CAJ | 학술논문

变速泵能适应船舶海水冷却智能管网变工况运行时管网水力特性和流量需求变化。本文以各海水冷却用户供水冗余量最优及泵站能耗最低为目标，建立离心泵最优调速数学模型，并以最小二乘准则为参数判断依据，利用离心泵流量-扬程试验数据，提出离心泵多变量最优调速模型参数辨识方法。运用AMESim软件，分别以定转速模式、双转速模式和最优调速模式，对某船舶海水冷却管网变工况运行进行仿真研究。研究结果表明，相比定转速模式、双转速模式及最优调速模式不但可以使变工况运行条件下各用户供水冗余量大大减小，而且使得离心泵功耗大大降低。
변속빙능괄응선박해수냉각지능관망변공황운행시관망수력특성화류량수구변화。본문이각해수냉각용호공수용여량최우급빙참능모최저위목표，건립리심빙최우조속수학모형，병이최소이승준칙위삼수판단의거，이용리심빙류량-양정시험수거，제출리심빙다변량최우조속모형삼수변식방법。운용AMESim연건，분별이정전속모식、쌍전속모식화최우조속모식，대모선박해수냉각관망변공황운행진행방진연구。연구결과표명，상비정전속모식、쌍전속모식급최우조속모식불단가이사변공황운행조건하각용호공수용여량대대감소，이차사득리심빙공모대대강저。
As seawater-cooling intelligent pipe-network performances under varied conditions, thehydraulic characteristicand flow requirements of the seawater users in the pipe network change. Variable speed pump could meet the changes. Aim to reduce redundant seawater supply of the users and energy consumption of the pump,theoptimal speed mathematical model of centrifugal pump in the pipe network is established. Base on least-squares approach, with the flow - liftexperimental data of centrifugal pump, parameter identification method of centrifugal pump′smultivariableoptimal speed characteristics is proposed. Using AMESim,inthe fixed-speed mode, dual speed mode,the optimal speed mode,the variant operations of a ship′s seawater cooling pipe network are simulated, respectively. The results show that compared to fixed speed mode or dual speed mode, the optimal speed mode not only greatly reduce the redundant seawater supply of the users but also the power consumption of centrifugal pump.