Unplanned outage analysis and optimization of circulating water control system of a unit

Abstract

Abstract:

Circulating water system is a basic system of a thermal power unit. The control quality of the system is directly related to the safety and economy of unit operation. It analyzes the direct and indirect causes of unplanned outage caused by the trip of circulating water pump. The control logic optimization is made on circulating water pump, circulating pump outlet butterfly valve and pump power cabinet. Advice on maintenance of butterflyvalve power station at pump outlet is proposed.It improves the safety and reliability of unit operation.

Key words:

circulating water control system, unplanned outage, thermal power unit, control system optimization

CHEN Chunlin， YUAN Shitong.

Unplanned outage analysis and optimization of circulating water control system of a unit

[J]. Huadian Technology, 2018, 40(6): 44-46.

[1]	ZHANG Xingke, WEI Chaoyang, WANG Kangping, TIAN Hao, MIAO Pengfei, ZHOU Xia, WEI Cong. Strategies for relieving ramp pressure of thermal power units with high-proportion photovoltaic power connecting to the grid [J]. Integrated Intelligent Energy, 2022, 44(1): 1-8.
[2]	HAN Xudong. Data-driven based research on anomaly detection for high-pressure heaters in thermal power units [J]. Huadian Technology, 2021, 43(8): 67-73.
[3]	LIU Shuai,ZHENG Lijun,YU Cong,GAO Xinyong,Liu Guobi,ZHAO Chunfeng,ZHANG Xiaoli,CAO Chuang,XU Jianpeng. Analysis on heating supply retrofit of a 200MW unit by cutting off the lowpressure cylinder steam admission [J]. Huadian Technology, 2020, 42(6): 76-82.
[4]	BAI Changqing. Analysis of FCB function in Yangmei Xishangzhuang 2×660MW thermal power units [J]. Huadian Technology, 2019, 41(9): 59-62.
[5]	MA Liang. Research on predictive coordinated control strategy based on main steam dynamic characteristics [J]. Huadian Technology, 2019, 41(6): 57-60.
[6]	ZHU Hao. Discussion on the problem of power supply with different grids in thermal power plant [J]. Huadian Technology, 2018, 40(9): 25-27.
[7]	XIA Xuemin. Prevention measures for pipe bursting of water wall of 600MW ultrasupercritical boilers [J]. Huadian Technology, 2018, 40(8): 52-53.
[8]	HAN Qin, FAN Huijian, LIU Zhanli. Analysis on power reliability of 600MW and above coalfired units [J]. Huadian Technology, 2018, 40(5): 45-49.
[9]	LI Peng, ZHAO Qicheng. FCB design and test analysis for thermal power units [J]. Huadian Technology, 2018, 40(12): 1-3.
[10]	XING Hao, ZHENG Xifeng. Retrofitting of flue pipe mist eliminator of 330MW thermal power unit [J]. Huadian Technology, 2018, 40(1): 71-72.
[11]	WANG Wei. Measures of energy saving and consumption reduction during shutdown of thermal power units [J]. Huadian Technology, 2017, 39(3): 68-69.
[12]	LI Zhigang1，LIU Honglei2，LI Xutong3. Discussion of mist eliminator renovation in 2×660MW thermal power units [J]. Huadian Technology, 2017, 39(12): 62-64.
[13]	WANG Bin. Pressure difference control measures for air preheater of ultralow emission thermal power unit [J]. Huadian Technology, 2017, 39(12): 65-66.
[14]	LIANG Weiping,ZHANG Chaofeng,SHI Liuyang. Research and development of thermal power expert grating system [J]. Huadian Technology, 2016, 38(6): 21-22.
[15]	TAN Pengzhan. Problems needing attention in electrical design of newbuilt thermal power unit [J]. Huadian Technology, 2015, 37(7): 32-34.

Unplanned outage analysis and optimization of circulating water control system of a unit

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments