炼油、石油化工、制氧工业中,使用列管式换热器较多。制造此类换热器的散热管,目前多采用光滑圆管,但在一些进口设备中采用螺纹管。螺纹管与光管相比,前者对提高散热效率、节约原材料、缩小换热器的体积均优于后者,但由于螺纹管制造困难,未能广泛采用。现就螺纹管的制造谈一点体会。 Refining, petrochemical, oxygen manufacturing industry, the use of more tube heat exchanger. The heat pipe manufacturing such heat exchangers, the current use of smooth round tube, but in some imported equipment using threaded tube. Compared with the light pipe, the former is superior to the latter in terms of improving the heat dissipation efficiency, saving raw materials and reducing the volume of the heat exchanger. However, due to the difficulty in manufacturing the screw pipe, it has not been widely used. Now on the manufacture of threaded pipe to talk about experience.