, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, xref=2, ext=[AuthorCompanyExt(id=1319293309110043363, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309097460450, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4School of Mechanical and Electrical Engineering,Suzhou Vocational University,Suzhou 215104,China), AuthorCompanyExt(id=1319293309344924394, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, companyId=1319293309319758568, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4苏州市职业大学 机电工程学院,江苏 苏州 215104)])], figs=[ArticleFig(id=1319293313581171481, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.1, caption=
Schematic diagram of the fan system structure, figureFileSmall=RzkqVSCdKf3TF84pVw1V1A==, figureFileBig=hMqDmM+x6+cJ6RQoKpYZBw==, tableContent=null), ArticleFig(id=1319293313673446170, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图1, caption=
风机系统结构示意, figureFileSmall=RzkqVSCdKf3TF84pVw1V1A==, figureFileBig=hMqDmM+x6+cJ6RQoKpYZBw==, tableContent=null), ArticleFig(id=1319293313904132891, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.2, caption=
Schematic of clearance adjustment unit structure, figureFileSmall=BApUJf91QNiq81NGSbgFCg==, figureFileBig=8eNTjx6QvmupgTjSMP+ZrA==, tableContent=null), ArticleFig(id=1319293314004796188, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图2, caption=
间隙调节单元结构示意, figureFileSmall=BApUJf91QNiq81NGSbgFCg==, figureFileBig=8eNTjx6QvmupgTjSMP+ZrA==, tableContent=null), ArticleFig(id=1319293314092876573, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.3, caption=
Grid schematic diagram, figureFileSmall=6NnQIhUvJynvR24UTYvDgg==, figureFileBig=bq7YLr5qZvANG5J6VjcfjA==, tableContent=null), ArticleFig(id=1319293314159985438, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图3, caption=
网格示意, figureFileSmall=6NnQIhUvJynvR24UTYvDgg==, figureFileBig=bq7YLr5qZvANG5J6VjcfjA==, tableContent=null), ArticleFig(id=1319293314239677215, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.4, caption=
Grid independence verification, figureFileSmall=enRAnnc7RODspsCoud5URg==, figureFileBig=GR6IMiCZKRrpiph43GPwWA==, tableContent=null), ArticleFig(id=1319293314315174688, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图4, caption=
网格无关性验证, figureFileSmall=enRAnnc7RODspsCoud5URg==, figureFileBig=GR6IMiCZKRrpiph43GPwWA==, tableContent=null), ArticleFig(id=1319293314373894945, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.5, caption=
Aerodynamic performance and noise test bench for range hoods, figureFileSmall=J2Iru4zYalJYVqoyP8KLkg==, figureFileBig=CVhWoTP6nDqh/BjAbvjnwQ==, tableContent=null), ArticleFig(id=1319293314432615202, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图5, caption=
吸油烟机气动性能及噪声试验台, figureFileSmall=J2Iru4zYalJYVqoyP8KLkg==, figureFileBig=CVhWoTP6nDqh/BjAbvjnwQ==, tableContent=null), ArticleFig(id=1319293314495529763, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.6, caption=
Simulation results of static pressure Ps and maximum airflow rate Qmax under operating conditions, figureFileSmall=nMaobKZ1JILXAhTaRx20pA==, figureFileBig=mt8xcN0rcqvrhjxak5KWhg==, tableContent=null), ArticleFig(id=1319293314554250020, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图6, caption=
工作工况静压Ps及最大风量Qmax仿真结果, figureFileSmall=nMaobKZ1JILXAhTaRx20pA==, figureFileBig=mt8xcN0rcqvrhjxak5KWhg==, tableContent=null), ArticleFig(id=1319293314633941797, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.7, caption=
Influence of different clearance adjustment units on backflow at volute tongue and energy conversion capacity between impeller and volute, figureFileSmall=bCyxKUDj4q1Xv3yHH60WFg==, figureFileBig=RWm34Cwml3G6FMCmS/BnIw==, tableContent=null), ArticleFig(id=1319293314709439270, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图7, caption=
不同间隙调节单元对蜗舌处回流及叶轮与蜗壳能量转换能力的影响(a)蜗舌处回流占总流量之比 (b)叶轮效率 (c)蜗壳内能量转换能力对比
, figureFileSmall=bCyxKUDj4q1Xv3yHH60WFg==, figureFileBig=RWm34Cwml3G6FMCmS/BnIw==, tableContent=null), ArticleFig(id=1319293314776548135, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.8, caption=
Static pressure nephogram near volute tongue under different clearance adjustment units, figureFileSmall=v2deYgPBCszD9DouPomTWA==, figureFileBig=+ztfOepJwleSWsFNW4UKIA==, tableContent=null), ArticleFig(id=1319293314843657000, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图8, caption=
不同间隙调节单元下蜗舌附近静压云图(a)δ/δ0=0 (b)δ/δ0=1 (c)δ/δ0=2 (d)δ/δ0=4 (e)δ/δ0=7.3
, figureFileSmall=v2deYgPBCszD9DouPomTWA==, figureFileBig=+ztfOepJwleSWsFNW4UKIA==, tableContent=null), ArticleFig(id=1319293314914960169, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.9, caption=
Axial distribution of impeller outlet annular flow, figureFileSmall=5rFKJKUttzRf6V+dGNgQcA==, figureFileBig=YNx8asjB9dSTcq9dITiQKQ==, tableContent=null), ArticleFig(id=1319293314998846250, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图9, caption=
叶轮出口环面流量的轴向分布, figureFileSmall=5rFKJKUttzRf6V+dGNgQcA==, figureFileBig=YNx8asjB9dSTcq9dITiQKQ==, tableContent=null), ArticleFig(id=1319293316831757099, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.10, caption=
Radial velocity cloud of impeller outlet, figureFileSmall=KQqUk2kSEUJ5tGNlWulhhA==, figureFileBig=DO6pR6+LxPnOcr0VzgX+Nw==, tableContent=null), ArticleFig(id=1319293316915643180, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图10, caption=
叶轮出口径向速度云图, figureFileSmall=KQqUk2kSEUJ5tGNlWulhhA==, figureFileBig=DO6pR6+LxPnOcr0VzgX+Nw==, tableContent=null), ArticleFig(id=1319293317016306477, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.11, caption=
Local velocity vector diagram of axial section of fan, figureFileSmall=r3u4Q5cAeiUjpTpWorf7qQ==, figureFileBig=0ognheH1UKin6VJWDDepXw==, tableContent=null), ArticleFig(id=1319293317087609646, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图11, caption=
风机轴向截面局部速度矢量图, figureFileSmall=r3u4Q5cAeiUjpTpWorf7qQ==, figureFileBig=0ognheH1UKin6VJWDDepXw==, tableContent=null), ArticleFig(id=1319293317309907759, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.12, caption=
Noise value of each measurement point, figureFileSmall=4G6K/y6LTCl/K8fsa0J4Sg==, figureFileBig=YMbgAsh4s7DXJ1FyPMXr7g==, tableContent=null), ArticleFig(id=1319293317393793840, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图12, caption=
各测点噪声值, figureFileSmall=4G6K/y6LTCl/K8fsa0J4Sg==, figureFileBig=YMbgAsh4s7DXJ1FyPMXr7g==, tableContent=null), ArticleFig(id=1319293317477679921, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.13, caption=
Noise spectrum at measurement point 1, figureFileSmall=QjQRFrMO64ISMzBttzHI0g==, figureFileBig=b0pFXkFt/6zbhViZ1sdqlw==, tableContent=null), ArticleFig(id=1319293317548983090, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图13, caption=
1号测点噪声频谱, figureFileSmall=QjQRFrMO64ISMzBttzHI0g==, figureFileBig=b0pFXkFt/6zbhViZ1sdqlw==, tableContent=null), ArticleFig(id=1319293317670617907, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Fig.14, caption=
Comparison of aerodynamic performance curves for multi‑wing centrifugal fan at n=982 r/min, figureFileSmall=rS63Rqr9bMZGtQ2FJGvkNg==, figureFileBig=ALYDqn2wM8LDcxQUSli9/w==, tableContent=null), ArticleFig(id=1319293317762892596, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=图14, caption=
多翼离心风机n=982 r/min时气动性能曲线对比, figureFileSmall=rS63Rqr9bMZGtQ2FJGvkNg==, figureFileBig=ALYDqn2wM8LDcxQUSli9/w==, tableContent=null), ArticleFig(id=1319293317834195765, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=EN, label=Tab.1, caption=
Comparison of fan performance test results
, figureFileSmall=null, figureFileBig=null, tableContent=
| | 工作工况 | 电机某固定档位时的最大风量工况 | =15 m³/min | n=982 r/min |
|---|
| L/dB | n/(r·min-1) | /(m³·min-1) | /dB | n/(r·min-1) | /dB | n/(r·min-1) | /dB |
|---|
| | 63.9 | 982 | 38.4 | 61.4 | 1 150 | 38.6 | 444 | 57.3 |
| | 63.3 | 966 | 39.2 | 60.7 | 1 128 | 37.9 | 444 | 57.1 |
| | 63.4 | 933 | 38.6 | 66.2 | 1 140 | 41.9 | 450 | 58.7 |
), ArticleFig(id=1319293317905498934, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293303963632320, language=CN, label=表1, caption=
风机性能试验结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| | 工作工况 | 电机某固定档位时的最大风量工况 | =15 m³/min | n=982 r/min |
|---|
| L/dB | n/(r·min-1) | /(m³·min-1) | /dB | n/(r·min-1) | /dB | n/(r·min-1) | /dB |
|---|
| | 63.9 | 982 | 38.4 | 61.4 | 1 150 | 38.6 | 444 | 57.3 |
| | 63.3 | 966 | 39.2 | 60.7 | 1 128 | 37.9 | 444 | 57.1 |
| | 63.4 | 933 | 38.6 | 66.2 | 1 140 | 41.9 | 450 | 58.7 |
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