The design of turbulator air preheater with finned tube and that with optic tube as well as its application in petrochemical works were recommended.

介绍了扰流空气预热器及光扰流空气预热器设计以及石油化工厂中应用情况。

The turbulator can be used to improve the centralization of the casing strings, to allow the fluid to form spiral flow, as well as to improve the displacement efficiency.

使用旋流扶正器既可提高居中度,又可对流体进行导流而形成螺旋流,还可以提高环空水泥浆对泥浆顶替效率。