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DFL

LOW NOx BURNER

LOW NOx BURNER FEATURES
■ Low NOx emission (60ppm, combustion air temp @ ambient)
■ No moving parts for reliable service.
■ Low draft loss enabling low power loss of F/D fan
■ Able to run with low excess air (O₂2%)
■ BP-108 code applied
■ Suitable for vertical, horizontal or angles application
■ Burner design developed using the test facilities
■ Many reference lists for industrial & power boilers and hot oil heater
LOW NOx BURNER STRUCTURE

LOW NOx BURNER FLAME

SPECIFICATION
 DESCRIPTION 단위 5T/H 8T/H 10T/H 15T/H 20T/H 25T/H 30T/H 35T/H 40T/H 50T/H
 BURNER MODEL   DFL
352
DFL
400
DFL
435
DFL
480
DFL
535
DFL
600
DFL
650
DFL
705
DFL
755
DFL
870
 BURNER TYPE   OIL only : STEAM(AIR) JET TYPE, LOW NOx
GAS only : GAS MANIFOLD & MULTI SPUDS or CENTER GUN, LOW NOx
GAS/OIL dual : STEAM(AIR)JET & MULTI SPUDS, LOW NOx
 Kind of Fuel   B-C OIL, DIESEL OIL, LNG, LPG, OR H2 GAS
 BURNER
 CAPACITY
 OIL MCR Kg/HR 375 600 750 1125 1500 1875 2250 2625 3000 3750
 GAS MCR Nm3/HR 385 615 770 1125 1540 1925 2350 2688 3080 3850
 OIL PRESS. AT
 BURNER INLET
Kg/cm2 MAX. 10-12
 GAS PRESS. AT
 BURNER INLET(MCR)
Kg/cm2 MIN. 0.2 (GAS TRAIN INLET : 0.4~0.9k)
 ATOM. STEAM PRESS Kg/cm2 5.5 or 8.3 (CONSTANT PRESS. TYPE)
 ATOM. STEAM
 CONSUMPTION
Kg/HR 4-6% / FUEL OIL
 FUEL OIL TEMP. AT
 BURNER INLET
  130 oC / 15cst (B-C OIL FIRING)
 BURNER DRAFTLOSS
 AT MCR
mmAq 100 105 130 145 160 160 170 180 190 200
 EXCESS AIR RATIO
 AT MCR
% 10
 TURN DOWN RATIO 5:1
 FLAME SIZE  LENGTH mm 2800 3250 3450 4018 4410 4704 5096 5341 6000 6400
 DIA mm 1190 1360 1440 1700 1850 1950 2150 2250 2480 2600
* Emission guarantee (O2 4% base)
 - LNG firing : NOx 60 ppm, CO 50 ppm 
 - B-C oil firing : NOx 180 ppm, DUST 80 mg/Sm3
 - Emission guarantee depends on the boiler conditions and fuel analyses
* Burner model can be changed according to the combustion air temperature
BURNER DESIGN

For many years Hamworthy have been in the forefront of burner design and recognised as a burner supplier of equipment capable of high combustion efficiency. Burners in operation have met stringent limits on particulate emissions, coupled with low excess air operation for maximum efficiency and acid corrosion control. As its Pool works it has large combustion test facilities, enabling development programmes and trials to be effected with full scale burners. The test rigs are also available for customer demonstration. Fully instrumented for the measurement of NOx, oxygen, particulates and carbon monoxide, it provides one of the most comprehensive research and development installation throughout the Combustion Industry. More recent demands to reduce the level of nitrogen oxides being emitted, without increasing particulates emissions or compromising efficiency, have not gone unheeded. These have enabled Hamworthy to meet levels demanded not only by the U.K. 'Environmental Protection Act', but also more demanding and tougher standards set it other European countries and North America.
 
 


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