锅炉生产企业卫生防护距离标准的研究

目的研究锅炉生产企业卫生防护距离,使企业生产过程中产生的污染物不影响居住区人群健康。方法采用地面浓度反推法,计算出二甲苯的无组织排放量,从而计算卫生防护距离。结果确定年生产规模3 000~7 000 MW的锅炉生产企业,所在地区近5年平均风速为2、2~4、4 m/s时,卫生防护距离标准建议值分别为300、200、200 m。结论通过现场调查分析认为,无组织排放的二甲苯是影响锅炉生产企业卫生防护距离的主要因素,可据此计算出可行的锅炉生产企业卫生防护距离。

Study on Health Protection Distance of Boiler Manufacturing Enterprises

Objective To constitute health protection distance, keep residents from pollutants caused by the production process of the boiler manufacturing enterprises. Methods Ground concentration inverse method was used to calculate the dimethyl benzene emissions to determine the feasibility for boiler manufacturing enterprises from the health protection. Results Average wind speeds in 5 years around the region were confirmed less than 2 m/s,2 - 4 m/s,and above 4 m/s in the scale of production of 3 000 - 7 000 MW boiler manufacturing enterprise, so health protection standards values for advice were 300 m,200 m and 200 m. Conclusion Through on - site investigation and analysis, xylene is the health protection distance of main factors of affecting health protection distance of the boiler manufacturing enterprises.