Piping Arrangement Around Drum
1.Uses
-Collect liquid from vapor circuits and pump it to other process group
-Disposal
-Product storage
-Steam generation
-Deaeration of boiler feed water
2.Steps in preparation piping arrangement around drums
-Setting height of the drum
-Study of nozzle orientation
-Platforming
-Piping Arrangement
3.Location of Drums
-Adjacent to related equipment
-As a standalone operation
-Vertical drums are arranged on the same center-line of vertical equipment
4.Installation of Drums
a.Factors
-Function of drums
-Process requirement
-Shape and size of drum
-Cost effectiveness
b.Elevation and Support
-NPSH
-Minimum clearance
-Common platforming
-Maintenance and operator access
5.Nozzle orientation
a.Basic Conception
-To meet the process requirement
-Easy operation
-Easy maintenance
-Cost effectiveness
b.Nozzles and accessories installed in Access Area
-Manhole, Hand hole and Access hole
-Instrument nozzles: LC,LG,PG,etc.
-Purge nozzles (N2, Steam)
-Nameplate
-Davit
c.Nozzle installed in Piping Area
-Nozzles to which piping is connected
-Required at drums for access to valves, instrument and blinds
-Maintenance accesses
6.Piping Plan
a.Piping are arranged according
-Conjunction with nozzle location
-Platform arrangement
-Drums location to related equipment
b.Support
-Saddles from concrete piers
-Steel frames
-Trunnions
