DIAGNOSTIC METHOD OF LNG OPEN RACK TYPE VAPORIZER HEAT TRANSFER TUBE PANEL

摘要

PROBLEM TO BE SOLVED: To provide a method of diagnosing existence of defects inside a heat transfer tube of an LNG open rack type vaporizer.;SOLUTION: In diagnosing the existence of defects inside the LNG open rack type vaporizer, a heat transfer tube base part arranged in the nearest position to an upward hole out of sparge tube gas vent holes formed inside a heat transfer tube header is selected as a photographing start section. A damage on the base part is photographed by a micro focus X-ray, and existence of the damage is checked from an image to check an inside defect condition.;COPYRIGHT: (C)2012,JPO&INPIT