| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water supply control system that transfers the heat by a necessary minimum pump discharge pressure, and to provide a control method of the system. <P>SOLUTION: The water supply control system includes: a primary-side pump 7 that circulates primary-side cold/warm water between a heat source 1 and a plurality of heat exchangers 2A, 2B; an inverter 7a controlling the number of rotation of the pump; a plurality of primary-side flow regulating valves V1, V2 regulating flow rates of the primary-side cold/warm water; pressure sensors 10, 11 detecting input and output pressures; a control device 8 that controls opening degrees of the plurality of primary-side flow regulating valves; a plurality of secondary-side pumps 12, 13; a plurality of flow rate sensors F1, F2 for secondary-side cold/warm water; and a plurality of temperature sensors T1 to T4 for measuring temperature. The control device calculates an appropriate flow amount of the primary-side cold/warm water in each heat exchanger based on the heat exchange quantity, calculates an optimal pressure difference of each heat exchanger, identifies a heat exchanger that most requires circulation pumping based on a difference between the optimal pressure difference and an actual pressure difference, and controls the number of revolutions of the pump through the inverter. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
