应用夹点技术对某日产1500t的涂布纸机干燥部热回收网络进行了诊断和优化分析。结果表明,该纸机现有的换热网络存在着较大的节能潜力,通过优化改造可以使纸机干燥部的回收热量由原来的4821.60kJ/s增加到9973.09kJ/s,节约了干燥部2.3%的蒸汽用量,有明显的节能效果。
Pinch technology was applied to diagnose and optimize the heat exchange networks in the drying-section of coating machine with a capacity of 1500 t/d. The result showed that there was a biggish energy-saving potential in the existing heat exchange networks. The amount of heat-saving in new heat exchange networks after optimizational rebuilding increased from 4821.60 kJ/s to 9973.09 kJ/s,fresh steam consumption of drying-section reduced by 2.3%. The energy-saving effect was evident.