شبیه‌سازی عددی جریان سیال درون پمپ کولینگ و بررسی تأثیر رفتار هیدرو دینامیکی سیال بر سازه پمپ

نوع مقاله : ترویجی

نویسندگان

1 استادیار، دانشکده مهندسی مکانیک، دانشگاه آزاد اسلامی واحد چالوس

2 کارشناسی ارشد، دانشکده مهندسی مکانیک، دانشگاه آزاد اسلامی واحد چالوس

3 استادیار پژوهشگاه هوافضا، وزارت علوم تحقیقات و فناوری

چکیده

پمپ کولینگ نقش اساسی در یک پالایشگاه گاز ایفا می‌کند. در صورت از سرویس خارج شدن این پمپ (و آماده نبودن پمپ جایگزین) بلافاصله پالایشگاه از سرویس خارج می‌شود. لذا حساسیت این تجهیز ازلحاظ عملیاتی و فرآیندی بسیار حیاتی می‌باشد و تعمیر و نگهداری آن باید در کوتاه‌ترین زمان ممکن صورت پذیرد. با استفاده از تکنیک ارتعاش سنجی وضعیت سلامت این تجهیز مرتباً پایش می‌گردد. در یک بازه زمانی پس از بررسی وضعیت ارتعاشات تجهیز، بیس پلیت پمپ تصویض شد و همچنین جهت کاهش تنش‌های ناشی از پاپینگ، چیدمان پایپنگ ورودی به پمپ طراحی و اصلاح گردید. انجام اصلاحات مذکور، منجر به این شد که میزان ارتعاشات در شرایط جدید، از 8 میلی‌متر در ثانیه به 5 میلی‌متر کاهش یابد. همچنین جهت بررسی تأثیر رفتار سیال بر عملکرد پمپ، در یک پروژه جداگانه، به‌وسیله دینامیک سیالات محاسباتی (CFD)، جریان سیال درون پروانه و محفظه پوسته پمپ شبیه‌سازی گردید.

کلیدواژه‌ها


عنوان مقاله [English]

Numerical simulation of flow fluid in cooling pump and investigation of effect of flow behavior on pump structure

نویسندگان [English]

  • kouros Nekoufar 1
  • Gholamhasan Salek 2
  • seyed arash seyed shams taleghani 3
1 Department of Mechanical Engineering, Islamic Azad University, Chalous branch
2 Islamic Azad University, Electronic Branch
3 Assistant Professor, Aerospace Research Institute, Ministry of Science, Research, and Technology
چکیده [English]

In industrial plants such as gas refinery, sustainable production is a top priority. The cooling pump plays an essential role in a gas refinery. If the pump is out of service (and if the replacement pump is not ready), the refinery will be shut down immediately. Therefore, the sensitivity of this equipment is very critical in terms of operation and process and should be maintained in the shortest possible time. The status of this equipment is monitored regularly using the vibration technique. In a period of time, after the vibration analysis, a decision was made to modify the base plate of the pump as well as to reduce the stress; piping arrangement of the pump was redesigned and modified. These modifications resulted in a reduction in vibration rate from 8 mm / s to 5 mm under new conditions.

کلیدواژه‌ها [English]

  • Gas refinery
  • pump
  • Cooling tower
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