The paper presents status of failure incidents of PWR steam generator heat transfer tubes in Japan as well as causes of failure and measures used for protection.
本文介绍日本压水堆核电站蒸汽发生器传热管破损情况，破损原因和防止传热管破损的措施。
The model simulates sodium flow in the steam generator as quasi-continuum. The model USES volume porosity, area permeability and distributed resistance to model the tubes and support plates.
假设为大孔隙多孔介质，模拟钠在蒸汽发生器内的流动，引入体积孔隙率，面渗透率和分布阻力来模拟管束、支撑板对钠流动的扰动。
The thermal stresses in condenser tubes directly affect the tightness between cooling tubes and tubes plate, and affect the safety of steam generator.
凝汽器冷却管热应力直接影响到冷却管与管板之间连接的密封性，从而影响到蒸汽发生器的安全运行。
For production of final 800 alloy U-shaped steel tubes used for steam generator heat-conduction, surface shot-blast treatment is a must.
表面喷丸是生产800合金u型蒸汽发生器传热管成品必不可少的处理工序。
The experimental results reveal the difference between helical tubes and straight tubes on flow induced vibration, and the design for 200MW HTR steam generator avoids large amplitude vibration.
实验结果表明，螺旋管管束的流体诱发振动响应与直管相比存在一定的差别； 200MW高温气冷堆蒸汽发生器的设计避免了管束的大振幅振动。
In order to test the validity of the method, the inverted U-tubes break accident of Steam Generator and etc are used as examples, and many simulation experiments are performed.
为了验证该方法的有效性，以核电厂设备蒸汽发生器u形管破裂等故障为例，进行了仿真实验研究。
In order to test the validity of the method, the inverted U-tubes break accident of Steam Generator and etc are used as examples, and many simulation experiments are performed.
为了验证该方法的有效性，以核电厂设备蒸汽发生器u形管破裂等故障为例，进行了仿真实验研究。
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