Research on diagnostic methods The expert system based on artificial intelligence and artificial neural network are currently two methods for fault diagnosis of plum blossom coupling units in China, and there are many differences between the two. Abnormal vibration of steam turbine During the operation of the steam turbine, when there are phenomena such as friction vibration, rotor thermal deformation, air flow excitation, etc.

The inspection of the internal conditions of the condenser revealed that there is a relationship between the decrease in vacuum and the leakage of the low-pressure cylinder joint surface. For example, in March 2011, the condenser of Unit 2 of Nanhai Power Plant in Foshan, Guangdong had a fault with low vacuum.

When the vacuum of the condenser drops, problems such as the continuous rise of exhaust temperature and unit vibration will occur, which will affect the normal operation of the steam turbine, and its influence will be great in a high temperature environment.

No matter what Wholesale CV Joint Suppliers the instrument is, no matter how many advantages the instrument itself has, it is inevitable that large and small failures will occur during long-term work and use, and long-term failures are bound to cause great damage to the components of the instrument. run. Today, we will tell you about the common faults of the auxiliary equipment of the drum gear coupling steam turbine. 

When the rotor is thermally deformed, it will cause the double-frequency amplitude to continue to expand, and when the standby group is started up at a constant speed in cold state, it will cause abnormal vibration of the unit; when there is airflow excitation, there will be a lot of vibrations. 

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