TERMINAL HOT-WATER SUPPLYING DEVICE IN IMMEDIATE HOT-WATER SUPPLYING SYSTEM

摘要

PURPOSE:To permit to supply hot-water immediately and economically in a central hot-water supplying by a method wherein a control valve, an adjusting valve and a hot-water reserving tank are communicated mutually and systematically. CONSTITUTION:When the control valve 7 (hot-water side valve 5 and water side valve 6) is opened in winter, for example, water of temperature 5 deg.C, stagnated in a hot-water supplying pipe 3, pushes up a non-return valve 11, provided at the lower part of a hot-water reserving tank 15, and flows into the lower part of the tank 15. High-temperature water of 85 deg.C is pushed up to the upper part of the tank 15 and comes out through a hot-water conduit 13. The hot-water is mixed with cold water, comes out through a bypass pipe 19, at primary mixing point 20 and the temperature thereof becomes 45 deg.C. When cold water, whose volume corresponds to the 1/2 of the reserving capacity of the tank 15, flows into the tank 15, high- temperature water comes from a hot-water supplying heat source device 1 to the bypass pipe. In this case, the cold water of about 5 deg.C, delivered from the hot-water conduit 13, is joined with the hot-water of 85 deg.C from the bypass pipe at the primary mixing point 20 and the temperature thereof becomes about 45 deg.C. Accordingly, the hot-water is mixed automatically with the cold water from a water supplying pipeline 4 so as to obtain a predetermined temperature at secondary mixing point 21 in either case if the temperature setting of the adjusting valve 10 is lower than 45 deg.C when the hot-water is used at first.