基于先进检测的锅炉低负荷安全运行控制系统

doi:10.16265/j.cnki.issn1003-3033.2022.S2.0188

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (S2): 94-99.doi: 10.16265/j.cnki.issn1003-3033.2022.S2.0188

基于先进检测的锅炉低负荷安全运行控制系统

付昱¹(), 何金起²^,^**(), 林锴翔³

¹ 国电电力发展股份有限公司生产技术部, 北京 100101
² 国能太仓发电有限公司, 江苏苏州 215400
³ 华北电力大学控制与计算机工程学院, 北京 102206

收稿日期:2022-08-09 修回日期:2022-10-15 出版日期:2022-12-30 发布日期:2023-06-30
通讯作者: ** 何金起(1985—),男,黑龙江哈尔滨人,硕士,主要从事发电行业安全技术、生产技术工作。E-mail:16188257@ceic.com。
作者简介:
付昱 (1973—),男,黑龙江双鸭山人,硕士,高级工程师,主要从事发电行业安全技术、生产技术方面的工作。E-mail:10000298@ceic.com。

Safety operation control system for boilers under low load based on advanced detection

FU Yu¹(), HE Jinqi²^,^**(), LIN Kaixiang³

¹ Production Technology Department, GD Power Development Co., Ltd., Beijing 100101, China
² Guoneng Taicang Power Generation Co., Ltd., Suzhou Jiangsu 215400, Chinaa
³ School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China

Received:2022-08-09 Revised:2022-10-15 Online:2022-12-30 Published:2023-06-30

摘要/Abstract

摘要：

为解决锅炉低负荷工况下运行存在的燃烧不稳定、水动力、受热面结焦、爆管、空预器堵塞等问题,基于新能源并网比例不断增加、火电厂深调能力要求越来越高的现状,结合当前大部分电厂存在的运行技术的不足,设计一种锅炉低负荷安全运行控制系统,采用低负荷燃烧稳定性定量检测、燃烧器风粉流动参数精细监测等先进检测技术,构建锅炉燃烧精细化检测与智能化控制系统,为燃烧安全问题提供完整的解决方案。结果表明:锅炉低负荷安全运行控制系统能够实现锅炉20%~30%负荷下不投油稳定燃烧;通过精细控制,可实现20%~100%宽负荷锅炉效率和排放的最优控制,比应用锅炉低负荷安全运行控制系统前煤耗平均下降1.5~2.0 g/(kW·h)。

关键词: 先进检测, 锅炉低负荷, 安全运行控制系统, 深度调峰, 稳定燃烧, 智能控制

Abstract:

When a boiler worked under a low load, there were unstable combustion, hydrodynamic force, heating surface coking, pipe burst, air preheater blockage, and other problems. In order to solve these problems, a safety operation control system for boilers under low load was designed. The system was developed by considering the increasing proportion of new energy connected to the grid and the high requirements for in-depth peak regulation capacity of thermal power plants. The shortcomings of operating technologies in most power plants were also analyzed. Furthermore, advanced detection technologies such as quantitative detection of combustion stability under low load and fine monitoring of air-powder flow parameters of burner were adopted. A system ensuring refined detection and intelligent control for boiler combustion was constructed, which provided a solution to the combustion safety problem. The results show that safety operation control system for boilers under low load realizes the stable combustion under 20%-30% load of boilers without oil. In addition, the optimal control of efficiency and emission of 20%-100% wide-load boilers is realized through fine control. As a result, the average coal consumption is reduced by 1.5-2.0 g/(kW·h) after the application of the safety operation control system for boilers under low load.

Key words: advanced detection, boilers under low load, safety operation control system, in-depth peak regulation, stable combustion, intelligent control

付昱, 何金起, 林锴翔. 基于先进检测的锅炉低负荷安全运行控制系统[J]. 中国安全科学学报, 2022, 32(S2): 94-99.

FU Yu, HE Jinqi, LIN Kaixiang. Safety operation control system for boilers under low load based on advanced detection[J]. China Safety Science Journal, 2022, 32(S2): 94-99.

图/表 5

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基于先进检测的锅炉低负荷安全运行控制系统

Safety operation control system for boilers under low load based on advanced detection

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