MD型耐磨多级离心泵(自平衡型)

MD系列耐磨多级离心泵(自平衡型)由长沙奔腾泵业(集团)有限公司提供(P)型煤矿用耐磨多级离心泵使用说明书(第2版)内容MD系列耐磨多级离心泵(自平衡型)使用说明书长沙奔腾泵业(集团)有限公司2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·······································903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型耐磨多级离心泵(自平衡型)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(P)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型耐磨多级离心泵(自平衡型)输送的介质温度不高于80℃。1.2泵型号意义说明MD(P)280-65×6100MD(P)45×8MD(P)—卧式多级离心泵100—吸入口直径为100mm280—设计点流量（m3/h）MD(P)—卧式多级离心泵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！42、结构特征MD(P)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MD(P)6-25、MD(P)12-25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MD(P)6-25、MD(P)12-25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。520、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63、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MD(P)6-2533.756.37.51.041.752.0876.57573.5295027.842.038.82.813.063.875.52.02.02.0138864102100983.754.085.167.5965127.5125122.54.685.116.457.510661531501475.626.137.74111167178.5175171.56.567.159.031112682042001967.498.1710.32151369229.5225220.58.439.1911.6115146102552502459.3710.2112.9018.515611280.5275269.510.311.2314.1918.51661230630029411.2412.2515.4818.517613331.5325318.512.1813.2816.7718.51861435735034313.1114.3018.0618.519672.0601.01.21.41.61.81020304050η(%)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MD(P)12-2537.512.515.02.083.474.1784.67569295036.852.149.54.704.905.697.52.02.02.01461064112.8100926.266.537.591111951411251157.838.179.49111316169.21501389.399.8011.39151447197.417516110.9611.4313.29151578225.620018412.5213.0715.1818.51709253.822520714.0914.7017.0818.51831028225023015.6516.3318.982219511310.227525317.2217.9720.882220812338.430027618.7819.6022.783022313366.632529920.3521.2424.673023614394.835032221.9122.8726.57302508(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MD(P)12-5036.312.515.01.753.474.17156150135295023.042.540.611.6412.0113.5818.52.02.02.0200258420820018015.5216.0218.1122279526025022519.3920.0222.6430300631230027023.2724.0327.1730321736435031527.1528.0331.6937342841640036031.0332.0436.2245363946845040534.9136.0440.75453841052050045038.7940.0545.28554051157255049542.6744.0549.80554261262460054046.5548.0654.337544796(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MD(P)25-3031525304.176.948.331029082.5295044.659.856.09.3410.2512.04152.02.02.0160175413612011012.4613.6616.0518.51925170150137.515.5717.0820.0622209620418016518.6820.4924.07302267238210192.521.8023.9128.0830243827224022024.9127.3232.10372609306270247.528.0330.7436.11372771034030027531.1434.1640.1245294108HηPa(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MD(P)46-3033046558.3312.815.31029075295053.966.862.215.4616.8818.06222.02.42.9164180413612010020.6122.5024.0830197517015012525.7728.1330.1037214620418015030.9233.7636.1237231723821017536.0839.3842.1445248827224020041.2245.0148.1655265930627022546.3850.6354.18552821034030025051.5456.2660.207529911(NPSH)rPaηH7050010203040η(%)604812Pa(kw)406