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A Boiler: The Explosive Potential of a Bomb
Acoustic Emission Examination of Metal Pressure Vessels
Anatomy of a Catastrophic Boiler Accident
Austenitic Stainless Steel
Auto-Refrigeration
Black Liquor Recovery Boilers - An Introduction
Boiler Efficiency and Steam Quality: The Challenge of Creating Quality Steam Using Existing Boiler Efficiencies
Boiler Logs Can Reduce Accidents
Boiler/Burner Combustion Air Supply Requirements and Maintenance
Carbon Monoxide Poisoning Preventable With Complete Inspection
Combustion Air Requirements:The Forgotten Element In Boiler Rooms
Creep and Creep Failures
Description of Construction and Inspection Procedure for Steam Locomotive and Fire Tube Boilers
Ensuring Safe Operation Of Vessels With Quick-Opening Closures
Environmental Heat Exchangers
Factors Affecting Inservice Cracking of Weld Zone in Corrosive Service
Failure Avoidance in Welded Fabrication
Finite Element Analysis of Pressure Vessels
Fuel Ash Corrosion
Fuel Firing Apparatus - Natural Gas
Grain Boundaries
Heat Treatment - What Is It?
How to Destroy a Boiler -- Part 1
How to Destroy a Boiler -- Part 2
How to Destroy a Boiler -- Part 3
Identifying Pressure Vessel Nozzle Problems
Inspection, Repair, and Alteration of Yankee Dryers
Inspection, What Better Place to Begin
Laminations Led to Incident
Lay-up of Heating Boilers
Liquid Penetrant Examination
Low Voltage Short Circuiting-GMAW
Low Water Cut-Off Technology
Low-Water Cutoff: A Maintenance Must
Magnetic Particle Examination
Maintaining Proper Boiler Inspections Through Proper Relationships
Microstructural Degradation
Miracle Fluid?
Organizing A Vessel, Tank, and Piping Inspection Program
Paper Machine Failure Investigation: Inspection Requirements Should Be Changed For Dryer Can
Pipe Support Performance as It Applies to Power Plant Safety and Reliability
Polymer Use for Boilers and Pressure Vessels
Pressure Vessels: Analyzing Change
Preventing Corrosion Under Insulation
Preventing Steam/Condensate System Accidents
Proper Boiler Care Makes Good Business Sense:Safety Precautions for Drycleaning Businesses
Putting a Stop to Steam Kettle Failure
Quick Actuating Closures
Quick-Actuating Door Failures
Real-Time Radioscopic Examination
Recommendations For A Safe Boiler Room
Recovering Boiler Systems After A Flood
Rendering Plants Require Safety
Residential Water Heater Safety
School Boiler Maintenance Programs: How Safe Are The Children?
Secondary Low-Water Fuel Cutoff Probe: Is It as Safe as You Think?
Short-Term High Temperature Failures
Specification of Rupture Disk Burst Pressure
Steam Traps Affect Boiler Plant Efficiency
Stress Corrosion Cracking of Steel in Liquefied Ammonia Service - A Recapitulation
Suggested Daily Boiler Log Program
Suggested Maintenance Log Program
System Design, Specifications, Operation, and Inspection of Deaerators
Tack Welding
Temperature And Pressure Relief Valves Often Overlooked
Temperature Considerations for Pressure Relief Valve Application
The Authorized Inspector's Responsibility for Dimensional Inspection
The Effects of Erosion-Corrosion on Power Plant Piping
The Forgotten Boiler That Suddenly Isn't
The Trend of Boiler/Pressure Vessel Incidents: On the Decline?
The Use of Pressure Vessels for Human Occupancy in Clinical Hyberbaric Medicine
Thermally Induced Stress Cycling (Thermal Shock) in Firetube Boilers
Typical Improper Repairs of Safety Valves
Wasted Superheat Converted to Hot, Sanitary Water
Water Maintenance Essential to Prevent Boiler Scaling
Water Still Flashes to Steam at 212
Welding Consideration for Pressure Relief Valves
Welding Symbols: A Useful System or Undecipherable Hieroglyphics?
What Should You Do Before Starting Boilers After Summer Lay-Up?
Why? A Question for All Inspectors


Suggested Daily Boiler Log Program


Summary: The following article is a part of National Board Classic Series.


The following instrument readings, as appropriate to the specific boiler system, need to be taken daily for low-pressure heating boilers and at least once per eight-hour shift for high-pressure boilers. These readings must be recorded in the boiler log.

NOTE: It is very important that the boiler log be kept in a consistent format, in order for trends to be perceived and followed with preventive action. Standard forms are available for this purpose; however, the log may be more useful if the log form is customized for the particular installation.

GENERAL

  • Air compressor, control pressure (psig)
  • Outdoor air temperature (degrees F)
  • City water supply pressure (psig)

BOILER

  • Boiler(s) in service
  • Fuel in use
  • Operating time (hours)
  • Operating cycles(number)
  • Amount of fuel on hand
  • Boiler water level (normal, low, high)
  • Firing level (rate)
  • Flame condition (observed)
  • Boiler pressure (psig)
  • Boiler water temperature, hot water (degrees F)
  • Stack temperature, net (degrees F)

GAS FUEL

  • Pilot gas pressure (inches WC)
  • Burner gas pressure (ounces/square inch or psig)
  • Gas used (cubic feet)

OIL FUEL

  • Oil pump in service
  • Vacuum at oil pump (inches Hg)
  • Oil pressure at pump (psig)
  • Oil pressure at burner (psig)
  • Oil pressure at regulating valve (psig)
  • Atomizing medium pressure, air, steam (psig)

CONDENSATE SYSTEM (steam boilers)

  • Boiler feed pump in service
  • Condensate return temperature (degrees F)
  • Water level in condensate tank (normal, low, high)
  • Make up water rate (gallons)

FORCED HOT WATER CIRCULATION SYSTEM

  • Circulating pumps in service
  • Return water temperature (degrees F)
  • Water level in expansion tank (normal, high, low)

BOILER WATER TREATMENT

  • Level of chemicals in treatment tank
  • Treatment pump in service (low, normal)
  • Boiler water samply taken

MAINTENANCE OR REPAIR OPERATIONS

  • These operations should be recorded in the log


Editor's note: Some ASME Boiler and Pressure Vessel Code requirements may have changed because of advances in material technology and/or actual experience. The reader is cautioned to refer to the latest edition and addenda of the ASME Boiler and Pressure Vessel Code for current requirements.





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