基于煤粉流速测量的燃烧控制系统分析和优化设计

doi:10.11930/j.issn.1004-9649.2016.01.028.05

中国电力 ›› 2016, Vol. 49 ›› Issue (1): 28-32.DOI: 10.11930/j.issn.1004-9649.2016.01.028.05

基于煤粉流速测量的燃烧控制系统分析和优化设计

郑伟¹，²，王超¹，赵猛³，张伟伟³

1.天津大学电气与自动化工程学院天津市过程检测与控制重点实验室，天津 300072；
2. 天津职业大学机电工程与自动化学院，天津 300410；
3. 天津华能杨柳青热电有限责任公司，天津 300380

收稿日期:2015-11-25 出版日期:2016-01-18 发布日期:2016-02-04
作者简介:郑伟（1983—），男，天津人，博士研究生，从事多相流测量、系统辨识、数据挖掘和计算机控制系统的研究。
基金资助:
天津职业大学培养项目（20141102）

Analysis and Optimization Design of Combustion Control System Based on Coal Particle Velocity Measurement

ZHENG Wei¹,², WANG Chao¹, ZHAO Meng³, ZHANG Weiwei³

1. Tianjin Key Laboratory of Process Measurement and Control, School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China;
2. School of Mechatronical Engineering and Automation, Tianjin Vocational Institute, Tianjin 300410, China;
3. Tianjin Huaneng Yangliuqing Thermo Power Co., Ltd., Tianjin 300380, China

Received:2015-11-25 Online:2016-01-18 Published:2016-02-04
Supported by:
This work is supported by Cultivation Project of Tianjin Vocational Institute (No. 20141102).

摘要/Abstract

摘要： 目前诸多燃煤电站锅炉运行均存在燃烧不稳、燃烧效率低甚至锅炉泄漏等现象，这些现象均与煤粉管道中煤粉流速有直接关系。为了准确测量煤粉流速，探明煤粉流速对锅炉燃烧的影响规律，以某燃煤电厂中一台磨煤机为实验平台，在其2号和3号煤粉管道上安装了基于静电法和相关测速原理的静电传感器，来测量煤粉流速。通过对测量数据的分析，以及与DCS火检监视系统相关参数的对比，验证了各煤粉管道间煤粉流速的失衡，也说明了不同煤粉流速对锅炉燃烧的影响。最后，提出了基于煤粉流速的燃烧控制和优化方案。

关键词: 火力发电, 气固两相流, 静电传感器, 相关测速, 燃烧优化

Abstract: Currently in the boiler operation of coal-fired power plants, there exist some common problems such as unstable combustion, low combustion efficiency and even boiler leakage, which are all directly related to the coal particle velocity in the pipeline. In order to measure the coal particle velocity accurately and explore the relationship between the velocity and boiler combustion, taking the coal mill in a power plant as the test platform, two electrostatic sensors based on electrostatic method and correlation velocity measurement theory are installed on Pipes 2 and 3 to measure the velocity. Through the analysis on the measurement data and the comparison with those from the boiler combustion monitoring system in DCS, the imbalance between the particle velocities in the coal pipes is observed and the impact of coal particle velocities on boiler combustion is also verified. At last, the combustion control and optimization scheme based on coal particle velocity measurement is proposed.

Key words: thermal power generation, gas-solid two-phase flow, electrostatic sensor, correlation velocity measurement, combustion optimization

中图分类号:

TM621
TM611

郑伟,王超，赵猛，张伟伟. 基于煤粉流速测量的燃烧控制系统分析和优化设计[J]. 中国电力, 2016, 49(1): 28-32.

ZHENG Wei, WANG Chao, ZHAO Meng, ZHANG Weiwei. Analysis and Optimization Design of Combustion Control System Based on Coal Particle Velocity Measurement[J]. Electric Power, 2016, 49(1): 28-32.

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https://www.electricpower.com.cn/CN/Y2016/V49/I1/28

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基于煤粉流速测量的燃烧控制系统分析和优化设计

Analysis and Optimization Design of Combustion Control System Based on Coal Particle Velocity Measurement

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基于煤粉流速测量的燃烧控制系统分析和优化设计

Analysis and Optimization Design of Combustion Control System Based on Coal Particle Velocity Measurement

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