Abstract

최근 화학공장에서는 대형 폭발사고 등이 주로 유지 보수의 정비 시에 많이 발생되고 있다. 정비 시에 효과적인 재해예방을 하기 위해서는 핵심대상을 찾는 것이 매우 필요하다. 이 논문에서는 재해예방의 핵심요인을 찾기 위해 핵심대상으로 화학설비를 선정하였고, 화학설비별로 위험순위도를 정하여 재해예방의 대책을 세우는 우선순위를 밝히고자 하였다. 연구방법으로 화학설비의 종류는 재해분석을 통하여 찾고, 화학설비별 위험도는 재해분석을 통해 가능성인 재해빈도와 중대성인 재해강도의 근로손실일 수를 기준하여 산정하였다. 또한 화학설비별로 전문가들의 지식과 경험을 바탕으로 한 지식기반 기법에 의한 가능성과 중대성 자료를 활용하여 위험도를 산정하였다. 연구결과, 화학공장의 정비 시에 재해예방을 위해 화학설비별 위험순위는 반응기, 건조기, 탱크로리 등의 순위로 나타났다. 이 결과로부터 화학공장의 정비 시에 재해예방을 위해 위험순위에 따른 각별한 대책과 주의를 기울여야 할 것으로 사료된다. There have been large explosions at some chemical plants recently. Accidents in chemical plants have been caused mainly by servicing for maintenance. There is a need to find a key target for effective injury prevention in maintenance. In this paper, facilities were selected as a key target and the risk priority numbers of the facilities were calculated in order to prioritize preventative measures. The research method was based on the followings; the list of the facilities is found through injury analysis. Then, the risk of each facility was calculated by the frequency of accidents and the working day loss through injuries. In addition, the risk of the facilities was calculated again by the frequency and the severity based on knowledge and experience of experts. As a result, the facilities in chemical plant maintenance are ranked in order of high to low risk priority number; reactor, dryer, tank lorry, etc. In the future, special measures and attention should be directed according to the risk priority number during the maintenance of chemical plants.

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