Forecasting-early warning and emergency control method for moving chemical risk source

Abstract

The invention discloses a forecasting-early warning and emergency control method for a moving chemical risk source, belonging to the field of hazard control. The method comprises the following steps: (1) determining the variety and amount of the materials of the moving risk source and the geographic coordinates of a protected object; (2) obtaining the wind field of an object risk simulation range and the forecasting results of the turbulent flow rate; (3) obtaining the space-time distribution of the endangering degree on the protected object; (4) obtaining a forecast-early warning and control scheme of the moving chemical risk source based on a GIS platform; and (5) releasing in real time and on line. The forecasting-early warning and emergency control method can obtain the space-time distribution of the endangering degree of the moving chemical risk source on the protected target in a short time and releases the space-time distribution in real time and on line.

Description

Technical field [0001] The invention relates to a dangerous source control method, in particular to a mobile chemical risk source prediction, early warning and emergency control method, belonging to the field of dangerous source control. Background technique [0002] Tens of thousands of tons of toxic and hazardous chemicals are produced, stored and transported every day in all countries in the world, and chemical accidents occur from time to time. A large part of these chemical accidents came from the transportation of toxic and hazardous chemicals. For example, on March 29, 2005, a major chemical accident involving liquid chlorine leakage occurred on the Huai'an section of the Beijing-Shanghai Expressway, resulting in 31 deaths, 436 poisoning and hospitalization, and 10,500 people. In the emergency evacuation, a large number of poultry and livestock died, and the direct property loss was more than 29 million yuan. In addition to the regular transportation of toxic and hazardou...

AI Technical Summary

Problems solved by technology

For example, if the calculation area is divided into 100×100 grids, there are thousands of situations that need to be calculated, and the calculation of the predicted out-diffusion of the time flow field in each situation usually takes a few minutes, so it is necessary to calculate the protection of mobile risk sources The distribution of target hazards takes more than 10 days, while the time for flow field forecasting is usually within 3 days. Obviously, existing technologies cannot predict, warn and control mobile risk sources