摘要
超临界二氧化碳(S-CO_(2))循环发电技术因其自身的技术优势成为热力发电领域一项具有划时代意义的重大变革性前沿技术,由于十分苛刻的工作环境,S-CO_(2)易造成设备材料腐蚀。为确保S-CO_(2)系统安全有效地运行,首先介绍了S-CO_(2)布雷顿循环系统工质运行参数范围以及系统关键设备候选材料,其次综述了目前有关金属材料在S-CO_(2)环境中的腐蚀行为研究现状,然后详细阐述了S-CO_(2)环境下的腐蚀机理,归纳了温度、压力、杂质、流速以及材料成分对S-CO_(2)腐蚀过程的影响,同时介绍了S-CO_(2)腐蚀防控技术的研究进展,最后进行了总结并指出了现有研究的不足及未来研究的主要方向,为我国S-CO_(2)循环系统的安全运行提供科学依据。
The supercritical carbon dioxide(S-CO_(2))cycle power generation technology has become an epoch�making and revolutionary frontier technology in the field of thermal power generation because of its own technical advantages.Due to the very harsh working environment,S-CO_(2)is easy to cause corrosion problems of equipment materials.In order to ensure the safe and effective operation of S-CO_(2)system,the range of working medium parameters and candidate materials of the system’s key equipment are introduced.The current research status of corrosion behavior of metal materials in S-CO_(2)environment are then reviewed.The corrosion mechanism in S-CO_(2)carbon environment is elaborated in detail.The influences of temperature,pressure,impurities,flow rate and material composition on S-CO_(2)corrosion process are summarized.Meanwhile,the research progress of S-CO_(2)corrosion prevention and control technology is introduced.Finally,the shortcomings of existing research and the main direction of future research wereare summarized,so as to provide scientific basis for the safe operation of S-CO_(2)recycling system in China.
作者
雷贤良
刘云帆
胡运生
李德标
LEI Xianliang;LIU Yunfan;HU Yunsheng;LI Debiao(State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Xi’an Special Equipment Inspection Institute,Xi’an,710065,China)
出处
《热力发电》
CAS
CSCD
北大核心
2023年第10期1-12,共12页
Thermal Power Generation
基金
国家市场监督管理总局科技计划资助项目(2019MK071)。
关键词
超临界二氧化碳循环发电技术
金属材料
腐蚀机理
supercritical carbon dioxide cycle power generation technology
metallic materials
corrosion mechanism
