Huadian Technology ›› 2021, Vol. 43 ›› Issue (5): 64-69.doi: 10.3969/j.issn.1674-1951.2021.05.010
• Energy Conservation and Environmental Protection • Previous Articles Next Articles
CONG Xingliang1(), XIE Hong1, SU Yang1, ZHANG Jun1, CHENG Yingjie2
Received:
2020-09-29
Revised:
2021-03-28
Online:
2021-05-25
Published:
2021-05-18
CLC Number:
CONG Xingliang, XIE Hong, SU Yang, ZHANG Jun, CHENG Yingjie. Experimental study on deep peak-load shaving of a 660 MW ultra-supercritical secondary reheating unit[J]. Huadian Technology, 2021, 43(5): 64-69.
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URL: https://www.hdpower.net/EN/10.3969/j.issn.1674-1951.2021.05.010
Tab.2
Main design parameters of the boiler
项目 | 单位 | 最大出力工况 | 额定负荷工况 |
---|---|---|---|
过热蒸汽流量 | t/h | 1 785.49 | 1 733.48 |
过热蒸汽出口压力 | MPa | 32.45 | 32.36 |
过热蒸汽出口温度 | ℃ | 605.0 | 605.0 |
给水压力 | MPa | 36.45 | 36.14 |
给水温度 | ℃ | 314.0 | 314.0 |
一次再热蒸汽流量 | t/h | 1 668.69 | 1 602.84 |
一次再热器出口压力 | MPa | 11.05 | 10.59 |
一次再热器出口温度 | ℃ | 623.0 | 623.0 |
一次再热器进口压力 | MPa | 11.40 | 10.93 |
一次再热器进口温度 | ℃ | 436.0 | 428.0 |
二次再热蒸汽流量 | t/h | 1 425.42 | 1 365.49 |
二次再热器出口压力 | MPa | 3.33 | 3.18 |
二次再热器出口温度 | ℃ | 623.0 | 623.0 |
二次再热器进口压力 | MPa | 3.52 | 3.36 |
二次再热器进口温度 | ℃ | 442.0 | 442.0 |
Tab.3
Control and operation parameters of the pulverizing system
名称 | 单位 | 数值 |
---|---|---|
A/C/D给煤机给煤量 | t/h | 29.9/28.8/30.9 |
A/C/D磨煤机电流 | A | 39.0/45.7/43.0 |
A/C/D磨煤机入口一次风量 | t/h | 85.7/87.7/84.8 |
A/C/D磨煤机入口一次风温 | ℃ | 143.5/126.3/192.3 |
A/C/D磨煤机出口风粉温度 | ℃ | 80.1/81.0/80.5 |
A/C/D磨煤机热一次风门开度 | % | 23.3/18.6/20.5 |
A/C/D磨煤机冷一次风门开度 | % | 44.6/47.0/33.8 |
A/C/D磨煤机液压加载压力 | MPa | 5.60/4.80/4.70 |
Tab.4
Control and operation parameters of air and flue gas system
名称 | 单位 | 数值 |
---|---|---|
空预器主电机电流A/B | A | 23.7/24.1 |
引风机动叶位置反馈A/B | % | 37.90/37.30 |
引风机电流A/B | A | 189.4/190.1 |
引风机入口压力A/B | kPa | -2.1/-2.1 |
送风机动叶位置反馈A/B | % | 22.4/21.6 |
送风机电流A/B | A | 55.1/55.1 |
送风机出口压力A/B | kPa | 0.9/0.9 |
一次风机动叶位置反馈A/B | % | 42.22/38.25 |
一次风机电流A/B | A | 102.7/100.2 |
一次风机出口压力A/B | kPa | 8.2/8.6 |
总风量 | t/h | 1 264.1 |
总一次风量 | t/h | 339.1 |
A/B 侧二次风量 | t/h | 482.3/442.7 |
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