洞库油罐溢油在坑道中的流动规律

为确定机动封围设施技术参数,开展洞库油罐溢油在坑道中流动规律的研究。结合明渠非恒定流理论,建立了描述油料在洞库坑道中流动特性的物理模型,采用特征线法给出了在给定初始条件和边界条件下该模型的数值解,得到了泄漏油料在坑道中的深度及流量随泄漏时间的变化规律,同时研究了不同泄漏流量对油料流动的影响。泄漏流量越大,其在坑道中流动的流量越大,油料的深度越大,同时油料流动的距离越长;离泄漏油罐越远,不同流量下油料的深度和流量差别越小。研究成果为油库溢油机动封围设施的优化设置提供了技术支撑。

Flowing laws of the leaking oil of oil tank in the tunnel of cave storage

To determine the technical parameters of the mobile enclosure facilities, the flowing laws of the leaking oil of oil tank in the tunnel of cave storage were investigated in this paper. Based on the theory of open-channel unsteady flow, a physical model for describing the flowing behaviors of oil in the tunnel of cave storage was developed, and its numerical solution under the given initial conditions and boundary conditions were obtained by means of characteristic line method. The variation laws of the depth and flow rate of the leaking oil in the tunnel over the leaking time were figured out. In addition, the effect of leaking rate on the flow of oil was researched. It is indicated that as the leaking rate increases, the flow rate, depth and flowing distance of leaking oil in the tunnel increase. What’s more, the farther it is from the leaking tank, the less different the depth and flow rate of leaking oil at different flow rates are. The research results provide the technical support for the optimal installation of mobile enclosure facilities used for oil leakage in oil depots.