Podcast
Questions and Answers
What is the purpose of having multiple boilers in larger steam systems?
What is the purpose of having multiple boilers in larger steam systems?
- To provide redundancy and additional capacity (correct)
- To decrease the thermal capacity
- To increase the steam pressure
- To reduce the number of steam headers
What condition is the boiler in when it is being brought online?
What condition is the boiler in when it is being brought online?
- Hot and at reduced pressure
- Hot and at normal operating pressure
- Cold and at reduced pressure (correct)
- Cold and at normal operating pressure
How are the different steam headers identified in a high-pressure steam plant?
How are the different steam headers identified in a high-pressure steam plant?
- By the pressures at which they operate (correct)
- By the equipment they supply steam to
- By the size of the pipes they are connected to
- By the temperature at which they operate
What can happen if headers and piping are not properly warmed up in a steam plant?
What can happen if headers and piping are not properly warmed up in a steam plant?
In a multiple boiler system, how are the high pressure and intermediate pressure headers connected?
In a multiple boiler system, how are the high pressure and intermediate pressure headers connected?
What is the purpose of connecting headers in sequence in a multiple boiler system?
What is the purpose of connecting headers in sequence in a multiple boiler system?
When warming the steam line between the header and Boiler 2, what should be done with the Boiler 2 header block valve?
When warming the steam line between the header and Boiler 2, what should be done with the Boiler 2 header block valve?
What should be done with the Boiler 2 non-return valve drain when warming the steam line to Boiler 2?
What should be done with the Boiler 2 non-return valve drain when warming the steam line to Boiler 2?
What should be done with the header block valve drain when warming the steam line to Boiler 2?
What should be done with the header block valve drain when warming the steam line to Boiler 2?
In what condition should the boiler be operating when cutting in a power boiler into a pressurized steam header?
In what condition should the boiler be operating when cutting in a power boiler into a pressurized steam header?
When cutting in a boiler with non-return valves, at what point should the non-return valve be slowly opened fully?
When cutting in a boiler with non-return valves, at what point should the non-return valve be slowly opened fully?
What should be done after opening the header stop valve for Boiler 2 fully?
What should be done after opening the header stop valve for Boiler 2 fully?
What should be done when cutting in boilers that do not have non-return valves?
What should be done when cutting in boilers that do not have non-return valves?
When should the header stop valve be slowly opened fully in boilers that do not have non-return valves?
When should the header stop valve be slowly opened fully in boilers that do not have non-return valves?
What is the first step when placing a steam heating boiler on line with other heating boilers that are already in service?
What is the first step when placing a steam heating boiler on line with other heating boilers that are already in service?
Why should ALL DRAIN VALVES at ALL SYSTEM LOW POINTS be opened when warming high-pressure steam headers in a multiple boiler plant?
Why should ALL DRAIN VALVES at ALL SYSTEM LOW POINTS be opened when warming high-pressure steam headers in a multiple boiler plant?
What is the purpose of the double block and bleed arrangement for multiple power boilers with manholes connected to a common steam header?
What is the purpose of the double block and bleed arrangement for multiple power boilers with manholes connected to a common steam header?
What is the purpose of the bypass valves located at the header block valves of multiple power boilers feeding a common steam header?
What is the purpose of the bypass valves located at the header block valves of multiple power boilers feeding a common steam header?
What should be done to warm the steam line to the header using steam from Boiler 2 when Boiler 2 is being warmed to place it on line with Boiler 1?
What should be done to warm the steam line to the header using steam from Boiler 2 when Boiler 2 is being warmed to place it on line with Boiler 1?
When is it considered hazardous to put a relatively short length of pipe into full service without warming it up and drying it out?
When is it considered hazardous to put a relatively short length of pipe into full service without warming it up and drying it out?
