燃气气罩扬克纸机的节能实例

Sharing of Energy-Saving Cases of NG Hood Yankee Paper Machine

纸机的烘干部能耗占比较高,本文通过燃气气罩的风平衡优化和余热回收技术,降低气罩的排风量,利用冷凝水的废热来预热新风,并利用排气的废热来提高纸机的系统水温,将吨纸天然气消耗量降低了21.9m^(3),每年节约燃气费用300多万元,可减少二氧化碳排放2135.2t。

The energy consumption of the dryer of paper machine is relatively high.In this paper,through the air balance optimization and waste heat recovery technology of the gas hood,the exhaust air volume of the hood is reduced,the waste heat of condensate water is used to preheat the fresh air,and the waste heat of exhaust gas is used to improve the process water temperature of the paper machine,thus reducing the natural gas consumption per ton of paper by 21.9 cubic meters,saving more than 3 million yuan of gas costs annually,and reducing carbon dioxide emissions by 2135.2 tons.