摘要
目的通过CFD技术掌握某电解制氟厂房内氟化氢浓度分布及扩散规律,为企业开展职业卫生管理、设置有害物质报警装置及保护劳动者职业健康提供指导和科学依据。方法于2019年7月,选取某电解制氟厂房为研究对象,采用CFD技术数值模拟通风工况下氟化氢气体浓度分布及扩散规律。结果工作场所内氟化氢平均浓度为0.045 mg/m^(3),劳动者巡检通道呼吸带高度(1.5 m)氟化氢浓度为0.02 mg/m^(3),在靠近入口处的电解槽上方存在涡流会导致氟化氢气体积聚。结论CFD数值模拟方法针对电解制氟厂房氟化氢浓度分布及扩散规律的研究,可应用于电解制氟厂房职业病危害因素预防控制和管理。
Objective Using CFD technology to grasp the distribution and diffusion of hydrogen fluoride in an electrolytic fluorine plant,provide guidance and scientific basis for enterprises to carry out occupational health management in enterprises,install hazardous substance alarm devices,and protect workers'occupational health.Methods In July 2019,the diffusion law of hydrogen fluoride gas produced in an electrolytic fluorine plant is selected as the research object.Through the establishment of models and grids,the Fluent numerical simulation method is finally used to simulate the diffusion and distribution of hydrogen fluoride gas under ventilation conditions.Results The results showed that the average concentration of hydrogen fluoride was 0.045 mg/m^(3) in the workplace,and the absorbed zone height(1.5 m)was 0.02 mg/m^(3) in the inspection channel,which was in accordance with the national standard.However,there is eddy current above the electrolyzer near the inlet,may lead to the accumulation of hydrogen fluoride gas.Conclusion The research of CFD numerical simulation method on the distribution and diffusion of hydrogen fluoride concentration in electrolytic fluorine plant can be applied to the prevention,control and management of occupational hazards in electrolytic fluorine plant.
作者
吴庆东
段宇建
刘沛瑶
战景明
Wu Qingdong;Duan Yujian;Liu Peiyao;Zhan Jingming(China Institute for Radiation Protection Department of Radiological Medicine and Environmental Medicine,Taiyuan 030006,China)
出处
《中华劳动卫生职业病杂志》
CAS
CSCD
北大核心
2022年第2期152-155,共4页
Chinese Journal of Industrial Hygiene and Occupational Diseases
基金
中国辐射防护研究院青年科研基金项目(YQ20000204)。
关键词
氟化氢
计算机模拟
职业卫生
Hydrogen fluoride
Computer simulation
Occupational health
