Study on Effect of Forward Warming and Backward Warming Start on Turbine Unit Lifetime

Guoqing LI; Chong CUI; Qing HE

doi:10.12096/j.2096-4528.pgt.18163

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Study on Effect of Forward Warming and Backward Warming Start on Turbine Unit Lifetime

Power Generation and Environmental Protection | 更新时间：2025-07-04

- Study on Effect of Forward Warming and Backward Warming Start on Turbine Unit Lifetime
- Power Generation Technology Vol. 40, Issue 6, Pages: 580-586(2019)
- 作者机构：
  
  1.华北电力大学能源动力与机械工程学院, 北京市昌平区 102206
  2.国电锅炉压力容器检验中心, 北京市昌平区 102209
- 作者简介：
- 基金信息：
  
  Fundamental Research Funds for the Central Universities(2017XS050)
- DOI：10.12096/j.2096-4528.pgt.18163
  CLC：
- Received：04 January 2019，
  
  Published：31 December 2019
- 稿件说明：
移动端阅览
Guoqing LI, Chong CUI, Qing HE. Study on Effect of Forward Warming and Backward Warming Start on Turbine Unit Lifetime[J]. Power Generation Technology, 2019, 40(6): 580-586.
DOI：

Guoqing LI, Chong CUI, Qing HE. Study on Effect of Forward Warming and Backward Warming Start on Turbine Unit Lifetime[J]. Power Generation Technology, 2019, 40(6): 580-586. DOI： 10.12096/j.2096-4528.pgt.18163.

摘要

汽轮机转子是机组最脆弱的设备，其使用寿命代表了整个机组的寿命，而在启动过程中转子所承受的等效应力最大，因此掌握不同启动方式下机组寿命的情况尤为重要。将某电厂汽轮机组作为仿真算例，对以冷态正暖和背压倒暖2种方式启动的机组进行三维建模、网格划分以及温度场和应力场的模拟分析，并进行寿命评估计算，得出2种启动方式下的机组寿命损耗，比较2种启动方式的优劣，为不同机组选择合适的启动方式提供合理的建议。

Abstract

The turbine rotor is one of the most fragile components of the power plant

whose life is equal to the life of the unit. The rotor is subjected to the maximum equivalent stress during the process of start-up or shutdown

so it is particularly important to grasp the life of the unit under different starting modes. A power plant was taken as an example to build three-dimensional model

mesh

and analyzed temperature field and stress field of the unit under the forward warming and backward warming ways

and the life of the unit was finally evaluated. The life loss of the unit under two starting modes was obtained and the advantages and disadvantages of the two starting modes were compared to provide reasonable suggestions for selecting suitable starting mode for different units.

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references

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