管柱脱落的故障现象是：运行电流很低，基本上是电机的空载电流，除了有一股一股的气外，井口基本上无产液，正发循环时油套连通。Thefailurephenomenonofthestringis:therunningcurrentisverylow,basicallythemotorsnoloadcurrent.Besidesthegaswithasinglestrandofgas,thewellheadbasicallyhasnoliquidproduction,andtheoilsleeveisconnectedwhencirculating.减少管柱脱落的措施有：将油管上扣扭矩由原来的值提高到值；采用油管螺纹垫片；定子上的装卸短节采用防松螺纹连接；采用油管锚或张力封隔器固定螺杆泵。Themeasurestoreducethefallingoffofthepipestringareasfollows:increasethetorquefromtheoriginalvaluetothemaximumvalue;usetheoilpipescrewgasket;theloadingandunloadingjointonthestatorisconnectedbylooseningscrewthread;andusetheoilpipeanchorortensionpackertofixthescrewpump.Ｂ、转子B,rotors转子的结构也非常简单，主体是钢制杆件，一般外涂耐磨耐蚀的铬合金材料。其作用是传递动力和写定子形成密封腔。Thestructureoftherotorisalsoverysimple,themainbodyissteelrod,generallycoatedwithabrasionresistantandcorrosionresistantchromiumalloymaterial.Itsfunctionistotransferpowerandwritethestatortoformasealc***ity.Ｃ、回转筒C,rotarybarrel回转筒也就是一根内径较大的油管或空心定子筒，接在定子的上部以给转子和抽油杆杆柱以较大的回旋空间，防止转子和抽油杆因偏心运动磨擦磨损油管。Arotarycylinderisalsoanoiltubeorhollowstatorbarrelwithlargerinnerdiameter.Itisconnectedtotheupperpartofthestatortoprovidelargerswirlspacefortherotorandsuckerrodstring,soastopreventtherotorandsuckerrodfromattritionwearduetoeccentricwear.Ｆ、抽油杆F,suckerrod所使用的抽油杆是常用的普通抽油杆、空心抽油杆和连续抽油杆，可根据油井确定。Thesuckerrodusediscommonlyusedasacommon1suckerrod,hollowsuckerrodandcontinuoussuckerrod,whichcanbedeterminedaccordingtotheoilwell.Ｇ、定子扶正器G,statorcentralizer定子扶正器为有一定弹性的笼形装罩，每一对由两半构成，中间大、两端小。作用是使定子居中和减小定子的摆动。Thestatorcentralizerisacageshapedcoverwithacertainelasticity.Eachpairismadeupoftwohalves,largeinthemiddleand***allatbothends.Thefunctionistomakethestatormiddleandreducethestatorwobble.Ｈ、锚定装置H,anchoringdevice对于没有封隔器的井和泵挂深度浅的井，用于固定定子、消除摆动和防止定子脱扣。采用普通的锚定装置即可。Forwellswithoutpackersandshallowwellswithdeeppumps,itisusedtofixthestator,eliminatetheswingingandpreventthetrippingofthestator.Acommonanchoringdevicecanbeused.污泥输送泵多用于排放粘度较高的输送机械。利用叶轮的水利设计减少堵塞现象;轴和油室的密封紧密;安装方便减少了操作的繁琐，并且使用方便;易于维护。污泥输送泵不仅在生活中使用方便，使用寿命也长。在规定条件下，故障运行时间不小于10000h，整机使用寿命不小于20年。污泥输送泵的发展是因为其自身的技术特点及结构的合理，给我们带来很大程度的方便。)