Effect of condensate load adjustment technology on low temperature economizer system: experimental and numerical study

FAN Qingwei; CHANG Dongfeng; CHAI Qi; HUANG Jiasi; LUO Qing; XIE Tian

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Effect of condensate load adjustment technology on low temperature economizer system: experimental and numerical study

Thermal Power Generation Issue 10, (2017)

更新时间：2025-09-28

- Effect of condensate load adjustment technology on low temperature economizer system: experimental and numerical study
- 作者机构：
  
  1. 西安西热节能技术有限公司,陕西,西安,710032
  2. 西安热工研究院有限公司,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published Online：01 November 2017，
  
  Published：2017
- 稿件说明：
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FAN Qingwei, CHANG Dongfeng, CHAI Qi, et al. Effect of condensate load adjustment technology on low temperature economizer system: experimental and numerical study[J]. Thermal Power Generation, 2017, (10).
DOI：

FAN Qingwei, CHANG Dongfeng, CHAI Qi, et al. Effect of condensate load adjustment technology on low temperature economizer system: experimental and numerical study[J]. Thermal Power Generation, 2017, (10). DOI：

摘要

为了探究凝结水变负荷技术对低温省煤器（低省）系统的影响，对国内某超临界660 MW机组展开试验，通过建立低省换热特性瞬态模拟计算模型，对试验结果进行理论计算分析。结果表明：采用凝结水变负荷过程中，低省系统出口烟温、出口水温在时间维度上的响应滞后性非常显著，但运行参数波动幅度非常小，系统扰动量小，可以安全、稳定、经济运行；随着负荷升高，凝结水流量变化对低省系统的影响逐渐显著，表现为相同的凝结水流量阶跃幅度下，低省出口水温、烟温的升高幅度逐渐增加，出口水温响应延时缩短；计算结果与试验数据吻合性较好，证明所建模型的准确性和适用性。以上研究成果可为带低省的机组进行凝结水变负荷技术改造提供参考；模拟计算方法可为锅炉设备的负荷响应速率的预测提供参考依据。

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