To effectively operate a cooler for defrosting by providing a heat exchanger for heating in a refrigerant circuit, and also providing a route for making hot brine to flow to a heat reclaimer and another route to the cooler when the cooler is operated for defrosting.
A brine cooling system has a refrigerant circuit 10, a brine circuit 20, and a hot-brine circuit 30. In the refrigerant circuit 10, a heat exchanger 16 for heating, etc., having a heating flow passage 16a for passing the high-temperature refrigerant of a high-pressure side route are formed. In the hot-brine circuit 30, the brine heating flow passage 16b of the heat exchanger 16 which is paired with the heating flow passage 16a of the refrigerant circuit 10, a heat reclaim circulating route 34 for circularity supplying hot brine to the coil of a heat reclaimer 33, and a cooler defrosting route 33 for circularly supplying the hot brine to the cooler 41 are formed. Therefore, the cooler 41 can be defrosted in a short time by efficiently operating the cooler 41.
YOSHII HIROSHI
SHIRAI KATSUMI
Next Patent: METHOD OF DEFROSTING FOR BRINE COOLING SYSTEM