FAILURE INVESTIGATION - VISBREAKER FURNACE TUBE RUPTURES

机译：故障调查-VISBREAKER炉管破裂

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Significant damage was inflicted on a Visbreaker furnace following power (and backup) failure which, in turn led to tube rupture and a large fire in the furnace firebox. Investigations dealing with the causes of tube ruptures are described in this paper. Included are inspection histories, tools used and findings of creep and fatigue caused by overpressure and overheating during the incident. Metal loss was caused by combinations of sulphur corrosion and thermal fatigue arising during carburisaiton. Conclusions regarding damage mechanisms and recommendations on alternatives for coke removal, the use of new technology for 100% tube wall thickness/ovality and skinpoint temperature measurement are given.

机译：在断电（和备用）后，Visbreaker熔炉遭受了重大损坏，进而导致炉管破裂和熔炉火箱中的大火。本文介绍了有关管破裂原因的调查研究。其中包括检查历史记录，使用的工具以及在事件发生期间因过压和过热导致的蠕变和疲劳的发现。金属损失是由于在化硫过程中产生的硫腐蚀和热疲劳共同引起的。给出了有关损坏机理的结论，并提出了去除焦炭的替代方法的建议，使用新技术进行100％的管壁厚度/椭圆度和结点温度测量的方法。

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来源
《Sixth International Colloquium on Ageing of Materials and Methods for the Assessment of Lifetimes of Engineering Plant, Apr 30-May 4, 2001, Cape Town/South Africa》|2001年|p.341-352|共12页
会议地点 South Africa(ZA);South Africa(ZA)
作者
A C Heimbold;
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作者单位

Caltex Refinery, P O Box 13, Milnerton - 7534, South Africa;

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会议组织
原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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FAILURE INVESTIGATION - VISBREAKER FURNACE TUBE RUPTURES

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