head of pump 中文意思是什麼
head of pump
解釋
泵的壓頭-
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。 -
Equally effective in checking back flows from head pressure on the discharge or suction sides of pump
無論是泵的排泄口的排出壓力，還是泵的吸入口，其流體止回的效果都是相同的。 -
Suction head of pump
泵的吸升高度 -
Research on anti - cavitation characters of a small - flow high - head vortex pump
一種小流量旋渦泵的汽蝕性能試驗研究 -
Second order polynomial regression mathematical model treatment of flow capacity - lift head property curve of centrifugal pump
揚程性能曲線的二階多項式回歸數學模型處理 -
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。 -
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。 -
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。 -
The direct optimal model of multi - objective mixed discrete variables for lager - scale water supply system was established, by replacing complicated network hydraulic equation with nodal pressures macroscopic model and relationship model between pump stations flow and head in water supply systems without tanks or towers, genetic algorithm was developed to solve the direct optimal model
以測壓點壓力宏觀模型、水源供水量和水源供水水頭之間的關系模型替代復雜的管網水力平衡方程，建立了大型供水系統的多目標混合離散變量的直接優化調度模型。在沒有水池和水塔的供水系統中，利用遺傳演算法對直接優化調度模型進行求解。 -
The company uses the low pressure casting in producing such as gasoline pump body, cylinder head, moto cylinder head and so on other aluminum alloy casting products, which has yearly capability of 3 million aluminum alloy castings and 200, 000 pcs finished products output, and is continuously evaluated as " advanced unit on quality ", " the excellent supplier ", " the high - quality
公司採用低壓鑄造生產汽車油泵體氣缸蓋摩托氣缸蓋等鋁合金鑄件產品，具有年產300萬件鋁合金鑄件的能力。公司連續多年被主機廠評為「質量先進單位」 「優秀供應商」 「優質服務獎」 。 -
A new concept to determine the delivery head of the pump and to set up the pressure of the system is proposed in this paper, based on the precondition to ensure the water head demand of any fire appliance at the most unfavorable point
從保證最不利處滅火設施水壓要求這一基本前提出發，提出確定穩壓泵揚程和設定壓力的新思路，並按3種情況分別作出說明。 -
First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low ; secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. therefore the h ~ q characteristic curve is often hump - shaped, and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend
首先由於它的揚程較高、流量較小，所以它的流道狹長，圓盤摩擦損失較大，效率相對較低；其次由於它的流道擴散較嚴重，易在葉片進口產生迴流和在出口產生脫流，揚程流量特性曲線易出現駝峰，在小流量工況下易產生不穩定現象；第三，由於其功率流量曲線呈現上升趨勢，在大流量區運行時電機易過載。 -
It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時，應選用轉矩按轉速平方降低特性的電動機；調速泵的運行經濟性受到管路阻力特性曲線的限制，其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制；在母管制系統中把部分定速泵改為調速泵時，應將性能較高的定速泵改為調速泵。 -
The hydraulic analysis of pump for suction penetration of bucket foundation as well as the pressure head relation between bucket cavity and pump inlet for different water depths and different pump mounting heights are described in this paper
對桶形基礎平臺負壓沉貫過程中汲水泵機進行了初步水力分析，討論了不同水深、不同泵機安裝高度情況下，桶腔和泵機進口之間的壓頭關系。 -
The great point in favour of this construction is that the medium only comes in contact with the inside of the hose and with the delivery valves and not, as with typical diaphragm piston pumps, with the pump cover or the pump head respectively
這種泵的結構上的另一個顯著的特點是介質僅與軟管隔膜的內側和閥門相接觸，而不是象典型的隔膜活塞泵那樣，介質同泵腔和泵蓋也都分別會有接觸。 -
It is elevated by feet - oil pump, mechanical transmission are applied for head operation in other parts of the unit, the feet inlay - bar is made of stainless steel
該手術臺上升、下降為腳踏油泵式，其餘動作均為機械傳動頭部操縱，踏腳鑲條均為不銹鋼製作。 -
By citing distribution piping loss curve, analyses the two commonly used control methods of constant pump head and constant remote circuit differential pressure and considers that control with a constant remote circuit differential pressure is the better
通過提出輸配管壓損曲線概念，從理論上分析了計量供熱變流量系統循環水泵常用的恆揚程式控制制和恆定最不利環路壓降控制兩種方案，認為恆定最不利用戶資用壓力方案節能效果較好。 -
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。 -
When the water head and the flow are given, we can regulate the pump ' s blade mounting angle to control the discharge of pump in this pumping station that contains only one type of pump. we also can determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it run optimally and economically
當水頭和抽水流量給定時，這類泵型單一的泵站，可以通過調節水泵的葉片角度，控制水泵的流量，併合理確定開機臺數，通過機組間的優化組合，使整個泵站的能耗最少，達到整體最優、經濟運行的目的。 -
Through incision experiment on the impeller of circulating pump times and times, the relation between the size of incision and the capacity and head of the pump was discussed, the law of performance was summarized after the impeller is incised, the existing formula was revised
摘要經過對混流泵葉輪多次切割試驗，探討了葉輪切割量與泵的流量、揚程之間的關系，總結了混流泵葉輪切割后的性能變化規律，進而對現有公式進行了修正。
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