| 摘要 |
PURPOSE:To make it easy to protect machines, devices and pipes from filth such as scales by a method wherein the quantity of blown water is adjusted to 1- 2.5% of the quantity of circulation of cooling water. CONSTITUTION:The relationship between the concentration of the cooling water in a circulation system and the quantity of the blown water is such that when the quantity of the blow water increases, the quality of the cooling water comes close to the quality of supply water irrespective of the quantity of the supply water and the rate of concentration of the cooling water decreases. Especially, the above rate of concentration of the cooling water varies greately until the quantity of the blown water comes close to 2% of the quantity of the cooling water. Therefore, it is possible to adjust the rate of concentration of the cooling water to two times that of the blown water by adjusting the quantity of the blow water to about 2% of the quantity of the cooling water. |
