Boiler Maintenance Training

Lesson 1 • Heat Transfer Principles in Boilers

Explains conduction, convection, and radiation as they apply to boiler operation. Provides the thermodynamic basis for efficiency and maintenance decisions.

Lesson 2 • Boiler Types and Industrial Applications

Covers fire-tube, water-tube, and electric boiler designs and their typical use cases. Establishes the classification framework used throughout the course.

Lesson 3 • Boiler Auxiliaries and Support Systems

Introduces feedwater pumps, fans, economisers, and air preheaters as auxiliary equipment. Shows how auxiliaries integrate with the main boiler circuit.

Lesson 4 • Core Components and Their Functions

Identifies pressure vessels, drums, headers, tubes, and burner assemblies. Connects component function to overall system performance.

Lesson 1 • Permit-to-Work and Emergency Response

Covers hot-work permits, confined-space permits, and emergency shutdown protocols. Prepares technicians to respond to boiler emergencies systematically.

Lesson 2 • Lockout/Tagout Procedures for Boilers

Details energy isolation steps for steam, fuel, electrical, and feedwater systems. Directly prevents accidental energisation during maintenance activities.

Lesson 3 • Personal Protective Equipment Selection

Matches PPE types to specific boiler hazards and task requirements. Ensures technicians select and inspect PPE correctly before beginning work.

Lesson 4 • Identifying Boiler Hazards

Catalogues thermal, pressure, chemical, and electrical hazards specific to boiler environments. Builds hazard-recognition skills applied in every subsequent chapter.

Lesson 1 • Distributed Control and SCADA Integration

Introduces DCS and SCADA platforms used for boiler monitoring and alarming. Prepares technicians to navigate control screens and respond to system alarms.

Lesson 2 • Water Level Monitoring Devices

Explains gauge glasses, magnetic level indicators, and electronic level transmitters. Correct level monitoring prevents low-water damage and carryover.

Lesson 3 • Pressure and Temperature Measurement

Covers Bourdon-tube gauges, thermocouples, RTDs, and transmitters used in boiler circuits. Accurate readings are the foundation of safe operation and maintenance decisions.

Lesson 4 • Combustion Control Systems

Describes fuel-air ratio control, oxygen trim, and flame safeguard systems. Proper combustion control maximises efficiency and prevents unsafe conditions.

Lesson 1 • Water Chemistry Fundamentals

Explains pH, hardness, dissolved oxygen, and total dissolved solids as key boiler water parameters. Establishes the chemical baseline for all treatment decisions.

Lesson 2 • Blowdown Management and Control

Explains surface and bottom blowdown purposes, frequency, and automatic blowdown control. Proper blowdown maintains water quality while minimising energy loss.

Lesson 3 • Feedwater Treatment Methods

Covers softening, deaeration, reverse osmosis, and chemical dosing for feedwater conditioning. Each method targets specific contaminants that damage boiler components.

Lesson 4 • Boiler Water Chemical Treatment

Details phosphate, polymer, and amine programmes used to control scale and corrosion inside the boiler. Correct dosing protects tube integrity and extends boiler life.

Lesson 1 • Emissions Control and Compliance

Explains NOx, SOx, and particulate control technologies and monitoring requirements. Technicians understand how maintenance practices affect emissions performance.

Lesson 2 • Flue Gas Analysis and Efficiency Testing

Covers portable analyser use, O2/CO2/CO measurement, and stack loss calculation. Flue gas data drives combustion tuning and regulatory compliance reporting.

Lesson 3 • Burner Operation and Adjustment

Teaches burner startup sequences, flame pattern assessment, and air-fuel ratio adjustment. Correct burner setup directly affects efficiency, emissions, and safety.

Lesson 4 • Fuel Types and Handling Systems

Compares natural gas, fuel oil, and solid fuel systems including storage and delivery equipment. Safe fuel handling is prerequisite to burner operation and maintenance.

Lesson 1 • Refractory and Insulation Maintenance

Covers inspection, repair, and replacement of furnace refractory and external insulation. Intact refractory protects the shell and maintains combustion efficiency.

Lesson 2 • Developing a Preventive Maintenance Schedule

Covers daily, weekly, monthly, and annual PM task structures based on manufacturer and regulatory requirements. A structured schedule prevents unplanned failures and supports compliance.

Lesson 3 • Tube and Pressure Vessel Inspection

Details visual, ultrasonic, and eddy-current inspection methods for tubes and pressure parts. Early detection of wall thinning and pitting prevents catastrophic failures.

Lesson 4 • Lubrication and Rotating Equipment PM

Covers lubrication intervals, grease types, and bearing inspection for pumps and fans. Proper lubrication prevents premature bearing failure in critical auxiliary equipment.

Lesson 1 • Combustion and Burner Fault Diagnosis

Diagnoses flame failure, pulsation, sooting, and ignition faults using flue gas data and visual inspection. Combustion faults affect safety, efficiency, and emissions simultaneously.

Lesson 2 • Corrective Repair Techniques and Verification

Covers tube plugging, tube rolling, weld repair qualification, and post-repair hydrostatic testing. Verified repairs restore pressure integrity and regulatory compliance.

Lesson 3 • Water-Side and Steam-Side Fault Diagnosis

Identifies priming, foaming, carryover, and scale-related faults using water chemistry and level data. Water-side faults are a leading cause of tube damage and efficiency loss.

Lesson 4 • Structured Troubleshooting Methodology

Introduces symptom-based fault trees, five-why analysis, and cause-and-effect diagrams. A repeatable methodology reduces diagnostic time and prevents misdiagnosis.

Lesson 1 • Pre-Startup Inspection and Checklist

Establishes a systematic pre-startup checklist covering mechanical, electrical, and instrumentation readiness. Completing the checklist prevents startup failures and safety incidents.

Lesson 2 • Wet and Dry Layup Methods

Compares wet layup with nitrogen blanketing and dry layup with desiccant protection for idle boilers. Method selection depends on outage duration and ambient conditions.

Lesson 3 • Controlled Startup and Load Acceptance

Guides technicians through cold-start warm-up curves, steam purging, and incremental load acceptance. Proper startup prevents thermal stress and ensures stable operation.

Lesson 4 • Planned and Emergency Shutdown Procedures

Details controlled load reduction, burner shutdown, and pressure blowdown sequences. Correct shutdown prevents thermal shock, water hammer, and equipment damage.