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How to classify and select water pump for irrigation
Release time:2021-06-11      Number of hits:130

How to classify and select the type of agricultural water pump for farmland irrigation:

Agriculture is inseparable from water, so it can not be separated from the pump, different areas have different choices, there are three main types of agricultural pumps for choice: mixed flow pump, centrifugal pump, and submersible pump.

Mixed flow pump for agricultural use

Industrial water supply and drainage. Mixed flow pump belongs to a pump between centrifugal pump and axial flow pump, the water output is large, but the head is lower, and it is suitable for the areas with rich surface water in the south. A common model is the HW mixed-flow pump, which can be powered by a motor or a diesel engine. Can also according to the user's requirements to develop a variety of forms of mixed flow pump (such as vertical, mechanical seal, special materials, etc.), users and according to the use of specific requirements to change the speed of the pump within a certain range.

Agricultural centrifugal pump

Centrifugal pump is the use of impeller rotation to make water centrifugal motion to work. There are many models to choose, and the range of flow and head is also large. It is a widely used pump in agriculture. Plain area can choose a lower head centrifugal pump, hilly area can choose a moderate head, high altitude area can use a higher head multi-stage centrifugal pump. Users should choose and buy according to local ground conditions, water sources and water lifting height. Common models are: IS centrifugal pump, ISW horizontal centrifugal pump,B centrifugal pump,BA centrifugal pump, S/SH type double suction centrifugal pump, D/DG type multi-stage centrifugal pump.

Agricultural submersible pumps

Submersible pump it is suitable for pumping water from deep Wells: mainly used for farmland irrigation and plateau mountain irrigation use, mainly used for North China and other surface water lack of plain areas. Common models are mainly: QJ type well with submersible pumps.

1, Submersible pump motor, pump integrated, diving into the water operation, reliable.

2, no special requirements for the well pipe, water pipe (that is: steel pipe well, ash pipe well, soil well, etc., can be used; Under the pressure permit, steel pipe, rubber pipe, plastic pipe and so on can be used as water pipe.

3. Easy installation, use and maintenance. Small footprint, no need to build a pump room.

4, simple structure, save raw materials.

5, the use of submersible pump conditions are appropriate, proper management and service life has a direct relationship.

After determining the type of agricultural water pump, customers should consider its economic performance, especially pay attention to the head and flow of the pump and the choice of supporting power. It should be noted that the head indicated on the pump label (total head) and the use of water lift (actual head) is different, this is because the water flow through the water pipe and pipeline near there will be a certain resistance loss. Therefore, the actual head is generally lower than the total head 10-20 percent, water output is also reduced accordingly. Therefore, the actual use, can only be estimated by 80 ~ 90 percent of the head and flow of the sign, the choice of pump matching power, according to the power selection indicated on the sign, in order to make the pump start quickly, the power of the power machine can also be slightly greater than the power needed by the pump, generally about 10 percent higher is appropriate; If the power is available, the pump can be selected and purchased according to the power of the power machine.


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