ASME Sec I Power Boilers
INTRODUCTION
Boiler plays vital role in Power Generation Plants. If not properly designed or fabricated Boiler suffers many leakages/ failures. These failures lead to major shutdowns which results in failure in power generation
OBJECTIVES
- This 5-days course aims at understanding of construction features of Boilers, Basic Principles in Boiler design, fabrication and inspection, as stipulated by ASME Section I code. The course helps the participants to get a thorough overview of the ASME code requirements and their applications.
- The course heavily relies on practical utility of the code by covering several examples, exercises and case studies
OUTLINE
Day 1
Session 1
- Benchmark Quiz
- What are codes and standards
- Objectives of codes and standards
- Understanding of codes and standards
- Stated and implied requirement of codes.
- Overview of ASME codes.
Session 2
- Basic Steam Engineering
- Types of Boilers; Boiler components and their functions
- Introduction to ASME Sec. I
- Boilers included in ASME Sec I
- Boilers excluded from ASME SecI.
- Concept of primary stress Circumferential Stress Longitudinal stress.
Session 3
- Materials of Constructions for Power Boilers
- Allowable stress in ASME design
- Weld joint categories
- Weld joint types
- Concept of weld joint efficiency
- Design of cylindrical shells
- Homework Exam 1
Day 2
Session 1
- Points to recall day 1
- Static head calculations.
- Design of cylindrical shell
- Case studies
- Calculation of Required Thickness Design Thickness Normal thickness
- Calculation of MAWP.
Session 2
- Types of dished heads. • Selection of dished heads based on pressure / Diameter
- Design of ellipsoidal, Hemispherical, Torishpherical heads.
- MAWP calculations for heads
- Case studies.
Session 3
- Design of Pressure Parts
- Design of steam drums, water drums,
- Design of risers, down-commers, headers, waterwalls etc.
- Design of dished heads, covers, staybolts, supports etc.
- Homework Exam – 2
Day 3
Session 1
- Points to recall day – 2
- Design of nozzle openings
- Design of nozzle neck
- Selection of nozzle flanges
- Design of reinforcement pads
Session 2
- Brief over view for external pressure design
- Design for vacuum
- Selection and spacing of stiffening rings
Session 3
- Materials for pressure parts
- Identification of materials
- Partially identified materials
- Unidentified materials
- Materials for non-pressure parts
- Homework Exam – 3
Day 4
Session 1
- Points to recall day – 3
- Material inspection, test certificates
- Fabrication and welding requirements
- WPS / PQR, welder performance qualifications
- Forming and ovality
- Weld fit-ups and mis-alignments
- Weld reinforcements
- Weld – metal build-up
- Weld joints in shells
- Weld joints for nozzle attachments
Session 2
- Deciding PWHT requirement
- PWHT methods
- PWHT temperature, time
- Heating / cooling rates
- Deciding nozzle orientations
- Requirements of man-ways and inspection openings
- NDT of pressure parts
- Selection of NDT methods
- Code requirement for radiography
- Acceptance criteria for elongated and rounded indications
- UT requirement
Session 3
- PT and MT requirements
- Acceptance criteria for PT and MT
- Dimensional inspection and release for pressure test
- Pad- test
- Requirements for Pressure Gauges for pressure test
- Hydrostatic Test
- Calculating test pressures, Inspection pressures, pressurization stages and safety relief valve settings
- Test temperatures, Temperature Corrections
- Homework Exam – 4
Day 5
Session 1
- Points to Recall Day 4
- Field assembly of Boilers
- Special requirements for water tube Boilers
- Requirements for Fire-tube Boilers
- Requirements for miniature Boilers
- Boiler mountings and accessories
- Safety valve requirements
- Capacity of safety valves.
- Field assembly of Boilers
Session 2
- Post test inspection
- Stamping and Name plate
- Safety valve requirements
- Documentation & Records
Session 3
- Final Exam – Closed Book
- Final Exam – Open Book
- Feed Back
- Concluding session for Boiler Design Course
WHO SHOULD ATTEND
The course ideally suited for the professionals involved in Pressure Vessel Design, Pressure Vessel Inspection, maintenance and operation
DURATION
5 Day(s)