Study of the influence of steam temperature of shaft seal on the life of 600MW supercritical steam turbine rotor

Abstract

Abstract:

In the process of large thermal power unit to participate in grid peak regulating, variation in turbine shaft sealing system parameters causes the rotor at shaft seal to bear alternating stress effect, and finally causes the life loss of rotor. Taking the appearing problems in the commissioning of a certain Huadian power plant as a basis, this paper introduces the influence of steam temperature variation of shaft seal on the life of rotor when current power plant system is in variable load operation. After that, it proposed some corresponding improvement measures in aspects of operation and technical management, which has a certain reference significance for the life management of similar units.

Key words:

peak regulating, rotor, steam temperature of shaft seal, life loss

ZHANG Gaohui.

Study of the influence of steam temperature of shaft seal on the life of 600MW supercritical steam turbine rotor

[J]. Huadian Technology, 2017, 39(3): 33-35.

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Study of the influence of steam temperature of shaft seal on the life of 600MW supercritical steam turbine rotor

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