汽轮机调节级特性曲线快速算法改进

李慧君; 赵翔

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汽轮机调节级特性曲线快速算法改进

热力发电 2016年45卷第10期页码：94-98

发电技术论坛 | 更新时间：2025-09-28

- 汽轮机调节级特性曲线快速算法改进
- Improvement on fast algorithm of steam turbine governing stage's characteristic curve
- 作者机构：
  
  华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： TK261
- 纸质出版：2016
- 稿件说明：
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李慧君, 赵翔. 汽轮机调节级特性曲线快速算法改进[J]. 热力发电, 2016,45(10):94-98.

LI Huijun, ZHAO Xiang. Improvement on fast algorithm of steam turbine governing stage's characteristic curve[J]. Thermal Power Generation, 2016, 45(10): 94-98.
李慧君, 赵翔. 汽轮机调节级特性曲线快速算法改进[J]. 热力发电, 2016,45(10):94-98. DOI：

LI Huijun, ZHAO Xiang. Improvement on fast algorithm of steam turbine governing stage's characteristic curve[J]. Thermal Power Generation, 2016, 45(10): 94-98. DOI：

摘要

针对传统的汽轮机调节级特性曲线快速算法忽略次要因素

简化计算公式

误差相对较大的问题

引入了喷嘴汽流偏转角和动叶速度系数的计算公式对调节级特性曲线计算方法进行改进;以某200MW级机组汽轮机为例

采用本文算法建立计算调节级特性曲线的数学模型

在设计工况下进行计算

并与传统算法的计算结果进行比较

结果表明

本文算法的计算精度更高。

Abstract

The conventional fast algorithm of the steam turbine governing stage's characteristic curve neglects the secondary factor and simplifies the calculation formula

but large relative error still exists.To solve this problem

the calculation formula of the steam flow deflection angle of the nozzle and the velocity coefficient of the moving blade were introduced to improve the calculation method of governing stage characteristic curve.Moreover

by taking a 200 MW unit steam turbine as an example

the calculation algorithm this paper proposed was employed to establish the mathematical model for calculating the governing stage characteristic curve.The calculation was carried out under the design conditions

and the results were compared with that of the conventional calculation method.The results indicate this improved algorithm has higher precision.

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