一、产品简介　　HFM型无泄漏耐腐耐磨泵是一种新型的衬里型后吸式(轴密封位置与进液口同向)的耐腐耐磨泵。该泵是总结了普通耐腐耐磨泵，在配用了压滤机加压喂科逼压时，密封容塌泄漏或压力不足，过滤效果不好的情况下开发的一种新型压力输送泵，其中应用五项创新技术(专利)。其主要特点是：　　1、泵进液口在轴密封同向，轴密封处在负压环境下，因此不会泄漏，克服了泵有压滤机配用泵逼压运行时，轴密封易泄漏的固疾。　　2、应用范围广泛：该泵备有多种可以互换的衬里材料，可以适用各种化学性质的腐蚀性、磨蚀性清液和料浆的输送，而且各种不同材料的备件互换性能好，用户调整极为方便。　　3、运行费用低：其主要因素有二个，一是易损件泵盖和吸入口等用了分体式结构，设有独立的耐磨易损件，更换方便，更为经济。二是泵的密封不采用付叶轮(背叶轮)减压，节省了轴功率消耗，节省了能源。　　4、泵体和轴承座之间联接采用新型(专利)结构，密封部位空间大，密封件的调整、维护、检查都很方便。　　5、HFM-II型双级耐腐耐磨料浆泵的另一个优点是：耐磨性好，因为以较低的单个叶轮线速度，获得较高的泵出口压力，从而克服了单级料浆泵为增加压力而增加叶轮线速度，而导致叶轮、泵壳磨损加剧的缺点，有效提高了叶轮、泵盖等磨损件的使用寿命。　　6、HFM-II型双级耐腐耐磨泵由于压力高，在配用高压过滤的压滤机时、过滤效果好，滤饼含水量少，克服了压滤机配用泵压力不足的缺点。二、适用岗位　　1、本系列泵可输送100℃温度以内的各类腐蚀性和非腐蚀性清液和料浆及各类滤机加压喂料用泵．例如：有色金属的锌、铜、钴、镍、锰等湿法；台炼工艺的压滤机配用泵、矿山选矿、非金属矿产加工(钛白粉、高岭土等)工艺中的浆体输送泵，环保产业中的污泥、废渣输送泵，其它化工、染料、制药、食品生产工艺中的压滤泵。　　2、长期逼压运行(泵出口压力高)输送腐蚀性介质的岗位，如烟气脱硫、大气治理中的压力喷淋泵、压力冲洗泵等。　　3、其它泵输送介质时，容易泄漏的岗位。　　4、该泵有单级和双级二个系列，能满足需要小流量高压力输送腐蚀性科浆的岗位。不适用岗位：吸入口液体液位低于泵位置1.2m以下或吸入口负压过大的岗位。三、型号选定3.1 型号说明 3.2 过流材料的选定超高分子量聚乙烯(材料代号U)：适用于85℃温度以下的腐蚀性、磨蚀性料浆的输送。耐腐耐磨不锈钢：适用于110℃温度的磨蚀性料浆的输送。例如用于电解锌、电解锰等高温浸出的工序中的高温浆体的输送，效果会更好。聚丙烯(材料代号P)：用于无固相物料的清液的输送。例如废气处理系统的逼压喷淋泵(烟气脱硫等)氟塑料(材料代号F)：主要适用输送带溶剂的介质和强氧化性介质，例如浓硝酸等。聚氨脂橡胶(代号为PU)：主要适用于腐蚀性要求低，而磨蚀性严重的岗位，如排渣泵，或选矿中的旋流器配用泵。3.3.1 HFM-I系列泵性能型号表序号型号流量(m3/h)扬程(m)转速(r/min)功率(KW)进出口直径(mm×mm)重量(kg)轴功率配备电机d≤1.1g/min150HFM-Ⅰ-5-2552529001.131.550×40200250HFM-Ⅰ-5-3053029001.632.250×40200350HFM-Ⅰ-5-3553529002.07350×40215450HFM-Ⅰ-5-4054029002.72450×40220550HFM-Ⅰ-10-25102529001.94350×40215650HFM-Ⅰ-10-30103029002.7450×40220750HFM-Ⅰ-10-35103529003.55.550×40230850HFM-Ⅰ-10-40104029004.37.550×40235950HFM-Ⅰ-5-1051014500.450.7550×401981050HFM-Ⅰ-15-25152529002.6350×402151150HFM-Ⅰ-15-30153029003.2450×402201250HFM-Ⅰ-15-35153529004.15.550×402301350HFM-Ⅰ-15-40154029005.47.550×402351450HFM-Ⅰ-7.5-107.51014500.550.7550×401981550HFM-Ⅰ-20-25202529003.4450×402201650HFM-Ⅰ-20-30203029004.35.550×402301750HFM-Ⅰ-20-35203529005.47.550×402351850HFM-Ⅰ-20-40204029006.27.550×402351950HFM-Ⅰ-10-10101029000.781.150×402002065HFM-Ⅰ-10-40104029004.37.565×503802165HFM-Ⅰ-10-50105029005.447.565×503802265HFM-Ⅰ-10-60106029008.11165×503902365HFM-Ⅰ-5-1551514500.581.165×502152465HFM-Ⅰ-20-35203529005.447.565×502502565HFM-Ⅰ-20-40204029006.227.565×503802665HFM-Ⅰ-20-50205029009.071165×503902765HFM-Ⅰ-20-602060290010.21565×504102865HFM-Ⅰ-10-15101529001.372.265×503002965HFM-Ⅰ-30-35303529006.357.565×502703065HFM-Ⅰ-30-40304029009.31165×502903165HFM-Ⅰ-30-503050290011.671565×504103265HFM-Ⅰ-30-603060290015.3118.565×504103365HFM-Ⅰ-15-15151514501.752.265×503003480HFM-Ⅰ-30-35303529006.357.580×503803580HFM-Ⅰ-30-40304029009.31180×503903680HFM-Ⅰ-30-503050290011.671580×504103780HFM-Ⅰ-30-603060290015.3118.580×504203880HFM-Ⅰ-15-15151514501.752.280×502803980HFM-Ⅰ-40-35403529008.471180×503354080HFM-Ⅰ-40-404040290011.921580×503404180HFM-Ⅰ-40-504050290015.5618.580×504054280HFM-Ⅰ-40-604060290019.82280×504104380HFM-Ⅰ-20-15201514502.04380×502854480HFM-Ⅰ-45-35453529009.531180×503354580HFM-Ⅰ-45-404540290012.251580×503404680HFM-Ⅰ-45-504550290015.3118.580×504054780HFM-Ⅰ-45-604560290018.382280×504104880HFM-Ⅰ-22.5-1522.51514502.3380×502854980HFM-Ⅰ-50-355035290010.591580×503405080HFM-Ⅰ-50-405040290012.11580×503405180HFM-Ⅰ-50-455045290015.3118.580×504055280HFM-Ⅰ-50-505050290017.012280×5041053100HFM-Ⅰ-25-15251514502.55380×5028554100HFM-Ⅰ-50-355035290010.5915100×8042555100HFM-Ⅰ-50-405040290015.3118.5100×8049056100HFM-Ⅰ-50-505050295017.0122100×8049057100HFM-Ⅰ-25-15251514502.553100×8037558100HFM-Ⅰ-60-356035290012.715100×8042559100HFM-Ⅰ-60-406040290015.1918.5100×8049060100HFM-Ⅰ-60-456045290018.3422100×8049061100HFM-Ⅰ-60-506050290020.4230100×8056062100HFM-Ⅰ-60-606060290024.530100×8056063100HFM-Ⅰ-30-15301514502.724100×8038564100HFM-Ⅰ-80-358035290015.8818.5100×8049065100HFM-Ⅰ-80-408040290018.9422100×8049066100HFM-Ⅰ-80-458045290021.7830100×8056067100HFM-Ⅰ-80-508050290023.6730100×8056068100HFM-Ⅰ-40-15401514503.635.5100×8039069100HFM-Ⅰ-100-3010030290015.4118.5100×8049070100HFM-Ⅰ-100-3010035290017.6422100×8049071100HFM-Ⅰ-100-3510040290020.5530100×8056072100HFM-Ⅰ-100-4510045290025.5230100×8056073100HFM-Ⅰ-50-15501514503.715.5100×803903.3.2 HFM-II系列泵性能型号表序号型号流量(m3/h)扬程(m)转速(r/min)功率(KW)进出口直径(mm×mm)重量(kg)轴功率配备电机d≤1.1g/min150HFM-Ⅱ-5-4554529001.532.250×40240250HFM-Ⅱ-5-5055029002.06350×40260350HFM-Ⅱ-5-6056029002.72450×40270450HFM-Ⅱ-10-45104529004.085.550×40280550HFM-Ⅱ-10-50105029005.447.550×40280650HFM-Ⅱ-10-60106029007.421150×40315750HFM-Ⅱ-15-40154029004.675.550×40280850HFM-Ⅱ-15-45154529006.527.550×40280950HFM-Ⅱ-15-50155029007.291150×403151050HFM-Ⅱ-20-40204029007.261150×403151150HFM-Ⅱ-20-45204529008.751150×403151250HFM-Ⅱ-20-502050290010.081150×403151365HFM-Ⅱ-10-60106029007.151165×504601465HFM-Ⅱ-10-70107029008.661165×504601565HFM-Ⅱ-10-801080290010.371565×504701665HFM-Ⅱ-10-901090290012.251565×504701765HFM-Ⅱ-15-601560290071165×504601865HFM-Ⅱ-15-701570290010.201565×504701965HFM-Ⅱ-15-801580290013.061565×504702065HFM-Ⅱ-15-901590290015.818.565×504902165HFM-Ⅱ-20-602060290010.891565×504702265HFM-Ⅱ-20-702070290012.651565×504702365HFM-Ⅱ-20-802080290015.5618.565×504902465HFM-Ⅱ-30-603060290014.8418.565×504902565HFM-Ⅱ-30-703070290017.82265×505302665HFM-Ⅱ-30-803080290018.652265×505302780HFM-Ⅱ-20-602060290010.891580×654902880HFM-Ⅱ-20-702070290012.651580×654902980HFM-Ⅱ-20-802080290015.5618.580×655503080HFM-Ⅱ-30-603060290015.3118.580×655503180HFM-Ⅱ-30-703070290017.322280×655803280HFM-Ⅱ-30-803080290019.062280×655803380HFM-Ⅱ-40-604060290016.3318.580×655503480HFM-Ⅱ-40-704070290018.152280×655803580HFM-Ⅱ-40-804080290022.923080×6564036100HFM-Ⅱ-40-604060290016.3318.5100×8054037100HFM-Ⅱ-40-704070290018.1522100×8059038100HFM-Ⅱ-40-804080290022.9230100×8068039100HFM-Ⅱ-50-605060290019.4422100×8059040100HFM-Ⅱ-50-705070290023.2330100×8068041100HFM-Ⅱ-50-805080290026.5630100×8038042100HFM-Ⅱ-60-556055290022.4630100×8038043100HFM-Ⅱ-60-606060290024.530100×8038044100HFM-Ⅱ-60-706070290028.5837100×8070045100HFM-Ⅱ-70-507050290023.8230100×8068046100HFM-Ⅱ-70-607060290028.5837100×8070047100HFM-Ⅱ-70-707070290031.7537100×8070048100HFM-Ⅱ-80-508050290027.2237100×8070049100HFM-Ⅱ-80-608060290032.6737100×80700四、泵的整体结构图及部件名称 五、泵的安装、使用及维护  泵性能参数序号型号电机功率（KW）ABCEH1H2LL1L2L3L4L5L6hnxs1、250HFM-Ⅰ1.5-2.2KW-2290290330106.52421901015150500117215119185254×M163-550HFM-Ⅰ3KW-2290290330106.52421901045150530125215119185254×M166-950HFM-Ⅰ4KW-2290290330106.52421901065150530126215119185254×M1610-1250HFM-Ⅰ5.5KW-2290325365106.52421901120150563117215119185254×M1613-1650HFM-Ⅰ7.5KW-2290325365106.52421901120150563117215119185254×M1617、1850HFM-Ⅰ0.75KW-4290290330106.5242190975150500117215119185254×M161950HFM-Ⅰ1.1KW-4290290330106.52421901015150500117215119185254×M1620-2465HFM-Ⅰ7.5KW-23353554051252802281450190730180250150215354×M1825、2665HFM-Ⅰ11KW-23354254751252802281495190830180250150215354×M182765HFM-Ⅰ15KW-23354254751252802281450190830180250150215354×M1828、2965HFM-Ⅰ-H1.1KW-43354254751252802301450190830180250150215354×M183065HFM-Ⅰ-H11KW-23354254751252802301450190830180250150215354×M1831-3465HFM-Ⅰ-H15KW-23354254751252802301450190830180250150215354×M1835、3665HFM-Ⅰ-H2.2KW-43354254751252802301450190830180250150215354×M183765HFM-Ⅰ-H18.5KW-23354254751252802301450190830180250150215354×M183865HFM-Ⅰ-H22KW-23354254751252802301450190830180250150215354×M1839、4065HFM-Ⅰ-H3KW-43354254751252802301200190630180250150215354×M184180HFM-Ⅰ7.5KW-23354254751252802281450190830180250150215354×M1842-4480HFM-Ⅰ11KW-23354254751252802281450190830180250150215354×M1845-4980HFM-Ⅰ15KW-23354254751252802281450190830180250150215354×M1850-5280HFM-Ⅰ18.5KW-23354254751252802281450190830180250150215354×M185380HFM-Ⅰ22KW-23354254751252802281450190830180250150215354×M1854、5580HFM-Ⅰ3KW-43354254751252802281450190630180250150215354×M185680HFM-Ⅰ4KW-43354254751252802281450190630180250150215354×M185780HFM-Ⅰ-H18.5KW-23354254751252802301450190830180250150215354×M1858-6080HFM-Ⅰ-H22KW-23354254751252802301450190830180250150215354×M186180HFM-Ⅰ-H2.2KW-43354254751252802301200190630180250150215354×M1862、6380HFM-Ⅰ-H3KW-43354254751252802301200190630180250150215354×M186480HFM-Ⅰ-H4KW-43354254751252802301200190630180250150215354×M1865-6780HFM-Ⅰ-H230KW-23354705201253002301550190860200250150215354×M1868、69100HFM-Ⅰ15KW-23354254751302802251460190830180250150225354×M1870-72100HFM-Ⅰ18.5KW-23354254751302802251505190830180250150225354×M1873-77100HFM-Ⅰ22KW-23354254751302802251525190830180250150225354×M1878100HFM-Ⅰ3KW-43354254751302802251325190660180250150225354×M1879100HFM-Ⅰ4KW-43354254751302802251325190660180250150225354×M1880100HFM-Ⅰ5.5KW-43354254751302802251325190660180250150225354×M1881100HFM-Ⅰ7.5KW-43354254751302802251325190660180250150225354×M1882、83100HFM-Ⅰ-H4KW-43354254751302802351325190660180250150225354×M1884-89100HFM-Ⅰ-H230KW-23354705201303002351525190860200250150225354×M1890、91100HFM-Ⅰ-H25.5KW-43354254751302802351325190830180250150225354×M1892-94100HFM-Ⅰ-H237KW-23354705201303002351570190860200250150225354×M1895-97100HFM-Ⅰ-H245KW-23355205701303252351660190860265250150225354×M1898100HFM-Ⅰ-H255KW-23955606101303502351625190860180250150225354×M1899125HFM-Ⅰ22KW-23954334831303702251630280800204340165225354×M18100125HFM-Ⅰ5.5KW-43954334831303702251430280660204340165225354×M18101-103125HFM-Ⅰ7.5KW-43954334831303702251430280660204340165225354×M18104-106125HFM-Ⅰ-H230KW-23954725221303702351430280860220340165225354×M18107125HFM-Ⅰ-H237KW-23954725221303702351705280860220340165225354×M18108、109125HFM-Ⅰ-H245KW-23955105601303702351900280880220360165225354×M18110、111125HFM-Ⅰ-H255KW-23955606101303702351900280950240360165225354×M18泵性能参数序号型号电机功率（KW）ABCEFH1H2LL1L2L3L4L5L6hnxs150HFM-Ⅱ2.2KW-2290290330106.55462421901285150500117267171.5185254×M16250HFM-Ⅱ3KW-2290290330106.55462421901315150530126267171.5185254×M16350HFM-Ⅱ4KW-2290290330106.55462421901335150530126267171.5185254×M164-750HFM-Ⅱ5.5-7.5KW-2290325365106.55642421901390150563117267171.5185254×M168-1250HFM-Ⅱ11KW-2290370410106.55862421901532150620180267171.5185254×M1613-1565HFM-Ⅱ11KW-23354254751256852802181740190830180313.5213.5215354×M1816-2165HFM-Ⅱ15KW-23354254751256852802181740190830180313.5213.5215354×M1822-2465HFM-Ⅱ18.5KW-23354254751256852802181785190830180313.5213.5215354×M1825-2865HFM-Ⅱ22KW-23354254751256852802181805190830180313.5213.5215354×M182965HFM-Ⅱ30KW-23354705201257062802181879190830200313.5213.5215354×M183065HFM-Ⅱ37KW-23354705201257062802181879190830200313.5213.5215354×M1831、3280HFM-Ⅱ15KW-23354254751256852802281805190830180313.5213.5215354×M1833-3580HFM-Ⅱ18.5KW-23354254751256852802281805190830180313.5213.5215354×M1836-3880HFM-Ⅱ22KW-23354254751256852802281805190830180313.5213.5215354×M1839-4180HFM-Ⅱ30KW-23354705201256853002281879190860200313.5213.5215354×M1842、4380HFM-Ⅱ37KW-23354705201256853002281879190860200313.5213.5215354×M1844100HFM-Ⅱ18.5KW-23354254751257002802251810190830180325225215354×M1845、46100HFM-Ⅱ22KW-23354254751307002802251972190830180325225215354×M1847-52100HFM-Ⅱ30KW-23354705201307003002252080190860200325225215354×M1853-59100HFM-Ⅱ37KW-23354705201307003002252080190860200325225215354×M1860-63100HFM-Ⅱ45KW-23355205701307003252252120190860265325225215354×M1864-66100HFM-Ⅱ55KW-23955606101308353502252235280950200325225215354×M1867、68125HFM-Ⅱ37KW-23954725221307903702252080280860220415240225354×M1869、70125HFM-Ⅱ45KW-23955105601308103702252120280880220415240225354×M1871-74125HFM-Ⅱ55KW-23955606101308353702252235280950240415240225354×M18法兰连接尺寸d40506580100D145160180200215K110125145160180n-s4-Ф184-Ф184-Ф184-Ф184-Ф18泵的安装注意事项及安装示意图　　1．安装注意事项：　　1.1 泵的进出口依次安装阀门及橡胶抗震节(管道补偿器)以方便检修。　　1.2 在泵的安装顺序上．要先连接进出口管路镙栓，再紧固定脚螺栓，以防连接管路时对泵产生拉伸性应力，损坏泵机。　　1.3 出口管路距离长(高)的岗位及HFM-Ⅱ型泵，应在出口处按装上止回阀，以防停车时出口高压水锤对泵产生破坏力。　　1.4 泵的进出口管路的配置：为减少管道流阻、提高管道的输送效率，泵的配管应大于泵进出口一个等级。　　1.5 泵的进出口管路应设重力支撑系统，泵不能承受管道重量。　　2．槽位安装示意及注意事项：  泵的启动、运行及润滑保护　　1、运行前的检查　　试运行前应先用手盘动联轴器或轴，检查转向是否正确，运转是否灵活．如盘不动或有异常声音，应及时检查。检查时先从外部着手检查联轴器是否水平，从轴承座上的油镜孔处查看润滑油的位置是否在油镜的中心线附近(太多应放掉一些，太少应加上一些)，边检查边盘动，如果问题依然存在，就要拆泵检查(拆泵时请参照本说明书上的结构简图和拆装程序)，清理异物，并和本厂联系协商解决办法，同时检查外冷却系统有无加冷却水或加注(存)冷却油。　　2、开车步骤　　a．将泵内灌满液体　　b．先打开进口阀门　　c．接通电源　　d．再打开出口阀门　　3、运行　　运行中如有异常声音，或有电机发热等不正常情况出现时，也应停机检查，检查方法和步骤同上(运行前检查)。　　4、停机　　a．先关闭出口处阀门　　b．切断电源，并及时关闭进口处阀门　　5、轴承座的润滑维护　　轴承座中应定期更换润滑油(20#机油)，一般以运行6个月为更换周期。加注润滑油的油位以到油镜中心线为好(见图)。油位太低起不到润滑作用，太高轴功率消耗负荷增加。维修时的拆装程序　　1、拆卸(单级型)：见单级结构图　　A：拆下轴承座(3)和泵壳(29)间的连接镙栓，卸下泵壳(29)。　　B：用专用板手旋下拼帽(27)和锁紧镙母(28)，取下锁紧螺母垫床(26)。　　C：卸下叶轮(24)后，从轴座上取下后泵盖(20)、后泵盖压紧环(19)和吸入口三通(16)，在取下收入口三通之前，先拧下密封圈压紧盖(12)。　　D：卸下后泵盖(20)和吸入口三通（16) (二者之间为螺纹连接)，然后卸下K形密封圈(13)。　　E：卸下轴套（14、17)再依次卸下轴承压盖(8)和轴承(2、6)、主轴(1)。　　2、拆卸(双级型)：见双级结构图　　A：和单级型不同的是应先卸下第一级出口和第二级入口的联管，再卸下第二级前泵盖(33)，再卸下拼帽(30)和锁紧螺母(29)(用本厂供应的专用工具拆卸)，再卸下叶轮二(27)。　　B： 其它部位的拆卸方法同HFM-I(单级型)相同。　　3、安装(单级型)：见单级结构图　　安装时按相反顺序进行，注意事项是：　　A：垫好各部件之间的垫床，不能漏垫。①、后轴套(14)和档酸片(11)之间，②、前轴套(17)与叶轮(24)之间，③、后轴套(14)和前轴套(17)之间，④、叶轮(24)和锁紧螺母(28)之间。⑤、泵壳(29)和后泵盖(20)之间。⑥、后泵盖(20)和吸入口三通(16)之间的，共6个垫床。　　B：按装时注意控制叶轮(24)和后泵盖(20)之间的间隙，一般控制在1-2mm之间，间隙小了组件受热膨胀，产生摩擦损坏泵盖、叶轮，间隙大了影响泵效率。　　C：K形密封圈(13)的安装应注意：泵机组安装完毕后，应再松开密封圈压紧盖(12)、转动主轴(1)，调整好K形圈(13)和轴套的同心度后，再拧紧密封圈压紧盖(12)即可。　　D：在轴承座里的注20#机油，机油油面线为视镜的中线。　　E：盘动联轴器，检查传动是否灵活，如有卡死点，应查明泵因并调整妥当后再开机。　　4、 安装(双级型)：见双级结构图　　A：HFM-l型泵和HFM-I型泵的安装方法相应区别在于增加安装吸入口联管和安装叶轮二(27)及前泵盖(33)的程序。　　B：其它安装方法相同。特别提示:容易漏装的工件：一、档酸片垫床(10)。如果漏装会造成轴套开裂。二、漏装三通垫(18)，后果是吸入进气。三、漏装叶轮项圈(22)，后果是叶轮受力面太小，会移位。四、漏装拼帽(27)和与其配套的华司，后果是容易造成锁紧螺母(28)松动而漏酸，腐蚀主轴。六、主要故障原因分析及排除故障原因解决方法一、噪音大①、泵轴器不同轴。②、联轴器六角弹性块磨损。③、进口管路太小，或进口阀门未先打开。④、出口阀门开启太大。⑤、底脚镙栓松动面底板不平整。⑥、轴承损坏引起。⑦、泵腔内有杂物或叶轮变形。排除以上原因即可。二、流量不足或压力下降①、进出口管路堵塞。②、吸入口管路过长、过细。③、泵吸入口有塑料纸等杂物。④、料的浓度过高。⑤、叶轮或泵盖磨损．容积效率降低。⑥、电机缺相。⑦、电机反转或转速有误。⑧、吸程太高。查清以上原因，逐个排除。三、密封停车的泄露①、密封圈磨损。②、密封卷和轴套同轴度未调整到位。③、轴套开裂。④、泵壳、泵盖和轴座之间连接时不平行，影响了密封件心同轴度。查清原因，逐个调整。四、电机发热①、负载过大。②、电机轴承问题。③、泵主电联轴器间隙太小。①、调整电机功率。②、关小泵出口阀门。③、更换轴承。④、调整主电联轴器间隙。五、轴座发热①、轴承走外圈。②、轴承按装不平整。③、轴座前后二孔不同轴。④、轴承座侧盖太紧不平衡。查清原因，逐个调整。六、联轴器旋转不灵活①、轴承损坏。②、泵腔内叶轮和泵壳(盖)间隙小卡住了。③、泵腔内有泥砂泥浆阻碍叶轮转动。④、主电联轴器间隙太小。查清原因，逐个调整。