A vibration control method for rotating machinery in a thermal power plant

Abstract

The present invention relates to a method for controlling the vibration of a rotating machine in a thermal power plant, comprising the following steps: step 1, based on the root mean square reference value of the vibration speed of the rotating machine, the corresponding vibration control limit is obtained according to the power, support mode and type of the rotating machine; The vibration control limit value includes a vibration qualified value A, the first alarm value B, the second alarm value C and the shutdown value D; the rotating machine includes a pump, a fan, and a motor; step 2, according to the obtained vibration control limit value, the Rotating machinery for vibration classification control. According to the invention, the rotating machinery of the thermal power plant is classified and controlled according to power, support mode and type. This method can uniformly control the vibration of the rotating machinery in the whole plant, and manage the vibration of the unit in a full cycle, which is more effective than the traditional management method.

Description

Technical field [0001] The present invention belongs to the field of thermal power generation technology, in particular to a thermal power plant rotating machinery vibration control method. Background [0002] There are many rotating machinery required for the operation of thermal power plants, and any problem with the vibration of rotating machinery will lead to the unplanned shutdown of the unit, and compared with the turbine generator set, the operating environment of these rotating equipment is harsh and under-valued. At present, there is a lack of unified and systematic management of the vibration of key rotating machinery in thermal power plants, and the deterioration of vibration occurs frequently, resulting in a large number of rotating machinery being unplanned shutdown or damage due to vibration problems, which seriously affects the safe and stable operation of the unit. Contents of the Invention [0003] Object of the present invention is to provide a thermal power pl...

AI Technical Summary

Problems solved by technology

[0002] There are a lot of rotating machinery required for the operation of thermal power plants, and any vibration problem of any rotating machinery will lead to unplanned outage of the unit. Compared with the steam turbine generator set, the operating environment of these rotating equipment is harsh and less attention has been paid to it

At present, there is a lack of unified and systematic management of the vibration of key rotating machinery in thermal power plants, and frequent occurrence of vibration deterioration has resulted in unplanned outage or damage of a large number of rotating machinery due to vibration problems, seriously affecting the safe and stable operation of the unit