Research on main and reheat steam temperature lifting method for ultra supercritical 1000 MW unit double-tangential circular boiler

HU Qingwei; SU Sheng; XIANG Jun; CUI Xiaoning

doi:10.19666/j.rlfd.201908177

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Research on main and reheat steam temperature lifting method for ultra supercritical 1000 MW unit double-tangential circular boiler

更新时间：2025-09-28

- Research on main and reheat steam temperature lifting method for ultra supercritical 1000 MW unit double-tangential circular boiler
- Thermal Power Generation Vol. 49, Issue 3, Pages: 107-112(2020)
- 作者机构：
  
  1. 大唐三门峡发电有限责任公司
  2. 华中科技大学煤燃烧国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201908177
  CLC： TM621.2
- Published：2020
- 稿件说明：
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HU Qingwei, SU Sheng, XIANG Jun, et al. Research on main and reheat steam temperature lifting method for ultra supercritical 1000 MW unit double-tangential circular boiler[J]. Thermal power generation, 2020, 49(3): 107-112.
DOI：

HU Qingwei, SU Sheng, XIANG Jun, et al. Research on main and reheat steam temperature lifting method for ultra supercritical 1000 MW unit double-tangential circular boiler[J]. Thermal power generation, 2020, 49(3): 107-112. DOI： 10.19666/j.rlfd.201908177.

摘要

本文以某超超临界1 000 MW机组双切圆燃烧锅炉为研究对象

通过理论分析及模拟计算

分析了制约汽温提升的主要因素和受热面热偏差规律

针对不同的受热面提出了汽温提升方法。实际应用结果表明

按照本文提出的汽温提升方案改造后

机组的主蒸汽温度提升约15℃

再热蒸汽温度提升约13℃

供电煤耗降低约2.5 g/(kW·h)

达到了预期效果

实现了机组安全与经济运行。

Abstract

The double-tangential combustion boiler in an ultra supercritical 1 000 MW unit is studied by theoretical analysis and simulation calculation. The main factors that restricting the steam temperature improvement and causing the thermal deviation of the heated surface of the boiler are analyzed

and the methods for steam temperature improvement of different heating surfaces are proposed. The actual application results indicate that

after transformation using the steam temperature improvement scheme proposed by this paper

the main steam and reheat steam temperature of the unit increased by about 15 ℃ and 13 ℃

respectively

and the coal consumption reduced by about 2.5 g/(kW·h)

which achieved the expected effect. The safety and economic operation of the unit has been obtained.

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