Pressure Vessels Fabrication in Hindi

Lecture - 1

In this Video lecture you will learn :

What Is Pressure Vessels: Pressure Vessel is Container designed to hold gaseous or liquids at pressure substantially different from the ambient pressure.

Classification or Types Pressure Vessels:

According to Fabrication: Shop Fabricated Pressure Vessels, Field Fabricated Pressure vessels, Riveted Pressure Vessels, Welded Pressure vessels, Forged Pressure Vessels, Cast Pressure Vessels, Multi layered Pressure Vessel.

According to Functions: Reactor, Accumulator, Columns, Drums, According to Material of Constructions, Steel Pressure Vessels, Cast iron pressure Vessels, Aluminium Pressure Vessels

According to Pressure: Internal Pressure, External Pressure, According to Method of Heating, Fired Pressure Vessels, Unfired Pressure Vessels, According to Geometry, Cylindrical Pressure Vessels, Spherical Pressure Vessels, Conical Pressure Vessels,

According to Orientation: Horizontal Pressure Vessels, Vertical Pressure Vessels, Inclined Pressure Vessels, According to Installations, Fixed Pressure Vessels, Portable Pressure Vessels

According to Wall Thickness: Thin Walled Pressure Vessels, Thick walled Pressure Vessels.

Pressure Vessels Parts:
Vessel Body – Cylindrical or Spherical Shell.
Vessels Heads – Flat, Tori, Elliptical, Hemi Heads
Vessel Supports - Leg , Lug, Skirt, Saddle Supports
Vessel Nozzles & Man ways

What is Mean by Codes: Codes is nothing but set of Rules for the Design, Fabrication, installation, Inspection, and Testing of Industrial Process Plants and Equipment's.

What is Mean by Standards: It Consist of group of Rules Prepared by Professional People for the Design, Manufacturing and Pressure Integrity of the Components.

Principles of Pressure Vessel Codes : Safety, Constructability, Operability, Maintainability, Economy

ASME SECTION VIII – For Pressure Vessels : This Section Provides all Rules and requirements applicable to the design, fabrication, inspection, testing, and certification of pressure vessels. It has Division - 1, Division – 2, Division – 3 three Devisions.

Pressure Vessel Code is revised and updated after interval of every three years and Addenda published annually

ASME SECTION II – For Materials : This Section Provides all details for Materials Part A – Ferrous Material Specifications, Part B – Nonferrous Material Specifications, Part C – Specifications for Welding Rods, Electrodes, and Filler Metals, Part D – Properties.

ASME SECTION V – For Non-Destructive Testing: This section describes for Requirements and methods for nondestructive examination which are referenced and required by other code Sections. It also includes manufacturer’s examination responsibilities, duties of authorized inspectors and requirements for qualification of personnel, inspection and examination. E.g – DPT, RT, UT, MPT.

ASME SECTION IX – For Welding Qualifications : This section provides Rules relating to the qualification of welding and brazing procedures as required by other Code Sections for component manufacture. It also Covers rules are related to the qualification and re-qualification of welders and welding and brazing operators in order that they may perform welding or brazing as required by other Code Sections in the manufacture of components

AWS – American Welding Society – For Welding - This Code is used for Welding Process, Welding Material, Welding Consumables and other Welding data

API – American Petroleum Institute - Storage Tanks -This Code is used for Storage Tank Fabrication. It Has API 620, API 650 Standards.

Piping Codes - ASME B 31.1 – Power Piping, ASME B 31.2 – Fuel Gas Piping, ASME B 31.3 – Process

Piping, ASME B 31.4 – Liquid Piping, ASME B 31.5 – Refrigeration Piping, ASME B 31.8 – Gas Transmission and Distribution Piping,

Pipe Standards - ASME B 36.19 – Stainless Pipes, ASME B 36.10 – Carbon Steel and Alloy Pipes

Fittings Standards - ASME B 16.10 – For SW and Screwed Fittings, ASME B 16.9 – For BW Fittings

Flanges Standards: ASME B 16.1 – Cast Iron Flanges, ASME B 16.5 – Forged Steel Flanges, ASME B 16.47 – Forged Steel Flanges for Big Bore Size

Bolts And Nuts Standards: ASME B 18.2.1 – Bolts, ASME B 18.2.2 - Nuts

Valves Standards: ASME B 16.34 For Valves, ASME B 16.10 Face to Face Dimensions

Gaskets Standards : ASME B 16.20 Metallic Gaskets, ASME B 16.21 Non Metallic Gaskets
Pickling Specification: SSPC – SP – 8 - 63.

Please Watch Video For Better Understanding.

Lecture - 2

This Video Lecture describes Fabrication Machines, Tools, Instruments and Personal Protection Equipment.

Fabrication Shop Machines: Plate Rolling Machines, Welding Machines, Gas Cutting Machines, Power Saw Machines, Bending Machines, Shearing Machines, Hydraulic Press or Spinning Machines, Pipe or Section Bending Machines, Polishing Machine, Hydro Testing Pump, Painting Equipment.

Machine Shop Machines: Lath Machines, Radial Drill Machines, Milling Machines, Slotting Machines, Portable Drill Machines, Bench Grinding Machine

Fabrication Tools: Measuring Tape, Steel Ruler or Scale, Right Angle, Compass, Hammer, Files, Drill Bits, Spirit Level, Angle Protector, Hand Drills, Grinding Tools, Level Tube, Line Thread, Plumb.

Fabrication Instruments, Vernier Caliper ,Micrometre, Height Gauge, Thickness Tester, Welding Gauge, PMI Machine, Temperature Gun, Tachometer, Vibro-meter, RAL Colour Checker

Personal Protection Equipment's: Helmet, Goggle, Hand Gloves, Safety Shoes, Ear Plug, Nose Mask, Aprons, Safety Belt

Lecture - 3

In This Video Lecture you will learn Drawing Overview of Flow Diagrams, Equipment Fabrication Drawings, Piping Drawings.

Flow Diagrams: Block Flow Diagrams, PFD – Process Flow Diagram, P&ID – Piping and Instrumentation Diagrams, UFD – Utility Flow Diagrams.

BFD – It Consist of Blocks with Inputs and Outputs lines Connected to them. It don’t shows what is involved in blocks but concentrate on Input and Output flow. Liquid line Connected to bottom of Block & Gaseous lines Connected to Top of the Block.

PFD – It shows Major Equipment's, Major Piping, Main Instruments, Flow Direction, Design Conditions.

P&ID – It shows All Equipment's, All Piping, All piping Components such as Valves, Flanges, Instruments, Special Elements etc.

UFD- It is P&ID for the Plant utilities. It is created when utility can not be accommodated in process P&ID. Plant Utilities: Water lines, Air lines, Steam lines, Condensate lines, Flare lines, Drain lines,

Equipment Fabrication Drawings:

Equipment layout : It shows the actual location of the equipment in the plant area with respect to the control point or origin.

Equipment GA Drawing : It Shows general arrangement of Equipment. It Consist of plan view, elevation view, major dimensions, technical details, scope of the equipment

Fabrication Drawing : This Drawing shows all detail required for equipment fabrication such as equipment plan view, elevation view, Sectional view, dimensions, part detailing, welding details, bill of material, design data, nozzle schedule etc.

Fabrication layout Drawing : This Drawing consist of flat pattern layout of all the component in fabrication drawing such as shell, cone, dish ends etc. It is best practice to make layout drawing so that we can plan material and save the cost.

Equipment Assembly Drawing : It shows assembly of all Sub component or sub equipment's of that main equipment with main equipment.

Piping Drawings : Piping GA Drawing, Piping Isometrics, Spool Fabrication Drawing, Instrument Hook Up Drawing.

Piping GA Drawing : It shows piping arrangement, connected equipment's & other facilities involved in the plant such as pipe racks, equipment platform ladder, gauges, supports in top view with their exact location .

Piping Isometric Drawings : An isometric drawing is nothing but a detailed orthographic drawing that represents the details of 3D structure of the piping system in a 2D format. This drawing Consist of : Line number, Flow Direction, Support Tags and location, Piping Components location, Weld Locations.

Spool Fabrication Drawing : The prefabricated components of a piping system are called pipe spools. They include the pipes, flanges and fittings, and they are mounted during the fabrication before they are delivered to the construction are.

Instrument Hook Up Drawing: Hook-up drawing is a detailed drawing showing typical installation of instrument in a correct manner so that instrument operates properly

Please watch video for full understanding

Lecture - 4

In this Vieo lecture you will learn Fabrication Drawing Study of General Pressure Vessel, Jacketed Vessel, Limpet Coil Vessels or other process equipments.

Fabrication Drawing Study:
1. General Pressure Vessels
2. Jacketed Pressure Vessels
3. Limpet Coil Vessels

Fabrication Drawing Study Parameters:

1. Drawing Sheet Size
2. Drawing Name Plate Details
3. Drawing Revision Details
4. Drawing Design or Technical Details
5. Drawing Bill of Material
6. Drawing Nozzles Schedule
7. Drawing Notes
8. Drawing Views
9. Drawing Dimensional Reference & Details
10. Drawing Part Detailing
11. Nozzles Orientation
12. Drawing Welding Details
13. Drawing Nozzles & Manhole Details

Lecture - 5

In this video lecture you will learn Pressure Vessels Part Detailing of Shell Detailing in Fabrication Drawing

Shell – It is Cylindrical Shape Section in pressure vessels drawing which contains process Fluids.

Shell is Fabricated using Following Methods:
1. Shell Fabrication Using Pipe
2. Shell Fabrication Using Plate

Process for Shell Fabrication: Shell Using Plate is Fabricated by using Rolling Process on Plate Rolling Machine. Shell Using Pipe is Fabricated Directly by Cutting Pipe of required size.

In Pressure Vessels Detailing Shell elevation View and Plan View is Shown and in detailing Inside diameter, shell Height, shell Thickness is important and it has to shown in Detailing of Shell in fabrication Drawing.

In this Video Shell Plate Size Calculation formulae and process is discussed, In Shell plate required size calculation plate length taken as Shell Height, width is calculated using Formulae and thickness is mentioned in Drawing.

Shell Plate Lay outing Sheet Metal Planning is done by using lay outing shell plate on raw plate size.