Drainage and irrigation machinery, usually irrigation and drainage, driven by an engine, water from very low places, high and distant, and famous water machines.
There are many kinds of pumps, and they are widely used in various fields of national economy. In agriculture, mainly in the paddy field drainage, irrigation pump, in case of drought, in case of floods across the drainage, to ensure the ability of land and water disasters, to promote crop harvest, stable harvest, agricultural production.
Use general agricultural pump, centrifugal pump, axial pump, blending pump, water pump, submersible pump, hydraulic turbine pump, etc..
Agricultural production, according to the geographical conditions of production, according to the requirements of the drainage and irrigation machine performance. The plain area, such as the province with the Pearl River Delta, river water of sufficient broad fields, autumn and winter drought, summer rain, often heavy rain, heavy rain, farmland waterlogging drainage requirements. These terrain depressions, Yang water level is not high, but a considerable amount of irrigation and drainage pipeline, should adopt a "low head, axial flow pump with large flow characteristics. In the mountainous regions, narrow field, so get the water head high, little traffic, should choose the performance characteristics of "high lift centrifugal pump, the stream". Some of the mountainous regions in view of the mountain suddenly rapids, hydraulic resources rich, solve the hydraulic turbine pump, water penetration, highland irrigation. Hilly areas near Guangzhou, the hills are not high, not large pump performance, than the small flow axial pump, as well as centrifugal pump flow; Yang pump performance is smaller, higher and higher. In the northern region, the surface water is not much, we must develop groundwater, irrigation fields, so extensive use of deep well pumps, Asakai pumps, submersible pumps. Therefore, proper drainage and irrigation machines should be selected.