摘要
以湖北省公路局应城沥青供应站储存罐沥青烟排放源为研究对象 ,用实验室模拟实验解决了低温和高温储存罐沥青烟自由排放速率过低难以测试的困难 ,从而确定了源强 ;将高、低温储存罐排放源综合成点源 ,用高斯模型计算了下风向沥青烟最大浓度及其出现的距离 ,发现最大浓度仍远低于保护农作物沥青烟浓度限值 ,提出了进一步严格沥青烟浓度限值的建议 .另外 ,对高温输出罐的沥青烟控制装置——等离子体搅拌器进行了费 -效论证分析 ,其效费比达 1 .2 9.
This is a case study about a simulation experiment on asphalt smoke emission source at an asphalt supply station for freeway construction located in Yingcheng city Hubei province. Because of very low free emission rate of asphalt smoke from the outlet ports at the top of asphalt store tanks, it is very hard to sample asphalt smoke concentration for calculation of source intensity. To counter this problem, a simulation experiment is designed in terms of sets of asphalt -loaded glasses put in a temperature and time controlled oven, which shows the evaporation rate of asphalt smoke. By treating the two kinds of source as a point one, and using Gaussian Model, the paper calculates the maximum concentration and the distance where it will occur, which finds that the maximum concentration of asphalt smoke is far lower than its limit of asphalt smoke for prevention of crop plants laid down by the state. Therefore, suggestion of more strict limit is put forward. In addition, a cost-benefit analysis for an asphalt smoke decomposition installation, i.e., a plasma stirring equipment installed at the top of the high temperature tank, is conducted in this paper. It concludes that the ratio of profit vs cost is 1.29 that implies the equipment is technically feasible and economically obvious for wide application.
出处
《武汉理工大学学报（交通科学与工程版）》
2005年第1期41-44,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
湖北省交通厅科研项目资助 (批准号 :[1999] 2 2 6)
关键词
高速公路建设
沥青供应站
沥青烟
模拟实验
控制装置
费-效分析
freeway construction
asphalt supply station
asphalt smoke
simulation experiment
control equipment
cost-benefit analysis
