Article(id=1319293444061774739, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293383915454866, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.09.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1745596800000, receivedDateStr=2025-04-26, revisedDate=1752681600000, revisedDateStr=2025-07-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473668350, onlineDateStr=2026-10-20, pubDate=1759161600000, pubDateStr=2025-09-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473668350, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473668350, creator=13701087609, updateTime=1792473668350, updator=13701087609, issue=Issue{id=1319293383915454866, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='9', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1759161600000', pubDateStr='2025-09-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473654011, creator='13701087609', updateTime=1792473654011, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=44, endPage=53, ext={EN=ArticleExt(id=1319293444212769684, articleId=1319293444061774739, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Influence of drainage holes on operating characteristics of diffuser‑type self‑pumping mechanical seals, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To investigate the influence of drainage holes on the operating characteristics of diffuser‑type self‑pumping hydrodynamic mechanical seals (DSPHMS),the finite difference method (FDM) was used to solve the steady‑state and perturbation Reynolds equations,analyzing the effects of drainage hole distribution circle radius,hole diameter,and operating parameters on steady‑state and dynamic sealing performance.The results show that increasing the drainage hole distribution circle radius shortens the effective action radius of the spiral grooves on the face fluid,leading to a decrease in opening force,but enhances the pumping effect of the spiral grooves on the inner leakage fluid,significantly reducing the leakage rate by 44.5%;there exists a threshold value for the drainage hole diameter (0.6 mm),when the hole diameter is less than 0.6 mm,the flow resistance of the drainage holes significantly weakens the face static pressure effect;small hole diameters (0.3 mm) limit sealing performance at high rotational speeds,while hole diameters larger than 0.3 mm improve sealing performance with increasing speed;although medium pressure can significantly increase the opening force,it reduces sealing stability.The research results provide theoretical guidance for the face design and stable operation of DSPHMS.
, authors=Yunfeng XIA, Jianjun SUN, Xuchen SU, authorsList=Yunfeng XIA, Jianjun SUN, Xuchen SU, authorCompany=null, correspAuthors=Jianjun SUN, 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=1319293448704869301, articleId=1319293444061774739, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=引流孔对扩压式自泵送机械密封运行特性的影响, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
为探究引流孔对扩压式自泵送流体动压机械密封(DSPHMS)运行特性的影响,采用有限差分法(FDM)求解稳态及微扰雷诺方程,分析引流孔分布圆半径、孔径及工况参数对稳态、动态密封性能的影响。结果表明:增大引流孔分布圆半径缩短了螺旋槽对端面流体的有效作用半径,导致开启力下降,但增强了螺旋槽对内侧泄漏流体的抽吸作用,使泄漏率显著降低了44.5%;引流孔径存在阈值(0.6 mm),当孔径小于0.6 mm时,引流孔的流动阻力显著削弱端面静压效应;小孔径(0.3 mm)在高转速下密封性能受限,而孔径大于0.3 mm时密封性能随转速提升;介质压力虽能显著提高开启力,但会降低密封稳定性。该研究可为DSPHMS的端面设计及稳定运行提供理论指导。
, authors=夏云峰, 孙见君, 苏徐辰, authorsList=夏云峰, 孙见君, 苏徐辰, authorCompany=null, correspAuthors=孙见君, 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=UnJB/Cb+XNTVnTTujxRg3Q==, magXml=Ci96po+v+Yc+5bZ62etypg==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=5deJBtNAJ8YbdxhytSDy8w==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=IjfGiPgLwy0oa7GHWpNO9g==, mapNumber=null, fund=null)}, authors=[Author(id=1319293449011053498, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=xiayunfeng@njfu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293449094939580, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, authorId=1319293449011053498, language=EN, stringName=Yunfeng XIA, firstName=Yunfeng, middleName=null, lastName=XIA, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Mechanical and Electrical Engineering,Nanjing Forestry University,Nanjing 210037,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293449162048445, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, authorId=1319293449011053498, language=CN, stringName=夏云峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=南京林业大学 机械电子工程学院,南京 210037, bio={"content":"
夏云峰(1998),男,硕士研究生,研究方向为流体动压机械密封,E-mail:xiayunfeng@njfu.edu.cn。
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夏云峰(1998),男,硕士研究生,研究方向为流体动压机械密封,E-mail:xiayunfeng@njfu.edu.cn。
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The structure of DSPHMS, figureFileSmall=ilPZfe4p8Hr2s85CXBXoVg==, figureFileBig=5deJBtNAJ8YbdxhytSDy8w==, tableContent=null), ArticleFig(id=1319293452274222035, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图1, caption=
DSPHMS结构, figureFileSmall=ilPZfe4p8Hr2s85CXBXoVg==, figureFileBig=5deJBtNAJ8YbdxhytSDy8w==, tableContent=null), ArticleFig(id=1319293452483937236, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.2, caption=
Schematic of rotating ring and stationary ring structure, figureFileSmall=DBlcbYTJ55fEGJeCixBS8A==, figureFileBig=sSmnwEMAv6k/8O9l78DV/A==, tableContent=null), ArticleFig(id=1319293452551046101, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图2, caption=
动环和静环结构示意, figureFileSmall=DBlcbYTJ55fEGJeCixBS8A==, figureFileBig=sSmnwEMAv6k/8O9l78DV/A==, tableContent=null), ArticleFig(id=1319293452622349270, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.3, caption=
Cross‑sectional schematic of rotating ring and stationary ring, figureFileSmall=nfj+LiKCPMSAjC3tEppOGg==, figureFileBig=4J2wTdId+TQz6BQPfdeukQ==, tableContent=null), ArticleFig(id=1319293452697846743, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图3, caption=
动环和静环截面示意, figureFileSmall=nfj+LiKCPMSAjC3tEppOGg==, figureFileBig=4J2wTdId+TQz6BQPfdeukQ==, tableContent=null), ArticleFig(id=1319293452752372696, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.4, caption=
Schematic of computational domain, figureFileSmall=zuL0qGIFaQSBS0mlw5219A==, figureFileBig=ZrEUFmCt/6vojWo/EzL9ZQ==, tableContent=null), ArticleFig(id=1319293452823675865, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图4, caption=
计算域示意, figureFileSmall=zuL0qGIFaQSBS0mlw5219A==, figureFileBig=ZrEUFmCt/6vojWo/EzL9ZQ==, tableContent=null), ArticleFig(id=1319293452894979034, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.5, caption=
Variation of opening force Fo,dynamic stiffness coefficient K and dynamic damping coefficient C with medium pressure po, figureFileSmall=I1ASR7R3OcpB+8Xq8+k2Rw==, figureFileBig=BX48jqoDEEQY5QDfX6WFqQ==, tableContent=null), ArticleFig(id=1319293452974670811, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图5, caption=
开启力Fo、动态刚度系数K和动态阻尼系数C随介质压力po变化规律, figureFileSmall=I1ASR7R3OcpB+8Xq8+k2Rw==, figureFileBig=BX48jqoDEEQY5QDfX6WFqQ==, tableContent=null), ArticleFig(id=1319293453062751196, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.6, caption=
Mesh independence verification, figureFileSmall=LQSQVWZObm9mAWng2judOw==, figureFileBig=orXFUJc/mhN06ZZRpvmo+w==, tableContent=null), ArticleFig(id=1319293453125665757, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图6, caption=
网格无关性验证, figureFileSmall=LQSQVWZObm9mAWng2judOw==, figureFileBig=orXFUJc/mhN06ZZRpvmo+w==, tableContent=null), ArticleFig(id=1319293453205357534, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.7, caption=
Film pressure distribution under different drainage hole distribution circle radii, figureFileSmall=3NyUkiiZYO7CDIml+y68Ag==, figureFileBig=f+HXhkK/WYSTtYPMKAtBEg==, tableContent=null), ArticleFig(id=1319293453272466399, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图7, caption=
不同引流孔分布圆半径下的膜压分布规律(a)rj=36.5 mm (b)rj=40 mm (c)rj=43.5 mm
, figureFileSmall=3NyUkiiZYO7CDIml+y68Ag==, figureFileBig=f+HXhkK/WYSTtYPMKAtBEg==, tableContent=null), ArticleFig(id=1319293453360546784, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.8, caption=
Effect of drainage hole distribution circle radius on steady‑state sealing performance, figureFileSmall=Ld7F2/Cz2kw5lRdZlkU+MQ==, figureFileBig=JK0QGNvl4NDmVTSRccsHig==, tableContent=null), ArticleFig(id=1319293453427655649, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图8, caption=
引流孔分布圆半径对稳态密封性能的影响, figureFileSmall=Ld7F2/Cz2kw5lRdZlkU+MQ==, figureFileBig=JK0QGNvl4NDmVTSRccsHig==, tableContent=null), ArticleFig(id=1319293453490570210, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.9, caption=
Effect of drainage hole distribution circle radius on dynamic sealing performance, figureFileSmall=6Ldq9WF/tKSpY7UNJhI/vA==, figureFileBig=1qZsA8CH1sp8KDt8lRYPCA==, tableContent=null), ArticleFig(id=1319293453570261987, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图9, caption=
引流孔分布圆半径对动态密封性能的影响, figureFileSmall=6Ldq9WF/tKSpY7UNJhI/vA==, figureFileBig=1qZsA8CH1sp8KDt8lRYPCA==, tableContent=null), ArticleFig(id=1319293453654148068, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.10, caption=
Film pressure distribution characteristics under different drainage hole diameters, figureFileSmall=xVxfg/z6rWlR6NA8kOIiAQ==, figureFileBig=oTtlgYojoryQ/gdbZpJDNA==, tableContent=null), ArticleFig(id=1319293453746422757, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图10, caption=
不同引流孔孔径的膜压分布规律(a)dy=0.3 mm (b)dy=0.6 mm (c)dy=1.0 mm
, figureFileSmall=xVxfg/z6rWlR6NA8kOIiAQ==, figureFileBig=oTtlgYojoryQ/gdbZpJDNA==, tableContent=null), ArticleFig(id=1319293453817725926, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.11, caption=
Effect of drainage hole diameter dy on steady‑state sealing performance, figureFileSmall=K4hVK7IP8vxT6dsBA071aw==, figureFileBig=EXA+ZHNoLTn/QTxWLv6zpw==, tableContent=null), ArticleFig(id=1319293453893223399, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图11, caption=
引流孔孔径dy对稳态密封性能的影响, figureFileSmall=K4hVK7IP8vxT6dsBA071aw==, figureFileBig=EXA+ZHNoLTn/QTxWLv6zpw==, tableContent=null), ArticleFig(id=1319293453960332264, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.12, caption=
Effect of drainage hole diameter dy on dynamicsealing performance, figureFileSmall=TYMbqYmXAwrAsSdbRVXpAA==, figureFileBig=q2Vh3RdU/VkHQaKaaaUsSw==, tableContent=null), ArticleFig(id=1319293454023246825, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图12, caption=
引流孔孔径dy对动态密封性能的影响, figureFileSmall=TYMbqYmXAwrAsSdbRVXpAA==, figureFileBig=q2Vh3RdU/VkHQaKaaaUsSw==, tableContent=null), ArticleFig(id=1319293454086161386, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.13, caption=
Film pressure distribution under different rotational speeds, figureFileSmall=79sb0zHEq7E79waqaU8I7Q==, figureFileBig=35zIUFWYZmatmeEm6P1/Ag==, tableContent=null), ArticleFig(id=1319293454144881643, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图13, caption=
不同转速下的膜压分布规律(a)n=1 000 r/min (b)n=5 000 r/min (c)n=10 000 r/min
, figureFileSmall=79sb0zHEq7E79waqaU8I7Q==, figureFileBig=35zIUFWYZmatmeEm6P1/Ag==, tableContent=null), ArticleFig(id=1319293454228767724, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.14, caption=
Effect of rotational speed on sealing performance, figureFileSmall=SjHB3Foeptrl2B4xHhhtXg==, figureFileBig=aBAz8RyxBEpeBkLVvod78g==, tableContent=null), ArticleFig(id=1319293454316848109, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图14, caption=
转速对密封性能的影响, figureFileSmall=SjHB3Foeptrl2B4xHhhtXg==, figureFileBig=aBAz8RyxBEpeBkLVvod78g==, tableContent=null), ArticleFig(id=1319293454375568366, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.15, caption=
Film pressure distribution under different medium pressures, figureFileSmall=LtC344r6wsmHNJSRribMXg==, figureFileBig=Dm7XPhQ9UF5SxT2/ZTbXvg==, tableContent=null), ArticleFig(id=1319293454446871535, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图15, caption=
不同介质压力下的膜压分布规律(a)po=0.2 MPa (b)po=0.6 MPa (c)po=1.0 MPa
, figureFileSmall=LtC344r6wsmHNJSRribMXg==, figureFileBig=Dm7XPhQ9UF5SxT2/ZTbXvg==, tableContent=null), ArticleFig(id=1319293454505591792, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Fig.16, caption=
Effect of medium pressure on sealing performance, figureFileSmall=iD2J83mWMjrJFyRIAMjqGw==, figureFileBig=Yj8A77DWC2Lmtvyx1sTz4g==, tableContent=null), ArticleFig(id=1319293456166536177, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=图16, caption=
介质压力对密封性能的影响, figureFileSmall=iD2J83mWMjrJFyRIAMjqGw==, figureFileBig=Yj8A77DWC2Lmtvyx1sTz4g==, tableContent=null), ArticleFig(id=1319293456263005170, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=EN, label=Tab.1, caption=
Geometric parameters and operating parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
|---|
| 密封环内半径ri/mm | 26.5 | 引流孔孔径dy/mm | 1 |
| 密封环外半径ro/mm | 50 | 引流孔孔数m | 12 |
螺旋槽槽根半径 rg/mm | 35.5 | 引流孔分布圆半径rj/mm | 36.5 |
扩压环槽内半径 rk/mm | 44.5 | 引流孔有效长度 l/mm | 18 |
| 液膜厚度hc/µm | 3 | 储液环槽宽wy/mm | 2 |
| 螺旋槽槽深hg/µm | 50 | 储液环槽深hy/mm | 0.5 |
扩压环槽槽深 hk/µm | 30 | 密封介质压力 po/MPa | 0.5 |
| 槽数Ng | 12 | 转速n/(r⋅min) | 5 000 |
), ArticleFig(id=1319293456334308339, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293444061774739, language=CN, label=表1, caption=
几何参数与工况参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
|---|
| 密封环内半径ri/mm | 26.5 | 引流孔孔径dy/mm | 1 |
| 密封环外半径ro/mm | 50 | 引流孔孔数m | 12 |
螺旋槽槽根半径 rg/mm | 35.5 | 引流孔分布圆半径rj/mm | 36.5 |
扩压环槽内半径 rk/mm | 44.5 | 引流孔有效长度 l/mm | 18 |
| 液膜厚度hc/µm | 3 | 储液环槽宽wy/mm | 2 |
| 螺旋槽槽深hg/µm | 50 | 储液环槽深hy/mm | 0.5 |
扩压环槽槽深 hk/µm | 30 | 密封介质压力 po/MPa | 0.5 |
| 槽数Ng | 12 | 转速n/(r⋅min) | 5 000 |
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