Article(id=1223204289779192817, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222360, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1667923200000, receivedDateStr=2022-11-09, revisedDate=1668960000000, revisedDateStr=2022-11-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1769564228720, onlineDateStr=2026-01-28, pubDate=1684944000000, pubDateStr=2023-05-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769564228720, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769564228720, creator=13701087609, updateTime=1769564228720, updator=13701087609, issue=Issue{id=1223204286050452333, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='5', 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=1769564227831, creator=13701087609, updateTime=1769567742010, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219026013323264, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219026013323265, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223204286050452333, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=76, endPage=80, ext={EN=ArticleExt(id=1223204290978762846, articleId=1223204289779192817, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Study on Water Hammer Protection of Long-distance Pressurized Gravity Flow Water Conveyance Project, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

For the long-distance water supply project where the pump station pressurizes before the high point and gravity flows after the high point, when the end valve is closed in a straight line in case of power failure in an accident, a longer valve closing time is required to meet the pressure control standard, which virtually increases the scale of the protective measures and increases the investment. In order to solve this problem, a broken line valve closing rule is proposed to reduce the volume of protective measures while optimizing the pressure. The characteristic line method is used to check each scheme through FORTRAN programming, and the general rule is summarized by analyzing the influencing factors of the main parameters. The case results show that the broken line valve closing can reduce the volume of protective measures and reduce the project cost compared with the straight line valve closing within the same valve closing time under the premise of ensuring that the pressure meets the requirements.

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针对高点前泵站加压、高点后重力自流的长距离供水工程,事故掉电时末端阀门采用一段直线关闭,为了满足压力控制标准需较长的关阀时间无形中加大了防护措施的规模、增加了投资。为此,采用折线关阀规律,在优化压力的同时减少防护措施体积,采用特征线法通过FORTRAN编程对各方案进行验算,并针对主要参数进行影响因素分析。实例应用结果表明,在保证压力符合要求的前提下相同关阀时间内折线关阀相比于直线关阀可减少防护措施体积、降低工程造价。

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张健(1970-),男,博士、教授、博导,研究方向为长距离、跨流域泵站输配水系统的供水安全,E-mail:
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王开朗(1998-),男,硕士研究生,研究方向为长距离、跨流域泵站输配水系统的供水安全,E-mail:

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王开朗(1998-),男,硕士研究生,研究方向为长距离、跨流域泵站输配水系统的供水安全,E-mail:

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王开朗(1998-),男,硕士研究生,研究方向为长距离、跨流域泵站输配水系统的供水安全,E-mail:

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长距离加压重力流输水工程水锤防护研究
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王开朗 , 张健 , 姚天语 , 王燕
水电能源科学 | 水利水电工程 2023,41(5): 76-80
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水电能源科学 | 水利水电工程 2023, 41(5): 76-80
长距离加压重力流输水工程水锤防护研究
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王开朗 , 张健 , 姚天语, 王燕
作者信息
  • 河海大学水利水电学院,江苏 南京 210098
  • 王开朗(1998-),男,硕士研究生,研究方向为长距离、跨流域泵站输配水系统的供水安全,E-mail:

通讯作者:

张健(1970-),男,博士、教授、博导,研究方向为长距离、跨流域泵站输配水系统的供水安全,E-mail:
Study on Water Hammer Protection of Long-distance Pressurized Gravity Flow Water Conveyance Project
Kai-lang WANG , Jian ZHANG , Tian-yu YAO, Yan WANG
Affiliations
  • College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
出版时间: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20222360
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针对高点前泵站加压、高点后重力自流的长距离供水工程,事故掉电时末端阀门采用一段直线关闭,为了满足压力控制标准需较长的关阀时间无形中加大了防护措施的规模、增加了投资。为此,采用折线关阀规律,在优化压力的同时减少防护措施体积,采用特征线法通过FORTRAN编程对各方案进行验算,并针对主要参数进行影响因素分析。实例应用结果表明,在保证压力符合要求的前提下相同关阀时间内折线关阀相比于直线关阀可减少防护措施体积、降低工程造价。

长距离加压重力流  /  空气罐  /  高位水池  /  折线关阀

For the long-distance water supply project where the pump station pressurizes before the high point and gravity flows after the high point, when the end valve is closed in a straight line in case of power failure in an accident, a longer valve closing time is required to meet the pressure control standard, which virtually increases the scale of the protective measures and increases the investment. In order to solve this problem, a broken line valve closing rule is proposed to reduce the volume of protective measures while optimizing the pressure. The characteristic line method is used to check each scheme through FORTRAN programming, and the general rule is summarized by analyzing the influencing factors of the main parameters. The case results show that the broken line valve closing can reduce the volume of protective measures and reduce the project cost compared with the straight line valve closing within the same valve closing time under the premise of ensuring that the pressure meets the requirements.

long distance pressurized gravity flow  /  air vessel  /  elevated tank  /  polyline valve closing
王开朗, 张健, 姚天语, 王燕. 长距离加压重力流输水工程水锤防护研究. 水电能源科学, 2023 , 41 (5) : 76 -80 . DOI: 10.20040/j.cnki.1000-7709.2023.20222360
Kai-lang WANG, Jian ZHANG, Tian-yu YAO, Yan WANG. Study on Water Hammer Protection of Long-distance Pressurized Gravity Flow Water Conveyance Project[J]. Water Resources and Power, 2023 , 41 (5) : 76 -80 . DOI: 10.20040/j.cnki.1000-7709.2023.20222360
  • 国家重点研发计划(2016YFC0401810)
  • 江苏省第五期“333工程”培养资金(BRA2018061)
2023年第41卷第5期
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文章信息
doi: 10.20040/j.cnki.1000-7709.2023.20222360
  • 接收时间:2022-11-09
  • 首发时间:2026-01-28
  • 出版时间:2023-05-25
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出版历史
  • 收稿日期:2022-11-09
  • 修回日期:2022-11-21
基金
国家重点研发计划(2016YFC0401810)
江苏省第五期“333工程”培养资金(BRA2018061)
作者信息
    河海大学水利水电学院,江苏 南京 210098

通讯作者:

张健(1970-),男,博士、教授、博导,研究方向为长距离、跨流域泵站输配水系统的供水安全,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
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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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