油气回收系统防爆通风机的点燃危险评估  

Ignition Hazard Assessment of Explosion-Proof Fans for Oil Vapour Recovery Units

作　　者：李娜[1] Li Na(SINOPEC Qingdao Research Institute of Safety Engineering,Shandong,Qingdao,266071)

机构地区：[1]中国石化青岛安全工程研究院

出　　处：《安全、健康和环境》2019年第10期34-38,共5页Safety Health & Environment

基　　金：中国石油化工股份有限公司课题“罐区VOCs安全零排放装备技术开发”(318021-1)

摘　　要：在油气回收中应用的抽气设备既要保证运行正常,又要满足潜在爆炸环境的安全运行需要。根据GB25285-2010、GB25286-2010标准要求,对防爆离心通风机的机械部件开展了点燃危险分析。主要讨论了机械火花、热表面以及静电等非电气类点燃源产生的危险部位和原因,从材料、结构、工况等方面介绍了相应的防爆措施和技术方法。Explosion-proof fans used in vapor recovery unit should have normal performances,while meeting the requirements of potentially explosive environment.According to GB25285-2010、GB25286-2010 Standards,the ignition risk analysis of the mechanical components of the centrifugal fan was carried out.The main positions and causes of non-electrical ignition sources,such as mechanical sparks,hot surfaces and static electricity,were discussed.The corresponding explosion-proof measures and technical methods were introduced from the aspects of materials,structure and working conditions.

关 键 词：防爆通风机 非电气防爆 点燃危险分析 油气回收 

分 类 号：TD4[矿业工程—矿山机电]