HOT WATER STORAGE TANK
PROBLEM TO BE SOLVED: To provide a hot water storage tank in which the joining part of a vacuum heat insulation material and a polystyrene foam heat insulation material is prevented from floating and the heat retention performance is stabilized to prevent the hot air inside the vacuum heat insulatio...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a hot water storage tank in which the joining part of a vacuum heat insulation material and a polystyrene foam heat insulation material is prevented from floating and the heat retention performance is stabilized to prevent the hot air inside the vacuum heat insulation material from leaking out.SOLUTION: The hot water storage tank includes: a vacuum heat insulation material 3 having a core material 3a arranged between the front and the back surfaces of a film-like exterior material 3b, sealed by heat sealing with the inside thereof in a low vacuum state, and covering the tank 1, wherein the exterior material is bent to the tank 1 side; and a vacuum heat insulation material fixing tool 6 set between the vacuum heat insulation material 3 and the tank 1. The hot water storage tank is characterized in that an adhesive layer 6b is provided between the exterior material 3b of vacuum heat insulation material bent to the tank 1 side and the vacuum heat insulation material fixing tool 6. |
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