B3501喷嘴混合型烧嘴.pdf

CAUTION:Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall,make system adjustments and per-form any required service.BULLETIN3501&3506FEATURESAPPLICATIONSNOTICE:Pyronics practices a policyof continuous improvement in the de-sign of its products.It reserves theright to change the specifcations atany time without prior notice.BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELMODEL:3501-Single TunnelRevision:0Forging FurnacesAir HeatersAnnealing FurnacesFume DestructorsMelting FurnacesOvensDryersMalleabilizing FurnacesIncineratorsCrematoriumsLadle HeatingCuring OvensBurn Out FurnacesSteam Generators17700 MILES AVE.CLEVELAND,OHIO PHONE:[phone]FAX:[phone]-Multiple TunnelHigh heat inputs-intense combustionExcellent flame stabilityWide turndown range-greater than 10:1 on singletunnel burners,higher turndown with multipletunnelsFlanged construction-elimates pipe unionsHigh flame velocities for better furnace circulationShort flame lengths-less than 1 ft.per millionBTU/hr when firing into an air streamDesigned for pressurized firingPrecision pilot and flame detection mountingsUnique stepped tunnel designWill burn at high fire with cold block-no warm uprequiredLower air pressures requiredNo flashbacksRefractory burner blocks for operation up to 3300FRugged heavy duty construction8001 NMDESCRIPTIONCAPACITY TABLEBULLETIN 3501&3506PAGE NO.2Nozzle Mix Burners are short flame high capacity units designed for extremely wide turndown ranges.Gas and air are mixed onlyat the point of discharge,flashback is prevented.Exclusive stepped tunnel design creates very high turbulence and internal recirculation in the flame.The combustion tunnelshape produces pressures in the flame that are lower than the furnace pressure aiding flame retention.Ignition of main flame is smooth and stable in all sizes.Hot refractory surfaces on the blocks are not required for ignition.Allsizes may be lighted and raised immediately to high fire with excellent flame stablility.Each burner is equipped with an integral mounting flange for pressurized firing up to 10 psig furnace pressure(consult factory).NM burners develop capacity ratings at low pressure drops.Economical low pressure air blowers are adequate.Flanged connections are standard.Pipe unions are normally not required.Flame lengths are very short(see capactiy table).Large combustion chambers are not required.When operating in air heatersflame shield block extensions are used to prevent flame quenching.Multiple tunnel units produce higher capacities with short flame lengths by spreading the flame over a large area.Cross ignitionports between tunnels are provided to stabilize the flames at normal firing rates and fuel-air ratios.Individual pilots arerecommended for each tunnel with main flame supervision.Each NM burner can be ordered with a micrometer type gas flow adjuster.Pressure referenced control systems are used tocontrol heat inputs.1/2 oz.1 oz.2 oz.3 oz.4 oz.5 oz.6 oz.8 oz.10 oz.101NM3/43/8355070871001121221401586201NM1-1/43/4711001411732002242452833168301NM1-1/211051502102603003363684204758601NM21-1/4210300420520600670735840950101001NM31-1/435050070087010001120122014001580121501NM31-1/25707501000130015001700185021002400242501NM42-1/288012501770216025002800306035403950304001NM6314002000280034604000448049005600632046001NM8321003000420052006000670073508400950068001NM832825400056506930800089509800-82002NM42 1-1/470010001400173020002240245028003160124004NM64 1-1/4140020002800346040004480490056006320126006NM86 1-1/42100300042005200600067007350840095001210004NM104 2-1/2350050007000870010000112001220014000158003012002NM102 3425060008500104001200013400147001700019000616002NM102 3565080001130013850160001790019600-818003NM123 36350900012700156001800020100220002540028500624003NM123 38500120001700020800240002680029400-832004NM144 311300160002260027700320003580039200-848006NM206 317000240003400041600480005370058800-8Flame LengthModel No.Air Pipe SizeGas Pipe SizeMaximum Capacity in 1000s BTU/hr At Various Air&Gas Pressures(at burner)BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELCAUTION:Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall,make system adjustments and per-form any required service.SINGLE TUNNELNOTICEPyronics practices a policyof continuous improvement in the de-sign of its products.It reserves theright to change the specifcations atany time without prior notice.BULLETIN 3501&3506PAGE NO.317700 MILES AVE.CLEVELAND,OHIO PHONE:[phone]FAX:(216)663-BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELOPERATIONNormal piping for a single tunnel burner system is shown in Fig.1.This system will operate in combustion chambers withnegative,neutral,or positive pressures up to 2”W.C.Modulation of the main air valve changes the inlet air pressure to the air orifice in the mixer and the air flow.The airimpulse pressure to the top of the Pressure Balanced Regulator will modulate gas outlet pressure equal to the airpressure.The flows of gas and air are metered by the pressure drops across the air and gas orifice.MULTIPLE TUNNELBURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBACK PRESSURE FIRINGBULLETIN 3501&3506PAGE NO.4With equal pressure drops across both orifices,the gas and air flows will maintain the same proportional relationship.Theadjustable gas orifice is set at high fire for proper flame and locked.Once set,the fuel to air ratio will remain constant at allfiring rates.Inlet gas pressures to the Pressure Balanced Regulator must be higher than the blower maximum air pressure for properoperation.When inlet gas pressure is less than blower air pressure a bleed type loader(5108#2TDL Loader)must be used.Gas outletpressure will then be always proportional to the air pressure,and fuel to air ratios will be constant.Flanged Orifice Plate meters are recommended at convenient points in the air and gas supply lines to the burners to measureflows.See pressure drop vs.flow calibration curves on Bulletin 5720.One Pressure Balanced Regulator may supply any number of burners provided they are on the same control zone.Heat input is controlled by the main air valve.Automatic modulation of input is easily obtained by using electric or pneumaticmotors.See Bulletin 1301,1302.Multiple tunnel Nozzle Mix Burners operate the same as single tunnel units(see Fig.2).Gas cocks are installed in supply linesto each mixer.On initial start-up each tunnel is adjusted for proper fire individually.In operation all may be operated to fire as a single unitor tunnels may be phased off for wider turndown ratios.Positive pressure combustion chamber firing with nozzle mixing burner systems(see Fig.3)use a similar control system.Pressures must be increased to hold initial pressure drops on air and gas supplies at desired levels.Inlet gas pressures mustbe 1 psig to 10 psig higher than air pressure.Inlet air pressure must be above the furnace pressure.The air pressures shownin the capacity table on page 2 are the pressure drops required across the burners.The Differential Regulator spring is normally set for 8 oz.outlet pressure without top loading.The added air impulse pressurecauses the Differential Regulator to deliver gas outlet pressures always 1/2 psig above firing air pressure.The PressureBalanced Regulator has a constant pressure drop permitting higher pressure operation.CAUTION:Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall,make system adjustments and per-form any required service.BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.5BACK PRESSURE FIRING WITH AIR REGULATIONAir contol valves should be arranged to prevent maximum air pressure drop across burners from exceeding 12 osi.Ignition of pilots and main burners under furnace pressures up to 10 psig is smooth and stable.Pilots should have aDifferential and Pressure Balanced Regulator in the gas supply line similar to the main combustion system.With varying furnace pressure conditions an air control regulator is set for desired high fire air pressure drop across theburner(see Fig.4).The furnace pressure impulse loading to the air regulator will provide a constant air pressure drop accross the system.Closing the air control valve modulates the burner input.Inlet air and gas pressures to the system must be 1 psig to 10 psighigher than the maximum furnace pressures.Operation of the system with pressure impulsed Pressure Balanced Regulators is the same as with the standard system inFig.1 except for the increased furnace pressures.ORDERING INFORMATIONSelect the number and sizes of Nozzle Mix Burners based on total heat input and heat patterns required.Specify quantity and model numbers of burners.Add a subscript to number to indicate type of burner block holder and refractory required.With Std.Refractory less Jacket 3000F.With Hi-Temp.Refractory Less Jacket 3300F.With Alloy Jacket&Std.Refractory 3000F.With Alloy Jacket&Hi-Temp.Refractory 3300F.With Short Alloy Jacket&Std.Refractory 3000F.With Short Alloy Jacket&Hi-Temp.Refractory 3300F.-1-2-C-D-E-F17700 MILES AVE.CLEVELAND,OHIO PHONE:[phone]FAX:(216)663-NOTICE:Pyronics practices a policyof continuous improvement in the de-sign of its products.It reserves theright to change the specifcations atany time without prior notice.17700 MILES AVE.CLEVELAND,OHIO Cont on Pg.6BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.6Specify pilots or direct spark elect.(DSE)PILOTSDIRECT SPARK ELECT.#41PBST for 101NM,201NMDSE-10 for 101NM&201NM#62 or 64PBST for 301NM,601NM,1001NM,and 1501NM.DSE-1 for 301NM through 2501NM#84 or 86PBST for all others.DSE-11 for 4001NM through 8001NMSpecify accessory equipment such as blowers,gas and air regulators,manual reset safety shut off valves,orifice flowmeters,gas cocks,air valves,controllers,etc.101 NM-GA-R101 NM-GA-S201 NM-S4.5.CAUTION:Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall,make system adjustments and per-form any required service.17700 MILES AVE.CLEVELAND,OHIO PHONE:[phone]FAX:(216)663-NOTICE:Pyronics practices a policyof continuous improvement in the de-sign of its products.It reserves theright to change the specifcations atany time without prior notice.BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.7Model No.A Air InletB Gas InletCD301NM-F-R 301NM-F-S1-1/212-3/44-1/4301NM-GA-R 301NM-GA-S1-1/213-3/44-1/4601NM-F-R 601NM-F-S21-1/43-1/44-1/2601NM-GA-R 601NM-GA-S21-1/44-1/44-1/2BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.8Model No.A Air InletB Gas InletCDEF1001NM-F-R 1001NM-F-S31-1/43-3/44-3/44-5/89-1/41001NM-GA-R 1001NM-GA-S31-1/44-7/84-3/44-5/89-1/41501NM-F-R 1501NM-F-S323-3/455-1/210-1/81501NM-GA-R 1501NM-GA-S31-1/25-1/455-1/210-1/8CAUTION:Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall,make system adjustments and per-form any required service.17700 MILES AVE.CLEVELAND,OHIO PHONE:[phone]FAX:(216)663-NOTICE:Pyronics practices a policyof continuous improvement in the de-sign of its products.It reserves theright to change the specifcations atany time without prior notice.BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.92501 NM4001 NMBURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.106001 NM&8001 NM2002 NM12002 NM&16002 NMCAUTION:Operation of combustion equip-ment can be hazardous resulting in bodilyinjury or equipment damage.Each burnershould be supervised by a combustion safe-guard and only qualified personnel shouldinstall,make system adjustments and per-form any required service.17700 MILES AVE.CLEVELAND,OHIO PHONE:[phone]FAX:(216)663-NOTICE:Pyronics practices a policyof continuous improvement in the de-sign of its products.It reserves theright to change the specifcations atany time without prior notice.BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.1118003 NM&24003 NM4004 NM10004 NMLbs.Kgs.Lbs.Kgs.101NM13.56.14146.36201NM-219.55301NM45.020.455022.73601NM45.032.2710022.731001NM71.031.829545.451501NM70.071.829543.182501NM158.071.82-4001NM260.0118.18-6001NM330.0150.00-8001NM330.0150.00-2002NM-14867.274004NM300.0136.36-6006NM520.0236.36-10004NM885.0402.27-12002NM1860.0845.45-16002NM1860.0845.45-18003NM1960.0890.91-24003NM1990.0904.55-32004NM2290.01040.91-48006NM2290.01327.27-RoundSquareModel No.Shipping weights are approximate,and will vary 5%due toblock styles.BURNERS NOZZLE MIXSINGLE TUNNELMULTIPLE TUNNELBULLETIN 3501&3506PAGE NO.12WEIGHTS32004 NM6006 NM48006 NM