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KYET水電站調壓方式設計優化及關鍵技術
 李江1,崔煒2,孔昭年2,楊遠生3,朱新民2,周同旭3
(1.新疆水利水電規劃設計管理局,新疆 烏魯木齊 830000; 2.中國水利水電科學研究院 國家水電可持續發展研究中心,北京 100038; 3.天津電氣科學研究院有限公司,天津 300301)
Design Optimization and Key Technology for Surge Regulating Method of KYET Hydropower Station
 LI Jiang1, CUI Wei2, KONG Zhaonian2, YANG Yuansheng3, ZHU Xinmin2, ZHOU Tongxu3
(1.Xinjiang Administration of Water Resources and Hydropower Planning and Design, Urumqi 830000, China; 2.National Research Center for Sustainable Hydropower, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; 3.Tianjin Research Institute of Electric Science Co., Ltd., Tianjin 300301, China)

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人民黃河
  2019,Vol. 41(9): 110
  工程勘測設計
KYET水電站調壓方式設計優化及關鍵技術
 李江1,崔煒2,孔昭年2,楊遠生3,朱新民2,周同旭3
(1.新疆水利水電規劃設計管理局,新疆 烏魯木齊 830000; 2.中國水利水電科學研究院 國家水電可持續發展研究中心,北京 100038; 3.天津電氣科學研究院有限公司,天津 300301))
doi:
Design Optimization and Key Technology for Surge Regulating Method of KYET Hydropower Station
 LI Jiang1, CUI Wei2, KONG Zhaonian2, YANG Yuansheng3, ZHU Xinmin2, ZHOU Tongxu3
(1.Xinjiang Administration of Water Resources and Hydropower Planning and Design, Urumqi 830000, China; 2.National Research Center for Sustainable Hydropower, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; 3.Tianjin Research Institute of Electric Science Co., Ltd., Tianjin 300301, China)
全文: PDF (1.59MB)
摘要: 在KYET水電站早期設計階段,針對長7 100 m的發電引水系統水力過渡過程,研究比較了調壓井、氣墊式調壓室、調壓閥等型式,初步推薦采用調壓井作為調壓方式。隨著工作的深入,認識到采用調壓閥替代調壓井是可行的。利用水力過渡過程計算分析了帶有調壓閥的水輪機調節系統在一次調頻、大/小波動工況的表現,并采用帶調壓閥的機組調節仿真試驗系統進行了復核研究。基于計算和試驗成果,進行了調壓閥選型、布置和防抬機復核,并開展了優化方案效益分析。結果表明,該水電站采用調壓閥方案能夠解決機組轉速和水道壓力上升問題,滿足機電設備和水工建筑物的運行和安全要求,以調壓閥替代調壓井是可行的,其經濟、社會和生態效益顯著。
關鍵詞:
Abstract: In the early design stage of KYET Hydropower Station in Xinjiang, the surge regulation methods of surge shaft, air cushion surge chamber and pressure relief valve (PRV) were studied and compared, aiming at the hydraulic transients of water diversion system with a length of 7 100 m. Surge shaft was initially recommended. With the development of design work, it was realized that it was possible to use PRV replacing surge shaft. In this paper, the performances of hydraulic turbine governing system under load cases of primary frequency modulation and large/small fluctuation were analyzed with hydraulic transient process calculation, and verified with a turbine governing simulation test system having actual PRV supported by a national research project. Based on the calculation and test results, the selection, arrangement of PRV and the turbine antilift check were carried out. The benefits of surge regulation method optimization were analyzed. The results show that the use of PRV can solve the problems of turbine speed rising and water pressure rising in conveyance system and meet the operation and safety requirements of hydropower equipment and hydraulic structures; it is feasible to substitute PRV for surge shaft and its economic, social and ecological benefits are remarkable.
Key words: turbine pressure relief valve; surge regulating method; hydropower station; design optimization; key technology
收稿日期:
基金資助: 新疆維吾爾自治區天山英才工程第二期項目(2016-2018);國家重點研發計劃項目(2016YFC0401804)
作者簡介: 李江(1971—),男(回族),河南平頂山人,教授級高級工程師,注冊咨詢工程師(投資),主要從事水利工程規劃設計管理工作
江苏7位数开奖历史