تجزیه و تحلیل قابلیت اطمینان و ارزیابی میزان خرابی (مطالعه موردی: دستگاه مبدل حرارتی)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری تخصصی مهندسی صنایع، دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران

2 گروه مهندسی صنایع، دانشکده فنی، دانشگاه خوارزمی، تهران، ایران

3 استادیار، عضو هیات علمی، دانشکده فنی مهندسی؛ دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران

4 دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

5 استادیار، عضو هیات علمی، دانشکده فنی مهندسی؛ دانشگاه آزاد اسلامی واحد تهران شمال

چکیده

مطالعات قابلیت اطمینان بخش مهمی از هر برنامه‌ی مدیریت نگهداری تجهیزات است. با پیچیده‌تر شدن سیستم‌ها، استراتژی‌های نگهداری برای دست‌یابی به تصمیمات پایدار برای مدیریت ضروری است. خرابی‌های ناگهانی در یک سیستم می‌تواند علت اصلی افت عملکرد ماشین‌آلات و تجهیزات صنعتی باشد. برای تصمیم‌گیری حیاتی درباره سیستم، از مکانیسم‌های مختلف تحمل خطا استفاده می‌شود. در مقاله حاضر، یک روش توزیع وایبل دو پارامتری به منظور تجزیه و تحلیل مجموعه داده‌های دستگاه مبدل حرارتی در صنایع پتروشیمی با استفاده از نرم افزار Isograph Hazop + v7.0 مورد بررسی قرار گرفته است. از آنجایی‌که عملکرد موثر یک سیستم، به برنامه‌ریزی و قابلیت اطمینان آن در شرایط مناسب وابسته است، این مقاله به ارائه‌ی یک روش برای بدست آوردن قابلیت اطمینان برای محاسبه فواصل ‌زمانی نگهداری پیشگیرانه در سیستم‌های واقعی پرداخته است. نتایج حاصل منجر به حجم کمتر بازرسی و فعالیت‌های تعمیراتی، ایمنی و قابلیت اطمینان واحدهای صنعتی و سود اقتصادی بیشتر می‌شود.

کلیدواژه‌ها


عنوان مقاله [English]

Reliability analysis and failure rate assessment (Case study: Heat Exchanger)

چکیده [English]

Reliability studies are an essential part of every management program for equipment maintenance. As systems become more complex, maintenance strategies become critical for making sustainable management decisions. Unexpected failures in a system can be the primary reason for the poor performance of industrial machinery and equipment. Various fault resistance mechanisms are utilized to make critical decisions for the system. In the present paper, a two-parameter Weibull distribution approach is considered to evaluate the heat exchanger datasets in the petrochemical industry using Isograph Hazop + v7.0 software. As the effective execution of a system depends on its reliability and planning under suitable conditions, this paper presents a strategy for finding the reliability to calculate the preventive maintenance intervals in actual systems. This approach leads to fewer number of inspections and fewer repair activities, higher safety and reliability of industrial units and also, higher economic benefit.
 

کلیدواژه‌ها [English]

  • Risk Based Inspection
  • Reliability
  • Weibull Distribution
  • Risk
  • Heat Exchanger
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