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Korean Chemical Engineering Research,
Vol.58, No.4, 604-609, 2020
Vol.58, No.4, 604-609, 2020
효율적인 비상대응을 위한 Process High Alarm의 Priority 분석
The Research of Process High Alarm Priority Analysis for Efficient Emergency Response
본 연구에서는 국내 석유화학산업에 설치 운영 중인 DCS (Distributed Control System)에 설정되어 실제 운전에 적용하고 있는 PV high trip point에 설정된 alarm의 우선순위를 ISA 18.2 국제규격 또는 EEMUA 191 guideline 에서 제시하고 있는 기준과 비교 분석하여 현재 사용 중인 공정 alarm의 우선순위 관리상태를 확인하는 것이 목적이다. 공정문제 발생 시 과도하게 설정된 high alarm이 짧은 시간 안에 운전자에게 제공되어 최우선으로 처리해야 할 alarm을 분별하기 어려워지는 상황이 발생하게 된다. 이로 인하여 운전자가 정해진 시간 안에 적절한 조치를 진행하지 못할 가능성이 커지고 예상하지 못한 공정의 shutdown이나 공정사고로 이어지는 사례가 다수 보고되었다. 그리하여 본연구에서는 alarm 관리에 관련된 국제규격을 소개하고 국내 석유화학산업 현장에 사용하고 있는 alarm 관리 수준을 확인하여 향후 국가 산단의 석유화학 공정에 발생할 수 있는 잠재적 위험을 알리고 위험 요소를 감소시킬 방안을 제시하고자 한다.
The purpose of this study is to check the priority control status of the current operation process alarm by comparing the priority of the alarm set up in PV high trip point, which is being installed and operated in the domestic petrochemical industry, with the criteria presented in ISA 18.2 International Standard or EEMUA 191 Guidelines. In the event of a process problem, excessively set high alarm is provided to the driver in a short period of time, making it difficult to identify the alarm that needs to be handled first. As a result, it is likely that the operator will not be able to carry out appropriate actions within the specified time frame, and many cases have been reported leading to unexpected process shutdowns or process accidents. Therefore, this study aims to introduce international standards related to alarm management and identify the level of alarm control used at the domestic petrochemical industry site to inform potential risks that may occur in the petrochemical process of the national industrial complex in the future and suggest ways to reduce risk factors. This paper was submitted to Professor Lee Inbeom’s retirement anniversary issue.
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