Steam boilers : Principles, Operations, Design & Control

سرفصل های دوره

A complete understanding of construction details, functionning and controls of steam boilers for successful operation

1. The boiler house

1. Introduction

2. Boiler types

3. Shell boilers

4. Lancashire boilers

5. Economic boilers - Two-pass, dry back

6. Economic boilers - Three-pass, wet back

7. Packaged boilers

8. Reverse flame

9. Shell boiler summary

10. Water tube boilers

11. Alternative water tube boiler layouts

12. Steam generators

13. Economizers

14. Superheaters

15. Test your knowledge.html

2. Boiler ratings

1. Introduction

2. From and at rating

3. From and at rating - Worked example

4. kW rating

5. kW rating - Worked example

6. Test your knowledge.html

3. Boiler efficiency and combustion

1. Introduction

2. Heat exported in steam

3. Heat provided by the fuel

4. Heat losses

5. Burners

6. Oil burners

7. Gas burners

8. Burner control systems

9. Safety

10. Test your knowledge.html

4. Boiler fittings and mountings

1. Introduction

2. Boiler name-plate

3. Safety valves

4. Stop valves

5. Feedwater check valve

6. Boiler water quality control

7. Pressure gauge

8. Gauge glasses

9. Maintenance of gauge glasses

10. Water level control

11. Air vents

12. Vacuum breakers

13. Test your knowledge.html

5. Steam headers and off-takes

1. Introduction to steam headers

2. Steam off-takes

3. Water carryover

4. Warm-up

5. Preventing one boiler pressurizing another

6. Ensuring proper steam distribution

7. Steam header characteristics

8. Test your knowledge.html

6. Water properties

1. Introduction

2. Hardness and salts

3. pH value

4. Test your knowledge.html

7. Water for the boiler

1. Introduction

2. Good quality steam

3. Carryover

4. External water treatment

5. Ion exchange

6. Base exchange softening

7. Dealkalisation

8. Demineralisation

9. Water quality vs treatment process

10. Test your knowledge.html

8. Feedtank and feedwater conditioning

1. Introduction

2. Worked example

3. Feedtank design

4. Feedtank construction

5. Condensate return

6. Flash steam

7. Steam injection

8. Feedtank vent

9. Feedtank take-off

10. Miscellanious

11. Water level control

12. Deaerators

13. Summary of feedtank components

14. Test your knowledge.html

9. Controlling TDS in the boiler water

1. Introduction

2. Boiler water sampling

3. Conductivity measurement in the boiler

4. Deciding on the required boiler water TDS

5. The blowdown rate

6. Controlling the blowdown rate

7. Closed loop TDS control systems

8. Test your knowledge.html

10. Heat recovery from boiler blowdown

1. Introduction to heat recovery

2. Energy flowrate in blowdown

3. Flash steam

4. Recovering and using flash steam

5. Heat recovery from residual blowdown

6. Design considerations

7. Summary - Total energy saving

8. More about heat exchangers Plate type

9. More about heat exchangers Shell and tube type

10. Test your knowledge.html

11. Water levels in steam boilers

1. Introduction

2. Boiler water level

3. Methods for detecting water levels in steam boilers

4. Level gauge glass

5. Magnetic

6. Switch contact

7. Reed contact

8. Optoelectronic switch

9. Hydrostatic pressure

10. Capillary systems

11. Radars

12. Radiometric sensors

13. Test your knowledge.html

12. Automatic levels control systems

1. ON OFF control

2. Modulating control

3. Variable speed feedwater pump

4. Single element water level control

5. Two element water level control

6. Summary of modulating level control

7. Test your knowledge.html

13. Water level alarms

1. Introduction to water level alarms

2. LOW water alarm

3. HIGH water alarm

4. Test your knowledge.html

14. Installation of level controls

1. Introduction

2. External chambers

3. Internal protection tubes

4. Test your knowledge.html

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تولید کننده: Udemy