| 摘要 |
<p>PURPOSE: To improve the water quality of hot or chilled water in a water storage tank by providing a circulating passage water-purifier communicating with a circulating passage to improve the water quality of hot or chilled water circulated in the passage. CONSTITUTION: The discharge tube 42 of a circulating passage 4 has a substantially cylindrical mount 43 protruding upward from the bottom 23 of a heating cooler 32 and a circulating passage purifier 8 disposed in a water storage tank 3 at the mount 43. When hot or chilled water in the tank 3 is circulated into the passage 4 by a circulating pump 7, minerals are repeatedly dissolved from mineral sources 84, 85 of the purifier 8 to the hot or chilled water. Thus, the mineral is effectively added to the hot or chilled water in the tank 3 to improve the water quality. Accordingly, the hot or chilled water in the tank is improved in taste or odor and can be supplied as safety for a human body.</p> |
