热力系统阀门内漏直接影响火电厂的安全生产、经济运行及社会形象。认真摸索判定阀门内漏的方法,高度重视机组启动前的管道冲洗排污,定期检查、清洗热力系统滤网,精细整定电动阀门全关行程,机组启动过程中禁止回收不合格的凝结水,严把阀门检修质量验收关,规范串联阀门操作程序,定期测量阀门温度,适时适度压关内漏阀门,是防止阀门内漏的有效措施。 Thermal system valve leakage directly affect the thermal power plant safety, economic operation and social image. Seriously explore ways to determine valve leakage, attach great importance to the unit before the start of the pipeline flushing sewage, regular inspection, cleaning the heat system filter, fine tuning of the entire electric valve trip, the unit starts the process of prohibiting the recycling of unqualified condensate, strict Valve inspection quality and acceptance clearance, standard series valve operation procedures, regular measurement of valve temperature, timely and appropriate pressure off the internal leakage valve is to prevent leakage of the valve effective measures.