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随着人们对小水电兴趣的日益增加,越来越多地用离心泵作水轮机使用。由于泵的大量生产,而且比同类型特制的水轮机成本低,所以它可以得到广泛的使用。径流式或轴流式离心泵可以逆向运行,作水轮机使用。泵的这种两重性运行的功能是由涡轮理论所决定的,因为这种水轮机与作离心泵运行时相类似,因此,这种水轮机的特性可以从一种运行状态的性能判断其另一种运行状态下的性能,并且可以从现有的设计研究新的水轮机设计。多年来,作者的公司进行了许多关于泵作为水轮机使用的试验,在试验中观察到下面的情况: (1)机械运行时平稳无躁声; (2)作为水轮机使用时的峰效率值基本上与泵运行的峰值相同; (3)作水轮机使用在最高效率点的水头
As people’s interest in small hydropower is increasing, more and more centrifugal pumps are used as water turbines. It is widely used due to the mass production of the pump and lower cost than a specially designed turbine. Radial or axial centrifugal pumps can be run in reverse for turbine applications. The function of this dual operation of the pump is dictated by the theory of the turbine as it is similar to the operation of a centrifugal pump and therefore the characteristics of such a turbine can be judged from the behavior of one operating state for another State of the performance, and from the existing design of new turbine design. Over the years, the author’s company has carried out many tests on the use of pumps as turbines. The following observations were observed during the tests: (1) steady and noisy during mechanical operation; (2) peak efficiency values as a turbine The same peak pump operation; (3) for the turbine head at the highest efficiency point of use