‘Yule’ Centrifugal fan MODEL CAPACITY :
• FLOW RATE FROM 2000 M3/Hr TO 30,00,000 M3/Hr • PRESSURE UPTO 4900 mm WG • TEMPERATURE UPTO 450 DEG.C (CONTINUOUS) • SPEED UPTO 3000 RPM • POWER UPTO 6 MW FOR SINGLE FAN
SPECIALITY:
• HIGH EFFICIENCY • GUARANTEED PERFORMANCE • SOUND MECHANICAL RUNNING, LOW NOISE • QUICK DELIVERY • ONE YEAR ON-SITE WARRANTY (excl. wear liners) • VERY RELIABLE SERVICE BACK-UP BY REAL EXPERTS IN THE FIELD
FAN MODEL SELECTION :
• BEST EFFICIENCY MODEL SELECTED BY A SPECIAL SOFTWARE PACKAGE • ESTIMATED PERFORMANCE CURVE GENERATED. • FAN DESIGN (IMPELLER, SHAFT –> MATL, PLATE THK, WT., WK2 etc.) DONE BY
COMPUTER AIDED DESIGN (3D) • BEARING, COUPLING SELECTION, DAMPER TORQUE etc. ALSO DONE BY Auto-
CAD. • SPEED-TORQUE CURVE GENERATED- FOR MOTOR SELECTION BY MOTOR
MANUFACTURER. Efficiency of different Models of Fan
Estimated Performance Curve of Fans
5 0
x
7 M
M W
G S
TA
TIC
PR
.
D a m p e r c u rve s a re @ 1 5 D e g .c lo s in g
6
x 2 2 8 0 0 M /H r. V O L U M E F L O W R A T E
543210
F D F A N
4 0
3 0
2 0
1 0
1 41 31 0 1 198 1 27
D E S N . S H .P O W E R7 0
2 0
7 0
8 0
6 0
6 0
5 0
4 0
3 0
D E S IG N D U T Y
A C T U A L D U T Y
A C T U A L S H . P O W E R
1 4 8 0 R P M , D E N S IT Y = 1 .0 3 5 2 K g /m 3
E S T IM A T E D P E R F O R M A N C E C U R V E
Estimated Speed-Torque Curve of Fans (required for Motor selection)
1 1 0 .5B R E A K -A W A Y T O R Q U E
5 . T ra n s m is s io n b y : F le x i.C p lg .
4 . K e e p In le t D a m p e r F u ll S h u t
2 . T o rq u e a t S h .P o w e r 1 8 3 9 K g f-m3 . D e s ig n S h a ft P o w e r 1 6 5 0 K W
1 . R o to r W t= 1 1 5 0 0 K g f; G D 2 = 1 2 0 0 0 K g -m 2
With In
let Dam
per Full
Clo
sed
at 40 d
eg. C
1 0 2 0 3 0 4 0
K G F -M
5 0 6 0 7 0 8 0
1 0
9 0 1 0 0
2 0
4 0
3 0
5 0
w h ile s ta rt in g
7 0
6 0
8 0
1 0 0
9 0
E S T IM A T E D F A N S P E E D - T O R Q U E C U R V E
RANGE OF APPLICATION:
POWER PLANTS:
• ID FAN - UPTO 21 LAC M3/Hr. -> NTPC- RIHAND TPS: 3186 MM DIA IMPELLER; 2060280 M3/Hr.; 352 MM WG ST. PR; 2.82 MW; 720 RPM; IMP+SHAFT WT = 23.4 T -> NTPC-TALCHER TPS: 2560 MM DIA IMPELLER; 684000 M3/Hr.; 350 MM WG ST. PR.; 0.8 MW; 740 RPM; IMP+SHAFT WT = 9.4 T
• FD FAN -> UPTO 6 LAC M3/Hr -> WBPDCL- KOLAGHAT TPS : 2045 MM DIA FAN ; 515520 M3/HR ; 425 MM WG ST.PR. ; 0.95 MW ; 980 RPM
• PA FAN : UPTO 1 LAC M3/Hr; 1500 mm WG ST.PR; 1500 RPM
• SA FAN : UPTO 0.3 LAC M3/Hr; 1800 MM WG ; 3000 RPM
STEEL PLANTS :
• SINTER EXHAUST FAN -> UPTO 12 LAC M3/Hr -> VIZAG & ROURKELA STEEL PLANT: 3660 & 3695 DIA FAN ; 9-11 Lac M3/HR ; 1500-1600 MM WG ST.PR. ; 4.2 – 5.2 MW ; 990 RPM -> TISCO : 4010 MM DIA FAN ; 9.3 Lac M3/HR ; 1662 MM WG ST.PR. ; 4.97 MW ; 980 RPM
• GB, CA & ID FANS: UPTO 3 LAC M3/Hr; 750 mm WG ST.PR; 2980 RPM
CEMENT PLANT: for all types of application viz. PA, Raw Mill, Coal Mill, Cement Mill, Cooler, Separator, Bag House, ESP/Waste Gas/P.H. etc. Capacity Range: 2,000 – 8,00,000 m3/hr ; St. Pr: 100-1800 mm Wg. Temp. up to 420 deg.C ; Speed: 600-3000 RPM ; Effy. up to 87%
• Raw Mill Fan: -> GRASIM PLANT: 2910 DIA Double Inlet Fan ; 6.3 Lac M3/Hr; 970 mm WG ST.PR. ; 105 deg.C; 2.1 MW ; 990 RPM
• Kiln ESP Fan: -> PRIYADARSHINI CEMENT: 2265 DIA Double Inlet Fan; 4.98 Lac M3/Hr; 175 mm WG ST.PR. ; 368 KW; 740 RPM
• Cement Mill Fan: -> VIKRAM CEMENT : 1980 DIA Single Inlet Fan ; 1.4 Lac M3/HR ; 1020 mm WG ST.PR. ; 475 KW ; 985 RPM
BEARINGS AND BEARING HOUSINGS OF
‘YULE’ MAKE
• WHITE METAL LINED SLEEVE BEARING (2” TO 10” SIZE ) – RING LUBRICATED , WATER COOLED
• PRESSURE FED WHITE METAL LINED SLEEVE BEARING (2” TO 12” SIZE)
• HOUSINGS FOR DOUBLE ROW SPHERICAL ROLLER BEARINGS (DRSR) -> 60 MM
DIA UPTO 200 MM DIA
YULE make Ring Lubricated DRSR Bearing Housing
YULE make Uniblock Housings
QUALITY PLAN FOR YULE FANS :
• PLATES : CHEMICAL , PHYSICAL TESTS AND ULTRASONOGRAPHY • SHAFT : CHEMICAL , PHYSICAL TESTS AND ULTRASONOGRAPHY . • HUB : CHEMICAL & PHYSICAL TESTS • WHITE METAL BEARINGS : ULTRASONOGRAPHY AND PRESSURE TESTING
OF BRG.HOUSING • WELDING JOINTS : FOR IMPELLER -> FILLET JOINTS DP/ MPI TESTED ;
BUTT JOINTS -> MIN. 30% RADIOGRAPHY CARRIED OUT • STATIC COMPONENTS : QUALITY OF WELD & MANUFACTURING
STRICTLY CONTROLLED • STRESS RELIEVING IN OWN SR FURNACE • DYNAMIC BALANCING : ALL IMPELLERS AT SHOP AS PER ISO:1940 GRADES
6.3 / 2.5 • FAN ASSEMBLY : CARRIED OUT AT SHOP TO CHECK MATCHING OF
CRITICAL COMPONENTS • PERFORMANCE TEST & MECHANICAL RUN TEST : CARRIED OUT , AS
PER CONTRACT, AS PER BS: 848 PART .
WEAR PROTECTION IN FANS : • BLADE PROVIDED WITH LINERS (50% TO 100% WIDE) : (a) WITH HARD-SURFACING (650 BHN) or (b) HARDENED PLATES (HARDOX- 400/500) USED AS LINER • CENTRE SHEET LINERS (Adjacent to blade area) PROVIDED • OPEN BLADED IMPELLERS USED FOR HEAVY DUST LOAD • Volute Casing also provided liner , if required • REMOVABLE LINERS FOR EASY REPLACEMENT
VIBRATION AND NOISE :
• VIBRATION RANGE OF MACHINE CLASS-III FANS ARE AS PER ISO: 2372 / VDI 2056 -> 1.8 MM/S TO 11 MM/S ; NORMAL VALUE 2 TO 4 MM/S
• NOISE LIMIT : 85 dB @ 1M FROM FAN without or with SILENCER /
ACCOUSTIC LAGGING/ ACCOUSTIC ENCLOSURES – as may be the case PERFORMANCE TEST :
Testing Facility : • Own Test Bay • Test Duct upto 2m dia • Calibrated testing Instruments • Testing as per BS:848:Part-I • Test Report & Curve generated by Computer • Expert Testing Team
Fan Operation : Myth and Reality –
= - 2 .0 %ris tic E rro r
3 .6
'Q v ' IN L E T V O L . F L O W R A T E (m 3 /s ) 3 .0 3 .43 .2 3 .8
- 0 .0 7 m 3 /s
3 .4 m 3 /S , 1 1 0 0 P a
@ 1 .2 K g /m 3 d e n s ity5 K W S h .P o w e r
& S H A F T P O W E R & V A R IA T IO N S T H E R E O FV O L U M E F L O W R A T E , S T A T IC E F F Y .T O A S C E R T A IN A C T U A L (O B T A IN A B L E )
Fa
n T
ota
l o
r S
tati
c P
r. in
Pa
9 0 0
1 0 0 0
1 1 0 0
P o in tA c tu a l D u ty
C h a ra c te -P 1 =
C x
Qv ^
2
C u rveT e s t
5
Sh
aft
Po
we
r
2in K
W
1 2 0 0
43
6 E s tim a te d
S h .P o w e rA c tu a l
S h .P o w e r
E s tim a te dC u rve
T E S T P O IN T S
S P E C IF IE D D U T Y
-0 .3 K W
= - 6 %
P E R F O R M A N C E T E S T O F F A N
• Dynamic Balancing to be done at Rated Speed of Fan -> Not essential. Balancing Machines can do the job very well at their rated speeds of 200/ 400 RPM as they are sensitive enough and calibrated for these speeds
• Shaft to be Dynamically Balanced : Not required -> As Shaft unbalance is
within 0.1% of Impeller’s Permissible Residual unbalance • Always Use Silencer to reduce Noise : System Resistance will increase and
power may go up by 5 to 15% . CONTACT INFORMATION :
• For Fan, Spares enquiry/ Offers:
Mr. A.K. Dutta - +919903032720 , Mr. Sandipan Das: +919831501221 / +919836744337.
Mr. Swarup Ghosh: +918100975193.
• For ESP/ Bag Filter /spares enquiry/ Offers & WPC Execution:
Mr. Sourav Sengupta: + 919830853319. / Mr. T. K. Chattopadhyay: +919874420015.
• For Fan PO/ Contracts related matters:
Mr. Vivek Dolai: +919836744825. / Mr. EP Radhakrishnan: 0332242 5979
Mr. Amit Ganguly: +919874573880 , Mr. Sarasij Ghosh - +919433660240
• For Installation & Service related issues:
Mr. A. K. Chowdhury: +919830286070. / Mr. S. N. Mullick: +919836744823.
‘Yule’ Air Pollution Control Electro Static Precipitator ( ESP )
Pulsejet & Reverse jet Bag Filter / Bag House
Fume Extraction & Cleaning Systems . Gas Conditioning Towers . De-dusting Systems in Electric Arc Furnaces .