| 摘要 |
PURPOSE:To contrive to hold the function in common and miniaturize the structure of the device by a method wherein the heat exchanging between a using fluid and a heating medium is performed in an expanding tank, a part of a hot-water supply circuit is branched to form a circulating channel to be returned to a heat accumulating tank. CONSTITUTION:A heat collecting circuit and a hot-water supply circuit are arranged. The heat collecting circuit is composed of an expanding tank 2, a heating medium circulating pump 3 and a solar heat collector 5, also a heating medium is circulated from the collector 5 to the tank 2. The hot-water circuit supplies a hot-water via a hot-water supply pump 10-1 from a heat accumulating tank 1. A circuit is formed to be circulated to the tank 1 by branching at the discharging side of the hot-water supply pump, then a motor-driven sluice valve 17 for controlling of liquid circulation and a heat exchanger 7 combined with a tank 2 for absorbing of the heat in the tank 2 are arranged at the intermediate location of the circuit. Thereby, the expanding tank for the heating medium can be utilized simultaneously for the heat exchanging chamber, accordingly, the device can be made in compact structure. The one pump can be utilized in com mon for the hot-water supply and the heat exchanging, consequently, the low cost and compact device can be obtained. |
