Dynamic Pressure Test and Analysis of Marine Ballasted Centrifugal Pump under Rapid Changing Conditions
Dynamic Pressure Test and Analysis of Marine Ballasted Centrifugal Pump under Rapid Changing Conditions
复制标题
船用压载离心泵在快速变化工况下的动压试验与分析
DOI：
10.3390/jmse9111299
复制
发表时间：
2021-11
影响因子：
2.9
通讯作者：
Houlin Liu
中科院分区：
文献类型：
--
作者：
Zhipeng Zhu;Houlin Liu
Ship ballast pumps have stringent requirements for their transient characteristics. Here, the pneumatic control valve and programmable logic controller (PLC) are applied to realize the rapid reduction in flow rate for ballast pumps, and the dynamic pressure of steady and transient conditions and inner flow for the ballast pump are tested and analyzed. The results show that the dynamic pressure of each study scheme has cyclical increasing trends, however, the larger the amplitude of the flow rate reduction is, the greater the pressure increasing rate of the two measuring points. While the flow rate decreases to 0.4× Qd and 0.2× Qd, the rate of pressure increase is first fast and then slow. The dynamic pressure pulsation intensity is higher than the corresponding steady-state conditions after the transient conditions. With the increase in flow rate reduction, the characteristic frequencies of the dynamic pressure are 1APF (axial passing frequency) and 1BPF (blade passing frequency) and their harmonic frequency. The rapid decrease in flow rate causes the separation vortex in the impeller channel to be generated in advance, and the scale increases, which reduces the pulsation intensity of the pump outlet to prevent an increase in the level of broadband pulsation between 2APF and 1BPF.
登录
查看更多内容
混流泵启动期瞬态流场数值模拟
DOI：
10.1108/hff-06-2017-0220
发表时间：
2018-05
影响因子：
4.2
作者：
LI Wei;ZHANG Yang;SHI Weidong;JI LeiLei;YANG YongFei;PING YuanFeng
通讯作者：
PING YuanFeng
影响因子：
2
作者：
H. Tsukamoto;Shigenori Matsunaga;H. Yoneda;S. Hata
通讯作者：
H. Tsukamoto;Shigenori Matsunaga;H. Yoneda;S. Hata
轴流泵启动瞬态特性数值模拟与实验研究
影响因子：
8.7
作者：
Fu, Shifeng;Zheng, Yuan;Tian, Xiaoqing
通讯作者：
Tian, Xiaoqing
影响因子：
2.7
作者：
K. Farhadi;A. Bousbia-salah;F. D’Auria
通讯作者：
K. Farhadi;A. Bousbia-salah;F. D’Auria
影响因子：
2.4
作者：
Wu Da
通讯作者：
Wu Da