STUDY ON LIFE LOSS OF IMPORTANT METAL COMPONENTS FOR PEAK-REGULATING UNITS AND OPTIMIZATION IN OPERATION THEREOF

CHEN Tong Fujian Provincial Electric Power Testing and Research Institute

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STUDY ON LIFE LOSS OF IMPORTANT METAL COMPONENTS FOR PEAK-REGULATING UNITS AND OPTIMIZATION IN OPERATION THEREOF

更新时间：2025-09-28

- STUDY ON LIFE LOSS OF IMPORTANT METAL COMPONENTS FOR PEAK-REGULATING UNITS AND OPTIMIZATION IN OPERATION THEREOF
- Thermal Power Generation Vol. 38, Issue 12, Pages: 102-105(2009)
- 作者机构：
  
  福建省电力试验研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227
- Published：2009
- 稿件说明：
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CHEN Tong Fujian Provincial Electric Power Testing and Research Institute. STUDY ON LIFE LOSS OF IMPORTANT METAL COMPONENTS FOR PEAK-REGULATING UNITS AND OPTIMIZATION IN OPERATION THEREOF[J]. Thermal power generation, 2009, 38(12): 102-105.
DOI：

CHEN Tong Fujian Provincial Electric Power Testing and Research Institute. STUDY ON LIFE LOSS OF IMPORTANT METAL COMPONENTS FOR PEAK-REGULATING UNITS AND OPTIMIZATION IN OPERATION THEREOF[J]. Thermal power generation, 2009, 38(12): 102-105. DOI：

摘要

某电厂125MW机组的调峰运行试验表明

锅炉汽包的疲劳寿命比转子的疲劳寿命要高

无需通过优化运行来延长寿命。对于高中压转子

可通过降低其在运行过程中的应力峰值来减少其寿命损耗。并提出了机组优化运行方案:对于起动工况

重点控制从转子定速到30%额定功率时段的负荷变化速度;对停机工况

重点控制零负荷后转子降速过程的温降率。

Abstract

The peak-regulating test of a 125 MW unit in one power plant shows that the fatigue life of a drum is higher than that of the rotor

it isn't necessary to lengthen the life through optimizationg in operation.For high medium pressure rotors

the life loss can be reduced through decreasing the peak value of stress produced in operation process.The proposed scheme of optimization in unit's operation is in the following:under condition of start-up

the key point is to control the load-varying speed during time section from constant speed to 30% of the rated power:under condition of shutdown

the key point is to control the temperature-decreasing rate in speed-reducing process after the load becomes zero.

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