ANALYSIS OF BACKWARD PREROTATION OPERATION FOR INLET AIR FLOW OF CENTRIFUGAL FANS

LI Bin

doi:10.19666/j.rlfd.2006.05.006

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ANALYSIS OF BACKWARD PREROTATION OPERATION FOR INLET AIR FLOW OF CENTRIFUGAL FANS

Thermal Power Generation Issue 5, Pages: 19-21(2006)

更新时间：2025-09-28

- ANALYSIS OF BACKWARD PREROTATION OPERATION FOR INLET AIR FLOW OF CENTRIFUGAL FANS
- 作者机构：
  
  华能南京电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2006.05.006
  CLC： TK223.26
- Published：2006
- 稿件说明：
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LI Bin. ANALYSIS OF BACKWARD PREROTATION OPERATION FOR INLET AIR FLOW OF CENTRIFUGAL FANS[J]. Thermal Power Generation, 2006, (5): 19-21.
DOI：

LI Bin. ANALYSIS OF BACKWARD PREROTATION OPERATION FOR INLET AIR FLOW OF CENTRIFUGAL FANS[J]. Thermal Power Generation, 2006, (5): 19-21. DOI： 10.19666/j.rlfd.2006.05.006.

摘要

通过对离心式送风机不同出力下运行参数异常的分析

确认其原因为入口导叶反旋

据此对入口导叶进行了检修调整

消除了故障。同时

对相同导叶开度下

入口气流反预旋及正预旋时的风机电流进行了比较

并利用速度三角形及欧拉方程式

对造成此现象的原因进行了简要分析。

Abstract

Through analysis of abnormal operation parameters under different output capacity of centrifugal fans

it has been believed that the cause to be backward rotation of the inlet guide blades.Based on this

the inlet guide blades have been repaired and adjusted

and the fault being eliminated.At the same time

comparison of the fans' electric current when the inlet air flow to be backward prerotation and forward prerotation has been carried out under same open degree

and causes resulting in said phenomenon have been briefly analysed by using velocity triangle and Oular equation.

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Related Author

ZHAO Yonggang

SUN Baomin

YANG Dinghua

Related Institution

College of Energy, Power and Mechanical Engineering, North China Electric Power University

Shenhua Shendong Electric Power Co., Ltd

Department of Thermal Engineering, Tsinghua University

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