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- From the basic principle of remanufacturing, this paper has done some research on remanufacture of the 1750m3/h dredging pump shell. 本文從再制造的基本原則出發(fā)，圍繞1750m3/h挖泥船泥泵殼再制造進(jìn)行了一定的研究。
- Immersible degrees in oil wells with low pump efficiency were adjusted by using the relation curves. 利用該關(guān)系圖對泵效低下的油井沉沒(méi)度進(jìn)行調整,取得了較好的效果。
- Pump efficiency calculation formula are deriredand methods are given to improve pump efficiencythrough changing swabbing parameters. 推導出了泵效計算的有關(guān)公式，說(shuō)明了如何改變抽吸參數提高泵效的方法。
- Field use shows that the new tubingless oil production unit has the advantages of high pump efficiency, low cost and easy operation. 現場(chǎng)使用情況表明，新型無(wú)油管采油裝置具有泵效高、投資少及作業(yè)方便等優(yōu)點(diǎn)。
- The pump can also be employed in organic analysis with ethanol carrier, and the pump efficiency and other electrokinetic properties were amoliorated by carrier additives. 電滲泵也可用于有機分析，采用乙醇載流和添加 劑，泵效率和其它電動(dòng)性能均有改善。
- In the case of high stable mean-wavelength operation, the DPB SFS with the optimized reflector has a linewidth and pump efficiency obviously larger than SFSs in other configurations. 在光源高穩定性的前提下,反射鏡參數優(yōu)化后的該結構光源具有較寬的頻帶寬度和較高的抽運效率。
- The test results have proved that the flow rate widely varied and the pump efficiency is high when the pump outlet line structure was altered and the outlet pressure was controlled in a special limit. 試驗結果表明，改變泵出口管線(xiàn)結構，使泵出口壓力在一定范圍內工作時(shí)，流量變化大，而且泵效率較高，可以作為泵調整參數的一種手段；
- Design and Realization of Protection Unit of Dredging Pump 挖泥船泥泵保護裝置的設計與實(shí)現
- Based on the similitude law of pumps,presents the method for determining the pump efficiency under different working conditions with variable spe. 利用水泵相似定律,給出了確定變轉速運行時(shí)各工況點(diǎn)水泵效率的等效率曲線(xiàn)法。
- Reverse design and process simulation of dredging pump impeller 疏浚泥泵葉輪的反求設計及加工仿真
- Three stage-takedown reconstructions are made to the oil pumps in Xongxian Station so as to improve pump efficiency and cut down power consumption. 為提高泵壓的利用率,減少耗電量,對任京線(xiàn)雄縣泵站的輸油泵先后進(jìn)行了三次拆級改造,并安裝了一臺小功率輸油泵,以實(shí)現輸油泵的經(jīng)濟運行。
- The results show that some models with the bionic non-smooth working surfaces are very effective, with the pump efficiency enhancement of 3.45%, that means its growth rate of 6.81%. 對比試驗表明，在離心式水泵的有效工作流量范圍內，某些仿生改形表面的模型具有十分明顯的效果，效率提高最大為3.;45%25，最大增效率為6
- Excessively long stroke impels few increase in pump efficiency and will effect the fatigue life of the whole pumping system. 而沖程過(guò)大時(shí)泵效提高的幅度不大,反而影響整個(gè)抽油機系統的疲勞壽命。
- The characteristics of LT type high elastic friction clutch and its application in dredge pump transmission system are introduced in this paper. 著(zhù)重介紹了我國LT型高彈性摩擦離合器的性能特點(diǎn)及其在挖泥船泥泵傳動(dòng)中的應用實(shí)例。
- They are dredging for the dead body. 他們在撈尸體。
- These results are very important for improving the performances and increasing the pumping efficiency of EDFA. 摻鉺光纖放大器工作在飽和狀態(tài)下,綠色熒光功率隨輸入信號功率增加而增加。
- Theoretical Study on the Pumping Efficiency of Coupling System Described by Paraxial Approximation[J]. 引用該論文 李傳東;鄢雨;胡文濤;周復正;張正泉;徐至展.
- The coal slag in the sedimentation pond is sucked by an overhead travelling crane with a self sucking dredge pump and introduced into a concentration pool for further sep... 該裝置使用后效果較好,造氣污水實(shí)現了閉路循環(huán),達到了零排放,亦取得較好的經(jīng)濟效益。
- The series of mechanical seal is applicable for self-priming dredge pump,oil residue pump or granular mud pump, with features of minor axial direction and compact structure. 本列系機械密封適應在自吸排污泵，油渣泵或含有顆料的泥漿泵，優(yōu)點(diǎn)是：軸向短，結構緊湊。
- The formulas for mechanical, hydraulic, cubage and overall pump efficiencies are given theoretically. 從理論上分析和表達了水泵機械效率、水力效率、容積效率及總效率；
