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一、概述湘江电站装有6台天津制造的 ZZ560-HL-250型转浆式水轮发电机组,机组自投产运行以来,漏油严重。如1983年3~#机一天最大漏油量达170公斤,全年总漏油50.7吨,从1981年至1985年共漏油161吨以上,机组因漏油被迫停机检修105天。为了解决这个问题,我们走访了一些水电站和制造厂家,从全国已投入运行的大中型电站的情况看,轴流转浆式水轮机漏油是普遍存在而又长期没有解决的问题。为了提高电站的运行可靠性和经济效益,我们对漏油问题进行了一些粗浅的研究分析。从1983年下半年至1986年3月间,共做了7次叶片密封装置试验,并4次拆卸转
I. Overview Xiangjiang Power Station is equipped with 6 sets of ZZ560-HL-250 turbo-jet turbine generator made in Tianjin. Since the unit was put into operation, the oil spill is serious. For example, in 1983, the maximum oil leakage of 3 # machine was 170 kg in one day and the total oil leakage was 50.7 tons in a year. From 1981 to 1985, a total of more than 161 tons of oil were spilled. The unit was shut down for 105 days due to oil leakage. In order to solve this problem, we visited a number of hydropower stations and manufacturers. From the perspective of the large and medium-sized hydropower plants in operation throughout the country, the leakage of axial-flow slurry turbine is a ubiquitous and unsolved problem for a long time. In order to improve the operational reliability and economic benefits of the power station, we conducted some superficial research and analysis on the oil spill problem. From the second half of 1983 to March 1986, a total of seven leaf seal tests were conducted and four demolition turns