摘要
依据某企业液氨的实际用量贮存情况,对出现氨气事故性泄漏风险影响区域进行了研究.结果表明,风险区域不仅与氨气泄漏的源强有关,而且与事故状态下的气象条件密切相关,在风速大、不稳定的气象条件下,有害气体泄漏在空气中形成的高质量浓度区多分布在事故源的近距离处;而在静风、稳定的气象条件下,高质量浓度区不仅持续的时间长,而且伴随着空气的稀释作用,随风力的输送向下风向飘移.因此,源强、不同区域的人口密度以及气象条件将是确定风险区域的重要因素.
According to the usage and storage of the ammonia in some plant, the risk of leaking accident is studied in this paper. The result shows that the risky area is closely related with not only the source term, but also the meteorological conditions and the time after the accident; the high concentration zone spread near the leaking point under the unstable and strong winding meteorological conditions, while, the high concentration zone not only lasts for a long time, but also has the transportation function under the stable and weak wind conditions, and it moves down the wind. Therefore, the source term, the population density and the time after accident should be fully considered in the determination of the risky area.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2008年第2期218-223,共6页
Journal of Harbin University of Commerce：Natural Sciences Edition
关键词
泄漏
风险区域
气象
稳定
leaking
risky area
meteorological conditions
stable
