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Preventing Equipment Failures. Boilers Electrical Distribution Systems Air Conditioning Equipment. Any Questions?. Then let’s get started !. Preventing Equipment Failures. Boiler Maintenance. What is a boiler?.
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Preventing Equipment Failures Boilers Electrical Distribution Systems Air Conditioning Equipment
Any Questions? Then let’s get started! The Hartford Steam Boiler Inspection and Insurance Company
Preventing Equipment Failures The Hartford Steam Boiler Inspection and Insurance Company
Boiler Maintenance The Hartford Steam Boiler Inspection and Insurance Company
What is a boiler? A closed vessel in which water is heated, steam is generated, or steam is superheated for use external to itself by the application of heat. The Hartford Steam Boiler Inspection and Insurance Company
Boiler Categories • Power Boiler • High Temperature Hot Water Boiler • Heating Boiler The Hartford Steam Boiler Inspection and Insurance Company
Watertube Boilers Components: • Steam drum • Water (mud) drum • Tubes The Hartford Steam Boiler Inspection and Insurance Company
Watertube Boilers The Hartford Steam Boiler Inspection and Insurance Company
Firetube Boilers The Hartford Steam Boiler Inspection and Insurance Company
Firetube Boilers Components: • Shell (Drum) • Tube Sheets, Front & Rear • Tubes (Flues) • Furnace • Stays (Stay Bolts) The Hartford Steam Boiler Inspection and Insurance Company
Firetube Scotch Marine The Hartford Steam Boiler Inspection and Insurance Company
What could possibly go wrong with my boiler? Let’s take a look at some typical boiler failures!
Major Causes of Boiler Failures • Low Water • Poor Maintenance • Failure of Controls and Safety Devices The Hartford Steam Boiler Inspection and Insurance Company
Low Water • Results in over temperature condition • Can cause extensive damage to boiler Or • Catastrophic failure of the boiler The Hartford Steam Boiler Inspection and Insurance Company
Poor Maintenance The Hartford Steam Boiler Inspection and Insurance Company
Failure of Controls and Safety Devices The Hartford Steam Boiler Inspection and Insurance Company
Preventing Boiler Failures • Proper Operation • Proper Maintenance • It’s all up to you! The Hartford Steam Boiler Inspection and Insurance Company
Boiler Operation • Prepare the boiler for operation • Starting the boiler • Regular operation • Controls and safety valves • Feedwater treatment The Hartford Steam Boiler Inspection and Insurance Company
Boiler Logs • Why use them • What to include • How to use them The Hartford Steam Boiler Inspection and Insurance Company
Boiler Codes • ASME Boiler & Pressure Vessel Code • ASME Controls and Safety Devices • National Board Inspection Code • Jurisdictional Rules The Hartford Steam Boiler Inspection and Insurance Company
Jurisdictional Rules • Inspection Frequencies • Inspection types • Installation requirements • Rules for repair The Hartford Steam Boiler Inspection and Insurance Company
Housekeeping • Safety • Fire Prevention • Combustibles • paint, oil, gas and cleaning products • Flammables • wood, paper and cardboard • keep at least 8 to 10 feet from the boiler • Emergency Access The Hartford Steam Boiler Inspection and Insurance Company
Controls & Safety Devices • Maintain control over boiler operation • Monitor operating conditions • Protect boiler from failure The Hartford Steam Boiler Inspection and Insurance Company
Controls and Safety Devices Controls and safety devices are installed on boilers to monitor, indicate, regulate, or control: • Pressure • Temperature • Water Level • Combustion • Auxiliary Equipment The Hartford Steam Boiler Inspection and Insurance Company
Pressure Gages • Visual display of operating pressures. • Most accurate in their mid-range. • Dial range: • Power Boilers: 1.5 – 2 times lowest safety valve setting The Hartford Steam Boiler Inspection and Insurance Company
Control Water Seals • Most controls are designed to be subjected to water pressure. • A “loop” or trap is installed to protect controls from direct contact with steam. • Condensate fills the lines during normal operation. The Hartford Steam Boiler Inspection and Insurance Company
Siphon Loops The Hartford Steam Boiler Inspection and Insurance Company
Safety Valve • Body • Seat • Disc • Stem • Spring • Blow-Down Ring • Huddling Chamber The Hartford Steam Boiler Inspection and Insurance Company
Low Water Fuel Cutoffs The Hartford Steam Boiler Inspection and Insurance Company
Low Water Fuel Cutoffs The Hartford Steam Boiler Inspection and Insurance Company
Low Water Fuel Cutoffs The Hartford Steam Boiler Inspection and Insurance Company
Low Water Fuel Cutoffs The Hartford Steam Boiler Inspection and Insurance Company
Conclusion • Follow proper operating procedures • Regular maintenance • Be prepared • Above all …Work Safely! The Hartford Steam Boiler Inspection and Insurance Company
Electrical Maintenance The Hartford Steam Boiler Inspection and Insurance Company
Electrical Distribution System The Hartford Steam Boiler Inspection and Insurance Company
Common Electrical Failures “Figure illustrates specific causes of electrical failures and the individual contribution of each cause. This list is based upon twenty years of HSB claims data.”
Preventing Electrical Failures • Clean • Cool • Dry • Tight The Hartford Steam Boiler Inspection and Insurance Company
