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Design and Basic Performance Test of 4 Inch QC/DC Bellows for LNG Bunkering

LNG 벙커링용 4인치 QC/DC의 설계 및 기초 성능 실험

  • Jang, Sung-Cheol (Dept. of Mechanical System Engineering, Korea Polytechnic, Chungjoo Campus) ;
  • Seo, Chang-Myung (Dept. of Industerical Installation, Korea Polytechnic, Chungjoo Campus) ;
  • Kwen, Min-Soo (Dept. of Drone Electronics, Korea Polytechnic, Chungjoo Campus) ;
  • Eom, Jeong-Pil (Shipbuilding Marine Engineering R&D Center, GNTP) ;
  • Jung, Hyun-Cheol (NES CO. Ltd, R&D Center)
  • 장성철 (한국폴리텍IV대학 충주캠퍼스 기계시스템학과) ;
  • 서창명 (한국폴리텍IV대학 충주캠퍼스 산업설비과) ;
  • 권민수 (한국폴리텍IV대학 충주캠퍼스 드론전자과) ;
  • 엄정필 (경남테크노파크 조선해양센터) ;
  • 정현철 ((주)엔이에스)
  • Received : 2018.10.05
  • Accepted : 2019.03.05
  • Published : 2019.03.31

Abstract

Although the localization rate of shipbuilding and marine equipment goods is set to be 70 percent by 2020, but the localization rate of equipment and materials for shipbuilding and marine facilities is currently 10 to 30 percent. For Korea's Big 3 shipbuilders, which build 70 percent of the world's largest shipbuilders, localization of shipbuilding equipment and equipment is an essential factor. In particular, there is a growing need to localize equipment and materials in terms of the number of lead standards and A/S. It is expected that there will be a rapid expansion of LNG carriers in the future, and it is necessary to develop equipment and equipment materials of LNG ships. In this study, the design and manufacture of LNG vessel equipment was conducted. Design and basic performance tests of 4-inch QCDC for LNG bunkering were conducted.

Keywords

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Fig. 1 Design of quick coupling and dry disconnect coupling

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Fig. 2 Design of quick coupling body

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Fig. 3 Design of dry disconnect coupling body

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Fig. 4 Design of quick coupling disc와 stem, bush

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Fig. 5 Design of dry disconnect coupling connector and disc

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Fig. 6 Quick Coupling Process

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Fig. 7 Dry Disconnect Coupling Process

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Fig. 8 4-inch QC/DC/ERC/Bellows 1.5MPa Pressurized

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Fig. 9 4-inch QC/DC/ERC/Bellows 12° displacement test

References

  1. Sung-Cheol Jang, Hyun-Cheol Jung, Jeong-Pil Eom, "CFD/CAE Analysis of QC/DC Bellows for LNG Bunkering", KSIC, Vol. 21, No. 5, pp.191-196.
  2. Rohit George Sebastian, Satheesh Kumar S., 2014, "DESIGN OF QUICK CONNECTDISCONECT HYDRAULIC COUPLING", Internationa l Journal of Recent advances in Mechanical Engineering (IJMECH) Vol.3, No.3, August
  3. 정현철, 장성철, 2018, "밸로우즈가 설치된 LNG 벙커링 장치", 특허출원, 10-2015-0022189
  4. ANSYS User's Guide. Release 17.0.
  5. Sung-Cheol Jang, Min-Soo Kwon, Chang-Myung Seo, Hyun-Cheol Jung, Jeong-Pil Eom, Kyu-Jin Shim 2018, "Basic Design of QC/DC Bellows for LNG Bunkering Vessel", Proceedings of the 2018, KSPSE Spring Conference.
  6. Chang-Myung Seo, Min-Soo Kwon, Sung-Cheol Jang, Hyoen-Chul Jeong, Joong-Ho Park, 2018, "Structural Analysis of Ship to Ship Cryogenic Ballows", Proceedings of the 2018 KSICON Spring Conference.