论文部分内容阅读
我厂压榨用280马力单缸膨胀卧式蒸汽机,原设计活塞杆使用橡胶石棉盘更密封,故障多,维修难,维护费用高,经1974年改为弹簧三瓣铜密封环之后,榨季生产期间完全不需检修。但由于密封部件表面光洁度低,加上其他原因,密封不甚严密,尤以底端为甚(靠十字头),浪费蒸汽,降低出力,污染环境。1978年在弹簧三瓣铜密封环的基础上试作进一步改进,经1978/79年榨季生产考验表明,使用效果良好,彻底杜绝了漏汽,无故障。此法试用于活
My factory squeeze with 280 horsepower single cylinder horizontal steam engine, the original design of the piston rod rubber asbestos more sealed, more trouble, difficult to maintain, high maintenance costs, changed to 1974 spring three copper seal ring, the production of the crop During the entire do not need overhaul. However, due to the low surface finish of sealing parts, plus other reasons, the sealing is not very tight, especially at the bottom (by the cross head), which is a waste of steam, reducing output and polluting the environment. In 1978 on the basis of the spring three-valve copper seal for further improvement, the 1978/79 production test showed that the crop, the use of good results, completely eliminate the leakage, no fault. This method is tried for living