SELF-PREVENTING/AUTOMATIC REMOVING STRUCTURE FOR ADHESION OF SCALE TO TUBE WALL

摘要

PROBLEM TO BE SOLVED: To provide a new self-preventing/automatic removing structure for adhesion of scale to tube wall without depending upon a scale adhesion preventing process using chemical agent. SOLUTION: This self-preventing/automatic removing structure for the adhesion of scale (filth) to the tube wall is structured of a network flow path part 10A consisting of a first parallel flow path element group 12A and a second parallel flow path element group 12B which are made to each other on the same plane with a continuous state of confluence and diversion, formed on the inner peripheral face of the tube wall 18 using a plurality of projecting parts (a pillar part) 16A. A fluid flows through a duct at a specified or higher velocity, generating a flipflop current to automatically remove the adhering scale.