本文讨论了以往有关低循环倍率锅炉压力稳定性的文献,分析了决定强制循环系统压力稳定性的闭环作用,指出汽水分离器是造成流量稳态偏差(ΔDg/ΔP)及使系统压力趋向不稳定的结构因素;但过热器和汽机的流量特性(ΔP/ΔDg)又为系统提供了一定的稳定性裕度。这些设备的流通能力的计算公式取决于压力变化时蒸汽在通道中的热力学条件。前人文献对此并未给予足够的重 This paper discusses the previous literature on the pressure stability of low-cycle rate boilers and analyzes the closed-loop effect that determines the pressure stability of the forced circulation system. It is pointed out that the steam-liquid separator causes the steady-state flow deviation (ΔDg / ΔP) and the system pressure to be unstable However, the flow characteristics (ΔP / ΔDg) of the superheater and the turbine provide a certain stability margin for the system. The calculation of the flow capacity of these devices depends on the thermodynamic conditions of the steam in the passage as the pressure changes. The previous literature did not give enough weight