The amount of precipitation in southern China large rivers and lakes, is rich in water resources, annual precipitation is about 1000mm, but precipitation submersible axial flow pump is higher in summer, winter and spring less. Southern crops to rice, water, paddy water demand, with submersible axial flow pump the water from the river pumping mentioned irrigation channel and flow field. In the northern region of Huaihe annual precipitation is significantly reduced, the less the more precipitation to the north, only a fraction of the south, and concentrated in the summer. The northern winter severe drought, lack of water, from the south of the Yangtze River to North Water diversion.
The eastern route of South to North Water Diversion Project from the lower reaches of the Yangtze River water diversion, lying in the lower reaches of the Yangtze River low, high terrain north, only the use of pump pumping to take water to the north. In Jiangsu Province as an example: after 30 years of unremitting efforts, Jiangsu Province basically completed the river water diversion project, through large and medium-sized water pump station flow pumping river north send, ensure the Huaibei water for agricultural production, expanding irrigation area and rice planting area, grain yield large submersible axial flow pump amplitude increase, Subei into the new barn, which submersible axial flow pump irrigation and drainage project work.
Submersible axial flow pump in low-lying areas also undertake regional drainage task. This includes not only the low-lying farmland of the plume blocking water, but also including the drainage of low-lying areas of the township. In river, lake, river network area, lower in many parts of the ground elevation, water drainage, easily flooded, in case of the flood arrives, flood threat. In the fight against floods, disaster prevention and mitigation, the pump has a special important role.
