本文關(guān)鍵詞： 潛水泵 導(dǎo)流器 面積比 效率 水力損失　出處：《蘭州理工大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：井用潛水泵是一種通用機(jī)械，屬于量大面廣產(chǎn)品，具有較大的市場需求。但是目前市場上的井用潛水泵的效率不算高，還需進(jìn)一步提升。目前借助CFD數(shù)值模擬技術(shù)，可以通過模擬結(jié)果來改進(jìn)設(shè)計(jì)參數(shù)，，還可以通過一殼多用的設(shè)計(jì)理念生產(chǎn)出性能不同的潛水泵，適應(yīng)市場需求，達(dá)到節(jié)約成本、節(jié)能節(jié)材的目的，具有較大的科研和經(jīng)濟(jì)意義。 本文通過對潛水泵葉輪和導(dǎo)流器的匹配對泵性能的影響和離心泵的面積比原理研究，提出潛水泵一殼多用的設(shè)計(jì)思想，主要內(nèi)容如下： 1.推導(dǎo)出了葉輪特性方程和導(dǎo)流器特性方程。給出了潛水泵最佳工況點(diǎn)確定方法。 2.研究面積比Y值與比轉(zhuǎn)速的關(guān)系及潛水泵面積比的計(jì)算方法。 3.分別對潛水泵A和潛水泵B進(jìn)行水力設(shè)計(jì)，利用Pro/Engineer軟件的三維建模功能，分別對他們進(jìn)行全流道的三位實(shí)體建模，并使用ICEM軟件進(jìn)行網(wǎng)格劃分。 4.運(yùn)用Fluent軟件對潛水泵進(jìn)行數(shù)值模擬和性能預(yù)測，分析0.8Qd、1.0Qd、1.2Qd工況下葉輪與導(dǎo)流器內(nèi)部的速度場和壓力場，并計(jì)算導(dǎo)流器內(nèi)部水力損失，得出在選擇合適的面積比時(shí)，不同導(dǎo)流器可以配不同葉輪，同樣可以得到高效泵。此研究拓寬了潛水泵的適用范圍，節(jié)約了研發(fā)時(shí)間以及降低了成本，具有很大的實(shí)用價(jià)值。
[Abstract]:Well submersible pump is a kind of general machinery, which belongs to a wide range of products and has a large market demand. However, the efficiency of the submersible pump in the well is not high and needs to be further improved. At present, the CFD numerical simulation technology is used to improve the efficiency of the submersible pump. The design parameters can be improved by the simulation results, and the submersible pump with different performance can be produced through the multi-purpose design concept of one shell, which can meet the needs of the market and achieve the purpose of saving cost and saving energy and materials, which has great scientific research and economic significance. In this paper, the influence of impeller matching with diversion on pump performance and the area ratio of centrifugal pump are studied, and the design idea of multi-purpose submersible pump is put forward. The main contents are as follows:. 1. The impeller characteristic equation and the flow guide characteristic equation are derived, and the method of determining the optimum operating point of the submersible pump is given. 2. The relationship between Y value of area ratio and specific speed and the calculation method of area ratio of submersible pump are studied. 3.The hydraulic design of submersible pump A and submersible pump B is carried out respectively. Using the three-dimensional modeling function of Pro/Engineer software, the three-position solid modeling of the whole channel is carried out respectively, and the mesh is divided by ICEM software. 4. The numerical simulation and performance prediction of the submersible pump are carried out by using Fluent software. The velocity field and pressure field inside the impeller and the guide are analyzed under the working condition of 0.8QdLi 1.0QdL 1.2Qd, and the hydraulic loss of the impeller is calculated, and the suitable area ratio is obtained. This study broadens the scope of application of the submersible pump, saves the research and development time and reduces the cost, so it is of great practical value.
【學(xué)位授予單位】：蘭州理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH38

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