The technology process and the control demands of a waste water pump are presented, and the design of hardware and software based on PLC for the pump station automatic control are described.
介绍了一个污水泵站的控制工艺和控制要求，阐述了泵站自动控制系统中plc的硬件、软件设计。
Therefore to understand a single pump or more transmission characteristics of the noise, heat pump unit base to explore ways to control noise, has a practical significance in general.
因此了解单台或多台热泵的噪声传播特性，探讨热泵机组群噪声防治的方法，具有一定的普遍现实意义。
The control scheme for multi pump operation is thus improved, which changes pump frequency and controls pump operation according to water consumption.
改进了多台水泵的控制方式，即根据系统用水量改变水泵频率从而控制水泵的运行情况。
This paper describes on Automatic Control System of the pump station in the Liuzhou old-airport, and a new designs methodology of the pump station automation is given.
本文以柳州市旧机场加压泵站为例，介绍了一种针对加压泵站自动化的控制系统，为以后加压泵站自动化控制设计开辟新思路。
The feed pump system is controlled by single loop control theory, but it is truly multivariable system, so feed pump control system in use exist problems about safety and efficiency.
现有给水泵系统都采用单变量系统进行控制，但该系统本质上是多变量系统，用单变量方法解决多变量问题给系统安全经济运行带来隐患。
Temperature difference control ADAPTS to the control of two water systems of ground source heat pump, considering the character of water systems of ground source heat pump.
考虑土壤源热泵水系统的特点，说明土壤源热泵两个水系统控制适合采用温差控制。
To improve the quality of electric submersible pump (ESP) and extend the pump checking period of the ESP Wells, a multifunction automatic control and test system for ESP is developed.
为了提高电潜泵产品质量，延长电潜泵井的检泵周期，研制了电动潜油泵多功能自动控制测试系统。
Based on the application analysis of hydraulic pump test-bed, an automatic testing system of hydraulic pump combined with the technologies of measurement and control is designed.
在分析液压泵试验台应用现状的基础上，设计出一种结合测量和控制技术的液压泵自动测试系统。
This paper described the feature of fire pump, and designed a control system of fire pump.
论述了消防泵的特点，并设计了一个消防泵控制系统。
Solenoid operated pump control for controlled opening and closing on pump start-up and shut-down.
通过在泵开和关时电磁阀所进行的开启和关闭来操作泵控制阀。
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 key device is the oil pump, computer control to the quantity of core is oil pumps, computer control the pulse type oil pump and the full combustion goodly.
取暖器中的关键装置是燃烧器中的油泵，单片机对油泵控制的质量是燃烧器控制的核心。
The paper, focusing on the control system's retrofit of Jiaozuo Power Plant's ash removal isolation water pump, elucidates the advantage and importance of minicomputer controlling the water pump.
该文针对焦作电厂除灰水隔泵控制系统的改造，阐述了水隔泵微机控制的优越性和重要性。
This paper introduces the application of PLC in the automatic control system of pump used in ship, and gives new function to pump control system.
介绍了PLC在船舶泵自动控制系统中的应用和泵控制系统的新功能。
Remote control test for fire pump and emergency fire pump.
消防泵、急消防泵遥控操作试验。
It responsible for the pump station reliable operation, on the other hand could control the pump flow, and affect the system's operating characteristics.
它一方面担负着水泵站可靠运行，另一方面可以控制水泵流量，影响系统的工作特性。
The assistant drillers practiced mud pump changing, remote and locate control together with the repair of the mud pump etc.
副司钻练习倒换泥浆泵、远控近控和修理泥浆泵等。
The hydraulic profile control and water shutoff pump is a hydraulic driven reciprocating pump with double cylinders and single action.
液压调剖堵水泵是一种液压驱动的双缸单作用往复泵。
The pump consists of prime motor, multi stage centrifugal pump, seat, wire and control, in which the key part is the prime motor.
它由电念头、多级离心泵、底座、电缆和节制屏构成，个中电念头是该系统的要害部件。
The key device is the oil pump, computer control to the quantity of core is oil pumps , computer control the pulse type oil pump and the full combustion goodly.
取暖器中的关键装置是燃烧器中的油泵，单片机对油泵控制的质量是燃烧器控制的核心。实践证明，应用单片机控制脉冲式油泵能够较好地实现充分燃烧。
From the viewpoint of the systems, we establish dynamics model based on the hydraulic reciprocating pump based on control of rotary valve to drive triplex reciprocating pump end.
从系统的观点出发，建立了基于转阀控制的液压三缸往复泵的系统动力学模型。
PEP - II gear pump and specification of pump matching element, which can ensure the user's choice, fast heating and heat control.
PEP-II齿轮泵带有与泵的规格相匹配的加热元件，可供用户选配，这可保证快速加温和热量控制。
And fire pump can be in accordance with the design requirements of the control function is to ensure the normal start of the fire pump key factors.
而消防水泵能否按照设计要求实现控制功能是保障消防水泵正常启动的关键性因素。
SCM C-51 as control core applied in the variable axial piston pump is introduced briefly in the paper, including work principle, hardware design concept, and main programmer diagram of digital pump.
文章介绍了作为控制核心的单片机C 5 1在数字泵中的应用，包括数字泵的工作原理，硬件的设计思路和主程序框图。
Note: auto-control hydraulic test pump achieves automatic control of pressure by adding a set of control devices on the basis of the original electric hydraulic test pump.
注：压力自控试压泵是在原电动试压泵的基础上加装一套控制装置，来实现压力自动控制功能。
The results show that for the common pump control methods, the third power relation between the pump rotate speed(water volume) ratio and the shaft power ratio is not true;
分析结果表明，对于常用的水系统控制方式而言，水泵转速（流量）比与轴功率比的三次幂关系不成立；
The utility model discloses a displacement pump flow control device which controls the flow of the displacement pump through an electromagnetic valve and two one-way valves.
本实用新型是一种柱塞泵流量控制装置，是利用一个电磁阀和两个单向阀控制柱塞泵的流量。
A control valve, the valve position of which is controlled by the pressure on the slave cylinder side of the pump, is arranged parallel to the pump.
与该泵并联地设置有一个控制阀，该控制阀的阀位置通过该泵的主动缸侧的压力来控制。
A control valve, the valve position of which is controlled by the pressure on the slave cylinder side of the pump, is arranged parallel to the pump.
与该泵并联地设置有一个控制阀，该控制阀的阀位置通过该泵的主动缸侧的压力来控制。
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