火炬泄放对半潜式平台总体布置方案的影响

Flare Release Effectiveness for General Layout of Semi-Submersible Platform

以南海某深水半潜式平台总体布置为例,对火炬燃烧不同工况进行定义,计算不同工况下的最大泄放量。根据平台操作要求确定该平台对热辐射、高温敏感的感受点。对规范经验公式进行分析,采用Mixed模型综合考虑点源和扩散源原理的修正作用,对火炬长度进行初步的确定。采用通用的Flaresim软件对选定的感受点进行数值模拟,准确计算连续泄放和应急泄放产生的热辐射、高温和噪声水平,综合评价这些参数对半潜式平台总体布置及人员操作的影响,并给出应对缓解措施。

Taken the general layout of a deepwater semi-submersible platform in South China Sea as an example,different operation conditions of the flare boom release are defined,and the maximum release load is calculated under different operation conditions.The sensitive receptors of the platform to heat radiation and high temperature are determined based on operation requirements.The empirical formulae from the rules are assessed,the correction effect of the principle of point source and diffuse source is comprehensively considered by the Mixed model,and the length of flare boom is preliminarily gotten.The levels of thermal radiation,high temperature and noise generated by continuous discharge and emergency discharge are accurately calculated by numerical simulation using Flaresim software at the selected sensitive receptors.The influence of these parameters on the general layout and personnel operation of the semi-submersible platform is comprehensively evaluated,and corresponding mitigation measures are provided.