我国已建及计划待建的大型泵站工程多为低扬程泵站。
Many of the large pumping stations built and to-be-built in China are low-lift pumping stations.
梯级泵站具有扬程高、能耗大的特点，对其进行优化调度，经济效益相当可观。
The multistage pumping stations have characteristics of high head and great energy consumption, so it is economical to make multistage pumping stations operate in optimization.
最开始是一辆七十年代的蒙特卡洛轿车。尼克用高扬程滚子凸轮和赛车级活塞把它的350发动机做了改装。
The first was a '70 Monte Carlo, whose 350 engine Nick had beefed up with a high-lift roller cam and racing pistons.
东江泵站结合扬程变化幅度大的特点，在技术改造中采用双速全调节叶片的大型轴流泵机组型式，取得了明显的节能效益。
In the technology reform of Dongjiang Pumping Station, a large scale axial -flow pump with double speed is used to fitting in with the nature of the pump head varying greatly.
它具有扬程高、流量小的特点。
介绍了用压差测量仪测试水泵扬程的方法。
It is described how to measure the pump lift with pressure difference meter.
流量不足或扬程太低。
料浆的循环靠大流量、低扬程的轴流泵推动。
The circulation of materials is pushed by a big flow and low-lift axial flow pump.
反之，已知流量、扬程和效率，也可求出轴功率。
Instead, the known flow, head and efficiency, shaft power can also be obtained.
贯流泵是适用于大流量、低扬程的一种经济泵型。
For large discharge and low lift head, it is especially suitable to use tubular pumps for their economic characteristics.
用户确认泵出口去丁醇处理装置的最大扬程是合适的。
Ctc maximum head is suitable for pump discharge to butanol handling facility.
它适用于要求中低流量、中低扬程的一般工业服务环境。
It is applied in general industrial services in which low to moderate flows are required with low to moderate heads.
它克服了现有旋涡泵的低效率、小流量和扬程有限等不足。
The positive vortex pump overcomes disadvantages of low efficiency, small flow and limited hoisting height of prior vortex pumps.
输送水时，叶轮切割后，泵的扬程、轴功率、效率都下降。
When pumping water, the head, shaft power and efficiency of the pump decrease with the reducing in impeller diameter.
潜油电泵机组是一种无杆深抽、排量大、扬程高的抽油设备。
Imersion oil electric pump unit is a kind of oil jack with rodless deep extraction, large discharge capacity and high lift.
随轴向间隙扩大，超小型泵的扬程系数、功率系数和效率都逐渐降低。
The head coefficient, power coefficient, and efficiency decreased with increasing axial clearance.
论述了离心泵转速提高对流量、扬程、功率、汽蚀余量等参数的影响。
The paper discusses the effect of rotation rate on property parameters such as flow volume, delivery lift, power and cavitation etc.
具有全扬程泵的特点，能够在全扬程范围内工作而保证电机不会过载。
It has full head feature. It can operate within the full head scope with assurance that the motor will not be overload.
数值结果表明，间隙增加，扬程下降，特别是越在小流量工况下越明显。
The numerical result shows increasing the tip clearance will reduce hydrostatic head, especially at small flow rate.
渣浆泵在工业生产中应用广泛，对泵的选择要考虑流量、扬程和汽蚀匹配。
Tail pump is widely used in the industrial production. When choosing a pump, the flow rate, lift and the cavitation should be considered.
介绍了如何通过计算消防水泵的扬程、流量和功率来选择消防水泵的型号。
The paper introduces how to choose fire water pumps through calculation of stroke, flow and power of fire water pumps.
水力部分：采用优秀水力模型设计，使水泵流量、扬程、效率三者更为合理。
Waterpower part: adopting the perfect waterpower model design to make the runoff, lift and efficiency of the pump more reasonably.
轴流泵具有流量大、扬程低的特点，广泛地用于农业排灌、城市供水等领域。
Axial flow pump with flow rate, head low, which is widely used for agricultural irrigation and urban water supply.
在效率合格的情况下，井用潜水泵的叶轮扬程和流量偏高时会产生无功损耗。
When submersible pumps for wells have qualified efficiency, the high head and flow of impellers will generate reactive power loss.
低扬程泵装置有多种型式，竖井式贯流泵装置是一种较新的低扬程泵装置型式。
Low head pump system has several types, among which pit tubular pump system is a new one.
丘陵地区提水灌溉需要的扬程高，水费占灌溉成本的比重大，农民的负担很重。
In hilly areas, water pumping irrigation lift is high, and the irrigation water fee is high because of the high pumping cost, so the burdens on farmers are very heavy.
本文从理论和实例出发，分析了在不降低效率的前提下，提高泵扬程系数的条件。
Based on the theory and the experience, the requirements for increasing the head coefficient under the condition of maintaining the efficiency were proposed in this paper.
在计算泵提供给气体的扬程时给出了三种算法，并对实例计算结果进行了分析比较。
About the calculation on the discharge head provided to gas by pump, the paper presents three kinds of calculation methods, analyzes and compares the case calculation results.
在计算泵提供给气体的扬程时给出了三种算法，并对实例计算结果进行了分析比较。
About the calculation on the discharge head provided to gas by pump, the paper presents three kinds of calculation methods, analyzes and compares the case calculation results.
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