SHAPED SPIRAL WOUND PIPE

• Main Authors: CHEN, YIQING, CHEN, SHI, XU, XINSU, CHAN, KOK, PENG
• Format: Patent
• Language: English; French; German
• Published: 13.01.2010
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The present invention relates to a shaped spiral wound pipe, which is multilayer formed by winding two kinds of shapes continuously, wherein Shape A have a T-shaped rib and a T -shaped notch at the edge thereof respectively, and have spaced grooves and ridges between the T -shaped rib and the T -shaped notch The adjacent T -shaped rib and T -shaped notch engage lockingly as the spiral wound pipe is shaped, and the grooves and ridges form spiral grooves and/or ridges. The shaped spiral wound pipe features that Shape B engage with the Shape A, wherein the Shape A is the base layer of the spiral wound pipe, and the Shape B make up of at least one overlapping reinforcing layer, and the overlapping reinforcing layer have spiral grooves and ridges so as to engage with Shape A or Shape B further. The Shape B have a ridge or a groove, or have a ridge and a groove on the upper and lower end thereof respectively , and the grooves or ridges engage lockingly with the spiral grooves or ridges formed by winding the Shape A.