一、概况黄河三门峡水电站现装有五台ZZ_(010)-LJ-600型轴流转桨式水轮机,单机容量5万千瓦,设计水头30米,系多泥沙水电站,水轮机叶片密封型式采用“λ”型,其结构型式如图1所示。这种密封安装以后,经过一段时间(四个月左右)运行后,即发生漏油或进水,经测定,最多每天漏油可达2.7吨,仅1978年就有120～140吨国产30~#透平油白白漏掉,造成 I. Overview The Sanmenxia Hydropower Station now houses five ZZ_ (010) -LJ-600 axial-flow paddle-type turbines with a single capacity of 50,000 kilowatts and a design head of 30 meters. The multi-purpose hydropower station and turbine blades are sealed with “ λ ”type, the structure shown in Figure 1. After the seal installation, after a period of time (four months or so) after the operation, that is, oil leakage or water leakage, measured up to a daily oil leakage of up to 2.7 tons, in 1978 alone 120 to 140 tons of domestic 30 ~ # Turbocharged white oil missing, causing