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造纸厂蒸汽用量大,蒸汽管道多,管好用好蒸汽,除了考核用流量计、控制用监控仪以外,能迅速计算某些泄漏损失,也将有利于核算。下面介绍一种查图快速计算蒸汽泄漏损失的方法。计算图中A轴为蒸汽压力[kgf/cm~2](表压);B轴为20℃时煤的热值[kcal/kg];C轴为泄漏孔孔径[时];D轴为煤的损失量[吨];E轴为蒸汽损失量[kg/日],以720小时为1月计。例:某蒸汽管道压力5kgf/cm~2,有一泄漏孔,目测孔经约2mm(0.08时),因检修周期关系,这小孔修补需隔30天才能进行,问在这段时间泄漏蒸汽多少?折合成多少吨煤?已知煤的热值为343.92kcal/kg.
Paper mill steam usage, steam pipe more, good use of good steam tube, in addition to assessment with the flow meter, control monitor, can calculate some of the leakage loss quickly, will also be conducive to accounting. Here’s a quick way to find out steam leak losses. The A axis in the calculation diagram is the steam pressure [kgf / cm ~ 2] (gauge pressure); the B axis is the calorific value of coal [kcal / kg] at 20 ° C; the C axis is the leak hole diameter [ Of the loss [T]; E axis steam loss [kg / day] to 720 hours for the month of January. Example: A steam pipe pressure 5kgf / cm ~ 2, a leak hole, visual hole by about 2mm (0.08 hours), due to maintenance cycle, the small hole repair takes 30 days to carry out, asked at this time how much steam leakage How many tons of coal are converted? The calorific value of coal is 343.92 kcal / kg.