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结合TCS在新广州白云国际机场供油系统停机坪地下管网泄漏检测中的应用,探讨了适用于国内民航机场停机坪供油管网的泄漏检测方法及实施方案。TCS系统采用压力阶梯法进行泄漏检测,其基本原理:用两个不同的压力连续地对密闭管段加压至两个已设定的相对高、低的压力值,通过比较高、低压力下管段压力值的变化曲线,确定泄漏系数值,进而判断泄漏情况。该系统适用于已建管道,安装、改造费用低;检测周期短,约50 min;检测精度高,可达0.04 L/(h·m3)。(图3,参6)
Combined with the application of TCS in underground pipe network leak detection of new Guangzhou Baiyun International Airport fueling system apron, this paper discusses the leakage detection method and implementation scheme applicable to the oil supply pipe network of domestic civil airport apron. TCS system uses the pressure step method for leak detection, the basic principle: two different pressures continuously pressurized tube closed to two has been set relatively high, low pressure value, through the higher and lower pressure pipe section Pressure value of the curve to determine the value of leakage coefficient, and then determine the leakage. The system is suitable for built pipelines, with low installation and modification costs; short testing cycle of about 50 min; high detection accuracy of up to 0.04 L / (h · m3). (Figure 3, reference 6)