核电站大气核污染扩散预警技术

基于环境保护指挥自动化系统C4ISRE,提出了核电站大气核污染扩散预警方法.首先,构建红沿河核电站"海/陆/空/天一体化"仿真环境.其次,根据核污染扩散想定应用气象数据驱动HYSPLIT4.9模型,模拟大气核污染物输送特征,进而推演模拟各个重点区域的预警应急处置时间.推演结果表明:核污染扩散气团经过71.885 s到达常规岛废液贮存罐厂房;79.306 s扩散至热机修车间和仓库;91.596 s抵达废水处理站和车库;132.267 s扩散至厂界海区边界;655.337 s扩散至烟羽应急区5 km边界;712 s进入黄泥洞村空界;1 240.535 s扩散至烟羽应急区10 km边界;2 527.945 s扩散至长兴岛镇空界;3 468.65 s扩展至烟羽应急区30 km边界.

Warning Technology for Air Nuclear Pollution Diffusion of Nuclear Power Plant

Based on environmental protection automatic command system (C4ISRE)， the early warning technology for air nuclear pollution diffusion of the nuclear power plant was proposed. Firstly， an integration simulation environment of sea， land， sky and space for Hong Yanhe Nuclear Power Plant was constructed. Secondly， nuclear pollution diffusion scenario was set up and the HYSPLIT4.9 model was drove by meteorological data according to the scenario. Then， the atmospheric nuclear pollutant transport characteristics were simulated， and the early warning emergency response times for key areas were simulated and deduced. The deduction results showed that nuclear pollution air mass spreads into the waste storage tank factory building of conventional island after 71.885s， the airspace of heat engine repair shop and warehouse after 79.306s， the airspace of wastewater treatment plant and garage after 91.596s， the airspace of the boundary of the plant boundary and sea after 132.267s， plume boundary of emergency region 5km after 655.337s， the airspace of Wong Tung Village after 712s， plume boundary of emergency region 10km after 1240.535s， the airspace of Changxing Island town after 2527.945s， and plume boundary of emergency region 30km after 3468.65s.