泵的揚程 的英文怎麼說
中文拼音 [bèngdeyángchéng]
泵的揚程
英文
lift of pump-
This is portable pump with strong suction and medium head doss, equiped with extraordinary hair collector ; the body is made of themal plastic of strength ening fiberglass with good corrosive and impact resistance ; and with the advan tages of high flow, quiet
這是一款輕便、自吸式、中等揚程的水泵、配有特大的毛發收集器;泵體由玻纖增強的工程塑料注塑而成;有良好的抗沖性和耐腐蝕性;此水泵具有高流量、運行安靜之優點。In accordance with the characteristics of multi - units and high - lift pump station and the application to the actual project, the main pumping house and the auxiliary pumping house are arranged in combination with the intake pond, and then the understructure is integrated with the main pump house ; with which the working space is fully used with convenient management and investment saving
摘要結合工程應用,針對多機組、高揚程離心泵站的特點,將主副廠房及進水池結合布置,下部結構與主廠房形成整體結構,既便於維護管理,又節省投資、充分利用空間。In our northwest region, centrifugal pump are widely adopted in high - lift pumping station and for various reasons, few research has been done on the " pumping station unit commitment decision support system " with consideration in secure and economic operation. while it came to an unavoidable question after the implementation of computer monitoring control system
我國西北高揚程泵站大多採用離心泵,由於種種原因,綜合考慮安全運行與經濟運行的「泵站機組啟停決策支持系統」尚少有研究,在泵站實施計算機監控之後這類問題已是不可迴避的問題。Flow characteristics of moveable teeth gear rotator pump
農用高揚程大流量活齒齒輪轉子泵的流量特性According to pump performance curve shown we can get that the distance h is changed with the rotate speed n in the same point q, and the flux q is changed with the rotate speed n in the same point h. from the curve we can get the rule that the distance and rotate speed are in direct with ratio at the same flux point, and the rotate speed and the flux are also in direct with ratio at the same distance point
根據相似定律:流量與轉速的一次方成正比;揚程與轉速的二次方成正比;功率與轉速的三次方成正比。即在降低轉速,調低水泵出水揚程的同時,功率下降的幅度非常大,從中可以節省相當大的電能。完全應在高水位時降低水泵機組轉速,從而使電機的輸出功率隨著轉速下降值與轉速原值商的三次方關系下降。Cw the feature of cw magnetic - driving vortex pumps is little capacity, high - head, it can convey the fluid containing 20 percent of gas and non - lubricative, also can be used to the occasion where npsh is low
Cw型磁傳動旋渦泵,是小流量高揚程應用最理想的選擇;可輸送含有20 %氣體的介質,可應用於非潤滑性流體和汽蝕余量很低的場合。At the same time, a lot of electrical energy is wasted when the level is high and the working curve is displaced. so urgent affairs are choosing right timing ways to rebuild the pumps. applying frequency conversion timing to wind machines and pumps is an important technology in our country
設計都按照長江、漢水百年一遇最低水位選擇水泵出水揚程,這樣在高水位時往往由於揚程太大而偏離水泵的工作高效區,浪費了大量電能,選擇合適的調速方式對泵船水泵機組進行節能改造,成為當務之急。It is a vane pump with high head, small flow and low specific speed, which is smaller, flight and simpler in structure than positive displacement pump mulfistage centrifugal pump, and may handle liquid of high gas or steam content
該泵是一種高揚程,低比速的葉片泵,比容積式泵和多級離心泵體積小、重量輕、機構簡單等優點,並可以輸送氣體或蒸氣含量較輕的液體。Study of method about how to measure mineral pump lift
礦用水泵揚程的測量方法研究The pressure of pressure stabilizing pump will be settled on the basis of its delivery head which is not calculated but determined by the delivery head of main fire pump as the function of it is to stabilize the pressure inside the fire water system
穩壓泵的壓力設定值決定於穩壓泵揚程,穩壓泵的揚程一般不另行計算,而是採用消防主泵的揚程,其原因在於設置穩壓泵的目的是使消防給水管網的水壓穩定。By this way, however, the working pressure of the fire water system will be at higher level in case of the central stabilizing high pressure system and undesirable consequences related to the pressure - acceptance of the pipe and the joints shall come forth
而在集中穩高壓給水系統中,這樣確定的穩壓泵揚程及設定壓力值,往往使消防給水管網始終處于較高壓力工況,因而使管網內水壓與管道及其介面的承壓能力這一對矛盾趨于突出。Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation
作者在參閱大量國內外有關文獻,著重探討了水泵流量、揚程、軸功率、轉速的測試原理和測試方法,提出了採用電測法並結合電機效率特性曲線測量水泵軸功率,從而避免了損耗分析法中大量復雜的中間過程,滿足了試驗裝置的自動化測量要求;採用漏磁感應線圈法測量電機轉速,彌補了其它轉速測量方法對水下電機測試的局限性,適應了萊恩公司開發潛水電泵的實際需要。H the high - raisepitch of pump also must install inverted - end valve at export - pipeline, to prevent the water - hammer of closed suddenly to destroy
8揚程高的泵在出口管路上還應該安裝逆止閥,以防突然停機的水錘破壞Three mathematical models are presented to express the characteristics based on the systematical analysis of mechanical, hydraulic and fluid dynamic characteristics during three transient process, and numerical calculation methods are carried out to the three mathematical models. with the rigid water hummer theory and hydraulic characteristics, this paper has improved the boundary condition equation at pump during the suspending period, and drew a simplified mathematical model
針對大型低揚程泵站過渡過程的具體特點,利用剛性水錘理論,對事故停泵時泵處的邊界條件方程進行改進,並結合泵裝置水力特性,得出大型低揚程泵站停泵過渡過程簡易計算方法的數學模型;針對具體數學模型編製程序進行計算求解。A new type of very low specific speed pump ? roto - jet pump is presented for low flowrate and high head transportation, which is introduced at the end of the thesis
論文最後主要研究了一種隸屬于極低比轉數離心泵范疇的新型泵? ?旋噴泵,它是一種新型的石油化工用泵,具有流量小、揚程高、流量揚程曲線平緩的特點。In present thesis, the actual design theories and methods for super - low specific - speed pump are introduced first, including " the increased flowrate design method ", " the method of anti - hump on h ~ q characteristic curve ", " non - overload design method ", " the design method of complex impeller " and so on. according to these methods, 5 types of impeller have been designed
論文首先對極低比轉數離心泵的現行設計理論和設計方法作了介紹,包括加大流量設計法、減小或消除揚程曲線駝峰的途徑、無過載設計及復合葉輪設計法等,並按照這些方法設計了五種葉輪。The distance of pumps in water factory is designed in the light of the lowest river level for the purpose of the best distance
沿長江、漢水流域一帶,城鎮供水廠取水水泵機組為了保證在沽水期低水位時,水泵機組的出水揚程。The relational formula between axial gap and radial gap and relational formula with considering centrifugal thrust effect was solved
並應用連續方程和水泵勢揚程方程式,求出了間隙?漏量是其間隙幾何參數及泵揚程的函數關系式。According to the common method of the performance calculation of centrifugal pump, the author calculated the head and power of the pump, showed the way to get the pressure of the outlet
根據一般離心泵的計算方法,結合螺旋型離心泵的特點,論文計算了泵的揚程和功率,給出了在已知流量和進口壓力的情況下求得出口壓力的方法。The results show that the screw centrifugal pump is a type of well - working pump with good performance. it has higher head and efficiency with better ability of anti - erosion
研究結果表明,螺旋型離心泵是一種性能優良的增壓泵,具有較高的揚程和效率,良好的抗氣蝕性。分享友人