Convective heat transfer characteristics of boiler high temperature superheater under pressurized oxygen enrichment condition

LI Xiaomin; WANG Lijun

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Convective heat transfer characteristics of boiler high temperature superheater under pressurized oxygen enrichment condition

Thermal Power Generation Issue 9, (2017)

更新时间：2025-09-28

- Convective heat transfer characteristics of boiler high temperature superheater under pressurized oxygen enrichment condition
- 作者机构：
  
  1. 山西大同大学建筑与测绘工程学院,山西,大同,037003
  2. 国电电力大同发电有限责任公司,山西,大同,037043
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK39
- Published Online：30 September 2017，
  
  Published：2017
- 稿件说明：
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LI Xiaomin, WANG Lijun. Convective heat transfer characteristics of boiler high temperature superheater under pressurized oxygen enrichment condition[J]. Thermal Power Generation, 2017, (9).
DOI：

LI Xiaomin, WANG Lijun. Convective heat transfer characteristics of boiler high temperature superheater under pressurized oxygen enrichment condition[J]. Thermal Power Generation, 2017, (9). DOI：

摘要

以300 MW燃煤发电机组为研究对象，在不同烟气流速条件下，建立高温过热器优化模型。以单位时间内相同换热效果下高温换热器投资总费用最低为目标，得到增压富氧燃烧气氛下高温过热器的最佳设计结构和理想烟气流速。通过设置4种不同扰动工况下的边界条件，研究高温过热器蒸汽出口温度和动态响应时间的变化规律。结果表明：与空气气氛相比，增压富氧气氛下高温过热器蒸汽入口流量、烟气入口流量、蒸汽入口温度、烟气入口温度分别增加10%时，汽温响应时间分别缩短11.88、7.92、10.89、6.93 s，蒸汽出口温度变化量分别减少0.40、0.33、0.20、5.34 K。

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