Boiler Repair Training
273-01 Boiler Tube Repair
When you complete this lesson, you will be able to describe different types of tube assemblies which may need repair in a boiler. You will be able to list common causes of these leaks and procedures for repairing the tube and tube assemblies.
- Describe different types of boiler tube assemblies
- List causes of tube leaks and ruptures
- Explain the procedure for repairing a ruptured tube by closing
- Explain the procedure for cladding or shielding a damaged boiler tube
- Explain the procedure for replacing a damaged section of a tube or tube assembly
- Explain the procedure for repairing a boiler tube using replacement window
273-02 Inspecting the Fireside of a Boiler, Part 1
When you complete this lesson, you will be able to explain some specific items to look for when doing a fireside inspection on the watertubes of a large watertube boiler.
- Describe how to inspect the fireside of the boiler waterwalls for support failures
- Describe how to inspect the fireside of the boiler waterwalls for refractory failures and clinker damage
- Describe how to inspect the fireside of the boiler waterwalls for tube erosion and corrosion
- Describe how to inspect the fireside of the boiler waterwalls for tube overheating
- Describe how to inspect the fireside of the boiler waterwalls for ash accumulations
- Describe how to inspect the fireside of the boiler waterwalls for weld failures
- Describe how to inspect the burner openings, air ports, and inspection doors on the fireside of the boiler
- Describe some ways used to determine tube thickness on the waterwalls of a boiler
273-03 Inspecting the Fireside of a Boiler, Part 2
When you complete this lesson, you will be able to explain some specific things to look for when doing a fireside inspection on the superheaters, reheaters, economizers, ash hoppers, baffles, sootblowers, and the boiler bottom seal on the fireside of a large watertube boiler.
- Describe how to inspect the fireside of a superheater in a large watertube boiler
- Describe how to inspect the fireside of a reheater in a large watertube boiler
- Describe how to inspect a bottom ash hopper in a large watertube boiler
- Describe how to inspect the fireside of an economizer in a large watertube boiler
- Describe how to inspect baffles on the fireside of a large watertube boiler
- Describe how to inspect the boiler bottom seal in a large watertube boiler
273-04 Inspecting the Waterside of a Boiler
When you complete this lesson, you will be able to explain some specific things to look for when doing a waterside inspection on steam drums, moisture separators, headers, and tubes of a large watertube boiler.
- Describe how to inspect the waterside of the steam drum and moisture separators of a large watertube boiler
- Describe how to inspect the waterside of the headers and tubes of a large watertube boiler
273-05 Inspecting a Boiler’s Exterior
When you complete this lesson, you will be able to describe some specific areas to look at, and what to look for when inspecting the exterior of a large watertube boiler.
- Describe inspection techniques for the boiler casing
- Describe inspection techniques for the steam drum
- Describe inspection techniques for safety valves
- Describe inspection techniques for downcomers and pumps
- Describe inspection techniques around casing stiffeners and intrusions
273-06 Waterside and Fireside Cleaning of Boiler
When you complete this lesson, you will be able to explain some methods and procedures for cleaning and testing the waterside and fireside of a large watertube boiler.
- Recall how to perform a chemical cleaning procedure to clean the waterside of a large watertube boiler
- Recall how to use a hydrostatic testing procedure to test for leaks in a large watertube boiler
- Recall how to use a compressed air testing procedure to test for leaks in a large watertube boiler
- Define what a fireside cleaning of a large watertube boiler entails
- Recall how to close a boiler after fireside cleaning
- Recall how to pressurize a boiler and check for leaks after a fireside cleaning