HEAT INSULATION LAYER CONSTRUCTION METHOD FOR LOW TEMPERATURE TANK WALL SURFACE

摘要

PROBLEM TO BE SOLVED: To provide a heat insulation layer construction method for a low temperature tank wall surface capable of attaining outstanding increase of working efficiency by reduction of working labor and improvement in ease of work and constructing a heat insulation layer with sufficient finishing. SOLUTION: A die frame 17 made of wood having thickness equal to heat insulation layer finishing thickness is detachably mounted to a steel liner surface 4 portion corresponding to a lower part of a urethane pouring space 12 by a urethane pouring device 16 of a field foaming type heat insulation layer construction facility A through a magnet 18, and a predetermined heat insulation layer 7 is automatically mechanically constructed at the steel liner surface 4 portion above the die frame 17 made of wood through the field foaming type heat insulation layer construction facility A. Thereafter, the die frame 17 made of wood is removed from the steel liner surface 4, and the lower heat insulation layer having the same thickness as the upper heat insulation layer 7 is continuously constructed on the lower steel liner surface 4 portion including the removal portion. COPYRIGHT: (C)2009,JPO&INPIT