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近几年来,我县先后对上百座机电排灌站进行了圬工泵改轴流泵、卧式泵改立式泵、混流泵斜装落井及降低进水池底板等项措施的节能技术改造。为了进一步改善泵站进水流态,提高装置效率,去今两年分别在南湾、丰塘、后岗等站从事十多种投资很少、效益显著的导流锥模型试验对比。测试结果表明,立式泵站增设导流锥后,其综合
In recent years, our county has successively carried out energy-saving technological transformation on hundreds of electromechanical irrigation and drainage pumping stations in respect of such measures as reduction of axial-flow pumps for pumps, horizontal pumps for vertical pumps, ramp-down of mixed-flow pumps and reduction of intake floor. In order to further improve the inflow status of pumping stations and improve the efficiency of the plant, more than ten kinds of diversion cone model tests with little investment and significant benefits have been conducted in Nanwan, Fengtang and Hogang stations in the past two years respectively. Test results show that the vertical pumping station after the addition of diversion cone, its comprehensive