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金属学报  2020, Vol. 56 Issue (4): 539-548    DOI: 10.11900/0412.1961.2019.00419
  综述 本期目录 | 过刊浏览 |
630~700 ℃超超临界燃煤电站耐热管及其制造技术进展
刘正东(),陈正宗,何西扣,包汉生
中国钢研科技集团有限公司 北京 100081
Systematical Innovation of Heat Resistant Materials Used for 630~700 ℃ Advanced Ultra-Supercritical (A-USC)Fossil Fired Boilers
LIU Zhengdong(),CHEN Zhengzong,HE Xikou,BAO Hansheng
China Iron and Steel Research Institute Group Co. Ltd. , Beijing 100081, China
引用本文:

刘正东,陈正宗,何西扣,包汉生. 630~700 ℃超超临界燃煤电站耐热管及其制造技术进展[J]. 金属学报, 2020, 56(4): 539-548.
Zhengdong LIU, Zhengzong CHEN, Xikou HE, Hansheng BAO. Systematical Innovation of Heat Resistant Materials Used for 630~700 ℃ Advanced Ultra-Supercritical (A-USC)Fossil Fired Boilers[J]. Acta Metall Sin, 2020, 56(4): 539-548.

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摘要: 

迄今，600 ℃超超临界是世界最先进商用燃煤电站技术。630~700 ℃超超临界燃煤电站研发将奠定我国火电技术的国际领先地位，对实现国家节能减排目标具有重要战略意义。耐热材料是制约火电机组蒸汽温度进一步提升的技术瓶颈，本文简述了国内外630~700 ℃超超临界电站耐热材料研制现状，指出了我国急需研发的关键耐热材料。阐述了作者团队在多年实践中总结的电站耐热材料“全流程选择性冶金过程设计和选择性强韧化设计”观点，重点介绍了在该设计观点指导下，我国成功研发了用于630~650 ℃的马氏体耐热钢G115?，用于650~700 ℃的固溶强化型镍基耐热合金C-HRA-2?、C-HRA-3?，以及用于700~750 ℃的析出强化型镍基耐热合金C-HRA-1?，系统构建了我国630~700 ℃超超临界燃煤锅炉耐热材料体系，并已成功制造了上述新型耐热材料锅炉管。
关键词 ： 630~700 ℃蒸汽温度,  超超临界,  燃煤锅炉,  新型耐热材料    
Abstract：

To date, the 600 ℃ ultra-supercritical (USC) fossil fired power plant is the most advanced in the world. The research and development of 630~700 ℃ advanced ultra-supercritical (A-USC) fossil fired power plant will lay the thermal power technology in China in the international leading position, which is of important strategic significance to realize the national energy conservation and emissions reduction targets. Heat resistant material is the technical necking to further increase the steam parameter of thermal power plants. This paper briefed the-state-of-the-art of heat resistant materials used for 630~700 ℃ A-USC fossil fired power plant worldwide and clarified the critical candidate materials which are on the top priority to develop in China. The selective metallurgical processing design and selective strengthening mechanism, concluded by the author to design and improve heat resistant materials, was introduced. Under the guidance of the selective strengthening mechanism, G115? martensitic steel used for 630~650 ℃, C-HRA-2? and C-HRA-3? alloy used for 650~700 ℃, and C-HRA-1? alloy used for 700~750 ℃ have been successfully developed, which built a complete heat resistant material system to cover 630~700 ℃ A-USC fossil fired power plant. The boiler tubing and piping of these novel heat resistant materials have been industrially manufactured.
Key words： 630~700 ℃ steam temperature    advanced ultra-supercritical    fossil fired boiler    novel heat resistant material
收稿日期: 2019-12-09     
ZTFLH:  TB35  
基金资助:国家重点研发计划项目(2017YFB0305200)
作者简介: 刘正东，男，1966年生，教授级高级工程师，博士
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https://www.ams.org.cn/CN/10.11900/0412.1961.2019.00419      或      https://www.ams.org.cn/CN/Y2020/V56/I4/539

MaterialCSiMnCrNiMoWCo
T/P910.08~0.120.20~0.400.30~0.508.0~9.5≤0.200.85~1.05≤0.05-
T/P920.07~0.13≤0.500.30~0.608.5~9.5≤0.400.30~0.601.50~2.00-
S304320.07~0.13≤0.30≤1.0017.0~19.07.5~10.5---
S310420.04~0.10≤1.0≤2.024.0~26.019.0~22.0---
Sanicro 250.04~0.10<0.40<0.6021.5~23.523.5~26.5-3.0~4.01.0~2.0
Inconel 6170.05~0.15≤1.0≤1.020.0~24.0Bal.8.0~10.0-10.0~15.0
Inconel 7400.005~0.08≤1.0≤1.023.5~25.5Bal.

≤2.0

-15.0~22.0
MaterialNbVTiNBCuFeStandard
T/P910.06~0.100.18~0.25≤0.010.035~0.070≤0.001≤0.10Bal.ASME SB 213/213M
T/P920.04~0.090.15~0.25≤0.010.030~0.0700.001~0.006-Bal.ASME SB 213/213M
S304320.30~0.60--

0.05~0.12

0.001~0.010

2.5~3.5

Bal.ASME SB 213/213M
S310420.20~0.60--0.15~0.35--Bal.ASME SB 213/213M
Sanicro 250.40~0.60--0.20~0.300.002~0.0082.5~3.5Bal.ASME SB 213/213M
Inconel 617--≤0.6-≤0.006≤0.5≤3.0ASME SB 167
Inconel 740

0.5~2.5

-0.5~2.5Al 0.2~2.00.0006~0.006

≤0.50

≤3.0ASME Code Case 2702
表1  典型锅炉管耐热材料化学成分 (mass fraction / %)
图1  G115?钢在650 ℃时效8000 h后马氏体板条的TEM像
图2  G115?钢在650和700 ℃时效过程中M23C6的粗化
图3  G115?和P92钢在650 ℃的持久曲线
图4  G115?和P92钢在650 ℃的抗蒸汽腐蚀性能
图5  G115?钢在蒸汽温度650 ℃、2000 h时的内层氧化皮结构
AlloyCrCoMoAlTiCBNbVZrWNiRef.
Inconel61720.0~24.010.0~15.08.0~10.00.8~1.5≤0.60.05~0.15≤0.006----Bal.ASME SB 167
Inconel617B21.0~23.011.0~13.08.0~10.00.8~1.30.25~0.500.05~0.080.001~0.005≤0.6≤0.6--Bal.DIN 2.4673
C-HRA-3?21.0~23.011.0~13.08.5~9.00.8~1.30.3~0.50.05~0.080.002~0.005≤0.1≤0.1≤0.10≤1.0Bal.[21]
C-HRA-2?21.0~23.011.0~13.08.5~9.0--0.05~0.080.002~0.005≤0.1-≤0.10≤1.0Bal.[22]
表2  Inconel617、Inconel617B、C-HRA-3?和C-HRA-2?合金的化学成分[21,22] (mass fraction / %)
图6  C-HRA-3?合金700 ℃的时效冲击功
图7  C-HRA-3?合金700 ℃的持久寿命
图8  C-HRA-2?耐热合金675和700 ℃时效后冲击功随时间的变化
图9  C-HRA-2?耐热合金650~700 ℃的持久寿命
图10  Inconel740H合金胞状碳化物的形貌、SAED谱及TEM像
图11  C-HRA-1?合金750和800 ℃的持久寿命
图12  我国600-630-700 ℃超超临界燃煤锅炉管耐热材料体系示意图
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