| 摘要 |
PROBLEM TO BE SOLVED: To provide a tank heat insulation structure capable of reinforcing a joint portion in a side face of a formed heat insulation material surrounding a tank and of improving heat insulation properties.SOLUTION: A tank heat insulation structure includes first and second formed heat insulation materials 21, 22 covering the first hot water tank in a circumferential direction and each having semi-circular arc shape in a cross section, and a third formed heat insulation material 23 sandwiching and fixing the first and second formed heat insulation materials 21, 22 so as to extend over joint portions of the first and second formed heat insulation materials 21, 22. The third formed heat insulation material 23 in engaged with the first and second formed heat insulation materials 21, 22 in the circumferential and the vertical direction. |
