Article(id=1222925284630847624, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222925278838513745, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221882, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1662652800000, receivedDateStr=2022-09-09, revisedDate=1665331200000, revisedDateStr=2022-10-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1769497708709, onlineDateStr=2026-01-27, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769497708709, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769497708709, creator=13701087609, updateTime=1769497708709, updator=13701087609, issue=Issue{id=1222925278838513745, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='2', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769497707328, creator=13701087609, updateTime=1769497707328, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=215, endPage=217, ext={EN=ArticleExt(id=1222925284962197647, articleId=1222925284630847624, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Treatment of Motor Spindle and Rotor Bracket Looseness in Baisha Hydropower Station, columnId=1222925284869922957, journalTitle=Water Resources and Power, columnName=ELECTROMECHANICS AND CONTROL ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

For the 1# bulb tubular unit of Baisha Hydropower Station, the prestress vanishment of the rotor bracket and hot sleeve of the spindle could results the scratching of the generator and the uneven air gap between stater and rotor, which generates the excessive unilateral magnetic pull. This problem may lead to a serious accident in runaway or load rejection conditions. According to the experiential and theoretical analysis, the solution points to the fastening connection by a pin arrangement between rotor bracket and main shaft. Consequently, the unit has been running steadily under various working conditions. As there are numerous large, medium and small units in China facing the similar problem, the treatment scheme and design calculation methods proposed in this paper could be considered as a typical solution reference.

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白沙水电站#1灯泡贯流式机组,因转子支架与主轴热套预应力消失而松动,造成定、转子刮碰,定、转子之间的气隙极不均匀导致单边磁拉力过大。可能会在飞逸工况和甩负荷工况下,酿成严重事故。根据经验和理论分析,采用在转子支架与主轴之间配置销钉的办法进行紧固联接。此后该机组一直稳定运行,且经历了各种工况考验。研究成果可供类似工程参考。

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郑吉斯(1985-),男,博士、工程师,研究方向为水处理、水利工程设备,E-mail:
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宁丽华(1965-),男,工程师,研究方向为水利工程设备,E-mail:

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宁丽华(1965-),男,工程师,研究方向为水利工程设备,E-mail:

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宁丽华(1965-),男,工程师,研究方向为水利工程设备,E-mail:

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白沙水电站电机主轴与转子支架松动的处理
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宁丽华 1 , 邵春兵 2 , 陈浩鑫 3 , 郑吉斯 3
水电能源科学 | 机电与控制工程 2023,41(2): 215-217
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水电能源科学 | 机电与控制工程 2023, 41(2): 215-217
白沙水电站电机主轴与转子支架松动的处理
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宁丽华1 , 邵春兵2, 陈浩鑫3, 郑吉斯3
作者信息
  • 1.四会市白沙水电站,广东 肇庆 526299
  • 2.江苏航天水力设备有限公司,江苏 扬州 225127
  • 3.深圳市恩莱吉能源科技有限公司,广东 深圳 518133
  • 宁丽华(1965-),男,工程师,研究方向为水利工程设备,E-mail:

通讯作者:

郑吉斯(1985-),男,博士、工程师,研究方向为水处理、水利工程设备,E-mail:
Treatment of Motor Spindle and Rotor Bracket Looseness in Baisha Hydropower Station
Li-hua NING1 , Chun-bing SHAO2, Hao-xin CHEN3, Ji-si ZHENG3
Affiliations
  • 1.Sihui Baisha Hydropower Station, Zhaoqing 526299, China
  • 2.Jiangsu Aerospace Hydraulic Equipment Co., LTD., Yangzhou 225127, China
  • 3.Shenzhen Energy Science and Technology, Shenzhen 518133, China
出版时间: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20221882
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白沙水电站#1灯泡贯流式机组,因转子支架与主轴热套预应力消失而松动,造成定、转子刮碰,定、转子之间的气隙极不均匀导致单边磁拉力过大。可能会在飞逸工况和甩负荷工况下,酿成严重事故。根据经验和理论分析,采用在转子支架与主轴之间配置销钉的办法进行紧固联接。此后该机组一直稳定运行,且经历了各种工况考验。研究成果可供类似工程参考。

转子支架  /  发电机主轴  /  热套过盈联接  /  强度校核  /  有限元分析

For the 1# bulb tubular unit of Baisha Hydropower Station, the prestress vanishment of the rotor bracket and hot sleeve of the spindle could results the scratching of the generator and the uneven air gap between stater and rotor, which generates the excessive unilateral magnetic pull. This problem may lead to a serious accident in runaway or load rejection conditions. According to the experiential and theoretical analysis, the solution points to the fastening connection by a pin arrangement between rotor bracket and main shaft. Consequently, the unit has been running steadily under various working conditions. As there are numerous large, medium and small units in China facing the similar problem, the treatment scheme and design calculation methods proposed in this paper could be considered as a typical solution reference.

rotor bracket  /  generator spindle  /  heat sleeve interference connection  /  strength check  /  finite element analysis
宁丽华, 邵春兵, 陈浩鑫, 郑吉斯. 白沙水电站电机主轴与转子支架松动的处理. 水电能源科学, 2023 , 41 (2) : 215 -217 . DOI: 10.20040/j.cnki.1000-7709.2023.20221882
Li-hua NING, Chun-bing SHAO, Hao-xin CHEN, Ji-si ZHENG. Treatment of Motor Spindle and Rotor Bracket Looseness in Baisha Hydropower Station[J]. Water Resources and Power, 2023 , 41 (2) : 215 -217 . DOI: 10.20040/j.cnki.1000-7709.2023.20221882
2023年第41卷第2期
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doi: 10.20040/j.cnki.1000-7709.2023.20221882
  • 接收时间:2022-09-09
  • 首发时间:2026-01-27
  • 出版时间:2023-02-25
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  • 收稿日期:2022-09-09
  • 修回日期:2022-10-10
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作者信息
    1.四会市白沙水电站,广东 肇庆 526299
    2.江苏航天水力设备有限公司,江苏 扬州 225127
    3.深圳市恩莱吉能源科技有限公司,广东 深圳 518133

通讯作者:

郑吉斯(1985-),男,博士、工程师,研究方向为水处理、水利工程设备,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
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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