浅谈压力钢管、波纹管的套管式伸缩节装置在水电厂的应用

Applying Prospect of the Pressure Steel Pipe and Bellows' Telescopic Extension Node Device in Hydropower Plant

文章对传统的压力钢管套管式 (填料式 )伸缩节存在的漏水原因进行了分析 ,并说明了由此造成的检修成本上升。较为详细的介绍了SJTB型压力钢管、波纹管的套管式伸缩节装置的适用范围、选材和结构形式 ,并以龙羊峡水电厂为例做了一些有益的探讨。

The paper analyses the reason of the water leakage phenomenon in the traditional pressure steel pipes telescopic extension node,and explains the rising of the maintenance cost because of this phenomenon.The paper introduces the applicable range,selects material and structure form of the SJTB type pressure steel pipe and bellows telescopic extension node,and makes some beneficial inquiry using Longyangxia hydropower plant as an example.