Dynamic Characteristics of Lignite Power System Integrated with Primary Air Reheater

YIN Chaoqiang; LI Maoliang; LI Mengjie; GAO Wei; CHEN Chen; LIU Ming

doi:10.19805/j.cnki.jcspe.2026.240783

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Dynamic Characteristics of Lignite Power System Integrated with Primary Air Reheater

更新时间：2026-10-10

- Dynamic Characteristics of Lignite Power System Integrated with Primary Air Reheater
- Chinese Journal of Power Engineering Vol. 46, Issue 4, Pages: 12-19(2026)
- 作者机构：
  
  1. 东方电气集团东方锅炉股份有限公司,四川,自贡,643001
  2. 能源清洁低碳热转化利用技术与装备四川省重点实验室,四川,成都,611731
  3. 西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.240783
  CLC： TK32
- Published：2026
- 稿件说明：
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尹朝强, 黎懋亮, 李蒙杰, 高伟, 陈晨, 刘明. 集成一次风再加热器的褐煤发电系统动态特性研究[J]. 动力工程学报, 2026, 46(4): 12-19.
尹朝强, 黎懋亮, 李蒙杰, 高伟, 陈晨, 刘明. 集成一次风再加热器的褐煤发电系统动态特性研究[J]. 动力工程学报, 2026, 46(4): 12-19. DOI： 10.19805/j.cnki.jcspe.2026.240783.

DOI： 10.19805/j.cnki.jcspe.2026.240783

摘要

褐煤发电系统在负荷率或环境温度较低时

磨煤机的干燥出力不足

制约了褐煤发电系统的运行灵活性。因此建立了集成一次风再加热器的褐煤发电系统动态模型

验证了模型的可靠性

同时动态模拟了褐煤发电系统升降负荷和一次调频过程中热力参数的动态变化规律。结果表明:增设一次风再加热器可使一次风温度提高40~63 K

从而满足干燥出力需求;一次风温度在升降负荷过程中均可以控制在合理范围内

从而验证了集成一次风再加热器提升磨煤机干燥出力的可行性。

Abstract

When the load ratio or the ambient temperature of lignite power system is low

lignite drying process in coal mills is insufficient

which restricts the operational flexibility of the lignite power system. To address the aforementioned issues

a dynamic model of the lignite power generation system with a primary air reheater was established. The reliability of the model was verified

and the dynamic changes in thermal parameters during load variation and primary frequency modulation processes of the lignite power generation system were also dynamically simulated. Results show that the integration of the primary air reheater can increase the primary air temperature by 40-63 K to meet the demand for drying output

and the primary air temperature can be controlled within a reasonable range during loading up-down

thus verifying the feasibility of integrating the primary air reheater to improve the drying output of the coal mill.

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references

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