Thermal power plant rotating machine vibration control method

Abstract

The invention relates to a thermal power plant rotating machine vibration control method, which comprises the following steps of 1, based on a rotating machine vibration speed root-mean-square reference value, obtaining a corresponding vibration control limit value according to the power, the supporting mode and the type of a rotating machine, wherein the vibration control limit value comprises a vibration qualified value A, a first alarm value B, a second alarm value C and a shutdown value D, and the rotating machine comprises a pump, a fan and a motor, and 2, according to the obtained vibration control limit value, carrying out vibration hierarchical control on the rotating machine. Classified control is carried out according to the power, the supporting mode and the type of the rotating machine of the thermal power plant, unified control can be carried out on the vibration condition of the rotating machine of the whole plant, full-period management is carried out on the vibration of the unit, and the method is more effective than a traditional management method.

Description

technical field [0001] The invention belongs to the technical field of thermal power generation, and in particular relates to a method for controlling the vibration of a rotating machine in a thermal power plant. Background technique [0002] There are a lot of rotating machines required for the operation of thermal power plants. Any vibration problem of any rotating machine will lead to unplanned outage of the unit. Compared with the steam turbine generator set, the operating environment of these rotating machines is harsh and less attention has been paid to them. 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 shutdown or damage of a large number of rotating machinery due to vibration problems, seriously affecting the safe and stable operation of the unit. Contents of the invention [0003] The purpose of the pr...

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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