NUMERICAL SIMULATION BASED COLD TESTS FOR A TANGENTIALLY FIRED BOILER

XIANG Yuhua1; 2; ZHANG Jiayuan1

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NUMERICAL SIMULATION BASED COLD TESTS FOR A TANGENTIALLY FIRED BOILER

更新时间：2025-09-28

- NUMERICAL SIMULATION BASED COLD TESTS FOR A TANGENTIALLY FIRED BOILER
- Thermal Power Generation Vol. 41, Issue 12, Pages: 14-18(2012)
- 作者机构：
  
  1. 中南大学能源科学与工程学院
  2. 湖南化工职业技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2012
- 稿件说明：
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XIANG Yuhua1, 2, ZHANG Jiayuan1. NUMERICAL SIMULATION BASED COLD TESTS FOR A TANGENTIALLY FIRED BOILER[J]. Thermal power generation, 2012, 41(12): 14-18.
DOI：

XIANG Yuhua1, 2, ZHANG Jiayuan1. NUMERICAL SIMULATION BASED COLD TESTS FOR A TANGENTIALLY FIRED BOILER[J]. Thermal power generation, 2012, 41(12): 14-18. DOI：

摘要

针对某170t/h四角切圆燃烧锅炉在低负荷下燃用劣质煤种时发生熄火和严重结焦的情况

通过锅炉冷态试验

全面了解了各次风管特性及炉内切圆大小和位置等

据此可以判断炉内结焦原因及区域。在此基础上

通过对锅炉炉内燃烧过程的数值模拟

可方便有效地为锅炉在不同负荷下燃用不同煤种时提供最佳运行参数。实际应用表明

在燃用当前煤种条件下

该锅炉能够长期稳定运行在60%负荷左右

热效率达到91%以上

且无不正常灭火事故发生

结焦现象明显减轻。

Abstract

Such problems as flameout and serious slagging frequently occurred in a 170 t/h tangentially fired boiler burning inferior coals and with low load.Thus

cold tests were carried out to comprehensively investigate the performance of each air tube and the size and position of the tangential circle.Therefore

the cause and area of slagging in furnace can be determined.Thus

by numerical simulation on combustion

the optimal operation parameters for the boiler burning different coals under various loads conditions can be provided.The actual application showed that

the boiler fed with present coal can be long-term operated stably at 60% load

and its heat efficiency was up to 91%.Moreover

the abnormal flameout no longer occurred

and the slagging was alleviated a lot.

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