| 摘要 |
<p>PURPOSE:To improve the heat efficiency of all the heat source apparatuses by causing a first load and a second load to correspond to a first heat source apparatus and a second heat source apparatus having a heat efficiency which is lower than that of the first heat source, respectively, and carrying out the shift of heat to the second load when the first heat source has a capacity allantance. CONSTITUTION:When a first heat source apparatus 1 is not fully loaded, heat flows from a pipeline 21 via a three-way valve 15 to a pipeline 16. In this case, a fluid flowing from a header 13 having a pipeline 14 flows to a pipeline 16 through a three-way valve 15. Thus, heat from the first heat source apparatus 1 is fed to a first load 5, and shifted to a second load. The flow quantity of the fluid flowing from a pipeline 21 to the pipeline 16 in the three-way valve 15 is controlled by the opening degree of the three-way valve 15. Therefore, the first heat source apparatus 1 is operated at a full load or in the vicinity of the full load. Accordingly, the improvement in the heat efficiency as a whole in a state where both the first heat source apparatus and the second heat source apparatus are being operated can be achieved.</p> |
