Numerical simulation of fly ash erosion on bolier tail flue channel

ZHOU Mengwei; NIU Guoping; JIA Guangrui; LUO Zhi; TAN Zengqiang; YANG Xiaogang

doi:10.19666/j.rlfd.201903051

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Numerical simulation of fly ash erosion on bolier tail flue channel

更新时间：2025-09-28

- Numerical simulation of fly ash erosion on bolier tail flue channel
- Thermal Power Generation Vol. 48, Issue 8, Pages: 62-67(2019)
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能铜川照金煤电有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201903051
  CLC： TK224
- Published Online：01 August 2019，
  
  Published：2019
- 稿件说明：
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ZHOU Mengwei, NIU Guoping, JIA Guangrui, et al. Numerical simulation of fly ash erosion on bolier tail flue channel[J]. Thermal power generation, 2019, 48(8): 62-67.
DOI：

ZHOU Mengwei, NIU Guoping, JIA Guangrui, et al. Numerical simulation of fly ash erosion on bolier tail flue channel[J]. Thermal power generation, 2019, 48(8): 62-67. DOI： 10.19666/j.rlfd.201903051.

摘要

为解决燃煤锅炉尾部烟道的磨损问题

利用计算流体力学(CFD)软件进行气固两相流场模拟和磨损预测

寻找实际运行中烟道严重磨损的位置

并以某超临界660 MW燃煤机组锅炉为例进行模拟。模拟结果发现

磨损主要集中在锅炉尾部水平段烟道下壁面、上升段烟道转角、水平段导流板及上升段涡盘

磨损率最大值达到1.94×10~(–5) kg/(m~2·s)

而实际情况为该机组运行6个月发现水平烟道下壁面磨穿至保温层

导流板及涡盘磨损至撕裂和消失

模拟结果与实际情况一致。

Abstract

In order to solve the wear problem occurs on tail flue of coal-fired boilers

this paper simulates the gas-solid two-phase flow field and predicts the erosion situation by computational fluid dynamics(CFD)

and finds out the location of severe wear in actual operation.Moreover

numerical simulation was carried out by taking a supercritical 660 MW coal-fired boiler as an examplec.The results show that

the wear mainly concentrates on the lower wall of the horizontal flue

the corner of the rising flue

the diversion plate of the horizontal section and the vortex disc of the rising section

with the maximum wear rate reaching 1.94×10~(–5) kg/(m~2·s).The actual situation is that the lower wall of the horizontal flue weared through the insulation layer

the diversion plate and the scroll disc basically disappeared after 6 months’operation.The simulation results are consistent with the actual situation.

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Related Author

NIU Guoping

ZHOU Mengwei

YANG Xiaogang

CHAO Yongshun

LI Haihao

JIA Guangrui

TAN Zengqiang

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Related Institution

Huzhou Special Equipment Testing Center

College of Energy and Power Engineering, Jiangsu University

General Electric Company of China

GE Energy,4 Park Plaza,Irvine,14

Sinopec Yangtze Petrochemical Branch

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