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蒸汽发生器管子管板液压胀接缺陷原因分析及预防措施
Defect Analysis and Preventive Measures of Steam Generator Tube-to-tubesheet Joints Hydraulic Expansion
【摘要】 针对核电机组蒸汽发生器管子-管板接头的制造过程,介绍了液压胀接原理。对未胀合缝隙长度过大(欠胀)、胀过、漏胀、重复胀接,以及造成换热管划痕等典型胀接事故进行原因分析,结合工程经验提出预防和纠正措施。
【Abstract】 The principle of hydraulic expansion is introduced for the manufacturing process of tube-to-tubesheet joints of nuclear power generator steam generators. The causes of the typical expansion joint accidents such as excessive expansion(under-expansion), over-expansion, leakage expansion, repeated expansion joints and scratches on the heat exchange tubes are combined, and prevention and corrective measures are proposed in combination with engineering experience.
- 【文献出处】 机械工程师 ,Mechanical Engineer , 编辑部邮箱 ,2019年07期
- 【分类号】TM623
- 【下载频次】55