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分析循环流化床锅炉电厂烟风系统设计原则和设计实例,指出其设计优化趋势。为了降低厂用电率,应对工艺过程参数进行分析和量化,确定风源和设备,通过调研,合理设计参数,避免过大的余量。采用液力耦合器和变频器的变速调节代替节流调节,是降低烟风阻力损失的有效方法。现阶段推荐采用液力耦合器调节。从源头上采取措施非常重要。尽量减少、取消不必要的风机。在锅炉设计时,应合理选取部件结构,从根本上降低送风阻力损失。
The design principles and design examples of flue gas system in CFB boiler power plant are analyzed, and the design optimization trend is pointed out. In order to reduce the rate of plant electricity, the process parameters should be analyzed and quantified to determine the source of air and equipment, through research, reasonable design parameters to avoid excessive margin. The use of hydraulic coupler and variable speed drive instead of throttling regulation, is to reduce the drag of wind resistance effective method. At this stage recommended hydraulic coupler adjustment. It is very important to take measures from the source. Minimize, eliminate unnecessary fan. When the boiler is designed, the structure of the components should be selected reasonably to fundamentally reduce the resistance loss of the air supply.