Title:
PUMPING PLANT AND SOUNDPROOF DEVICE INSTALLED IN PUMPING PLANT
Document Type and Number:
Japanese Patent JP2016211476
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pumping plant that comprises a compact soundproof device while reducing the noise of a facility as a whole.SOLUTION: A pumping plant comprises a soundproof device 35 that reduces noise generated from a fan 30 for cooling a speed reducer 18. The soundproof device 35 comprises: a safety cover 36 that covers the fan 30 and a shaft coupling 25; and a resonator 37 that constitutes at least a portion of the safety cover 36. The resonator 37 has a structure that absorbs sound having a frequency determined from the rotational speed of the fan 30 and the number of blades of the fan 30.SELECTED DRAWING: Figure 2
Inventors:
ISHIWATARI TAKAYUKI
Application Number:
JP2015097183A
Publication Date:
December 15, 2016
Filing Date:
May 12, 2015
Export Citation:
Assignee:
EBARA CORP
International Classes:
F04D29/66; F04D13/00; F04D29/52; F04D29/58; F16D3/84; G10K11/16
Attorney, Agent or Firm:
Isamu Watanabe
Tetsuya Hirosawa
Tetsuya Hirosawa