How to effectively reduce the pump energy consumption
　  First, the internal surface of the pump and pressurized water chamber (also known as volute) uneven inner surface rust. The unevenness of the surface rust will reduce the pump water volume by 7% -8%; when using steel brushes and iron sandpaper or grinding wheel to polish and smooth, it can reduce the fuel consumption or power consumption by 9% -14% while working.
Second, seal ring gap increases. According to the test, when the gap in the impeller radius increases 4 mm, the pump water will be reduced by 10%; maintenance only need to use organic adhesive plus asbestos to restore the factory clearance, you can make the pump fuel consumption at work or Power consumption reduced by 10% -12%.
Third, the pressure chamber and the impeller axis do not coincide. According to the test, when the water pressure chamber and the impeller axis deviation of 2 mm or more than 2 degrees angle, the pump will reduce the water 5% -6%; overhaul, only careful measurement, carefully identify the axis coincide with a solid position, You can pump the oil or electricity consumption in the work to reduce 6% -7%.
Fourth, the blade installation angle is inconsistent. When the blade installation angle is inconsistent, the pump water will be reduced by 5%; maintenance, the use of the angle of the amount of feet, the installation of firmly fixed position, you can make the pump when the work of fuel consumption or electricity consumption by 5% -6%.
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