广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
7期
103-105
,共3页
侯志强%夏茂进%金齐杰%胡载彬
侯誌彊%夏茂進%金齊傑%鬍載彬
후지강%하무진%금제걸%호재빈
天然气%泄漏%扩散规律%CFD%模拟
天然氣%洩漏%擴散規律%CFD%模擬
천연기%설루%확산규률%CFD%모의
natural gas%leak%diffusion regularity%CFD%simulation
天然气管道泄漏后气体的扩散受到管道运行情况和周围环境的影响，气体在泄漏孔处的喷流规律较为复杂，以CFD方法为基础，使用ANSYS软件对泄漏点及其周围环境进行建模，对不同工况进行模拟，分析运行压力、风速和泄漏孔径对气体扩散的影响，从而得到天然气管道泄漏后气体的扩散规律，证明泄漏范围与输送压力和泄漏孔径成正相关，风向和风速分别影响泄漏云的扩散方向和扩散速度。
天然氣管道洩漏後氣體的擴散受到管道運行情況和週圍環境的影響，氣體在洩漏孔處的噴流規律較為複雜，以CFD方法為基礎，使用ANSYS軟件對洩漏點及其週圍環境進行建模，對不同工況進行模擬，分析運行壓力、風速和洩漏孔徑對氣體擴散的影響，從而得到天然氣管道洩漏後氣體的擴散規律，證明洩漏範圍與輸送壓力和洩漏孔徑成正相關，風嚮和風速分彆影響洩漏雲的擴散方嚮和擴散速度。
천연기관도설루후기체적확산수도관도운행정황화주위배경적영향，기체재설루공처적분류규률교위복잡，이CFD방법위기출，사용ANSYS연건대설루점급기주위배경진행건모，대불동공황진행모의，분석운행압력、풍속화설루공경대기체확산적영향，종이득도천연기관도설루후기체적확산규률，증명설루범위여수송압력화설루공경성정상관，풍향화풍속분별영향설루운적확산방향화확산속도。
The diffusion regularity of leakage natural gas is influenced bypipeline operation and surrounding environment.The flow law of gas around the leakage point is very complicated.ANSYS software was used to model the leakage point and the surrounding environment based on CFD method.In order to analyze the influence of pressure, wind speed and leakage aperture for diffusion, variety of conditions were simulated.The diffusion regularity of leakage gas was gained.It was proved that leakage range was closely relative to pressure and leakage aperture, diffusion direction and speed of diffusion cloud was influenced by wind direction and wind speed respectively.
