The New Technique to Insnlate Oil Tanks with Three-In-One Polyurpthane

The article presents the formation of the three-in-one heat insulation structure、its characteristics、major performace targets、and the optimum technology of construction、analysing by examples the economic efficiency of such insulation structure. Then comes the conclusion drawn by the author that this technique will held tackle the difficult problem as to tank wall corrosion by sinking water such as the case in traditional oil tank insulation structure.