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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Then sometimes the customer feedback that the oil can't be added is really a problem with the cross shaft assembly? Before explaining this problem, let us first check and deal with a number of difficult points: Is the oil filling hole blocked? If the oil pipe joint is smashed into the hexagonal shape or the injector is rusted, it will cause

The fuel pipe is blocked, and the fuel pipe joint should be removed and replaced immediately. In addition, full consideration of the original factory pre-filled oil, the usual vegetable grease and other conditions, the specific oil filling time is about 3-5s. When there is a load, the thickener releases the oil, thereby having a lubricating effect. When you encounter the problem of refueling again, don’t panic and judge that the structure cannot be refueled, but use violent behavior to refuel.

Because the new cross shaft assembly generally uses the four-point lubrication method, during the assembly period of the cross shaft assembly, the Weicheng universal joint shaft will be pre-lubricated one by one in the rolling bearing of the four directions Wholesale Interpart Axle to ensure that the universal joint shaft is delivered. Why under some conditions, workers will make a misjudgment that the oil cannot be pumped in? For example, the oil pipeline volume of the general pneumatic high pressure oil injection machine is about 0. Among them, the amount of oil injection is more effective within a certain range, so how to quantitatively analyze this definition?

Taking the universal cross bag of SWC350BH model specification as an example, after the cross bag is transferred to the condition of no oil filling, the reasonable internal space inside the single roller bearing is about 97000Mm^3. The working pressure of the manual grease gun air inlet is not enough. Wrong judgment of actual operation staff. Assemble, the rolling bearing inner cavity is filled with oil to convert to about 6. It relies on the efficiency of the pump to cause high pressure on the fuel and uses high pressure to carry out oil injection

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