Min Wei, Haibin Liu, Lezhi Ye, Yanfeng Wei, Yue Chang
{"title":"带有新型双爪转子的双爪真空泵的建模和工作过程机理","authors":"Min Wei, Haibin Liu, Lezhi Ye, Yanfeng Wei, Yue Chang","doi":"10.1016/j.vacuum.2024.113844","DOIUrl":null,"url":null,"abstract":"<div><div>Double-claw rotors can significantly increase the pumping speed of the claw vacuum pump. In order to develop new claw rotors with higher comprehensive performance, in this study, a novel type of two intermeshing double-claw rotors consisting of the elliptical arc, line segment, circular arc and their conjugate curves was proposed. A geometric model of the proposed double-claw rotor was established, and profile equations were also derived. The effects of its independent geometric parameters of the proposed double-claw rotors on the performance were analyzed, and then a corresponding double-claw vacuum pump with these novel rotors was designed. Meanwhile, its the working process was studied and numerically simulated. Results indicate that the proposed double-claw rotor offers several significant advantages, including a higher pumping speed, improved profile meshing characteristics, and enhanced dynamic balance performance. The working process of the double-claw vacuum pump includes 5 processes: suction process, isometric delivery process, compression process, discharge process and mixing process. The contents of this study will provide theoretical basis for the development of the double-claw vacuum pump and promote its application.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"232 ","pages":"Article 113844"},"PeriodicalIF":3.8000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modelling and working process mechanism of a double-claw vacuum pump with novel double-claw rotors\",\"authors\":\"Min Wei, Haibin Liu, Lezhi Ye, Yanfeng Wei, Yue Chang\",\"doi\":\"10.1016/j.vacuum.2024.113844\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Double-claw rotors can significantly increase the pumping speed of the claw vacuum pump. In order to develop new claw rotors with higher comprehensive performance, in this study, a novel type of two intermeshing double-claw rotors consisting of the elliptical arc, line segment, circular arc and their conjugate curves was proposed. A geometric model of the proposed double-claw rotor was established, and profile equations were also derived. The effects of its independent geometric parameters of the proposed double-claw rotors on the performance were analyzed, and then a corresponding double-claw vacuum pump with these novel rotors was designed. Meanwhile, its the working process was studied and numerically simulated. Results indicate that the proposed double-claw rotor offers several significant advantages, including a higher pumping speed, improved profile meshing characteristics, and enhanced dynamic balance performance. The working process of the double-claw vacuum pump includes 5 processes: suction process, isometric delivery process, compression process, discharge process and mixing process. The contents of this study will provide theoretical basis for the development of the double-claw vacuum pump and promote its application.</div></div>\",\"PeriodicalId\":23559,\"journal\":{\"name\":\"Vacuum\",\"volume\":\"232 \",\"pages\":\"Article 113844\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Vacuum\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0042207X2400890X\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vacuum","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0042207X2400890X","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Modelling and working process mechanism of a double-claw vacuum pump with novel double-claw rotors
Double-claw rotors can significantly increase the pumping speed of the claw vacuum pump. In order to develop new claw rotors with higher comprehensive performance, in this study, a novel type of two intermeshing double-claw rotors consisting of the elliptical arc, line segment, circular arc and their conjugate curves was proposed. A geometric model of the proposed double-claw rotor was established, and profile equations were also derived. The effects of its independent geometric parameters of the proposed double-claw rotors on the performance were analyzed, and then a corresponding double-claw vacuum pump with these novel rotors was designed. Meanwhile, its the working process was studied and numerically simulated. Results indicate that the proposed double-claw rotor offers several significant advantages, including a higher pumping speed, improved profile meshing characteristics, and enhanced dynamic balance performance. The working process of the double-claw vacuum pump includes 5 processes: suction process, isometric delivery process, compression process, discharge process and mixing process. The contents of this study will provide theoretical basis for the development of the double-claw vacuum pump and promote its application.
期刊介绍：
Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences.
A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below.
The scope of the journal includes:
1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes).
2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis.
3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification.
4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.
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