Device for on-line monitoring and control of equivalent stress of rotor retaining ring of turbo-generator and method therefor

Abstract

The invention provides a device for on-line monitoring and control of the equivalent stress of a rotor retaining ring of a turbo-generator. The invention is characterized in that the device comprises an equivalent stress compute server; and the equivalent stress compute server is connected with a decentralized control device of the turbo-generator through a factory level monitoring information device. The invention also provides a method for on-line monitoring and control of the equivalent stress of the rotor retaining ring of the turbo-generator; the method is characterized in that the computer software of the equivalent stress of the rotor retaining ring of the turbo-generator is programmed in the C language, operated on the remained service life compute server and applied to the on-line monitoring and control of the equivalent stress of the rotor retaining ring of the turbo-generator. The invention has the advantage of realizing the on-line compute and control of the equivalent stress of the rotor retaining ring of the turbo-generator.

Description

technical field [0001] The invention relates to an on-line monitoring and control device and method for the equivalent stress of a retaining ring of a turbogenerator rotor, and belongs to the technical field of the turbogenerator. Background technique [0002] During the operation of the turbo-generator, the rotor guard ring is the most stress-bearing part of the turbo-generator. In addition to bearing the centrifugal force generated by the rotation of the rotor guard ring itself, it also bears the centrifugal force generated by the end winding of the turbo-generator rotor. , the interference fit stress between the retaining ring and the rotor body, the interference fit stress between the retaining ring and the center ring, and the thermal stress caused by the uneven temperature distribution of the retaining ring along the radial direction, etc. The rotor retaining ring affects the safe operation of the turbogenerator The key components. During the start-up, shutdown and lo...

AI Technical Summary

Problems solved by technology

The change of the heat of the turbine generator rotor end winding will cause the temperature of the rotor guard ring to be uneven along the radial direction and generate large thermal stress, which will cause the equivalent stress of the turbo generator guard ring to change. If it is not properly controlled, it will shorten Service life of turbine generator rotor guard ring

The monitoring and control of the equivalent stress of the turbine generator rotor retaining ring cannot be realized in the prior art

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