FACILITY AND METHOD OF PRODUCING COLD WATER

摘要

PROBLEM TO BE SOLVED: To provide a facility and method of producing cooling water promoting reduction in energy consumption.

SOLUTION: This facility for producing cold water includes: a cooling tower cooling water and cold water within a built-in heat exchanger; a refrigerating machine receiving cold of the cooling water in the cooling tower; a refrigerating machine operation line circulating the cooling water in the cooling tower in a cooling water system of the refrigerating machine and circulating the cold water of the refrigerating machine in a cold water system on the load side; a free cooling operation line circulating the cooling water in the cooling tower and circulating the cold water of the heat exchanger in the cold water system on the load side; a cooling water pump arranged in the cooling water system and circulating the cooling water; an operation line change-over valve switching between the both operation lines; a sensor measuring outside air and the operating state of the facility; and a control section controlling the change-over valve based on the measurement value by the sensor and operating the cooling water pump at a flow rate corresponding to the switched operation line.

COPYRIGHT: (C)2012,JPO&INPIT