Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
권호 표지
DOI QR코드

DOI QR Code

Study on Convergence Technique through Flow Analysis at the Flexible Joint of the Pipe Laying

배관의 신축이음에서의 유동해석을 통한 융합기술연구

  • Lee, Jung-Ho (Department of Mechanical & Automotive Engineering, Graduate School, Kongju University) ;
  • Cho, Jae-Ung (Division of Mechanical & Automotive Engineering, Kongju University)
  • 이정호 (공주대학교 대학원 기계공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2015.04.13
  • Accepted : 2015.06.20
  • Published : 2015.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

This paper is the study on the safe design of joint controling the pressure and temperature by connecting between pipes laying with the flexible joint. This study aims at decreasing the excessive pressure applied in the pipe and preventing the accident occurrence in order to solve the pipe damage by extraction and contraction due to the pressure of open air and transport gas. The flow properties of each model are investigated through the simulation analysis by applying three kinds of the flexible joints. When transport gas passes the flexible joint, the flow characteristics of heat, pressure and velocity at pipe laying are analyzed. It is thought to be contributed to the safe design due to the shape of the flexible joint by using the result of this study. And it is possible to be grafted onto the convergence technique at design and show the esthetic sense.

본 논문은 신축이음으로 배관과 배관사이에 연결되어 압력과 온도를 조절하는 이음의 안전설계에 관한 연구이다. 본 연구의 목적은 외기와 수송유체의 압력으로 인한 팽창과 수축에 의한 파이프 손상의 문제를 해결하고자 하여 파이프에 작용하는 과중한 압력을 감소시키고 사고발생을 예방하고자 하고자 한다. 3가지 유형의 신축이음을 적용하여 각각의 모델의 유동특성을 시뮬레이션 해석을 통하여 관찰한다. 각각의 모델의 형상에 따라 슬리브형, 벨로우즈형, 루프형의 신축이음 특성을 분류한다. 또한 수송 유체가 신축이음을 통과할 때, 배관에서의 열과 압력, 속도의 유동특성을 분석한다. 본 연구의 결과를 이용하면 신축이음 형상에 따른 안전설계에 기여할 수 있을 것으로 판단된다. 또한, 디자인 면에서 융합 기술로의 접목도 가능하여 미적인 감각을 나타낼 수 있다.

Keywords

References

  1. K. S. Kim, J. C. Lee, Y. J. Kim, "Thermal Stress Analysis and Flow Characteristics of a Bellows-Seal Valve for High Pressure and Temperature", The Korean Society of Mechanical Engineers Fluids Engineering, Vol. 8, No. 6, pp. 40-46, 2005.
  2. S. G. kim, J. H. Kang, X. Song, Y. C. Park, "Relationship of Flow coefficient and Accuracy of opening Bellows Seal Valve", The Korean Society of Manufacturing Process Engineers, Vol. 10, No. 11, pp. 205-208, 2007.
  3. S. G. Kang, S. H. Kim, Y. J. Jo, Y. C. Park, J. H. Kang, "Relationship of Flow coefficient and Accuracy of opening valve for Design of bellow Seal Valve", The Korean Society of Mechanical Engineers, Vol. 14, No. 16, pp. 146-149, 2011.
  4. T. S. Bae, S. P. Kim, K. H. Lee, "Structural Optimization of a Manifold Valve for Pressure Vessel", Korean Society for Precision Engineering, Vol. 26, No. 12, pp. 102-109, 2009.
  5. C. W. Lee, S. C. Jang, "A Fundamental Study on Offshore Structures of high pressure control valve", Jornal of the Korean Society of Machine tool Engineers, Vol. 19, No .6, pp. 883-888, 2010.
  6. C. Oh, S. B. Mun, Y.G. Son "An experimental study on ice slurry fluid and pressure drop characteristics in along a horizontal circular tube around the valve.", jornal of the Korean Society of Marine Engineers, Vol. 30 No.3, pp. 382-388, 2006.
  7. Y. J. Ahn, B. J. Kim, B. R. Shin, "Numerical Analysis on Flow Characteristics of High Pressure Drop Control Valves With Anti-Cavitation Trim", Korean Society for Fluid Machinery, Vol. 10, No. 4, pp. 61-70, 2007. https://doi.org/10.5293/KFMA.2007.10.4.061
  8. J. G. Park, J. H. Park, Y. C. Park "A FLOW CHARACTERISTICS FOR Y-CONNECTION IN HIGH-REYNOLDS-NUMBER FLOW SYSTEM", Korean Society for Computational Fluids Engineering, Vol. 18, No. 2, pp. 1-8, 2013.
  9. C. W. Kang, K. S. Yang, "REYNOLDS NUMBER EFFECTS ON TURBULENT PIPE FLOW", Korean Society for Computational Fluids Engineering, Vol. 16, No. 4, pp. 28-38, 2011. https://doi.org/10.6112/kscfe.2011.16.4.028
  10. C. W. Kang, K. S. Yang, "THE EFFECTS OF WALL BOUNDARY CONDITIONS ON MASS TRANSFER IN TURBULENT PIPE FLOW", Korean Society for Computational Fluids Engineering, Vol. 17, No .2, pp. 42-52, 2012. https://doi.org/10.6112/kscfe.2012.17.2.042
  11. G. K. Lee, N. K. Hur, G. H. Son, "A NUMERICAL ANALYSIS ON THE BEHAVIOR OF LIQUID FILM AROUND A CURVED EDGE", Korean Society for Computational Fluids Engineering, Vol. 17, No. 4, pp. 75-80, 2012.
  12. S. H. Park, S. K. Kim, M. Y. Ha, "Numerical Study on Flow and Heat Transfer Characteristics of Pipes with Various Shapes", The Korean Society of Mechanical Engineers, Vol. 37, No. 11, pp. 999-1007, 2013.
  13. S. Y. Lee, S. C. Kim, "Flow Analysis for Optimal Design of Small Gear Pump", Journal of Energy Engineering, Vol. 24, No. 1, pp. 88-96, 2015. https://doi.org/10.5855/ENERGY.2015.24.1.088
  14. S. S. Hwang, D. S. Park, E. J. Seong, P. H. Lee, S. A. Cho, J. Y. Han, S. H. Choi, "CFD modeling in fluid channels of micro fuel processor for fuel cell", The Korean Society of Manufacturing Process Engineers Spring Conference, pp. 141-146, 2006.
  15. Y. K. Kim, D. J. Kim, Alisher Umarov, K J Kim, J. Y. Park, "A Three-Dimensional CFD Study on the Air Flow Characteristics in a Wax Spin Coater for Silicon Wafer Manufacturing", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 10, No. 6, pp. 146-151, 2011.