一、引言设置在核电汽轮机高压缸和低压缸之间的汽水分离再热器是核电站的关键部件。由高压缸膨胀作功后的饱和蒸汽必须经过汽水分离再热器去湿、过热后才能进入低压缸。这样能降低低压缸的排汽湿度,改善末几级叶片的腐蚀,并提高机组的热效率。为了控制进入低压缸的蒸汽温度,设置了一套较为复 I. INTRODUCTION The steam and water reheater set up between the high-pressure cylinder and the low-pressure cylinder of a nuclear power turbine is a key component of a nuclear power plant. The saturated steam expanded by the high-pressure cylinder must be dehumidified by the steam-water separation and reheater to enter the low-pressure cylinder after overheating. This will reduce the low pressure cylinder exhaust humidity, improve the last few leaves of the corrosion, and improve the thermal efficiency of the unit. In order to control the temperature of the steam entering the low pressure cylinder, a set of more complex set