Application and Analysis of Key Technologies in Ultra-Efficient 1 000-MW Steam Turbine

doi:10.11930/j.issn.1004-9649.2016.10.033.05

Abstract

Abstract: There are two 1 000-MW units installed in the first phase project of Shenhua(Fuzhou) Luoyuan Bay Port & Power Co., Ltd. with the designed heat rate of 7 202 kJ/（kW·h）. In this paper, the steam turbines of this power plant are introduced and compared with the domestic 1 000-MW steam turbines of some other different types. In addition, the key technologies used in these steam turbines are analyzed, such as steam flow exciting vibration prevention and overspeed protection as well as the structure of HP/LP casing. The advantages of the ultra-efficient turbine are also expounded as far as the security and economic performance are concerned. At last, suggestions are put forward on future improvements in the aspects of shafting supports and heat regenerative system, etc.

Key words: thermal power plant, ultra-supercritical unit, steam turbine, ultra-high efficiency, key technology

CLC Number:

TM621
TK263

LIN Xiuhua. Application and Analysis of Key Technologies in Ultra-Efficient 1 000-MW Steam Turbine[J]. Electric Power, 2016, 49(10): 33-37.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.10.033.05

https://www.electricpower.com.cn/EN/Y2016/V49/I10/33

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