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Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
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• Waste heat boiler with 48 t/h (107klbs/h) steam capacity processingwaste heat from heat recovery cokeovens
• Finned tube design of EVAP and ECOlocated downstream SH
• Each boiler cleaned solely by2xEG10L SPG installed upstream SHand ECO (Shock Pulse Interval = 2h)
• Replaced 12 x steam soot blowers perboiler (type T20, D5E) - saved2.5 t/day of steam per boiler
• Trial run performed in 2016/2017 onboiler D3 – delivered SPGs for batteryA to C (in total 12 boilers) since then
• OEM waste heat boiler:Nooter/Eriksen (commissioned 1998)
• Operator: Cokenergy (SunCoke, USA)
EG10L Shock Pulse Generator (SPG) installed to LHS boiler wall
EG10L Shock Pulse Generator installed to rear boiler wall
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
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Dimensions ECO passWxLxH [mm]:2’300 x 2’000 x 4’000
Dimensions horizontal passWxLxH [mm]:2’300 x 7’000 x 3’700 (2’350 drum to drum)
EVAP 1Bareverticaltubes
SHBare horizontaltubes (stag-gered design)
EVAP 2+3Finned verticaltubes (finn pitch20-30mm)
ECO 1+2Finned horizontaltubes
Waste heatfrom heatrecovery cokeoven
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
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Soot blower boiler cleaning
SPG boiler cleaning
Boiler D3
Pres
sure
drop
was
tehe
atbo
iler[
inch
WC
] (ho
rizon
tals
ectio
n)
Soot blower boiler cleaning
SPG boiler cleaningBoiler D3
Stea
mou
tlett
empe
ratu
re[°
F] (n
orm
aliz
ed)
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
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Steam outlet temperature (normalized) =Mean steam outlet temperature x 1500
(inlet flue gas temperature S)
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
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12 x steam soot blowers(169 days of operation)
2 x Shock Pulse Generators(136 days of operation)
Boiler D3
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
6Boiler D3
12 x steam soot blowers(169 days of operation)
2 x Shock Pulse Generators(136 days of operation)
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
7Boiler D3
12 x steam soot blowers(169 days of operation)
2 x Shock Pulse Generators(136 days of operation)
Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA
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