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- control of pumps unit 泵组控制
- Fuzzy PID Control of Electro-hydraulic Servo Loading System of Pumping Unit 抽油机电液伺服加载系统的模糊PID控制
- Results are significant to reasonable design and selection of large step pump stations,structures and functions of pump unit equipments. 成果对大型梯级泵站形式和机组设备结构功能的合理设计选型有重大意义。
- Simulated loading and control of loading-actuating system of pumping units 抽油机负载-拖动系统的模拟加载与控制研究
- The differential equation of pump station start-up transient is established and derived from discharge balance and moment equation of pump unit. 摘要本文从水量平衡及水泵机组力矩方程出发,建立起水泵从起动到同步的微分方程式。
- Its feature lies in the inverter control of pump, the undisturbed switch of motor and the driver programming. 在水泵变频调节、电机无扰切换和设备驱动程序编制等方面有自己的特色。
- The five factors of pump unit maintainability are determined: maintenance objects, given conditions, given processes and means, given time, and given function. 确定了水泵机组维修性的五要素:维修对象,规定条件,规定程序和方法,规定时间,规定功能;
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- In order to solve the great starting current and occurrence of water hammer in pump unit, the soft starting controller of motor based on PIC microprocessor was proposed. 为解决水泵机组起动电流大和易出现水锤现象的问题,提出一种以PIC单片机为控制核心的电动机软起动控制器。
- I lost control of myself and hit him. 我控制不住自己,打了他。
- Analysis of kinetic and dynamic characteristics of pumping unit with six-bar linkage. 六连杆抽油机的运动和动力特性分析。
- I lost control of myself and hit Tom. 我控制不住自己,打了汤姆。
- He wore a new pair of pumps for the dance. 他穿了一双新的轻便舞鞋去跳舞。
- In addition, an intelligent controller is developed for the control of the actuating device of the pumping unit. 并可在此基础上,研制一种智能控制器,用于控制油田抽油机拖动装置,使抽油机尽可能实现高效和节能运行。
- The beam and crank pin bearing adopt tip bearing structure to decrease the shaking due to the install difference and operation of pumping unit. 横梁轴承及曲柄销轴承采用调心轴承结构,以降低安装造成的误差和抽油机运转时的振动。
- Enemy forces are in control of the city. 敌军控制著这座城市。
- To provide a basis for precise calculation of pumping Unit, it is necessary to make a elastodynamic analysis on the u-nit. 要对抽油机的设计提供较为精确的理论计算依据,必须对抽油机进行弹性动力分析。
- They were in complete control of the situation. 他们完全控制了局势。
- In the light of the problem with oil leak of pumping unit reducers, a new seal structure for the reducer shaft end is designed. 针对在用抽油机减速器普遍存在的渗漏油问题,提出了一种新型减速器轴头密封结构。
- If the efficiency of pumping unit was improved to meet the foreign standard, we would save more than 300 million yuan from the economization of electric energy consumption. 如果将抽油机运行效率提高到国外水平,每年可节省3亿元以上电费开支。