The failure reason came out through analysis on operation condition in failure tube and related inspection, and the protection method and solution was given.
经过对失效炉管运行状况的分析及相关检测找出了翅片管泄漏的原因，并提出了相应的防护措施。
Base on the analysis about the reason of failure plugging, a new type chemical plugging agent was manufactured by the way of "plugging before net-setting".
在对浅层套管封堵失效原因深入分析的基础上，在“先建网，再封堵”的思路指导下研制了新型堵剂。
Through the comprehensive analysis, the result shows that crack failure reason is embrittlement of the austenite stainless steel at high temperature.
通过综合分析指出对流管发生失效的原因是奥氏体不锈钢长期在高温下工作引起的热脆化开裂。
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