INFLUENCE OF TWO DIFFERENT PROCESSES FOR SHUTTING DOWN STEAM TURBINE UPON ITS OPERATION AND ROTOR-LIFE EXPENDITURE

CHEN Feng; SHENG De-ren; CHEN Jian-hong; LI Wei; REN Hao-ren(Zhejiang Univesity

doi:10.19666/j.rlfd.2007.01.013

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INFLUENCE OF TWO DIFFERENT PROCESSES FOR SHUTTING DOWN STEAM TURBINE UPON ITS OPERATION AND ROTOR-LIFE EXPENDITURE

更新时间：2025-09-28

- INFLUENCE OF TWO DIFFERENT PROCESSES FOR SHUTTING DOWN STEAM TURBINE UPON ITS OPERATION AND ROTOR-LIFE EXPENDITURE
- Thermal Power Generation Issue 1, Pages: 44-46(2007)
- 作者机构：
  
  浙江大学
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2007.01.013
  CLC： TK267
- Published：2007
- 稿件说明：
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CHEN Feng, SHENG De-ren, CHEN Jian-hong, et al. INFLUENCE OF TWO DIFFERENT PROCESSES FOR SHUTTING DOWN STEAM TURBINE UPON ITS OPERATION AND ROTOR-LIFE EXPENDITURE[J]. Thermal power generation, 2007, (1): 44-46.
DOI：

CHEN Feng, SHENG De-ren, CHEN Jian-hong, et al. INFLUENCE OF TWO DIFFERENT PROCESSES FOR SHUTTING DOWN STEAM TURBINE UPON ITS OPERATION AND ROTOR-LIFE EXPENDITURE[J]. Thermal power generation, 2007, (1): 44-46. DOI： 10.19666/j.rlfd.2007.01.013.

摘要

通过某电厂4号汽轮机组滑参数停机和强迫停机不同过程的热力参数及其变化速率、转子热应力、应变和寿命损耗的比较

分析了两种停机工况对汽轮机转子寿命损耗的影响

指出强迫停机对转子寿命和锅炉的安全均影响较大

不提倡采用。分析结果对电厂合理运行、延长机组使用寿命及提高经济效益有重要作用。

Abstract

Through comparison of thermal parameters

and their rate of change

as well as the rotor's stress

strain

and life expenditure in two different processes for shutting down steam terbine unit no.4 in one power plant

namely sliding-parameter shut-down and forced shut-down

the influence of two shut-down processes upon rotor's life expenditure of the steam turbine has been analysed in detail

pointing out that the forced shut-down affects more greatly the rotor's life and the safety of boiler

and it is not advocated to adopt.The results of analysis have important significance for reasonable operation of power plant

lengthening service-life of the units

and enhancing the economic benefit.

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