延迟焦化装置加工管法兰接头开裂原因分析

IF 0.3 Q4 ENGINEERING, CHEMICAL

Chemical and Petroleum Engineering Pub Date : 2023-08-17 DOI:10.17122/ngdelo-2023-3-188-200

Y. Badin, M. Budaragin, D.I. Dyachenko, A.N. Kiselev, A.Yu. Feytullaev

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引用次数: 0

摘要

介绍了某延迟焦化装置工艺管道法兰连接开裂的原因，在设计管道时，需要采用异种法兰连接。本文对不同类型法兰连接的开裂损伤问题进行了深入的探讨，并对损坏法兰连接的力学性能和金属结构进行了研究。结果表明，金属经过长时间的操作后，其状态是令人满意的，不可能是造成损伤的原因，这种损伤不属于各种性质的腐蚀作用造成的损伤。在对设备构件的强度条件进行校核的基础上，制定了防止新损伤的措施，进行了损伤发生的计算论证。给出了管道元件应力-应变状态的计算结果，并对现有紧固件材料设计中不同法兰连接出现裂纹形式的损伤进行了论证，以及对材料进行了修改。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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CAUSES OF CRACKING OF FLANGE JOINTS OF PROCESSING PIPES FOR DELAYED COKING UNITS

The article is devoted to the determination of the causes of damage in the form of cracking of flange connections of technological pipelines of a delayed coking unit, for which, when designing pipelines, it becomes necessary to use dissimilar flange connections. The article consistently explores the problem of damage in the form of cracking of dissimilar flange connections, the results of studies of the mechanical properties and metal structure of damaged flange connections are presented. It is concluded that the condition of the metal after prolonged operation is satisfactory and it could not be the cause of damage, the damage is not of the nature of damage due to corrosion effects of various nature. The calculated justification of the occurrence of damage is carried out on the basis of checking the strength conditions for equipment elements with the development of measures to prevent new damage. The results of calculations of the stress-strain state of pipeline elements are presented with justification for the occurrence of damage in the form of cracking of dissimilar flange connections with the existing material design of fasteners, as well as with the proposed change in the material.

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来源期刊

Chemical and Petroleum Engineering ENGINEERING, CHEMICAL-

CiteScore

0.60

自引率

33.30%

发文量

129

期刊介绍： Chemical and Petroleum Engineering publishes the latest research on Russian innovations in the field. Articles discuss developments in machinery and equipment, construction and design, processes, materials and corrosion control, and equipment-manufacturing technology. Chemical and Petroleum Engineering is a translation of the Russian journal Khimicheskoe i Neftegazovoe Mashinostroenie. The Russian Volume Year is published in English from April. All articles are peer-reviewed.