减压阀噪声研究进展

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

In order to comprehensively understand the specific noise generation process inside pressure reducing valves (PRV) and its existing research outcomes, the generation of noise in PRV with its research methods in China and abroad was summarized. Then, the current research status of noise reduction technologies was reviewed from two aspects: source and propagation. Based on analysis and summarization, the major existing problems in current noise reduction technologies were discussed, including complex flow situation in PRV, ambiguity of vortex location and uncertain of interaction between high-velocity jet flows and so on. In the future investigation of noise reduction in PRV, it is advised that the position of noise source in valve should be determined firstly through combination of theoretical analysis, experiment and numerical analysis. Then, the directivity of noise in the valve can be clarified. Thereby, a further study of noise reduction mechanism and technology can be launched. Finally, noise in PRV can be reduced to the utmost extent. In the future, control of noise inside PRV should start with flow mechanism and structural innovation, and then a universal valve design theory with low noise will be put forward. Investigation into noise characteristics in pressure reducing valve can provide a reliable basis for reducing noise effectively.

Detaljer

Författare
  • Fuqiang Chen
  • Fei Wang
  • Lin Wei
  • Jinyuan Qian
  • Zhijiang Jin
Enheter & grupper
Externa organisationer
  • Zhejiang University
  • Hangzhou Special Equipment Inspection and Research Institute
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Teknisk mekanik

Nyckelord

Originalspråkkinesiska
Sidor (från-till)49-57
Antal sidor9
TidskriftPaiguan Jixie Gongcheng Xuebao/Journal of Drainage and Irrigation Machinery Engineering
Volym37
Utgåva nummer1
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa