山丘区自压输水管道水锤防护措施研究
【目的】避免山丘区自压输水管道因水锤而遭受破坏，保障管道的安全运行。【方法】针对山丘区地势起伏的自压输水管道中水锤现象正负压较大的特点，以陕西省千阳县一自压输水管道工程为例，依据水锤基本计算理论，采用倾斜直管和拟合等效短直管相结合的数值模拟方法，分别模拟各个驼峰断面设置进排气阀和末端控制阀门断面前设置超压泄压阀的防护效果，对计算模拟结果进行分析，确定水锤防护措施及具体位置。【结果】在无水锤防护措施的情况下，管道末端控制阀门快速关闭时管道内沿管线产生明显负压，最大负压水头达到-20.06 m，管道末端控制阀门断面处正压最大，正压水头达到87.58 m；合理设置水锤防护措施后，管线全程无负压，全程...
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| Veröffentlicht in: | Guanʻgai paishui xuebao 2023-01, Vol.42 (9), p.138-144 |
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| creator | SHI Xiaowu HE Wuquan TIAN Yufeng LI Qianxi |
| description | 【目的】避免山丘区自压输水管道因水锤而遭受破坏，保障管道的安全运行。【方法】针对山丘区地势起伏的自压输水管道中水锤现象正负压较大的特点，以陕西省千阳县一自压输水管道工程为例，依据水锤基本计算理论，采用倾斜直管和拟合等效短直管相结合的数值模拟方法，分别模拟各个驼峰断面设置进排气阀和末端控制阀门断面前设置超压泄压阀的防护效果，对计算模拟结果进行分析，确定水锤防护措施及具体位置。【结果】在无水锤防护措施的情况下，管道末端控制阀门快速关闭时管道内沿管线产生明显负压，最大负压水头达到-20.06 m，管道末端控制阀门断面处正压最大，正压水头达到87.58 m；合理设置水锤防护措施后，管线全程无负压，全程正压最大水头为70.88 m，未超过管道允许的最大压力。【结论】对于山丘区自压输水管道，采用进排气阀和超压泄压阀联合防护水锤的方法，可以有效缓解水锤现象的发生，保证管道内的压力在设计压力允许范围内。 |
| doi_str_mv | 10.13522/j.cnki.ggps.2023028 |
| format | Article |
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HE Wuquan ; TIAN Yufeng ; LI Qianxi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p1288-d4239e9cdea885df649c493edfc5d35fcf5908b8bc1f4a61895e249e2e48a4653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>Control valves</topic><topic>Critical pressure</topic><topic>Exhaust pipes</topic><topic>Exhaust systems</topic><topic>Gravity flow</topic><topic>Hammers</topic><topic>Irrigation water</topic><topic>Mathematical models</topic><topic>Overpressure</topic><topic>Pipelines</topic><topic>Pressure</topic><topic>Pressure head</topic><topic>Relief valves</topic><topic>Safety valves</topic><topic>Vibration analysis</topic><topic>Water</topic><topic>Water damage</topic><topic>Water hammer</topic><topic>Water supply</topic><toplevel>online_resources</toplevel><creatorcontrib>SHI Xiaowu</creatorcontrib><creatorcontrib>HE Wuquan</creatorcontrib><creatorcontrib>TIAN Yufeng</creatorcontrib><creatorcontrib>LI Qianxi</creatorcontrib><collection>ProQuest Central (Corporate)</collection><collection>Agricultural Science Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>SciTech Premium Collection (Proquest) (PQ_SDU_P3)</collection><collection>Agriculture Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Guanʻgai paishui xuebao</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SHI Xiaowu</au><au>HE Wuquan</au><au>TIAN Yufeng</au><au>LI Qianxi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>山丘区自压输水管道水锤防护措施研究</atitle><jtitle>Guanʻgai paishui xuebao</jtitle><date>2023-01-01</date><risdate>2023</risdate><volume>42</volume><issue>9</issue><spage>138</spage><epage>144</epage><pages>138-144</pages><issn>1672-3317</issn><abstract>【目的】避免山丘区自压输水管道因水锤而遭受破坏，保障管道的安全运行。【方法】针对山丘区地势起伏的自压输水管道中水锤现象正负压较大的特点，以陕西省千阳县一自压输水管道工程为例，依据水锤基本计算理论，采用倾斜直管和拟合等效短直管相结合的数值模拟方法，分别模拟各个驼峰断面设置进排气阀和末端控制阀门断面前设置超压泄压阀的防护效果，对计算模拟结果进行分析，确定水锤防护措施及具体位置。【结果】在无水锤防护措施的情况下，管道末端控制阀门快速关闭时管道内沿管线产生明显负压，最大负压水头达到-20.06 m，管道末端控制阀门断面处正压最大，正压水头达到87.58 m；合理设置水锤防护措施后，管线全程无负压，全程正压最大水头为70.88 m，未超过管道允许的最大压力。【结论】对于山丘区自压输水管道，采用进排气阀和超压泄压阀联合防护水锤的方法，可以有效缓解水锤现象的发生，保证管道内的压力在设计压力允许范围内。</abstract><cop>Xinxiang City</cop><pub>Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage</pub><doi>10.13522/j.cnki.ggps.2023028</doi><tpages>7</tpages></addata></record> |
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| ispartof | Guanʻgai paishui xuebao, 2023-01, Vol.42 (9), p.138-144 |
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| language | chi ; eng |
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| subjects | Control valves Critical pressure Exhaust pipes Exhaust systems Gravity flow Hammers Irrigation water Mathematical models Overpressure Pipelines Pressure Pressure head Relief valves Safety valves Vibration analysis Water Water damage Water hammer Water supply |
| title | 山丘区自压输水管道水锤防护措施研究 |
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