4BE3.5 U4 C1 Obj 1 EMH

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

EASY Why is it important to carefully prepare a boiler for startup?

To prolong the boiler's lifespan

To ensure the boiler operates at maximum efficiency

To avoid costly downtime later on (correct)

To ensure the boiler meets regulatory standards

What determines the boiler preparation procedures in a large plant?

The local boiler inspector's recommendations

The type of boiler being used

The number of processes dependent on the steam system

The role the steam system plays in the plant (correct)

Why do boiler preparation procedures vary depending on the reason for shutdown?

To ensure all safety systems are operational

To accommodate the length of time the boiler was shut down (correct)

To accommodate the type of boiler being used

To ensure the boiler has a valid inspection certificate

What is assumed about the safety systems and devices on the boiler?

They were verified as operational during the commissioning period Signup and view all the answers

What is the focus of this chapter?

Common operational tasks for boiler plants being brought online Signup and view all the answers

What is required before bringing a boiler online?

A valid inspection certificate Signup and view all the answers

What is one of the tasks involved in preparing a boiler for startup?

Operating boiler plant auxiliaries Signup and view all the answers

What prior knowledge is recommended to understand the tasks in this chapter?

Prior knowledge of boilers, fuels, valves, pumps, and basic instrumentation Signup and view all the answers

What is the first step in checking the feedwater system?

Check all the valves in the water line from the source and manually verify that they are open. Signup and view all the answers

What is the purpose of a deaerator in a boiler plant?

To remove air from the feedwater system. Signup and view all the answers

What should be checked in the fuel oil system before starting a boiler?

The entire fuel train from the supply tank to the burner. Signup and view all the answers

What is the purpose of a gas train?

To supply natural gas to the burner. Signup and view all the answers

What should be checked in the natural gas system before starting a boiler?

Each valve in the gas train, from the service entrance to the burner. Signup and view all the answers

Why is it important to check the pressure drop across the fuel filter?

To ensure the correct delivery pressure range is achieved. Signup and view all the answers

What should be verified in the feedwater pre-treatment equipment?

All equipment, including ion exchangers, water softeners, filters, and clarifiers, are in service and functional. Signup and view all the answers

Why is it important to check the oil level in the fuel oil tank?

To verify that the tank has a sufficient level to meet the needs of the plant. Signup and view all the answers

What should be checked in the boiler feedwater pumps before starting a boiler?

The operating parameters, including oil level, temperature, and vibrations. Signup and view all the answers

Why is it important to ensure the boiler water level is within range?

To verify that the boiler is ready for service. Signup and view all the answers

What should be done if the fuel filter has an excessive pressure drop?

Service the fuel filter Signup and view all the answers

Why is it important to confirm fuel oil flow is within range?

To ensure oil is flowing Signup and view all the answers

What is included in the typical equipment inspection?

All equipment including fuel heaters and pressure control valves Signup and view all the answers

What should be done if leaks are found during the walk down of the fuel oil supply system?

Stop and isolate the fuel supply pumps Signup and view all the answers

Why is it important to check the combustion air openings to the outdoors?

To ensure an adequate supply of air is available Signup and view all the answers

What should be checked before starting the draft fan?

The lubrication system for the fan bearings and motors Signup and view all the answers

What should be done if the combustion air flow is blocked by frost?

Clean the screens at the outside air entrance Signup and view all the answers

Why is it important to check the furnace pressure after starting the draft fan?

To adjust the furnace pressure into range if necessary Signup and view all the answers

MEDIUM What should be done if there is no pressure drop across the fuel filter?

Verify fuel oil flow is within range Signup and view all the answers

What should be checked during the walk down of the fuel oil supply system?

Fuel supply system components, including valves and heaters Signup and view all the answers

What should be done if leaks are found during the walk down of the fuel oil supply system?

Stop and isolate the fuel supply pumps, lockout, tagout, and drain the affected parts of the fuel supply system Signup and view all the answers

What should be checked before starting the draft fan?

The lubrication system, air dampers, and combustion air openings Signup and view all the answers

Why is it important to ensure the combustion air openings to the outdoors are unobstructed?

To ensure adequate air supply for combustion Signup and view all the answers

What is the primary purpose of checking the feedwater system before starting a boiler?

To confirm the readiness of the feedwater system Signup and view all the answers

What should be done if frost blocks the combustion air flow?

Clean the screens and ensure they are frost-free Signup and view all the answers

During the startup ignition sequence, which valve must be opened?

Main gas cock Signup and view all the answers

What should be checked after starting the draft fan?

The furnace pressure, and adjust into range if necessary Signup and view all the answers

Why is it important to inspect each piece of equipment for expected operation?

To ensure the boiler starts safely and efficiently Signup and view all the answers

What is the correct sequence for checking the natural gas system?

Starting from the gas train to the burner Signup and view all the answers

What is the purpose of the deaerator in a boiler plant?

To remove air from the feedwater Signup and view all the answers

What should be checked during a walk-down of the fuel oil supply system?

The entire system from the fuel tank to the burner Signup and view all the answers

Why is it important to check the boiler water level?

To ensure proper steam production Signup and view all the answers

What should be checked in the fuel oil system before starting a boiler?

The entire system from the fuel tank to the burner Signup and view all the answers

What is the purpose of the gas train?

To supply natural gas to the burner Signup and view all the answers

Why is it important to verify the fuel oil flow rate?

To ensure proper combustion Signup and view all the answers

What should be checked in the boiler feedwater pumps before starting a boiler?

The operating parameters, including oil level, temperature, and vibrations Signup and view all the answers

What is a key consideration when preparing a boiler for startup?

The role the steam system plays in the plant Signup and view all the answers

What should be verified as operational during the commissioning period?

All safety systems and devices on the boiler Signup and view all the answers

What is assumed about the boiler before preparing it for startup?

The boiler has a valid inspection certificate Signup and view all the answers

What is the main focus of this chapter?

Common operational tasks performed on boiler plants being brought online Signup and view all the answers

What should be checked for leaks before preparing a boiler for startup?

The boiler, external piping, and fittings Signup and view all the answers

What type of boilers does this chapter focus on?

New boilers or those that have undergone extensive maintenance work Signup and view all the answers

What prior knowledge is helpful in understanding the tasks in this chapter?

Boilers, fuels, valves, pumps, and basic instrumentation Signup and view all the answers

What is a potential consequence of inadequate boiler preparation?

Costly downtime Signup and view all the answers

What is the primary reason for carefully preparing a boiler for startup?

To prevent costly downtime later on Signup and view all the answers

What determines the scope of boiler preparation procedures?

The role of the steam system in the plant Signup and view all the answers

What is the primary concern when preparing a newly constructed boiler for startup?

All of the above Signup and view all the answers

HARD What is the main focus of this chapter?

Common operational tasks for boiler startup Signup and view all the answers

What is assumed about the boiler before preparing it for startup?

All safety systems and devices are operational Signup and view all the answers

What is the purpose of checking the boiler feedwater system before startup?

To reduce the risk of boiler failure Signup and view all the answers

What is the primary concern when preparing a boiler that has undergone extensive maintenance?

All of the above, plus additional steps Signup and view all the answers

Why is it important to ensure the boiler and steam system are prepared and started before other process units in a large plant?

To provide energy supply to other process units Signup and view all the answers

What is the primary reason for checking the fuel oil flow rate?

To prevent excessive pressure drop across the fuel filter Signup and view all the answers

What is the consequence of not checking the combustion air openings to the outdoors?

Insufficient air supply to the boiler Signup and view all the answers

What is the purpose of inspecting each piece of equipment for expected operation?

To identify faulty equipment Signup and view all the answers

What should be done if an excessive pressure drop is found across the fuel filter?

Service the fuel filter to restore proper flow Signup and view all the answers

What is the primary focus of the walk-down inspection of the fuel oil supply system?

Checking for leaks and repairing them Signup and view all the answers

What should be done if the draft fan is not operating correctly?

Check the lubrication system for the fan bearings and motors Signup and view all the answers

What is the consequence of not checking the furnace pressure after starting the draft fan?

Furnace pressure may not be within range Signup and view all the answers

What should be done if the combustion air flow is blocked by frost?

Clear the frost blockage to restore air flow Signup and view all the answers

What is the purpose of checking the boiler water level before starting a boiler plant?

To confirm the feedwater pumps are operating within range Signup and view all the answers

What is the primary purpose of the deaerator in a boiler plant?

To remove oxygen from the feedwater system Signup and view all the answers

What should be verified during the walk-down of the fuel oil supply system?

That the fuel oil tank is at the correct level and all valves are in the correct position Signup and view all the answers

What is the purpose of the gas train in a natural gas system?

To provide a safe and reliable ignition source for the burner Signup and view all the answers

Why is it important to check the combustion air openings to the outdoors?

To ensure the combustion air flow is not blocked by frost or other obstructions Signup and view all the answers

What should be checked before starting the fuel oil pump?

The fuel oil tank level and valve positions Signup and view all the answers

Why is it important to verify the feedwater pre-treatment equipment is in service and functional?

To remove impurities from the feedwater system and prevent corrosion Signup and view all the answers

What should be done if leaks are found during the walk-down of the fuel oil supply system?

Shut down the system and repair the leaks Signup and view all the answers

Why is it important to check the fuel oil flow rate before starting a boiler?

To confirm the fuel oil supply system is functioning correctly Signup and view all the answers

What is the purpose of the main gas cock in a natural gas system?

To isolate the gas supply to the boiler Signup and view all the answers

Match the boiler startup preparations with their corresponding purposes:

Checking the fuel oil system = To ensure proper fuel delivery Inspecting the boiler feedwater pumps = To guarantee proper water supply Verifying the fuel oil flow rate = To prevent overheating Checking the combustion air openings = To ensure proper ventilation Signup and view all the answers

Match the boiler components with their corresponding checks:

Fuel oil tank = Oil level Feedwater pre-treatment equipment = Proper operation Fuel filter = Pressure drop Boiler water level = Within range Signup and view all the answers

Match the boiler startup procedures with their corresponding goals:

Checking for leaks = To prevent system damage Verifying safety systems = To ensure operational safety Inspecting the boiler = To identify potential issues Starting the draft fan = To provide combustion air Signup and view all the answers

Match the boiler components with their corresponding purposes:

Deaerator = To remove dissolved gases Gas train = To regulate gas flow Draft fan = To provide combustion air Safety valves = To prevent overpressure Signup and view all the answers

Match the boiler startup considerations with their corresponding importance:

Proper fuel delivery = To prevent overheating Proper ventilation = To prevent explosion Proper water supply = To prevent scaling Proper safety system operation = To prevent accidents Signup and view all the answers

Match the boiler components with their corresponding checks:

Fuel oil system = For leaks Feedwater system = For proper treatment Combustion air openings = For blockages Boiler = For proper insulation Signup and view all the answers

Match the boiler startup procedures with their corresponding timings:

Verifying safety systems = During commissioning period Inspecting the boiler = Before startup Checking the fuel oil system = Before startup Starting the draft fan = During startup Signup and view all the answers

Match the boiler components with their corresponding importance:

Safety valves = Critical for safety Fuel oil pumps = Critical for operation Draft fan = Critical for combustion Deaerator = Optional for efficiency Signup and view all the answers

Match the following components with their functions in the fuel oil system:

Fuel filters = Remove impurities from fuel oil Fuel supply pumps = Supply fuel oil to the boiler Fuel heaters = Heat heavy fuel oils Pressure control valves = Regulate fuel oil pressure Signup and view all the answers

Match the following actions with the correct step in preparing a boiler for startup:

Check the lubrication system for the fan bearings and motors = Before starting the draft fan Inspect each piece of equipment for expected operation = During the walk-down of the fuel oil supply system Verify fuel oil flow is within range = During the inspection of the fuel oil system Confirm combustion air openings to the outdoors are unobstructed = Before starting the draft fan Signup and view all the answers

Match the following items with their purposes in the combustion air system:

Screens at the outside air entrance = Prevent debris from entering the boiler Combustion air dampers = Regulate combustion air flow Frost-protected combustion air openings = Prevent frost buildup Air intake openings = Draw in combustion air Signup and view all the answers

Match the following components with their purposes in the fuel oil system:

Fuel recirculation valves = Recirculate excess fuel oil Fuel supply valves = Control fuel oil flow Pressure control valves = Regulate fuel oil pressure Fuel supply pumps = Supply fuel oil to the boiler Signup and view all the answers

Match the following actions with the correct response to a problem in the fuel oil system:

Excessive pressure drop across the fuel filter = Service the fuel filter No pressure drop across the fuel filter = Check for oil flow Leaks found in the fuel oil supply system = Stop and isolate the fuel supply pumps Low fuel oil flow rate = Verify fuel oil flow is within range Signup and view all the answers

Match the following components with their maintenance checks:

Draft fan = Check for vibration and unusual noises Fuel oil pumps = Check for leaks and proper operation Fuel filters = Check for excessive pressure drop Combustion air dampers = Check for proper operation and interlock with the burner system Signup and view all the answers

Match the following steps with the correct sequence in preparing a boiler for startup:

Walk down the fuel oil supply system = After verifying fuel oil flow and pressure Check the lubrication system for the fan bearings and motors = Before starting the draft fan Inspect each piece of equipment for expected operation = During the walk-down of the fuel oil supply system Verify fuel oil flow is within range = After checking the fuel oil supply system Signup and view all the answers

Match the following components with their purposes in the boiler system:

Draft fan = Supply combustion air to the boiler Fuel oil pumps = Supply fuel oil to the boiler Combustion air dampers = Regulate combustion air flow Fuel heaters = Heat heavy fuel oils Signup and view all the answers

Match the following components of a boiler plant with their description:

Deaerator = Removes air and other gases from the feedwater Fuel oil pump = Supplies fuel oil to the burner Feedwater pre-treatment equipment = Removes impurities from the feedwater Gas train = System of valves and devices that regulate the flow of natural gas to the burner Signup and view all the answers

Match the following components of a boiler plant with their function:

Ion exchangers = Remove impurities from the feedwater Bleed valves = Allow for the safe release of gas Water softeners = Remove minerals from the feedwater Limit switches = Shut off the fuel supply in case of an emergency Signup and view all the answers

Match the following components of a boiler plant with their location:

Fuel oil tank = Tank farm or pipeline Boiler feedwater pumps = Boiler room Gas service entrance = Outdoor area Condensate return tank = Feedwater system Signup and view all the answers

Match the following components of a boiler plant with their purpose:

Fuel filter = Removes impurities from the fuel oil Pilot gas manual isolation valve = Allows for the safe ignition of the main burner Main burner manual isolation valve = Allows for the safe shutdown of the main burner Boiler isolating valve = Isolates the boiler from the rest of the system Signup and view all the answers

Match the following components of a boiler plant with their function:

Emergency isolation valve = Shuts off the fuel supply in case of an emergency Relief valves = Allow for the safe release of pressure Manual valves = Control the flow of fuel or gas Safety shut-off valves = Shut off the fuel supply in case of an emergency Signup and view all the answers

Match the following components of a boiler plant with their purpose:

Fuel oil system = Supplies fuel oil to the burner Feedwater system = Supplies water to the boiler Combustion air system = Supplies air to the furnace Boiler water level = Indicates the level of water in the boiler Signup and view all the answers

Match the following components of a boiler plant with their function:

Fuel pump = Supplies fuel oil to the burner Draft fan = Supplies air to the furnace Feedwater pumps = Supplies water to the boiler Boiler feedwater = Supplies water to the boiler Signup and view all the answers

Match the following components of a boiler plant with their purpose:

Raw water tank = Stores untreated water Treated water tank = Stores treated water Makeup water tank = Stores additional water for the boiler Condensate return tank = Stores returned condensate Signup and view all the answers

Match the following components of a boiler plant with their function:

Clarifiers = Remove impurities from the feedwater Filters = Remove impurities from the feedwater Ion exchangers = Remove impurities from the feedwater Water softeners = Remove minerals from the feedwater Signup and view all the answers

Match the following components of a boiler plant with their purpose:

Pilot burner test firing valve = Allows for the safe ignition of the pilot burner Main burner test firing valve = Allows for the safe ignition of the main burner Pilot gas manual isolation valve = Allows for the safe shutdown of the pilot burner Boiler isolating valve = Isolates the boiler from the rest of the system Signup and view all the answers

Study Notes

Boiler Preparation

Boiler preparation is a step-by-step process that varies depending on the reason for shutdown and the role of the steam system in the plant.

Auxiliaries Preparation

Feedwater system must be checked and prepared before starting a boiler plant.
Fuel system must be checked and prepared before starting a boiler plant.
Combustion air system must be checked and prepared before starting a boiler plant.

Feedwater System Preparation

Check all valves in the water line from the source and manually verify they are open.
Ensure bypass valves around automatic control valves are closed.
Ensure feedwater pre-treatment equipment is in service and functional.
Confirm raw and treated water tanks are at their proper levels.
Ensure deaerator level is at set point, and corresponding valves are positioned for service.
Verify boiler feedwater pumps are in service, and operating parameters are within range.
Confirm boiler water level is within range.

Fuel System Preparation

Verify all necessary valves in the main and pilot fuel supply systems are open.
Verify correct temperature and pressure for fuel oil or natural gas.
Ensure main gas cock and other related valves are in their proper positions to initiate startup ignition sequence.
Check natural gas lines, starting at each burner, and verify the position of each valve in the train.
Check the emergency isolation valve, boiler isolating valve, main burner manual isolation valve, and pilot gas manual isolation valve.

Fuel Oil System Preparation

Perform a comprehensive tour of the oil storage and delivery system from the supply oil tank to the burner.
Verify the fuel tank has a sufficient level to meet the needs of the plant.
Check that all valves are in the correct startup position.
Start the fuel oil system.
Check pressure drop across the fuel filter and fuel oil flow.
Confirm fuel oil supply pressure is within range.
Reset low oil pressure, low oil temperature, and low atomizing media pressure cut-off switches.
Inspect each piece of equipment for expected operation.
Walk down the fuel oil supply system to check for leaks.

Combustion Air System Preparation

Check for adequate lubricant in the fan bearings.
Check the belt for cracks or fraying and replace as necessary.
Stroke the air dampers to ensure they are free to move their full range.
Ensure adequate supply of air is available.
Verify combustion air openings to the outdoors are unobstructed.
Ensure screens at the outside air entrance are clean and not covered with frost.
Check dampers are secured in the fully open position and interlocked with the burner system.
Start the draft fan and check furnace pressure, and adjust into range if necessary.
Check for vibration in the motor and bearings, and listen for unusual noises.

Boiler Preparation

Boiler preparation is a step-by-step process that varies depending on the reason for shutdown and the role of the steam system in the plant.

Auxiliaries Preparation

Feedwater system must be checked and prepared before starting a boiler plant.
Fuel system must be checked and prepared before starting a boiler plant.
Combustion air system must be checked and prepared before starting a boiler plant.

Feedwater System Preparation

Check all valves in the water line from the source and manually verify they are open.
Ensure bypass valves around automatic control valves are closed.
Ensure feedwater pre-treatment equipment is in service and functional.
Confirm raw and treated water tanks are at their proper levels.
Ensure deaerator level is at set point, and corresponding valves are positioned for service.
Verify boiler feedwater pumps are in service, and operating parameters are within range.
Confirm boiler water level is within range.

Fuel System Preparation

Verify all necessary valves in the main and pilot fuel supply systems are open.
Verify correct temperature and pressure for fuel oil or natural gas.
Ensure main gas cock and other related valves are in their proper positions to initiate startup ignition sequence.
Check natural gas lines, starting at each burner, and verify the position of each valve in the train.
Check the emergency isolation valve, boiler isolating valve, main burner manual isolation valve, and pilot gas manual isolation valve.

Fuel Oil System Preparation

Perform a comprehensive tour of the oil storage and delivery system from the supply oil tank to the burner.
Verify the fuel tank has a sufficient level to meet the needs of the plant.
Check that all valves are in the correct startup position.
Start the fuel oil system.
Check pressure drop across the fuel filter and fuel oil flow.
Confirm fuel oil supply pressure is within range.
Reset low oil pressure, low oil temperature, and low atomizing media pressure cut-off switches.
Inspect each piece of equipment for expected operation.
Walk down the fuel oil supply system to check for leaks.

Combustion Air System Preparation

Check for adequate lubricant in the fan bearings.
Check the belt for cracks or fraying and replace as necessary.
Stroke the air dampers to ensure they are free to move their full range.
Ensure adequate supply of air is available.
Verify combustion air openings to the outdoors are unobstructed.
Ensure screens at the outside air entrance are clean and not covered with frost.
Check dampers are secured in the fully open position and interlocked with the burner system.
Start the draft fan and check furnace pressure, and adjust into range if necessary.
Check for vibration in the motor and bearings, and listen for unusual noises.

Boiler Preparation

Boiler preparation is a step-by-step process that varies depending on the reason for shutdown and the role of the steam system in the plant.

Auxiliaries Preparation

Feedwater system must be checked and prepared before starting a boiler plant.
Fuel system must be checked and prepared before starting a boiler plant.
Combustion air system must be checked and prepared before starting a boiler plant.

Feedwater System Preparation

Check all valves in the water line from the source and manually verify they are open.
Ensure bypass valves around automatic control valves are closed.
Ensure feedwater pre-treatment equipment is in service and functional.
Confirm raw and treated water tanks are at their proper levels.
Ensure deaerator level is at set point, and corresponding valves are positioned for service.
Verify boiler feedwater pumps are in service, and operating parameters are within range.
Confirm boiler water level is within range.

Fuel System Preparation

Verify all necessary valves in the main and pilot fuel supply systems are open.
Verify correct temperature and pressure for fuel oil or natural gas.
Ensure main gas cock and other related valves are in their proper positions to initiate startup ignition sequence.
Check natural gas lines, starting at each burner, and verify the position of each valve in the train.
Check the emergency isolation valve, boiler isolating valve, main burner manual isolation valve, and pilot gas manual isolation valve.

Fuel Oil System Preparation

Perform a comprehensive tour of the oil storage and delivery system from the supply oil tank to the burner.
Verify the fuel tank has a sufficient level to meet the needs of the plant.
Check that all valves are in the correct startup position.
Start the fuel oil system.
Check pressure drop across the fuel filter and fuel oil flow.
Confirm fuel oil supply pressure is within range.
Reset low oil pressure, low oil temperature, and low atomizing media pressure cut-off switches.
Inspect each piece of equipment for expected operation.
Walk down the fuel oil supply system to check for leaks.

Combustion Air System Preparation

Check for adequate lubricant in the fan bearings.
Check the belt for cracks or fraying and replace as necessary.
Stroke the air dampers to ensure they are free to move their full range.
Ensure adequate supply of air is available.
Verify combustion air openings to the outdoors are unobstructed.
Ensure screens at the outside air entrance are clean and not covered with frost.
Check dampers are secured in the fully open position and interlocked with the burner system.
Start the draft fan and check furnace pressure, and adjust into range if necessary.
Check for vibration in the motor and bearings, and listen for unusual noises.

Boiler Preparation

Boiler preparation is a step-by-step process that varies depending on the reason for shutdown and the role of the steam system in the plant.

Auxiliaries Preparation

Feedwater system must be checked and prepared before starting a boiler plant.
Fuel system must be checked and prepared before starting a boiler plant.
Combustion air system must be checked and prepared before starting a boiler plant.

Feedwater System Preparation

Check all valves in the water line from the source and manually verify they are open.
Ensure bypass valves around automatic control valves are closed.
Ensure feedwater pre-treatment equipment is in service and functional.
Confirm raw and treated water tanks are at their proper levels.
Ensure deaerator level is at set point, and corresponding valves are positioned for service.
Verify boiler feedwater pumps are in service, and operating parameters are within range.
Confirm boiler water level is within range.

Fuel System Preparation

Verify all necessary valves in the main and pilot fuel supply systems are open.
Verify correct temperature and pressure for fuel oil or natural gas.
Ensure main gas cock and other related valves are in their proper positions to initiate startup ignition sequence.
Check natural gas lines, starting at each burner, and verify the position of each valve in the train.
Check the emergency isolation valve, boiler isolating valve, main burner manual isolation valve, and pilot gas manual isolation valve.

Fuel Oil System Preparation

Perform a comprehensive tour of the oil storage and delivery system from the supply oil tank to the burner.
Verify the fuel tank has a sufficient level to meet the needs of the plant.
Check that all valves are in the correct startup position.
Start the fuel oil system.
Check pressure drop across the fuel filter and fuel oil flow.
Confirm fuel oil supply pressure is within range.
Reset low oil pressure, low oil temperature, and low atomizing media pressure cut-off switches.
Inspect each piece of equipment for expected operation.
Walk down the fuel oil supply system to check for leaks.

Combustion Air System Preparation

Check for adequate lubricant in the fan bearings.
Check the belt for cracks or fraying and replace as necessary.
Stroke the air dampers to ensure they are free to move their full range.
Ensure adequate supply of air is available.
Verify combustion air openings to the outdoors are unobstructed.
Ensure screens at the outside air entrance are clean and not covered with frost.
Check dampers are secured in the fully open position and interlocked with the burner system.
Start the draft fan and check furnace pressure, and adjust into range if necessary.
Check for vibration in the motor and bearings, and listen for unusual noises.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Learn about the step-by-step process of preparing a boiler for startup, including the importance of proper preparation and its impact on other process units in a large plant. Understand the role of the steam system in a plant and how it affects other processes.

4BE3.5 U4 C1 Obj 1 EMH

Choose a study mode

Podcast

Questions and Answers

EASY Why is it important to carefully prepare a boiler for startup?

What determines the boiler preparation procedures in a large plant?

Why do boiler preparation procedures vary depending on the reason for shutdown?

What is assumed about the safety systems and devices on the boiler?

What is the focus of this chapter?

What is required before bringing a boiler online?

What is one of the tasks involved in preparing a boiler for startup?

What prior knowledge is recommended to understand the tasks in this chapter?

What is the first step in checking the feedwater system?

What is the purpose of a deaerator in a boiler plant?

What should be checked in the fuel oil system before starting a boiler?

What is the purpose of a gas train?

What should be checked in the natural gas system before starting a boiler?

Why is it important to check the pressure drop across the fuel filter?

What should be verified in the feedwater pre-treatment equipment?

Why is it important to check the oil level in the fuel oil tank?

What should be checked in the boiler feedwater pumps before starting a boiler?

Why is it important to ensure the boiler water level is within range?

What should be done if the fuel filter has an excessive pressure drop?

Why is it important to confirm fuel oil flow is within range?

What is included in the typical equipment inspection?

What should be done if leaks are found during the walk down of the fuel oil supply system?

Why is it important to check the combustion air openings to the outdoors?

What should be checked before starting the draft fan?

What should be done if the combustion air flow is blocked by frost?

Why is it important to check the furnace pressure after starting the draft fan?

MEDIUM What should be done if there is no pressure drop across the fuel filter?

What should be checked during the walk down of the fuel oil supply system?

What should be done if leaks are found during the walk down of the fuel oil supply system?

What should be checked before starting the draft fan?

Why is it important to ensure the combustion air openings to the outdoors are unobstructed?

What is the primary purpose of checking the feedwater system before starting a boiler?

What should be done if frost blocks the combustion air flow?

During the startup ignition sequence, which valve must be opened?

What should be checked after starting the draft fan?

Why is it important to inspect each piece of equipment for expected operation?

What is the correct sequence for checking the natural gas system?

What is the purpose of the deaerator in a boiler plant?

What should be checked during a walk-down of the fuel oil supply system?

Why is it important to check the boiler water level?

What should be checked in the fuel oil system before starting a boiler?

What is the purpose of the gas train?

Why is it important to verify the fuel oil flow rate?

What should be checked in the boiler feedwater pumps before starting a boiler?

What is a key consideration when preparing a boiler for startup?

What should be verified as operational during the commissioning period?

What is assumed about the boiler before preparing it for startup?

What is the main focus of this chapter?

What should be checked for leaks before preparing a boiler for startup?

What type of boilers does this chapter focus on?

What prior knowledge is helpful in understanding the tasks in this chapter?

What is a potential consequence of inadequate boiler preparation?

What is the primary reason for carefully preparing a boiler for startup?

What determines the scope of boiler preparation procedures?

What is the primary concern when preparing a newly constructed boiler for startup?

HARD What is the main focus of this chapter?

What is assumed about the boiler before preparing it for startup?

What is the purpose of checking the boiler feedwater system before startup?

What is the primary concern when preparing a boiler that has undergone extensive maintenance?

Why is it important to ensure the boiler and steam system are prepared and started before other process units in a large plant?

What is the primary reason for checking the fuel oil flow rate?

What is the consequence of not checking the combustion air openings to the outdoors?

What is the purpose of inspecting each piece of equipment for expected operation?

What should be done if an excessive pressure drop is found across the fuel filter?

What is the primary focus of the walk-down inspection of the fuel oil supply system?

What should be done if the draft fan is not operating correctly?

What is the consequence of not checking the furnace pressure after starting the draft fan?

What should be done if the combustion air flow is blocked by frost?

What is the purpose of checking the boiler water level before starting a boiler plant?

What is the primary purpose of the deaerator in a boiler plant?

What should be verified during the walk-down of the fuel oil supply system?

What is the purpose of the gas train in a natural gas system?

Why is it important to check the combustion air openings to the outdoors?

What should be checked before starting the fuel oil pump?

Why is it important to verify the feedwater pre-treatment equipment is in service and functional?

What should be done if leaks are found during the walk-down of the fuel oil supply system?