Floating head heat exchanger components & maintenance

Floating head heat exchanger
heat exchangers
maintenance

1. Floating y Head Hea t Exch hanger
MAINTENANCE

tio
Channel

2. FLOATING HEAD HEAT EXCHANGER

General Assembly view

Gaskets
‘i Shell side inlet
Tube side inet Gasket

Bundle Floating head

Back cover

Distributor
Saddle

Tube side outlet Shall side outlet

Tube Sheet

3. FLOATING HEAD HEAT EXCHANGER

Cross Sectional View

Tube side intet Shell side inlet Floating head
Shell
Tube Bundle

Tube side outlet Shell side outlet

4. FLOATING HEAD H

Gasket

Distributor

Ss View of Part:

Gasket Split ring
Tube Bundle

Tube sheot Tube shoot

EXCHANGE

Spacer
_ Gasket

Floating
y

Floating head
Details

_Gasket

Back cover

5. FLOATING HEAD HEAT EXCHANGER
Maintenance Activity Description

Blind inlets & outlets at plant area.
Disconnect and remove distributor with gasket.
Disconnect and remove back cover with gasket.
Disconnect and remove floating head with gasket.

Install the bundle puller.
Pull the bundle out.

6. FLOATING HEAD HEAT EXCHANGER

Maintenance Activity Description ... cont.

+ Lower the bundie and take to hydro-jetting area.
Clean shell and covers.
+ Lift the bundle puller with clean bundle and new gasket, ready for reinstallation.

ft

Ground level

7. FLOATING HEAD HEAT EXCHANGER

Maintenance Activity Description ... Cont.

Re-insert the bundle by bundle puller.

Lower the bundle puller to the ground and take it away.

"al

A

Ground level

8. FLOATING HEAD HEAT EXCHANGER

Maintenance Activity Description ... Cont.

+ Shell Side Hydro-test

Install front TEST RING with gasket.
Install back TEST RING with gasket.
Install blinds in shell nozzle.

Install PG.
Connect water pump.
Fill the shell by water,

Raise the pressure up to value given by Inspection
Check leakages from tubes.

Test Ring

Ground love! 7] Water Pump

9. FLOATING HEAD HEAT EXCHANGE!
Maintenance A y Description ... Cont.

View “B"

10. FLOATING HEAD HEAT EXCHANGER
Maintenance Activity Description ... Co

[By Expansion both sides)

Dotall “B"
By Plug both sides

Tube Expander Too!

11. FLOATING HEAD HEAT EXCHANGER

Maintenance Activity Description ... Cont.

Discharge water from shell drain.
Remove test ring & gasket (distributor side).

Reinstall distributor with new gasket & tight bolts

Blind distributor in & out.
Remove test ring & gasket (floating head side).
Re-install floating head with split flange, new gasket & tight bolts.