background image

16

CHAPTER

5

Preparation for start up

5.4

Pressure switches setting

Air pressure switch

Adjust the air pressure switch after having performed all other burner adjustments with

the air pressure switch set to the start of the scale (Fig. 23).

With the burner operating at max. output, increase adjustment pressure by slowly turn-

ing the relative knob clockwise until the burner locks out. Then turn the knob anti-clock-

wise by about 20% of the set point and repeat burner starting to ensure it is correct.

If the burner locks out again, turn the knob anticlockvise a little bit more.

Attention:

 as a rule, the air pressure switch must limit the CO in the fumes to less than

1% (10,000 ppm). To check this, insert a combustion analyser into the chimney, slowly

close the fan suction inlet (for example with cardboard) and check that the burner locks

out, before the CO in the fumes exceeds 1%. 

Maximum gas pressure switch

Adjust the maximum gas pressure switch after having performed all other burner adjust-

ments with the maximum gas pressure switch set to the end of the scale (Fig. 24). 

With the burner operating at MAX output, reduce the adjustment pressure by slowly turn-

ing the adjustment knob anticlockwise until the burner locks out.

Then turn the knob clockwise by 2 mbar and repeat burner firing.

If the burner locks out again, turn the knob again clockwise by 1 mbar.

Minimum gas pressure switch

Adjust the minimum gas pressure switch after having performed all the other burner ad-

justments with the pressure switch set at the start of the scale (Fig. 25).

With the burner operating at MAX output, increase adjustment pressure by slowly turning

the relative knob clockwise until the burner locks out.

Then turn the knob anti-clockwise by 2 mbar and repeat burner starting to ensure it is

uniform.

If the burner locks out again, turn the knob anti-clockwise again by 1 mbar.

5.4

Final checks

Before leaving the plant:

-

ensure the adjustment and safety devices work correctly;

-

check all the mechanical blocking systems on the adjustment devices are tightly closed.

D2215

Fig. 23

D2213

Fig. 24

D2214

Fig. 25

Summary of Contents for DB 16 SM C01 TC A0 FS1 T250

Page 1: ...tenance instructions 20069579 2 12 2013 Bruciatore industriali di gas Industrial gas burner Funzionamento bistadio progressivo o modulante Progressive two stage or modulating operation CODICE CODE MOD...

Page 2: ......

Page 3: ...ltazione Destinatari Questo manuale stato realizzato per un utilizzo da parte di persona le che ha gi familiarit con tutti gli aspetti connessi a bruciatori ad olio e a gas Questi aspetti sono inerent...

Page 4: ...CAPITOLO 4 Alimentazione al bruciatore 10 Collegamento alimentazione gas al bruciatore 10 Schema generale di alimentazione gas esempio 11 Collegamenti elettrici 12 CAPITOLO 5 Preparazione all avviame...

Page 5: ...ronica Grandezza Serie N olio combustibile NS olio combustibile gas naturale NP olio combustibile GPL NA olio combustibile atom assistita L gasolio TL testa lunga Alimentazione aria NAP olio comb atom...

Page 6: ...as naturale G 20 PCI 10 kWh Nm3 Gas naturale G 25 PCI 8 6 kWh Nm3 Temperatura aria comburente Max 250 C Alimentazione elettrica 230 V 10 50 Hz Accensione Tipo elettrogas bruciatore pilota a gas natura...

Page 7: ...olatore portata gas 6 Flangia di attacco rampa gas 7 Fotocellula QRA 8 Rampa gas bruciatore pilota 9 Camma regolazione regolatore gas 10 Servomotore con camma regolazione aria 11 Regolazione testa di...

Page 8: ...TOLO 2 Descrizione del bruciatore 2 4 Dimensioni di ingombro Collegamento canale aria D3893 Fig 4 Fig 5 D7797 DIMENSIONI FLANGE Alimentazione gas Fissaggio alla caldaia Fig 6 DN 100 1 8 0 18 20069961...

Page 9: ...140 160 180 200 220 250 0 0 920 0 988 1 055 1 122 1 190 1 257 1 325 1 392 1 459 1 527 1 594 1 662 1 763 100 0 932 1 000 1 069 1 137 1 205 1 273 1 342 1 410 1 478 1 547 1 615 1 683 1 786 500 0 976 1 0...

Page 10: ...potenza massima svilup pata dal bruciatore data dalle curve di Fig 8 Rappresenta la perdita di carico della testa di combustione Gas naturale G 20 P C I 10 kWh Nm3 Le curve sono state ricavate nelle...

Page 11: ...aldaia dotata di frontone non raffreddato In ogni caso la parete in refrattario non deve estendersi oltre la fine della testa di combustione del bruciatore 3 2 Punti di sollevamento Per movimentare il...

Page 12: ...legare la flangia gas alla rampa utilizzare gli appositi adattatori previsti come accessori Collegamento del bruciatore pilota Il bruciatore dotato di una rampa gas dedicata che si trova fissata later...

Page 13: ...ntilatore VP Elettrovalvole pilota VPS Controllo di tenuta elettrovalvole gas VR Elettrovalvola di regolazione gas VS Elettrovalvola di sicurezza gas Legenda BP Bruciatore pilota C Giunto antivibrante...

Page 14: ...3 1 4 1 5 0 0 6 6 1 1 1 6 6 1 1 1 0 7 Legenda PA Pressostato aria PGM Pressostato gas di massima SM Servomotore TA Trasformatore di accensione UV Fotocellula VP1 Elettrovalvola pilota VP2 Elettrovalvo...

Page 15: ...ase alla po tenza massima che il bruciatore dovr erogare 5 2 Pilota di accensione Per un corretto funzionamento regolare la pressione del gas misurata sulla presa posta sulla valvola tra 30 50 mbar Po...

Page 16: ...le Camma pos 4 limita la massima apertura del servomotore per bruciatori misti in funzionamento a gas Camma pos 5 limita la portata minima Viene tarata in fabbrica a circa 20 per bruciatori misti in f...

Page 17: ...te aperta 90 oppure agire sul profilo della camma gas mediante le viti 2 Fig 22 e o sulla valvola di regolazione della rampa gas Regolazione aria max Variare il profilo finale della camma aria agendo...

Page 18: ...ttuato tutte le al tre regolazioni del bruciatore con il pressostato gas di massima regolato a fine scala Fig 24 Con il bruciatore funzionante alla potenza MAX diminuire la pressione di regolazione gi...

Page 19: ...misura usare un microamperometro da 100 A c c collegato in serie alla cellula secondo lo schema con un condensa tore da 100 F 1V c c in parallelo allo strumento 6 3 Verifiche periodiche Si consiglian...

Page 20: ...tempo di sicurezza il brucia tore va in blocco senza appari zione fiamma L elettrovalvola VR fa passare poco gas Aumentarlo L elettrovalvola VR o VS non si apre Sostituirebobinaopannelloraddrizzatore...

Page 21: ...e for future consultation Who should receive it This handbook has been prepared for people who already have a working knowledge of all aspects involving oil and gas burners These aspects refer to inst...

Page 22: ...he boiler 9 Lifting points 9 CHAPTER 4 Fuel supply 10 Gas supply connections to the burner 10 General gas supply layout example 11 Wiring diagrams 12 CHAPTER 5 Preparation for start up 13 Combustion h...

Page 23: ...t E electronic cam Size Series N fuel oil NS fuel oil natural gas NP fuel oil LPG NA fuel oil assisted atomisation L light oil TL long head Combustive air NAP fuel oil assisted atomisation LPG M progr...

Page 24: ...Net calorific value 10 kWh Nm3 Natural gas G 25 Net calorific value 8 6 kWh Nm3 Combustive air temperature Max 250 C Electrical supply 230 V 10 50 Hz Ignition Electrogas type pilot burner with natura...

Page 25: ...ch 5 Gas delivery regulator 6 Gas train attachment flange 7 Photocell QRA 8 Pilot burner gas train 9 Gas adjuster adjustment cam 10 Servomotor with air adjustment cam 11 Adjusting the combustion head...

Page 26: ...6 CHAPTER 2 Burner description 2 4 Overall dimensions Air duct connection Fig 4 Fig 5 D7797 FLANGE DIMENSIONS Gas supply Fixing to the boiler Fig 6 DN 100 1 8 0 18 20069961 Fig 3 D3893...

Page 27: ...0 920 0 988 1 055 1 122 1 190 1 257 1 325 1 392 1 459 1 527 1 594 1 662 1 763 100 0 932 1 000 1 069 1 137 1 205 1 273 1 342 1 410 1 478 1 547 1 615 1 683 1 786 500 0 976 1 047 1 119 1 190 1 262 1 333...

Page 28: ...the maximum output developed by the burner is given by the curves in Fig 8 It represents the pressure drop in the combustion head Natural gas G 20 Net calorific value 10 kWh Nm3 The curves were taken...

Page 29: ...ix the burner to a boiler without a cooled frontal In any case the fettled wall should not extend beyond the end of the burner combustion head 3 2 Lifting points To move the burner the attachment poin...

Page 30: ...n Paragraph 2 4 Use the relative adapters to connect the gas flange to the train supplied as accessories Pilot burner connection The burner has a special gas train that is fixed to the side of the air...

Page 31: ...nt VE Fan VP Pilot solenoid valves VPS Leak detection control device VR Gas pressure regulator solenoid valve VS Gas safety solenoid valve Key BP Pilot burner C Anti vibration joint GF Gas filter HPG...

Page 32: ...mum gas pressure switch SM Servomotor TA Ignition transformer UV Photocell VP1 Pilot solenoid valve VP2 Pilot solenoid valve XTB Burner earth XT1 Burner terminal strip XS1 Servomotor plug XP1 Servomot...

Page 33: ...n the basis of the maximum output required from the burner 5 2 Ignition pilot For correct working set the gas pressure measured on the valve test point at 30 50 mbar The distance of the electrode from...

Page 34: ...fuel Cam pos 4 limits maximum opening of the servomotor for mixed burners working with gas Cam pos 5 limits minimum delivery It is set in the factory at approx 20 for mixed burners working with gas Ca...

Page 35: ...ws 2 Fig 22 on the gas cam profile and or the gas train adjustment valve Max air adjustment Vary the final profile of the air cam by turning the screws 2 Fig 22 Do not turn just one screw but turn tho...

Page 36: ...after having performed all other burner adjust ments with the maximum gas pressure switch set to the end of the scale Fig 24 With the burner operating at MAX output reduce the adjustment pressure by...

Page 37: ...microammeter of 100 A c c connected in series to the photocell as in the scheme with a capacitor of 100 F 1V c c at the same level of the instrument 6 3 Periodic checks We recommend carrying out the f...

Page 38: ...nd the flame does not appear The solenoid VR allows little gas through Increase Solenoid valves VR or VS fail to open Renew the coil or rectifier panel Gas pressure too low Increase on the regulator P...

Page 39: ...1...

Page 40: ...2 CHAPTER1 3 3 3 CHAPTER 2 4 4 4 5 6 7 8 CHAPTER 3 9 9 9 CHAPTER 4 10 10 11 12 CHAPTER 5 13 13 13 14 14 15 16 16 CHAPTER 6 17 17 17 17 18...

Page 41: ...3 1 1 1 1 2 DB 16 S TC A 0 A 0 A 90 TC S P LPG E N NS NP LPG NA L TL NAP LPG M LS LP LPG NAS TXL A 180 A 270 16 20 M DB 16 SM C01 TC A0 20068071...

Page 42: ...4 2 2 1 2 2 DB 16 kW 3000 10000 16000 G 20 10 kWh Nm3 G 25 8 6 kWh Nm3 250 C 230 V 10 50 Hz LPG 24 1 FS1 DB16 14800 Ai r t em per at ur e kW 16000 50 C 0 150 C 250 C 12000 2500 8000 G AS 1 D11749...

Page 43: ...5 2 2 3 20069960 1 2 3 4 5 6 7 QRA 8 9 10 11 12 13 14 15 16 17 2...

Page 44: ...6 2 2 4 4 5 D7797 6 DN 100 1 8 0 18 20069961 3 D3893...

Page 45: ...646 1 722 1 798 1 874 1 988 1250 1 069 1 147 1 226 1 304 1 382 1 460 1 539 1 617 1 695 1 774 1 852 1 930 2 048 1500 1 102 1 182 1 263 1 344 1 425 1 505 1 586 1 667 1 747 1 828 1 909 1 990 2 111 1750 1...

Page 46: ...40 260 280 G 20 DB20 G 25 DB20 G 31 DB16 G 31 DB20 0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 26 24 22 20 18 16 14 12 10 8 6 4 2 0 m bar KW G 25 DB16 G 20 DB16 G 20 DB20 G 25 DB20...

Page 47: ...9 3 3 1 3 2 10 20069962 11 20069963...

Page 48: ...10 4 4 1 6 2 2 4 50 500 mbar 13...

Page 49: ...11 4 4 2 14 D3897 PGm RG SRV VE VP VPS VR VS BP C GF HPG LPG MM PA PCV PGM 0 5 4 bar max 500 mbar...

Page 50: ...12 4 4 3 PA PGM SM TA UV VP1 VP2 XTB XT1 XS1 XP1 15 0 0 1 0 0 0 0 0 0 2 0 0 0 3 1 4 1 5 0 0 6 6 1 1 1 6 6 1 1 1 0 7...

Page 51: ...13 5 5 1 5 2 30 50 mbar 2 3 mm kW 1 10000 2 11200 3 12400 4 13600 5 14800 6 16000 16 D8293 D3899 17...

Page 52: ...14 5 5 3 1 4 2 3 5 6 7 1 2 0 3 20 4 5 20 130 1 4 5 4 19 20 21 18 D1500 D2213 D2215 19 20 21 D2214...

Page 53: ...15 5 5 5 22 MAN 3 1 130 90 2 22 2 22 20 2 2 3 2 4 1 22 1 2 3 4 D1499...

Page 54: ...16 5 5 4 23 20 CO 1 10 000 ppm CO 1 24 2 mbar 1 mbar 25 2 mbar 1 mbar 5 4 D2215 23 D2213 24 D2214 25...

Page 55: ...17 6 1 1 8 1 2 3 4 5 6 2 UV 70 A 187 V 100 A c c 100 F 1V c c 6 3 1 2 3 4 5 1 2 3 4 5 6 D2142 26 Rp 1 4 P 50 mbar 27 D2143 D1143 28 6...

Page 56: ...18 6 6 4 1 2 3 VR VR VS VR...

Page 57: ......

Page 58: ......

Page 59: ......

Page 60: ...RIELLO S p A I 37045 Legnago VR Tel 39 0442 630111 http www riello it http www rielloburners com Con riserva di modifiche Subject to modifications...

Reviews: