1 000 MW双切圆燃烧锅炉干湿态转换过程中水冷壁温度控制

doi:10.11930/j.issn.1004-9649.201808048

中国电力 ›› 2019, Vol. 52 ›› Issue (1): 161-165,173.DOI: 10.11930/j.issn.1004-9649.201808048

1 000 MW双切圆燃烧锅炉干湿态转换过程中水冷壁温度控制

王亚欧, 陶谦, 肖杰, 陈波

江苏方天电力技术有限公司, 江苏南京 211102

收稿日期:2018-08-09 修回日期:2018-09-18 出版日期:2019-01-05 发布日期:2019-01-14
作者简介:王亚欧(1988-),男,硕士,工程师,从事电厂锅炉调试及性能试验研究,E-mail:wyo198806@163.com

Water-Wall Temperature Control of a 1 000 MW Dual Circle Tangential Firing Boiler during Wet-Dry Transferring Period

WANG Ya'ou, TAO Qian, XIAO Jie, CHEN Bo

Jiangsu Frontier Electric Technology Co., Ltd., Nanjing 211102, China

Received:2018-08-09 Revised:2018-09-18 Online:2019-01-05 Published:2019-01-14

摘要/Abstract

摘要： 针对超超临界双切圆锅炉干湿态转换过程中的水冷壁温度偏差大、超温的问题，采取了三个阶段的控制措施：干湿态转换前，优先投入上层磨煤机运行，提高锅炉压力和给水温度；转态过程中，维持合适的水煤比以及较低的中间点过热度；锅炉正常运行时，尽量提高炉膛火焰中心高度，使炉膛热负荷分布更加均匀，调整一、二次风配风方式，降低“热角”区温度。此外，取消了超温管的节流孔圈，增大质量流速。通过以上调整方法，有效缓解了干湿态转换过程中水冷壁超温问题，改善了水冷壁的运行工况。

关键词: 火电厂, 超超临界机组, 双切圆锅炉, 干湿态转换, 水冷壁, 超温, 热偏差

Abstract: Aiming at the problems of water-wall overheating and large temperature deviations of the ultra-supercritical dual tangential circle boiler in the wet-dry transferring period, a three-stage control measure is adopted. Prior to the wet-dry transferring, the upper mills are put into operation to increase the boiler pressure and the feeding water temperature. During the transferring, an appropriate water/coal ratio and a superheating degree are settled and maintained. During the routine operation, the flame height should be kept as high as possible to improve the heat uniformity and the primary and secondary air distributions are adjusted to lower the "hot corner" temperature. In addition, the orifice plates of the overheated water-wall tubes are removed to increase the mass velocity. The results show that this measure has effectively alleviated the overheating of the water-wall and improved the water-wall operation conditions.

Key words: thermal power plant, ultra-supercritical unit, dual tangential circle boiler, wet-dry transferring, water-wall, overheating, thermal deviation

中图分类号:

TM621.27

王亚欧, 陶谦, 肖杰, 陈波. 1 000 MW双切圆燃烧锅炉干湿态转换过程中水冷壁温度控制[J]. 中国电力, 2019, 52(1): 161-165,173.

WANG Ya'ou, TAO Qian, XIAO Jie, CHEN Bo. Water-Wall Temperature Control of a 1 000 MW Dual Circle Tangential Firing Boiler during Wet-Dry Transferring Period[J]. Electric Power, 2019, 52(1): 161-165,173.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201808048

https://www.electricpower.com.cn/CN/Y2019/V52/I1/161

参考文献 11

[1]	乌若思. 超超临界发电研究与应用[J]. 中国电力, 2006, 39(6):34-37 WU Ruosi. Research and application of ultra supercritical power generation technology in China[J]. Electric Power, 2006, 39(6):34-37
[2]	王宝华. 超超临界直流锅炉垂直上升管圈水动力特性探讨[J]. 锅炉技术, 2008, 39(5):5-8 WANG Baohua. Investigation on the vertical upward water wall hydrodynamic behavior of a 1000 MW ultra-supercritical once-through boiler[J]. Boiler Technology, 2008, 39(5):5-8
[3]	叶江明. 锅炉原理[M]. 北京:中国电力出版社, 2010.
[4]	崔鹏. 超超临界锅炉垂直管屏水冷壁流动特性研究[D]. 保定:华北电力大学, 2009.
[5]	车东光, 吴少华. 超超临界锅炉水冷壁传热特性和温度偏差[J]. 锅炉制造, 2006(2):2-5 CHE Dongguang, WU Shaohua. The heat transfer characteristic and temperature deviation of supercritical boiler water wall[J]. Boiler Manufacturing, 2006(2):2-5
[6]	樊泉桂. 超临界锅炉水冷壁工质温度的控制[J]. 动力工程, 2006, 26(1):39-41 FAN Quangui. Control of working medium's temperature within water walls of supercritical boilers[J]. Journal of Power Engineering, 2006, 26(1):39-41
[7]	左帅, 张峰, 周波. 1000 MW超超临界锅炉机组冷态启动时水冷壁超温的探讨[J]. 中国电力, 2011, 44(5):60-63 ZUO Shuai, ZHANG Feng, ZHOU Bo. Over-temperature problem of water-wall in 1000 MW ultra-supercritical boiler during cold start-up[J]. Electric Power, 2011, 44(5):60-63
[8]	郑建学, 陈听宽, 吴履琛, 等. 高压汽水两相流内螺纹管壁温与临界热负荷特性的研究[J]. 西安交通大学学报, 1995, 29(5):64-68 ZHENG Jianxue, CHEN Tingkuan, WU Lvchen, et al. Investigation on the tube wall temperature and critical heat flux for high pressure steam-water two-phase flow in internally ribbed tubes[J]. Journal of Xi'an Jiaotong University, 1995, 29(5):64-68
[9]	汪华剑, 周虹光, 王洋, 等. 1000 MW垂直管圈超超临界锅炉水冷壁工质相变转换对金属壁温影响的试验研究[J]. 锅炉技术, 2017, 48(6):13-18 WANG Huajian, ZHOU Hongguang, WANG Yang, et al. Experimental study on influence of working medium phase change on mental temperature of water wall tube in a 1000 MW ultra supercritical vertical water wall boiler[J]. Boiler Technology, 2017, 48(6):13-18
[10]	刘建全, 孙保民, 胡永生, 等. 某1000 MW超超临界双切圆锅炉燃烧特性的数值模拟与优化[J]. 中国电机工程学报, 2012, 32(20):35-40 LIU Jianquan, SUN Baomin, HU Yongsheng, et al. Numerical simulation and optimization on combustion of a 1000 MW ultra supercritical dual tangential circle boiler[J]. Proceedings of the CSEE, 2012, 32(20):35-40
[11]	王运民, 周永强, 明勇. 电厂锅炉制粉系统优化调整试验[J]. 中国电力, 2011, 44(3):34-38 WANG Yunmin, ZHOU Yongqiang, MING Yong. Optimized adjustment experiments on pulverizing system in power plant[J]. Electric Power, 2011, 44(3):34-38

[1]	刘习文, 彭卓寅, 胡新强, 叶泽, 何会学, 蔡睿, 魏文博. 燃煤火电厂年度燃料成本最小化决策模型及应用[J]. 中国电力, 2022, 55(6): 202-207.
[2]	晏敏, 张杨, 郭博闻, 朱跃. 基于全寿命周期成本的SCR脱硝系统优化分析[J]. 中国电力, 2021, 54(3): 191-196.
[3]	杨阳, 胡大龙, 黄倩, 许臻, 王璟, 吴火强, 王博. 火电厂废水排放控制政策法规与技术路线综述[J]. 中国电力, 2020, 53(8): 131-138.
[4]	邓宇强, 齐佶, 王启亮, 祁东东, 宋飞, 李海洋, 程家庆, 王冬梅, 马彦斌. 停用保护剂对锅炉启停期间水汽中TOCi的影响研究[J]. 中国电力, 2020, 53(6): 161-165,196.
[5]	王霂晗, 朱林, 张晶杰, 杨帆. 欧盟火电厂二氧化碳排放在线监测系统质量保证体系对中国的启示[J]. 中国电力, 2020, 53(3): 154-158,176.
[6]	王渡, 刘玉贤, 万明元, 赵思维, 江剑明. 660 MW超超临界机组循环水泵配置及运行方式优化[J]. 中国电力, 2020, 53(2): 112-119.
[7]	王洋, 朱晓昕, 陈铭, 汪华剑, 房凡, 朱伟建. 低负荷吹灰对超临界锅炉水冷壁超温影响的试验研究[J]. 中国电力, 2020, 53(11): 227-233.
[8]	唐伟峰, 张佳琦, 李飞. 无磷阻垢剂WS330海水循环冷却阻垢试验研究[J]. 中国电力, 2019, 52(9): 161-166,178.
[9]	赵秀勇, 朱法华, 王圣, 孙雪丽, 徐静馨. 江苏省火电超低排放对环境空气中PM_2.5质量浓度影响模拟研究[J]. 中国电力, 2019, 52(9): 167-172.
[10]	李昊燃, 徐永峰, 马翔. 大型电站烟风管道节能优化及工程应用[J]. 中国电力, 2019, 52(7): 123-131.
[11]	张金营, 孙蓟光. 基于控制受限MIMO预测控制的超超临界机组集中式协调控制[J]. 中国电力, 2019, 52(5): 21-28.
[12]	段旭晨, 彭道刚, 姚峻, 赵慧荣, 夏飞. 基于SA-PSO-AHP的火电厂控制系统信息安全威胁评估[J]. 中国电力, 2019, 52(5): 29-35.
[13]	庞乐, 赵玉柱, 张帅, 李鹏. 加装低压省煤器对汽轮机排汽量的影响研究[J]. 中国电力, 2019, 52(4): 133-137.
[14]	韩超, 马欣欣, 沈维春, 董士波, 王秀娜, 曹旭, 徐剑锋. 智慧安全系统在火电厂中的应用研究[J]. 中国电力, 2019, 52(3): 127-132.
[15]	李玉宇, 吴火强, 余伟权, 毛进, 连坤宙. 珠海电厂精处理系统再生废水综合利用改造方案[J]. 中国电力, 2019, 52(3): 140-145.

1 000 MW双切圆燃烧锅炉干湿态转换过程中水冷壁温度控制

Water-Wall Temperature Control of a 1 000 MW Dual Circle Tangential Firing Boiler during Wet-Dry Transferring Period

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 11

相关文章 15

编辑推荐

Metrics

模态框（Modal）标题

1 000 MW双切圆燃烧锅炉干湿态转换过程中水冷壁温度控制

Water-Wall Temperature Control of a 1 000 MW Dual Circle Tangential Firing Boiler during Wet-Dry Transferring Period

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献 11

相关文章 15

编辑推荐

Metrics