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Heat Recovery Systems

You need a constant stream of hot water to keep your production line going. That means you need to keep heating the process water you're bringing into that same production line. Doing this requires a lot of energy, which in turn incurs heavy utility costs. Heat recovery systems aim to curb your utility expenses without compromising your company's throughput.  

R.W. Martin Process Water, in partnership with MaxiMizer Systems and Cain Industries, has the heat recovery solution for you.

How do heat recovery systems work? Heat recovery systems take the heat that you've already produced out of your waste output and transfer it to the process water that you're bringing into production, cleanly and efficiently. This is heat from waste water and exhaust that would normally be lost to the sewer or the atmosphere. 

Heat recovery systems save you money and help you lessen your environmental footprint. 


Heat Recovery Systems from R.W. Martin Process Water
 
 
 
 

Solutions Available from R.W. Martin Process Water

Heat Recovery Systems from MaxiMizer

MaxiMizer Boiler Stack Heat Recovery

Overview

MaxiMizer Boiler Stack Heat Recovery System is designed to recover heat from combustion sources with atmospheric burners from 200 to 6,400 MBH.

The system will generate process water to 140°F utilizing the existing exhaust gas heat. A heat exchanger can be integrated to provide potable water.

The system is designed to operate with low static gas pressure drop for safe, automatic operation on atmospheric, or power burners.

Combustion Sources

Steam boilers, hot water boilers, dryers and ovens

Features

• Turn Key System best suited to maximize your performance
• PLC based monitoring provides metered energy recovery
• Free Energy for decades
• Remote system access to ensure optimal operation monitoring
• System pays for itself many times over

MaxiMizer Boiler Stack Heat Recovery

MaxiMizer Waste Water Heat Recovery System

Overview

The MaxiMizer Heat Recovery System captures waste energy from hot water normal lost to drain. The Shell & Tube system elevates incoming clean water to within 10°F of the waste water temperature providing Free Heat. The heat exchanger is 100% stainless steel construction.

Features

• The pressure controlled back flush system for self-cleaning ensures the system operates at optimal recovery.
• PLC Control System monitors recovery rates and can be remotely accessed to monitor performance.
• Captures and reuses waste heat normally lost to drain
• Your facility will increase profits and reduce CO2 emissions
• A custom designed system ensures maximum performance

MaxiMizer Heat Recovery System

Solutions Available from R.W. Martin Process Water

Boiler Economizer Systems from Cain

Cain B Series Boiler Economizer

Overview

The B Series boiler economizer is comprised of 14 standard models. An “off the shelf” unit, it is designed primarily for boilers with round stacks and a combustion capacity of 40 to 800 BHP with entering gas temperatures between 300° and 700°F.

The standard stack connections can be easily modified to fit specific boiler stacks with 10″ to 34″ diameters, alleviating the cost of stack adapters. The units come standard either with 4 or 6 fins per inch (fpi) spacings for operation with No. 2 fuel oil and/or natural gas and depending on the efficiency of the combustion.

With its lightweight design and exclusive AL-FUSE™ heat transfer surface, installation is fast and costs are kept to a minimum. Use the chart on the next page to select the B Series unit that is best suited to your application.

• Minimum Cost • Easy Installation • Maximum Savings

Combustion Sources

Steam boilers and hot water boilers

Boiler Exhaust Application

• Capacity: 40 – 800 BHP
• Entering gas temps: 300°F – 700°F
• Heat sink types: Boiler feedwater, hot water return, hot water storage tank, condensate tank, process water

Features

• Hinged stainless steel access door panels
• Internal thermal expansion design
• Mounting flanges for bolting to mating flanges or adapters
• Stainless steel internal exhaust bypass assembly
• Quick release tension latches for doors
• Optional sootblower assembly

Cain-B Series Boiler Economizer

Cain EM Series Boiler Economizer

Overview

The EM is designed to recover heat from combustion sources with atmospheric burners from 200 to 6,400 MBH.

Ten standard models are designed to operate with low static gas pressure drop for safe, automatic operation on atmospheric, or power burners.

Built to rigid ASME quality control standards

Combustion Sources

Steam boilers, hot water boilers, dryers and ovens

Boiler Exhaust Application

• Capacity: 200,000 – 6,400,000 BTU/hr input
• Entering gas temps: 300°F – 700°F
• Heat sink types: Boiler feedwater, hot water return, hot water storage tank, condensate tank, process water

Features

• Built to rigid ASME quality control standards
• Highest heat transfer efficiency with AL-FUSE™ finned tubing
• Quick release access door latches for ease of maintenance/inspection
• Packaged design includes all basic control hardware to properly operate unit in the field
• Adjustable internal stainless steel exhaust gas bypass
• Guaranteed heat recovery performance

Cain-EM Series Boiler Economizer

Cain FCR-FIN Series Boiler Economizer

Overview

The FCR is a custom-designed heat exchanger which can be applied in confined areas and is offered in stainless steel, carbon steel, or AL-FUSE™ finned tubing.

Design flexibility allows specific engineering requirements to be met such as fin spacing for fouling conditions and low gas pressure drops.

Custom designed to meet space and performance demands

Combustion Sources

Steam boilers, hot water boilers, hot oil heaters, combustion sources with round stack diameters 4″-36″ and a maximum liquid flow rate of 50 gpm.

Boiler Exhaust Application

• Capacity: 40 – 500 BHP (50 -10,000 SCFM)
• Entering gas temps: to 800°F
• Heat sink types: Boiler feedwater, process water, thermal fluids, run-around systems

Features

• Internal thermal expansion design
• Cylindrical heat transfer coil(s) design
• Mounting flanges for bolting to mating flanges
• Quick release tension latches
• Stainless steel internal bypass
• Condensate drain catch ring assembly
• Hinged stainless steel access door panels

Optional Equipment

• Exclusive manual or timed automatic ring-type sootblower assembly
• Stack corrosion control assembly including temperature-regulated modulating exhaust gas bypass and remote indicators
• Circulating pump kit to maintain desired liquid flow rate
• Vertical pressurized storage tank, to create a “bulge” or temporary heat sink in the event of no-water-flow conditions
• Liquid temperature control assembly including temperature-regulated modulating exhaust gas bypass and remote indicators

Cain-FCR-FIN Boiler Economizer

Cain RTR Series Boiler Economizer

Overview

The RTR is ideal for large steam boilers and hot water boilers. The RTR is typically used to preheat boiler feedwater, process water, hot oil, or cold water condensing applications.

A variety of heat transfer surfaces are available, including: 316L stainless steel, carbon steel, duplex stainless steel, and stainless steel tube with aluminum bonded AL-FUSE™ product (see the example RTR product specification for materials).

The exclusive, standard feature, internal stainless steel exhaust gas bypass can be used to temper the exiting gas for stack corrosion control or to maintain water temperatures when too much heat is available.

BTU/hr input to 250,000,000 – Entering exhaust temps to 800°F

Combustion Sources

Steam boilers, hot water boilers, and hot oil heaters with inputs up to 250,000,000 BTU/hr.

Boiler Exhaust Application

• Capacity: to 250,000 lb/hr steam
• Entering gas temps: 300°F – 800°F
• Heat sink types: Boiler feedwater, makeup water, hot water return, hot water storage tank, condensate tank, process water

Features

• Internal expansion design
• Most models have no pressure welds in the gas stream
• Mounting flanges for bolting to mating flanges/adapters
• Condensate drain catch ring assembly
• 10 ga. structural exterior
• Stainless steel interior
• 2″ factory insulation
• Removable access doors
• Stainless steel bypass
• Header manifold for high liquid flow
• Exclusive Cain compression fittings between finned tubes and the liquid manifolds for easy tube removal that requires no welding
• Internal stainless steel bypass diverter controls either exiting exhaust gas or liquid temperatures
• Flexible stainless steel hose allows travel of the sootblower carriage
• Sootblower controller maintains air/steam pressure during blowdown operation

Optional Equipment

• Modulating bypass actuator assembly for automatic operation
• Hinged inspection doors for immediate access
• Timed automatic sootblower assembly provides blowdown without scheduling personnel
• Stack corrosion control assembly
• Liquid temperature control assembly
• Structural support stand

Cain-RTR Series Boiler Economizer

Solutions Available from R.W. Martin Process Water

Exhaust Economizer Systems from Cain

Cain CXL Series Exhaust Economizer

Overview

The CXL Single Stage Condensing Exhaust Economizer is specifically designed to recover sensible heat from within the exhaust and, more importantly, to also recover additional valuable latent heat as the exhaust is condensed.

Typically the recovered heat will be transferred to the cold makeup or process water, thereby increasing the overall efficiency and lowering the fuel demand.

As the exhaust temperature is dramatically reduced to 120°F – 170°F, resulting condensation is safely captured and drained from the economizer and away from the boiler.

Recovers both sensible and latent heat increasing the overall efficiency

Combustion Sources

Steam boilers, hot water boilers, and hot oil heaters with inputs up to 250,000,000 BTU/hr. (Natural gas fired)

Boiler Exhaust Application

• Capacity: to 250,000 lb/hr steam
• Entering gas temps: 300°F – 800°F
• Heat sink types: makeup water and process water

Features

• Internal expansion design
• Mounting flanges for bolting to mating flanges/adapters
• Condensate drain catch ring assembly
• 12 gauge stainless steel exterior
• Stainless steel interior
• 2″ factory insulation
• Removable access doors
• Stainless steel bypass
• Stainless steel header manifold for high liquid flow
• Compression fittings between finned tubes and the liquid manifolds for easy tube removal that requires no welding

Cain-CXL Series Exhaust Economizer

Cain DXL Series Exhaust Economizer

Overview

The DXL Two Stage Condensing Exhaust Economizer is specifically designed to recover sensible heat from within the exhaust and, more importantly, to also recover additional valuable latent heat as the exhaust is condensed.

What makes the DXL Boiler Economizer unique is that it recovers heat in two stages. The first stage will preheat boiler feedwater and the second stage will preheat boiler make-up water. Final exhaust temperatures leaving typically range from 120°F – 170°F.

This recovered heat will be transferred to feedwater and makeup water, thereby increasing the overall efficiency and lowering the fuel demand.

Preheats feedwater and makeup water for greater efficiency

Combustion Sources

Steam boilers, hot water boilers, and hot oil heaters with inputs up to 250,000,000 BTU/hr. (natural gas fired)

Boiler Exhaust Application

• Capacity: to 250,000 lb/hr steam
• Entering gas temps: 300°F – 800°F
• Heat sink types: Boiler feedwater, makeup water, hot water return, hot water storage tank, condensate tank and process water

Features

• Internal expansion design
• Mounting flanges for bolting to mating flanges/adapters
• Condensate drain catch ring assembly
• 12 ga. stainless steel exterior
• Stainless steel interior
• 2″ factory insulation
• Removable access doors
• Stainless steel bypass
• Stainless steel header manifold for high liquid flow
• Compression fittings between finned tubes and the liquid manifolds for easy tube removal that requires no welding

Cain-DXL Series Exhaust Economizer


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