かくはんそうにおける気体巻き込みに及ぼすかくはん翼形状，邪魔板およびドラフトチューブの影響

• 田中 真人

  新潟大学工学部 化学工学科

• 伊積 孝

  新潟大学工学部 化学工学科

• 吉村 浩喜

  新潟大学工学部 化学工学科

書誌事項

タイトル別名

• Effects of shape of impeller, baffle and draft tube on gas enfoldment in the stirred tank.
• カクハンソウ ニ オケル キタイ マキコミ ニ オヨボス カクハンヨク ケイジ

抄録

Impeller speeds at which gas enfoldment from the free liquid surface and stationary dispersion of enfolded bubbles began were measured by changing various factors such as the shape of the impeller, the number of baffles, the impeller location, the liquid depth, the tank diameter and surface tension and by installing a draft tube.<BR>For all impellers investigated (six-bladed disc turbine, four-bladed pitched fan turbine, three-bladed propeller), the installation of baffles and the increase of their number raised the impeller speed for gas enfoldment. For the condition of four baffles, the following expression was obtained : <BR>N_re²d_i/g=A (σ/σ₀) ^3.6 (d_i/D_T) ^-3.6 (h_L/D_T) ^c (h_L-h_i/h_L) ^d<BR>where the values of A, c and d depended on the shape of the impeller.<BR>For impellers other than the disc turbine, installing the draft tube and lengthening it raised the impeller speed for gas enfoldment.<BR>Moreover, simultaneous installation of baffles and draft tube was found to raise the impeller speed for gas enfoldment for all impellers.

収録刊行物

• 化学工学論文集

  化学工学論文集 11 (6), 668-673, 1985

  公益社団法人 化学工学会

キーワード

• Agitation
• Gas Enfoldment
• Stirred Tank
• Bubble Dispersion
• Gas Liquid Dispersion

詳細情報

• CRID: 1390001204507677312
• NII論文ID: 130000862882
• NII書誌ID: AN00037234
• DOI: 10.1252/kakoronbunshu.11.668
• ISSN: 13499203
• ISSN: 0386216X
• NDL書誌ID: 3056596
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3056596
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu1975/11/6/11_6_668/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可