ANALYSIS OF THERMAL STRESS FOR ROTOR OF 50 MW STEAM TURBINE

doi:10.19666/j.rlfd.2006.08.018

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ANALYSIS OF THERMAL STRESS FOR ROTOR OF 50 MW STEAM TURBINE

更新时间：2025-09-28

- ANALYSIS OF THERMAL STRESS FOR ROTOR OF 50 MW STEAM TURBINE
- Thermal Power Generation Issue 8, Pages: 52-55(2006)
- 作者机构：
  
  1. 梅县发电厂
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2006.08.018
  CLC： TM621.3
- Published：2006
- 稿件说明：
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ANALYSIS OF THERMAL STRESS FOR ROTOR OF 50 MW STEAM TURBINE[J]. Thermal power generation, 2006, (8): 52-55.
DOI：

ANALYSIS OF THERMAL STRESS FOR ROTOR OF 50 MW STEAM TURBINE[J]. Thermal power generation, 2006, (8): 52-55. DOI： 10.19666/j.rlfd.2006.08.018.

摘要

对某电厂50MW汽轮机转子裂纹车削前后不同运行条件下的温度场、热应力场和机械应力进行了有限元分析计算

计算分析结果表明裂纹位于转子最大应力发生处;裂纹部位的弹性槽车削后

转子最大应力有所降低;弹性槽尺寸的变化对应力集中系数有很大的影响。计算结果对转子裂纹车削加工方案以及安全性评定提供了技术数据。

Abstract

The temperature field

thermal stress field

and mechanical stress under different operating conditions before and after crack[CD*2-ing of the rotor for 50 MW steam turbine in one power plant have been calculated through the finite element analysis. The results of calculation show that the crack to be situated at location of max. stress occurred on the rotor. After turning

the elastic slot at the crack position makes the max. stress on the rotor to be lowered

the size of elastic slot affects greatly the factor of stress concentration. The results of calculation provide technical data for rotor’s crack-turning fabricating scheme and for safety assessment.

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Related Author

ZHANG Weijun

ZHANG Xueyan

HE Guoan

XU Kaicheng

LI Yong

SHI Zhigang

CAI Hui

LAI Xinhua

Related Institution

Xi'an TPRI Energy Conservation Technology Co.,Ltd.

School of Energy and Power Engineering, Northeast Dianli University

Shenzhen Guangqian Electric Power Co.,Ltd.

Xi'an Thermal Power Research Institute Co.,Ltd.

Yunfu Power Plant Guangdong Yunfu

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