2017 ASME Boiler & Pressure Vessel Code: An International Code

✍ Scribed by American Society of Mechanical Engineers. Boiler and Pressure Vessel Committee

• Tongue: English
• Leaves: 203
• Category: Library

✦ Table of Contents

Table of Contents
List of Sections
INTERPRETATIONS
CODE CASES
Foreword
Statement of Policy on the Use of the Certification Mark and Code Authorization in Advertising
Statement of Policy on the Use of ASME Marking to Identify Manufactured Items
Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees
1 Introduction
2 Inquiry Format
3 Code Revisions or Additions
4 Code Cases
5 Code Interpretations
6 Submittals
Personnel
Organization of Section VII
1 General
2 Subsections and Articles
3 Appendices
Summary of Changes
List of Changes in Record Number Order
Cross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code
Subparagraph Breakdowns/Nested Lists Hierarchy
Footnotes
Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees
Cross-References
Subsection 1 Watertube Drum-Type Industrial Steam Boilers
Article 100 Fundamentals of Watertube Boilers
100.1 Steam Generation
100.2 Watertube Boilers
100.3 Boiler Assembly Types
100.3.1 Shop-Assembled (Package) Boilers
100.3.2 Field-Assembled Boilers
100.4 Economizers
100.5 Superheaters
100.6 Combustion
100.7 Boiler Efficiency and Air Emissions
Article 101 Boiler Operation
101.1 General Guidelines
101.1.1 Personnel Training
101.1.2 Preventing Explosions
101.1.3 Maintaining Proper Water Level
101.1.4 Maintaining Proper Furnace Pressure
101.1.5 Maintaining Clearance for Expansion
101.1.6 Reference Sources
101.2 Preparing for Operation
101.2.1 Inspection
101.2.2 Chemical Cleaning
101.2.3 Safety Checklist for Boiler Examination
101.2.4 Water-Side Checklist
101.2.5 Fire-Side Checklist
101.2.6 External Checklist
101.2.7 Pressure Testing
101.3 Starting Up
101.3.1 General
101.3.2 Establish Water Level
101.3.3 Light-Off
101.3.4 Going Online
101.4 Online Operation
101.4.1 Operating Data
101.4.2 Water-Side Operations
101.4.3 Pressure Relief Valves
101.4.4 Leaks
101.4.5 Soot Blowing
101.5 Out-of-Service Operation
101.5.1 General
101.5.2 Shutdown
101.5.3 Draining
101.5.4 Isolation and Preparation
101.5.5 Waterside Cleaning
101.5.6 Fireside Cleaning
101.5.7 Storage
Article 102 Boiler Auxiliaries
102.1 Preparation of Auxiliaries for Service
102.2 Fuel-Burning Equipment
102.2.1 General
102.2.2 Preparation for Operation
102.2.3 Ignitors
102.2.4 Gas Systems
102.2.5 Oil Systems
102.2.6 Response to Tube Failure
102.3 Air Heaters
102.3.1 Preparation for Placing in Service
102.3.2 Placing in Service
102.3.3 Normal Operation
102.3.4 Emergency Operation Due to Fire
102.4 Boiler Feed Pumps
102.4.1 Preparation for Service
102.4.2 Placing in Service
102.4.3 Normal Operation
102.5 Auxiliary Drives
102.5.1 Motor Start-Up and Operation Checks
102.5.2 Mechanical Drive Turbine Start-Up and Operation Checks
102.6 Draft Fans
102.6.1 Preparation for Service
102.6.2 Placing in Service
102.6.3 Normal Operation
102.6.4 Emergency Operation
102.7 Dampers
Article 103 Appurtenances
103.1 Boiler Pressure Relief Valves
103.1.1 General
103.1.2 Pressure Relief Valve Maintenance
103.1.3 Pressure Relief Valve Testing
103.2 Pressure Relief Valves for Economizers and Auxiliaries
103.2.1 General
103.2.2 Examination and Maintenance
103.2.3 Repair and Testing
103.3 Transportation and Installation of Pressure Relief Valves
103.4 Water Columns, Gage Classes, and Level Transmitters
103.4.1 Proper Blowdown Procedure
103.4.2 Proper Valve Types
103.4.3 Proper and Complete Heat Insulation
103.4.4 Leakage Correction
103.5 Boiler Blowdown
103.6 Pressure Gages
103.6.1
103.6.2
103.6.3
103.6.4
103.6.5
103.7 Feedwater Regulator Valve
103.8 Soot Blowers
103.9 Fusible Plugs
Article 104 Instrumentation, Controls, and Interlocks
104.1 General
104.2 Indicators and Recorders
104.2.1 Indicating Devices
104.2.2 Recording Devices
104.2.3 Preparation for and Placing in Service
104.2.4 Checking and Testing
104.3 Water-Level Indication
104.4 Controls and Interlocks
104.4.1 Controls
104.4.2 Interlocks
104.4.3 Safety Controls
104.4.4 Preparation for and Placing in Service
104.4.5 Checking and Testing
Article 105 Examinations
105.1 Scope
105.2 Inspection and Examination Frequency
105.3 Preparation for Inspection or Examination
105.3.1 General
105.3.2 External Surfaces and Parts
105.4 Examination of Internal Surfaces of Boilers and Appurtenances
105.4.1 All Boilers
105.4.2 Watertube Boilers
105.5 Examination of External Surfaces of Boilers, Appurtenances, and Auxiliaries
105.5.1 General
105.5.2 Piping
105.5.3 Pressure Relief Valves
105.5.4 Other Boiler-Related Items
105.6 Care and Maintenance
105.6.1 Housekeeping
105.6.2 Certificates and Licenses
105.6.3 Record Keeping and Logs
105.7 Repairs
105.8 Pressure Tests
105.9 General Listing of Examinations
105.9.1 All Examinations
105.9.2 Internal Examinations
105.10 Inspector
105.11 POM Outage Examinations and Operational Walkdowns
Article 106 Repairs, Alterations, and Maintenance
106.1 Repairs and Alterations
106.2 Maintenance
106.2.1 General
106.2.2 Information to Assist in Maintenance
106.2.3 Maintenance Checks
106.2.4 Operating Checks Relating to Maintenance
106.3 Boiler Maintenance Programs
106.3.1 Examination and Overhaul Procedures
106.3.2 Maintenance and Overhaul Scheduling
106.3.3 Equipment Histories and Spare Parts Inventories
106.3.4 Personnel Training
106.3.5 Equipment Improvement
106.4 Maintenance Checks for Steam Boilers
106.4.1 Watertube Boilers
106.5 Checklists to Assist in Maintenance
Subsection 2 Pertaining to All Steam Boilers
Article 200 Protecting Heat Transfer Surfaces
200.1 General
200.2 Internal Cleaning of Boilers
200.3 Laying up of Boilers
200.3.1 Water Side
200.3.2 Dry Storage
200.3.3 Wet Storage
200.3.4 Fire Side
200.4 Deposits
200.4.1 Scale
200.4.2 Sludge
200.4.3 Internal Deposit Monitoring
200.5 Internal Corrosion
200.5.1 General
200.5.2 Oxygen Corrosion
200.5.3 Caustic Corrosion
200.5.4 Chelate Corrosion
200.5.5 Acid Corrosion
200.5.6 Auxiliary Equipment Corrosion
200.5.7 Examinations
200.6 Corrosion Cracking of Boiler Steel
200.6.1
200.6.2
200.6.3
200.6.4
200.6.5
200.6.6
200.6.7
200.7 Steam Contamination
200.7.1 General
200.7.2 Control of Steam Contamination
200.8 Sampling, Testing, Controlling, and Reporting of Analyses of Water
200.8.1 Sampling
200.8.2 Testing
200.9 Fire-Side Conditions
200.9.1 General
200.9.2 Soot
200.9.3 Slag
200.9.4 Corrosion
Article 201 Preventing Boiler Failures
201.1 General
201.2 Overpressure
201.2.1 Indicators — Steam Pressure Gages
201.2.2 Pressure Relief Valves
201.2.3 Relief Equipment — Fusible Plugs
201.3 High or Low Water Level
201.3.1 Indicators — Gage Glasses
201.3.2 Indicators — Automatic High- and Low-Water-Level Alarms
201.3.3 Automatic Trip
201.4 Weakening of Structure
201.4.1 Boiler Start-Up
201.4.2 Control of Water Level
201.4.3 Erosion
201.4.4 Internal Corrosion
201.4.5 External Corrosion
201.4.6 Boiler Shutdown
201.4.7 Boiler out of Service
201.4.8 Failure of Supports
201.4.9 Mechanical Damage
201.5 Operation of Combustion Equipment
201.6 Furnace Explosions
201.7 Furnace Implosions
Article 202 Documents, Records, and References
202.1 Code Documentation
202.2 Referenced Documents
202.3 Record Drawings and Documentation
202.4 References
202.4.1 Published Documents Referenced in This Code
202.4.2 Other Documents Relating to Boilers
Subsection 3 Other Boiler Types
Article 300 Firetube Boilers
300.1 General
300.2 Out-of-Service Operation
300.2.1 Isolation
300.2.2 Water-Side Cleaning
300.3 Internal Examinations
300.3.1 Stays and Braces
300.3.2 Tube Defects
300.3.3 Ligaments Between Tube Holes
300.3.4 Manholes and Other Openings
300.3.5 Fire Surfaces
300.4 External Examination
300.5 Maintenance
300.5.1 General
300.5.2 Maintenance Checks
300.5.3 Operating Checks Relating to Maintenance
300.5.4 Checklist to Assist in Maintenance
Article 301 Electric Steam Boilers
301.1 Types and Features
301.2 Resistance-Element Electric Boilers
301.2.1 Water Quality and Treatment for Resistance-Element Electric Boilers
301.2.2 General Care and Maintenance of Resistance-Element Electric Boilers
301.3 Electrode Steam Boilers
301.3.1 Basic Electrode Steam Boilers
301.3.2 Commonly Used Electrode Steam Boiler Designs
301.3.3 Jet-Spray Electrode Steam Boiler Designs
301.3.4 Water Quality and Treatment for Electrode Steam Boilers
301.3.5 Electrical System Requirements for Electrode Steam Boilers
301.3.6 Maintenance Requirements for Electrode System Boilers
Article 302 Utility Boilers
302.1 Start-Up
302.1.1 Establish Water Level
302.1.2 Direct Spring-Loaded Pressure Relief Valves
Subsection 4 Coal-Fired and Other Solid-Fuel-Fired Boilers
Article 400 Stoker-Fired Boilers
400.1 General
400.2 Preparation for Service
400.3 Stoker Firing
400.4 Shutting Down
400.5 High Water Level in Stoker-Fired Boilers
400.6 Boiler Tube Failure on Stoker-Fired Units
Article 401 Pulverized-Coal-Fired Boilers
401.1 General
401.2 Preparation for Service
401.3 Maintaining Proper Furnace Pressure
401.4 Pulverized-Coal Firing
401.5 Shutting Down
401.6 Fire in Nonoperating Pulverizers
401.7 Fire in Operating Pulverizers
401.8 Fire in Pulverized-Fuel Systems
401.9 Instrumentation, Controls, and Interlocks for Pulverized-Fuel Operation
401.10 Cyclone Furnaces
Article 402 Ash Removal
402.1 General
402.2 Bottom Ash — Wet Removal
402.3 Bottom Ash — Dry Removal
402.4 Fly Ash Removal
402.5 Fire-Side Cleaning
Article 403 Maintenance
403.1 Maintenance Checks — Stokers
403.1.1 Underfeed Stoker
403.1.2 Spreader Stoker
403.1.3 Dump Grates
403.1.4 Traveling Grates
403.2 Maintenance Checks — Pulverized-Coal Firing
403.2.1 Feeder
403.2.2 Pulverizer
403.2.3 Exhauster
403.2.4 Burner
403.3 Maintenance Checks — Ash Removal System
403.3.1
403.3.2
Subsection 5 Glossary
Mandatory Appendices
Mandatory Appendix I Standard Units for Use in Equations
Nonmandatory Appendices
Nonmandatory Appendix A Checklists for Maintenance Examinations
Article A-100 Procedures for Care and Maintenance of Package Boilers
A-100.1 Cleaning of Parts and Strainers
A-100.2 Care of Motors and Electrical Equipment
A-100.3 Drying of Parts After Water Immersion
A-100.4 Permanent or Seasonal Shutdown
Article A-101 Maintenance Checks for Gas-, Oil-, and Solid-Fuel-Fired Watertube Boilers
Article A-102 Operating Checks Relating to Maintenance for Gas-, Oil-, or Solid-Fuel-Fired Watertube Boilers
Article A-103 Maintenance Checks for Firetube Boilers
Article A-104 Operating Checks Relating to Maintenance for Firetube Boilers
Nonmandatory Appendix B Guidance for the Use of U.S. Customary and SI Units in the ASME Boiler and Pressure Vessel Code
B-100 Use of Units in Equations
B-200 Guidelines Used to Develop SI Equivalents
B-300 Soft Conversion Factors
Figures
100.2-1 Simple Steam Drum
100.2-2 Steam Drum With Tubes
100.2-3 Steam Drum Internals — Baffle Type
100.2-4 Steam Drum Internals — Double-Row Arrangement, Cyclone Separator Type
100.4-1 Typical Economizer
101.5.4-1 Typical Valve Lineup Prior to Out of Service Operation
102.2.3-1 Simplified Pilot Gas Piping Arrangement
102.2.5.2-1 Simplified Fuel Oil Train — Single Burner With Oil Heating
102.2.5.2-2 Simplified Light Fuel Oil Train — Multiple Burner
102.3.1-1 Typical Tubular Air Heater
102.3.1-2 Typical Regenerative Air Heater
102.3.1-3 Details of Regenerative Air Heater, Bisector Type
102.4.2-1 Typical Centrifugal Boiler Feed Pump, Water Connections
102.5-1 Typical Motor Drive
102.5-2 Typical Single-Stage Turbine Drive
102.5-3 Typical Turbine Drive Arrangement
102.6.1-1 Airfoil Blade Centrifugal Fan With Inlet Vane Control
102.7-1 Typical Outlet Fan Dampers (Multilouver)
103.1.2.9-1 Typical Direct Spring-Loaded Safety Valve
103.1.2.9-2 Recommended Direct Spring-Loaded Safety Valve Installation
103.1.3-1 Application of Test Gag
103.1.3-2 Hydraulic Lift Assist Device
103.4-1 Typical Installation of a Boiler Water-Level Gage
103.4.1-1 Gage Glass and Water Column Blowdown Procedure
103.4.2-1 Y‐Type Globe Valve
105.4.1.2-1 Typical Forms of Fusible Plugs
200.4.1-1 Scale Causing Overheating and Tube Failure
200.4.1-2 Deposit Effect on Boiler Tube Versus Tube Temperature
200.5.2-1 Oxygen Corrosion in an Economizer Tube
200.5.3-1 Caustic Gouge-Type Attack on Boiler Tube
200.5.4-1 Chelate Attack Caused by Excessive Feed of Chemical
200.5.6-1 CO2 Carbonic Acid Attack on Condensate Pipe
200.5.6-2 Oxygen Attack on Condensate Pipe
200.6.6-1 H+ Damage on Boiler Tube
300.3.1-1 Typical Stays
301.2-1 Typical Electric Steam Boiler With Resistance Elements
301.2-2 Typical Electric Steam Boiler With Electronic Water-Level Controls
301.2-3 Typical Large Industrial 300-kW Electric Steam Boiler With Resistance Elements Mounted Horizontally
301.3.1-1 Electrode Steam Boiler
301.3.3-1 Basic Electrode Steam Boiler With Jet Spray and Mechanical Control Shield
301.3.3-2 Electrode Steam Boiler With Jet Spray and Variable-Speed Pump Control
400.1-1 Typical Underfeed Stoker
400.1-2 Feeder–Distributor for Firing of Coal on a Spreader Stoker
400.1-3 Spreader Stoker, Continuous Ash Discharge Grate
401.2-1 Typical Bowl Mill
401.2-2 Typical Attrition Mill
401.2-3 Arrangement of Ball-Tube Mill
401.4-1 Burner for Horizontal Firing of Coal
Tables
200.8.1-1 Methods for Sampling of Water and Steam
200.8.2-1 Methods of Analysis for the Control of Water for Boilers
200.8.2-2 Useful Tests for the Control of Water for Boilers
I-100-1 Standard Units for Use in Equations
Forms
A-101-1 Watertube Boilers — Maintenance Checks
A-102-1 Watertube Boilers — Operating Checks Relating to Maintenance
A-103-1 Firetube Boilers — Maintenance Checks
A-104-1 Firetube Boilers — Operating Checks Relating to Maintenance