论文部分内容阅读
建立增压流化床燃烧联合循环（PFBC－CC）中采用的典型设备P200型PFB锅炉性能计算模型；并利用该模型对某PFBC系统中的PFB锅炉在4种不同工况的性能进行了计算分析，在系统计算中得到P200型PFB锅炉各受热面如包墙水冷壁、埋管蒸发器和高、低温过热器的换热量Q、传热面积A、床高H等数据，全面分析研究了关键热力性能参加过剩空气系数α、床温Tb、钙硫摩尔比γ等对PFB锅炉性能的影响，进而提出PFB锅炉选择设计参数时应遵循的原则。
The performance calculation model of typical equipment P200 PFB boiler used in PFBC-CC was established. The performance of the PFB boiler in a PFBC system was calculated using four different operating conditions In the system calculation, the data of heat transfer Q, heat transfer area A and bed height H of each heated surface of P200 PFB boiler, such as wall water wall, buried tube evaporator and high and low temperature superheater, are analyzed comprehensively The influence of the key thermodynamic properties on the performance of the PFB boiler, such as the excess air coefficient α, the bed temperature Tb, the calcium and sulfur molar ratio γ, etc., is put forward, and then the principle to be followed when selecting the design parameters of the PFB boiler is proposed.