焊缝对管道内涂层减阻效果影响的研究

Study on Weld to Influence of Pipe Internal Coating Friction Resistance Reduction Effect

通过对减阻涂层管、普通涂层管及无涂层工业管内焊缝的局部阻力进行试验研究 ,结果表明 :因焊缝产生的压降与其沿程压降相比 ,其数值是很小的 ,从经济、实用角度而言 ,管道内壁涂层的确是一个有效的方法。

The result shows that pressure fall data is very small compare the pressure fall produced by weld with that of its along route through test study to inside weld part resistance of friction resistance pipe,ordinary coating pipe and non coating industry pipe.It is an effective method for pipe internal coating from the view of economy and practicality.