炼油技术与工程 ›› 2021, Vol. 51 ›› Issue (4): 47-50.

• 计算机应用 • 上一篇    下一篇

石油化工企业爆炸性气体混合物分级计算方法分析

王晓飞   

  1. 中石化广州工程有限公司,广东省广州市 510620
  • 收稿日期:2020-12-02 修回日期:2021-01-26 出版日期:2021-04-15 发布日期:2021-07-16
  • 作者简介:王晓飞,工程师,硕士,主要从事石油化工安全环保设计及风险评估工作。 联系电话:020-22192751,E-mail:wangxf.lpec@sinopec.com。

Study on grading calculation method of explosive gas mixture in petrochemical enterprises

Wang Xiaofei   

  1. SINOPEC Guangzhou Engineering Co., Ltd., Guangzhou, Guangdong 510620
  • Received:2020-12-02 Revised:2021-01-26 Online:2021-04-15 Published:2021-07-16

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摘要： 石油化工企业在生产、加工、处理、转运或储存过程中会出现爆炸性气体环境,应对爆炸性气体环境的电力装置进行合理设计,选择危险环境下电气设备的防护等级。最大试验安全间隙(MESG)是爆炸性气体混合物的重要爆炸指数,分析了爆炸性气体混合物的最大试验安全间隙的计算方法,论述了不同计算方法的适用范围,引出最新的爆炸性气体混合物MESG计算经验公式,并提出一种爆炸性气体混合物分级简化计算方法,为确定爆炸性气体混合物的分级提供计算基础,为石油化工企业电气设备设计、选型提供依据。

关键词: 石油化工企业, 爆炸性气体混合物, 设备防护级别, 最大试验安全间隙

Abstract: There will be explosive gas atmosphere in the process of production, processing, handing, transportation or storage of petrochemical enterprises. Therefore, it is necessary to design electrical equipment in explosive gas atmosphere and reasonably select the protection grade of electrical equipment in hazardous atmosphere. Maximum experimental safe gap(MESG)is an important explosion index of explosive gas mixture. This paper mainly analyzes the calculation method of MESG of explosive gas mixture, discusses the application scope of different calculation methods, introduces the latest empirical formula of MESG calculation of explosive gas mixture, and gives a simplified calculation method of explosive gas mixture grading. It provides the calculation basis to determine the grade of explosive gas mixture, and provides an important basis for the design and selection of electrical equipment in petrochemical enterprises.

Key words: petrochemical enterprises, explosive gas mixture, equipment protection grade, MESG