【摘要】：抽水蓄能電站事故閘門動水閉門可靠性及門體水力荷載特性一直是閘門設(shè)計(jì)和運(yùn)行中的核心問題,本文通過數(shù)值模擬,對響水澗抽水蓄能電站上庫進(jìn)水口事故閘門在不同事故流量工況下動水閉門過程的門體水力荷載進(jìn)行研究,并與模型試驗(yàn)結(jié)果進(jìn)行比較分析,相同事故工況的數(shù)值計(jì)算成果和模型試驗(yàn)成果吻合較好,表明采用RNG k~ε模型和VOF方法對平面閘門動水關(guān)閉的非恒定流過程進(jìn)行數(shù)值模擬能夠取得較好的結(jié)果。數(shù)值模擬計(jì)算結(jié)果表明流道的過流量對事故閘門門體水力荷載影響顯著,初始事故流量越大,閘門動水關(guān)閉過程中閘門區(qū)滿流向明流過渡時(shí)刻的閘門相對開度越大,閘門上游底緣上托力越小,事故閘門動水閉門的持住力相應(yīng)越大。事故流量由151 m~3/s增大至800 m~3/s時(shí),閉門持住力增大約20%。計(jì)算分析結(jié)果可為相關(guān)閘門的設(shè)計(jì)和運(yùn)行提供參考。
[Abstract]:The reliability of dynamic closed gate and the hydraulic load characteristics of gate body in pumped storage power station have been the core problems in the design and operation of sluice gate. In this paper, the numerical simulation is carried out. In this paper, the hydraulic load of the gate of the entrance accident gate of Xiangshuijian pumped storage power station under different accident flow conditions is studied, and the results are compared with the results of the model test, and the results are compared with the results of the model test, and the results are compared with those of the model test. The numerical results of the same accident conditions are in good agreement with the experimental results. It is shown that the RNG K蔚 model and VOF method can be used to simulate the unsteady flow process of the dynamic water closure of the planar gate, and good results can be obtained. The numerical simulation results show that the overflow of the channel has a significant effect on the hydraulic load of the accident gate body. The larger the initial accident discharge is, the greater the relative opening of the gate at the transition time of the full direction to the open flow in the gate area is during the process of closing the dynamic water of the gate. The smaller the supporting force on the bottom edge of the gate upstream, the greater the holding force of the dynamic water shut door of the accident gate. When the accident flow increased from 151 m / 3 to 800 m / 3 / s, the closed-door holding force increased by about 20%. The results of calculation and analysis can provide reference for the design and operation of related gates.
【作者單位】： 中國水利水電科學(xué)研究院水力學(xué)所;安徽響水澗抽水蓄能有限公司;
【基金】：國家重點(diǎn)研發(fā)計(jì)劃(2016YFC0502202);國家重點(diǎn)研發(fā)計(jì)劃(2016YFC0401706)
【分類號】：TV135

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