Views:2 Author:Site Editor Publish Time: 2019-04-03 Origin:Site
The deep well pump is a vertical multistage centrifugal pump, which can bring water from the deep well. Along with the decline of groundwater level, the use of deep well pump is wider than that of general centrifugal pump. But some users due to improper s
The deep well pump is a vertical multistage centrifugal pump, which can bring water from the deep well. Along with the decline of groundwater level, the use of deep well pump is wider than that of general centrifugal pump. But some users due to improper selection, not loaded into, water shortage, pumping Sheung Shui to, even wells damage and other issues. So how to choose the deep well pump is particularly important.
(1) according to the borehole diameter, initial water pump. Different types of pumps have a certain requirements for the size of the hole diameter, the maximum size of the pump to be smaller than the diameter of 25 ~ 50mm. Wakawai Kongsha, the maximum size of the pump should be smaller. In short, the pump body part can not be close to the wall of the well, the water pump vibration will damage the well.
(2) according to the amount of water in the well, the flow rate of the well pump is selected. Each hole has an economically optimal out of water, the pump flow should be equal to or less than water wells was reduced to half of the depth of wells water volume. When the pumping more water than the motor pumped well water, will cause motor pumped well wall collapse deposition, wells influences the service life; if the pumping volume small, the benefit of the well is not brought into full play. Therefore, the best way is to carry out pumping water test, the water well may provide the greatest amount of water as the basis for the selection of the pump flow. The pump flow rate, with marked label type or specification of the digital standard.
(3) according to the well water level decreased depth and water head loss of pipeline, determine the actual needs of the well pump lift, the lift of pump wells, it is equal to the water to the water tank of the vertical distance (net lift) and loss of lift. Loss head is usually the net head of 9% ~ 6, generally 1 ~ 2m. The bottom of the pump impeller into the water depth of 1 ~ 1.5m is appropriate. The total length of the pipe under the pump should not exceed the provisions of the manual pump wells into maximum length.
(4) the water sediment concentration of more than 1/10000 wells, used for the installation of deep well pump. Because the wells sediment concentration is too large, such as more than 0.1%, will accelerate the rubber bearing wear, causing the pump vibration, shorten the service life of the pump.