Variable Speed: New variable speed pumps offer a noticeable improvement over accumulator tank systems.
可变速的水泵：新的可变速的泵在压力鼓系统上面也有改进。
Using high speed pumps to replace gear pumps for ammonia recycling, satisfactory results were achieved.
氨液循环泵由齿轮泵改为高速泵，效果较好。
Proposes methods such as by-pass with chiller, multi-grade pumps and variable speed pumps to optimize series ice storage systems.
对于串联系统，则提出采用制冷机旁通、多级泵和变频泵的方法使系统配置更加合理。
The efficiency of rotary-jet pumps under the operation of low flow and high delivery was higher than those of multistage pumps and high speed pumps through analyses.
通过分析得出，旋喷泵在小流量、高扬程工况下运行时的效率高于多级泵和高速泵。
Though setting up the model to calibrating the level control parameter PID, the system dynamic performances is optimized in regulating the upper pool water level by variable speed pumps.
建立了整定水位PID调节器的控制模型，优化变速泵控制前池水位变化系统的动态品质。
Reciprocating pumps convert rotary motion to linear motion. Pump speed in RPM determines the pumps output volume for any given combination of cylinder bore and piston stroke.
循环泵将曲轴旋转运动转化为柱塞的直线运动。泵速转每分钟决定了任何气缸和活塞组合的排泵量。
Frequency control the use of fans, water pumps, type of machinery to carry out speed control method to regulate the flow of energy conservation, economic efficiency is very important significance.
采用变频调速控制，对风机、水泵类机械进行转速控制来调节流量的方法，对节约能源，提高经济效益具有非常重要意义。
These low speed high pressure pumps are especially designed for continuous digester feed in the pulp and paper industry.
两者为高压低速泵，专为造纸行业中蒸煮器连续进料而设计。
The structure design, hydraulic design, and some noticeable problems of the high temperature and high pressure circulating wax pumps with a 24 specific speed were described.
阐述了比转数为24的高温高压循环蜡泵的结构设计、水力设计及一些需注意的问题。
Cascade drive is a kind of speed regulation with high feature and low cost for fans and pumps.
对风机和水泵类负载，串级调速是一种高性价比的节能调速方法。
First this paper research on using variable speed fluid couplings in speed regulation control system of dual pumps or fans machines running in parallel mode.
本文首先对调速型液力偶合器应用于泵或风机双机并联运行的调速控制系统进行研究。
It is the effective countermeasure against throttling loss in pumps to adopt speed regulator, so as to adjust pump speed according to load variation.
采用调速技术，使输油泵适应负荷变化，改变转速来调节输油泵的运行点，才是解决泵节流损失的措施。
Measurement of extra high speed rotation shaft torque of space pumps with grating is introduced.
采用平面光栅式转矩测量的方法来测量航天叶轮泵超高速回转轴的转矩。
The research on design method and test for low specific speed impeller are recounted specifically. It is of very importance to further develop and use in low-flow chemical centrifugal pumps.
着重叙述了低比转数叶轮的设计方法、试验研究，对进一步开发、应用小流量化工用离心泵具有重要指导意义。
Correlative cause for speed wobbling of PL and PM pumps which are used for generating electricity is analyzed, and improved design is made for it.
针对配发电用柴油机的PL,PM型喷油泵在试验中出现调速段游车不稳现象，技术人员分析其产生的原因并进行了相应的改进设计。
Frequency control the use of fans, water pumps, type of machinery to carry out speed control method to regulate the flow of energy conservation, improve cost-effectiveness of great significance.
采用变频调速控制，对风机、水泵类机械进行转速控制来调节流量的方法，对节约能源，提高经济效益具有非常重要意义。
The development trends of pumps were discussed from the aspects such as efficiency, new materials, seal, pumps of varying speed and computer applications.
从泵的效率提高、泵的新材料、泵的密封、变速泵、计算机在泵上的应用等几个方面分析了国外工业泵的发展趋势。
In this paper, influences of supply capacity and prepressure of pumps, air speed of quench wind on yam fineness, oil pick-up and their CV values are discussed.
讨论了计量泵的泵供量、泵前压、侧吹风风速等工艺条件对产品的纤度、条干及上油率的影响。
Can adjust the speed steplessly with constant torque. such as fans, pumps and such instruments with decreasing load.
更适用于拖动转矩递减的离心式水泵和风机负载。
The results indicate that the target of energy saving can be achieved by controlling the pumps speed and amount.
研究结果表明，利用该方法可达到通过控制转速和开启台数实现排水泵站节能降耗的目标。
Is based on market demand derived from a low speed, gear-type pumps.
是根据市场需要派生出的一种底速齿轮式输送泵。
A practical example showed that the efficiency of pumps with low specific-speed could be improved by using the calculation method presented, so that the design theory of such pumps was substantiated.
实例表明：提出的计算方法能够提高低比转速离心泵的效率，充实了低比转速离心泵的设计理论。
Taking the pump station of West-South Oil Product pipeline as an example, dynamic programming theory is adopted to settle pump running problem of the whole pipeline with speed variable pumps.
以西南成品油管道泵站为例，运用动态规划的原理，解决配有调速泵的管道全线开泵方案问题。
The lapse speed operation ci pumps is a kind of energy-saving regulation. The economical operation of the system presuppose the determination of high-efficient lapse speed range of pumps.
水泵降速运行是水泵的一种节能调节方式，确定水泵的高效降速范围是保证系统经济运行的前提。
At the high load condition, change the rotating speed of steam or electricity feed water pumps to ensure the water level of the drum.
高负荷时通过改变给水泵转速改变给水量，用三冲量系统控制汽包水位。
The electro-hydraulic servo system directly controlled with speed variable pumps is a competitive and environmental beneficial driving principle.
介绍新提出的用变转速液压泵闭环控制的差动缸电液伺服系统。
In general, a double cylinder single acting piston pumps rotates at a constant speed, this results in considerable fluctuation in the flow curve.
通常双缸单作用活塞泵的恒转速运行会导致管路流量波动，使之在恒流量场合较少应用。
Based the brake horsepower characteristics of low specific speed centrifugal pump and the required features of pumps used for agriculture, the concept of non - overload centrifugal pumps is conceived.
针对农用泵(运行工况多变且出口无流量调节阀)的特点和低比转速离心泵的轴功率在大流量区运行易过载的特性，提出了无过载离心泵的概念。
Based the brake horsepower characteristics of low specific speed centrifugal pump and the required features of pumps used for agriculture, the concept of non - overload centrifugal pumps is conceived.
针对农用泵(运行工况多变且出口无流量调节阀)的特点和低比转速离心泵的轴功率在大流量区运行易过载的特性，提出了无过载离心泵的概念。
应用推荐