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泵系统
    Transient Characteristics of Pumping System During Starting Period
    泵系统起动瞬态特性(一)
    A Study of Valve Stroking in the Pumping System for Waterhammer Protection
    泵系统水锤最优阀调节研究
    THE DESIGN OF DREDGING PUMPING SYSTEM
    挖泥船泥泵系统设计初探
    APPLICATION OF OPTIMIZATION DESIGN TECHNIQUES TO SUCKER ROD PUMPING SYSTEM
    有杆泵系统优化设计技术的应用研究
    Study on safety estimation methods of the electric submersible pumping system
    潜油电泵系统的安全评价方法研究
    Program Control's Retrofit of Jiaozuo Power Plant's Water Isolation Pumping System
    焦作电厂水隔泵系统程控改造
    Control and Adjusting Regime Point of Secondary Pumping System
    二次泵系统的控制方式及调节工况点
    Valve-Stroking of gas-liquid two phase transient in pumping system
    基于V-S的泵系统气液两相瞬变流控制的研究
    Deep heavy oil well completion string and rod pumping system optimization
    深层稠油完井管柱及有杆泵系统优化研究
    Evaluating Risk Rank of the Electric Submersible Pumping System Using Evaluating-point Approach
    采用评点法评定潜油电泵系统的风险等级
    At last by using Monte Carlo statistical simulation way , I confirmed the statistical model of the lifetime of system , acquired the reliability index of system , realized the qualitative analysis and quantitative elevation to the reliability of the electric submersible pumping system .
    最后利用Monte Carlo统计模拟法,确定出系统寿命统计模型,得到系统可靠性指标,实现对潜油电泵系统可靠性定性分析和定量评价。
    Chapter 3 analyses and discusses the operating economy of the circulating-water system, analyses the two circulating-water systems, and does some single calculation to the certain power plant circulating-water system, and does the optimum dispatch to the circulating-water pumping system through the usage of the dynamic classified rule.
    第三章针对火电厂两种循环水系统,对其进行了系统分析,并计算了某电厂循环水系统的热经济性,然后运用动态规划法对火电厂的循环泵系统进行了实时优化调度。
    A theoretical study has been made on the transient characteristics of a pumping system which consists of a vertical pump unit with a siphon discharge conduits during its starting period.
    本文从理论上分析了泵系统中电气、机械、水力和空气动力特性,推导了表达泵系统起动瞬态特性的数学模型;
    This mathematical model is better theoretically than one-dimensional and two-dimensional models which take sucker rod string only or sucker rod string and liquid column (unanchored tubing) only into consideration, so it may give a powerful tool for predicting the dynamic parameters of a sucker rod pumping system and well site diagnosis can be also.
    该数学模型比只考虑抽油杆的一维振动数学模型以及只考虑抽油杆、液柱(油管不锚定)的二维振动数学模型理论上要更加完善,因而可以成为预测有杆泵系统的动参数及进行故障诊断的有力工具。
    This paper presented a mathematical model of the optimum valve stroking of waterhammer control and protection in pumping system. Combining with a practical project, the authors have made theoretical calculations and tests in the study of optimum two-stage closure policies of butterfly valve and discussed the characteristics of waterhammer protection of valve stroking.
    提出了泵系统水锤控制与防护的最优阀调节数学模型,结合实际工程进行了两阶段关闭蝶阀的最优关阀程序的计算分析与模型实验研究;
    The polished rod load is cacu lated in consideration of the actual conditions of the sucker rod, subsurface pump and the polished rod motion pattem,and a set of recursion formulae describing the interrelationship of the pumkping unit and the sucker ed pumping system are established.
    计算悬点载荷考虑了抽油杆、抽油泵及悬点运动规律等实际情况,建立了一套递推公式,反映了抽油机与有杆泵系统之间的相互作用关系,提出了一种求超高转差率电动机驱动抽油机真实运动规律的新方法。
    A new method for deriving the real motion pattern of ultra-high slip motor drive pumPing unit, which is suit able for dynamic analysis of various kinds of sucker rod pumping system, is presented.
    应用本文介绍的方法能真实地反映机-泵系统之间的匹配关系,获得的运动真实,精度高,适用于各种有杆抽油设备的动力学分析。
    Dredging pumping system for a cutter suction dredger is described in the paper. Also the design sequences and methods for the system are outlined.
    本文作者结合具体挖泥船的设计对泥泵系统作了一些探索,并简要阐述了1750m3/h绞吸式挖泥船泥泵系统设计的顺序和方法.
    In this paper, mathematical models for the boundary conditions of a complex pumping system, which has long pipeline, high head, multistage pumping stations each with multi parallel pumps, are developed by use of characteristics method, hydraulic transients caused by power failure of whole or part of the pump units are calculated, the reliability of the cooperation of two stage closure valves and surge tanks for waterhammer control is studied, technical references for project design are proposed and conclusions beneficial to the optimal design of the system are put forward.
    针对万家寨引黄工程长管道、高扬程、多级泵站串联、各泵站多台机组并联的复杂泵系统结构,采用特征线法,建立了边界条件的数学模型,计算分析了全部及部分机组事故停泵水锤过程,研究了采用两阶段关闭阀与调压塔配合进行水锤控制的可靠性问题,为工程设计提供了技术依据,为系统优化设计得出了有益的结论。
    Control system has four main components: the programmable logic controller (PLC), the pumping system, metal level sensor and the piping system. The key innovation of the control system is the level sensor.
    控制系统主要有4个部件——逻辑程序控制器(PLC)、泵系统、金属液面传感器和管道系统,其中金属液面传感器是该系统的关键创新点。
 

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