浙江电力

2022, v.41;No.317(09) 101-106

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提高二次再热机组参数的技术经济研究
Technical and economic study on improving parameters of double reheat units

於震跃,徐红波,郑应霞,张卫灵,陈顺义,黄乃成
YU Zhenyue,XU Hongbo,ZHENG Yingxia,ZHANG Weiling,CHEN Shunyi,HUANG Naicheng

摘要(Abstract):

我国投运的超超临界二次再热机组的蒸汽参数基本为31 MPa/600℃/620℃/620℃。通过介绍目前耐高温材料研究现状,对可工程应用的二次再热机组高蒸汽参数进行分析,研究比较采用高蒸汽参数方案(35 MPa/615℃/630℃/630℃)和常规蒸汽参数方案的二次再热机组的技术经济性。结果表明,当标煤价格高于820元/t时,630℃等级二次再热机组的经济性更优。若考虑未来的碳排放交易收益,两种方案经济性平衡点的标煤价格约为690元/t。
The typical steam parameters of ultra-supercritical secondary reheat units put into operation in China are 31 MPa/600℃/620℃/620℃. Based on the introduction of the research of high temperature resistant materials,this paper analyzes the high steam parameters of the double reheat units that can be applied in engineering. This paper studies the technical economy comparison of 35 MPa/615℃/630℃/630℃ high steam parameter scheme and conventional steam parameter double reheat unit scheme. The results show that when the price of standard coal is higher than 820 yuan/ton,the economy of the 630℃ class double reheat units is superior. If the future carbon emission trading income is considered,the coal price at the economic balance point of the two schemes is about 690 yuan/ton.

关键词(KeyWords): 超超临界;二次再热机组;630℃等级;二氧化碳排放
ultra-supercritical;double reheat units;630℃ class;carbon dioxide emission

Abstract:

Keywords:

基金项目(Foundation): 中国电建集团华东勘测设计研究院有限公司科技项目(KY2021-JD-02-10)

作者(Author): 於震跃,徐红波,郑应霞,张卫灵,陈顺义,黄乃成
YU Zhenyue,XU Hongbo,ZHENG Yingxia,ZHANG Weiling,CHEN Shunyi,HUANG Naicheng

DOI: 10.19585/j.zjdl.202209013

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