输气管道中缓蚀剂雾化浓度分布及加注量计算

利用液体雾化流动理论，对缓蚀剂在天然气管道内的雾化过程，雾化浓度分布及其保护管道的机理进行了研究。研究中发现，缓蚀剂的雾化在喷流状态下最为充分，且可形成均匀的保护膜；而雾化角、雾化细度、雾化均匀度和浓度分布等评定缓蚀剂雾化质量的，又可以用来检验管道是否得到了有效保护。

Mist Concentration Distribution of Inhibitor and its Jetting Volume Calculation in Natural Gas Pipeline

The mist process of inhibitor in pipeline,the mist concentration distribution and the mechanism of protecting pipeline have been researched by means of using the mist theory of liquid in the paper. The researchers found out that the inhibitor's mist was the most sufficient in the spraying condition,which could form a homogeneous film;while the quality evaluation indices on mist angle,mist fineness,mist homogeneity and concentration distribution could also prove whether the pipeline was effectively protected or not. The above parameters related to the average grain size of misted inhibitor,particle size distribution and inhibitor concentration distributed within pipe have been calculated. Because the common gas pipeline has large diameter, and the gas generally flows in turbulent flow,the paper puts forward the equations to deal with the jetting volume of inhibitor and the minimum jetting volume which protects pipeline based on the e-conomical principle. The field measured results show that the calculated jetting volume of inhibitor is quite closed to the actual jetting volume,which proves the equations given in the paper to be reasonable and use- ful.