Chinese Journal of Ship Research, Volume. 16, Issue 3, 189(2021)
Influence of various wear ring clearances of centrifugal pump on output characteristic and excitation force properties
Figures & Tables(14)
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Table 1. Technical parameters of standard centrifugal pump
View tableView in ArticleTable 1. Technical parameters of standard centrifugal pump
技术参数 数值 标准流量Q/(m3·h−1) 40 标准扬程H/m 24.68 转速n/(r·min−1) 3 000 叶片数量Z 7 叶轮叶榖与上口环的连接外径/mm 124.01 叶轮叶榖与下口环的连接外径/mm 116.86 上口环内径/mm 124.70 下口环内径/mm 117.74
Table 2. Parameters of wear ring clearance
View tableView in ArticleTable 2. Parameters of wear ring clearance
口环编号 上口环 内直径/mm 上间隙 变化量/mm 下口环 内直径/mm 下间隙 变化量/mm 1 124.35 −0.35 117.38 −0.36 2 124.47 −0.23 117.50 −0.24 3 124.59 −0.11 117.63 −0.11 4 124.70 0 117.74 0 5 124.82 0.12 117.86 0.12 6 124.93 0.23 117.96 0.22 7 125.06 0.36 118.09 0.35
Table 3. Parameters for elastic component
View tableView in ArticleTable 3. Parameters for elastic component
型号 方向 额定 载荷/N 额定载荷下 静变形/mm 静刚度/ （N·mm−1） 动刚度/ （N·mm−1） 自由振动 频率/Hz КРМ-250 R 2450 3.9±0.9 720 1 200 9.5~12.5 Z 882 3.8±0.9 230 — — CU-100 Z 980 $5.0_{ - 0.5}^{ + 1.5}$ 230 360 9.5
Table 4. Parameters for vibration isolator
View tableView in ArticleTable 4. Parameters for vibration isolator
型号 方向 额定 载荷/N 额定载荷下 静变形/mm 静刚度/ （N·mm−1） 动刚度/ （N·mm−1） YT-580 X，Y 6076 3.9±0.9 1 740 2 800 Z 5684 $5.0_{ - 0.5}^{ + 1.5}$ 1 380 2 240
Table 5. Head characteristic datas of different wear ring clearances
View tableView in ArticleTable 5. Head characteristic datas of different wear ring clearances
口环编号 峰值流量/(m3·h−1) 峰值扬程/m 开口程度a2 拟合优度R2 1 11.37 29.14 5.4×10−3 0.991 1 2 5.51 28.97 4.1×10−3 0.985 4 3 10.03 27.56 5.6×10−3 0.984 6 4 9.30 27.19 5.9×10−3 0.977 6 5 9.75 27.39 6.3×10−3 0.969 4 6 7.21 26.49 6.4×10−3 0.960 9 7 7.43 26.24 7.6×10−3 0.958 3
Table 6. Power data of different wear ring clearances
View tableView in ArticleTable 6. Power data of different wear ring clearances
口环 轴功率变化率 /（kW·m−3·h) 0流量的轴功率 /kW 40 m3流量的 轴功率/kW 1 0.044 8 2.515 9 4.307 9 2 0.041 3 2.636 5 4.288 5 3 0.040 0 2.709 0 4.309 0 4 0.036 8 2.832 2 4.304 2 5 0.036 1 2.906 4 4.350 4 6 0.031 8 2.973 5 4.245 5 7 0.025 9 3.110 2 4.266 2
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Yunyi WEI, Cunsheng ZHAO, Zhe CUI. Influence of various wear ring clearances of centrifugal pump on output characteristic and excitation force properties[J]. Chinese Journal of Ship Research, 2021, 16(3): 189
Paper Information
Category: Marine Machinery, Electrical Equipment and Automation
Received: Nov. 21, 2019
Accepted: --
Published Online: Mar. 27, 2025
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