Article(id=1319293470800458614, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293383915454866, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.09.008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1729094400000, receivedDateStr=2024-10-17, revisedDate=1740412800000, revisedDateStr=2025-02-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473674726, onlineDateStr=2026-10-20, pubDate=1759161600000, pubDateStr=2025-09-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473674726, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473674726, creator=13701087609, updateTime=1792473674726, 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=54, endPage=59, ext={EN=ArticleExt(id=1319293470993396599, articleId=1319293470800458614, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Research on rotor clearance in screw compressors for high‑temperature heat pumps, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To improve the energy efficiency of screw compressors for high‑temperature heat pumps,focusing on their high temperature rise characteristics,the temperature distribution of the screw rotor was calculated using a CFD model incorporating conjugate heat transfer based on experimental data.Utilizing the obtained temperature distribution,the deformation characteristics of the rotor were analyzed using the finite element method.On this basis,the axial deformation of the screw rotor,the meshing clearance at the suction and discharge ends under thermal conditions,and the tooth tip deformation were calculated for three test conditions.Integrating the maximum deformation across the three conditions,the clearance configuration at various parts of the rotor was optimized,and the performance of the screw compressor under different conditions was evaluated with the new clearance arrangement.The results show that the circumferential temperature distribution of the rotor is highly uniform;after increasing the center distance by 0.02 mm,reducing the meshing clearance at the suction end by 0.045 mm,and decreasing the tip clearance by 0.05 mm,the mass flow rate of the screw compressor under the three conditions can be improved by 3.49% to 5.57%.This study provides a theoretical basis for clearance calculation and setting in screw compressors for high‑temperature heat pumps.
, authors=Yishuang LIU
1, Xiaokun WU
2, Shengli QU
1, Yuchen LI
1, Chuang WANG
1, Ziwen XING
1, authorsList=Yishuang LIU, Xiaokun WU, Shengli QU, Yuchen LI, Chuang WANG, Ziwen XING, authorCompany=null, correspAuthors=Chuang 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=1319293474701161356, articleId=1319293470800458614, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=高温热泵用螺杆压缩机转子间隙研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
为提高高温热泵用螺杆压缩机的能效水平,针对其高温升特点,基于试验数据,采用包含共轭传热的CFD模型计算了螺杆转子的温度分布。利用所得温度分布,结合有限元方法分析了转子的变形特性。在此基础上,计算了3种试验工况下螺杆转子的轴向变形量、吸排气端在热态下的啮合间隙及齿顶变形量。综合3种工况下的最大变形量,对转子各部位间隙配置进行了优化,并评估了新间隙布置下螺杆压缩机在不同工况下的性能。结果表明,转子周向温度分布均匀性良好;将中心距增大0.02 mm、吸气端啮合间隙减小0.045 mm、齿顶间隙减小0.05 mm后,3种工况下螺杆压缩机的质量流量可提升3.49%~5.57%。研究可为高温热泵用螺杆压缩机的间隙计算与设置提供理论依据。
, authors=刘一爽
1, 武晓昆
2, 屈胜利
1, 李禹辰
1, 王闯
1, 邢子文
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, correspAuthorsNote=
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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=ICbn4s/Fz/vvBTtyVujGIA==, magXml=g6VJ88z/lqk6nZsMeHTFzw==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=/GVU/5ZDlDvGIozkeUnxVQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=IkOQagVopI7Y5DQhjT1oOA==, mapNumber=null, fund=null)}, authors=[Author(id=1319293475267392405, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=liuyishuang1998@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293475355472791, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, authorId=1319293475267392405, language=EN, stringName=Yishuang LIU, firstName=Yishuang, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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刘一爽(1998),男,博士研究生,主要研究方向为高温热泵系统优化以及压缩机开发,E-mail:liuyishuang1998@163.com。
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刘一爽(1998),男,博士研究生,主要研究方向为高温热泵系统优化以及压缩机开发,E-mail:liuyishuang1998@163.com。
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流域几何模型, figureFileSmall=EOlCSAQF802BvSSFrDXb+w==, figureFileBig=/GVU/5ZDlDvGIozkeUnxVQ==, tableContent=null), ArticleFig(id=1319293479293924288, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Fig.2, caption=
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工况1下转子温度分布, figureFileSmall=kMrEPl8GX3s64iufrKpzHA==, figureFileBig=ScFsQvEb3sGteS07mUK/vw==, tableContent=null), ArticleFig(id=1319293479692383174, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Fig.5, caption=
Axial length deformation of rotor under different working conditions, figureFileSmall=3JSvz9FjuZ3Em90cXsLBvQ==, figureFileBig=iQP2+Apzsxg93LVMQrLaXw==, tableContent=null), ArticleFig(id=1319293479767880647, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=图5, caption=
不同工况下转子轴向长度变形量, figureFileSmall=3JSvz9FjuZ3Em90cXsLBvQ==, figureFileBig=iQP2+Apzsxg93LVMQrLaXw==, tableContent=null), ArticleFig(id=1319293479834989512, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Fig.6, caption=
The suction end meshing clearance under different working conditions, figureFileSmall=xp/R6a4s9bxYea0Ru/KCGg==, figureFileBig=QNSYWHfUdpkyhH4Q2fh3Cg==, tableContent=null), ArticleFig(id=1319293479902098377, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=图6, caption=
不同工况下吸气端啮合间隙, figureFileSmall=xp/R6a4s9bxYea0Ru/KCGg==, figureFileBig=QNSYWHfUdpkyhH4Q2fh3Cg==, tableContent=null), ArticleFig(id=1319293479969207242, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Fig.7, caption=
Exhaust end meshing clearance under different working conditions, figureFileSmall=RL3YxHyzSBGTVVC3/1n28A==, figureFileBig=qxH/6f/E4wy08Bkn6LZyhQ==, tableContent=null), ArticleFig(id=1319293480040510411, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=图7, caption=
不同工况下排气端啮合间隙, figureFileSmall=RL3YxHyzSBGTVVC3/1n28A==, figureFileBig=qxH/6f/E4wy08Bkn6LZyhQ==, tableContent=null), ArticleFig(id=1319293480116007884, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Fig.8, caption=
Tooth tip deformation of male rotor underworking condition 1, figureFileSmall=ptPjG60qw1dFcJDoGDUMYQ==, figureFileBig=v6YeUz1DRDh9c9HzAupXDw==, tableContent=null), ArticleFig(id=1319293480191505357, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=图8, caption=
工况1下阳转子齿顶变形量, figureFileSmall=ptPjG60qw1dFcJDoGDUMYQ==, figureFileBig=v6YeUz1DRDh9c9HzAupXDw==, tableContent=null), ArticleFig(id=1319293480262808526, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Fig.9, caption=
Tooth tip deformation of female rotor under65/120 ℃ condition, figureFileSmall=nwcEiDxybf6KZDATxkuGtg==, figureFileBig=6bbkarPnRNQdgveW6KEBuA==, tableContent=null), ArticleFig(id=1319293480338305999, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=图9, caption=
工况1下阴转子齿顶变形量, figureFileSmall=nwcEiDxybf6KZDATxkuGtg==, figureFileBig=6bbkarPnRNQdgveW6KEBuA==, tableContent=null), ArticleFig(id=1319293480417997776, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Tab.1, caption=
Boundary condition
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 进口温度/℃ | 进口压力/kPa | 出口温度/℃ | 出口压力/kPa |
|---|
| 1 | 99.9 | 931.4 | 132.7 | 1 777.0 |
| 2 | 93.7 | 808.1 | 131.4 | 1 767.0 |
| 3 | 87.5 | 699.3 | 130.0 | 1 724.0 |
), ArticleFig(id=1319293480497689553, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=表1, caption=
边界条件
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 进口温度/℃ | 进口压力/kPa | 出口温度/℃ | 出口压力/kPa |
|---|
| 1 | 99.9 | 931.4 | 132.7 | 1 777.0 |
| 2 | 93.7 | 808.1 | 131.4 | 1 767.0 |
| 3 | 87.5 | 699.3 | 130.0 | 1 724.0 |
), ArticleFig(id=1319293480560604114, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Tab.2, caption=
Grid independence verification results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 网格数 | 质量流量/(kg·s-1) | 偏差/% | 功率/kW | 偏差/% |
|---|
| 1 | 1 848 120 | 5.57 | -1.3 | 89.9 | -0.7 |
| 2 | 2 256 400 | 5.64 | — | 90.5 | — |
| 3 | 2 664 760 | 5.66 | 0.5 | 90.8 | 0.3 |
), ArticleFig(id=1319293480644490195, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=表2, caption=
网格无关性验证结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方案 | 网格数 | 质量流量/(kg·s-1) | 偏差/% | 功率/kW | 偏差/% |
|---|
| 1 | 1 848 120 | 5.57 | -1.3 | 89.9 | -0.7 |
| 2 | 2 256 400 | 5.64 | — | 90.5 | — |
| 3 | 2 664 760 | 5.66 | 0.5 | 90.8 | 0.3 |
), ArticleFig(id=1319293480724181972, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Tab.3, caption=
Model verification
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 试验质量流量/(kg·s-1) | CFD质量流量/(kg·s-1) | 误差/% |
|---|
| 1 | 5.86 | 5.64 | -3.75 |
| 2 | 4.74 | 4.67 | -1.57 |
| 3 | 3.92 | 3.90 | -0.56 |
), ArticleFig(id=1319293480787096533, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=表3, caption=
模型验证
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 试验质量流量/(kg·s-1) | CFD质量流量/(kg·s-1) | 误差/% |
|---|
| 1 | 5.86 | 5.64 | -3.75 |
| 2 | 4.74 | 4.67 | -1.57 |
| 3 | 3.92 | 3.90 | -0.56 |
), ArticleFig(id=1319293480845816791, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Tab.4, caption=
Mass flow rate after clearance adjustment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 原质量流量/(kg·s-1) | 调整质量流量/(kg·s-1) | 提升率/% |
|---|
| 1 | 5.64 | 5.83 | 3.49 |
| 2 | 4.67 | 4.91 | 5.36 |
| 3 | 3.90 | 4.12 | 5.57 |
), ArticleFig(id=1319293480925508568, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=表4, caption=
间隙调整后质量流量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 原质量流量/(kg·s-1) | 调整质量流量/(kg·s-1) | 提升率/% |
|---|
| 1 | 5.64 | 5.83 | 3.49 |
| 2 | 4.67 | 4.91 | 5.36 |
| 3 | 3.90 | 4.12 | 5.57 |
), ArticleFig(id=1319293481017783257, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=EN, label=Tab.5, caption=
Power after clearance adjustment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 原功率/kW | 调整功率/kW | 提升率/% |
|---|
| 1 | 90.54 | 91.57 | 1.14 |
| 2 | 94.16 | 95.57 | 1.49 |
| 3 | 95.49 | 96.82 | 1.38 |
), ArticleFig(id=1319293481097475034, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293470800458614, language=CN, label=表5, caption=
间隙调整后功率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 原功率/kW | 调整功率/kW | 提升率/% |
|---|
| 1 | 90.54 | 91.57 | 1.14 |
| 2 | 94.16 | 95.57 | 1.49 |
| 3 | 95.49 | 96.82 | 1.38 |
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