中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 柔性物缠绕对双吸式离心泵运行特性的影响 灌溉排水学报 2014,33 (1) 154-158
Position: Home > Articles > The Effects of Flexible Material Winding on Performance Characteristis of Double-suction Centrifugal Pump Journal of Irrigation and Drainage 2014,33 (1) 154-158

柔性物缠绕对双吸式离心泵运行特性的影响

作  者：
王志远;钱忠东;王凡;吴圆;张建军
单  位：
武汉大学水资源与水电工程科学国家重点实验室
关键词：
双吸式离心泵;外特性;压力脉动;振动;频谱分析
摘  要：
采用模型试验方法对比分析有无柔性胶管缠绕双吸式离心泵的外特性试验、压力脉动试验和振动试验。结果表明,被柔性胶管缠绕后,试验泵扬程变小,机组效率降低,且二者降低程度均随流量的增大而增大;试验泵压力脉动主频多为转频,且幅值均增大,流量越大,柔性胶管缠绕对压力脉动的影响越明显;试验泵传动端轴承座垂直方向转频和叶频振幅均减小,水平方向转频振幅在Q/Qn为0.7和1.0时减小,在Q/Qn为1.3时增大,而水平方向叶频振幅均增大。
译  名：
The Effects of Flexible Material Winding on Performance Characteristis of Double-suction Centrifugal Pump
作  者：
WANG Zhi-yuan;QIAN Zhong-dong;WANG Fan;WU Yuan;ZHANG Jian-jun;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University;
关键词：
double-suction centrifugal pump;;performance characteristic;;pressure pulsation;;vibration;;frequency spectrum analysis
摘  要：
The effects of flexible material winding on the external characteristics,pressure pulsation characteristics and vibration characteristics of double-suction centrifugal pump were studied using model test.The results showed that the test pump head became smaller,the unit efficiency decreased,and the decreased degrees of head and unit efficiency both increased with the increase of flow when the pump was bound by flexible hose.Most dominant frequencies of pressure fluctuation in the test pump were the rotation frequency,and the amplitudes all became bigger.The pressure pulsation was affected obviously by the flexible hose winding as the flow rates became larger.On the bearing chock of the test pump drive end,the rotation frequency and blade frequency amplitudes of the vertical vibration all decreased at the experimental flow rates.In the horizontal direction,the rotation frequency amplitudes of vibration were lower with flow rates of 0.7Qnand 1.0Qn,but the rotation frequency amplitude increased with flow rate of 1.3Qn,and the blade frequency amplitudes of the horizontal vibration all increased.

相似文章

导出引用
计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46