常见有毒化学品泄漏事故模型及救援警戒区的确定

运用连续点源扩散模型,讨论常见有毒化学品泄露事故在不同大气条件下的成灾模型,对距泄漏点一定距离处的有害物质浓度和不同伤害剂量的区域进行了估算,进而探讨有毒化学品泄露事故发生后的应急救援警戒区确定.所提出的泄露事故模型能够为消防部队有效的执行应急救援提供理论依据.

Modeling on the leakage of frequently used toxic chemicals and determination of the zone of emergent rescue

The diffusion model of continuous point sources has been selected to analyse the behaviour of the leaking of the frequently used toxic chemicals,and evaluate the hazardous zone after,under the conditions of varous atmospheres.The toxic concentrations and poisonous zones have been estimated at the basis of different distance to the leaking source.Then,the model is used to determine the emergent rescue zones after their leakage.Finally,this paper puts forward a leaking accident developing model that can be a theoretical guidance for fire brigade to carry out their rescue efficiently.