The Journal of Korea Robotics Society (로봇학회논문지)

Korea Robotics Society (한국로봇학회)
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Screw-Propelled Robot for Detecting Grease Pipe

그리스 충전 덕트 내 탐상을 위한 스크류 추진 로봇

  • Kim, HoJoong (Seoul national University of science and Technology) ;
  • Kim, Dongseon (Seoul national University of science and Technology) ;
  • Kim, Jinhyun (Seoul national University of science and Technology)
  • Received : 2022.03.24
  • Accepted : 2022.04.06
  • Published : 2022.05.31
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Abstract

Post-tension duct in nuclear reactor containment building is filled with grease to prevent steel strand from corroding. If grease leaks by break of duct, steel strand will corrode and cause problem in building safety. Therefore, grease leak should be checked preventatively. But currently used method is inefficient, since it has to remove grease and strand to check. And other methods for checking post-tension dust are not well-researched. In this paper, we develop screw-propelled robot that can move in grease and detect grease duct directly. Also, we make the test environment that is similar to real post-tension duct of containment building and test robot in that environment to verify that our robot is feasible in the post-tension duct. The robot can move forward and backward in grease duct by twin screw mechanism and has mount for sensors to detect grease leakage and strand corrosion.

Keywords

Acknowledgement

This paper was supported by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) (P0008473, HRD Program for Industrial Innovation)

References

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