Baths include a two-speed pump for closed loop applications.
双速压力泵更有利于浴槽密闭循环使用。
Points for attention in the design and application of variable frequency and speed pump system have been proposed as well.
指出了变频调速泵送系统在设计和应用中的注意事项。
After thoroughly analysing the details of the ultra low specific speed pump, a series of experiment studies are carried out.
因此，针对超低比转速泵的具体情况，进行了提高汽蚀性能的试验研究。
Transport high viscosity medium, low speed pump to be elected, if the low viscosity, the corresponding high-speed selectable.
输送高粘度介质时，泵应选低转速，若粘度较低，相应可选择高转速。
It is point out that loading LOX via variable speed pump can reduce throttle losses as well as can reduce the LOX temperature raise.
指出采用调速泵加注可以消除因节流引起的能量损耗，降低液氧的温升。
High-speed pump belongs to a specific centrifugal pump, and its appearance has put forward new requests and challenges for those designers.
高速泵是一种特殊的离心泵，它的出现对流体输送机械设计人员提出了新的要求和挑战。
Running conditions of parallel-connected variable and constant speed pump are discussed using pump performance curve, and the correct switch steps are pointed out.
利用特性曲线对变速泵与定速泵并联运行工况进行了讨论，指出其正确切换步骤。
In this paper, disadvantages of using throttle to adjust and maintain water levels of deaerator and condenser in constant speed pump condensate system were presented.
在恒速泵凝结水系统中，依靠节流调节维持除氧器和凝汽器水位存在种种缺陷。
Calculation by theoretical analysis may ascertain the ideal rotate speed of variable-speed pump and ideal opening of regulating valve, completes adjust process at one time.
经理论分析计算，确定变速泵理想的转速，确定调节阀理想的开度，调节过程一次完成。
Simulation analysis was carried out for the variable speed pump-control-motor hydraulic system. Mathematic models of inverter, asynchronous motor, fixed pump and load were set up.
本文对变转速泵控马达液压系统进行了仿真分析，建立了系统中变频器、异步电动机、定量泵、马达以及负载的数学模型。
The horizontal high - speed pump in replacing the multi - stage centrifugal pump is adopted. Andits seal and isolate heat parts are also improved. Good effect can be gained after improvement.
高压凝液系统采用卧式高速泵替代原多级离心泵，并对其密封和隔热部分进行改进，改造后获得良好效果。
In this paper, the principle of variable speed pump control hydraulic differential cylinder is designed, and the simulation model of system is built, and the simulation research is carried out.
给出了采用变转速泵控闭式回路控制差动缸的原理，建立了该系统的数学模型，进行了计算机数字仿真研究。
In the process conditions permit, the change in pump flow, head, speed and medium operating temperature operating parameters, to avoid the occurrence of cavitation.
在工艺条件允许的情况下，改变泵的流量、扬程、转速及介质的操作温度等操作参数，可以避免汽蚀的发生。
This pump impeller blades can be adjusted automatically to adapt to speed, fluid viscosity and pressure.
这种泵的叶轮叶片可以自动调节来适应转速、流体粘度和不同压力。
The efficiency of steering pump of port tractor lost very heavy when engine was in high speed.
港口牵引车液压系统中的转向泵在发动机高速状态时的能量损失较大。
Petrochemical equipment is often 24-hour continuous operation, when the work pressure pump should be made much lower than the rated pressure, and speed work should also be lower than the rated speed.
石油化工设备常常是24小时连续运转，这时泵的工作压力应该取得比额定压力低得多，且工作转速也应该低于额定转速。
Rationally define the work gear pump speed, gear and the axis of rotation to avoid engaging resonance frequency, can prevent noise intensified.
合理确定齿轮泵的工作转速，使齿轮与轴的转动避开啮合共振频率，可以防止噪声加剧。
A flow meter in the potable water line feeds information to the control system which controls the pump speed to control ratio.
饮用水管道中的流量计向控制系统传送信息，控制系统控制泵的速度以控制比率。
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。
Impurity pump mechanical seal after static test, the operation of high-speed rotation of the centrifugal force generated will inhibit the leakage of media.
杂质泵用机械密封经过静试后，运转时高速旋转发生的离心力，会克制介质的泄露。
Under this situation, we must reduce the speed of pump, increase the power of the motor, increase the import and export of pipe diameter to reduce the flow resistance of the medium.
在这种状况下，必须降低泵的转速，加大电机的功率，加大进出口的管径来减少介质的流动阻力。
It will give an indication of the circulating pressure drop to be expected at the anticipated killing pump speed.
慢循环率将按预期压井泵速期待的循环压降给定读数。
The experimental results and design theory for low-specific-speed centrifugal pump with splitter blades are detailed.
详细地综述了国内外长短叶片离心泵的试验研究、设计理论研究方面的成果及现状。
The turbine will operate at high temperature and high rotational speed, its pump will work under the conditions of lower or normal temperature, high pressure and high rotational speed.
涡轮在高温、高转速下工作，泵在低温或常温、高压、高转速下工作。
As there were leak on contact place between shaft and rotor body in built up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil sealed sliding vane rotary vacuum pump.
组合式空心转子由于轴头与转子体之间的结合面存在着渗漏，使泵的抽气效率性能下降，从而影响其在应用中的效率。
Recently, the CCR of Qilu Petrochemical refinery hydrocracking workshop successful switch to domestically produced high-speed secondary pump mechanical seals, modified to run in good condition.
近日，齐鲁石化炼油厂连续重整车间加氢裂化高速泵成功改用国产二级机械密封，改造后运行状况良好。
Based on principle in speed regulation of centrifugal pump, method of speed regulation calculation for energy saving and its effects have been studied.
本文从离心泵变速调节原理入手，探讨了以节能为目标的离心泵变速调节的计算方法和效果。
At the same time, constant engine speed stabilizes output displacement of hydraulic pump and then stabilizes travel speed and vibratory frequency in turn, so that compaction quality is increased.
同时，发动机转速的恒定也使液压泵输出排量稳定，进而保证了行走速度和振动频率的稳定，提高了压实质量。
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。
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。
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