Performance and economical quantitative analysis on start-up system in supercritical and ultra-supercritical boilers

ZHU Yunshui 1; SHEN Li 2 1.Department of Energy Engineering

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Performance and economical quantitative analysis on start-up system in supercritical and ultra-supercritical boilers

Thermal Power Generation Vol. 42, Issue 8, Pages: 17-21(2013)

更新时间：2025-09-28

- Performance and economical quantitative analysis on start-up system in supercritical and ultra-supercritical boilers
- 作者机构：
  
  1. 浙江大学能源工程系
  2. 浙江浙能能源技术有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK229.2
- Published：2013
- 稿件说明：
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ZHU Yunshui 1, SHEN Li 2 1.Department of Energy Engineering. Performance and economical quantitative analysis on start-up system in supercritical and ultra-supercritical boilers[J]. Thermal Power Generation, 2013, 42(8): 17-21.
DOI：

ZHU Yunshui 1, SHEN Li 2 1.Department of Energy Engineering. Performance and economical quantitative analysis on start-up system in supercritical and ultra-supercritical boilers[J]. Thermal Power Generation, 2013, 42(8): 17-21. DOI：

摘要

启动系统技术是超(超)临界锅炉的关键技术之一。对各类型直流锅炉启动系统进行分类

对比分析了各类型启动系统的技术特点和安全性

重点对超(超)临界锅炉启动系统的经济性和启动速度进行了定量计算分析。结果表明

超(超)临界锅炉采用带炉水循环泵(BCP)的启动系统时在经济性和启动速度上有明显优势

与简单大气扩容器启动系统相比

其热损失小

启动速度快

相同条件下温态启动一次机组可增加约3h的发电量。因此

对于超(超)临界锅炉采用带BCP启动系统是最佳选择。

Abstract

Start-up system is a key technology for supercritical and ultra-supercritical boilers.Start-up systems in all kinds of once-through boilers were comprehensively classified.Furthermore

technical features and safety of each start-up system were qualitatively compared.Especially

the economic efficiency and start-up speed of supercritical and ultra-supercritical boilers were quantitatively calculated.The results showed that

supercritical and ultra-supercritical boilers adopting start-up system with boiler water circulating pump(BCP)was clearly superior in economy and start-up speed.Compared with the simple start-up system with atmospheric expanding device

the system with BCP had lower heat loss and higher start-up speed

and it can increase about three hours'power generation capacity during one warm state start-up under the same conditions.Therefore

the start-up system with BCP is the best choice for supercritical and ultra-supercritical boilers.

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