Common types of agricultural pumps and their applications

In recent years, our country is affected by geography and climate, and agricultural production is often threatened by floods and floods. Therefore, in the development of agricultural machinery, the irrigation and drainage irrigation mechanization is always given priority in development.

There are many types of irrigation and drainage machinery, and their performance varies. Commonly used agricultural pumps are:

1, submersible pump submersible pump main features are small, easy to move. Where power is available, it is widely used for pumping deep and shallow rivers and channels. The QY type oil-filled submersible pump is composed of a water pump, a motor and a motor sealing device, and the water pump is a vertical type. According to different lifts, centrifugal pumps, mixed flow pumps or axial flow pumps can be used.

2. Centrifugal pump Centrifugal pump is a kind of vane pump that uses the centrifugal force generated when the impeller rotates. It is divided into single suction pump and double suction pump according to the water absorption method; it is divided into single-stage pump and multi-stage pump according to the number of impellers; The location is divided into vertical and horizontal pumps. Centrifugal pump mainly consists of impeller, pump body, pump shaft, bearing, packing room, belt wheel, bracket and other components. Centrifugal pumps have a wide range of flow rates and heads. They are currently used most widely and are used extensively in the plains, mountains, and hills.

3. Axial flow pump Axial flow pump is a type of vane pump that uses the axial thrust of the impeller to lift water. Its characteristic is that the flow rate is relatively large and the lift is low. It is suitable for the plain river network area and most of them are vertical axial flow pumps, that is, ZLB type axial flow pumps.

4. Hydro-turbine pump The hydro-pump is a combination of a water-powered turbine and a water pump, which is potentially operating in water. In regions rich in water resources, it is worth promoting.

5. Mixed-flow pump The mixed-flow pump is a type of vane pump that uses centrifugal force and axial force of the impeller to lift water. The mixed-flow pump is divided into a volute type (ie, HB type pump) and a guide vane type (ie, LN type, HL type). The performance is between the above two, and the pumping and drainage of farmland in the southern rice region is mostly adopted.