水利科技与经济
水利科技與經濟
수리과기여경제
2015年
2期
1-3
,共3页
水力设计%出水流道%数值模拟%竖井贯流泵站
水力設計%齣水流道%數值模擬%豎井貫流泵站
수력설계%출수류도%수치모의%수정관류빙참
optimum hydraulic design%outlet conduit%numerical simulation%shaft tubular pumping system
对于低扬程泵装置，出水流道的水力性能对水泵装置性能影响较大。以浙江省某大型竖井贯流泵站出水流道的设计资料为研究背景，根据出水流道的水力设计要求，将流道水力损失最小作为优化设计目标函数，通过确定流道控制尺寸和设计流道型线，给出了出水流道的两种设计方案。采用流道数值模拟方法，对两种设计方案分别进行了数值模拟计算和水力性能分析比较。分析结果表明，流道控制尺寸对流道水力性能和泵站土建费用影响较大，其值在允许范围内应尽可能小；流道型线影响流道水力损失，在控制尺寸一定的条件下，流道型线应进行细致的优化。
對于低颺程泵裝置，齣水流道的水力性能對水泵裝置性能影響較大。以浙江省某大型豎井貫流泵站齣水流道的設計資料為研究揹景，根據齣水流道的水力設計要求，將流道水力損失最小作為優化設計目標函數，通過確定流道控製呎吋和設計流道型線，給齣瞭齣水流道的兩種設計方案。採用流道數值模擬方法，對兩種設計方案分彆進行瞭數值模擬計算和水力性能分析比較。分析結果錶明，流道控製呎吋對流道水力性能和泵站土建費用影響較大，其值在允許範圍內應儘可能小；流道型線影響流道水力損失，在控製呎吋一定的條件下，流道型線應進行細緻的優化。
대우저양정빙장치，출수류도적수력성능대수빙장치성능영향교대。이절강성모대형수정관류빙참출수류도적설계자료위연구배경，근거출수류도적수력설계요구，장류도수력손실최소작위우화설계목표함수，통과학정류도공제척촌화설계류도형선，급출료출수류도적량충설계방안。채용류도수치모의방법，대량충설계방안분별진행료수치모의계산화수력성능분석비교。분석결과표명，류도공제척촌대류도수력성능화빙참토건비용영향교대，기치재윤허범위내응진가능소；류도형선영향류도수력손실，재공제척촌일정적조건하，류도형선응진행세치적우화。
For low-lift pumping stations , the hydraulic performance of outlet conduit had great in-fluence on pump system .Based on the design data of outlet conduit in shaft tubular pumping station in Zhejiang province , according to the hydraulic design requirement of outlet conduit , objective func-tion of optimum hydraulic design for outlet conduit was set up .Through rational determination of the control dimensions and flow pattern in the conduit ,two kinds of designing scheme for outlet conduit were presented.By applying the conduit numerical simulation method , two kinds of designing scheme had been completed respectively , their hydraulic performance were compared .It is showed that the conduit control dimensions have great influence on the hydraulic performance and construction cost for the shaft tubular system , the valve should be as small as possible in the allowable range .Flow pattern in the conduit has great influence on the hydraulic loss , it should be optimized when the conduit con-trol dimensions have been defined .
