Compact induced-current heat-generating pipe system and construction incorporating it

摘要

A compact induced-current heat-generating pipe system useful for shorter bodies to be heated, such as small-scale pipelines, consists of at least one set of two or three ferromagnetic pipes (3,4) and an insulated wire (2) passing therethrough and connected to an A.C. source, the respective pipes being electrically connected to each other at both ends (5,6). The thickness t of the pipes has the relationship of 0.5 s ≦ t 2 s to the skin depths of induced A.C. flowing through the pipes. The pipes of each set being brought into close contact with each other and the length of the pipes is 1 Km or shorter. The heat-generating pipes are fastened to a body (a) to be heated with a heat-resistant elastic material (11) placed therebetween.