BOILER ECONOMIZER SYSTEMS
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Cain Industries offers an extensive selection of boiler economizers specifically designed to recover the lost Btu exiting from exhaust stacks and preheat water. Our broad line of economizers covers the spectrum of boiler sizes, ranging from very small hot water boilers with burner inputs of 200,000 Btu/hr to the large boilers delivering steam at 250,000 lb/hr. In addition, Cain produces complete lines of boiler feedwater condensate tank and pump systems, exclusive sootblower assemblies, and unique modulating internal exhaust gas bypass systems.
Exhaust Applications
• Steam Boilers
• Hot Water Boilers
• Hot Oil Heaters
• Ovens and Dryers
• Specific Combustion Sources
Equipment Variety
• Boiler Economizers
• Sootblowers
• Circulating System Components
• Storage Tanks
• Modulating Internal Exhaust Gas Bypass
Assembly
System Function
Btu which is lost out the stack from combustion and into the atmosphere is transferred from the exhaust stream via a Cain economizer. This lost Btu is now captured and saved to various heat sinks such as boiler feedwater, cold makeup water, process water, swimming pool water, glycol, and thermal fluids. Combustion source fuel types including natural gas, propane, digester gas, diesel fuel, No.2-6 fuel oil, and coal are all heat sources which can be retrofitted with Cain heat exchangers.
Proposal Considerations
Consider Cain for cylindrical or rectangular stack connections, large or small boilers, a particular pinch point requirement, stack or liquid temperature control, special heat sink requirements, special heat transfer metallurgy requirements, specific maintenance concerns, optional equipment requirements, installation space and weight concerns, package system requirements.
Anticipated Results
• Tremendous fuel savings typically pay for equipment and installation within 1 to 3 years of average use.
• Pollution reduction due to lowered annual
fuel usage.
• Longest exchanger life expectancy
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PRODUCT APPLICATION:
Combustion Sources: Steam boilers, hot water boilers, dryers, ovens, hot oil heaters
RTR
Combustion Capacity: 5,000 - 250,000 pph (300,000,000 Btu/hr maximum input approx.)
Entering Gas Temps.: 350 - 1,250°F
Heat Sink Types: Boiler feedwater, makeup water, hot water return hot water storage tank, condensate tank, process water, potable water
FCR
Combustion Capacity: 50 - 10,000 scfm
Entering Gas Temps.: 350 - 1,400°F
Heat Sink Types: Boiler feedwater, makeup water, process water, potable water, thermal fluids, run-around systems.
B-SERIES
Combustion Capacity: 40 to 800 Bhp
Entering Gas Temps.: 350 - 700°F
Heat Sink Types: Boiler feedwater, makeup water, hot water return, hot water storage tank, condensate tank, process water, potable water
EM
Combustion Capacity: 200,000 - 6,400,000 Btu/hr input
Entering Gas Temps.: 350 - 700°F
Heat Sink Types: Boiler feedwater, makeup water, hot water return, hot water storage tank, condensate tank, process water, potable water
FTR
Combustion Capacity: 100 - 30,000 scfm Entering Gas Temps.: 350 - 1,400°F Heat Sink Types: Boiler feedwater, makeup water, process water, hot water return, potable water, thermal fluids, run-around systems
PACKAGED BOILER FEED SYSTEM
Cain Industries produces feed systems with feedwater pumps, water softeners, and chemical feed all pre-piped and pre-wired. This packaged system minimizes installation and startup expenses.
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