Threaded pipe for indirect air cooling unit condenser

The utility model comprises a threaded pipe for an indirect air cooling unit condenser. Threads are machined in both the inner surface of a pipe body and the outer surface of the pipe body and are intersect spiral lines, namely, the three-dimensional spiral lines, wherein the three-dimensional spiral lines are formed after three parallel spiral lines rotating in the clockwise direction of the long axis of the pipe body and three parallel spiral lines rotating in the anticlockwise direction intersect with each other. The threaded pipe where the three-dimensional spiral lines are machined is most beneficial for enhancing heat exchange; the advantages of being resistant to scales, being capable of removing scales easily, being resistant to vibration and the like are achieved when the heat exchange effect is greatly improved, resistance in the pipe is reduced, running stress is reduced, maintenance is easy, and the service life is prolonged.