【摘要】：液氧泵的研制任務(wù)就是設(shè)計(jì)一臺(tái)高效率的液氧離心泵。以該泵為核心設(shè)備的地面液氧加注系統(tǒng)，能夠?qū)⒁貉鯊牡孛娓咂焚|(zhì)地泵送至長(zhǎng)征系列運(yùn)載火箭上的液氧貯箱。 本文研究了一種在國(guó)內(nèi)航天地面加注系統(tǒng)從未有過(guò)的，與全流道全三維流場(chǎng)的水力數(shù)值計(jì)算方法相結(jié)合的，“反－正－反”迭代耦合的新型水力設(shè)計(jì)方法，來(lái)設(shè)計(jì)確定液氧泵的水力參數(shù)。通過(guò)本文研究的新型水力設(shè)計(jì)方法研制出來(lái)的液氧離心泵，經(jīng)發(fā)射場(chǎng)試驗(yàn)證明，其水力性能不僅完全滿足地面液氧加注系統(tǒng)的要求，并且泵效率較高。 這種迭代耦合新型水力設(shè)計(jì)方法的具體研究?jī)?nèi)容為：先采用“反問(wèn)題”設(shè)計(jì)，根據(jù)該液氧泵研制任務(wù)的參數(shù)特點(diǎn)——低比速離心泵，選擇適合于該具體工況低比速液氧離心泵的一維水力方法。再進(jìn)行“正問(wèn)題”計(jì)算，，本文采用的是全流道全三維流場(chǎng)的CFD數(shù)值計(jì)算方法，通過(guò)正確選擇適合該類泵的計(jì)算模型和正確設(shè)置各項(xiàng)參數(shù)，該全流道全三維流場(chǎng)的數(shù)值計(jì)算收斂，并提供了一種直觀形象的流場(chǎng)形態(tài)，數(shù)值計(jì)算結(jié)果反應(yīng)了泵內(nèi)水力的真實(shí)情況、揭示出泵內(nèi)液流運(yùn)動(dòng)的規(guī)律、并能在計(jì)算機(jī)設(shè)計(jì)階段分析發(fā)現(xiàn)泵水力設(shè)計(jì)的問(wèn)題和不足�！罢龁�(wèn)題”計(jì)算發(fā)現(xiàn)問(wèn)題后，再通過(guò)“反問(wèn)題”修改設(shè)計(jì)，“正問(wèn)題”再次計(jì)算及分析。就這樣多次迭代耦合地反復(fù)修改水力設(shè)計(jì)，直至最終計(jì)算結(jié)果顯示，流場(chǎng)已最優(yōu)化。 通過(guò)這種新型水力設(shè)計(jì)方法的研究效果證實(shí)，該方法可以在設(shè)計(jì)階段即實(shí)現(xiàn)對(duì)泵性能的評(píng)價(jià)，從而設(shè)計(jì)出最優(yōu)化的離心泵，并大幅縮短研制周期和費(fèi)用。研究出的這種實(shí)用有效的新型水力設(shè)計(jì)方法，將對(duì)提高今后的國(guó)內(nèi)航天加注等用泵的研制水平起到極大地推動(dòng)作用。
[Abstract]:The research and development of liquid oxygen pump is to design a high efficiency liquid oxygen centrifugal pump. The surface liquid oxygen filling system with the pump as the core equipment can pump the liquid oxygen from the ground high quality to the liquid oxygen tank on the long March series carrier rocket. In this paper, a new hydraulic design method, which has never existed in the domestic space ground filling system, and which is combined with the hydraulic numerical calculation method of the full-channel three-dimensional flow field, is studied in this paper, which is coupled with the "anti-positive-inverse" iterative method. To design and determine the hydraulic parameters of the liquid oxygen pump. The liquid-oxygen centrifugal pump developed by the new hydraulic design method studied in this paper has been proved by the field test that its hydraulic performance not only fully meets the requirements of the surface liquid-oxygen filling system, but also has a high pump efficiency. The specific research contents of this iterative coupling new hydraulic design method are as follows: first, the "inverse problem" design is adopted, and according to the parameter characteristics of the research and development task of the liquid oxygen pump-low specific velocity centrifugal pump, A one-dimensional hydraulic method suitable for low specific speed liquid oxygen centrifugal pump was selected. Then the "positive problem" calculation is carried out. In this paper, the CFD numerical calculation method of the full three-dimensional flow field of the whole passage is adopted. The numerical calculation convergence of the full-channel three-dimensional flow field is obtained by selecting the calculation model and setting the parameters correctly for this kind of pump. The numerical results reflect the real situation of the hydraulic power in the pump, reveal the law of the fluid flow movement in the pump, and can be analyzed in the stage of computer design to find the problems and shortcomings of the hydraulic design of the pump. After the problem is discovered by "positive problem" calculation, the design is modified by "inverse problem", and the "positive problem" is calculated and analyzed again. In this way, the hydraulic design is modified repeatedly and iteratively until the final calculation results show that the flow field has been optimized. Through the research results of this new hydraulic design method, it is proved that this method can realize the evaluation of pump performance in the design stage, thus the optimum centrifugal pump can be designed, and the development cycle and cost can be greatly shortened. This practical and effective new hydraulic design method will play a great role in improving the development level of domestic spaceflight filling pump in the future.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TH311

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 汪建華,明燕,趙子傳;無(wú)過(guò)載泵優(yōu)化設(shè)計(jì)[J];江漢石油學(xué)院學(xué)報(bào);2000年02期

2 胡壽根,蔣旭平,韓百順;離心式水泵內(nèi)部流場(chǎng)的面元法數(shù)值計(jì)算[J];流體工程;1988年10期

3 朱士燦;離心式水泵葉輪三元流場(chǎng)計(jì)算[J];流體工程;1989年06期

4 陳次昌,陳紅勛,關(guān)醒凡,高良潤(rùn);一種計(jì)算離心泵葉輪內(nèi)部流動(dòng)的方法[J];流體工程;1990年03期

5 劉正先,曹淑珍,谷傳綱,苗永淼,王玉明,劉艷梅;離心葉輪內(nèi)三維湍流流場(chǎng)的數(shù)值計(jì)算與實(shí)驗(yàn)比較[J];流體機(jī)械;2000年04期

6 李海鋒,吳玉林,趙志妹;利用三維紊流數(shù)值模擬進(jìn)行離心葉輪設(shè)計(jì)比較[J];流體機(jī)械;2001年09期

7 蔡彬;程新群;付強(qiáng);李維斌;;低比速離心泵葉輪內(nèi)不同葉片數(shù)流場(chǎng)計(jì)算及分析[J];農(nóng)機(jī)化研究;2006年04期

8 汪建華;離心泵葉輪參數(shù)的優(yōu)化設(shè)計(jì)[J];排灌機(jī)械;1994年02期

9 王春林;低比轉(zhuǎn)速離心式渣漿泵葉輪的優(yōu)化設(shè)計(jì)[J];排灌機(jī)械;1999年04期

10 朱榮生;歐鳴雄;付強(qiáng);管榮國(guó);李繼忠;;低比轉(zhuǎn)速半螺旋吸水室雙吸泵流場(chǎng)的數(shù)值分析[J];排灌機(jī)械;2008年04期

本文編號(hào)：2385284