smart solutions for combustion and environment

Oil Fired Igniters, Pilots and Oil Guns for Power Plants and Utility Boilers

Oil Fired Igniters, Pilots and Oil Guns for Power Plants and Utility Boilers

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Selection Table based on Heat Release, Flame Length, Tube Diameter and Mode of Operation

Hegwein Fuel Oil Igniters with Lower Heat ReleaseHegwein Dual Fuel IgnitersHegwein Fuel Oil Igniters for Hazardous Areas

l Compact design with integrated ignition transformer and flame monitor/burner control

l Built-in flame ionization electrode, ideally locatedl No high-voltage cable required on sitel Guaranteed electromagnetic compatibilityl Rugged, low-maintenance designl Sizes ranging from 100 kW to 3.6 MW

(333,000 BTU/hr to 12,000,000 BTU/hr)l Custom tube lengths available in 10-mm incrementsl For extra light fuel oil (diesel). Dual fuel igniters can also handle

either propane/butane or natural gasl Extremely tight and long pilot flame - no automatic retraction

system typically requiredl Class 1, 2 or 3 igniters according to NFPA also availablel Smoke free flamel Also available for marine diesel operation.

Please request our detailed brochure on oil and dual fuel fired ignitors.

Hegwein Oil Guns

l Immediate light-upl Even spray pattern due to a special nozzle design proved in various

applicationsl Optimized mixing of fuel oil and combustion air for complete burn-

outl Stable flame with almost smoke-free combustion and low emissionsl Taylor-made to clients requirements:

- length - wirler diameter - mounting plate dimensions

l Reliable operation.

Questions regarding the proper selection of an igniter?Request our Basic Technical Information. You will find valuable references to the selection of a suitable igniter and its integration into the main burner. Vari-ous plant photographs show the broad palette of the possible applications of our igniters and pilots in all fields of the industry.

Heat release in oil mode max. 100 kW max. 300 kW max. 1000 kW max. 3600 kW max. 1000 kW max. 1000 kW

Heat release in gas mode - - - - max. 400 kW max. 1000 kW

Flame length in oil mode max. 500 mm max. 750 mm max. 2200 mm max. 3000 mm max. 2000 mm max. 2500 mm

Flame length in gas mode - - - - max. 1500 mm max. 2000 mm

Tube diameter 50 mm 70 mm 90 mm 160 mm 90 mm 135 mm

inoilmodeairatomization l l l l l l

withintegratedsparktransformerand flame monitor

forintermittentoperation (in oil mode)

forcontinuousoperation (in gas mode)

ZAEL0... ZAEL1... ZAEL2... ZAEL4... ZAZL2... ZAZL3...

explosionproofigniterhead frZone1/forzone1,IP65

standardZAVEX/EL0... ZAVEX/EL1...

explosionproofigniterhead inII3GEExnCIICT5

forzone2,IP65standardZXAEL0... ZXAEL1... ZXAEL2... ZXAEL4...

Overview

Oil Fired Igniters

Check List for an Igniter Inquiry

Plant Specification

Kind of boiler or furnace: ..................................................................................................................................

Combustionsystem ...................................................................................................................................

(e.g.fluidizedbed,fluegasreheating/ductburnersetc.)

Kind of burner (single fuel or multi fuel): ..................................................................................................................................

Furnace atmosphere: corrosive ( ) yes

( ) no

temperature range from................. to.................

Burner/igniterinstalledinEx-zone ()yes

( ) no

Applicablestandardsandcodesofpractice: ()EN676(forceddraughtburners) ()EN746/2(ind.thermoproc.equipm.) ()TRD411/412(steamboilers) ()IEC79-10(Ex-zones) ()EN161(shut-oftvalves),gas ()EN298(burnercontrolsforgas) ()EN230(burnercontrolsforoil) ()NFPA

Igniter Specification

Requiredheatrelease: oil:..................................kW

gas:................................kW

Required flame length: .................... mm

Oil ( ) extra light fuel oil (diesel)

( ) marine diesel

Gastype(fordualfueligniters): ()naturalgas

( ) propane/butane

Available oil pressure: .................... bar

Available gas pressure: .................... mbar

Available combustion air pressure: .................... mbar

Availableatomizationairpressure: ....................bar

Furnacepressure,+/- ....................mbar

Tubelengthofigniter: ....................mm

Flame monitor for continuous operation required: ( ) yes

(only ZAZL... in gas mode) ( ) no

Supplyvoltageandfrequency: ....................V50/60Hz

IP65protectionrequired: ()yes

( ) no

Transformerpartwithspecialpainting: ()yes

( ) no

Burner arrangement drawing available: ( ) yes

( ) no

HazardousareaInstallation ()Zone1(Div1)

()Zone2(Div2) 3

Oil Fired Igniters for Extra Light Fuel Oil (Diesel)

Heat Release max. 1000 kW Heat Release max. 3600 kW Model ZAEL2... Model ZAEL4...Nozzlesizes 40-80kg/h Fuel oil flow max.300kg/h

Tube 90 mm Tube 160 mm

Flame length 600 2200 mm Flame length max. 3000 mm

IgnitertubelengthL 360 5000 mm IgnitertubelengthL 360 5000 mm

Fuel oil inlet 3/8 Oil inlet 3/8

Fuel oil pressure 5 bar Fuel oil pressure 5 bar

Compressedairinlet 1/4 Compressedairinlet 1/2

Compressedair 5 bar Compressedair 5 bar

Air inlet 2,mayberotated4timesinstepsof90 Air inlet DN100,mayberotated4timesinstepsof90

Air pressure 5mbar,dependingontubelength Air pressure 5mbar,dependingontubelength

Features withintegratedsparktransformerandflame monitor for intermittent operation Featureswithintegratedsparktransformerandflame monitor for intermittent operation

Transformer part Transformer part

Ignition 2x5kV,electrodetoelectrode Ignition 2x5kV,electrodetoelectrode

Ambient temperature -20Cupto+60C Ambient temperature -20Cupto+60C

Protection IP54 Protection IP54

Operation Example Operation Example

Heat release 800kW Heat release 3600kW

Oil pressure 3.5 barg Oil pressure 3.5 barg

Compressedair 3 barg Compressedair 3 barg

Ignitionair 120 m3/h @ 10 mbarg Ignitionair 300 m3/h @ 10 mbarg

3000 mm2000 mm

Fuel Oil Flow Fuel Oil Flow

For ignition of large coal or heavy fuel oil fired burners in utility boilers

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Oil Guns

OilGunRetraction

OilInlet

HESITip

OilGunAssembly

Swirler

Mounting Plate Assembly

HESIAssemblywithRetraction

HESIElectronics

Diffuser/ Swirler View

Our experience gathered in several decades of ig-niter manufacturing has gone into the design of these products.

Featuresl Immediatelight-up

l Evenspraypatternduetoaspecialnozzledesignprovedinvariousap-plications

l Optimizedmixingoffueloilandcombustionairforcompleteburnout

l Stableflamewithalmostsmoke-freecombustionandlowemissions

l Reliable operation.

Oil Gun Series D with Mechanical Atomization Oil Gun Series L with Air or Steam Assisted Atomization

Oil gun model D I D II D III

Fueloilflowinkg/h 1300 2000 3000

HeatreleaseMW 15 24 36

Fuel Oil Flow

Oil gun ,odel L I L II L III

Fueloilflowinkg/h 1200 2000 3500

HeatreleaseMW 14 24 42

Fuel Oil Flow

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6Oil Gun Specification

Requiredheatrelease ........................kW

orcapacity ........................kg/h

Atomizationby ()mechanical,oilpressure................bar

( ) air and oil pressure ................................ bar/bar

( ) steam and oil pressure ................................ bar/bar

steamtemperature................C

( ) other

Oil type ( ) extra light fuel oil

()lightfueloil,viscosity........................cSt

( ) heavy fuel oil

Sprayangle ()standard80

()other........................

Length of oil gun from mounting plate ........................ mm

Swirler(diffuser)diameter ........................mm

Flexible version required (tilting) ( ) yes

( ) no

Oil Gun Retraction Unit ( )

Force ()2800N

()other........................N

Stroke ()300mm

( ) other ........................ mm

Limitswitches ()1xSPDT

()1xDPDT

()2xDPDT(option)

HESI Electronics ( )

Supplyvoltage ........................V,50/60Hz

()12J/spark

()16J/spark

()20J/spark

HESI Retraction Unit ( )

Force ()600N

()other........................N

Stroke ()300mm

( ) other ........................ mm

Limitswitches ()1xSPDT

()1xDPDT

()2xDPDT(option)

Optical Flame Monitor ( )

Mountedonbackplate

Check List for an Oil Gun Inquiry

Oil Guns

Basic Components

Operation withfueloil#0,#1or#2(diesel)

Pressureatomization at 30 bar nominal

Turndown 1:1.5 (with oil pressure)

Spray angle 82

Diffuserorswirlerdiameter according to specification 200 to 300 mm

Cylinder 21/40/80mm

Force 300upto3000N

Stroke 200/300/500mm(8/12/20)

Air pressure 5 to 7 barg (70-100 psig)

Limit switches 2limitswitchesSPDT,dualairsolenoidcoils

Voltage 115or230VAC,50/60Hz

Output energy 16J/sparkat4sparks/s

Output voltage 1800V

Dutycycle 300 s / 50%

Transformerhousingprotection class IP65

Flexible cable operating voltage 5000 V

Cylinder 21/40mm

Force 300upto1000N

Stroke 200/300mm(8/12)

Air pressure 5 to 7 barg (70-100psig)

Limit switches 2limitswitchesSPDT,singleairsolenoidcoil

Oil Guns

Rigid Oil Gun with Mechanical Atomization

Pneumatic Retraction Unit for Oil Gun

High Energy Spark Igniter D-HG 1600

Pneumatic Retraction Unit for HESI

Design compactdesign,flamesensorandcontrolunitbuiltas one unit

Spectral ranges UV,VIS,IR

Operation intermittentoperation,permanentoperationand72-hour operation without continuous supervision

Outputs flamerelay,statusrelay,flameintensity0/4...20mA

Threshold 10-stage adjustable

Optical Flame Monitor

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OilGun

SprayCone

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D-LX100

smart solutions for combustion and environment

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