Application on finite element numerical modeling method in optimization of turbine start-up characteristics

HU Jue1; ZHONG Ting1; LIU Yong-hui2

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Application on finite element numerical modeling method in optimization of turbine start-up characteristics

更新时间：2025-11-18

- Application on finite element numerical modeling method in optimization of turbine start-up characteristics
- Vol. 30, Issue 6, Pages: 31-33(2010)
- 作者机构：
  
  1. 巴陵石化分公司
  2. 湖南省电力公司试验研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK261
- Published：2010
- 稿件说明：
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[1]胡珏,钟挺,刘永辉.有限元数值建模技术在汽轮机启动特性优化中的应用[J].湖南电力,2010,30(06):31-33.

HU Jue1, ZHONG Ting1, LIU Yong-hui2. Application on finite element numerical modeling method in optimization of turbine start-up characteristics[J]. 2010, 30(6): 31-33.
[1]胡珏,钟挺,刘永辉.有限元数值建模技术在汽轮机启动特性优化中的应用[J].湖南电力,2010,30(06):31-33. DOI：

HU Jue1, ZHONG Ting1, LIU Yong-hui2. Application on finite element numerical modeling method in optimization of turbine start-up characteristics[J]. 2010, 30(6): 31-33. DOI：

摘要

运用三维有限元数值建模和仿真计算方法

研究25MW抽凝汽轮机温度、应力及热膨胀分布

查明汽缸膨胀不畅是机组启动特性差的主要原因

通过实施3段抽汽管道增设大拉杆波纹补偿器等技术改造

消除了启动过程振动大的问题

优化了机组启动特性

机组启动时间缩短6 h。

Abstract

By three-dimensional finite element numerical modeling and simulation method

the paper studies the temperature

stress and thermal expansion of the distribution of 25MW extracting and condensing steam turbine.The main reason for poor start-up characteristics is that cylinder can not expand smoothly.Through the implementation of 3rd extraction pipeline such as enllarging rod corrugated compensators

the vibration problem during start-up period was eliminated and start-up characteristics of the unit was optimized

and start time the unit was shortened for 6 hours.

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