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0 前言石洞口二电厂安装的超临界600MW机组是引进ABB公司的产品,从引进产品时带进的技术资料中了解到,该公司制造的超临界600MW机组中的大型轴承大部分采用改进型袋式轴承,只有较小尺寸的轴承才选用普通型袋式轴承,一般尽可能不用可倾瓦轴承。所谓袋式轴承就是在普通圆轴承两侧中分面处开两个油袋,袋深接近轴承间隙。而改进型装式轴承又在普通型袋式轴承的基础上,缩短两侧油袋弧长使轴承承载区夹角由普通型袋式轴承的60°增加到110°,并将双侧进油改为单侧进油。据国外有关文献报道:改进型袋式轴承除具有稳定性较好的特
0 Introduction Shidongkou II power plant installed supercritical 600MW unit is the introduction of ABB’s products, introduced from the introduction of the product when the technical information learned that the company’s super-critical 600MW unit in the majority of large bearings using improved bags Bearing, only the smaller size bearings are selected ordinary type bag bearings, generally not possible tilting pad bearings. The so-called bag bearing is in the ordinary round bearing on both sides of the face open two oil bags, bags close to bearing clearance. The improved mounted bearings and ordinary type bag bearings in the foundation, based on shortened arc length on both sides of the oil bag bearing bearing angle from the ordinary type of 60 ° bearings increased to 110 °, and both sides into the oil Change to unilateral into the oil. According to foreign literature reports: improved bag bearings in addition to better stability of the special