Podcast
Questions and Answers
What must operators do to ensure the safety and long life of boilers?
What must operators do to ensure the safety and long life of boilers?
- Rapidly heat the boiler metal
- Ignore the warm-up rates prescribed by the boiler manufacturers
- Pay attention to the warm-up rates prescribed by the boiler manufacturers (correct)
- Avoid paying attention to warm-up rates
According to ASME VI Recommended Rules, what should operators do if abnormal conditions occur during the light-off or warm-up period?
According to ASME VI Recommended Rules, what should operators do if abnormal conditions occur during the light-off or warm-up period?
- Increase the heating rate of the boiler
- Shut down the boiler immediately and close the main and pilot test firing valves (correct)
- Keep operating the boiler without shutting down
- Continue operating the boiler and ignore the abnormal conditions
What is one of the conditions encountered during warm-up that may seem abnormal but should disappear after the boiler is hot?
What is one of the conditions encountered during warm-up that may seem abnormal but should disappear after the boiler is hot?
- Slight smoking (correct)
- Rapid heating of the boiler metal
- Increased condensation
- Complete shutdown of the boiler
What should be done before restarting a boiler if abnormal conditions have occurred during warm-up?
What should be done before restarting a boiler if abnormal conditions have occurred during warm-up?
What is advised for operators of power boilers if abnormal conditions occur during startup?
What is advised for operators of power boilers if abnormal conditions occur during startup?
What does ASME VI Recommended Rules advise operators to do if abnormal conditions occur during light-off or warm-up?
What does ASME VI Recommended Rules advise operators to do if abnormal conditions occur during light-off or warm-up?
What can cause flue gas condensation in a boiler?
What can cause flue gas condensation in a boiler?
What can happen if a cold boiler is fired at too high a rate?
What can happen if a cold boiler is fired at too high a rate?
How can uneven expansion in a boiler be worsened?
How can uneven expansion in a boiler be worsened?
What is the result of thermal shock in the metal of a boiler?
What is the result of thermal shock in the metal of a boiler?
How can boilers be protected from thermal shock?
How can boilers be protected from thermal shock?
What does flue gas condensation indicate in a boiler?
What does flue gas condensation indicate in a boiler?
What is the recommended maximum rate of increase in boiler water temperature for larger boilers during warm-up?
What is the recommended maximum rate of increase in boiler water temperature for larger boilers during warm-up?
What is a good indication of refractory damage during boiler warm-up?
What is a good indication of refractory damage during boiler warm-up?
When should the water level control system for steam boilers be placed on automatic?
When should the water level control system for steam boilers be placed on automatic?
What warning is given regarding leaving a boiler unattended during its warm-up period?
What warning is given regarding leaving a boiler unattended during its warm-up period?
What is the purpose of continually monitoring the boiler while it is warming up and pressurizing?
What is the purpose of continually monitoring the boiler while it is warming up and pressurizing?
What should be done after the boiler pressure approaches its normal pressure or temperature set point during warm-up?
What should be done after the boiler pressure approaches its normal pressure or temperature set point during warm-up?
What should be done if combustion gases are not passing normally through the furnace and flue gas passages during warm-up?
What should be done if combustion gases are not passing normally through the furnace and flue gas passages during warm-up?
What is important to prevent during the warm-up period of a boiler?
What is important to prevent during the warm-up period of a boiler?
