HOT WATER STORAGE TYPE HEATING APPARATUS

摘要

PROBLEM TO BE SOLVED: To respond to a case that the capacity of a heating means is insufficient for the capacity necessary for heating.

SOLUTION: This heating apparatus comprises a heating means 2 heating hot water in a hot water storage tank 1; a heating circulating circuit 3 connecting the tank 1 to the heating means 2 so that hot water can be circulated; a heating circulation pump 6 provided in the circulating circuit 3; a heat exchanger 9 for heating a secondary side; a heat exchange circulating circuit 10 sharing at least part of the outgoing side of the circulating circuit 3 and connecting the heat exchanger 9 to the heating means 2 so that hot water can be circulated; a passage switching means provided in the branch point between the heating circulating circuit 3 and the heat exchange circulating circuit 10 to switch the circuits so that hot water can be circulated in one of the circulating circuits; a tank return pipe 12 branched from the downstream side of the heat exchanger 9 of the heat exchange circulating circuit 10 to return the heat-exchanged hot water to the tank 1; a heat exchange circulation pump 13 provided on the upstream side from the branch point to the tank return pipe 12 of the heat exchange circulating circuit 10; and a heat exchange-side distribution ratio adjusting means 14 adjusting the distribution quantity of the hot water carried in the circulating circuit 10 to the tank return pipe 12.

COPYRIGHT: (C)2006,JPO&NCIPI