Article(id=1222488507214451227, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222488501866713569, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202301014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1672761600000, receivedDateStr=2023-01-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769393572857, onlineDateStr=2026-01-26, pubDate=1690214400000, pubDateStr=2023-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769393572857, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769393572857, creator=13701087609, updateTime=1769393572857, updator=13701087609, issue=Issue{id=1222488501866713569, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='7', pageStart='1', pageEnd='199', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769393571583, creator=13701087609, updateTime=1769393973240, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222490186634743828, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222488501866713569, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222490186634743829, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1222488501866713569, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=181, endPage=190, ext={EN=ArticleExt(id=1222488507549995556, articleId=1222488507214451227, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Analysis on types and effects of deposits in boiler tubes of thermal power unit, columnId=1222488502818820580, journalTitle=Thermal Power Generation, columnName=Blending and combustion optimization technologies for coal-fired power plants, runingTitle=null, highlight=null, articleAbstract=

The failure of boiler tubes in thermal power units will cause non shutdown of units and greater economic losses. Deposits in boiler tubes are an important reason for their failure, and reducing deposits in boiler tubes is of great significance to the safe and stable operation of units. It is found that the formation of deposits is related to many factors, such as overheating of furnace tubes, high heat load, poor water vapor quality, water vapor phase transition, working medium disturbance and pipe surface defects. Combined with the flexibility of units, deep peak shaving operation, environmental protection reform and other conditions, the formation mechanism and influencing factors of various types of deposits are analyzed with actual accident case pictures. The effects of overheating, salt concentration and corrosion under scale caused by deposits in furnace tubes are further discussed. The countermeasures for feedwater quality, boiler shutdown protection, unit startup steam purification, unit peak shaving, boiler tube replacement, boiler transformation and maintenance are proposed, which can effectively reduce the generation of boiler heating surface deposits and reduce the risk of boiler tube failure.

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火电机组锅炉炉管失效爆管,会造成机组非停和一定的经济损失。炉管内沉积物是其失效的重要原因,减少炉管内沉积物的产生对机组的安全稳定运行具有重大意义。研究发现,沉积物的形成与炉管过热、高热负荷、水汽品质不佳、出现水汽相变、工质扰动和管材表面缺陷等多种因素有关。结合目前机组灵活性和深度调峰运行、环保改造等情况,用实际沉积物事故案例对各种类型沉积物的形成机理和影响因素进行了分析;进一步论述了炉管内沉积物带来的过热、盐类富集浓缩和对垢下腐蚀的影响;提出了对给水水质、停炉保护、机组启动水汽净化、机组调峰、锅炉换管、锅炉改造和检修时的应对措施,以有效减少锅炉受热面沉积物的产生和降低锅炉炉管失效的风险。

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滕维忠(1965),男,正高级工程师,主要研究方向为发电厂化学监督技术,

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滕维忠(1965),男,正高级工程师,主要研究方向为发电厂化学监督技术,

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滕维忠(1965),男,正高级工程师,主要研究方向为发电厂化学监督技术,

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火电机组锅炉炉管沉积物类型和影响分析
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滕维忠 1 , 郭俊文 1 , 刘炎伟 1 , 邓彪 2 , 林崴 2 , 秦建柱 2 , 郭上科 2 , 曹志刚 2 , 黄俊谐 2 , 伊朝品 2 , 黄修喜 2
热力发电 | 燃煤电站掺烧及燃烧优化技术 2023,52(7): 181-190
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热力发电 | 燃煤电站掺烧及燃烧优化技术 2023, 52(7): 181-190
火电机组锅炉炉管沉积物类型和影响分析
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滕维忠1 , 郭俊文1, 刘炎伟1, 邓彪2, 林崴2, 秦建柱2, 郭上科2, 曹志刚2, 黄俊谐2, 伊朝品2, 黄修喜2
作者信息
  • 1.西安热工研究院有限公司,陕西 西安 710054
  • 2.华能海南发电股份有限公司东方电厂,海南 东方 572600
  • 滕维忠(1965),男,正高级工程师,主要研究方向为发电厂化学监督技术,

Analysis on types and effects of deposits in boiler tubes of thermal power unit
Weizhong TENG1 , Junwen GUO1, Yanwei LIU1, Biao DENG2, Wei LIN2, Jianzhu QIN2, Shangke GUO2, Zhigang CAO2, Junxie HUANG2, Chaopin YI2, Xiuxi HUANG2
Affiliations
  • 1.Xi'an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
  • 2.Dongfang Power Plant of Huaneng Hainan Power Generation Co., Ltd., Dongfang 572600, China
出版时间: 2023-07-25 doi: 10.19666/j.rlfd.202301014
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火电机组锅炉炉管失效爆管,会造成机组非停和一定的经济损失。炉管内沉积物是其失效的重要原因,减少炉管内沉积物的产生对机组的安全稳定运行具有重大意义。研究发现,沉积物的形成与炉管过热、高热负荷、水汽品质不佳、出现水汽相变、工质扰动和管材表面缺陷等多种因素有关。结合目前机组灵活性和深度调峰运行、环保改造等情况,用实际沉积物事故案例对各种类型沉积物的形成机理和影响因素进行了分析;进一步论述了炉管内沉积物带来的过热、盐类富集浓缩和对垢下腐蚀的影响;提出了对给水水质、停炉保护、机组启动水汽净化、机组调峰、锅炉换管、锅炉改造和检修时的应对措施,以有效减少锅炉受热面沉积物的产生和降低锅炉炉管失效的风险。

炉管失效  /  沉积物  /  热负荷  /  水汽品质  /  流体状态

The failure of boiler tubes in thermal power units will cause non shutdown of units and greater economic losses. Deposits in boiler tubes are an important reason for their failure, and reducing deposits in boiler tubes is of great significance to the safe and stable operation of units. It is found that the formation of deposits is related to many factors, such as overheating of furnace tubes, high heat load, poor water vapor quality, water vapor phase transition, working medium disturbance and pipe surface defects. Combined with the flexibility of units, deep peak shaving operation, environmental protection reform and other conditions, the formation mechanism and influencing factors of various types of deposits are analyzed with actual accident case pictures. The effects of overheating, salt concentration and corrosion under scale caused by deposits in furnace tubes are further discussed. The countermeasures for feedwater quality, boiler shutdown protection, unit startup steam purification, unit peak shaving, boiler tube replacement, boiler transformation and maintenance are proposed, which can effectively reduce the generation of boiler heating surface deposits and reduce the risk of boiler tube failure.

boiler tube failure  /  deposits  /  thermal load  /  water and steam quality  /  fluid state
滕维忠, 郭俊文, 刘炎伟, 邓彪, 林崴, 秦建柱, 郭上科, 曹志刚, 黄俊谐, 伊朝品, 黄修喜. 火电机组锅炉炉管沉积物类型和影响分析. 热力发电, 2023 , 52 (7) : 181 -190 . DOI: 10.19666/j.rlfd.202301014
Weizhong TENG, Junwen GUO, Yanwei LIU, Biao DENG, Wei LIN, Jianzhu QIN, Shangke GUO, Zhigang CAO, Junxie HUANG, Chaopin YI, Xiuxi HUANG. Analysis on types and effects of deposits in boiler tubes of thermal power unit[J]. Thermal Power Generation, 2023 , 52 (7) : 181 -190 . DOI: 10.19666/j.rlfd.202301014
  • 中国华能集团有限公司总部科技项目(HNKJ21-HF201)
2023年第52卷第7期
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doi: 10.19666/j.rlfd.202301014
  • 接收时间:2023-01-04
  • 首发时间:2026-01-26
  • 出版时间:2023-07-25
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  • 收稿日期:2023-01-04
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Science and Technology Project of China Huaneng Group Co., Ltd.(HNKJ21-HF201)
中国华能集团有限公司总部科技项目(HNKJ21-HF201)
作者信息
    1.西安热工研究院有限公司,陕西 西安 710054
    2.华能海南发电股份有限公司东方电厂,海南 东方 572600
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2种不同金属材料的力学参数

Family
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Number of
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种数
Number of
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Genus
种数
Number of
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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