摘要
针对储气库注采井蒸气云爆炸灾害,采用基于BEGGS阻流模型和注采井无阻流量的井口设施泄漏率计算模型、以及基于高斯烟羽的蒸气云散布模型和蒸气云爆炸TNT当量法,研究了储气库注采井蒸气云爆炸致灾范围确定方法,并分析了井喷模式下不同风速下注采井蒸气云爆炸对建筑物和人的致灾影响范围,为储气库泄漏后果评估与应急预案编制提供了技术支持。
Aiming at the hazards of vapor cloud explosion for injection-withdrawal wells of gas storage, the methods to determine the hazard range of vapor cloud explosion were studied by using the calculation model of leakage rate of wellhead facilities based on BEGGS blocking model and open flow capacity of injection-withdrawal wells, vapor cloud dispersion model based on gauss plume and TNT equivalent method of vapor cloud explosion, and the hazard range of vapor cloud explosion on buildings and people were provided under different wind speeds and blowout. The decision support can be provided for leakage consequences assessment and emergency plan.
引文
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