HMD5032PRESSURE VESSEL DESIGN*KOLEJ KEMAHIRAN TINGGI MARAPASIR MAS, KELANTANTOPIC : EXTERNAL VESSEL ATTACHMENT

INSTRUCTIONAL AIMSIn the end of this topic, all students will be able to;

List out the components will be install outside of pressure vessel.

Explain about the nature and function for all those components.*

EXTERNAL PARTSSupportNozzleMan ways / manholeBootlegsBridles and InstrumentationPlatform*Pipe support and GuideBracketsLifting LugDavit armName PlateExternal vessel parts can be classified into several types which that are:

NATURE AND FUNCTION1. SUPPORTSupport can classified into two types which that are:Saddlewill be install on horizontal vessel only.Skirtwill be install on vertical vessel and also on spherical vessel.

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NATURE AND FUNCTION (Cont..)Usually material used to produce saddle is made from aluminium alloy casting.Could also use other casting iron to replace aluminium alloy casting.The main function was to support cylindrical and spherical pressure vessel.*

*SKIRTSADDLE

*SKIRT

NATURE AND FUNCTION (Cont..)2. NOZZLECan be classified into two shape which that are:ForgingPipe

Used to control fluid movement pulled out or entered to pressure vessel.

Nozzle orientation should be consider with internal vessel attachment.*

*PIPEFORGINGNOZZLE

NATURE AND FUNCTION (Cont..)3. MANWAYSCan divided into two shape which that are:SphereRectangular

Man ways design should be consider with customer requirement and customer needed.

The function of man ways is to enable worker into pressure vessel.*

*MAN WAYS / MANHOLE

*RECTANGULAR MAN WAYS

NATURE AND FUNCTION (Cont..)4. BOOTLEGS

The function of bootlegs is to separate oil and water in pressure vessel.Usually are used at separator pressure vessel.Vortex breaker will happen in section bootlegs.*

*BOOTLEGS

*BOOTLEGS

NATURE AND FUNCTION (Cont..)5. BRIDLES AND INSTRUMENTATIONThe bridles is including piping equipment namely :small butt-weldedsocket weldedscrewed-welded

Bridles can be use to hold pressure measurement and valve equipment.*

NATURE AND FUNCTION (Cont..)*Instrumentation is an important part which it will use to measure and control the commodity in pressure vessel.It can divided into several types which that are:Pressure gaugeLevel gaugeValve and etc

*BridlesInstrumentations

*INSTRUMENTATIONS

*BridlesInstrumentations

NATURE AND FUNCTION (Cont..)6. PLATFORMLike small elevated walkways around the outside of a vessel or between equipment and structure.Usually 3 wide and they have a floor made of steel grating or plate.With 3 tall handrails, workers can safely operate, inspect and maintain a vessel.Platforms are spaced not more than 30 and not closer than 8.*

*PLATFORM

*PLATFORM

*PLATFORM

NATURE AND FUNCTION (Cont..)7. PIPE SUPPORT AND GUIDEIt is made from suitable iron wherever material selection very important.Function to support pipe that had pulled out or entered to pressure vessel.Used also to avoid pipe movement from their current position when the vessel in normal operation.*

*PIPE SUPPORT AND GUIDE

NATURE AND FUNCTION (Cont..)8. BRACKETSResides in various types and form.Material use for bracket must be suitable with material or component weight to be support and the pressure.The function of bracket is to hold other component and also to prevent component movement from their current position.

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*BRACKETS

NATURE AND FUNCTION (Cont..)9. LIFTING LUGDonut-shape rings welded to the vessels shell or head.Material for lifting lug must be suitable with vessel total weight to avoid any incident.It will use to allow the vessel to be raised and positioned during installation.

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*LIFTING LUG

NATURE AND FUNCTION (Cont..)10. DAVIT ARMAre shaped like L's letter.Usually available in form round bar.Material selection to generate davit arm is depend to material heavy would be held.The function of davit arm is to hold the door of man ways.*

*DAVIT ARMDAVIT ARM

*DAVIT ARM

*DAVIT ARM

NATURE AND FUNCTION (Cont..)11. VESSEL NAME PLATEUsually it is in square shape.Have all information about the pressure vessel including maximum working pressure, year built and etc.Need to install at pressure vessel before delivery process carried out.

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NATURE AND FUNCTION (Cont..)The location of name plate must be suitable and prevent from any clash with other component.The shape of name plate must be comply with ASME and it will depend to customer requirement.The standard of name plate is according to:U-StampS-StampUM-StampUV-Stamp*

NATURE AND FUNCTION (Cont..)*NAME PLATE

QUESTIONList out an external vessel components.Explain about the different between saddle and skirt.Why the name plate of vessel is very important?What is the function of nozzle?

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END OF CHAPTER 2THANK YOU*

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