Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism
As the manufacturing industry evolves, the significance of control valve positioners in chemical production escalates. The flapper–nozzle system, the heart of control valve positioners, directly influences the linearity of system control. Presently, studies on the flapper–nozzle system primarily foc...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-12-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/15/1/55 |
| _version_ | 1827371420274917376 |
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| author | Aixiang Ma Heruizhi Xiao Xihao Yan Xianghao Kong Feng Rong Lu Zhang Sihai Zhao |
| author_facet | Aixiang Ma Heruizhi Xiao Xihao Yan Xianghao Kong Feng Rong Lu Zhang Sihai Zhao |
| author_sort | Aixiang Ma |
| collection | DOAJ |
| description | As the manufacturing industry evolves, the significance of control valve positioners in chemical production escalates. The flapper–nozzle system, the heart of control valve positioners, directly influences the linearity of system control. Presently, studies on the flapper–nozzle system primarily focus on dynamic system modeling and computational fluid dynamics simulations. However, traditional flapper–nozzle mechanisms often fail to achieve linear control objectives. This paper proposes a novel negative-pressure nozzle structure to tackle this issue, combining computational fluid dynamics and experimental methods, and considering gas compressibility during high-speed flow. Both simulation and experimental results suggest that the new structure improves the supply air pressure and broadens the linear pressure output range of the system, showing significant potential for practical applications. |
| first_indexed | 2024-03-08T10:40:06Z |
| format | Article |
| id | doaj.art-254f54df9ca745aebbf81cc560effb2a |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-08T10:40:06Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-254f54df9ca745aebbf81cc560effb2a2024-01-26T17:43:34ZengMDPI AGMicromachines2072-666X2023-12-011515510.3390/mi15010055Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle MechanismAixiang Ma0Heruizhi Xiao1Xihao Yan2Xianghao Kong3Feng Rong4Lu Zhang5Sihai Zhao6School of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining & Technology, Beijing 100083, ChinaAs the manufacturing industry evolves, the significance of control valve positioners in chemical production escalates. The flapper–nozzle system, the heart of control valve positioners, directly influences the linearity of system control. Presently, studies on the flapper–nozzle system primarily focus on dynamic system modeling and computational fluid dynamics simulations. However, traditional flapper–nozzle mechanisms often fail to achieve linear control objectives. This paper proposes a novel negative-pressure nozzle structure to tackle this issue, combining computational fluid dynamics and experimental methods, and considering gas compressibility during high-speed flow. Both simulation and experimental results suggest that the new structure improves the supply air pressure and broadens the linear pressure output range of the system, showing significant potential for practical applications.https://www.mdpi.com/2072-666X/15/1/55adjusting valve positionerflapper–nozzlenegative-pressure nozzleCFDcompressible fluid |
| spellingShingle | Aixiang Ma Heruizhi Xiao Xihao Yan Xianghao Kong Feng Rong Lu Zhang Sihai Zhao Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism Micromachines adjusting valve positioner flapper–nozzle negative-pressure nozzle CFD compressible fluid |
| title | Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism |
| title_full | Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism |
| title_fullStr | Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism |
| title_full_unstemmed | Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism |
| title_short | Simulation and Experimental Study of a Novel Negative-Pressure Flapper–Nozzle Mechanism |
| title_sort | simulation and experimental study of a novel negative pressure flapper nozzle mechanism |
| topic | adjusting valve positioner flapper–nozzle negative-pressure nozzle CFD compressible fluid |
| url | https://www.mdpi.com/2072-666X/15/1/55 |
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