Type selection of secondary air fan for 300MW circulating fluidized bed boilers

ZHAO Yonggang; SUN Baomin; YANG Dinghua

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Type selection of secondary air fan for 300MW circulating fluidized bed boilers

Thermal Power Generation Vol. 43, Issue 2, Pages: 70-74(2014)

更新时间：2025-09-28

- Type selection of secondary air fan for 300MW circulating fluidized bed boilers
- 作者机构：
  
  1. 华北电力大学能源动力与机械工程学院
  2. 神华神东电力有限责任公司
  3. 清华大学热能工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.6
- Published：2014
- 稿件说明：
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ZHAO Yonggang, SUN Baomin, YANG Dinghua. Type selection of secondary air fan for 300MW circulating fluidized bed boilers[J]. Thermal Power Generation, 2014, 43(2): 70-74.
DOI：

ZHAO Yonggang, SUN Baomin, YANG Dinghua. Type selection of secondary air fan for 300MW circulating fluidized bed boilers[J]. Thermal Power Generation, 2014, 43(2): 70-74. DOI：

摘要

300MW循环流化床(CFB)锅炉的二次风机与600MW煤粉锅炉的一次风机参数相近

据此提出了300 MW CFB锅炉的二次风机可以采用双级动调轴流式风机。与离心式风机+变频或离心式风机+挡板方案相比

双机动调轴流式风机的调节范围更广

调节效率较高

设备占地面积少

初投资和维护费用较低

经济效益和社会效益显著。

Abstract

The parameters of secondary air fan in 300MW circulating fluidized bed(CFB)boilers are close to that of the primary air fan in 600MW pulverized coal(PC)fired boilers.Thus

suggestion that the secondary air fan in 300MW CFB boilers can be two-stage dynamic adjustable axial flow fan was proposed.Compared with such schemes as centrifugal fan with frequency conversion or centrifugal fan with damp

the two-stage dynamic adjustable axial flow fan has wider regulation range and higher adjustment efficiency.Moreover

it occupies smaller area

thus has lower initial investment and maintenance cost.Therefore

it is more reasonable to adopt two-stage dynamic adjustable axial flow fan as the secondary air fan in 300MW CFB boilers.

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