發(fā)布時間：2018-03-30 13:17

  本文選題：糯扎渡水電站　切入點：疊梁門　出處：《水利水電技術(shù)》2017年11期

【摘要】：為盡量發(fā)揮分層取水措施的生態(tài)效益和電站的經(jīng)濟效益,將糯扎渡水電站疊梁門試運行期實測水溫與數(shù)值模擬水溫進行對比,發(fā)現(xiàn):(1)2015年、2016年4—8月壩前庫區(qū)實測的表層水溫與數(shù)值模擬的表層水溫有-16%~29%的偏差;(2)糯扎渡電站壩前庫區(qū)實測水溫分層狀況和數(shù)值模擬結(jié)果一致,屬全年分層型,但試運行期間水溫分兩層的時段約為4個月,水溫分層厚度與數(shù)值模擬的分層厚度存在差異,而且4—8月中、上層的實測水溫高于數(shù)值模擬水溫;(3)數(shù)值模擬預(yù)測過高地預(yù)判了電站汛期水庫蓄水位,從而過高地估計了4—8月的下泄水溫影響,過低地預(yù)測了分層取水措施的升溫效果;(4)設(shè)計推薦的疊梁門運行調(diào)度方案總體可行,但可能偏保守。根據(jù)上述對比分析結(jié)果,建議充分利用實測水溫數(shù)據(jù),對疊梁門設(shè)計進行效果評估,進一步優(yōu)化分層取水措施設(shè)計并完善疊梁門運行調(diào)度方案。
[Abstract]:In order to give full play to the ecological benefits of stratified water intake measures and the economic benefits of the power station, the measured water temperature and the numerical simulation water temperature of Nuozhadu Hydropower Station during the trial operation period were compared. It is found that in 2015, the observed surface water temperature in the reservoir area in front of the dam in April-August 2016 is -16% deviation from that in numerical simulation. The measured water temperature stratification in the reservoir area in front of the dam of Nuozhadu Hydropower Station is consistent with the results of numerical simulation, and it belongs to the annual stratification type. However, the period of water temperature divided into two layers is about 4 months during trial operation, and the stratification thickness of water temperature is different from that of numerical simulation, and in the period of April to August, The measured water temperature of the upper layer is higher than that of the numerical simulation water temperature.) the prediction of the reservoir water level in the flood season of the power station by the numerical simulation is too high, and the influence of the discharge temperature on the water discharge temperature in April to August is overestimated. This paper predicts the heating effect of stratified water intake measures in low ground. The recommended operation scheduling scheme for laminated gate is generally feasible, but it may be conservative. Based on the above results, it is suggested to make full use of the measured water temperature data. This paper evaluates the effect of the design of the laminated door, and further optimizes the design of the layered water intake measures and improves the operation scheduling scheme of the laminated door.
【作者單位】： 華能瀾滄江水電股份有限公司;環(huán)境保護部環(huán)境工程評估中心;水電環(huán)境研究院;
【基金】：中國長江三峽集團公司資助項目(0799564,0799558,0799556) 中國華電集團公司資助項目(HD-XZ-DG-2015-FW-031) 中國博士后科學(xué)基金資助項目(2016M592404)
【分類號】：TV737

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