CAJ | 학술논문

以并联水泵供水的循环冷却水系统为节电对象，分步实施了水泵叶轮切削，单台水泵变频调速的组合控制方案，优化了水泵的工作点，实现了自动调节的恒压供水，完全消除了泵后闸阀的节流损失，总体节电率达46.8％。
이병련수빙공수적순배냉각수계통위절전대상，분보실시료수빙협륜절삭，단태수빙변빈조속적조합공제방안，우화료수빙적공작점，실현료자동조절적항압공수，완전소제료빙후갑벌적절류손실，총체절전솔체46.8％。
This paper studied the circulating cooling water system with pumps in parallel for saving e-lectricity,and introduced implementation of combination plan of pump impeller trimming plus a single pump′s VFD.The system has achieved optimization with pump working point and automatic constant control with water supply pressure,completely eliminating pump valve throttling losses and realizing a remarkable power saving as high as 46.8%.