| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation method of a cooling system capable of reducing an operation cost.SOLUTION: In an operation method of a cooling system provided with an open type cooling tower 1 and a refrigerating machine 2, the cooling system has a circulation line of cooling water which passes through a water feeding line 11 of cooling water, the refrigerating machine and a return line 12 of cooling water from the open type cooling tower and returns to the cooling tower and, further, the open type cooling tower has a makeup water line 16 of cooling water and a draining line 13 of cooling water. When the operation method of the cooling system continues a circulation operation of cooling water, scale accumulated in the circulation line of the cooling water is drained together with a part of the cooling water from the draining line of the cooling water and the cooling water reduced by drainage is replenished from the makeup water line of the cooling water. Therein, as makeup water to be replenished from the makeup water line, water having electric conductivity of 100 μS/cm or less is used.SELECTED DRAWING: Figure 1 |
