基于空冷岛性能在线监测的风机优化调节

doi:10.11930/j.issn.1004-9649.201803069

中国电力 ›› 2018, Vol. 51 ›› Issue (8): 154-161.DOI: 10.11930/j.issn.1004-9649.201803069

基于空冷岛性能在线监测的风机优化调节

王河¹, 李跃东¹, 秦志国¹, 尹晓晖², 马素霞², 王芳², 张嘉杰²

1. 国电电力大同发电有限责任公司, 山西大同 037043;
2. 太原理工大学电气与动力工程学院, 山西太原 030024

收稿日期:2018-03-12 修回日期:2018-04-22 出版日期:2018-08-05 发布日期:2018-11-01
作者简介:王河(1966-),男,高级工程师,从事火电厂节能技术研究,E-mail:wanghe@sp-dt.com
基金资助:
山西省煤基重点科技攻关项目（MD2014-07）。

Optimization and Regulation of Fans Based on Online Monitoring of Air-Cooled Island

WANG He¹, LI Yuedong¹, QIN Zhiguo¹, YIN Xiaohui², MA Suxia², WANG Fang², ZHANG Jiajie²

1. Guodian Power Datong Generation Co., Ltd., Datong 037043, China;
2. School of Electrical and Dynamic Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Received:2018-03-12 Revised:2018-04-22 Online:2018-08-05 Published:2018-11-01
Supported by:
This work is supported by Research Fund of Shanxi Coal-Based Key Scientific and Technological Project (No. MD2014-07).

摘要/Abstract

摘要： 空冷岛作为空冷发电机组的冷端，其性能优化对提高机组运行经济性、实现电厂节能意义重大。针对某 600 MW 亚临界直接空冷机组，建立冷端系统优化模型，采用等效热降法，在线计算机组实时最佳背压。通过建立空冷岛状态性能监测系统，实现对凝结水过冷度和清洁因子的在线监测，并依据监测结果，对空冷岛各台风机运行频率实施优化微调，实现空冷岛基于在线监测的性能深度优化。本冷端在线监测和优化运行技术已应用在该 600 MW 空冷机组，取得了良好的经济效益，为空冷机组冷端优化运行和智慧电厂建设运行提供了参考。

关键词: 燃煤电厂, 直接空冷机组, 智能发电, 汽轮机, 空冷岛, 等效热降, 实时最佳背压, 状态性能, 在线监测

Abstract: As the air-cooled island is the cold-end of the air-cooled generator, its performance optimization is of great significance to improve the operation economy and reach the goal of the energy saving for the power plant. Taking a 600 MW subcritical direct air-cooled unit as the research object, the optimization calculation model of the cold-end system is established, and the equivalent heat drop method is used to calculate the optimal real-time back-pressure of the unit. Through the establishment of the air-cooled island state performance monitoring system, the condensate sub-cooling degree and cleaning factors is able to be monitored online. According to the monitoring results, the operation frequency of each fan on the air-cooled island is tuned precisely such that the online monitoring based in-depth optimization is performed for the performance of the air-cooled island. The online monitoring and optimization operation technology has been applied to the 600 MW air-cooled unit and has achieved good economic benefits, which can provide positive reference for the optimal operation of the cold-end of air-cooled units as well as the construction of smart power plant.

Key words: coal-fired power plant, direct air-cooled unit, smart power plant, steam turbine, air-cooled island, equivalent heat drop, real-time best back-pressure, state performance, online monitoring

中图分类号:

TK262

王河, 李跃东, 秦志国, 尹晓晖, 马素霞, 王芳, 张嘉杰. 基于空冷岛性能在线监测的风机优化调节[J]. 中国电力, 2018, 51(8): 154-161.

WANG He, LI Yuedong, QIN Zhiguo, YIN Xiaohui, MA Suxia, WANG Fang, ZHANG Jiajie. Optimization and Regulation of Fans Based on Online Monitoring of Air-Cooled Island[J]. Electric Power, 2018, 51(8): 154-161.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201803069

https://www.electricpower.com.cn/CN/Y2018/V51/I8/154

参考文献

[1] 高沛, 张学镭. 环境风对直接空冷凝汽器性能的影响及主导因素分析[J]. 中国电力, 2013, 46(11):113-118 GAO Pei, ZHANG Xuelei. Performance of direct air-cooled condenser under windy conditions and its influencing factors[J]. Electric Power, 2013, 46(11):113-118
[2] 周兰欣, 李卫华, 王勇, 等. 直接空冷机组运行特点分析及对策[J]. 电力建设, 2009, 30(4):56-60 ZHOU Lanxin, LI Weihua, WANG Yong, et al. Analysis to the running characteristics of the direct air-cooled units and the countermeasures[J]. Electric Power Construction, 2009, 30(4):56-60
[3] 付玉玲, 胡三高, 蔡巍, 等. 空冷机组主要技术经济指标的讨论[J]. 中国电力, 2005, 38(9):79-82 FU Yuling, HU Sangao, CAI Wei, et al. Discussion on the main technical and economic index of air cooling generating unit[J]. Electric Power, 2005, 38(9):79-82
[4] 丁立斌, 杜小铁, 刘叶丽. 火电机组冷端优化措施及效果[J]. 河北电力技术, 2013, 32(4):37-40 DING Libin, DU Xiaotie, LIU Yeli. Optimized measures and effect of cold end in thermal power units[J]. Hebei Electric Power, 2013, 32(4):37-40
[5] 赵洪滨, 曹岭. 直接空冷凝汽器理论最佳背压的研究[J]. 工程热物理学报, 2009, 30(11):1834-1836 ZHAO Hongbin, CAO Ling. Theoretical study on the optimal back-pressure of a direct air-cooled condenser[J]. Journal of Engineering Thermophysics, 2009, 30(11):1834-1836
[6] 郭民臣, 谢静岚, 李鹏. 变工况下直接空冷机组最佳真空的分析[J]. 动力工程学报, 2012, 32(7):542-546 GUO Minchen, XIE Jinglan, LI Peng. Analysis on optimum vacuum of direct air-cooled unit under variable working conditions[J]. Journal of Chinese Society of Power Engineering, 2012, 32(7):542-546
[7] 高建强, 陈冠兵, 薛楠楠. 直接空冷机组经济背压计算模型及其应用[J]. 动力工程学报, 2014, 34(2):153-154 GAO Jianqiang, CHEN Guanbing, XUE Nannan. Calculation model for economic back pressure of direct air-cooling unit and its application[J]. Journal of Chinese Society of Power Engineering, 2014, 34(2):153-154
[8] 翟永杰, 米路, 刘金龙. 直接空冷机组最佳背压计算方法及应用[J]. 动力工程学报, 2016, 36(7):575-582 ZHAI Yongjie, MI Lu, LIU Jinlong. Calculation method for optimum back pressure of direct air-cooling unit and its application[J]. Journal of Chinese Society of Power Engineering, 2016, 36(7):575-582
[9] 吕凯, 陈胜利, 荆涛, 等. 提高直接空冷机组夏季冷却性能技术分析[J]. 热力发电, 2016, 45(5):107-111 LYU Kai, CHEN Shengli, JING Tao, et al. Technical schemes of improving operation performance of direct air-cooling units in summer[J]. Thermal Power Generation, 2016, 45(5):107-111
[10] 严俊杰, 张春雨, 李秀云, 等. 直接空冷系统变工况特性的理论研究[J]. 热能动力工程, 2000, 15(90):601-603 YAN Junjie, ZHANG Chunyu, LI Xiuyun, et al. Theoretical research on the off-design performance of a direct air-cooled system[J]. Journal of Engineering for Thermal Energy and Power, 2000, 15(90):601-603
[11] 王丽, 张义江, 郭民臣, 等. 积灰及迎面风速对直接空冷机组性能的影响[J]. 中国电力, 2015, 48(2):21-25 WANG Li, ZHANG Yijiang, GUO Minchen, et al. Effects of ash deposition and face velocity on the performance of a direct air-cooling power unit[J]. Electric Power, 2015, 48(2):21-25
[12] 杜小泽, 杨立军, 金衍胜, 等. 火电站直接空冷凝汽器传热系数实验关联式[J]. 中国电机工程学报, 2008, 28(14):32-37 DU Xiaoze, YANG Lijun, JIN Yansheng, et al. Development of experimental correlation for heat transfer coefficient of direct air-cooled condenser in power plant[J]. Proceedings of the CSEE, 2008, 28(14):32-37
[13] 张学镭, 王金平, 陈海平. 环境风影响下直接空冷机组排汽压力的计算模型[J]. 中国电机工程学报, 2012, 32(23):40-47 ZHANG Xuelei, WANG Jinping, CHEN Haiping. A calculation model of exhaust pressure of direct air-cooled units considering the effect of environmental wind[J]. Proceedings of the CSEE, 2012, 32(23):40-47
[14] 孔珑. 流体力学[M]. 北京:高等教育出版社, 2003
[15] 韩中合, 郑庆宇, 吴智泉, 等. 1000 MW直接空冷凝汽器变工况研究[J]. 中国电力, 2012, 45(2):22-25 HAN Zhonghe, ZHENG Qingyu, WU Zhiquan, et al. Off-design characteristics of condenser in direct air-cooling 1000 MW unit[J]. Electric Power, 2012, 45(2):22-25
[16] 何川, 郭立君. 泵与风机[M]. 4版. 北京:中国电力出版社, 2008
[17] 李秀云, 严俊杰, 林万超. 用等效热降法确定排汽压力变化对机组经济性的影响[J]. 热能动力工程, 1999, 14(5):353-355 LI Xiuyun, YAN Junjie, LIN Wanchao. Determination of the impact on machine unit economic performance of exhaust steam pressure variation by an equivalent enthalpy drop method[J]. Journal of Engineering for Thermal Energy and Power, 1999, 14(5):353-355
[18] 曹丽华, 金建国, 李勇. 背压变化对汽轮机发电机组电功率影响的计算方法研究[J]. 汽轮机技术, 2006, 48(1):11-13 CAO Lihua, JIN Jianguo, LI Yong. Study on calculation method of the affection of back pressure to electric power of turbo-generation set[J]. Turbine Technology, 2006, 48(1):11-13
[19] 徐大懋, 柯严, 王世勇. 汽轮机功率背压特性的通用计算方法及应用[J]. 热能动力工程, 2010, 25(6):605-608 XU Damao, KE Yan, WANG Shiyong. Universal method for calculation the power/back-pressure characteristics of a steam turbine and its applications[J]. Journal of Engineering for Thermal Energy and Power, 2010, 25(6):605-608
[20] 杨海生, 郭江龙. 汽轮机背压修正曲线计算的简化方法[J]. 汽轮机技术, 2007, 49(1):32-34 YANG Haisheng, GUO Jianglong. A simplified method for calculation of LP turbine exhaust pressure correction curves[J]. Turbine Technology, 2007, 49(1):32-34
[21] 杨善让, 徐志明, 孙灵芳. 换热设备污垢与对策[M]. 2版. 北京:科学出版社, 2004:426-427

基于空冷岛性能在线监测的风机优化调节

Optimization and Regulation of Fans Based on Online Monitoring of Air-Cooled Island

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	刘含笑, 吴黎明, 赵琳, 于立元, 郦建国, 崔盈. 燃煤电厂湿式电除尘器减排及能效特性研究[J]. 中国电力, 2022, 55(5): 196-203.
[2]	李楠, 李松原, 尚学军, 郭博文, 李琳, 祖国强, 侯恺. 基于交叉比对的UHF-PD在线监测装置现场校验方法[J]. 中国电力, 2022, 55(4): 100-107.
[3]	朱永灿, 张鹏, 田毅, 黄新波. 变电设备在线监测技术中的同步采集触发方法对比分析[J]. 中国电力, 2022, 55(3): 64-73.
[4]	孙尊强, 郑成航, 周灿, 王圣, 马修元, 叶毅科. 燃煤电厂典型除尘器运行现状分析及优化[J]. 中国电力, 2022, 55(11): 194-201.
[5]	吴家玉, 莫华, 胡耘, 朱杰, 帅伟, 张晴, 姜岸. 京津冀及周边地区燃煤电厂煤场无组织颗粒物不同控制情景下时空变化特征[J]. 中国电力, 2021, 54(2): 182-189.
[6]	刘浩然, 周凯, 王昱皓, 李蓉, 傅尧, 饶显杰. 基于电磁耦合注入的电力电缆局部缺陷在线定位方法[J]. 中国电力, 2021, 54(12): 177-185,194.
[7]	阮莹, 叶行汶, 邓明锋, 王星, 杨林禹, 舒勤. 基于自适应VMD和A-SVD的MOA在线监测方法[J]. 中国电力, 2021, 54(10): 177-185.
[8]	赵宏, 张发捷, 马云龙, 马宝林, 唐潇, 徐仁博, 罗通达, 李成宝, 任传明, 于洁, 孙路石. 燃煤电厂SCR脱硝氨逃逸迁移规律试验研究[J]. 中国电力, 2021, 54(1): 196-202.
[9]	赵柄, 王海刚, 胡冬, 陈坤洋, 金绪良, 殷爱鸣. 燃煤电厂碱性吸附剂脱汞性能研究[J]. 中国电力, 2020, 53(9): 208-213.
[10]	何国安, 胡相余, 杨铖, 安仕江, 张学延. 轴承振动对油膜涡动的影响分析与试验[J]. 中国电力, 2020, 53(7): 211-216.
[11]	崔亚辉, 姚剑飞, 徐亚涛, 渠福来, 孙鹏, 王增宏. 西门子1 000 MW汽轮机组轴系碰磨故障特性研究[J]. 中国电力, 2020, 53(6): 133-139.
[12]	姚燕, 马云龙, 杨晓宁, 张华东, 王丽朋. 高砷煤SCR脱硝催化剂中毒失活研究[J]. 中国电力, 2020, 53(6): 191-196.
[13]	唐酿, 陶炳权, 曲皓玥, 胡妹林, 蔡昌松, 黄明欣. 基于GaN器件的高电压线路多米诺无线供电系统设计[J]. 中国电力, 2020, 53(5): 69-76.
[14]	马学礼, 孙希进, 苏燊燊, 张仁锋, 党立晨, 黄显昌, 谢永平. 基于超低排放的燃煤电厂烟囱高度优化研究[J]. 中国电力, 2020, 53(5): 179-184.
[15]	徐章福, 邓彤天, 钟晶亮, 王锁斌, 张世海. 汽轮机DEH转速控制模式下的节能优化[J]. 中国电力, 2020, 53(4): 186-192.

模态框（Modal）标题

基于空冷岛性能在线监测的风机优化调节

Optimization and Regulation of Fans Based on Online Monitoring of Air-Cooled Island

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics