Maintenance of Fin-Fan Air Cooler

Maintenance of Fin-Fan Air Cooler in Refinery

In this topic today, we will clear how the fin fan air cooler maintenance are done so that we will disburse in step by step detail.

Fin-Fan-Air-Cooler

 

Arrangement
Before start work

 

1. To sabse Pahle aapke pass
Work permit honi chahiye

2. Apke pass proper tools
hone chahiye

3. Apko proper PPE jarur
istemal karna chahiye aapke safety ke liye.

4. Aur aaj ham baat kar rhe
h fin-fan ke maintenance ki to ye kaam hame height per rah kar karna hota hai
to Safety harness ka upyog jarur kare.

5. Jarurat ke hisab se
scaffolding erection jarur kra le

6. Equipment me koi fluid ho
ya pressure ho to use bhi drain or release kar le.

 

 

7. Aur sabse khas  baat ki Blind list ke aadhar per inlet or
outlet ka blinding kar le yaani ki equipment ka positive isolation kaam shuru
karne se pahle jarur kar le.

 

watch video of Fin-Fan Maintenance

 

 

Let’s Start Steps by Step Maintenance

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 threads )
 
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 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.
 

Question Answer

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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