1、2005 Product Catalog SLOW CENTRIFUGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION BISECT VOLUTE TYPE01 01 02 02 03 04 06 07 08 10 10 11 12 Product outline Product characteristic Main part material About the model Schematic drawing of pump turning Pump structure darwing Performance data Performance curve
2、 Installation overall dimension drawing Transportation and hoisting of pump Installation of pump Start, operation and stop of pump Disassembly and assembly of pump Maintenance of pump 13PRODUCT OUTLINE 01SLOW oo -10 C 80 C PRODUCT CHARACTERISTIC 1480r/min 8000( ZL200520046059.0SLOW Centrifugal Pump
3、of Double-stage and Double- suction Bisect V olute T ype is specially designed and manufa- ctured by our company for using in the occasions which req- uire large flux and high lift, such as iron works, electric power plants and pump station, etc. In combination with advanced design experience of dou
4、ble-stage bisect pump at home and aboard, the products are processed by using special machine tool. This product is applicable for feeding such media as water oo or liquid similar to water at the temperature from -10 C to 80 C Water inlet and outlet are all installed in pump body. Just hoist the pum
5、p cover when overhaul, greatly facilitating maintenance.Primary-stage double-suction and secondary-stage single-suction of impeller adopted, greatly improving anti-cavit-ation performance of pump and decreasing axial dimension of pump.At rotary speed of 1480 rpm, avoiding vibration caused by high ro
6、tary speed.In comparison with single-stage pump, the products havesame performance and smaller impeller diameter and stable operation. The pumping chamber adopts double-volute design, redu-cing radial force.Applying rolling bea ring a nd lub rication wi th grease or thin oil and facilitating the mai
7、ntenance of bearing.Designing in virtue of international advanced hydromech-anics software, modeling by using 3DM software, and ch-ecking the strength with finite element software, ensuring high efficient, stable and reliable operation of pump.Fully mechanical seal ensures no leakage within 8000 h,a
8、nd packing seal is customizable.The pump turns clockwise, and anticlockwise turning iscustomizable.This product has applied for national patent (patent num-ber: ZL200520046059.0) SLOW CENTRIFUGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION BISECT VOLUTE TYPEMAIN PART MATERIAL 02 Part Material Pump body
9、Pump cover Impeller Cast iron Magnesium iron Cast steel Cast steel Magnesium iron Cast steel Cast iron Magnesium iron Cast steel Stainless steel HT250 QT400-18 ZG230-450 HT250 QT400-18 ZG230-450 HT250 QT400-18 ZG230-450 1Cr18Ni9Ti Shaft Seal ring Carbon steel Stainless steel Cast steel 40Cr 2Cr13 HT
10、200 2Cr13 QT400-18 denotes general supply , to be supplied as request. Magnesium iron Stainless steel ABOUT The MODEL SL OW 250 - 610 2 2 Two impellers Nominal diameter of impeller Outlet diameter of pump Double-stage and double-suction centrifugal pump Shanghai Liancheng Part Material03 SCHEMATIC D
11、RAWING OF PUMP TURNING ABC The pump can also be manufactured as per A, B and C turning directions, which shall be specified in contract. A B C Water inlet Clockwise rotation of motor Water outlet Anticlockwise turning of motor Water outlet Water inlet Clockwise rotation of motor Water outlet Water i
12、nlet Anticlockwise turning of motor Water inlet Water outlet SLOW CENTRIFUGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION BISECT VOLUTE TYPEclockwise normalSLOW150-570 2 SLOW200-530 2 Structural diagram 1 (for SLOW150-570 2 and SLOW200-530 2) Pump casing 12 3 4 5 6 7 8 9 10 Water-sealedpipe Mechanical s
13、eal Pump cover Secondary- stage impeller Gland of mechanical seal Bearing body Seal ring Shaft Bearing Interstage cover Shaft sleeve A Shaft sleeve B Releasing cover Primary- stage impeller Clutch Balancing water pipe 11 12 13 14 15 16 17 18 19 19 18 17 16 1234567891 01 11 21 31 41 5 Bearing Seal ri
14、ng 04 PUMP STRUCTURE DARWING05 SLOW CENTRIFUGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION BISECT VOLUTE TYPE PUMP STRUCTURE DARWING SLOW250-610 2 Structural diagram 2 (for SLOW250-610 2 ) pump casing 123 4 5 6 7 8 9 10 Water-sealed pipe Pump cover Secondary- stage impeller Gland of mechanical seal 11
15、12 13 14 15 16 17 18 19 1234567891 01 11 21 31 41 5 19 18 17 16 Mechanical seal Seal ring Bearing body Shaft Bearing Interstage cover Bearing Shaft sleeve A Shaft sleeve B Seal ring Releasing cover Primary- stage impeller Clutch Balancing water pipe PERFORMANCE DATA 06 Pump type Q H n P (NPSH) r W 3
16、 (m /h) (L/s) (m) (r/min) (Kw) (%) (m) (Kg) SLOW150-570 2 SLOW150-570 2A SLOW150-570 2B SLOW200-530 2 SLOW200-530 2A SLOW250-610 2 SLOW250-610 2A SLOW250-610 2B SLOW250-610 2C 320 450 580 89 125 161 228 210 184 1480 1480 1480 1480 1480 1480 1480 1480 1480 400 77 280 400 520 78 110 144 194 180 160 24
17、0 350 460 67 97 128 172 160 142 600 760 950 167 211 264 185 170 148 550 740 900 153 206 250 178 160 139 900 1250 1550 250 347 431 262 240 206 800 1150 1400 222 319 389 228 210 180 750 1080 1300 208 300 361 200 180 158 700 1000 1200 194 278 333 170 150 128 315 250 560 500 1120 900 800 560 76 75 78 77
18、 83 82 81 80 4 4.2 4.4 1760 2200 280007 PERFORMANCE CURVE H(m) 260 210 160 110 60 Pa(kw) 500 350 200 50 0 100 200 300 400 500 600 700 3 Q(m /h) NPSHr(m) 8 6 4 2 80 60 40 20 0 (%) 1480r/min H(m) 220 180 140 100 Pa(kw) 600 400 200 0 0 150 300 450 600 750 900 1050 3 Q(m /h) (%) 80 60 40 20 0 8 6 4 2 NP
19、SHr(m) SLOW200-530 2 SLOW200-530 2A 1480r/min 300 H(m) 250 200 150 100 Pa(kw) 1400 1000 600 200 0 250 500 750 1000 1250 1500 1750 3 Q(m /h) 0 20 40 60 80 (%) NPSHr(m) 8 6 4 2 1480r/min SLOW150-570 2 SLOW150-570 2A SLOW150-570 2B SLOW250-610 2 SLOW250-610 2A SLOW250-610 2B SLOW250-610 2C SLOW CENTRIF
20、UGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION BISECT VOLUTE TYPEINSTALLA TION OVERALL DIMENSION DRA WING 08 Pump type L Motor model Motor power Motor volt- age L1 3050 2930 2930 3110 3110 3600 3430 3430 3300 500 500 500 500 500 590 590 590 590 anchor bolt Motor weight Inlet flange Pressure grade Outl
21、et flange SLOW150-570 2 SLOW200-530 2 SLOW250-610 2 DN1 200 250 300 D3 310 370 430 D4 360 425 485 b1 34 36 40 n1-d1 12- 28 12- 31 16- 31 2.5MPa 2.5MPa 2.5MPa DN2 150 200 250 D5 250 310 385 D6 300 360 450 b2 34 34 44 4.0MPa 2.5MPa 4.0MPa n2-d2 8- 28 12- 28 12- 34 L2 420 420 420 470 470 550 550 550 55
22、0 L3 650 650 650 660 660 770 770 770 770 L4 160 160 160 160 160 160 160 160 160 L5 910 870 870 930 930 810 775 775 1000 L6 910 870 870 930 930 810 775 775 1000 L7 910 870 870 930 930 810 775 775 1000 L8 - - - - - 810 775 775 - L9 1920 1790 1790 1920 1920 2200 2000 2000 1920 B 840 740 740 840 840 106
23、0 920 920 840 B1 600 600 600 650 650 650 650 650 650 B2 500 500 500 550 550 550 550 550 550 H 400 355 355 400 400 500 450 450 400 H1 730 730 730 800 800 850 850 850 850 H2 1180 1140 1140 1250 1250 1400 1350 1350 1300 h1 300 300 300 350 350 350 350 350 350 h2 400 400 400 400 400 500 500 500 500 h3 53
24、0 530 530 600 600 650 650 650 650 C 4 4 4 6 6 6 6 6 6 2700 2130 2040 3010 2890 4500 3580 3440 3010 8-M24 400 8-M24 400 8-M24 400 8-M24 400 8-M24 400 10-M30 600 10-M30 600 10-M30 600 8-M24 400 6KV 6KV 6KV 6KV 6KV 6KV 6KV 6KV 6KV 400 315 250 560 500 1120 900 800 560 Y400-4 Y355-4 Y355-4 Y400-4 Y400-4
25、Y500-4 Y450-4 Y450-4 Y400-4 SLOW150-570 2 SLOW150-570 2A SLOW150-570 2B SLOW200-530 2 SLOW200-530 2A SLOW250-610 2 SLOW250-610 2A SLOW250-610 2B SLOW250-610 2C Outlet flange Inlet flange L1 L2 L3 L9 C H H1 H2 L4 L5 L6 L7 L8 L n1-d1 n2-d2 DN1 D3 D4 DN2 D5 D6 DN1 b1 B b2 DN2 h3 h1 h2 B1 B2 Pump type P
26、ressure grade 09 Overall dimension drawing of single pump Footing dimensions Pump weight Pump Water content LL 1 720 800 850 500 500 590 420 470 550 L2 650 660 770 L3 150 150 150 L4 700 800 600 B 600 650 650 B1 500 550 550 B2 300 350 350 h1 400 400 500 h2 530 600 650 h3 600 640 - L5 600 700 - B3 176
27、0 2200 2800 1960 2410 3060 SLOW150-570 2 SLOW200-530 2 SLOW250-610 2 DN1 D3 SLOW150-570 2 SLOW200-530 2 SLOW250-610 2 200 250 300 310 370 430 D4 360 425 485 b1 34 36 40 n1-d1 12- 28 12- 31 16- 31 2.5MPa 2.5MPa 2.5MPa DN2 1500 200 250 D5 250 310 385 D6 300 360 450 b2 34 34 44 n2-d2 8- 28 12- 28 12- 3
28、4 4.0MPa 2.5MPa 4.0MPa Overall dimension drawing of single pump SLOW250-610 2 A A view of the footing of SLOW250-610 2 Type Pump Outlet flange Inlet flange L1 L2 L3 L4 L5 L A B1 B2 DN1 DN2 h2 h1 h3 b1 b2 B 750 650 8- 28 360 520 DN1 D3 D4 DN2 D5 D6 n1-d1 n2-d2 B3 4- 28 L5 INSTALLA TION OVERALL DIMENS
29、ION DRA WING Pump type Pump type Inlet flange Outlet flange Pressure grade Pressure grade SLOW CENTRIFUGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION BISECT VOLUTE TYPETRANSPORTA TION AND HOISTING OF PUMP 10 INSTALLA TION OF PUMP 1 1) 2) 40 50mm 3) ( ) 4) 5) 2 1) 2) 3) 4) 5) 3 o 90 0.04mm 0.1mm Pump, m
30、otor and base shall be packaged separately andfirmly fixed on the conveyer.Hook on the cover of water pump is only for hoisting pump cover, not for the whole pump. Hanging ring on motor is only for hoisting motor, not for the whole pump set.For hoisting large pump, do not hoist the whole pump setat
31、the same time, but pump, motor and base separately. 1.pump and motor with public base 1)Concrete shall be firm enough before installation, and the surface shall be smooth and even. 2)Insert anchor bolt into the pre-moded hole of foundation,and place the base on the foundation. Remain distance of 40
32、50 mm between base and foundation, and adjust the base with plug or adjusting screw to make it horizontal. 3)It is necessary to grout the foundation bolt and base to make them firm. (The base must be grouted) 4)Screw down anchor bolt evenly. 5)Place the motor and pump on the base, adjust the concent
33、ri-city of the two axles accurately , and screw down pump footand anchor bolt of motor at the same time. 2.pump and motor without public base 1)Insert anchor bolt into pre-moded hole of foundation, andplace the pump on the foundation, plug under pump foot,and then adjust the horizontal of pump shaft
34、 at axle end with level meter. 2)Motor installation is identical with pump 3)Correct the concentricity of the two axles accurately. 4)Grout foundation bolt to make it firm. 5)Screw up anchor bolt and then recheck the concentricity of the two axles. 3.correct the concentricity of pump shaft And motor
35、 shaft Method: check the external diameter and end face of cl- utch with vernier caliper or micrometer caliper, turn measur- o ing tool at 90 evenly in each measurement. The machine set is well aligned if end face deviation and radial deviation of clutch are separately less than 0.04 mm and 0.1 mm.
36、11 START , OPERATION AND STOP OF PUMP 1 2 3 4 5 6 7 8 9 1.Check the following items before starting the pump 1)Whether all the instruments and meters work accurately; 2)Whether the base firmly connects with the foundation; 3)Whether the clutch is well aligned; 4)Whether the pipeline is connected as
37、request; 5)Whether the motor is installed according to operational instruction; 6)Whether the bearing is lubricated with grease; 7)Whether the air in the pump is exhausted; 8)Overhaul and replace mechanical seal if with large leakage; 9)Check whether turning direction of pump is identical with that
38、of motor by inching the motor. Frequently starting p-ump is prohibited. 2.Start The pump running dry is prohibitedOutlet valve shall be closed after fully exhaustion of pump and before starting the pump. Fully open inlet valve, close the cock of pressure gauge to prevent pressure gauge from being da
39、maged due to instant start and sudden rising pressure. Start the motor after finishing the following proce dures. Open the cock of pressure gauge when the motor runs at normal rotary speed. Rising pressure value will be seen t- hrough pressure gauge and then open outlet valve slowly. Start the motor
40、 following relative operational instruction if it does not start directly. Note: The outlet valve can only be closed when the pump starts or stops, and if the actual work- ing point of pump is not the point specified in the contract, adjust it with valve. 3. Operation The pump must work within allow
41、able scope, not the s- cope with low discharge. If it runs long-term within such sc- ope, machine load will increase greatly , making parts fail in standing. However, instant working within this scope is all- owable, for example, starting the machine. 4. Stop Close the cock of pressure gauge and out
42、let gate valve and open inlet valve. Ensure that machine set stops mildly when you stop the motor. If the pump is out of work for long time, close inlet valve, demount water pump, dry up the water on the parts, and then apply antirust oil to processing surface and keep it well. Start the pump for ab
43、out five minutes every month or three months to ensure the pump start at all time and avoid deposit producing in the pump or pump inlet. Compl- etely exhaust liquid in the pump if it is out of use for long time and at low ambient temperature. SLOW CENTRIFUGAL PUMP OF DOUBLE-STAGE AND DOUBLE-SUCTION
44、BISECT VOLUTE TYPEDISASSEMBLY AND ASSEMBLY OF PUMP 12 1 2 3 4 5 62 7 8 9 10 ; 11 12 13 , , 14 , , 15 1 2 3 4 5 62 7 8 9 1. Disassembly and assembly of structural diagram 1 1)Drain away liquid in the pump by closing inlet and outlet valves and opening the drainage and deflation screw plugs; 2)Disasse
45、mble auxiliary piping; 3)Disassemble the clutch protector; 4)Disassemble fasteners between the clutches of both pump nd motor; 5)Loosen mechanical gland; 6)Disassemble the coupling bolt and two taper pins on pumpcover and body. Remove pump cover and place it in safetyplace; 7)Loosen the connecting b
46、olts between bearing gland and be-aring body, and remove the connecting bolts between bear-ing body and pump body; 8)Withdraw the bearing bodies at two sides from the notch ofpump body, and sling up the rotor; 9)Haul down the clutch by wheel puller; 10)Disassemble bearing body of non-shaft-extension
47、 end, locknut, bearing body of shaft-extension end and axial circlip; 11)Haul down the bearings at two sides by wheel puller; 12)Disassemble the water deflector; 13)Disassemble mechanical seal carefully to avoid damage; 14)Disassemble the lock nut, axle sleeve and impeller. It is a-llowed to knock o
48、n the impeller hub with hammer or woodbar; 15)Assembly is opposite to the above procedure. 2. Disassembly and assembly of structural diagram 2 1)Drain away liquid in the pump by closing inlet and outletvalves and opening the drainage and deflation screw plugs; 2)Disassemble auxiliary piping; 3)Disas
49、semble the clutch protector; 4)Disassemble fasteners between the clutches of both pump and motor; 5)Loosen mechanical gland; 6)Disa ssemble the coupling bolt and two taper pins on the pump cover and body . Remove the pump cover and place it in saf-ety place; 7)Remove the connecting bolts between the bearing body andpump body, and then sling up the rotor; 8)Haul down the clutch by wheel puller; 9)Disassemble the bearing body gland and lock nut;13 10 11 12 , , 13 , , 14 MAINTENANCE OF PUMP 1 2 3 4 5 6 7 8 9 10 oo 11 30 C 80 C 1/3 1/23 10)Pull and hold the bearing retaining cover with spe
