The Analysis of Thermal Stress Control Technology for Ultra-Supercritical Steam Turbine

doi:10.11930/j.issn.1004-9649.2017.01.097.04

Abstract

Abstract: The technology of thermal stress control had been introduced into controlling the ultra-supercritical steam turbine by Shanghai Turbine Company(STC), which makes its can automatically optimizing between quickness and reducing the loss of life of turbines in the process of start-up and variable operation conditions. In this paper, the principle, implementation and monitoring methods were introduced in detail of the thermal stress control for the ultra-supercritical steam turbine, and some problems which had been posed due to the thermal stress limit were described in the process of debugging and commissioning in this type unit, which have certain guiding significance for debugging, operating and maintenance for this type turbines.

Key words: ultra-supercritical steam turbine, estimations for thermal stress, thermal stress control, temperature margin

CLC Number:

TK323

WANG Zhijie, CHEN Houtao, ZHU Xiaoxing, FU Qiang. The Analysis of Thermal Stress Control Technology for Ultra-Supercritical Steam Turbine[J]. Electric Power, 2017, 50(1): 97-100.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2017.01.097.04

https://www.electricpower.com.cn/EN/Y2017/V50/I1/97

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