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中小型水轮机
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In the past,type Selection of middle and small sized turbines in china always laid particular stresson universality and low price,but not sufficienlly considered the power generation benefit.Runners withbackward perfermance were used,even a curtain type of turbine was applied indescriminately. Therefore,turbines operated beyond the optimun operating condition in longterm,causing considerable economic loss topower station,In recent years,because of the increase of scientific research results and the establishment...

In the past,type Selection of middle and small sized turbines in china always laid particular stresson universality and low price,but not sufficienlly considered the power generation benefit.Runners withbackward perfermance were used,even a curtain type of turbine was applied indescriminately. Therefore,turbines operated beyond the optimun operating condition in longterm,causing considerable economic loss topower station,In recent years,because of the increase of scientific research results and the establishment ofmiddle and small sized turbines of new series,type of middle and small sized turbines can be reasonably selected. Reasonable selection of type of middle and small sized turbines in china and abroad by orient ElectricFactory and the resulting economic benifit are described in the paper.

本文分析了我国过去中小型水轮机选型偏重于通用性和低价,未充分考虑发电效益,使用性能落后的转轮,甚至不合理地套用某一机型,致使水轮机长期偏离最优工况区运行,给电站造成了较大的经济损失。近年来,随着水轮机科研成果的增多,新的中小型水轮机系列型谱的建立,为中小型水轮饥选型创造了条件。文章列举了东方电机厂在国内外中小型水轮机中的合理选型以及由此带来的经济效益。

According to the present applying situation, there exist some problems of water ed from top-cover of hydraulic turbines for use as technical water supply of units. Therefore the feasibility, economic benefits and matters needing attention of that the water draft from top-cover of medium-small-size hydraulic turbines for use as cooling water, water, discussed from follow- ing aspects: sealing rings gaps, the water quantity and pressure of water draft from top-cover, the layout of water draft tubes from top-cover...

According to the present applying situation, there exist some problems of water ed from top-cover of hydraulic turbines for use as technical water supply of units. Therefore the feasibility, economic benefits and matters needing attention of that the water draft from top-cover of medium-small-size hydraulic turbines for use as cooling water, water, discussed from follow- ing aspects: sealing rings gaps, the water quantity and pressure of water draft from top-cover, the layout of water draft tubes from top-cover and stabilization basin, operation mode and matters needing attention in the water draft from top-cover, etc.

根据已有的使用情况,从水轮机顶盖取水作为机组技术供水水源存在着一些问题,为此,从上漏环间隙及顶盖取水的水量和水压,顶盖取水管和稳压池的布置,顶盖取水的运行方式及注意事项等方面,探讨了中小型水轮机从顶盖取冷却水的可行性、经济效益及注意事项

Three new construction techniques for medium and small turbines,integrated installation,water-free cooling,and oil-free lubrication,are described together with their economic and environment protection benefits.

介绍了适用于中小型水轮机上的集成安装式、无水冷却和无油操作及润滑等方面的结构新技术,并说明了这些技术的应用将会带来良好的经济效益和环保效益。

 
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