第32卷第3期 2012年9月
核科学与工程
Nuclear Science and Engineering
Vol.32No.3
Sep.2012
双泵并联给水系统切换方式模拟研究
王鑫1，韩伟实1，何艺峰1,2，幸莫川1
（1.哈尔滨工程大学核科学与技术学院，黑龙江哈尔滨1500012.西北核技术研究所，陕西西安710024）
摘要：建立双泵并联给水系统模型，对双泵切换过程中三种不同切换方式进行模拟研究，第一种切换方作。通过试验验证了模型的准确性，模拟结果表明，第一种切换方式条件下系统流量失水量最小，第三种切换方式条件下系统流量波动最小；相同切换方式条件下，双案切换时间间隔越短，系统流量波动越
小，系统恢复稳定时间越短。在实际情况中，要尽量缩短双泵切换时间间隔。关键词：双泵并联给水系统；流量波动；切换方式
中图分类号：TL35
文标志码：A
文章编号：0258-0918(2012)03-0234-04
Switching mode simulation of parallel pumps feedwater system
WANG Xin',HAN Wei-shi',HE Yi-feng'-,XING Dian-chuan
(1. College of Nuclear Science and Technology, Harbin Engineering University, Harbin of Hei longjiang Prov. ,150001,
2. Northwest Institute of Nuclear Technology, Xi'an of Shanxi prov, ,710024)
Abstract:In this paper,a model of Parallel Pumps Feedwater System (PPFS) is established,which is verified the validity via experiments. Then simulating study of three different switching modes is presented for PPFS during the alternate startup process. The first switching mode is starting the pump in standby before shutting down the pump in operation, the second one is starting the pump in standby after shutting down the pump in operation,and the third one is operating two pumps at the same time. The simulation results show that the loss of water in the first switching mode is the smallest and the system flow oscillation in the third mode is the smallest. Moreover, in the same switching mode,the shorter the time between the pumps switching is,the smaller system flow fluctuation is and the shorter the time is needed to recover stability. Key words: parallel pumps feedwater system; flow fluctuations; switching mode
离心泵是给水系统中的重要设备，在实际应用中为了保证连续供水、提高给水系统稳定收稿日期：2011-12-16；修回日期：2012-04-25
性和可靠性，经常设置两台相同的离心泵，台运行，另一台备用。当一台给水泵停机时另一
作奢简介：王鑫(1985—），男，河北唐山人，博士研究生，核能科学与工程专业 234