摘要
针对某发电厂300 MW汽轮机组出现真空严密性差的问题进行深入分析研究,对运行中存在的问题进行适当改造及优化调整,使机组真空严密性提高,减少了漏入真空系统的空气,降低了机组排汽温度、煤耗率和厂用电率。同时,减少了低压设备氧腐蚀并提高了运行安全性,为同类机组进行真空严密性优化调整提供参考和借鉴。
In order to solve the problem associated with vacuum tightness in a 300 MW steam turbine unit of a power plant,the causes of compromised vacuum tightness is analyzed,and the existing problems in operation are modified and optimized to improve the vacuum tightness of the unit.The air leakage into the vacuum system is reduced,and the exhaust steam temperature,coal consumption rate and power consumption rate are reduced.Therefore,the oxygen corrosion is reduced and the operation safety is improved for the low-pressure equipment.This work provides reference for the optimization and adjustment of vacuum tightness of similar units.
引文
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