大中型泵站主电机及传动型式选择

我国已建大中型泵站在2004年就达到5 500余座,规模已居世界第一。但已建泵站存在主电机型式及传动方式单一的问题。近年来新型电机与新型传动方式不断涌现,并已在其他行业得到成功应用,有必要对新型电机与新型传动方式应用于泵站的可行性进行研究。通过分析国内外高速电机配套减速机构传动方式的应用实例,比较了该传动方式与直联传动方式对机组总重量的影响,探讨了交流励磁电机和内馈电机在大中型泵站的应用前景和可行性,两者分别在风力发电、普通电厂和自来水厂中获得大量应用。最后提出应在大中型泵站建设与改造中积极推广应用新型电机和新型传动方式,达到节约投资、节约能源和提高泵站技术的目的。

Selection of Main Motor and Transmission Type for Large- and Medium-sized Pumping Stations

More than 5500 pumping stations have been constructed in China until 2004; however, the constructed pumping stations have some shortcomings such that the type of main motors and the mode of transmission are quite unitary. In recent years, new type of motors and new mode of transmissions appear and they have been successfully applied in other industries. Consequently, it is necessary to investigate the feasibility of new type of motors and new mode of transmissions applied in pumping stations. In this paper, the application examples of high speed motor supporting reduction gear transmission mode are introduced, the effects of the above mode and direct transmission mode on the total weight of unit are compared, and the application prospect and feasibility of AC-excited motors and inner-feedback motors in the large- and medium-sized pumping stations are discussed. The AC-excited motor has been successfully applied in wind power, whereas the inner-feedback motor has been successfully applied in power plants and waterworks... Finally, this paper proposes that application of the new type of motors and new mode of transmissions should be promoted in the construction and transformation of large- and medium-sized pumping stations, which can achieve the purposes of investment saving, energy conservation, and improvement of pumping station technology.