Transcript “Fix Tube Sheet” Heat Exchanger General

“Fix Tube Sheet” Heat Exchanger
General Assembly view
Gasket
Tube side Inlet
Shell side Outlet
Gasket
Shell
Tube Sheet
End Flange
Cover
Distributor
Saddle
Gasket
Tube side Outlet
Shell side Inlet
Tube Sheet
1
“Fix Tube Sheet” Heat Exchanger
Cross Sectional View Assembly
Tube Sheet
Baffle
Tube
Shell
Cover
Tube sheet
Distributor
2
“Fix Tube Sheet” Heat Exchanger
Split view sectioned parts
Distributor
Gasket
Gasket
Shell-Tube sheet-Tubes
Cover
Gasket
End Flange
3
“Fix Tube Sheet” Heat Exchanger
Split View of Parts
Gasket
Gasket
Shell
Tube Sheet
Cover
Saddle
End Flange
Gasket
Distributor
Tube Sheet
4
Do Not Start The Job Without a Safety Plan
5
“Fix Tube Sheet” Heat Exchanger
Maintenance Activity Description
Blind Inlets-Outlets at
plant area
Install Blinds in-Out of
shell
Disconnect and remove
Distributor with gasket
Remove Cover with gasket
Ground level
6
“Fix Tube Sheet” Heat Exchanger
Shell Hydro-test
Install pressure gauge
Eliminate leaks if found
Connect water pump
Drain water from shell
Fill the shell by water
Remove PG & Water pump
Raise the pressure at value
indicated by Inspection
Remove blinds, fix gaskets
& tight bolts
PG
Drain
Ground level
Water Pump
7
“Fix tube sheet” Heat Exchanger
 Shell Side Hydro-test …Leak elimination from tubes [Details]
Tube sheet
Blind
Tube sheet
PG
Shell
Leak elimination
by Plugs
Water
Plug
Leak
Plug
Tube
PG
Leak elimination
by Expansion
Leak
Expander
Water
8
“Fix tube sheet” Heat Exchanger
 Tube Side Hydro-test [Details]
Install distributor with new
gasket
Install blinds at inlet-outlet
Install Pressure gauge &
water pump
Install cover with gasket
Fill Water tube side
Raise the pressure up to the
value indicated by Inspection
Check sealing distributor to shell
Check sealing distributor to end flange
Check sealing cover to Shell
Discharge water remove PG & pump
Remove blinds at distributor in-out
PG
Water Pump
Ground level
9
“Fix Tube Sheet” Heat Exchanger
Handover & Final House Keeping
By Maintenance
 Remove tools and equipment
 Close Work permit
 Clean and wash the area
 Remove scaffold after unit start-up
Ground level
10