Drainage and irrigation machinery usually refers to the water pump used for irrigation and drainage of farmland. It is driven by a power machine and can pump water from a low location to a high or remote location. The pump is also commonly referred to as a pump.
The pumps are widely used and widely used, and they are used in various fields of the national economy. In terms of agriculture, pumps are mainly used for farmland irrigation and drainage, in case of drought and energy irrigation, and in the event of flooding, the ability to overcome floods and droughts is enhanced to ensure the high yield and stable production of crops and promote agricultural and sideline production.
Common types of agricultural pumps include centrifugal pumps, axial pumps, mixed-flow pumps, well pumps, submersible pumps, and water wheel pumps. In agricultural production, drainage and irrigation machinery with different properties should be selected according to the requirements of production conditions in different regions. In the plain areas, such as the Pearl River Delta of our province, there are plenty of riverbed water resources, and the fields are vast. Autumn and winter are arid, and summers are rainy. They often encounter heavy rain, heavy rain, and farmland, and require rapid drainage. In these areas, because of the low-lying terrain, the lift of water is not high, but the amount of water transported by farmland for irrigation or drainage is quite large. Therefore, axial flow pumps with “low head and large flow†performance characteristics should be used. In northern Guangdong Province, due to the small size of the field and the relatively high lifting capacity of the water, and the small flow rate, centrifugal pumps with high head and low flow should be selected. In view of the fact that some mountainous areas are steep and flowing and have abundant hydraulic resources, water-wheel pumps can be promoted to solve the irrigation in highland and highlands. In the hilly area near Guangzhou, the hills are not high, the land is not large, and the performance of the water pump is suitable. The flow rate is smaller than that of the axial-flow pump, and the flow rate is larger than that of the centrifugal pump; the head is smaller than the centrifugal pump, and A mixed-flow pump with a higher lift than an axial pump. In northern China, deep-water well pumps, shallow well pumps, and submersible pumps are widely used due to the fact that there is not much surface water and groundwater must be developed to irrigate farmland. Therefore, drainage and irrigation machinery must be selected according to local conditions.
The pumps are widely used and widely used, and they are used in various fields of the national economy. In terms of agriculture, pumps are mainly used for farmland irrigation and drainage, in case of drought and energy irrigation, and in the event of flooding, the ability to overcome floods and droughts is enhanced to ensure the high yield and stable production of crops and promote agricultural and sideline production.
Common types of agricultural pumps include centrifugal pumps, axial pumps, mixed-flow pumps, well pumps, submersible pumps, and water wheel pumps. In agricultural production, drainage and irrigation machinery with different properties should be selected according to the requirements of production conditions in different regions. In the plain areas, such as the Pearl River Delta of our province, there are plenty of riverbed water resources, and the fields are vast. Autumn and winter are arid, and summers are rainy. They often encounter heavy rain, heavy rain, and farmland, and require rapid drainage. In these areas, because of the low-lying terrain, the lift of water is not high, but the amount of water transported by farmland for irrigation or drainage is quite large. Therefore, axial flow pumps with “low head and large flow†performance characteristics should be used. In northern Guangdong Province, due to the small size of the field and the relatively high lifting capacity of the water, and the small flow rate, centrifugal pumps with high head and low flow should be selected. In view of the fact that some mountainous areas are steep and flowing and have abundant hydraulic resources, water-wheel pumps can be promoted to solve the irrigation in highland and highlands. In the hilly area near Guangzhou, the hills are not high, the land is not large, and the performance of the water pump is suitable. The flow rate is smaller than that of the axial-flow pump, and the flow rate is larger than that of the centrifugal pump; the head is smaller than the centrifugal pump, and A mixed-flow pump with a higher lift than an axial pump. In northern China, deep-water well pumps, shallow well pumps, and submersible pumps are widely used due to the fact that there is not much surface water and groundwater must be developed to irrigate farmland. Therefore, drainage and irrigation machinery must be selected according to local conditions.
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