中頻爐的冷卻水是為了緩解中頻爐在工作過程中產生的熱量,帶動設備和周圍溫度上升,如果不及時冷卻可能會對設備性能和中頻電爐的功率產生影響,甚至還會燒壞設備,所以中頻爐冷卻水的作用十分重要。那么大家清楚中頻爐冷卻水水溫要求是多少嗎?
The cooling water of the intermediate frequency furnace is used to alleviate the heat generated during its operation, drive the equipment and surrounding temperature to rise. If not cooled in a timely manner, it may affect the performance of the equipment and the power of the intermediate frequency furnace, and even burn the equipment. Therefore, the role of the intermediate frequency furnace cooling water is very important. So, are you clear about the requirements for the cooling water temperature of the intermediate frequency furnace?
一、中頻爐冷卻水水溫要求
1、 Requirements for cooling water temperature of intermediate frequency furnace
1、水溫要求:中頻爐冷卻水的進水溫度要保持在5~30℃,出水溫度應控制在30-40℃,出水溫度低于55℃。冷卻水溫度過低會出現結露現象,水溫超過55℃則失去冷卻能力。為了節約用水,通常采用循環冷卻系統。
1. Water temperature requirements: The inlet temperature of the cooling water for the intermediate frequency furnace should be maintained at 5-30 ℃, the outlet temperature should be controlled at 30-40 ℃, and the outlet temperature should be below 55 ℃. If the temperature of the cooling water is too low, condensation will occur, and if the water temperature exceeds 55 ℃, the cooling capacity will be lost. In order to save water, a circulating cooling system is usually used.
2、可控硅變頻器參數要求:冷卻水壓力應穩定地保持在0.15MPa,水質應進行軟化處理,硬度小于P8,電阻在20kΩ以上,水中不溶解物小于0.03mg/L,水量8 噸/時,出水管內徑大于3英寸。
2. Parameter requirements for controllable silicon frequency converter: The cooling water pressure should be stably maintained at 0.15MPa, the water quality should be softened, the hardness should be less than P8, the resistance should be above 20k Ω, the insoluble substance in water should be less than 0.03mg/L, the water volume should be 8 tons/hour, and the inner diameter of the outlet pipe should be greater than 3 inches.
中頻爐
kgps
二、中頻爐冷卻水水溫過高的危害
2、 The Harm of Excessive Cooling Water Temperature in Medium Frequency Furnace
有數據指出,中頻爐線圈和冷卻水溫度升高25℃,其耗電量和電阻比之前增加10.75%,每小時耗電量增加10.8kW?h,占系統總功率的2.7%。負載電流通過供電線圈和水電纜時,線圈和水電纜發熱導致溫度不斷升高,電阻也會增大,電阻增大的同時發熱量增幅,又進一步使溫度升高,這樣供電線路升溫和電阻變化形成惡性循環,所以需要通過冷卻水對線圈進行降溫同時控制冷卻水的溫度保障持續降溫的作用。冷卻水過熱不僅會影響中頻爐功率嚴重時可能會出現燒壞設備的情況,那么該如何解決?
There is data indicating that an increase of 25 ℃ in the temperature of the coil and cooling water of the intermediate frequency furnace results in an increase of 10.75% in power consumption and resistance compared to before, and an increase of 10.8kW in power consumption per hour? h. Accounting for 2.7% of the total system power. When the load current passes through the power supply coil and water cable, the heating of the coil and water cable causes the temperature to continuously increase, and the resistance will also increase. As the resistance increases, the heat generated will increase, further causing the temperature to rise. This creates a vicious cycle of power supply line heating and resistance changes. Therefore, it is necessary to use cooling water to cool the coil while controlling the temperature of the cooling water to ensure continuous cooling. Overheating of cooling water not only affects the power of the intermediate frequency furnace, but also may cause equipment damage. How can we solve this problem?