莫诺螺杆泵配件推荐厂家「在线咨询」

杆柱脱落Rod shedding杆柱脱落也是螺杆泵常发生的一种故障现象，表现为运行电流很低，井口也无产液，正反循环油套不连通，通过对扣或下入抽油杆打捞工具就可以进行处理来恢复生产。抽油杆脱落也有两种情况，一是脱扣，一是掳扣。造成脱扣的原因是停机后抽油杆柱扭转变形余能释放引起杆柱反转，可以采取在地面和抽油杆柱上安装防倒装置进行防止。造成杆柱掳扣的原因有三个：一个是稠油井在长时间关井后再启泵时，启动扭矩特别大，把螺纹损坏了；一个是油特别稠，螺杆泵长期在高扭矩下工作而把螺纹损坏；再有一个原因是定子部分脱胶，转子转不动造成的。



Ａ、定子A, stator定子是螺杆泵的一个关键部件，并直接影响到井下机组的寿命。定子制造质量越高，井下机组的寿命就越长。定子的作用就是提供转子工作和液体抽汲的螺旋腔，其结构非常简单，由钢制外壳和塑料／橡胶衬套内腔有双螺旋、三螺旋、四螺旋甚至五螺旋、六螺旋，在相同尺寸下，螺旋数越多，泵的排量越高。The stator is a key component of the screw pump, which directly affects the life of the downhole unit. The higher the quality of the stator, the longer the life of the downhole unit. The role is to provide a rotor stator and liquid pumping spiral cavity drain, the structure is very simple, a steel shell and a plastic / rubber bushing cavity with double helix, three helix, four or even five, six spiral helical spiral, in the same size, the number of spiral, the displacement of the pump is high.



Ｅ、抽油杆扶正器E, sucker rod centralizer抽油杆扶正器由心轴和扶正筒组成，它接在两根抽油杆之间，被卡在两个抽油杆接箍之间。心轴也就是一要极短的抽油杆短节。扶正筒是一个内孔比心轴大１ＭＭ左右的空心塑料筒，外部有四个略比油管内径小的扶正翼，采取浇注成型。扶正筒可以围绕心轴转动，防止抽油杆旋转时与内壁接触而磨蚀油管，又可以让流体通过。The sucker rod centralizer is comed of the heart shaft and the upright cylinder, which is connected between the two sucker rods and is stuck between the two sucker rod hoops. The axis of the heart is also an extremely short rod short section. The centering cylinder is a hollow plastic tube inner hole Bixin shaft around 1MM, external four slightly smaller than the diameter of the tubing centralizer wing, adopt casting. The centralizer can revolve around the axis to prevent the sucker rod from touching the inner wall when it rotates, and it can also let the fluid pass through.



 单螺杆泵类别：    泵从大类分为两种：容积泵和流量泵。    容积泵：通过泵的传动部件形成的空腔转运流体，传动部件的转动移出流体分为往复式和旋转式两大类    流量泵：带给流体动能，流体转运和循环；不允许干运行，液面以下运转单螺杆泵特点：    1、在低转速工况下压力稳定    2、低必须气蚀余量    3、可输送含大颗粒的介质    4、可输送含磨蚀性的介质    5、压力可至48B    6、流量稳定、可用于计量加药    7、流量对介质的粘度高低影响不大    8、只有一处轴封、便于检修