| 摘要 |
PURPOSE:To supply high pressure hot water of stabled temperature and flow quantity in a small space by constructing a device of a hot water storage tank, heating means and a pressure pump. CONSTITUTION:Discharge pressure from a cock 11 is set at the comparison standard of a comparator 19. When water is stored in a hot water storage tank 1, an operating circuit 22 which opens or closes a valve gives an instruction to a three- way valve 6 to turn to the first mode by the signal of a temperature detector 23, high temperature water in a boiler 5 flows to a heat exchanger 4 and heats water in the hot water storage tank 1, and when the water is heated to an objective temperature, the operating circuit 22 changes the three-way valve 6 to the second mode by the signal of the temperature detector 23 and stops supplying high temperature water and a variable speed pump 7 is driven by a variable speed motor 8 controlled based on the signal of a pressure detector 18 so that discharge pressure may become a set pressure value. The discharge pressure is detected by the detector 18 and compared by the comparator 19 and the variable speed motor 8 is accelerated or decelerated so that the discharge pressure may be kept constant. |
