| 摘要 |
PURPOSE:To make it possible to operate the titled system economically by a method wherein a top controlling type hot water feeder of low input capacity and a hot water storage tank capable of storing separately large and small quantities of hot water are combined with each other to thereby reduce the volume of heat exchange and the loss of rising heat. CONSTITUTION:A hot water storage tank 1 is provided at the upper part thereof with a ball tap 3 which is in direct contact with service water 2 so that a part of the service water is introduced into the lower part of the tank 1 through a water supply pipe 4. Further, an inlet port 5 through which a large quantity of hot water is introduced, an outlet port 6 through which a small quantity of hot water is introduced and an outlet 7 are provided at the lower part, a part above the intermediate section and the upper part, respectively, of the storage tank 1. The outlet port 7 is connected to the inlet port of a heat exchanger 11 provided at a heat source section 10 through a forward hot water supply pipe 13 interposed with a pump 12 and the outlet of the heat exchanger is connected to a three-way changeoever electromagnetic valve 16 by a three-way changeover section 14 through a backward hot water supply pipe 15 or to a hot water outlet cock 18. The heat source section 10 is controlled in accordance with the outputs of thermisters 19 and 20 attached to the storage tank 1 so as to detect the temperatures of the large and small quantities of hot water stored separately in the tank 1. |
