目前各国在役管道存在的老化及腐蚀等问题对人民生命财产安全构成了潜在的危害.如何及时准确地检测管道泄漏现象的发生,对管道安全运行及人民群众的生命财产安全具有重要意义.采用有限容积法,建立三维管道泄漏方程,分析了不同输送速度及泄漏孔径对泄漏后管内流场影响.研究发现:输送速度和泄漏孔径对管内压强、局部高压区、泄漏量、泄漏质量百分比的影响相反.管内压强和流量变化特性为高科技管道检测泄漏技术提供了可能性.%Aging and corrosion problems of many countries'pipeline in servicing have potential hazards to peoples life and property security. Measures to test pipeline leak happens timely and accurately has important significances to pipe safe operation and the people's life and property security. Using the finite volume of pipeline leakage, the article established 3d equation, analyzed the effection of the pipe flow field. Study found: transportation speed and leak aperture have different effects on pipe pressure、local high -pressure zone、leakage、leakage quality percentage. Pipe pressure and flux variation characteristics make high - tech pipeline detection leakage technology possible.
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