• Chinese Journal of Ship Research
  • Vol. 16, Issue 3, 189 (2021)
Yunyi WEI, Cunsheng ZHAO, and Zhe CUI
Author Affiliations
  • College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, China
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    DOI: 10.19693/j.issn.1673-3185.01832 Cite this Article
    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 Copy Citation Text show less
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    技术参数数值
    标准流量Q/(m3·h−1)40
    标准扬程H/m24.68
    转速n/(r·min−1)3 000
    叶片数量Z7
    叶轮叶榖与上口环的连接外径/mm124.01
    叶轮叶榖与下口环的连接外径/mm116.86
    上口环内径/mm124.70
    下口环内径/mm117.74
    Table 1. Technical parameters of standard centrifugal pump
    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
    1124.35−0.35117.38−0.36
    2124.47−0.23117.50−0.24
    3124.59−0.11117.63−0.11
    4124.700117.740
    5124.820.12117.860.12
    6124.930.23117.960.22
    7125.060.36118.090.35
    Table 2. Parameters of wear ring clearance
    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-250R24503.9±0.97201 2009.5~12.5
    Z8823.8±0.9230
    CU-100Z980$5.0_{ - 0.5}^{ + 1.5}$2303609.5
    Table 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
    YT-580X,Y60763.9±0.91 7402 800
    Z5684$5.0_{ - 0.5}^{ + 1.5}$1 3802 240
    Table 4. Parameters for vibration isolator
    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
    111.3729.145.4×10−30.991 1
    25.5128.974.1×10−30.985 4
    310.0327.565.6×10−30.984 6
    49.3027.195.9×10−30.977 6
    59.7527.396.3×10−30.969 4
    67.2126.496.4×10−30.960 9
    77.4326.247.6×10−30.958 3
    Table 5. Head characteristic datas of different wear ring clearances
    口环轴功率变化率/(kW·m3·h)0流量的轴功率/kW40 m3流量的轴功率/kW
    10.044 82.515 94.307 9
    20.041 32.636 54.288 5
    30.040 02.709 04.309 0
    40.036 82.832 24.304 2
    50.036 12.906 44.350 4
    60.031 82.973 54.245 5
    70.025 93.110 24.266 2
    Table 6. Power data of different wear ring clearances
    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
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