MD型煤矿用耐磨多级离心泵使用说明书

MD型煤矿用耐磨多级离心泵使用说明书(第2版)内容MD系列煤矿用多级耐磨离心泵使用说明书湘潭泵业集团有限公司花石水泵厂1目录1、概述·················································12、结构特征·············································23、技术特性—性能曲线及性能表···························44、安装图及安装尺寸表··································435、安装、调整··········································856、使用、操作··········································877、故障分析与排除······································888、保养、维修··········································889、运输、贮存··········································9010、开箱及检查·········································9011、简单计算说明·······································902本使用说明书编写依据：GB9969.1—1998《工业产品使用说明书总则》1、概述1.1MD型煤矿用耐磨多级离心泵，是我厂在D型煤矿用卧式单吸多级离心泵的基础上，改进设计的一种耐磨多级离心泵。MD型煤矿用耐磨多级离心泵高效节能，耐磨可靠，寿命长。适用于输送清水及固体颗粒含量不大于1.5%(体积浓度)的中性矿井水(粒度小于0.5mm)，以及类似的其他污水的液体。特别适用于煤矿等矿山排水。MD型煤矿用耐磨多级离心泵输送的介质温度不高于80℃。1.2泵型号意义说明MD280-65×6100MD45×8MD—煤矿用耐磨多级离心泵100—吸入口直径为100mm280—设计点流量（m3/h）MD—煤矿用耐磨多级离心泵65—设计点单级扬程（m）45—设计点单级扬程（m）6—泵的级数8—泵的级数1.3性能范围（按设计点）流量：6.3～720m3/h扬程：50～1140m1.4产品执行标准：MT/T114-2005《煤矿用多级离心泵》，Q/CSB1-2007《多级清水离心泵》。1.5警告警告a）本系列泵的配套电机：YB系列电机可用于井下，但不能用于采掘工作面，用于采掘工作面必须配用YBK系列电机，Y系列电机不能用于井下，电机必须要可靠接地！b）泵不允许在无液体介质状态下点动或运转！c）泵组的转动部分在运行时不准触摸！32、结构特征MD型煤矿用耐磨多级离心泵为两端支承，壳体部分为节段式，泵的传动方式是通过柱销弹性联轴器与电机联结，泵的旋转方向，从驱动端看，泵为顺时针方向旋转。泵的结构见图1。2.1定子部分主要由吸入段（进水段）、中段、吐出段（出水段）、导叶、填料函体（尾盖）和轴承体等分别用拉紧螺栓联接成一体，从联轴器端看，泵吸入口为水平右方向，吐出口为垂直向上。2.2转子部分主要由轴、叶轮、平衡盘、轴承及轴套等组成。2.3泵的密封2.3.1泵吸入段（进水段）、中段、吐出段（出水段）之间的静止结合面用纸垫或二硫化钼来密封。2.3.2泵各级间采用节流密封。2.3.3泵的两侧轴封采用软填料密封。2.3.4采用挡水圈挡水，防止水进入轴承。2.4轴承部分除MD6-25、MD12-25型泵轴承采用《GB/T292-94》角接触球轴承以外，其余泵型的整个转子由两端的圆柱滚子轴承《GB/T283-94》支承；轴承采用3号通用锂基润滑脂润滑。由于MD6-25、MD12-25型泵轴承采用了《GB/T292-94》角接触球轴承，所以转子无轴向窜动量，其余泵型的转子应有轴向窜动量。2.5平衡部分由于叶轮前后盖板受压面积不等，产生轴向力，此轴向力由平衡装置承担。泵的平衡装置由平衡盘、平衡套、平衡环组成。泵的平衡室由吐出段（出水段）、填料函体（尾盖）、平衡水管部件所组成，平衡水管部件绝对不允许堵塞，可用闸阀调节平衡水管部件内水的流动。420、填料压盖19、填料18、水封管部件17、平衡盘16、填料函体（尾盖）15、平衡环14、平衡套13、吐出段（出水段）12、导叶套11、平衡水管部件10、导叶9、中段8、叶轮7、密封环6、吸入段（进水段）5、拉紧螺栓4、轴3、滚动轴承部件2、滚动轴承1、柱销弹性联轴器部件2019181716151413121110987654321图1　MD型煤矿用耐磨多级离心泵结构图53、技术特性—性能曲线及性能表1.4(NPSH)rPaHηPa(kw)η(%)3(m/h)(L/s)Q(m)(NPSH)rH(m)50403020101.21.00.80.60.4302010420300.511.522.51086420n=2950r/min性能曲线图MD6-25性能表型号级数流量Q扬程H(m)转速n(r/min)效率η(%)功率(kw)必需汽蚀余量(NPSH)r(m)叶轮直径(mm)质量(kg)(m3/h)(L/s)轴功率Pa电机功率MD6-2533.756.37.51.041.752.0876.57573.5295027.842.038.82.813.063.875.52.02.02.0138864102100983.754.085.167.5965127.5125122.54.685.116.457.510661531501475.626.137.74111167178.5175171.56.567.159.031112682042001967.498.1710.32151369229.5225220.58.439.1911.6115146102552502459.3710.2112.9018.515611280.5275269.510.311.2314.1918.51661230630029411.2412.2515.4818.517613331.5325318.512.1813.2816.7718.51861435735034313.1114.3018.0618.519662.0601.01.21.41.61.81020304050η(%)Pa(kw)024102030H(m)(NPSH)r(m)HηPa(NPSH)r3(m/h)(L/s)Q0123451612840性能曲线图n=2950r/minMD12-25性能表型号级数流量Q扬程H(m)转速n(r/min)效率η(%)功率(kw)必需汽蚀余量(NPSH)r(m)叶轮直径(mm)质量(kg)(m3/h)(L/s)轴功率Pa电机功率MD12-2537.512.515.02.083.474.1784.67569295036.852.149.54.704.905.697.52.02.02.01461064112.8100926.266.537.591111951411251157.838.179.49111316169.21501389.399.8011.39151447197.417516110.9611.4313.29151578225.620018412.5213.0715.1818.51709253.822520714.0914.7017.0818.51831028225023015.6516.3318.982219511310.227525317.2217.9720.882220812338.430027618.7819.6022.783022313366.632529920.3521.2424.673023614394.835032221.9122.8726.57302507(NPSH)rPaHη6050203040H(m)601020304050η(%)501234Pa(kw)3012(NPSH)r(m)0481216205432106Q(L/s)(m/h)3性能曲线图n=2950r/minMD12-50性能表型号级数流量Q扬程H(m)转速n(r/min)效率η(%)功率(kw)必需汽蚀余量(NPSH)r(m)叶轮直径(mm)质量(kg)(m3/h)(L/s)轴功率Pa电机功率MD12-5036.312.515.01.753.474.17156150135295023.042.540.611.6412.0113.5818.52.02.02.0200258420820018015.5216.0218.1122279526025022519.3920.0222.6430300631230027023.2724.0327.1730321736435031527.1528.0331.6937342841640036031.0332.0436.2245363946845040534.9136.0440.75453841052050045038.7940.0545.28554051157255049542.6744.0549.80554261262460054046.5548.0654.337544786(NPSH)rPaHη70η(%)504030201060Pa(kw)420H(m)403020(m)(NPSH)r21033020789100105432106Q(L/s)(m/h)3性能曲线图n=2950r/minMD25-30性能表型号级数流量Q扬程H(m)转速n(r/min)效率η(%)功率(kw)必需汽蚀余量(NPSH)r(m)叶轮直径(mm)质量(kg)(m3/h)(L/s)轴功率Pa电机功率MD25-3031525304.176.948.331029082.5295044.659.856.09.3410.2512.04152.02.02.0160175413612011012.4613.6616.0518.51925170150137.515.5717.0820.0622209620418016518.6820.4924.07302267238210192.521.8023.9128.0830243827224022024.9127.3232.10372609306270247.528.0330.7436.11372771034030027531.1434.1640.124529498HηPa(NPSH)r601020304050η(%)70246Pa(kw)203040H(m)6024(NPSH)r(m)20141618706001020304050108642012Q(L/s)(m/h)3性能曲线图n=2950r/minMD46-30性能表型号级数流量Q扬程H(m)转速n(r/min)效率η(%)功率(kw)必需汽蚀余量(NPSH)r(m)叶轮直径(mm)质量(kg)(m3/h)(L/s)轴功率Pa电机功率MD46-3033046558.3312.815.31029075295053.966.862.215.4616.8818.06222.02.42.9164180413612010020.6122.5024.0830197517015012525.7728.1330.1037214620418015030.9233.7636.1237231723821017536.0839.3842.1445248827224020041.2245.0148.1655265930627022546.3850.6354.18552821034030025051.5456.2660.207529910(NPSH)rPaηH7050010203040η(%)604812Pa(kw)4060H(m)705030024(NPSH)r(m)3(m/h)(L/s)Q12024681050403020100607018161420性能曲线图n=2950r/minMD46-50/84性能表