Article(id=1320037960041476181, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037798686605953, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2026.06.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1764950400000, receivedDateStr=2025-12-06, revisedDate=1781020800000, revisedDateStr=2026-06-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1792651174793, onlineDateStr=2026-10-22, pubDate=1782748800000, pubDateStr=2026-06-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792651174793, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792651174793, creator=13701087609, updateTime=1792651174793, 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=67, endPage=77, ext={EN=ArticleExt(id=1320037960251191382, articleId=1320037960041476181, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Study on the performance of liquid‑lubricated mechanical seals with derivative stepped spiral grooves, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To address the problems of insufficient opening force and excessive leakage in external spiral‑groove mechanical seals under high‑parameter operating conditions,a three‑dimensional flow‑field model of the end‑face liquid film was established.Computational fluid dynamics (CFD) simulations were combined with experimental testing to systematically investigate the coupled influence mechanisms of structural and operating parameters on the liquid-film flow‑field characteristics.The performance differences between the single spiral groove and derivative stepped spiral grooves were comparatively analyzed in terms of opening force and leakage rate.The results show that groove depth has a significant non‑monotonic effect on sealing performance.Relatively favorable overall liquid‑film performance is achieved when the groove depth is 15 μm,the spiral angle is 18°,and the groove diameter ratio is 0.5.Both the opening force and leakage rate increase approximately linearly with increasing medium pressure and rotational speed,while medium pressure has a more pronounced effect on the opening force.Compared with the single spiral groove,the derivative stepped spiral grooves effectively enhance the hydrodynamic effect through secondary pressure peaks generated by the steps.Under a high‑pressure condition of 5.5 MPa,the opening force of the three‑step groove is 8.03% higher than that of the single spiral groove,demonstrating superior load‑carrying capacity.At a high‑speed condition of 13 000 r/min,its leakage rate is reduced by approximately 6.3%.The stepped structure therefore offers advantages in both high load‑carrying capacity and low leakage under high‑parameter operating conditions,providing a theoretical basis and data support for the optimal design of high‑performance mechanical seal structures.
, authors=Yingjun BI, Fan YANG, Zhongbo LIU, Pengpeng ZHANG, Haosheng CHEN, Wenquan JIANG, authorsList=Yingjun BI, Fan YANG, Zhongbo LIU, Pengpeng ZHANG, Haosheng CHEN, Wenquan JIANG, authorCompany=null, correspAuthors=Wenquan JIANG, 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=1320037964290306167, articleId=1320037960041476181, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=衍生阶梯螺旋槽液体润滑机械密封性能研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
针对外螺旋槽机械密封在高参数工况下开启力不足与泄漏量过大的问题,建立了端面液膜三维流场计算模型,采用计算流体力学(CFD)和试验相结合的方法,系统研究了结构参数及工况参数对液膜流场特性的耦合影响机理,并对比分析了单螺旋槽与衍生阶梯螺旋槽在开启力和泄漏量方面的性能差异。研究结果表明,槽深对密封性能存在显著非单调影响,当槽深15 μm、螺旋角18°、槽径比0.5时,液膜综合性能较优;开启力与泄漏量随介质压力和转速的升高呈近似线性增长,其中,介质压力对开启力的作用更为明显。相比单螺旋槽,衍生阶梯螺旋槽利用台阶形成的次级压力峰值,有效增强了流体动压效应。在高压5.5 MPa工况下,三阶梯槽开启力较单螺旋槽提升了8.03%,展现出更优的承载能力;在13 000 r/min高转速工况下,其泄漏量降低约6.3%。该阶梯结构在高参数工况下兼具高承载与低泄漏优势,可为高性能机械密封结构的优化设计提供理论依据与数据支持。
, authors=毕英俊, 杨帆, 刘忠波, 张朋朋, 陈浩胜, 姜文全, authorsList=毕英俊, 杨帆, 刘忠波, 张朋朋, 陈浩胜, 姜文全, authorCompany=null, correspAuthors=姜文全, authorNote=
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姜文全(1979),男,教授,硕士生导师,研究方向为流体密封技术,通信地址:113001辽宁省抚顺市望花区辽宁石油化工大学机械工程学院,E-mail:
j_wenquan@126.com。
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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=k7jF/WCxU5myT/dUp/kuVQ==, magXml=EUv2QPh5vhKtUslRZH4XfA==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=IQZq19Kk8pmAsslzrRbdYg==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=hQpWapDo983VR5tL3nqmiA==, mapNumber=null, fund=null)}, authors=[Author(id=1320037964609073276, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=Byj0413@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320037964692959358, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, authorId=1320037964609073276, language=EN, stringName=Yingjun BI, firstName=Yingjun, middleName=null, lastName=BI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Mechanical Engineering,Liaoning Petrochemical University,Fushun 113001,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1320037964764262527, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, authorId=1320037964609073276, language=CN, stringName=毕英俊, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=辽宁石油化工大学 机械工程学院,辽宁 抚顺 113001, bio={"content":"
毕英俊(2000),男,硕士,研究方向为流体密封技术,E-mail:Byj0413@126.com。
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毕英俊(2000),男,硕士,研究方向为流体密封技术,E-mail:Byj0413@126.com。
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tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=22, rfOrder=36, authorNames=null, journalName=null, refType=null, unstructuredReference=夏云峰,孙见君,苏徐辰.引流孔对扩压式自泵送机械密封运行特性的影响[J].流体机械,2025,53(9):44-53., articleTitle=null, refAbstract=null), Reference(id=1320037974767677674, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=22, rfOrder=37, authorNames=null, journalName=null, refType=null, unstructuredReference=XIA Y F,SUN J J,SU X C.Influence of drainage holes on operating characteristics of diffuser‑type self‑pumping mechanical seals[J].Fluid Machinery,2025,53(9):44-53., articleTitle=null, refAbstract=null), Reference(id=1320037974830592235, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=23, rfOrder=38, authorNames=null, journalName=null, refType=null, unstructuredReference=SHAHIN I,GADALA M,ALQARADAWI M,et al.Three dimensional computational study for spiral dry gas seal with constant groove depth and different tapered grooves[J].Procedia Engineering,2013,68:205-212., articleTitle=null, refAbstract=null), Reference(id=1320037974897701100, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=24, rfOrder=39, authorNames=null, journalName=null, refType=null, unstructuredReference=WANG Q,CHEN H L,LIU T,et al.Research on performance of upstream pumping mechanical seal with different deep spiral groove[J].IOP Conference Series:Earth and Environmental Science,2012,15(7):072019., articleTitle=null, refAbstract=null), Reference(id=1320037974948032749, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=25, rfOrder=40, authorNames=null, journalName=null, refType=null, unstructuredReference=DU Q W,ZHANG D.Research on the performance of supercritical CO
2 dry gas seal with different deep spiral groove[J].Journal of Thermal Science,2019,28(3):547-558., articleTitle=null, refAbstract=null), Reference(id=1320037975023530222, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=26, rfOrder=41, authorNames=null, journalName=null, refType=null, unstructuredReference=宋鹏云,陈匡民,董宗玉,等.“零压差零泄漏”液体润滑螺旋槽机械密封性能的实验研究[J].流体机械,2000,28(7):11-13., articleTitle=null, refAbstract=null), Reference(id=1320037975094833391, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=26, rfOrder=42, authorNames=null, journalName=null, refType=null, unstructuredReference=SONG P Y,CHEN K M,DONG Z Y,et al.An experimental investigation of the sealing characteristics of a zero pressure,zero leakage lubricated spiral groove mechanical seal[J].Fluid Machinery,2000,28(7):11-13., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1320037964516798584, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, xref=null, ext=[AuthorCompanyExt(id=1320037964525187193, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, companyId=1320037964516798584, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Mechanical Engineering,Liaoning Petrochemical University,Fushun 113001,China), AuthorCompanyExt(id=1320037964537770106, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, companyId=1320037964516798584, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=辽宁石油化工大学 机械工程学院,辽宁 抚顺 113001)])], figs=[ArticleFig(id=1320037968203591841, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.1, caption=
Three‑dimensional fluid‑domain models of the end‑face liquid film for three groove types, figureFileSmall=OsDeOuPCiwpP2G1xs7TFww==, figureFileBig=IQZq19Kk8pmAsslzrRbdYg==, tableContent=null), ArticleFig(id=1320037968266506402, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图1, caption=
3种槽型对应的端面液膜流体域三维模型, figureFileSmall=OsDeOuPCiwpP2G1xs7TFww==, figureFileBig=IQZq19Kk8pmAsslzrRbdYg==, tableContent=null), ArticleFig(id=1320037968463638691, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.2, caption=
Computational domain and mesh, figureFileSmall=AWVFUGFPFX7WAbIDyyQu9A==, figureFileBig=JbZl5VDipBR5Ctoa0I8kjQ==, tableContent=null), ArticleFig(id=1320037968543330468, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图2, caption=
计算区域及网格划分, figureFileSmall=AWVFUGFPFX7WAbIDyyQu9A==, figureFileBig=JbZl5VDipBR5Ctoa0I8kjQ==, tableContent=null), ArticleFig(id=1320037968610439333, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.3, caption=
NHMSTS-4 mechanical seal test rig, figureFileSmall=iSxju0ZsvDWdmb1oOd8jVg==, figureFileBig=enn1UEN26mrAZhkpV+5p6g==, tableContent=null), ArticleFig(id=1320037968669159590, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图3, caption=
NHMSTS-4型机械密封试验机, figureFileSmall=iSxju0ZsvDWdmb1oOd8jVg==, figureFileBig=enn1UEN26mrAZhkpV+5p6g==, tableContent=null), ArticleFig(id=1320037968732074151, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.4, caption=
Verification of model validity, figureFileSmall=y2uiWJrVMriqfjBAKNB7Dg==, figureFileBig=2gSFjKjm2cL3KAKlxmNQvg==, tableContent=null), ArticleFig(id=1320037968794988712, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图4, caption=
模型有效性验证, figureFileSmall=y2uiWJrVMriqfjBAKNB7Dg==, figureFileBig=2gSFjKjm2cL3KAKlxmNQvg==, tableContent=null), ArticleFig(id=1320037968866291881, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.5, caption=
Mesh independence verification, figureFileSmall=ulyW1A8nGtwXNGhUxvTDaA==, figureFileBig=O6LpPTePEZ80H6cOlliPbg==, tableContent=null), ArticleFig(id=1320037968937595050, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图5, caption=
网格无关性验证, figureFileSmall=ulyW1A8nGtwXNGhUxvTDaA==, figureFileBig=O6LpPTePEZ80H6cOlliPbg==, tableContent=null), ArticleFig(id=1320037969025675435, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.6, caption=
Influence of groove depth on sealing performance, figureFileSmall=yDJNinxlcu4OEPfF0H9o7A==, figureFileBig=BsMk3A5+74Ro4+RTQ8jKJg==, tableContent=null), ArticleFig(id=1320037969092784300, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图6, caption=
槽深对密封性能的影响, figureFileSmall=yDJNinxlcu4OEPfF0H9o7A==, figureFileBig=BsMk3A5+74Ro4+RTQ8jKJg==, tableContent=null), ArticleFig(id=1320037969147310253, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.7, caption=
The pressure contour map at different groove depths, figureFileSmall=Jsz8G+HHwX/kWPToLh3GOA==, figureFileBig=iPvBu1AYLmzjHKkbH0qGlA==, tableContent=null), ArticleFig(id=1320037969214419118, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图7, caption=
不同槽深液膜压力云图, figureFileSmall=Jsz8G+HHwX/kWPToLh3GOA==, figureFileBig=iPvBu1AYLmzjHKkbH0qGlA==, tableContent=null), ArticleFig(id=1320037969273139375, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.8, caption=
Influence of spiral angle on sealing performance, figureFileSmall=r2tzOgZL5oP0OnZbxK2d1g==, figureFileBig=fG95Dweqr1yG3739AdgLZg==, tableContent=null), ArticleFig(id=1320037969344442544, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图8, caption=
螺旋角对密封性能影响, figureFileSmall=r2tzOgZL5oP0OnZbxK2d1g==, figureFileBig=fG95Dweqr1yG3739AdgLZg==, tableContent=null), ArticleFig(id=1320037969411551409, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.9, caption=
The pressure contour map at different spiral angles, figureFileSmall=jdPrvG9Exmg79bcLhp0mDQ==, figureFileBig=eBRpRoTgbdvUoHzOIbnkaQ==, tableContent=null), ArticleFig(id=1320037969474465970, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图9, caption=
不同螺旋角度的液膜压力云图, figureFileSmall=jdPrvG9Exmg79bcLhp0mDQ==, figureFileBig=eBRpRoTgbdvUoHzOIbnkaQ==, tableContent=null), ArticleFig(id=1320037969545769139, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.10, caption=
Influence of groove diameter ratio on sealing performance, figureFileSmall=uSGDP6HgPmpN08/tJZxr4w==, figureFileBig=N2OoVH4Uh/chBEn6brVALQ==, tableContent=null), ArticleFig(id=1320037969608683700, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图10, caption=
槽径比对密封性能的影响, figureFileSmall=uSGDP6HgPmpN08/tJZxr4w==, figureFileBig=N2OoVH4Uh/chBEn6brVALQ==, tableContent=null), ArticleFig(id=1320037969692569781, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.11, caption=
The pressure contour map at different groove diameter ratios, figureFileSmall=MLbw383MapLwZIgfZOTa+g==, figureFileBig=S/NLDs2WUIEIEYpXPTIkfw==, tableContent=null), ArticleFig(id=1320037969759678646, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图11, caption=
不同槽径比的液膜压力云图, figureFileSmall=MLbw383MapLwZIgfZOTa+g==, figureFileBig=S/NLDs2WUIEIEYpXPTIkfw==, tableContent=null), ArticleFig(id=1320037969835176119, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.12, caption=
Liquid‑film pressure distributions of the three groove types at 0.5 MPa and 1 000 r/min, figureFileSmall=ztqhtn4oTA6VkUrHjms94Q==, figureFileBig=A0RI1asXzvhZyVTU7QcPow==, tableContent=null), ArticleFig(id=1320037969906479288, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图12, caption=
3种槽型在0.5 MPa和1 000 r/min工况下的液膜压力分布, figureFileSmall=ztqhtn4oTA6VkUrHjms94Q==, figureFileBig=A0RI1asXzvhZyVTU7QcPow==, tableContent=null), ArticleFig(id=1320037969981976761, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.13, caption=
Influence of pressure on sealing performance under low parameter conditions, figureFileSmall=CFof6SAK4CeBZqwMoyiN+w==, figureFileBig=ZNHnE7wWPHOrhEyWnJ/n1g==, tableContent=null), ArticleFig(id=1320037970053279930, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图13, caption=
低参数工况下压力对密封性能的影响, figureFileSmall=CFof6SAK4CeBZqwMoyiN+w==, figureFileBig=ZNHnE7wWPHOrhEyWnJ/n1g==, tableContent=null), ArticleFig(id=1320037970128777403, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.14, caption=
Influence of low‑speed conditions on sealing performance, figureFileSmall=D7wHsixB4os0KN2UgN8g6A==, figureFileBig=l0OhgNu6S1b/hQuC7OoZJw==, tableContent=null), ArticleFig(id=1320037970200080572, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图14, caption=
低转速工况对密封性能的影响曲线, figureFileSmall=D7wHsixB4os0KN2UgN8g6A==, figureFileBig=l0OhgNu6S1b/hQuC7OoZJw==, tableContent=null), ArticleFig(id=1320037970267189437, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.15, caption=
Influence of high‑pressure conditions on sealing performance, figureFileSmall=WjkV6sTuuVUFeLj7ZsgJWw==, figureFileBig=ZR6bwLr0txl3ICp+wdMjcw==, tableContent=null), ArticleFig(id=1320037970334298302, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图15, caption=
高压工况对密封性能的影响, figureFileSmall=WjkV6sTuuVUFeLj7ZsgJWw==, figureFileBig=ZR6bwLr0txl3ICp+wdMjcw==, tableContent=null), ArticleFig(id=1320037970393018559, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Fig.16, caption=
Influence of high‑speed conditions on sealing performance, figureFileSmall=NfhdB2+qMc4dQGb5srHNfA==, figureFileBig=/FzJZ5AThimzyUEaS/wZEg==, tableContent=null), ArticleFig(id=1320037970455933120, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=图16, caption=
高转速工况对密封性能的影响, figureFileSmall=NfhdB2+qMc4dQGb5srHNfA==, figureFileBig=/FzJZ5AThimzyUEaS/wZEg==, tableContent=null), ArticleFig(id=1320037970527236289, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Tab.1, caption=
Structural and operating parameters of the spiral groove
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
|---|
| 密封环内半径ri/mm | 25 | 第三槽根半径rg3/mm | 33.5 |
| 密封环外半径ro/mm | 35 | 密封间隙h0/μm | 3 |
| 螺旋槽根半径rg/mm | 30 | 槽数Ng/个 | 12 |
| 第一槽根半径rg1/mm | 32.5 | 螺旋角α/(°) | 18 |
| 第二槽根半径rg2/mm | 31.5 | 环境压力po/MPa | 0.101 |
), ArticleFig(id=1320037970594345154, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=表1, caption=
螺旋槽结构及工况参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 |
|---|
| 密封环内半径ri/mm | 25 | 第三槽根半径rg3/mm | 33.5 |
| 密封环外半径ro/mm | 35 | 密封间隙h0/μm | 3 |
| 螺旋槽根半径rg/mm | 30 | 槽数Ng/个 | 12 |
| 第一槽根半径rg1/mm | 32.5 | 螺旋角α/(°) | 18 |
| 第二槽根半径rg2/mm | 31.5 | 环境压力po/MPa | 0.101 |
), ArticleFig(id=1320037970657259715, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=EN, label=Tab.2, caption=
Physical properties of the sealing medium
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
|---|
| 密度ρ/(kg⋅m-3) | 997 |
| 比热Cp/(J⋅kg-1⋅K-1) | 4 182 |
| 导热系数/(W⋅m-1⋅K-1) | 0.6 |
| 动力黏度/(Pa⋅s) | 0.001 |
), ArticleFig(id=1320037971944911044, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037960041476181, language=CN, label=表2, caption=
密封介质物理属性参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
|---|
| 密度ρ/(kg⋅m-3) | 997 |
| 比热Cp/(J⋅kg-1⋅K-1) | 4 182 |
| 导热系数/(W⋅m-1⋅K-1) | 0.6 |
| 动力黏度/(Pa⋅s) | 0.001 |
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