热工联产汽轮机主汽阀挂闸装置故障分析与处理

Fault analysis and treatment of the main steam valve latching device of the steam turbine of the thermal cogeneration

介绍了云南云天化红磷化工有限公司硫酸装置B0.7-1.0/0.5型热工联产汽轮发电机组的汽轮机调节系统,分析了汽轮机主汽阀挂闸装置自动脱扣的故障原因,提出了在楔形键与套筒的键槽之间增加铜皮的处理方法。经过检修,解决了汽轮机主汽阀挂闸装置存在的问题,保证了热工联产汽轮发电机长周期稳定运行。

The turbine regulating system of B0.7-1.0/0.5 combined thermal power generation unit of Yunnan Yuntianhua Red Phosphorus Chemical Co.,Ltd.is introduced.he fault causes of the automatic trip of the main steam valve latching device of the turbine is analyzed,and the treatment method of adding copper skin between the wedge key and the key slot of the sleeve is put forward.After maintenance,the existing problems of the main steam valve latching device of the steam turbine are solved,and the long-term stable operation of the thermal cogeneration steam turbine generator is ensured.