300MW S-CO<sub>2</sub>一次再热燃煤锅炉炉膛结构设计优化

doi:10.13334/j.0258-8013.pcsee.200100

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300MW S-CO₂一次再热燃煤锅炉炉膛结构设计优化

更新时间：2025-07-03

- 300MW S-CO₂一次再热燃煤锅炉炉膛结构设计优化
- Issue 17, Pages: 5557-5566(2020)
- 作者机构：
  
  华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.200100
  CLC： TM621.2
- Published：2020
- 稿件说明：
移动端阅览
[J]. 2020, (17): 5557-5566.
DOI：

[J]. 2020, (17): 5557-5566. DOI： 10.13334/j.0258-8013.pcsee.200100.

摘要

基于300MW一次再热分流再压缩超临界二氧化碳（S-CO

）布雷顿循环

优化锅炉受热面布置方式

为解决工质压降大和炉膛管壁温度高问题

对S-CO

锅炉炉膛进行结构设计优化

提出S-CO

锅炉炉膛可采用单炉膛双切圆、垂直管屏的结构布置方式。建立系统性能分析模型并计算了膛侧工质压降和管壁温度并与原始方案进行了比较。结果表明:设计负荷下

优化方案过热气冷壁压降和再热气冷壁压降明显降低。优化后因工质压力损失的减小

从而使系统的发电效率上升、发电标准煤耗降低

在设计负荷下

系统标准发电煤耗减少2.8g/（kW×h）。沿炉膛高度方向

优化方案气冷壁的管外壁最高温度显著低于原始方案

优化方案有更宽的安全裕度

从而保证机组的安全运行。

Abstract

On the base of 300 MW split-flow recompression and single reheat supercritical CO

（S-CO

） Brayton cycle

the layout of boiler heating surface optimized. In order to solve the problems of large pressure drop of working fluid and high temperature of furnace tube wall

the furnace structure of S-CO

boiler was optimized. In the optimization scheme

furnace of S-CO

boiler adopts the single furnace double-tangential circle and the vertical tube structure. The system performance analysis model was built

and both the working fluid pressure drop of furnace side and the temperature of tube wall were calculated and compared with those of the original scheme. The results show that under the design load

the pressure drops of both the superheated cooling wall and the reheated cooling wall in

the optimization scheme are obviously reduced. After optimization

due to the decrease of working fluid pressure loss

the power generation efficiency increases and the standard coal consumption of power generation decreases. Under the design load

the system standard coal consumption of power generation is reduced by 2.8 g/（kW×h）. Along the furnace height direction

the maximum temperature of the tube outer wall in the optimization scheme is obviously lower than that of the original scheme

which shows that the optimization scheme has a wider safety margin

so as to ensure the safe operation of the unit.

关键词

Keywords

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AI问答

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300MW S-CO2一次再热燃煤锅炉炉膛结构设计优化

DOI：10.13334/j.0258-8013.pcsee.200100

摘要

Abstract

关键词

Keywords

references

300MW S-CO₂一次再热燃煤锅炉炉膛结构设计优化