Research on Steam-Water Quality Controlfor Ultra-Supercritical Power Plant

南方能源建设

LI Shaojie¹  TAN Qunxing¹ 

[1] China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, China;

关键词: thermal system;    ultra-supercritical;    steam-water quality;    coal-fired power plant;   

DOI  :  10.16516/j.gedi.issn2095-8676.2021.03.016

来源: DOAJ

【 摘 要 】

[Introduction] The ultra-supercritical unit is the main power generation unit in China, which has strict requirements on water steam quality. In this paper, water steam quality control measures have been proposed to prevent scaling and corrosion of the thermal system and ensure safe and economic operation of the unit. [Method] To control the steam-water quality of ultra-supercritical units, proper demineralized water production process, reliable condensate polishing system, feedwater oxygenation treatment (OT), reasonable on-line monitoring meter, appropriate condenser pipe and shutdown protection were selected. [Result] The above measures can effectively prevent scaling and corrosion of the thermal system and ensure the safe and economic operation of the unit. [Conclusion] The steam-water quality control of ultra-supercritical parameters units can refer to the Water Vapor Quality of Thermal Power Units and Steam Power Equipment (GB/T 12145—2016), and it is recommended to control the Parameters according to the expected value.

【 授权许可】

Unknown