Shijiazhuang Jiemu Machinery Equipment Co.,Ltd |
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10/8S-G Sugar Plant Electric Centrifugal Pump , sand suction pump
Applications
Water pump failure analysis and treatment
Different types of pumps, the failure of the form of expression is
not the same, but in general, there are 5 common characteristics.
(1) insufficient flow;
Causes: lack of impact of water flow is the water pipe leakage,
valve leakage; water plugging; water depth at the end of valve
insufficiency; the pump speed is too low; the impeller sealing ring
or excessive wear; high water exceed the standard.
Treatment methods: check valve and water pipe, blocked the leak
source; clean water inlet sludge or blockage; water depth at the
end of valve must be greater than 1.5 times the diameter of the
water inlet pipe, increase the water depth at the end of valve;
check the power supply voltage, improve the pump speed, to replace
the sealing ring or impeller; the installation of pumps to reduce
or replace the high lift pump.
(2) power consumption is too large
Cause: pump speed is too high; pump shaft bending or pump shaft and
motor shaft misalignment or not parallel; selection of the pump
head is not suitable; pump suction or sediment blockage; motor ball
bearing damage.
Treatment methods: check the circuit voltage, reduce the pump
speed; the relative position correction of pump shaft or adjust the
pump and motor; appropriate lift pump; clean sediment or blockage;
the replacement of ball bearing motor.
(3) violent vibration or noise of pump body;
Causes: pump installation is not fixed or water pump installation
is too high; motor ball bearing damage; water pump spindle bending
or with the motor spindle is not concentric, not parallel.
Handling method: install the stable water pump or reduce the
installation height of the water pump; replace the motor ball
bearing; correct the bent main shaft of the pump or adjust the
relative position of the pump and the motor.
(4) overheating of drive shaft or motor bearing;
Causes: lack of lubrication or bearing breakage.
How to do it: add lubricating oil or replace the bearings.
(5) the water pump does not produce water
Causes: pump body and suction pipe are not filled with water; the
water level is lower than the water pump filter pipe; water pipe
rupture.
Processing method: remove the end of valve failure, filled with
water; reduce water pump installation, and make the water pipes
under the water level in the dynamic, or moving water pipes or
filters and then pumping; repair or replacement of water pipes.
PERFORMANCE
Pump Model | Allowable Max. Power (kw) | Clear Water Performance | ||||||
Capacity Q | Head H (m) | Speed n(r/min) | Max.Eff. (%) | NPSH (m) | ||||
m3/h | l/s | |||||||
10/8S-GH | 560 | 216-936 | 60-260 | 8-52 | 500-1000 | 65 | 3-7.5 | |
10/8S-G | 560 | 180-1440 | 50-400 | 24-30 | 500-950 | 72 | 2.5-5 | |
Model | Outlet diameter (mm) | Speed (r/min) | Flow m³/h | Head (m) | Effeciency (%) | Motor Power (kw) | Impeller diameter (mm) | Maximum permissible particle size (mm) |
10/8F-G | 200 | 500 | 216.00 352.80 489.60 | 12.50 12.00 10.80 | 60 | Y250M-8 30KW Y280M-8 45KW | 565 | 178 |
10/8F-G | 200 | 600 | 244.00 432.00 594.00 | 18.00 17.10 15.50 | 60 | Y280M-8 45KW Y315S-8 55KW Y315M-8 75KW | 565 | 178 |
10/8F-G | 200 | 700 | 237.60 468.00 684.00 | 24.80 23.70 21.40 | 60 | Y315M-8 75KW Y315L1-8 90KW Y315L2-8 110KW | 565 | 178 |
10/8F-G | 200 | 800 | 306.00 540.00 792.00 | 32.00 31.00 28.00 | 60 | Y315M-6 90KW Y315L2-6 132KW JS126-6 155KW | 565 | 178 |
10/8F-G | 200 | 900 | 349.20 612.00 882.00 | 40.50 39.20 34.80 | 60 | Y315L2-6 132KW JS126-6 155KW JS127-6 185KW | 565 | 178 |
10/8S-GH | 200 | 600 | 388.80 630.00 810.00 | 32.00 30.00 28.00 | 60 | Y315M-8 75KW Y315L1-8 90KW Y315L2-8 110KW | 711 | 180 |
10/8S-GH | 200 | 700 | 443.00 731.00 943.00 | 43.20 40.80 38.00 | 60 | Y31512-8 110KW Y315L2-6 132KW JS128-8 155KW | 711 | 180 |
10/8S-GH | 200 | 800 | 504.00 839.00 | 56.50 52.80 | 60 | JS127-6 185KW | 711 | 180 |
10/8S-GH | 200 | 500-950 | 750-1300 | 20-75 | 70 | 560 | 686 | 180 |