Numerical simulation on thermodynamic characteristics of air preheater bypass flue gas waste heat utilization system

XIE Tian; FAN Qingwei; FANG Jin; HUANG Jiasi

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Numerical simulation on thermodynamic characteristics of air preheater bypass flue gas waste heat utilization system

Thermal Power Generation Issue 9, (2017)

更新时间：2025-09-28

- Numerical simulation on thermodynamic characteristics of air preheater bypass flue gas waste heat utilization system
- 作者机构：
  
  1. 西安西热节能技术有限公司,陕西,西安,710054
  2. 中国能源建设集团西北电力试验研究院有限公司,陕西,西安,710032
- 作者简介：
- 基金信息：
- DOI：
  CLC： X706
- Published Online：30 September 2017，
  
  Published：2017
- 稿件说明：
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XIE Tian, FAN Qingwei, FANG Jin, et al. Numerical simulation on thermodynamic characteristics of air preheater bypass flue gas waste heat utilization system[J]. Thermal Power Generation, 2017, (9).
DOI：

XIE Tian, FAN Qingwei, FANG Jin, et al. Numerical simulation on thermodynamic characteristics of air preheater bypass flue gas waste heat utilization system[J]. Thermal Power Generation, 2017, (9). DOI：

摘要

燃煤电站锅炉普遍存在排烟温度高、排烟热损失大的问题。本文根据能量梯级利用的原则，以某超临界600 MW机组为例，采用商业软件EBSILON建立了包含锅炉、汽轮机和发电机的完整系统模型，并在此模型基础上对常规低压省煤器系统和空气预热器旁路烟气余热利用系统进行了热力特性数值模拟。结果表明：空气预热器旁路烟气余热利用系统可提高烟气余热的利用能级，实现能量的梯级利用，其节能效果约为常规低压省煤器系统的2倍；空气预热器旁路烟气余热利用系统更适用于热一次风干燥能力较大的机组。

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A deep waste heat utilization system for utility boilers based on segmented air preheater design

Application of combined system of low pressure economizer and air heater

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