Overfire Air Windbox Assemblies - RV Industries

R-V INDUSTRIES, INC.Power Plant EquipmentProviding the best combustion systemsand components in the world.

Developing New Products andSolutions To Meet Industry NeedsR-V Industries, Inc. has designed and manufactured equipmentfor the electric utility industry for 35 years. Our world classquality has defined R-V as a preferred supplier of windboxequipment and assemblies.R-V is the supplier of choice by most boiler and burner OEM’s fortangentially-fired furnace projects. As a result we have been akey partner for over 100 coal low NOx retrofits, oil-fired upgrades,and gas conversions on over 50,000 megawatts.R-V provides more than just replacement and retrofit parts.We offer mechanical upgrades and performance solutions. Wecontinue to develop new products and solutions to meet industryneeds.2 • R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT

Performance Evaluationand Problem ResolutionPerformance Evaluationsand Recommendations• Emission control (low NOx, etc.)• Windbox resizing for improved air flow control• Controls support• General operation consultation• Slagging and corrosion issues• Fuel change effects• Opportunity Fuels: Pet Coke, BiomassMechanical Problem Resolution• Tilt binding resolution• Lower maintenance designs• Damper upgrades• Coal pipe loading problem resolution• Nozzle tip pluggage and overheating• Extended life designsR-V INDUSTRIES, INC. POWER PLANT EQUIPMENT • 3

Experts in Mechanical and PerformanceUpgrades for Tangentially-Fired FurnacesSOFA WindboxesMain WindboxesStationary Coal NozzlesGas Nozzle TipsAir Nozzle TipsOil Nozzle TipsCoal Nozzle TipsPilot Torch NozzlesDiffusersTilt MechanismsGraphite Damper BearingsOpposed Blade UpgradesComplete Damper FramesOil Guns & TipsGun Retract MechanismsRetractable Spark IgnitorsAccess DoorsObservation DoorsRiffle ElementsFlexible Drip ScreensSeal PlatesBowl Mill PartsWhizzer Wheel AssembliesMill Fire Detection System4 • R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT

Tangentially-Fired Windbox AssembliesR-V Industries, Inc. designs and manufactures complete windboxassemblies for coal, oil, and gas-fired tangential furnaces.Our expertise includes both mechanical and performance design.New windboxes are fitted with the latest components foremission control and long term reliability.Separated overfire air windboxes with directional aircontrol. Available with automatic remote adjustment ofvertical tilt and horizontal yaw.Replacement windbox for a 450 MW oil-fired unit.Coal-fired windbox.R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT • 5

Proprietary self-cooling Thermal-Guard designextends performance life of tangential burners.Aerodynamic thermalradiation barrierPivot pindesign forfurnace sideremovalVariouserosionprotectionoptionsContouredcornersSolidly welded innerannulus reinforcementassures rigidityShielded corner weldsThermal Guard design available for coal, oil, gas, auxiliary air, CCOFA and SOFA nozzle tips.8 • R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT

AIRNozzle Tip ComparisonAIRSuperior Distortion ProtectionOEM ProblemAIRSuperior Distortion ProtectionSolutionAIRAIRAIRTypical OEM DesignTilting results in loss of radiation protectionand accelerated outer shell thermal distortion.R-V’s Thermal-Guard Outer Shell Designdirects high velocity boundary air overexposed surfaces, increasing radiationprotection as tips are tilted, reducing thetemperature gradient across platesAIROEM vs. Thermal Guard Nozzle After 1 Year TestAIROEM “AERO” StyleMaterial: 253MAThermal GuardMaterial: 309 S/SR-V INDUSTRIES, INC. POWER PLANT EQUIPMENT • 9

Oil Firing EquipmentR-V Industries, Inc’s oil firing equipment is available forboth tangential and wall-fired burner designs.Ignitor Assembly forTangential-Fired BurnersRetractable High Energy Spark IgnitorOil Guns and AtomizersDouble Barrel Oil Gun for Non-Tilting ApplicationsDouble Barrel Oil Gun for Tilting ApplicationsAtomizers, Nozzle Bodiesand Cap NutsConcentric Oil Gun for Tilting Applications10 • R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT

Riffle EquipmentRiffle ElementsWith three design choices, R-V Industries Inc’s riffle elements providethe custom quality you have come to rely on. Choose from theoriginal equipment, R-V’s mid cut, or coarse cut models. Use the midcut and coarse cut for minimum system resistance and maximumpulverizer capacity. Wear resistant options available for elements andhousings.Original EquipmentMid CutCoarse CutAdjustable RifflesAdjustable coal riffle assemblies allow you toredistribute coal flow online without restrictingprimary air flow. Adjustable riffles are a perfectcompliment to online coal flow measurementsystems. Designs are available for two way andthree way applications.R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT • 11

Pulverizer EquipmentR-V Industries, Inc. offers many replacement parts for the bowlmill design, exhauster and fuel delivery system including:• Separator bodies and tops, convertor heads and vanes, deflectorrings and blades, classifiers, cones, bowl extension rings,restriction angles, bowl wear plates, clamping rings and journalcomponents.• Whizzer wheel components and assemblies – original equipmentor ceramic-lined.• Intake pipes, exhauster inlet elbows, riffle elements, distributorhousings, ceramic-lined orifices, and coal piping systems.Mill Fire Detection• Maintain Unit AvailabilitySensor Head Assembly• Minimize Costly Derates• Reduce Equipment Damage• Enhance SafetyR-V’s Mill Fire Detection System (MFDS) is an earlywarning system based on the sensing of visible orinfrared light inside the mill enclosure. Unlike COmonitoring, the MFDS provides rapid response andcontinuous monitoring of all mills concurrently.12 • R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT

Ash Hopper Seals and ShieldsSeal PlatesFlexible Drip ScreensExpansion type seal plates in gradessuch as 316(L) s/s, Inconel 600,Inconel 601, Inconel 625, AL6XN andCarpenter 20.4”2”VARIOUS SPACINGS6” PITCHFlexible drip screens are available in severalgrades of material, in both single and doublelayer.5/8”2-5/8” PITCHThree most common pitch arrangementsshown above. Custom pitches availableupon request.Woven Wire Drip ShieldsOriginal equipment woven wire drip shields aremost commonly supplied in 430 s/s and 316 s/s.R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT • 13

Furnace Observation and Access DoorsDirect Replacements and Custom SizesR-V Industries, Inc. has a full line of furnace doors includingdirect replacements for all OEM designs. All furnace doorsare available with seal boxes and tube panels as an option.Styles are adaptable to any OEM boiler design.Observation Doors• 4” x 10”• 6” x 12”• 5 1/2” rounded• 3” and 6” for pressurized furnaceAccess Doors• 15” x 21”• Hinged access doors (various sizes)• Water cooled• Non-insulated hinged door• Mineral wool and refractory insulated4” x 10” Observation DoorWindbox Doors• Side access• Compartment inspection glass portsHinged Access Door5-1/2” Round Observation DoorObservation Door forPressurized Furnace3” and 6” AvailableWindbox Side Access Door14 • R-V INDUSTRIES, INC. POWER PLANT EQUIPMENT

“To Supply Superior Products and Servicesat a Competitive Price With Integrity”Corporate HeadquartersHoney Brook, PAR-V Industries, Inc. is a uniquely diversified engineering and manufacturingcompany. Founded by Ronald L. Putt and Victor D. Dodd in 1974, R-V hasbeen dedicated to providing complete engineering and manufacturingservices for over 35 years. We specialize in custom fabrication and are experiencedin producing biomedical, chemical, food and beverage, fossil power plant,nuclear, oil and gas, and paper mill equipment.Headquartered in Honey Brook, PA, we take pride in the quality products wemanufacture. We are committed to quality and strive for service excellence withcustomers ranging from small engineering firms to Fortune 500 companies.R-V is currently certified with SHARP (Safety & Health Achievement RecognitionProgram), awarded through OSHA. This rating has been achieved by less than35 other companies in Pennsylvania. SHARP recognizes all employers whooperate an exemplary safety and health management system. Our acceptanceinto SHARP by OSHA is an achievement of status that singles us out amongbusiness peers as a model for worksite safety and health.We offer:• Custom design and fabrication services• World class manufacturing capabilities• ASME and NQA-1 certified weldingContact our Power Plant Equipment sales teamfor more information.Phone: (610) 273-2457Fax: (610) 273-3361E-mail: sales@rvii.comWebsite: www.rvii.comR-V INDUSTRIES, INC. POWER PLANT EQUIPMENT • 15

584 Poplar Road, Honey Brook, PA 19344Phone: 610-273-2457Fax: 610-273-3361Website: www.rvii.comCopyright © 2009 All rights reserved.