FHC-IIIC 型低NOxバーナ 鉄鋼炉に要求されるあらゆる機能を満載。
Contents
1. The amount of NOx generated by the burner during operation varies with various factors such as type of burner fuel excess air ratio burner load combustion air temperature furnace temperature and amount of organic nitrogen contained in the fuel The amount of NOx generated by the FHC Hc low NOx burner can be predicted by the following equation In case of any disturbance due to air infiltration some corrections would be otherwise necessary NOx level in operation NOx level x K X K X KsX K X Ks Fuel NOx level Where K Fuel coefficient Kz Combustion air temperature coefficient temperature coefficient Ka Burner load coefficient Ks Furnace configuration coefficient In the event that burners are arranged at short intervals or the burner chamber is narrow Ks should be taken into consideration Please contact us for Ks EEXENOX B Basic NOx level Ka Xx 5 17U 7COGCFuel NOOI X2COGCBFGORSZATG 10MJ m normal AX3 RTE FN 225185 rS Fuel Natural gas 119618 83 Basic NOx ppm in 1196 O correction 1 COG with fuel N level standing at O x2 Mixture of COG and at Fr Mixed gas 10MJ m normal A 3 Sprayed with steam i oil Ato C 0 86 1 30 The figures in mean the values when sprayed with compressed air a ppm O 0 0 5 1 1 5 2 2 5 O Residual O2. Pa BE Ni 9 LET ILLI LT os ol LL E dL EL Ld Ld d Bo 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 6 Preheated air temperature C FAAEE Furnace temperature C pra Mgas Fuel NOx ppm O 119635 3 Fuel NOx ppm in 11 Oecorrection 30 1 7 normal 20 10 0 0 0 1 0 2 0 3 0 4 10 20 30 40 50 60 70 80 90 100 BR E EE Burner load 96 Fuel N ZiA g m normal f JV wt 011 Fuel N Gas in g m normal Oil in wt 96 oil FHC lIC sgxoxi 2 FHC llc LOW NOx BURNER FLAME DIMENSIONS OSA AE fe RECO REN KUZREUX ENOx N 27 ORARE CAE TIE AN ZR OD AZ d CET z NW T dL XF X Fe Fi ABER STRA The flame pattern of the burner varies with such factors as firing rate type of fuel and burner load The flame pattern of the FHC Ilic low NOx burner can be predicated by the following equation Flame dimensions in operation Basic flame dimensions X X F2 Fuel coefficient Burner load coefficient H WNNJEIR Basic pattern BRI KHZ MZ A TA CE We ases LPa eiu Henn oic P wo 10 os F
3. INZRJVE A2354U018 1 Handle rotor and pointer HB FEJ Y JVAZ VAY Model HB F oil sprayer Atomizing air steam En MD Tie B 27 ER Swirl vane H 4U XV7 Guide pipe 1 Rotary valve Sight hole FHC lIC s amp gxoxi 2 FHC llc LOW NOx BURNER 11 STANDARD SPECIFICATIONS 4kW 860kcal h 15 956 FRIES UR 291185 1 Maximum firing rate dependent upon combustion air temperature KW Burner model 150 H 700 10 1100 910 600 13 1460 1220 1 Em 800 FHC IIc 15 1830 1520 1310 1160 1060 1000 20 2280 1900 1630 1450 1320 1250 30 2920 2430 2090 1860 1690 1600 35 3650 3040 2610 2330 2120 2000 FHC IIc 40 4570 3800 3270 2910 2650 2510 50 5480 4560 3920 3490 3170 3010 FHC 1Ilc 65 7310 6080 5220 4650 4230 4010 80 9130 7600 6530 5810 5290 5010 1 1 amp 4 5 amp 7 2 94 Note 1 For the gas burner the standard fuel gas and center air supply pressure is 2 94kPa and the EPA 1I7f iiEd30CtikSCUXxd standard fuel gas and center air supply temperature is 30 C 2 IX FRHO 75b V t EE 7 2 For the oil burner the oil supply pressure and compressed air steam supply pressure should be 294kPac S FE Ze 7J 294kPa2 294kPa so that the model HB sprayer be used Refe
4. UNOxOMR RElo Cos Ta RU 727 3 11JVNOXx OO XE PNA CESNET 207 58122 UB BESR TER 3l 83S THIERS ACZ kK Z9 SR 581169 T 9 9 TES The low NOx burner employs two stage combustion system to reduce NOx In the primary combustion area most of fuel NOx generated is reduced to N2 The secondary air entrains the combustion products on its way to the secondary combustion area to dilute the concentration in the air This action suppresses a rapid combustion reaction over the entire burning zone so that the generation of thermal NOx can be reduced Section A 1 Primary combustion area Secondary combustion area Section Section VARIA SERT 2 KA Primary Secondary combustion area combustion area 1RR 2A BEU Primary Secondary combustion combustion zone zone to the minimal level Chugai Ko NOx NOx CHARACTERISTICS 11 73 ES 3 E TANO N 7 N 2 80 XX Z8 SLEE er RUE AR PADRE RUE FHC Ilic SHENOx Y 7 IR OD XAZJUBIERf RIK DASICD C CEEx BAZAS CO A EL2 45 Sa ECTS Ep ONOXI E 2 amp 2ENOX B x KixKaxKsxKa XKs Fuel NOx Ko ARARA Ke GAIUDREX 11 FFIR NEA VARENR
5. 280 27 FHC IIc 13 G 930kW 200A 25A 32A 40A 350 425 505 555 938 520 280 100 130 350 270 215 290 27 FHC IIc 15 G 1163KW 250A Rc94 25A 32A 50A 375 450 530 580 1018 540 310 110 140 380 290 225 300 32 20 0 1453kW 300A Rc9 4 32A 40A 50A 400 480 560 610 1068 560 340 110 150 440 340 243 310 32 FHC IIc 30 G 1860kW 300A Rci 32A 40A 65A 445 515 595 645 1132 585 350 130 160 450 350 261 340 38 FHC Iice 35 G 232601 350A Rci 40A 50A 80A 485 555 635 685 1182 605 370 140 180 520 400 285 360 38 FHC Iic 40 G 2907kW 400A Rcll4 40A 50A 80A 510 595 675 725 1263 635 400 150 190 570 440 307 380 46 50 0 3488kW 400A 50A 65A 100A 550 635 715 765 1313 670 410 155 200 590 460 330 400 46 65 0 4651KW 400A Rcil 50A 65A 100A 620 705 785 835 1375 725 410 160 240 610 480 369 430 48 80 0 5814KW 500A 1 2 65A 80A 100A 685 770 850 900 1550 850 460 160 270 710 580 407 470 48 3 Hg L4 m _ H4 where 1 y H0 7iA0 amp fr3 amp s MJ m normal Note 1 K value K value Scale of calorific value of fuel gas y9 2A0JLt8 8 kg m normal 0 Lower calorific value of ii gas MJ m3 3 zc DESEAN UH BIET 48 y9 Specific weight of fuel gas kg m normal 2 KAO O 2 If value is less than 20 9 because of the special property of fuel gas or if it 3 SOR BELLUA EE CEDE SBILZSccPeUE is difficult to mount the burner with the indi
6. 7 Konan Minato ku Tokyo 108 0075 Japan Tel 81 3 5783 3378 Fax 81 3 5783 3368 Nagoya Sales Office 1 21 19 Meieki Minami Nakamura ku Nagoya 450 0003 Japan Tel 81 52 561 3561 Fax 481 52 561 3566 Combustion Laboratory 1 000 6 Enmyo cho Kashiwara Osaka 582 0027 Japan Tel 81 72 977 8503 Fax 81 72 978 6981 UWROIOT SSUILZSESS14 descriptions and specifications are subject to change without notice 65UZX40cC Ze 130900 M Printed in Japan
7. CAugai Ko CB 132 02F RHENOXxJ C 7 LOW NOx BURNER IAR TU d 5 Ko o fils for any reheat furnace requirement 9 R FEATURES 1 JPA AOA 2 ERA vJVNOx335 amp 07 3 TJVNOx X 4 EE BEER D SD CS 2 1107 21020 FH AU VV2XZ KU qu AI qd ERUCRRIBD Ce x4 o LEW CHRONO ERAI 3 15 J 8 C38 cb H 77 2 Z22yh amp 7242 AE ES CUT OC 5BUCOJ ZE1 amp 5nti IE 2096 1009602 2 EAE SG BE 2356 C 1 05001 Z9 amp L EET o IU Vara eb o ER 10 1 LEO TA 10 WERE REI T EUM 1 amp NOx 4NUZ2J VZU h NT 8A 7 872v i EROR RODA SSGKUbIBADOTSs2 SERBUCU A02 c0 FHC amp M ENOx 3 7 arp Tk 2 Eg i Ek 91 00 389 XR 100007k EL Eo TEHI amp n 8MENOx 3 7 SX Sd F4 NS 2 D X3 FER CZ Cox Low NOx variable flame high turn down use of preheated air The low NOx burner offers various porperties to meet all the requirements of steel mill furnace application More than 10000 FHC burners have been employed in the modern reheating furnaces enjoying great popularity abroad as well as in Japan 1 Low NOx and low noise An ideal two stage combustion system reduces the generation of thermal NOx and fuel NOx to a very low level Its combustion noise level is lo
8. OS mone Tende required 1801 9746 Flame detector Behind pilot buner location M vL 1u N EC 0481 70 958258 UTOY iH BA Monitoring of pilot burner flame Monitoring of main burner flame after pilot burner is turned off 77 27 amp 45 A X 54U 7 4UUCKSEB X Ignition Automatic ignition by spark plug and manual ignition by torch burner 1 C UE8v 5 Pilot gas 2 OVV CH BIB 7 VD RANT 7 ORBE TARER Flame detecting method AIV T Spark plug Note 1 Pilot burner should be mounted above the horizontal axis Air 2 For further details of pilot burner refer to the instruction manual of the pilot burner Tp xt FHC lIC sgwxoxis 2 FHC llc LOW NOx BURNER PIPING DIAGRAM M Tl gt 5 zg s 4 En i EE 87 TT TERRAE JEn Temperature 72 87 lt 8 08 Air flow indicating Gas flow indicating indicating Gas burner Pressure indicating controller controller controller controller 67 E pee RM _ S ou LA 3 L Wr E USES Recuperator NE Thermocouple X ESI 6 o Flow A uc 4 control valve Si a gt ZIA _ 2 7187 each zone NTUZ4A each burner 2 Turbo blower Orifice Micromano EvA IT Do Center air t ND Ex
9. OuRDETBUGESD CEROCREJ4 YAT pDbpnugCUtd4 tr74 IZuicOXut UE 57 8 B 3 amp U 7 50 XEFRE7J mo E EBEN JZE Rte RAITRE EED fI RES 4 3 Without center air the flame tends PS to curl up COS US d 09539 GES RT RE 1 BF JZOR AN EEN X3 5 2 AIZ ARR ROS RIT 3 7L A 08 amp V EP B 10 1 NIAAA ET ba M uU NI Ln dus exE TED EESTI A L AU 5 nuBE ZzU Ed The center air effect ensures a correct direction of the flame and its stability so that a high turn down may be achieved As the gas burner load is decreased the flow rates of fuel gas and combustion air lower at the nozzle causing insufficient mixing and thus resulting in poor combustion To solve this problem the center air system has been developed This suppilies a very small amount of air at a constant pressure When a dual fuel oil gas burner is used and gas is burned the atomizing medium of the model HB sprayer as the substitute for center air is supplied at a constant pressure RE REDUCTION METHOD OF NOx LEVEL O Effects especially at low fire 1 Driving force of fuel gas is increased 2 Fuel gas and combustion air are well mixed 3 A turn down grater than 10 1 is achieved with curling up of the flame prevented FHC Ilic amp iEKNOx N 7 2 ERR E75 S EE FU C
10. V VY YJ aara yi AA AW anar A LT gt 4 A 0203 05071 2 3 BABERE Combustion air pressure kPa tLA4 rLTRBi V2 REZEN EE LEE BA Beg 7 S FHC Ic 3 DAREI F Valve for center air IKNOx V 7 088 amp 1E 3 Gas burner ZEMA CAM He REA 2 94kPa e Jt po E A50C Oil shutoff valve 2 m 1 Oc amp FHC Ilc 202 amp E ELET SERRER Et 1450kW 4 EINS Compressed air or steam shutoff valve burner Refer to the diagram for the selection of a suitable model Hand valve for controlling oil and compressed air or steam considering the combustion air pressure combustion air J4V5EUSEZREHSECRBZUARUZJIT 3 J temperature excess air ratio and firing rate Flexible tube for oil and compressed air or steam Example X 55 Combustion air pressure 2 94kPa Common to VfEyh 7 MPNI Combustion air temperature 450C Model FHC Ilc 20 gas burner Model MPN pilot burner Excess air ratio 1 1 will be selected and oil burner Firing rate 1450kW Chugai Ko RIIA MOUNTING DIMENSIONS OFHC IIc G2 7j AJ V 2 A A a UJ JIe 19 U90 ID 8 Lr Fuelgas C Q3ASC2JV 2 OHRBXfSbE Gas burner R Meng Burner model Firing rate FHC IIc 10 G 698kW 200A Rc 20A 25A 40A 335 410 470 510 918 500 280 100 120 340 260 208
11. X Long flame m KRIZ Flame lico t R Short flame NENNEN 0 7 E L Le EI 5 diameter m F2 aL LL IL LLL L LLL LLL INI n LL ELLLL KR Flame length m 0 10 20 30 40 50 60 70 80 90 100 SS Burner load 96 0 1000 2000 3000 4000 5000 6000 7000 BRE Firing rate kW A OumE4TCE RZ7777A0fW amp zUS FHC Tlc 15 G78 3 7 1160KW C ABEU EDE Temperature distribution and heat flux with varied flame patterns are shown below when firing FHC M c 15 G burner at 1160kW As 7 1005 Typical flame temperature distribution 25 7 7 00 Typical heat flux 1 1 E Tod feme RE HE S og do M s E 2 5 M LT 1 1 J R short lt i E E 28 oz LL IRE 75 Lengthwise distance m 4 5 1 2 3 IRAMA Lengthwise distance m JW Ov PILOT BURNER em CERA TOC SIBI E OYMA E MPN 2D MPN ID fec A d ERR X 271 9 0 BUM HN AA C Type of pilot burner CG Jud 13289 ERRE AIT DAIT WB Y 703 amp A T AR RRI JANVH TAIA x ups Fuel City gas natural gas propane or butane The furnace continuously operated at high temperatures R i 23kW l P Firing rate not need continuous firing of the pilot burner If the FHOA FAOBR 257780 urnace is frequently turned on and off or is operated at Mounting onto low temperatures continuous firing of the pilot burner is burner T
12. cated dimensions please contact us 3 The gas connection diamater is subject to change by the firing rate OG FHC II c O8277 4 JUJV 77 RAZIA FHC II O oil burner iiis s gt 5 ERRAR Atomizing air steam 211 I II burner Pipe conection Dimensions mm Bumer ima A c o E F T 6 8 1 9 T MT 8 10 698kW 200A Rc Rct 335 410 470 510 888 500 270 118 120 340 260 208 13 0 930kW 200A Rc Rct 350 425 505 555 908 520 270 118 130 350 270 215 15 0 1163kW 250A Rc Rct 375 450 530 580 948 540 290 118 140 380 290 225 FHC IEc 20 O 1453kW 300A Rc Rc 400 480 560 610 998 560 320 118 150 440 340 243 30 1860kW 300A Rc Rci 445 515 595 645 1023 585 320 118 160 450 350 261 FHC 0c 35 O 2326kW 350A Rc Rc94 485 959 635 685 1085 605 340 140 180 520 400 285 40 0 2907kW 400A Rct Rc34 510 595 675 725 1145 635 370 140 190 570 440 307 50 0 3488kW 400A 34 550 635 715 765 1180 670 370 140 200 590 460 330 65 0 4651kW 400A Rc Rc 4 620 705 785 835 1235 725 370 140 240 610 480 369 80 0 5814kW 500A Rc Rc9 4 685 7 10 850 900 1410 850 420 140 2 0 710 580 407 I7 Air t75 lI7035 JmR CENTER AIR EFFECT FHC lIC s amp gxoxix 2 FHC llc LOW NOx BURNER amp 45v Ims TUSCERI ZRS KURR ANDIRIR C
13. ock Pressure reducing valv 1 From each zone L Cil flow meter AE Thermocouple SER Closed during operation IZIN Expansion joint ETT Flow control each burner valve a4 ZRZIADZIASIBE SL ETRRIU Co va CI P CXV This catalog uses the SI units which can be calculated from the following formula GO 1kcal h 1 163X10 kW 1kW 860kcal h Q1mmH O 1kg m 9 81Pa 1kg cm 98 1kPa 1Pa 0 102mmH O 1kPa 102mmH O 1 95 T A CHO lt 20 ELBETE SAFETY PRECAUTIONS Read the instruction manual carefully before using the equipment Wu REGISTRATION r M A QMS EMS V JMAQA 070 JAB JMAQA E745 CM014 ISO 9001 14001 Certified HEF yZ TR EEA URL http www chugai co jp CHUGAI RO CO LTD JR s gp T592 8331 iA rmh KET J tfvATb E RN TEL 072 247 1440 i amp 38 072 247 1441 m x 7108 0075 8271 5275 886 TEL 03 5783 3378 i38 FAX 03 5783 3368 gte T450 0003 ER HRNIE SET A218195 CN ASREJV TEL 052 561 3561 16 FAX 052 561 3566 TT 582 0027 A INATIA h FH BST 100033856 TEL 072 977 8503 f 3 amp FAX 072 978 6981 A Hh Sakai Works 2 A4 Chikko Shinmachi Nishi ku Sakai 592 8331 Japan Tel 81 72 247 1440 Fax 81 72 247 1441 Tokyo Branch 2 5
14. on to side burning furnace MER L6 8 0D CERE U 3 Optimal flame pattern can be obtained irrespective of furnace width Fe7t 10fEXB 10 sizes as standards BREH Symbol Fuel Gas Oil EN NE WB JV B Dual fuel oil gas Note 1 Please let us know the kind and supply pressure of the fuel gas to be used when ordering the gas burners or the kind of the fuel oil when ordering the oil burners 2 Dual fuel oil gas burners are available by request The rotary valve is turned by operating the handle whereby the division of the primary air and secondary air flows is controlled The larger the primary air flow the shorter the flame and vice versa On the gas burner center air is supplied from the center of the gas nozzle OFHC Ilc G297j A V 27 FHC Ill c G gas burner BERT Combustion air lb FEUNRZZATINVZ Burner body Built in butterfly valve JRE Rear cover IS AX4M INARIVB A Burner tile INZEJV Handle rotor Handle and pointer qox Ry Center airl ZN 9 hh JVv N z7 Sight hole N Ji A QV Ii S JA S lee JAIRTZ amp s Gas nozle n ay uvg EX9 T7INW7 Sight hole Rotary valve pipe and center air pipe OFHC IIc OZ Z 4 Jp V 2 FHC Il c O oil burner ARRA Combustion air d ARSTIL SILT 13 946 Burner body Built in butterfly valve Rear cover Ad amp pe Iv JV Burner tile Handle
15. pansion joint RIFA 27241802 UNE WO To each zone To each burner Butterfly valve built in Te B d To the atmosphere Bi E H xj Micromano meter Y NEHC IIc G8 5 J L H Gas flow meter 77777 P gt lt gt lt FHC Ic G burner HORS d H erer gt Ded pcdcs 9 Micromano meter m To each zone ped ped To each burner Regulating cock L 10 20 T Purge piping m pex BIA To each zone T i E TRZSBDRT 07 4 Temperature FEZJHRZRREBDRT Oil flow indicating indicating 1 Pressure flow regulator controller controller Oil burner Be al L H JRHS lt p euin eg Air flow indicating conroller NES 7712 To each zone NOrifice A RJH7 Turbo blower Return piping E y kI Z4JV9 EAR Z service tank Y FHC IIc O23 3 7 H FHC IIc O burner WEET ZU Hegulating Micromano meter Oil strainer FIIR Oil heater To each burner 1 06 7IbfTa 7 il ZBC E _ i Oil pump Purge piping EH Flexible tube amp To each zone Ded lt Pressure EUER GER 00 07 X UTER NE NM RE Compressed air EIN OZ ZIA x SEE I7 steam To each zone Cad To each burner Regulating c
16. r to the model HB sprayer catalog for the Sere 1 ET SRI SU detail BEER RRIE7JI2 94kPaO 3s S UE IEEE 3 The firing rates listed above are values at the combustion air pressure of 2 94kPa If the combustion 7J52 94kPac 555615 amp air pressure is lower or higher than 2 94kPa correct the firing rate with the coefficient given below 4 KERIEN 4 The combustion air pressure indicates the burner differential pressure 5 CUZ Ade CEDZ SIUE eccheusd 5 The gas connection diamater is subject to change by the firing rate 1kPa 102mmH20 EZ 7 Combustion air pressure KPa 141 f amp 3X Coefficient 0 58 0 71 0 82 0 91 1 00 1 08 1 15 1 22 ERAT IER eS mn SELECTION OF MODELS Bumnsr model The accessories are unless otherwise HHHI MM AHH ruc me 80 specified HAE IE WA BEER EUNRZZT1NV2 UHAR 7 FHC Ilc 40 AZ ASt amp JN 7 Combustion air butterfly valve built in amp 4 A 35 LT Gas burner 4 1 30 Sight hole WA dE xUNRZZAT1V2 WI Combustion air butterfly valve built in 21 HBHUAZUVA Y Oil burner Model HB 1 each 94 hh Sight hole Tn SPECIAL ACCESSORIES C48 ES Order as required Combustion airtemperature bs Firing rate KW d j di gd Vai 7 VAM
17. w 2 Variable flame Even during operation the flame length can be freely adjusted by the flame pattern regulating valve to provide optimal temperature distribution in the furnace according to furnace geometry and operating conditions 3 Heat flux suited for homogeneous heating The flat curve in the heat flux characteristics allows a homogeneous heat distribution even if the flame pattern is changed 4 Low excess air combustion The low excess air ratio of 1 05 is attained in the firing range of 20 to 100 5 Wide turn down range The turn down ratio greater than 10 1 is attained for a wide variety of furnace application Chugai Ko H APPLICATIONS JL REP RULES T zh 7 Heheating furnaces for steel mills heat treating furnaces melting furnaces ladle preheating and drying equipment incinerators boilers petroleum heating furnaces etc TR DESIGNATION SURE Symbol Combustion air temperature 450CLELFR 450 or lower 457 700 X 1 ZA 6ONXSCGAAORZSCUUSHEJECOxB MRCI8U EXZz FIINDA HE VOD REB CERTE SUN X2 HZ VU SU N J CELL EUSRTEU Ux 79 CONSTRUCTION INVEIE RIEd 2 K 81 817 7 l zu 17x28 2 ANET 1090 87 0 14 CEKIT DEL ZERKA NET VAERET AO vPA hb5t pA IYPOisnE OHRIT 77 19 Example Installation to axial flow burning furnace 850319177201 Example Installati
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