Article(id=1319293425388728867, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293383915454866, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.09.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1733068800000, receivedDateStr=2024-12-02, revisedDate=1754323200000, revisedDateStr=2025-08-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473663899, onlineDateStr=2026-10-20, pubDate=1759161600000, pubDateStr=2025-09-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473663899, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473663899, creator=13701087609, updateTime=1792473663899, 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=36, endPage=43, ext={EN=ArticleExt(id=1319293425741050405, articleId=1319293425388728867, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Research on improvement of sealing surface in hard‑sealed ball valve based on sealing pressure, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to improve the sealing performance of hard‑sealed ball valve,we optimized the sealing surface according to the distribution of sealing pressure.Based on the Roth model,we calculated the leakage under uniform and U‑type sealing pressure distributions,found that there is less leakage in the uniform one.We regarded the average of sealing pressure in valid sealing zone and the proposed non‑dimensional number‑leakage index as two criteria of the sealing performance.On this basis,we separately analyzed the radius of the main sealing surface,R,and the radii of the chamfers,r1 and r2.In the context of this study,optimal sealing performance is achieved when R matches the radius of the ball,resulting in improvements of 32.2% and 65.0% in the two evaluation criteria compared to a flat sealing surface.The edge effect can be mitigated by limiting r1 and r2 within narrow ranges—specifically,r1=1.2~4.0 mm,and r2=0.5~2.0 mm.Beyond these ranges,a new edge effect emerges within the sealing area,leading to degraded performance.Considering both factors,the hard‑sealed ball valve exhibits peak sealing performance when R=72 mm,r1=1.2 mm,and r2=0.5 mm,with the two criteria improved by 38.5% and 66.4%,respectively.This research provides theoretical guidance for the structural design of sealing surfaces in hard‑sealed ball valves.
, authors=Jingxian KONG
1, Hanwei TIAN
2, Zhehui MA
1, Yanliang MO
2, Wenqing LI
3, Zhijiang JIN
1, Jinyuan QIAN
1, authorsList=Jingxian KONG, Hanwei TIAN, Zhehui MA, Yanliang MO, Wenqing LI, Zhijiang JIN, Jinyuan QIAN, 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=1319293430220567112, articleId=1319293425388728867, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=基于密封比压分析的硬密封球阀密封形面改进研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
为提升硬密封球阀球体与阀座间的密封性能,通过分析密封比压,对阀座接触面进行了形面优化。借助Roth泄漏模型,比较了密封比压在均匀分布、U形分布2种情况下的泄漏率,结果显示,均布比压的密封性能更好。同时,提出了一个新的无量纲指标——泄漏特征值,并结合有效密封区的密封比压平均值,共同作为密封性能的评价指标。基于以上优化目标,在阀座接触面的边缘设计倒角,分别计算倒角半径r1,r2和密封面半径R对密封性能的影响。结果表明,相比于平面,当阀座表面曲率与球体曲率相等时,两评价指标分别提升了32.2%和65.0%;在边缘处适当倒角有助于减轻边缘效应,进一步提升密封性能,当两倒角半径分别在1.2~4.0 mm和0.5~2.0 mm时,接触面两侧的密封比压显著降低;过大的倒角会在接触面内产生新的边缘效应,从而降低密封性能;当R取与球面贴合的72 mm,两侧倒角半径分别取1.2,0.5 mm时,硬密封球阀球体与阀座间的密封性能最好,相比于初始平面密封,泄漏特征值下降了38.5%,密封比压平均值提高了66.4%。研究可为硬密封球阀的密封面形面设计提供理论指导。
, authors=孔静娴
1, 田捍卫
2, 马哲辉
1, 莫延亮
2, 李文庆
3, 金志江
1, 钱锦远
1, authorsList=孔静娴, 田捍卫, 马哲辉, 莫延亮, 李文庆, 金志江, 钱锦远, authorCompany=null, correspAuthors=null, authorNote=
孔静娴(2000),女,博士研究生,主要从事流体流动及强化传热技术研究,通信地址:310027浙江省杭州市西湖区浙江大学玉泉校区浙江大学化工机械研究所,E-mail:kongjx@zju.edu.cn。
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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=GAMTIo7woZyeNCf6VEPkgQ==, magXml=QE9Xo6YJq9skUOwBrpVtgw==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=egJQHo+VaSEJjK13exwuPA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=oNHhFbUmTgB04u5o46QtgA==, mapNumber=null, fund=null)}, authors=[Author(id=1319293430870684244, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=kongjx@zju.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293431105565270, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, authorId=1319293430870684244, language=EN, stringName=Jingxian KONG, firstName=Jingxian, middleName=null, lastName=KONG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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孔静娴(2000),女,博士研究生,主要从事流体流动及强化传热技术研究,通信地址:310027浙江省杭州市西湖区浙江大学玉泉校区浙江大学化工机械研究所,E-mail:kongjx@zju.edu.cn。
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孔静娴(2000),女,博士研究生,主要从事流体流动及强化传热技术研究,通信地址:310027浙江省杭州市西湖区浙江大学玉泉校区浙江大学化工机械研究所,E-mail:kongjx@zju.edu.cn。
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2河南航天液压气动技术有限公司,郑州 450016)]), AuthorCompany(id=1319293430778409552, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, xref=3, ext=[AuthorCompanyExt(id=1319293430786798161, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, companyId=1319293430778409552, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3State Key Laboratory of Fluid Power Components & Mechatronic Systems,School of Mechanical Engineering,Zhejiang University,Hangzhou 310058,China), AuthorCompanyExt(id=1319293430799381074, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, companyId=1319293430778409552, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3浙江大学 机械工程学院 流体动力基础件与机电系统全国重点实验室,杭州 310058)])], figs=[ArticleFig(id=1319293438667895428, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.1, caption=
Sealing pressure distributions under different sealing surfaces, figureFileSmall=J5/SMlrCd0PxuvrKCnkeNQ==, figureFileBig=egJQHo+VaSEJjK13exwuPA==, tableContent=null), ArticleFig(id=1319293438995051141, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图1, caption=
不同密封形面的密封比压分布, figureFileSmall=J5/SMlrCd0PxuvrKCnkeNQ==, figureFileBig=egJQHo+VaSEJjK13exwuPA==, tableContent=null), ArticleFig(id=1319293439410287238, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.2, caption=
Geometric leaking channels under different sealing pressure distributions, figureFileSmall=MJ85kD2aMwrjGP8UO3KBUQ==, figureFileBig=fJMP3WV6LiqUH80Ub315tw==, tableContent=null), ArticleFig(id=1319293439473201799, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图2, caption=
不同比压分布下的泄漏模型, figureFileSmall=MJ85kD2aMwrjGP8UO3KBUQ==, figureFileBig=fJMP3WV6LiqUH80Ub315tw==, tableContent=null), ArticleFig(id=1319293439565476488, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.3, caption=
Comparison of leakage between different leaking channels, figureFileSmall=fQwhF8sGOWxmb+vfK+B7Zw==, figureFileBig=pLGSMUtCAHbFoHVKWtGJ4w==, tableContent=null), ArticleFig(id=1319293439632585353, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图3, caption=
通道模型泄漏性能比较, figureFileSmall=fQwhF8sGOWxmb+vfK+B7Zw==, figureFileBig=pLGSMUtCAHbFoHVKWtGJ4w==, tableContent=null), ArticleFig(id=1319293439833911946, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.4, caption=
Validation of pressure independence, figureFileSmall=kyPkQmU0iNiEY/QFbxOeHQ==, figureFileBig=T+BqKS/g6LmpjgXF9lyzcA==, tableContent=null), ArticleFig(id=1319293439905215115, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图4, caption=
压力无关性验证, figureFileSmall=kyPkQmU0iNiEY/QFbxOeHQ==, figureFileBig=T+BqKS/g6LmpjgXF9lyzcA==, tableContent=null), ArticleFig(id=1319293439972323980, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.5, caption=
A three‑circle model for sealing surface design, figureFileSmall=suUZBPB467UvdW8dMfOr/Q==, figureFileBig=TD1ltsXLSTwvl7WecgtoZQ==, tableContent=null), ArticleFig(id=1319293440043627149, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图5, caption=
密封形面“三圆模型”示意, figureFileSmall=suUZBPB467UvdW8dMfOr/Q==, figureFileBig=TD1ltsXLSTwvl7WecgtoZQ==, tableContent=null), ArticleFig(id=1319293440127513230, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.6, caption=
Key parameters in leakage index, figureFileSmall=e2wIJKIO38GtAMFwrCa9dw==, figureFileBig=ZThk0ljc8cIkwQwbs9GlGA==, tableContent=null), ArticleFig(id=1319293440190427791, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图6, caption=
泄漏特征值主要参数, figureFileSmall=e2wIJKIO38GtAMFwrCa9dw==, figureFileBig=ZThk0ljc8cIkwQwbs9GlGA==, tableContent=null), ArticleFig(id=1319293440257536656, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.7, caption=
Sealing pressure curves under different 1/R, figureFileSmall=2Vz/W9Go4zlkDH/4X695tw==, figureFileBig=3v320ZUx2AI3eA3DLAvzuQ==, tableContent=null), ArticleFig(id=1319293440337228434, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图7, caption=
不同1/R下密封比压曲线, figureFileSmall=2Vz/W9Go4zlkDH/4X695tw==, figureFileBig=3v320ZUx2AI3eA3DLAvzuQ==, tableContent=null), ArticleFig(id=1319293440404337299, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.8, caption=
The curve of leakage index as a function of 1/R, figureFileSmall=W759RfMvIGZGBD0j/X668w==, figureFileBig=oPF/EHzQo9ks1be1Q3xSCg==, tableContent=null), ArticleFig(id=1319293440467251860, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图8, caption=
泄漏特征值随1/R变化曲线, figureFileSmall=W759RfMvIGZGBD0j/X668w==, figureFileBig=oPF/EHzQo9ks1be1Q3xSCg==, tableContent=null), ArticleFig(id=1319293440530166421, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.9, caption=
The curve of sealing pressure average as a function of 1/R, figureFileSmall=judS3qRho0jM12BcAPNpIQ==, figureFileBig=9pqpOpCU/B4gpVnwafbfEg==, tableContent=null), ArticleFig(id=1319293440618246806, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图9, caption=
密封比压平均值随1/R变化曲线, figureFileSmall=judS3qRho0jM12BcAPNpIQ==, figureFileBig=9pqpOpCU/B4gpVnwafbfEg==, tableContent=null), ArticleFig(id=1319293440685355671, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.10, caption=
Sealing pressure curves under different r1, figureFileSmall=9f+ad+GGzFXfLhAkOIYnWw==, figureFileBig=maRPuuIIh3Xp3nf0CHyQdA==, tableContent=null), ArticleFig(id=1319293440744075928, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图10, caption=
不同r1下密封比压曲线, figureFileSmall=9f+ad+GGzFXfLhAkOIYnWw==, figureFileBig=maRPuuIIh3Xp3nf0CHyQdA==, tableContent=null), ArticleFig(id=1319293440802796185, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.11, caption=
The curve of sealing pressure average as a function of r1, figureFileSmall=3CNtPSyACVcrPg2nZUl8Fw==, figureFileBig=Q1kO8LR8gIzvhzx+OsRdXg==, tableContent=null), ArticleFig(id=1319293440874099354, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图11, caption=
密封比压平均值随r1变化曲线, figureFileSmall=3CNtPSyACVcrPg2nZUl8Fw==, figureFileBig=Q1kO8LR8gIzvhzx+OsRdXg==, tableContent=null), ArticleFig(id=1319293440953791131, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.12, caption=
The curve of leakage index as a function of r1, figureFileSmall=nRPCdkhIeC7DH3TwUgY5wA==, figureFileBig=tqVVsQpRiatYIWdoUzmkAg==, tableContent=null), ArticleFig(id=1319293441050260124, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图12, caption=
泄漏特征值随r1变化曲线, figureFileSmall=nRPCdkhIeC7DH3TwUgY5wA==, figureFileBig=tqVVsQpRiatYIWdoUzmkAg==, tableContent=null), ArticleFig(id=1319293442702815901, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.13, caption=
The curve of sealing pressure average as a function of r2, figureFileSmall=gIV5/M6j7QJaYgato84uGg==, figureFileBig=6NHTvyvXYO/+7es+Y6JNEQ==, tableContent=null), ArticleFig(id=1319293442761536159, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图13, caption=
密封比压平均值随r2变化曲线, figureFileSmall=gIV5/M6j7QJaYgato84uGg==, figureFileBig=6NHTvyvXYO/+7es+Y6JNEQ==, tableContent=null), ArticleFig(id=1319293442832839328, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.14, caption=
The curve of leakage index as a function of r2, figureFileSmall=vB5tUls6/9Nr8GnfAoKpSw==, figureFileBig=q32h+hGlpIUYd9qbn21UWQ==, tableContent=null), ArticleFig(id=1319293442891559585, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图14, caption=
泄漏特征值随r2变化曲线, figureFileSmall=vB5tUls6/9Nr8GnfAoKpSw==, figureFileBig=q32h+hGlpIUYd9qbn21UWQ==, tableContent=null), ArticleFig(id=1319293442958668450, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.15, caption=
The curve of left peak as a function of r2, figureFileSmall=Jwlrroiv6N/i3AIOfXYUiQ==, figureFileBig=vu+pXEZO4eW+M2A2njMFqg==, tableContent=null), ArticleFig(id=1319293443042554531, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图15, caption=
左侧峰随r2变化曲线, figureFileSmall=Jwlrroiv6N/i3AIOfXYUiQ==, figureFileBig=vu+pXEZO4eW+M2A2njMFqg==, tableContent=null), ArticleFig(id=1319293443118052004, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Fig.16, caption=
Comparison and validation of optimized geometry optimizations, figureFileSmall=q4qlR7As2oC/ENjW3FzObQ==, figureFileBig=nYtkfi8DlGMlNP5sz0cxJw==, tableContent=null), ArticleFig(id=1319293443197743781, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=图16, caption=
形面优化效果对比验证, figureFileSmall=q4qlR7As2oC/ENjW3FzObQ==, figureFileBig=nYtkfi8DlGMlNP5sz0cxJw==, tableContent=null), ArticleFig(id=1319293443285824166, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=EN, label=Tab.1, caption=
Validation of mesh independence
, figureFileSmall=null, figureFileBig=null, tableContent=
| 网格尺寸/mm | rij | ϕGCI-i/MPa | ea | GCI |
|---|
| 1.6 | 1.333 | 102.26 | | |
| 2.2 | 1.375 | 103.14 | 0.85% | 1.33% |
| 2.9 | 1.318 | 104.46 | | |
), ArticleFig(id=1319293443365515943, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293425388728867, language=CN, label=表1, caption=
网格无关性验证
, figureFileSmall=null, figureFileBig=null, tableContent=
| 网格尺寸/mm | rij | ϕGCI-i/MPa | ea | GCI |
|---|
| 1.6 | 1.333 | 102.26 | | |
| 2.2 | 1.375 | 103.14 | 0.85% | 1.33% |
| 2.9 | 1.318 | 104.46 | | |
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