COLD HEAT SOURCE SYSTEM

PROBLEM TO BE SOLVED: To provide a technique capable of realizing proper energy mixing by implementing an operation of another cold heat source device with priority over a waste heat/fuel combination operation by a first cold heat source device, in a cold heat source system including the first cold heat source device implementing a waste heat single operation or the waste heat/fuel combination operation.SOLUTION: A cold heat source system includes one or a plurality of first cold heat source devices, one or a plurality of second cold heat source devices independent from the first cold heat source devices, a cold water pipe connecting the first and second cold heat source devices in parallel to supply cold water from the first cold heat source devices and the second cold heat source devices to a load, and a control device for controlling amounts of going cold water and returning cold water in mixing a part of the going cold water supplied to the load from the first cold heat source device with the returning cold water returning to the first cold heat source device, or controlling a circulation amount of cold water in the first cold heat source devices so that an outlet-side water temperature, which is a temperature of cold water at the cold water outlet side of the first cold heat source device, becomes equal to or lower than a predetermined temperature lower than a set value of the first outlet-side water temperature.SELECTED DRAWING: Figure 4 【課題】廃熱単独運転又は廃熱・燃料併用運転を行う第１の冷熱源装置を含む冷熱源システムにおいて、第１の冷熱源装置による廃熱・燃料併用運転よりも他の冷熱源装置の運転を優先して適切なエネルギーミックスを実現する技術を提供する。【解決手段】１台又は複数台の第１の冷熱源装置と、前記第１の冷熱源装置とは別の１台又は複数台の第２の冷熱源装置と、前記第１，第２の冷熱源装置を並列に接続し、第１の冷熱源装置及び前記第２の冷熱源装置からの冷水を負荷へ供給する冷水配管と、第１の冷熱源装置の冷水出口側における冷水の温度である出口側水温が、第１の出口側水温の設定値よりも低い第１の所定温度以下となるように、第１の冷熱源装置から負荷へ供給する往き冷水の一部を第１の冷熱源装置へ還る還り冷水と混合し、当該往き冷水と還り冷水を混合させる量を制御する、または第１の冷熱源装置の冷水循環量を制御する制御装置とを備える冷熱源システム。【選択図】図４