基于CFD的含硫气田水闪蒸气放空火炬安全性分析

Safety Analysis of Vent Torch for Flash Gas from Sulfur-Bearing Gas Field Water Based on CFD

摘要: 本文采用k-ε湍流模型、EBU-Arrhenius燃烧模型、P-1热辐射模型，模拟研究了风速与闪蒸罐液面高度对火焰热辐射场，尤其是近地面热辐射范围的影响。结果表明：较大风速下，火焰热辐射中心向下偏移，下风向热辐射范围扩大，辐射强度随距离先增后减；随着罐内液位的增高，火焰热辐射范围变大，近地面热辐射强度超过临界值，对人员与环境存在一定的安全风险。

Abstract: In this paper, the k-ε turbulence model, EBU-Arrhenius combustion model and P-1 thermal radiation model were adopted to simulate and study the effects of wind speed and liquid level height of flash tank on the flame thermal radiation field, especially the near-ground thermal radiation range. The results show that under the condition of high wind speed, the center of flame thermal radiation shifts downward, the downwind thermal radiation range expands, and the radiation intensity first increases and then decreases with the increase of distance. With the rise of liquid level in the tank, the flame thermal radiation range becomes larger, and the near-ground thermal radiation intensity exceeds the critical value, which poses certain safety risks to personnel and the environment.