Prevention and analysis on stalling of primary axial-flow fan for 1000MW ultra-supercritical power units

CHEN Wen1; ZENG Quan-zhi2

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Prevention and analysis on stalling of primary axial-flow fan for 1000MW ultra-supercritical power units

更新时间：2025-11-18

- Prevention and analysis on stalling of primary axial-flow fan for 1000MW ultra-supercritical power units
- Vol. 31, Issue 2, Pages: 30-33(2011)
- 作者机构：
  
  1. 湖南省电力公司科学研究院
  2. 湖南华电长沙发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.7
- Published：2011
- 稿件说明：
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[1]陈文,曾全芝.超超临界1000MW机组轴流一次风机失速分析及预防[J].湖南电力,2011,31(02):30-33.

CHEN Wen1, ZENG Quan-zhi2. Prevention and analysis on stalling of primary axial-flow fan for 1000MW ultra-supercritical power units[J]. 2011, 31(2): 30-33.
[1]陈文,曾全芝.超超临界1000MW机组轴流一次风机失速分析及预防[J].湖南电力,2011,31(02):30-33. DOI：

CHEN Wen1, ZENG Quan-zhi2. Prevention and analysis on stalling of primary axial-flow fan for 1000MW ultra-supercritical power units[J]. 2011, 31(2): 30-33. DOI：

摘要

某电厂1 000MW机组轴流式一次风机在并列运行时多次发生失速。针对在调试、运行中发生的一次风机失速问题

提出了相应的避免或减轻一次风机失速的调整方法和预防措施。发现分析风烟系统的结构特点及风机固有性能特性是风机失速的主要原因

在风机出口增加再循环回路

增大系统的通风量可使一次风机运行的可靠性得到提高。

Abstract

Stalling occurred many times during parallel operation for a primary axial-flow fan in given 1000MW unit.Stalling problem was analysed

meanwhile adjustment and prevention measurements were proposed to avoid or reduce stalling in the paper.Air-flue system design feature and fan inherent performance were the main reason.Adding a recirculating-air at the outlet to increase air ventilation quantity can improve the operation security of primary fan.

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