| 摘要 |
<p>PURPOSE:To heat water in dead water area by circulating it together with circulating water stream and increase the amount of reserving hot-water by interposing a tube to generate convection between the upper and lower parts of the water tank. CONSTITUTION:A flow path 6 of heat medium is provided at the outer peripheral surface of a cylinder 5 for the water tank 1 and a double wall is constituted of a wall 2 and the flow path 6. The flow path 6 is formed so as to envelope the whole periphery of the tank along the wall 2 and the heat medium enters from an entrance port 7 and flows out of an outlet port 8. The heat medium is heated by various kinds of heat sources such as solar heat, boiler or the like. The tube 9 is interposed vertically in said water tank 1 to generate convection between the upper and lower parts of the water tank 1. Water near the bottom plate 4 is heated on the way of rising up along the flow path 6 together with the circulating stream of water.</p> |
