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通过测试燃料量、燃料成分、锅炉供风量、供水量、烟气成分、排烟温度等参数,应用注汽锅炉能量分析方法,计算出锅炉的正平衡效率和反平衡效率,误差最大为2.54%。通过对注汽锅炉进行能耗分析,找到影响注汽锅炉效率的主要因素,对发现耗能节点及挖掘节能潜力有重要作用,最终得出产生相同蒸汽量时过热蒸汽锅炉所需的燃料量。锅炉运行过程中,过剩空气系数偏大是影响注汽锅炉效率的主要因素。除了回收烟气中的氮气的热量以及水蒸汽的显热资源外,回收水蒸汽的潜热可使锅炉效率大幅度提高。消耗相同燃料产出的湿饱和蒸汽量比产出的过热蒸汽量更多;产生相同蒸汽量时,产出过热蒸汽所需消耗的燃料量较大。
Through the testing of fuel quantity, fuel composition, boiler air supply volume, water supply volume, flue gas composition, exhaust gas temperature and other parameters, the boiler boiler energy analysis method was used to calculate the boiler positive balance efficiency and anti-balance efficiency, the maximum error was 2.54% . By analyzing the energy consumption of steam injection boilers, finding the main factors affecting the efficiency of steam injection boilers plays an important role in finding energy-consuming nodes and in excavating the potential for energy saving. Finally, the amount of fuel needed to generate the same steam quantity in a superheated steam boiler is obtained. Boiler operation, the excess air coefficient is too large to affect the efficiency of steam boiler main factor. In addition to recovering the heat of nitrogen in the flue gas and the sensible heat source of water vapor, the latent heat of recovery of the water vapor can greatly improve the boiler efficiency. The amount of wet saturated steam that consumes the same fuel output is greater than the amount of superheated steam that is produced; the same amount of steam produces more fuel that is consumed to produce superheated steam.