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 increase the steam pressure
- To reduce the number of steam headers
- To decrease the thermal capacity
- To provide redundancy and additional capacity (correct)
In what condition is the boiler when it is being brought online?
In what condition is the boiler when it is being brought online?
- Cold and at normal operating pressure
- Hot and at reduced pressure
- Hot and at normal operating pressure
- Cold and at reduced pressure (correct)
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 equipment they supply steam to
- By the pressures at which they operate (correct)
- By the temperature at which they operate
- By the size of the pipes they are connected to
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?
Why is it beneficial to have multiple boilers in larger steam systems?
Why is it beneficial to have multiple boilers in larger steam systems?
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?
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?
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 in a boiler system?
What is the purpose of the double block and bleed arrangement in a boiler system?
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?
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