Physical and reliability aspects of high-pressure ammonia water pipeline
failures
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Online publication date: 2022-10-04
Publication date: 2022-10-04
Eksploatacja i Niezawodność – Maintenance and Reliability 2022;24(4):728-737
HIGHLIGHTS
- The research problem was to determine the cause of the damage of the pipeline.
- Several tests of different types of selected parts of the pipeline were carried out.
- Structural analysis of the pipeline compensators was conducted.
- An attempt was made to develop a reliability model of the tested object.
- Practical recommendations on pipeline safe operation were made.
KEYWORDS
ABSTRACT
The paper concerns the problem of the occurrence of failures of the high-pressure ammonia
water pipeline of the coke oven battery complex, which is affected by chemical and thermal
factors as well as the operating pressure occurring during its use. Pipeline failures manifested themselves as leaks (leakage of the medium) due to cracks in the area of the pipeline
thermal elongation compensators. The conducted tests included, among others: visual inspection, penetration tests, macroscopic and microscopic tests as well as chemical analysis
of the material. The study includes microscopic photographs of the material structure and
cracks. The results of the pipeline strength and reliability analysis were also presented. On
the basis of the conducted research and analyses conclusions were formulated. The assumed
cause of the damage was the incorrectly made welded joints. Formulated recommendations
and proposals for actions aimed at avoiding further failures of this and similar pipelines were
related to the inspection time and preventive renewal.
CITATIONS (1):
1.
Shaping of the risk of a series-parallel manufacturing structure maintenance according to quasi-coherence and the K-th survival value
Bożena Zwolińska, Łukasz Kubica
Computers & Industrial Engineering