采用了瞬态负压波法、流量输差法和压力流量综合法等多种泄漏诊断方法。
Several leak diagnosis methods such as instantaneous negative pressure wave, flow-lack, and hybrid diagnostic method were used.
分析了热油输送管道沿程瞬态负压波传播速度的变化，采取两种搜索方法数值积分求解泄漏点位置。
The velocity change of instantaneous negative pressure wave along the pipeline is analyzed when hot oil is transported. Two searching methods are applied to locate leakage through numerical integral.
针对此问题，采用了输差法进行泄漏的检测与报警、瞬态负压波法与稳态相关时延分析法相结合进行泄漏点的实时定位技术。
It is based on the measuring the difference between the input and autput of the pipeline and by using the combination of the WSV and the SRDA to locate the leakage.
利用多尺度小波变换，把管道泄漏产生的负压波信号作为瞬态信号，来识别管道的局部泄漏特征。
Taking the negative pressure wave produced by pipeline leakage as a transient signal, the multi scale wavelet transform can be utilized to identify the pipeline leakage signal in local.
当管道某处突然发生泄漏时，泄漏处将出现瞬态压力突降，形成一个负压波，并以一定的速度向管道上、下游两端传播。
When there is a leak point in the pipeline, the pressure is fallen and the negative pressure wave occurs at once.
根据定义的负压波反射系数关系式和瞬态压力响应图，应用行波计算方法得到泄漏点的全部信息（泄漏流量和位置）。
The full information(leak flow and location) of leak point is obtained applying the analysis of transient pressure plot and formula of negative pressure reflectance.
根据定义的负压波反射系数关系式和瞬态压力响应图，应用行波计算方法得到泄漏点的全部信息（泄漏流量和位置）。
The full information(leak flow and location) of leak point is obtained applying the analysis of transient pressure plot and formula of negative pressure reflectance.
应用推荐