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传统的检测方法受外界因素和仪器设备的影响,检测结果的可靠性差。介绍了国内外对油罐罐底渗漏的检测方法。间接检测法是检测油罐排水沟水面是否漂浮油膜,也称油膜检测法,概述了相对密度差检测、高频电流检测、反光率检测、电阻检测、静电电容检测等间接检测法的原理和特征;直接检测法是利用检测元件直接与泄漏液体接触检测其物理、化学特性的变化,介绍了导电性粉体元件检测法、电缆检测法和光导纤维检测法。
The traditional detection methods are affected by external factors and equipment, and the reliability of the test results is poor. The detection methods of tank bottom leakage at home and abroad are introduced. Indirect testing is to test whether the surface of oil tank drainage is floating oil film, also known as oil film detection method, summarizes the principles and characteristics of indirect detection methods such as relative density difference detection, high frequency current detection, reflectance detection, resistance detection, electrostatic capacitance detection ; Direct detection method is to use the detection element in direct contact with leaking liquid to detect changes in its physical and chemical properties. The conductive powder element detection method, the cable detection method and the optical fiber detection method are introduced.