Method for planning escape path in toxic gas leakage state in chemical industry park

Abstract

The invention proposes a method for planning an escape path in a toxic gas leakage state in a chemical industry park. A geographical coordinate of a leakage source point is obtained, a Cartesian coordinate system is established by using the leakage source as an original point, and a chemical industry park is transformed into a node network map; on the basis of an improved Gaussian diffusion model,a large-range harmful gas concentration after gas leakage is calculated; a method for calculating a safe area after toxic gas leakage is put forward based on a gas diffusion range and the national safety standard and an improved method for toxic load calculation is also put forward to realize quantification of the harm on the human body, and an optimal path to the safety area by evacuated peopleis planned by using the toxic load as a weight based on a Dijkstra's shortest path algorithm. According to the invention, proper safety shelters can be planned for people in different areas timely soas to avoid a crowding situation in the shelter. Moreover, the simple calculation method is provided, the operation speed is increased, and an optimal path to the shelter is found time based on quantification of the harm on the human body by the toxic gas.

Description

technical field [0001] The invention belongs to the field of chemical safety planning, relates to automation technology, and in particular relates to a safety path planning optimization method in a chemical park. Background technique [0002] As the mainstream of the development of the chemical industry, the chemical park is a new model for the development of my country's chemical industry in recent years. As a gathering place for chemical plants, while promoting local economic development, chemical parks also have potential safety hazards that cannot be ignored. The types of enterprises in the chemical park are complex, involving many types of chemicals and most of them are flammable, explosive, toxic and harmful. Moreover, there are many people in the chemical park and the population density is high. Once the factory explodes or poisonous gas leaks, it will cause very serious consequences. For chemical industrial parks, poisonous gas leakage is the most likely to occur a...

AI Technical Summary

Problems solved by technology

Once the poisonous gas leaks, it will not only cause direct harm to the human body, but also further cause catastrophic accidents such as explosion and combustion.

In addition, under the influence of meteorological conditions such as wind speed, the scope affected by poisonous gas leakage will continue to expand, which will pose a huge threat to the personal safety of residents in the chemical industry park

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