Detection and Safety Assessment of Viscosity Reducing Tower Pipelines

Journal of Liaoning Petrochemical University ›› 2007, Vol. 27 ›› Issue (1): 53-56.

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Detection and Safety Assessment of Viscosity Reducing Tower Pipelines

1. School of Mechanical Engineering , Liaoning University of Petroleum &Chemical Technology ,Fushun Liaoning 113001 , P. R. China;
2. China Petroleum O f f shore Eng ineering Co. Ltd. ,Liaohe Dev ision , X inglongtai Liaoning 124010, P. R. China

Received:2006-03-31 Published:2007-03-20 Online:2017-07-05

减粘塔管线的检测及安全评定

孔祥军¹ , 张国福¹, 宋天民¹ , 王丽娟¹, 时晓锐² , 肖峰²

1. 辽宁石油化工大学机械工程学院, 辽宁抚顺113001 ;
2. 中国石油海洋工程有限公司辽河事业部, 辽宁兴隆台124010

作者简介:孔祥军(1967 - ), 男, 辽宁法库县, 工程师, 硕士。

Abstract

Abstract:

　The viscosity reducing tower pipeline has been used in a certain petrochemical company for many years, which has already exceeded its design lifetime. Therefore , it is necessary to carry on overall detection and safety assessment. By analyzing the chemistry composition and metallurgical structure locating the pipeline exit and entrance , in the metallurgical structure of materials , partial platelike pearlitic structures have been changed into the globular pearlitic structures. Analyzing the influence of pearlitic spheroidization on machine behavior shows that thermal - intensity capability of 15CrMo steel has been not totally aged. Hardness and wall thickness of pipelines on the spot are detected , and subsequently , the wall thickness of pipelines is theoretically verified. The results show that under the current work condition , the viscosity reducing tower can keep on using.It provides a scientific reference for safety operation of the equipment. At the same time , some usage suggestions were given.

Key words: 　Metallurgical structure , Viscosity reducing tower , Pearlitic structure , Detection , Safety assessment

摘要： 　某石化公司减粘反应塔管线经过多年的运行, 已经超过其设计寿命, 因此有必要对其进行全面的检测和安全评定。通过对管线出入口端节的化学成分及金相组织分析, 发现材料的显微组织有一部分片状珠光体组织已转变成球状珠光体组织, 通过分析珠光体球化对机械性能的影响, 得出15CrMo 钢的热强性能还未完全老化。通过现场对管线硬度及壁厚的检测, 以及随后对管线的壁厚进行的理论校核, 得出减粘反应塔管线在目前的工况条件下, 仍可继续使用。这为该设备的安全运行提供了科学的依据, 同时也提出了一些使用建议。

关键词: 金相组织, 　减粘塔, 　珠光体, 　检测, 　安全评定

KONG Xiang - jun,ZHANG Guo - fu,et al. Detection and Safety Assessment of Viscosity Reducing Tower Pipelines[J]. Journal of Liaoning Petrochemical University, 2007, 27(1): 53-56.

孔祥军, 张国福, 宋天民,等. 减粘塔管线的检测及安全评定[J]. 辽宁石油化工大学学报, 2007, 27(1): 53-56.

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Detection and Safety Assessment of Viscosity Reducing Tower Pipelines

减粘塔管线的检测及安全评定

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