• Title/Summary/Keyword: 안전용기

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A Study on the Design Safety of Metal Seals in High Pressure Vessels (초고압 압력용기에서 메탈시일의 설계 안전성에 관한 연구)

  • Kim Chung Kyun
    • Journal of the Korean Institute of Gas
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    • v.9 no.1 s.26
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    • pp.26-32
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    • 2005
  • This paper presents the design safety of metal seals in pressure vessels. For a high-pressure vessel, a metal seal is usually used as a primary sealing, and an elastomeric rubber O-ring is adopted as a secondary sealing unit. The FEM computed results show that an aluminium material for sealing a gas leakage is superior to a steel one because of the thermal expansion rate. The deformation and stress distributions on the metal seal and pressure vessel structures are mainly dominated by transferred temperature compared to those of the gas pressure in which is supplied by an external pump. Thus, the temperature of a metal seal material should be restricted to under $200^{\circ}C$.

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LPG용기 재검사 현황 및 문제점

  • Korea LPGas Industry Association
    • LP가스
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    • s.99
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    • pp.30-31
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    • 2005
  • 우리 협회는 용기재검사기간 연장을 위해서 산업자원부와 한국가스안전공사에 재검기간을 연장해줄것을 건의했다. 관련 내용을 게재한다.

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A Experiment Study of Cut-off Capability for L.P Gas Cylinder Cut-off Type Over-flow Valve (과류차단형 LPG용기용 밸브의 차단성능에 관한 실험적 연구)

  • 김진구;노국장;허문희;이성일;임종국;이인찬
    • Proceedings of the Safety Management and Science Conference
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    • 2004.11a
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    • pp.53-60
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    • 2004
  • 본 연구에서는 현재 일반가정이나 영업소에서 사용중인 액화석유가스 용기용밸브의 문제점을 제시하고, L.P 가스사고를 예방할 수 있는 LPG용 과류밸브의 과류차단장치를 개발${\cdot}$제작함에 있어 고압가스 안전관리기준 통합고시 ${\lceil}$제12장 4절 과류차단형 액화석유가스 용기용밸브${\rfloor}$에서 규정한 과류차단 성능시험을 실시하는데 필요한 여러 가지 변수를 선정하여 차단장치의 형상에 따른 최적의 차단 유량 범위를 찾고자 실험을 실시하였으며, 보다 궁극적으로는 일반 용기용밸브가 가진 문제점을 조속히 해결하고 진정한 의미의 안전밸브를 개발하는데 목적이 있다.

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Ir-192 100 ci용 조사기 열 시험

  • 방경식;이주찬;김동학;이재호;서기석
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2004.06a
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    • pp.434-434
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    • 2004
  • 하나로에서 생산되는 방사성 동위원소를 생산단계에서 소비단계까지의 유통체계를 확립하기 위해서는 방사성동위원소를 안전하게 운반하기 위한 운반용기를 개발하여야 한다. 따라서, 원자력연구소에서는 Ir-192 110 ci용 밀봉선원 조사기를 개발하고 있다. 이 조사기는 국내ㆍ외 방사성물질 운반용기관련 법규의 운반용기 분류기준에 의하면 B형 운반용기로 분류된다. B형 운반용기는 관련법규에서 규정하고 있는 $800^{\circ}C$ 열 조건에서 30분 이상 동안 견딜 수 있는 능력을 갖추어야 한다.(중략)

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Development of Multi-Purpose Containers for Managing LLW/VLLW from D&D (제염해체 방사성폐기물 관리를 위한 다목적 용기의 개발)

  • Lee, Jaesol;Park, Jeaho;Sung, Nakhoon;Yang, Gehyung
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.14 no.2
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    • pp.157-168
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    • 2016
  • Radioactive waste container designs should comply with the requirements for safety (i.e., transportation, storage, disposal) and other criteria such as economics and technology. These criteria are also applicable to the future management of the large amount of LLW and VLLW to arise from decontamination and decommissioning (D&D) of nuclear power plants, which have different features compared to that of wastes from operation and maintenance (O&M). This paper proposes to develop a set of standard containers of multi-purpose usage for transportation, storage and disposal. The concepts of the containers were optimized for management of D&D wastes in consideration of national system for radioactive waste management, in particular the Gyeongju Repository and associated infrastructures. A set of prototype containers were designed and built : a soft bag for VLLW, two metallic containers for VLLW/LLW (a standard IP2 container for sea transport and ISO container for road transport). Safety analyses by simulation and tests of these designs show they are in compliance with the regulatory requirements. A further development of a container with concrete is foreseen for 2016.

검사주기완화에 따른 효과조사 및 안전성 분석

  • 신광식;김용수;김찬오;이근오;김종현
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 2002.05a
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    • pp.33-39
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    • 2002
  • 지난 97년 5월에 시행된 '기업활동규제 완화에 관한 특별법'과 H년 11월 IMF 금융위기와 함께 98년 2월의 정부 조직개편과정에서도 기업의 경쟁력 강화라는 미명하에 안전관련 조직이 대폭 축소되고 기업은 자율안전정책을 도입함으로서 안전활동에 많은 위축을 가져오면서 열사용기자재의 안전관리 역시 이러한 영향을 받아 검사와 제반 안전관리 업무 등에서 많은 축소를 가져오고 있다.(중략) 현재, '99. 8월 규제개혁위원회에서 $\ulcorner$고압가스안전관리법$\lrcorner$ 의 '안전성 향상계획서'와 $\ulcorner$산업안전보건법$\lrcorner$ 의 '공정안전보고서'를 작성하는 경우 보일러, 압력용기 및 철금속 가열로의 검사기간을 4년으로 연장키로 결정했다.(중략)

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Analysis of Safety and Performance Vulnerabilities Using Heat-Using Equipment(Industrial Boiler) Inspection Results (열사용기자재 검사대상기기(산업용 보일러) 검사결과를 활용한 안전 및 성능 취약점 분석)

  • Kim, Hyung-Jun;Oh, Choong-Hyeon
    • Journal of the Korean Institute of Gas
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    • v.26 no.4
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    • pp.18-26
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    • 2022
  • The Korean government is conducting heat-using equipment(industrial boiler) inspection in accordance with the Energy Use Rationalization Act because of the heat-using equipment(industrial boiler)'s risks such as explosion and fire, and safe use and management. This paper aimed to setup the safe and performance vulnerabilities from database based on the inspection results for heat-using equipment(industrial boiler). This study surveyed the inspection results of 1,249 heat-using equipment(industrial boiler) which were failed inspection of heat-using equipment(industrial boiler) from january 2016 to december 2020. And the analysis method is to inform safety and performance vulnerability categories of heat-using equipment(industrial boiler) by statistically analyzing the failure reasons of boiler type and inspection type which are high variance in failure rate. The safety and performance vulnerability categories was abbreviated into 18 cases. And each catagory's main reason for failure was suggested by additional analyzing the opinions of inspectors. This paper would be the basic source and the comprehensive information dealing with the safety and performance vulnerability of heat-using equipment(industrial boiler).

Formulation on the Empirical Equation of the Cask Impact Forces by Dimensional Analysis (차원해석을 이용한 사용후 핵연료 수송용기의 충격력 실험식 공식화)

  • Kim Yong-Jae;Choi Young-Jin;Lee Young-Shin
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.18 no.3
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    • pp.245-254
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    • 2005
  • Radioactive material is used in the various fields. The numbers of transport for radioactive material have been gradually increased in both domestic and International regions. The safety of the cask should be secured to safely transport of radioactive material. The korean atomic law and the IAEA safety standards prescribe regulations lot the safe transport of radioactive material The cask for spent fuel is comprised of the body and the impact limiter. In this study, the empirical equation of the cask impact force is proposed based on the dimensional analysis. Using this empirical equation the characteristics of the impact limiter are analyzed. The results are also validated by comparing with the previous results of the impact area method and the finite element analysis. The present method can be used to predict the impact force of the cask.