本文關鍵詞：Q25H52電液循環(huán)泵的研制　出處：《武漢工程大學》2011年碩士論文　論文類型：學位論文

  更多相關文章： 離心泵 葉輪 葉片繪形 優(yōu)化設計 性能測試

【摘要】：Q25H52電液循環(huán)泵是一種新型高速離心泵,主要用于特種動力裝備,本課題關于Q25H52電液循環(huán)泵的研究主要包括葉輪的繪形、繪型結(jié)果的優(yōu)化和性能測試三部分: 1.葉輪的繪形 葉輪是影響離心泵性能的主要零件,離心泵葉輪的繪形即繪制出葉輪的前后蓋板該和葉片的型線,繪型的好壞直接關系設產(chǎn)品的性能,是葉輪設計中最關鍵的步驟。本文提出了一種新的軸面軸面投影圖的繪制方法。先對葉輪進行簡單的幾何分析,確定葉輪前蓋板由一條直線和兩條弧線構(gòu)成,后蓋板由一條直線和一條弧線構(gòu)成,之后對型線進行少量的數(shù)值計算,將每個參數(shù)用方程式表達出來,最后使用matlab對計算編程,使葉輪的繪型可以通過輸入一組參數(shù)由電腦計算完成,之后修改也只用改變相應參數(shù)即可,大大簡化了計算量。所得結(jié)果精度極高,接近理論設計的形狀。在葉輪流線的分點計算時,本文將“二分法”引入,編程進行計算,結(jié)果表明計算簡便,分點精度高。 2.優(yōu)化設計 葉輪設計完成后,需對葉輪進行優(yōu)化設計,葉輪的優(yōu)化設計可以改善葉輪形狀,顯著提高葉輪效率,是葉輪設計的必須步驟。本論文選取正交優(yōu)化法。所謂正交設計,就是利用事先制好的特殊表格—正交表來科學地安排試驗,并進行試驗數(shù)據(jù)分析的一種方法。本文采用L1 6( 45)最后表對繪型結(jié)果進行了兩輪優(yōu)化,經(jīng)檢驗優(yōu)化后的結(jié)果接近于理論結(jié)果,故優(yōu)化效果很好。 3.性能測試 完成葉輪設計后進行了Q25H52電液循環(huán)泵的性能測試,檢驗了在不同流量、轉(zhuǎn)速以及通氣情況下的工作情況,測試結(jié)果表明Q25H52電液循環(huán)泵工作穩(wěn)定高效,符合設計要求。
[Abstract]:Q25H52 electro-hydraulic circulating pump is a new type of high-speed centrifugal pump, which is mainly used for special power equipment. The research on Q25H52 electro-hydraulic circulating pump mainly includes the drawing of impeller. The optimization and performance testing of the drawing results are three parts: 1. Shape of impeller Impeller is the main part that affects the performance of centrifugal pump. The drawing of centrifugal pump impeller is the drawing of the front and rear cover plate of impeller and the profile of blade. It is the most important step in impeller design. In this paper, a new method of drawing axial plane projection map is put forward. Firstly, a simple geometric analysis of impeller is carried out, and it is determined that the front cover plate of impeller is composed of a straight line and two arcs. The back cover plate is composed of a straight line and an arc. Then a small amount of numerical calculation is carried out on the shape line. Each parameter is expressed by equation. Finally, the matlab pair is used to program the calculation. The drawing of impeller can be completed by computer by inputting a set of parameters, and then modified only by changing the corresponding parameters, which greatly simplifies the calculation. The result is extremely accurate. This paper introduces the dichotomy method into the calculation of the separation point of the impeller streamline line and carries out the calculation by programming. The results show that the calculation is simple and the accuracy of the separation point is high. 2. Optimal design After the design of impeller is finished, the impeller should be optimized. The optimal design of impeller can improve the shape of impeller and improve the efficiency of impeller. Orthogonal design is a necessary step in the design of impeller. In this paper, orthogonal optimization method is chosen. The so-called orthogonal design is the use of a special form made in advance-orthogonal table to scientifically arrange the test. A method to analyze the experimental data is presented in this paper. 45) at the end of the paper, two rounds of optimization are carried out, and the results are close to the theoretical results, so the optimization effect is very good. 3. Performance testing After the impeller design was completed, the performance of Q25H52 electro-hydraulic circulating pump was tested, and the working conditions of Q25H52 electrohydraulic circulating pump under different flow rate, rotating speed and ventilation were tested. The test results show that the Q 25 H 52 electrohydraulic circulating pump works stably and efficiently and meets the design requirements.
【學位授予單位】：武漢工程大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH311

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