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南通地区位于长江下游,东临黄海,南滨长江,耕地约680万亩。五十年代开始发展机电排灌,至今已有机电排灌动力41.6万马力,其中固定泵站动力17.9万马力。为了有利于开展节能、降本为中心的技术改造,一九八二年农灌期间,我们对水泵口径8时以上的固定泵站进行了一次技术性能普查。在普查的基础上,对具有代表性的74处电力灌溉站进行了装置效率的测定。普查测试的主要成果见表1至表4。
Nantong region is located in the lower reaches of the Yangtze River, east of the Yellow Sea, Nanbin Yangtze River, about 6800000 acres of arable land. In the 1950s, electromechanical irrigation and drainage began to be developed. Up till now, 416,000 horsepower has been produced by electromechanical irrigation and drainage systems, of which 179,000 horsepower has been fixed at pumping stations. In order to facilitate energy-saving and cost-effective technological transformation, during the period of agricultural irrigation in 1982, we carried out a general survey of technical performance of fixed pump stations with a pump diameter of over 8 o’clock. Based on the census, device efficiency was measured at a representative 74 power irrigation stations. The main results of the census test are shown in Table 1 to Table 4.