输油管道泄漏检测采用模糊检测系统

输油管道泄漏检测采用模糊检测系统
对于石油产品管道是一种高效，经济的运输手段。然而，与运输相关产品的意外释泄漏相关的风险仍然很高（哥斯达黎加，2001年）。这个问题已经促使了许多的泄漏检测方法的研发，主要是基于过程变量，即，压力，流量，温度，如体积平衡法（埃吕尔，1989），或（Stouffs和Giot，1993年），其中对管道的瞬变流长期重要性突出。在这些方法，质量平衡估算所需的数据来自安装在管道里的流量计算器。通常，两个方程是用于大多数的平衡：一为取得一个快速的反应大泄漏，另外一个获得更详细的（额定流量的0.5％），小泄漏识别反应速度较慢（约3至6小时）。该方法建议在该管道的两端和一个随机的中介点上安装设备。这一理论不支持漏点定位。

Leak detection in petroleum pipelines using a fuzzy system
1. Introduction
Pipeline is an efficient and economic transportation means for petroleum products. However, risks associated with accidental releases of transported product are still high (Costa, 2001). This issue has motivated the development of many methods for leak detection, mainly based on process variables, i.e., pressure, flow rate and temperature, such as the volume balance method (Ellul, 1989), or (Stouffs and Giot, 1993), where the importance of packing term in the transient flow is highlighted. In these approaches, data for the estimate of the mass balance are obtained from flow calculators installed in the pipelines. Usually, two equations are used for the mass balance: a more simplified one for the purpose of obtaining a rapid response to large leakages and another more detailed one to obtain slower

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