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Analysis of the Influence of Different Bionic Structures on the Noise Reduction Performance of the Centrifugal Pump

Sensors (Basel, Switzerland), 2021-01, Vol.21 (3), p.886 [Peer Reviewed Journal]

2021 by the authors. 2021 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s21030886 ;PMID: 33525608

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  • Title:
    Analysis of the Influence of Different Bionic Structures on the Noise Reduction Performance of the Centrifugal Pump
  • Author: Dai, Cui ; Guo, Chao ; Chen, Yiping ; Dong, Liang ; Liu, Houlin
  • Subjects: bionic blade ; Bionics ; centrifugal pump ; Humans ; Noise ; noise reduction ; pit structure ; sawtooth structure
  • Is Part Of: Sensors (Basel, Switzerland), 2021-01, Vol.21 (3), p.886
  • Description: The strong noise generated during the operation of the centrifugal pump harms the pump group and people. In order to decrease the noise of the centrifugal pump, a specific speed of 117.3 of the centrifugal pump is chosen as a research object. The bionic modification of centrifugal pump blades is carried out to explore the influence of different bionic structures on the noise reduction performance of centrifugal pumps. The internal flow field and internal sound field of bionic blades are studied by numerical calculation and test methods. The test is carried out on a closed pump test platform which includes external characteristics and a flow noise test system. The effects of two different bionic structures on the external characteristics, acoustic amplitude-frequency characteristics and flow field structure of a centrifugal pump, are analyzed. The results show that the pit structure has little influence on the external characteristic parameters, while the sawtooth structure has a relatively great influence. The noise reduction effect of the pit structure is aimed at the wide-band noise, while the sawtooth structure is aimed at the discrete noise of the blade-passing frequency (BPF) and its frequency doubling. The noise reduction ability of the sawtooth structure is not suitable for high-frequency bands.
  • Publisher: Switzerland: MDPI
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s21030886
    PMID: 33525608
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    MEDLINE
    PubMed Central
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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