某工业X射线探伤厂房通风系统优化技术研究  

Research on optimization technology of ventilation system in an industrial X-ray inspection workshop

作　　者：管毅 郭支喜[2] 张晓静 王超[1] 李秀萍[2] 吴庆东[1] 王松 柴栋良 Guan Yi;Guo Zhixi;Zhang Xiaojing;Wang Chao;Li Xiuping;Wu Qingdong;Wang Song;Chai Dongliang(Department of Radiation Health,Radiation Medicine and Environmental Medicine Department,China Institute for Radiation Protection,Taiyuan 030006,China;Department of Occupational Health of Poisoning,Shanxi Provincial Center for Disease Control and Prevention,Taiyuan 030012,China;The Office of the Chief Engineer,Shanxi Xingxin Safety Production Technology Service Co.,Ltd.,Taiyuan 030024,China)

机构地区：[1]中国辐射防护研究院放射医学与环境医学研究所放射卫生室,太原030006 [2]山西省疾病预防控制中心职业卫生与中毒科,太原030012 [3]山西兴新安全生产技术服务有限公司总工程师办公室,太原030024

出　　处：《中华劳动卫生职业病杂志》2024年第11期862-868,共7页Chinese Journal of Industrial Hygiene and Occupational Diseases

基　　金：山西省卫生健康委科研课题项目(2022138)。

摘　　要：目的探讨探伤厂房运行过程中合理的气流组织及排风系统设施,解决厂房内伴生的臭氧和氮氧化物等有害气体蓄积的问题。方法于2023年5月,采用计算流体动力学(CFD)技术,对工业射线探伤作业产生的臭氧和氮氧化物扩散规律进行数值模拟,并采用对比检测方法对探伤厂房通风系统改造前后臭氧和氮氧化物浓度进行分析。结果通风系统改造后,探伤厂房内臭氧的平均浓度由0.81 mg/m^(3)降为0.03 mg/m^(3),氮氧化物的平均浓度由0.42 mg/m^(3)降为0.01 mg/m^(3),差异均有统计学意义(t=20.51、10.38,P<0.001)。结论探伤厂房通风设施设置采用上送下排的气流组织方式,并经通风水力平衡计算设计科学的通风管道,可对探伤厂房的有害气体浓度进行有效控制。ObjectiveTo investigate the reasonable airflow organization and exhaust system facilities during the operation of the inspection workshop,and solve the problem of the accumulation of harmful gases such as ozone and nitrogen oxides in the workshop.MethodsIn May 2023,computational fluid dynamics(CFD)technology was used to numerically simulate the diffusion of ozone and nitrogen oxides generated by industrial radiographic inspection operations,and the comparative detection method was used to analyze the ozone and nitrogen oxides concentrations before and after the renovation of the ventilation system of the inspection workshop.ResultsAfter the renovation of ventilation system,the average concentration of ozone in the inspection workshop decreased from 0.81 mg/m^(3) to 0.03 mg/m^(3),and the average concentration of nitrogen oxides decreased from 0.42 mg/m^(3) to 0.01 mg/m^(3),and the differences were statistically significant(t=20.51,10.38,P<0.001).ConclusionThe ventilation facilities of the inspection workshop are set up in the airflow organization mode of sending up and down the exhaust,and the ventilation pipes are scientifically designed through the calculation of ventilation hydraulic balance,which can effectively control the concentration of harmful gases in the inspection workshop.

关 键 词：辐射 电离 通风 臭氧 氮氧化物 探伤厂房 计算流体动力学 技术改造 

分 类 号：R134.1[医药卫生—劳动卫生]