Presentation is loading. Please wait.

Presentation is loading. Please wait.

Boilers Todays Agenda Function of a boiler Boiler operation Fuel Boiler parts Boiler drafts Boiler designs.

Similar presentations


Presentation on theme: "Boilers Todays Agenda Function of a boiler Boiler operation Fuel Boiler parts Boiler drafts Boiler designs."— Presentation transcript:

1

2 Boilers

3 Todays Agenda Function of a boiler Boiler operation Fuel Boiler parts Boiler drafts Boiler designs

4 Boilers Fundamentals Combustion Requires water Changes water to steam High temperature steam Steam to mechanical energy Other processes

5 Boiler Processes Turbine drivers Distillation columns Heat exchangers Reactors Extruders

6 Fuel Used in Boilers Fuel Used in Boilers Natural gas Fuel oil Process oil Process gas

7 Boiler Parts Burners (gas or oil) Pilot Firebox Steam drum Mud drum Economizer

8 How Boilers Works Fuel and air are mixed Controlled combustion in firebox Water tubes heat Convection circulation Steam exists steam drum Flue gas exists through stack

9 Boiler Symbols

10 Boiler Draft Configurations Natural draft Forced draft Induced draft Balanced draft

11 Boiler Designs Fired tube Water tube

12

13

14

15 Hazards Personal –Similar to furnace hazards –Heat –Fire/explosion (from unburned fuel) –High pressure steam Equipment – Problems? –Tube rupture –Soot buildup in super heat and economizer sections –Loss of water flow –Flame impingement on tubes –Impurities in water –Flame-out –Improper water level Process –If boiler goes down –Major effect –May be able to operate if have multiple boilers/cogen system

16 Monitoring and Maintenance Water and steamWater and steam flow ratesflow rates TemperaturesTemperatures Water levelWater level Superheat and saturated steam tempsSuperheat and saturated steam temps Firebox/combustionFirebox/combustion SmokeSmoke Burner/flame patternBurner/flame pattern Fuel pressure/tempFuel pressure/temp O2 levels in fireboxO2 levels in firebox Pressure in firebox and drumsPressure in firebox and drums Stack combustion monitorsStack combustion monitors Fan operationFan operation


Download ppt "Boilers Todays Agenda Function of a boiler Boiler operation Fuel Boiler parts Boiler drafts Boiler designs."

Similar presentations


Ads by Google