Characteristic Analysis of Spiral-Grooved Pump Seal

나선 홈 펌프 시일의 특성 해석

  • 하태웅 (경원대학교 건축설비.기계공학부) ;
  • 이안성 (한국기계연구원 구조연구부 회전체그룹)
  • Published : 2002.11.01

Abstract

In this paper the leakage prediction and rotordynamic analysis of an annular seal with a smooth rotor and spiral-grooved stator are performed. For developing a theoretical model, the three-control-volume analysis of the circumferentially-grooved seal is expanded by considering pressure reduction due to the pumping effect of spiral groove and pressure flow through the spiral groove. Results by the present analysis are compared with available experimental data. For leakage the analysis results generally show a reasonable agreement to the experimental results. For rotordynamic coefficients the analysis results show the same trend as the experimental results for rotor speed with spiral angles, but their magnitudes show somewhat large deviations.

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