分析了半再生重整装置二段混氢换热器膨胀节失效破裂的原因。
Reason of invalidation failure was analyzed on expansion joint of second stage exchanger of mixture hydrogen in semi-regenerative reformer.
设计单管程浮头式换热器时,为避免较大的温差应力,在壳程设计压力较大的状况下,常采用内置膨胀节的形式。
Internal expansion joint shall be adopted to single tube side float head heat exchanger for avoiding from large temperature difference stress, when design pressure on shell side is larger.
当壳体与板束温差较大时,笔者通过对产品开发的生产实践,提出解决板壳式换热器要否设置膨胀节的类似判定方法。
Through the practice of developing the products, some experience is available which can be used to determine in which case the expansion joint is necessary in plate-shell exchangers.
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