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可视化技术是一个新的技术领域,应用可视化技术结合模拟实验平台开展了重质气体泄漏扩散实验。对泄漏源不同间距和泄漏区障碍物工况下多泄漏源同时泄漏时的泄漏扩散过程进行了可视化研究,得到了罐区重气泄漏扩散过程的可视化影像。结果表明:可视化研究较好地展现了罐区重质气体泄漏扩散的全过程;多源泄漏的间距越大,扩散越快,范围越广;泄漏源靠的越近,其中间区域越容易形成重气高浓度区,危害越大;重质气体泄漏扩散至障碍物时,扩散行为会发生变化,在障碍物前后会形成高浓度区,并沿着障碍物壁面慢慢上升直至稀释成中性气体,危险性减小。
Visualization technology is a new technology field. The application of visualization technology and simulation experiment platform to carry out heavy gas leakage and diffusion experiments. The leakage and diffusion process of multiple leakage sources with different spacing and different leakage conditions in the leakage area were studied visually. The visual image of leakage and diffusion of heavy gas in the tank area was obtained. The results show that the visualization shows the whole process of leakage and diffusion of heavy gas in the tank area well. The bigger the distance between multiple sources is, the faster the diffusion is, and the wider the range is. The closer the leakage source is, the easier the intermediate area is formed High concentration of heavy gas area, the greater the harm; heavy gas leakage spread to obstacles, the diffusion behavior will change, before and after the formation of high concentrations of obstacles in the area, and slowly along the walls of obstacles until diluted into neutral Gas, risk reduction.