디지털융복합연구 (Journal of Digital Convergence)

  • 제14권11호
  • /
  • Pages.257-265
  • /
  • 2016
  • /
  • 2713-6434(pISSN)
  • /
  • 2713-6442(eISSN)
한국디지털정책학회 (The Society of Digital Policy and Management)
권호 표지
DOI QR코드

DOI QR Code

유입·유출구가 일직선상인 C형 스트레이너 개발을 위한 유동특성 비교

Comparison of Flow Characteristics for the Development of a C-Type Strainer with Its Inlet and Outlet on a Straight Line

  • 신병균 (한세대학교 대학원 U-City IT융합 도시정책학과) ;
  • 권창희 (한세대학교 대학원 U-City IT융합 도시정책학과)
  • Shin, Byung-kyun (Dept. of U-City IT Convergence & Urban Policy, Hansei University) ;
  • Kwon, Chang-Hee (Dept. of U-City IT Convergence & Urban Policy, Hansei University)
  • 투고 : 2016.09.30
  • 심사 : 2016.11.20
  • 발행 : 2016.11.28
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구의 목적은 산업설비나 건축설비의 배관에서 불순물 유입을 막아 유동 시스템을 보호할 수 있는 스트레이너를 개발하기 위함에 있다. 스트레이너는 청수 또는 기름, 가스가 유입되는 배관라인의 밸브, 기기, 펌프 전단에 설치되는 장치로 형태에 따라 Y형, U형, T형이 있다. 본 연구에서는 Y형 스트레이너의 문제점을 파악하고 그 보다 개선된 새로운 모델 "유입․유출구가 일직선상에 있는 C형 스트레이너"를 개발하여 실물 시험을 통해 그 성능을 비교하였다. 시험은 기존 Y형과 C형 스트레이너 50A 실물을 한국표준과학연구원(KRISS) 유동실험실에서 4가지 상황별 실물시험으로 유동특성을 고찰하였다. 실험결과 C형 스트레이너가 Y형 보다 여과망이 없을 때는 74.9%, 여과망에 불순물이 없을 때는 54.5%, 불순물이 15% 쌓였을 때는 54.2%, 불순물이 30% 쌓였을 때는 52.4%가 용량계수(Kv)값이 높았다. 실물제작의 한계로 50A 한 종류만 시험했지만 결과로 볼 때 Y형보다 C형 스트레이너가 유동특성이 우수한 것으로 입증되어 향후 건축, 산업현장에서 유용하게 사용될 것으로 판단되었다.

The purpose of this study was to develop a strainer that could protect a flow system by blocking the introduction of foreign substances into the pipe of industrial or architectural facilities. Strainers are installed at the front tip of valves, machines, or pumps in the piping line of clean water, oil, or gas. There are Y-type, U-type, and T-type strainers. The study identified problems with the Y-type strainers, develop a "C-type strainer with its inlet and outlet on a straight line" as a more improved new model, and compared them in functions in a full-scale strainer test. The study conducted a full-scale strainer test according to four situations at the flow laboratory of Korea Research Institute of Standards and Science by using the old Y-type strainer and C-type strainer 50A. The test results show that the C-type strainer had a higher capacity coefficient(Kv) than the Y-type one, recording 74.9% when there was no screen, 54.5% when there were no foreign substances in the screen, 54.2% when there was a 15% accumulation of foreign substances, and 52.4% when there was a 30% accumulation of foreign substances. The investigator conducted a test only with the 50A type due to the limitations of life-size strainers, but the results demonstrate that the C-type strainer had better flow characteristics than the Y-type one.

키워드

참고문헌

  1. J. G. Park, "Study of flow characteristics in the T-type strainer according to the amount of foreign substances", master dissertation, chungnam national university, 2013
  2. J. I. Lim, J. H. Park, J. H. Kim, D. J. Kim, "Flow analysis of sea-water strainer", Proceedings of the KFMA Annual Metting, pp. 333-334, 2009
  3. Y. C. Park, J. H. Park, "Development of ASME T-type Strainer", The Korean Society of Mechanical Engineers Spring/Fall Conference, pp. 184, 1999
  4. B. H. Jeon, J. H. Park, J. H. Ko, H. J. Kim, H. J Kim, J. H. Kim, B. S. Kim, J. R. Kim, S. J. Oh, J. G. Kim, T. W. Lee, "Strainer Filter pressure comparing flow analysis", The Korean Society of Mechanical Engineers Spring/Fall Conference, pp. 3096-3098, 2014
  5. J. G. Park, Y. C. Park, J. H. Park, "Pressure Loss Characteristics for Strainer installed in Research Reactor Cooling System ", The Korean Society of Mechanical Engineers Spring/Fall Conference, pp. 1321, 2012
  6. J. C. Park, J. C. Jung, J. B. Song, J. K. Namgung, "Fluid dynamics", CheongMoonGak Publishing, pp. 742-743, 1993
  7. Fluid Control Institute, "Standard for pipeline strainer mesh and perforation size", FCI 68-5, 1978
  8. I. S. Jung, J. H. Park, J. H. Bea, S. Kang, "Porous modeling for the prediction of pressure drop through a perforated strainer", Journal of the Korean Society of Marine Engineering Vol. 37, No. 4, pp. 358-367, 2013 https://doi.org/10.5916/jkosme.2013.37.4.358
  9. W. S. Lee, J. S. Huh, "Fluid machinery (Turbo machinery)", Hakjin Books, pp. 17-19, 2011
  10. B. J. Roh, J. H. Park, "Fluid dynamics (revised edition)", Dongmyeongsa, pp. 143-160, 1994
  11. B. J. Roh, W. I. Cho, J. G. Kim, "Fluid dynamics", Dongmyeongsa, pp. 161-184, 2013
  12. J. Y. Yoon, W. C. Kwon, "Development of Y strainer type automatic flow rate regulating valve", Journal of Fluid Machinery Vol. 10, No. 1, pp. 49-55, 2007
  13. Korean Agency for Technology and Standards, "Test procedures for flow coefficient valves KS B 2101", 2009
  14. C. S. Jung, "A study on the flow-rate characteristic and response time characteristic of diaphragm valve", Ph.D. dissertation, Pusan National University, pp. 7-13, 2012
  15. Korean Agency for Technology and Standards "Cast iron 1 MPa Y type steam strainers KS B 1538", 2013
  16. Y. H. Koo, "Study on development of cryogenic globe control valve", Ph.D. dissertation, Pusan National University 2012
  17. J. H Lee, J. U. Cho, "Study on Convergence Technique through Structural Analysis due to The Configuration of Door Hinge", Journal of the Korea Convergence Society, Vol. 6, No. 3, pp. 59-64, 2015 https://doi.org/10.15207/JKCS.2015.6.3.059
  18. B. H. Jeong, J. H. Park, B.A. Kang, "A Study of the WPT Module Using Inductive Coupling for the Convergence Applications", Journal of the Korea Convergence Society, Vol. 6, No. 2, pp. 57-64, 2015. https://doi.org/10.15207/JKCS.2015.6.2.057