How to do Maintenance of Fin-Fan Cooler
Some of Maintenance Procedure Arrangements Before start work
1. You must have an authorized work permit.
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| Work Permit |
2. You must have proper tools for working.
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| Tools used in refinery |
3. You should always use proper PPE ( Personal Protective Equipment ) for your safety.
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| PPE ( Personal Protective Equipment ) |
4. Today we are talking about maintenance of Fin-Fan and this work always executed on height so you must have to use Safety Harness as a falling protection.
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| Safety Harness |
5. As per requirement always use scaffolding.
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| Scaffolding |
6. If any fluid or pressure present in equipment then drain the fluid and release the pressure.
7. And the most important thing is to provide blinding as per blind list for the positive isolation of an equipment.
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| What is Blinding |
Let’s Start,
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Fin Fan Air Cooler MaintenanceSteps for Maintenance Procedure |
1. Remove the plugs using torque wrench. ( Do not use
hammer ring spanners and other hammering methods to remove the plugs because
that will damage the thread )
2. Remove the old gasket rings
without damaging the gasket area.
3. Now offer to inspection team for preliminary
inspection.
4. Fix hydro jet water collection trays.
5. Now hydro jet the tubes.
6. After hydro jetting air clean the tubes.
7. Offer once again for Inspection.
8. If ok, clean the gasket area
good without damage.
9. Check the thread for any
damage.
10. Clean the plugs good and check
the threads.
11. Fix the plug with new gasket.
12. Tight plugs by torque wrench
to required value.
13. Now fill the water and Hydro
Test.
14. Identify leaks through
Tubes/Plugs.
15. If no leak offer for
inspection to the team.
16. Now drain the water and
de-Blind.
17. Finally make good housekeeping and work safely.
Qusetion Answer Related to Fin-Fan
Questios no1- What are the types of gaskets used in the fin-fan cooler plugs and material of construction?
Ans- Ring type gaskets are used and material of construction
is soft iron, aluminium, stainless steel
and alloy.
Questio no2- What are the size of plugs used in
fin-fan cooler?
Ans- 1 1/8 (28.5 mm) is the normal size. But 1 ¼(31.75=32
mm) and 1 3/8 (34.9=36 mm) plugs are also used.
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