论文部分内容阅读
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。
Objective To study the health protection distance of boiler manufacturers so that the pollutants produced in the process of production will not affect the health of residents in residential areas. Methods Based on the ground concentration backstepping method, the xylene emission was calculated and the health protection distance was calculated. As a result, the annual production scale of 3 000 ~ 7 000 MW boiler manufacturers, where the average wind speed in recent 5 years <2,2 ~ 4,> 4 m / s, the proposed standard of health protection distance were 300,200, 200 m. Conclusions According to the field investigation and analysis, xylene, which is not organized discharge, is the main factor that affects the health protection distance of boiler manufacturers. Based on this, the feasible health protection distance of boiler manufacturers can be calculated.