Article(id=1221425789699019075, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202205087, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1652284800000, receivedDateStr=2022-05-12, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769140201258, onlineDateStr=2026-01-23, pubDate=1674576000000, pubDateStr=2023-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769140201258, onlineIssueDateStr=2026-01-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769140201258, creator=13701087609, updateTime=1769140201258, updator=13701087609, issue=Issue{id=1221425781750808678, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='1', pageStart='1', pageEnd='182', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769140199363, creator=13701087609, updateTime=1769145231708, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1221446888994292213, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1221446888994292214, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=83, endPage=88, ext={EN=ArticleExt(id=1221425792299487643, articleId=1221425789699019075, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Research on optimal operation condition of feed water in (ultra) supercritical units, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=

With high power generation efficiency and low carbon emission, (ultra) supercritical unit is the main type in China's development of thermal power units. Optimization on feed water operating condition of the (ultra) supercritical unit is of great guiding significance. The optimal control indexes of different feed water operating conditions of (ultra) supercritical units are investigated by in-situ sampling test, and the influence of centralized sampling on feed water quality is researched. Moreover, the intelligent control system for feed water operating condition is developed. The results show that, the optimal target value of feed water conductivity is 6.7 μS/cm under AVT(O) condition, the optimal target value of feed water dissolved oxygen is 15 μg/L and the optimal target value of feed water conductivity is 3.0 μS/cm under OT condition. Long sampling pipeline of feed water will cause the deposition of iron corrosion products, and interfere with the judgment of unit corrosion. The chromates produced by adding oxygen to feed water is only related to the oxidation of the sampling tube and has nothing to do with the water vapor system.

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超(超)临界机组发电效率高,碳排放低,是我国火电机组发展的主力,对其给水运行工况进行优化具有重要指导意义。通过就地取样试验研究了超(超)临界机组不同给水运行工况的最优控制指标,研究了给水取样间集中取样对给水水质的影响,开发了给水运行工况智能化控制系统。结果表明:AVT(O)工况下给水电导率的最优目标值为6.7 μS/cm,OT工况下给水氧质量浓度的最优目标值为15 μg/L,给水电导率的最优目标值为3.0 μS/cm;较长的给水取样管路会造成铁腐蚀产物的沉积,干扰对机组腐蚀情况的判断;给水加氧产生的铬酸根离子只与取样管的氧化溶出有关,与水汽系统无关。

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孟龙(1989),男,硕士,高级工程师,主要研究方向为电厂腐蚀与防护技术,

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孟龙(1989),男,硕士,高级工程师,主要研究方向为电厂腐蚀与防护技术,

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孟龙(1989),男,硕士,高级工程师,主要研究方向为电厂腐蚀与防护技术,

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超(超)临界机组给水最优运行工况研究
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孟龙 1 , 李俊菀 1 , 龙国军 1 , 王亮 2 , 陈俊楠 3 , 赵晓林 2 , 贾兰 3 , 王宁飞 1
热力发电 | 热能科学研究 2023,52(1): 83-88
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热力发电 | 热能科学研究 2023, 52(1): 83-88
超(超)临界机组给水最优运行工况研究
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孟龙1 , 李俊菀1, 龙国军1, 王亮2, 陈俊楠3, 赵晓林2, 贾兰3, 王宁飞1
作者信息
  • 1.西安热工研究院有限公司,陕西 西安 710032
  • 2.安徽华电宿州发电有限公司,安徽 宿州 234101
  • 3.国能宁东第一发电有限公司,宁夏 灵武 750408
  • 孟龙(1989),男,硕士,高级工程师,主要研究方向为电厂腐蚀与防护技术,

Research on optimal operation condition of feed water in (ultra) supercritical units
Long MENG1 , Junwan LI1, Guojun LONG1, Liang WANG2, Junnan CHEN3, Xiaolin ZHAO2, Lan JIA3, Ningfei WANG1
Affiliations
  • 1.Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710032, China
  • 2.Huadian Suzhou Power Generation Co., Ltd., Suzhou 234101, China
  • 3.Guoneng Ningdong No.1 Power Generation Co., Ltd., Lingwu 750408, China
出版时间: 2023-01-25 doi: 10.19666/j.rlfd.202205087
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超(超)临界机组发电效率高,碳排放低,是我国火电机组发展的主力,对其给水运行工况进行优化具有重要指导意义。通过就地取样试验研究了超(超)临界机组不同给水运行工况的最优控制指标,研究了给水取样间集中取样对给水水质的影响,开发了给水运行工况智能化控制系统。结果表明:AVT(O)工况下给水电导率的最优目标值为6.7 μS/cm,OT工况下给水氧质量浓度的最优目标值为15 μg/L,给水电导率的最优目标值为3.0 μS/cm;较长的给水取样管路会造成铁腐蚀产物的沉积,干扰对机组腐蚀情况的判断;给水加氧产生的铬酸根离子只与取样管的氧化溶出有关,与水汽系统无关。

给水  /  就地取样  /  AVT(O)  /  OT

With high power generation efficiency and low carbon emission, (ultra) supercritical unit is the main type in China's development of thermal power units. Optimization on feed water operating condition of the (ultra) supercritical unit is of great guiding significance. The optimal control indexes of different feed water operating conditions of (ultra) supercritical units are investigated by in-situ sampling test, and the influence of centralized sampling on feed water quality is researched. Moreover, the intelligent control system for feed water operating condition is developed. The results show that, the optimal target value of feed water conductivity is 6.7 μS/cm under AVT(O) condition, the optimal target value of feed water dissolved oxygen is 15 μg/L and the optimal target value of feed water conductivity is 3.0 μS/cm under OT condition. Long sampling pipeline of feed water will cause the deposition of iron corrosion products, and interfere with the judgment of unit corrosion. The chromates produced by adding oxygen to feed water is only related to the oxidation of the sampling tube and has nothing to do with the water vapor system.

feed water  /  in-situ sampling  /  AVT(O)  /  OT
孟龙, 李俊菀, 龙国军, 王亮, 陈俊楠, 赵晓林, 贾兰, 王宁飞. 超(超)临界机组给水最优运行工况研究. 热力发电, 2023 , 52 (1) : 83 -88 . DOI: 10.19666/j.rlfd.202205087
Long MENG, Junwan LI, Guojun LONG, Liang WANG, Junnan CHEN, Xiaolin ZHAO, Lan JIA, Ningfei WANG. Research on optimal operation condition of feed water in (ultra) supercritical units[J]. Thermal Power Generation, 2023 , 52 (1) : 83 -88 . DOI: 10.19666/j.rlfd.202205087
2023年第52卷第1期
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doi: 10.19666/j.rlfd.202205087
  • 接收时间:2022-05-12
  • 首发时间:2026-01-23
  • 出版时间:2023-01-25
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  • 收稿日期:2022-05-12
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    1.西安热工研究院有限公司,陕西 西安 710032
    2.安徽华电宿州发电有限公司,安徽 宿州 234101
    3.国能宁东第一发电有限公司,宁夏 灵武 750408
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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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