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Technical Documents of Contract No.CRC2012B1/C155DG4
List of Main Technical Datum of CFB Boiler and Matching
Equipment
No. Name Specification Qty.
1
Body of
the Boiler
Model SHXF15-2.5-AI 1set
Construction of the Body All Membrance
Wall Steel Construction
Measurement of the Body (LxWxH) 9000x6000x17000mm
Rated Evaporation 15 t/h
Rated Steam Pressure 2.5 MPa
Rated Steam temperature 225
Water Flow temperature 104
Primary Air Temperature 80
Secondary Air Temperature 20
Water Volume of Boiler Body 14.5M3
Heated
Surface
Area
Radiation 124M2
Convection 100M2
Economizer 334M2
Air pre-heater 280M2
Fluidized Bed Area 2.29M2
Coal Consumption(Standard coal) 1702Kg/h
Design heat efficiency 89.4%
Exhaust Smoke Temperature 150
Combustion Method Circulation Fluidized Combustion
Required Fuel+ Soft coal + Straw
Calorific Value: Qnet,v,ar = 5500cal/Kg
Size of Fuel:013mm(02mm 20%)
Anti-Seismic intensity
VII ( accord with Chinese Standard)
2 1st Blowing Fan
Model 9-26 7.1D 1pc. Wind volume 14643 M3/h
Air Pressure 12078 Pa
Motor Power 90 Kw
Rotate Speed 2900 r/min.
3 2nd Blowing Fan
Model 9-19 9D 1pc.
Wind volume 9233 M3/h
Air Pressure 4297 Pa
Motor Power 22 Kw
Rotate Speed 1450 r/min. Model Y6-41 NO11.2D 1pc.
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4 Induced Blowing Fan
Wind volume 43405 M3/h
Air Pressure 5611 Pa
Motor Power 132 Kw
Rotate Speed 1450 r/min.
5 Feed Water Pump
Model DG20-50*7 2pcs.
Flow rate Q=15-30M3 /h Pump Lift H=350 m
Motor Power 55 Kw
Rotate Speed 2900 r/min.
6 Economizer Steel Tube & Fin Slice type 1set
Length 2500 mm
7 Electric Cabinet Model LXK-15(Routing Control) 1set
8 Coal Feeder Model LS-200Spiral Type 1pc.
Motor Power 4 Kw
Rotate Speed 125-1250 r/min.9 Valve & Instrument
F15 matching, executing according to the random chart
1set
10 Deaerator
Nominal Output 15 t/h 1pc.
Working Pressure 0.02 Mpa
Operating
Temperature
104
Inflow Water Pressure 0.2 MPa
Inflow Water
Temperature
30
11 Pump for Deaerator
Model IS65-40-200 2pcs.
Flow Rate 25 M3/h
Pump Lift 50 m
Motor Power 7.5 Kw
Rotate Speed 2900 r/min.
12
Control System of Deaerator
Matching Deaerator 1pc.
13 Sampler Diameter 273mm 2pcs.
Working Pressure 2.5 MPa
Operating
Temperature
225
14
Continuous Blowdown
Expander
Model LP-1.5 1pc.
Diameter 800 mm
Working Pressure 0.7 Mpa
Operating
Temperature
170
Volume 1.5 M3
15
Model DP-3 1pc.
Diameter 1200mm Working Pressure 0.15 Mpa
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Regular Blowdown Expander Operating
Temperature
170
Volume 3M3
16 Sub-Cylinder
Diameter DN500 1pc.
Construction One intake valve and
four exhaust valve Working Pressure 2.5 MPa
Operating
Temperature
225
17 Bag Filter
Model PPC96-7 1set
Discharged Smoke Temperature
170
Discharged Smoke Density
60 g/NM3
Collection Efficiency 99.7%18 Thionizer Smoke Volume 40000 M3/h 1set
19
Fireproofing Material
According to the design, the area of fluidized bed, cyclone
separator, return-feeder will be poured by Corundum fireproof
material
202ton
20
Soot Blowing System15t/h: 6, Matching to 15t/h CFB
boilers: Evaporation tube bundle, Economizer, totally 6 points,
Sound waves.
1pc.
Detailed Description of the Boiler and matching Equipment1DHX15-2.5 CFB Boiler Model DHX15-2.51.1 Main Performance parameter of the Boiler
Name Specification Model SHXF15-2.5-AI
Construction of the Body All Membrance
Wall Steel Construction
Measurement of the Body (LxWxH) 9000x6000x17000mm
Rated Evaporation 15 t/h
Rated Steam Pressure 2.5 MPa
Rated Steam temperature 225
Water Flow temperature 104
Primary Air Temperature 80 Secondary Air Temperature 20
Water Volume of Boiler Body 14.5M3
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Heated
Surface
Area
Radiation 124M2
Convection 100M2
Economizer 334M2
Air pre-heater 280M2
Fluidized Bed Area 2.29M2
Coal Consumption(Standard coal) 1702Kg/h Design heat efficiency 89.4%
Exhaust Smoke Temperature 150
Combustion Method Circulation Fluidized Combustion
Required Fuel+ Soft coal + Straw
Calorific Value: Qnet,v,ar = 5500cal/Kg
Size of Fuel:013mm(02mm 20%)
Anti-Seismic intensity
VII ( accord with Chinese Standard)
1.2 Detailed Description for the construction of Boiler ( omitted)1.3 Material & Standard of the main part of the Boiler
No. Name Specification
Chinese Standard CodeMaterial
U.S.A Standard CodeMaterial
1 Drum 1400*22 GB713Q245R ASTMA516Gr55 OK
2
Membrance water cooled wall
51*5
GB308720
DEBE SER TUBOS DE
CALDERA ITEM 2-8-10
ESTE ULTIMPO NO
MANDATORIO PERO
RECOMENDABLE
ASTM1020
ESTE ES ACERO
ESTRUCTURAL SOLO
APLICACIN
ESTRUCTURAL
3
Water cooled collecting box
219*10
273*12
4 Downtake 108*4
5 Steam Pipe 89*4
6
Control of Evaporator
42*3.5
7
Collecting box of Evaporator
325*12
8
Fin type Economizer
32*3.5
9
Collecting box of Economizer
159*8
10 Air pre-heater 50*1.5
GBQ235-A ASTMA570GrA
11
Steel structural shape and plate
according
to deign12 Out color casing
13
Fluidizer bed cowl GBZG4Cr26Ni6Mn3NRe ASTMZG4Cr26Ni6Mn3NRe
14 Center drum
15 Expansion joint
Metal &Nonmetal
16 Slagging pipe GB1cr18Ni9Ti ASTM1cr18Ni9Ti
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1.4 Structure chart of the Boiler
1.4.1 Elevation of the Boiler
1.4.2 Plan view of the Boiler
2 1st Blowing Fan 110,
1st Blowing Fan System consists of 1 set of centrifuge fan of 110% volume which can
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satisfy boiler operation under full load. After heated by Air pre-heater, primary air enter intohot air-way, and then into air plenum of boiler. The 1st Blowing fan is of high operatingefficiency, well economy and easy examine and repair.
Qty. 1pc. Type 9-26 7.1D
Wind volume 14643 M3/h Air Pressure 12078 Pa Motor Capacity 90 Kw Rotate Speed 2900 r/min
photo ofAir Blower
3 2nd Blowing Fan 110 ,
, 2nd Blowing Fan consists of 1set of high pressure centrifuge fan of 110% volume which
can satisfy boiler operation under full load. Secondary air from nozzle of 2nd blowing fandirectly enter into boiler so that to supply oxygen to enhance combustion efficiency.
Qty. 1pc. Type 9-19 9D Wind volume 9233M3/h Air Pressure 4297Pa Motor Capacity 22 Kw Rotate Speed 1450 r/min
Photo ofSecondary Air Fan
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4 Induced Blowing Fan
Induced Blowing Fan is installed between Bag Filter and Chimney. Smoke aftercombustion are filtered by bag filter, and then injected into atmosphere by induced blowingfan. Induced blowing fan consists of centrifugal fan. Blades of induced blowing fan arespecial treated to increase wear-resisting and prolong performance period.
Qty. 1pc. Type Y6-41 NO11.2D Wind volume 43405 M3/h Air Pressure 5611Pa Motor Capacity 132 Kw Rotate Speed 1450 r/min
Photo of induced Blowing Fan
5 Feed Water Pump 2
Feed Water Pump consists of 2pcs. of motor-driven multistage pump,
one for use and one for standby. Qualified water after deoxidize will be
send to boiler by Feed Water Pump.
Qty. 2pcs. Model DG20-50*7
Flow rate Q=15-30M3 /h
Pump Lift H=350 m
Motor Power 55 Kw
Rotate Speed 2900 r/min.
Photo of Feed Water Pump
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6 Economizer Please refer to the List foregoing7 Electric Control System
The Control System of the Boiler includes 2sets of Power Cabinet, 1set of
Instrument Cabinet and 1set of Stokehole Instrument Cabinet. Details are
as follows:
Program of Control System of the Boiler( )
No. Name Model & Specification Qty.
1. Water Level of Boiler Barrel ()a Left Water
Level
Floater Sensor() HUGG-440 1
Liquid Level Adjustor
()
SZD-S-4 1
Control Valve() ZAZP-DN40/PN64 1
b Right Water Level
Electrode Sensor( )
UDZ-SX-15Q 1UDZ-SX-15Q-Z 1
c Water Level Guarder
()
14 color display and Vidicon
(14/+ 1 )
1
2. Air Door adjustment (), including induced air, primary air and secondary airOperator () DFD-09 3
Angle Actuator () DKJ-310 3
3. Adjustment for Coal Feeder ()Manual Operator() JD1A-40 1
4. Pressure
a Vapor Pressure
Transmitter () PMC-800 1
Digital readout () HR-WP-C803 1
b Pressure of feed water ( )
Transmitter () PMC-800 1
Digital readout () HR-WP-C801 1
c Air Pressure
()
Including Combustion chamber pressure, Air chamber pressure,
Combustion Chamber outlet pressure and Rear smoke pressure of
Economizer
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Transmitter () DFY 5
Digital readout () HR-WP-C801 5
5. Temperature
a Temperature in boiling layer ( ) Left and Right
Thermocouple ( ) WRN-330N 2
Digital readout () HR-WP-C803 2b Temperature of Return-Feeder () Left and Right
Thermocouple ( ) WRN-330N 1
Digital readout () HR-WP-C801 1
c Water Temperature in inlet & outlet of
economizer ( )
Thermal Resistance( ) WZP-280 2
Digital readout () HR-WP-C801 2
d Ejected smoke temperature ()
Thermal Resistance( ) WZP-230 1Digital readout () HR-WP-C801 1
6.Power Control System ( ), including induced air,132KW,star-triangle; primary air,90KW,star-triangle; secondary air,22KW,star-triangle; feed pump,22KW,star-triangle and coal
supply,3KW, straight rise ( 132KW - 90KW -
22KW- 22KW- 3KW)
6.1 Induced Air Air Switch () NM-225 200A 1
A.C. contactor () CJ20-160 2
CJ20-100 1
Protector (
) JR20-160 1Mutual Inductor () LMZ1-0.5 200/5 1
Time Relay () JS14-1A 60S 1
6.2 Primary Air same as the above
6.3 Secondary
Air
Air Switch () DZ47-63 60A 1
A.C. contactor () CJ20-63 2
CJ20-40 1
Protector () JR20-63 1
Mutual Inductor () LMZ1-0.5 75/5 1
Time Relay () JS14-1A 60S 1
6.4 Feed Pump Air Switch () DZ47-63 50A 1
A.C. contactor () CJ20-63 2
CJ20-40 1
Protector () JR20-63 1
Mutual Inductor () LMZ1-0.5 75/5 1
Time Relay () JS14-1A 60S 1
6.5 Coal Supply Air Switch () DZ47-63 15A 1
A.C. contactor () CJ20-16 1
Protector () JR20-16 1
6.6 Knife Switch () XD12-400/31 2
7. Cabinet ()
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Instrument Cabinet ( ) KGF-331 1
Power Cabinet ( ) GGD 2
Stokehold Cabinet () 1
Photo of Electric Instrument Cabinet Photo of Power Cabinet
8 Spiral Coal Feeder
On bottom of Bunker there is a Spiral Coal Feeder (not including Coal-Supply System).Details are as follows:
Model LS-200Spiral Type
Motor Power 4 Kw
Rotate Speed 125-1250 r/min.
Photo ofSpiral Coal Feeder
9 List of Valve and InstrumentNo. Name Model/Specificatio Qty.
1 Plate-type Fluviograph PN4.0 DN25 1pc.2 Sluice Valve PN4.0 DN25 6pcs.
3 Sto Valve PN4.0 DN80 9 cs.4 Check Valve PN4.0 DN80 2pcs.5 Stop Valve PN4.0 DN25 2pcs.
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6 Throttle Valve PN4.0 DN25 2pcs.7 Sto Valve PN4.0 DN15 1 c.8 1.5 0-4.0 MPa 1 c.9 Three-wa Valve PN10 DN15 3 cs.10 Sto Valve PN4.0 DN20 2 cs.11 Spring Safety Valve PN4.0 DN40 1pc.
12 Electric Control Valve PN4.0 DN40 1 c.13 Stop Valve PN4.0 DN40 1pc.
14 Sluice Valve PN4.0 DN40 8pcs.
15 Rapid Blow-off Valve PN4.0 DN40 8pcs.
16 Two-Tone Fluviograph PN4.0 DN25 1pc.
17 Sluice Valve PN4.0 DN150 1pc.
18 1.5 Pressure Gage 1.5 Grade 0-4.0 MPa 2pcs.
19 Stop Valve PN4.0 DN15 3pcs.
20 Spring Safety Valve PN4.0 DN80 2pcs.
10~11 Heating Power Deaerator
Deaerator will make feeding water atomized and mixed with hot steam
so that the water heated up to saturation temperature and non-dissolved
oxygen and other non-condensing gases in the water are removed so the
feeding water reaches required standard.
Performance parameter of Deaerator: Nominal Output 15 t/h
Working Pressure 0.02 Mpa
Operating Temperature 104
Inflow Water Pressure 0.2 MPa
Inflow Water Temperature 30
Photo of Pump for Deaerator
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Drawing of Deaerator for referance
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12 Control System of Deaerator: Matching Deaerator13 Sampler: Please refer to the List foregoing14 Continuous Blowdown Expander
CBE will continuously discharge water with high concentrate of
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salinity nearby the water surface in steam pocket out of boiler which will
make content of salt, silicon and other grain slag in water not too high so
that boiler is not hurt. Amount of discharged high salinity water can be
adjusted according to analysis result of the water. Secondary steam from
CBE will return to Deaerator for recycle. Cooled sewerage will enter into
sewer through cooling well. Specification of CBE:
Model LP-1.5
Diameter 800 mm
Working Pressure 0.7 Mpa
Operating Temperature 170
Volume 1.5 M3
Drawing of Continuous Blowdown Expanderfor reference
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15 Regular Blowdown Expander
RBE will regularly discharge water in boiler from nadir of boiler
(normally nadir is nether water box of water cooled wall)which will
remove grain slag and other sediments.
Specification of RBE:
Model DP-3
Diameter 1200mm
Working Pressure 0.15 Mpa
Operating Temperature 170
Volume 3M3
Drawing of Regular Blowdown Expander for reference
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16 Sub-Cylinder: Please refer to the List foregoing17 Bag Filter17.1 Main Specification of Bag Filter
No. Item Units 15t/h CFB Boiler
1
Smoke Discharge amount of boiler
m3/h 45000
2 Qty. of Bag Filter set 1
3 Smoke Temperature 165
4 Discharged Dust Density of boiler g/Nm3 30
5 Dust Emission Index g/Nm3 50
17.2 Introduce of Bag Filter ( Omitted)
17.3 Main parameter of Bag Filter 1 Parameter
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1.1 Model PPC96-7
1.2
Filtered Smoke Amount
m3/h 45000
1.3 Inlet temperature 165
1.4
Inlet dust density
g/Nm
3
1.5
Exit dust density
mg/N
m3
30
1.6 Efficiency of
Collecting dust
% >99.9
1.7 Filtering Area M2 672
1.8
Air speed when filtering
m/mi
n
1.0~1.2
1.9
Running resistance
Pa 1500
1.10
Pressure on housing
Pa 6000
1.11
Used compressed air
m3/m
in
2.1
1.12
Normal working pressure
of
MPa 0.40.6
1.13 Ratio of air leak % 3
2 Constructionof the Bag Filter
2.1
Characteristic
Air-box type pulse blowing
2.2 Amount of box 7 boxes
2.2.1 Material Q235 steel
2.2.2 thickness mm 4 card 5 rib
2.2.3 Service time 30years
2.3 Dust hopper type cone hopper
2.3.1
Angle of cone hopper
60
2.3.2 Amount of cone pcs. 3
2.3.3 Material Q235 steel
2.3.4 thickness mm 4
2.3.5 Service time year 30
2.4
Structural support
2.4.1 Total height
of landing leg
M according to
Technological requirements
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2.4.2 Material of
landing leg
Q235 Joist steel
2.4.3 Auxiliary
supporting material
Q235 angle steel
2.5 Railing & Q235 steel
2.6 Thermal insulationmaterial
Rock wool + color
3
Electrical control
3.1
Instrument & meter
3.2
Overall dimension of
Control cabinet
mm LWH=2505001250
3.3 Control System Pulse controller & circuit of
secondary wire
3.4 Pulse Controller
3.4.1 Element S7200PLC
Programmable controller
3.4.2 DCS Port According to the
requirement of user
3.4.3 Soft ware T T-type drawing
3.4.4 Output point DC24V Passive
3.5 Circuit of
secondary wire
3.5.1 Element Relay
3.5.2 Output point According to the
requirement of user
3.5.3 Control mode
Concentrate-adjacency-
manual operation4 Main element4.1 Pulse valve
made in Shanghai
4.1.1 Model SCG353A060
4.1.2 Specification 2.5# Right angle
4.1.3 Number pc. 7
4.1.4 Service time 100
Blowing 1000000time
4.1.5 Device of
Blowing control
PLC PLC control
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4.2
Lift valve(cylinder)
made in Shanghai
4.2.1 Model SCD100250
4.2.2 Specification 100250mm
4.2.3 Number pc. 7
4.3 Filter-bag
4.3.1 Type of Filter bag Cylinder bag
4.3.2 Material of bag PPS FMS PPS or
4.3.3 Size of bag mm 1302480
4.3.4 Weight of bag g/ 540
4.3.5 Number of bag 672
4.3.6 Service time 2 normally 2 years
4.4 Cage
4.4.1 Material of cage Q195 Surface
treated by organosilicon
4.4.2 Type of cage Round
4.4.3 Size of cage mm 1202450
4.4.4 Number of Pcs. 672
17.4 Drawing of Bag Filter for referance
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18 Thionizer: Please refer to the List foregoing19 Fireproofing Material:
Please refer to other introduction20 Soot Blowing System: Please refer to the List foregoing
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