论文部分内容阅读
介绍当前在运机组轴封系统存在的一些缺陷和问题,提出一种改善其运行品质的方案,以一台哈汽200MW机组为例,依照此方案将低压轴封进行单独控制,以祢补原系统设计上不足,从而解决原机组存在的高压轴封漏汽或低压轴封空气内漏,凝汽器真空低,特别是在温、热态启动时,机组胀差难以控制等问题,在实际应用中取得成效。
This paper introduces some defects and problems existing in the shaft sealing system of the current unit and puts forward a plan to improve its running quality. Take a Harbin steam turbine unit as an example, according to this scheme, the low pressure shaft seal is controlled separately, System design deficiencies in order to solve the original unit existence of high-pressure shaft seal leakage or low-pressure shaft seal air leakage, condenser vacuum is low, especially in warm and hot start, the unit is difficult to control the expansion of the problem, in practice Achieve results in the application.