张祝,陈国庆,周小明,姜燕妮

• 1:河海大学机电工程学院
• 2:国家能源集团科学技术研究院有限公司低碳智能燃煤发电及超净排放全国重点实验室

摘要(Abstract)：

为应对新能源发电机组的反调峰特性对电网平稳运行带来的挑战，煤电机组急需提高灵活性运行和深度调峰能力。针对某670 MW一次再热机组，设计了利用蒸汽引射器调配再热器蒸汽入口流量等9种储-释能方案，基于Ebsilon软件建立热力仿真模型并对耦合系统的各项性能进行了分析。研究结果显示：所有方案均能有效拓宽机组的调峰区间；储热时相同调峰深度下抽汽储热方式的热经济性优于电加热储热，集成蒸汽引射器调配抽汽补偿再热入口流量的储热方案可以有效地解决大量抽取主蒸汽带来的再热器超温问题；释热时高温熔盐加热高压给水可以获得更好的热经济效益；储-释热组合方案C1-S2表现出最好的经济性能，其向上调峰深度达到76.89 MW，循环热效率和?效率分别达到42.48%、41.31%。

关键词(KeyWords)： 熔盐储能;火电机组改造;深度调峰;灵活性运行

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目（51976080）;; 清洁高效燃煤发电与污染控制国家重点实验室技术创新项目（D2022fk096）;; 江苏省特种设备安全监督检验研究院科技计划项目（KJ(Y)202409）~~

作者(Author): 张祝,陈国庆,周小明,姜燕妮

DOI: 10.19666/j.rlfd.202307141

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