| 摘要 |
<p>PURPOSE:To efficiently utilize thermal energy without wastage, as well as to reduce the thermal loss to the least minimum, by reserving the necessary quantity of hot-water in a hot-water supplier in accordance with the load required to supply hot-water. CONSTITUTION:A plurality of water boiler 1A-1C which are independently operable are juxtaposed between a water feed piping 2 and a hot-water feed piping 3. A residue hot-water detector 24 which closes an automatic open/close valve when the reserved quantity of hot-water is decreased below a predetermined level is provided to each water boiler, at the same time, automatic open/ close valves 9A-9C are provided to the water pipes 10A-10C on the water feeding side or the hot-water supplying side of each water boiler. In the hot- water supplier, the number of operated boilers can be determined in accordance with the required load to supply hot-water, so that more than necessary amount of hot-water will not be reserved in the boiler, and the efficiency in thermal energy can be increased by decreasing the thermal loss. Besides, the residue hot-water in each water boiler can be taken out without wastage, so that, the thermal energy can be utilized efficiently.</p> |
