干式冷却系统汽轮机低压末级长叶片运行特点及分析

王仲博

doi:10.19666/j.rlfd.1992.05.003

English

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干式冷却系统汽轮机低压末级长叶片运行特点及分析

热力发电 1992年第5期页码：14-19

更新时间：2025-09-28

- 干式冷却系统汽轮机低压末级长叶片运行特点及分析
- OPERATION CHARACTERISTICS OF THE LAST BUCKET OF LP TURBINE WITH A DRY COOLING SYSTEM
- 作者机构：
  
  能源部西安热工研究所
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.1992.05.003
  中图分类号：
- 纸质出版：1992
- 稿件说明：
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王仲博. 干式冷却系统汽轮机低压末级长叶片运行特点及分析[J]. 热力发电, 1992,(5):14-19.

OPERATION CHARACTERISTICS OF THE LAST BUCKET OF LP TURBINE WITH A DRY COOLING SYSTEM[J]. Thermal Power Generation, 1992, (5): 14-19.
王仲博. 干式冷却系统汽轮机低压末级长叶片运行特点及分析[J]. 热力发电, 1992,(5):14-19. DOI： 10.19666/j.rlfd.1992.05.003.

OPERATION CHARACTERISTICS OF THE LAST BUCKET OF LP TURBINE WITH A DRY COOLING SYSTEM[J]. Thermal Power Generation, 1992, (5): 14-19. DOI： 10.19666/j.rlfd.1992.05.003.

摘要

干式冷却汽轮机背压受环境温度变化的影响较大

低压末级长叶片经常处于深度变工况下运行。本文分析了高背压小容积流量下低压末级长叶片运行特点及对机组安全经济性的影响

并提出保证机组安全运行的措施。

Abstract

As the exhaust pressure of the LP turbine with a dry-cooling system is dependent largely on the ambient temperature

the last bucket normally operates in a greatly varying condition. Presented in this paper is an analysis on the operating characteristics of the last LP bucket

which runs with a higher exhaust pressure and a small volume flow rate

and their influence on the reliability and efficiency of unit. Mean while

some measures are proposed for insuring the safety operation of unit.

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